diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/mmu')
41 files changed, 6061 insertions, 1200 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/Kbuild b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/Kbuild index 012c9db687b2..352a65f9371c 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/Kbuild +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/Kbuild @@ -3,4 +3,33 @@ nvkm-y += nvkm/subdev/mmu/nv04.o nvkm-y += nvkm/subdev/mmu/nv41.o nvkm-y += nvkm/subdev/mmu/nv44.o nvkm-y += nvkm/subdev/mmu/nv50.o +nvkm-y += nvkm/subdev/mmu/g84.o nvkm-y += nvkm/subdev/mmu/gf100.o +nvkm-y += nvkm/subdev/mmu/gk104.o +nvkm-y += nvkm/subdev/mmu/gk20a.o +nvkm-y += nvkm/subdev/mmu/gm200.o +nvkm-y += nvkm/subdev/mmu/gm20b.o +nvkm-y += nvkm/subdev/mmu/gp100.o +nvkm-y += nvkm/subdev/mmu/gp10b.o + +nvkm-y += nvkm/subdev/mmu/mem.o +nvkm-y += nvkm/subdev/mmu/memnv04.o +nvkm-y += nvkm/subdev/mmu/memnv50.o +nvkm-y += nvkm/subdev/mmu/memgf100.o + +nvkm-y += nvkm/subdev/mmu/vmm.o +nvkm-y += nvkm/subdev/mmu/vmmnv04.o +nvkm-y += nvkm/subdev/mmu/vmmnv41.o +nvkm-y += nvkm/subdev/mmu/vmmnv44.o +nvkm-y += nvkm/subdev/mmu/vmmnv50.o +nvkm-y += nvkm/subdev/mmu/vmmgf100.o +nvkm-y += nvkm/subdev/mmu/vmmgk104.o +nvkm-y += nvkm/subdev/mmu/vmmgk20a.o +nvkm-y += nvkm/subdev/mmu/vmmgm200.o +nvkm-y += nvkm/subdev/mmu/vmmgm20b.o +nvkm-y += nvkm/subdev/mmu/vmmgp100.o +nvkm-y += nvkm/subdev/mmu/vmmgp10b.o + +nvkm-y += nvkm/subdev/mmu/umem.o +nvkm-y += nvkm/subdev/mmu/ummu.o +nvkm-y += nvkm/subdev/mmu/uvmm.o diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c index d06ad2c372bf..ee11ccaf0563 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c @@ -21,478 +21,367 @@ * * Authors: Ben Skeggs */ -#include "priv.h" +#include "ummu.h" +#include "vmm.h" -#include <core/gpuobj.h> +#include <subdev/bar.h> #include <subdev/fb.h> -void -nvkm_vm_map_at(struct nvkm_vma *vma, u64 delta, struct nvkm_mem *node) -{ - struct nvkm_vm *vm = vma->vm; - struct nvkm_mmu *mmu = vm->mmu; - struct nvkm_mm_node *r = node->mem; - int big = vma->node->type != mmu->func->spg_shift; - u32 offset = vma->node->offset + (delta >> 12); - u32 bits = vma->node->type - 12; - u32 pde = (offset >> mmu->func->pgt_bits) - vm->fpde; - u32 pte = (offset & ((1 << mmu->func->pgt_bits) - 1)) >> bits; - u32 max = 1 << (mmu->func->pgt_bits - bits); - u32 end, len; - - delta = 0; - while (r) { - u64 phys = (u64)r->offset << 12; - u32 num = r->length >> bits; - - while (num) { - struct nvkm_memory *pgt = vm->pgt[pde].mem[big]; - - end = (pte + num); - if (unlikely(end >= max)) - end = max; - len = end - pte; - - mmu->func->map(vma, pgt, node, pte, len, phys, delta); - - num -= len; - pte += len; - if (unlikely(end >= max)) { - phys += len << (bits + 12); - pde++; - pte = 0; - } - - delta += (u64)len << vma->node->type; - } - r = r->next; - }; +#include <nvif/if500d.h> +#include <nvif/if900d.h> - mmu->func->flush(vm); -} +struct nvkm_mmu_ptp { + struct nvkm_mmu_pt *pt; + struct list_head head; + u8 shift; + u16 mask; + u16 free; +}; static void -nvkm_vm_map_sg_table(struct nvkm_vma *vma, u64 delta, u64 length, - struct nvkm_mem *mem) +nvkm_mmu_ptp_put(struct nvkm_mmu *mmu, bool force, struct nvkm_mmu_pt *pt) { - struct nvkm_vm *vm = vma->vm; - struct nvkm_mmu *mmu = vm->mmu; - int big = vma->node->type != mmu->func->spg_shift; - u32 offset = vma->node->offset + (delta >> 12); - u32 bits = vma->node->type - 12; - u32 num = length >> vma->node->type; - u32 pde = (offset >> mmu->func->pgt_bits) - vm->fpde; - u32 pte = (offset & ((1 << mmu->func->pgt_bits) - 1)) >> bits; - u32 max = 1 << (mmu->func->pgt_bits - bits); - unsigned m, sglen; - u32 end, len; - int i; - struct scatterlist *sg; - - for_each_sg(mem->sg->sgl, sg, mem->sg->nents, i) { - struct nvkm_memory *pgt = vm->pgt[pde].mem[big]; - sglen = sg_dma_len(sg) >> PAGE_SHIFT; - - end = pte + sglen; - if (unlikely(end >= max)) - end = max; - len = end - pte; - - for (m = 0; m < len; m++) { - dma_addr_t addr = sg_dma_address(sg) + (m << PAGE_SHIFT); - - mmu->func->map_sg(vma, pgt, mem, pte, 1, &addr); - num--; - pte++; - - if (num == 0) - goto finish; - } - if (unlikely(end >= max)) { - pde++; - pte = 0; - } - if (m < sglen) { - for (; m < sglen; m++) { - dma_addr_t addr = sg_dma_address(sg) + (m << PAGE_SHIFT); - - mmu->func->map_sg(vma, pgt, mem, pte, 1, &addr); - num--; - pte++; - if (num == 0) - goto finish; - } - } - + const int slot = pt->base >> pt->ptp->shift; + struct nvkm_mmu_ptp *ptp = pt->ptp; + + /* If there were no free slots in the parent allocation before, + * there will be now, so return PTP to the cache. + */ + if (!ptp->free) + list_add(&ptp->head, &mmu->ptp.list); + ptp->free |= BIT(slot); + + /* If there's no more sub-allocations, destroy PTP. */ + if (ptp->free == ptp->mask) { + nvkm_mmu_ptc_put(mmu, force, &ptp->pt); + list_del(&ptp->head); + kfree(ptp); } -finish: - mmu->func->flush(vm); + + kfree(pt); } -static void -nvkm_vm_map_sg(struct nvkm_vma *vma, u64 delta, u64 length, - struct nvkm_mem *mem) +struct nvkm_mmu_pt * +nvkm_mmu_ptp_get(struct nvkm_mmu *mmu, u32 size, bool zero) { - struct nvkm_vm *vm = vma->vm; - struct nvkm_mmu *mmu = vm->mmu; - dma_addr_t *list = mem->pages; - int big = vma->node->type != mmu->func->spg_shift; - u32 offset = vma->node->offset + (delta >> 12); - u32 bits = vma->node->type - 12; - u32 num = length >> vma->node->type; - u32 pde = (offset >> mmu->func->pgt_bits) - vm->fpde; - u32 pte = (offset & ((1 << mmu->func->pgt_bits) - 1)) >> bits; - u32 max = 1 << (mmu->func->pgt_bits - bits); - u32 end, len; - - while (num) { - struct nvkm_memory *pgt = vm->pgt[pde].mem[big]; - - end = (pte + num); - if (unlikely(end >= max)) - end = max; - len = end - pte; - - mmu->func->map_sg(vma, pgt, mem, pte, len, list); - - num -= len; - pte += len; - list += len; - if (unlikely(end >= max)) { - pde++; - pte = 0; + struct nvkm_mmu_pt *pt; + struct nvkm_mmu_ptp *ptp; + int slot; + + if (!(pt = kzalloc(sizeof(*pt), GFP_KERNEL))) + return NULL; + + ptp = list_first_entry_or_null(&mmu->ptp.list, typeof(*ptp), head); + if (!ptp) { + /* Need to allocate a new parent to sub-allocate from. */ + if (!(ptp = kmalloc(sizeof(*ptp), GFP_KERNEL))) { + kfree(pt); + return NULL; } - } - mmu->func->flush(vm); -} + ptp->pt = nvkm_mmu_ptc_get(mmu, 0x1000, 0x1000, false); + if (!ptp->pt) { + kfree(ptp); + kfree(pt); + return NULL; + } -void -nvkm_vm_map(struct nvkm_vma *vma, struct nvkm_mem *node) -{ - if (node->sg) - nvkm_vm_map_sg_table(vma, 0, node->size << 12, node); - else - if (node->pages) - nvkm_vm_map_sg(vma, 0, node->size << 12, node); - else - nvkm_vm_map_at(vma, 0, node); + ptp->shift = order_base_2(size); + slot = nvkm_memory_size(ptp->pt->memory) >> ptp->shift; + ptp->mask = (1 << slot) - 1; + ptp->free = ptp->mask; + list_add(&ptp->head, &mmu->ptp.list); + } + pt->ptp = ptp; + pt->sub = true; + + /* Sub-allocate from parent object, removing PTP from cache + * if there's no more free slots left. + */ + slot = __ffs(ptp->free); + ptp->free &= ~BIT(slot); + if (!ptp->free) + list_del(&ptp->head); + + pt->memory = pt->ptp->pt->memory; + pt->base = slot << ptp->shift; + pt->addr = pt->ptp->pt->addr + pt->base; + return pt; } -void -nvkm_vm_unmap_at(struct nvkm_vma *vma, u64 delta, u64 length) +struct nvkm_mmu_ptc { + struct list_head head; + struct list_head item; + u32 size; + u32 refs; +}; + +static inline struct nvkm_mmu_ptc * +nvkm_mmu_ptc_find(struct nvkm_mmu *mmu, u32 size) { - struct nvkm_vm *vm = vma->vm; - struct nvkm_mmu *mmu = vm->mmu; - int big = vma->node->type != mmu->func->spg_shift; - u32 offset = vma->node->offset + (delta >> 12); - u32 bits = vma->node->type - 12; - u32 num = length >> vma->node->type; - u32 pde = (offset >> mmu->func->pgt_bits) - vm->fpde; - u32 pte = (offset & ((1 << mmu->func->pgt_bits) - 1)) >> bits; - u32 max = 1 << (mmu->func->pgt_bits - bits); - u32 end, len; - - while (num) { - struct nvkm_memory *pgt = vm->pgt[pde].mem[big]; - - end = (pte + num); - if (unlikely(end >= max)) - end = max; - len = end - pte; - - mmu->func->unmap(vma, pgt, pte, len); - - num -= len; - pte += len; - if (unlikely(end >= max)) { - pde++; - pte = 0; - } + struct nvkm_mmu_ptc *ptc; + + list_for_each_entry(ptc, &mmu->ptc.list, head) { + if (ptc->size == size) + return ptc; } - mmu->func->flush(vm); -} + ptc = kmalloc(sizeof(*ptc), GFP_KERNEL); + if (ptc) { + INIT_LIST_HEAD(&ptc->item); + ptc->size = size; + ptc->refs = 0; + list_add(&ptc->head, &mmu->ptc.list); + } -void -nvkm_vm_unmap(struct nvkm_vma *vma) -{ - nvkm_vm_unmap_at(vma, 0, (u64)vma->node->length << 12); + return ptc; } -static void -nvkm_vm_unmap_pgt(struct nvkm_vm *vm, int big, u32 fpde, u32 lpde) +void +nvkm_mmu_ptc_put(struct nvkm_mmu *mmu, bool force, struct nvkm_mmu_pt **ppt) { - struct nvkm_mmu *mmu = vm->mmu; - struct nvkm_vm_pgd *vpgd; - struct nvkm_vm_pgt *vpgt; - struct nvkm_memory *pgt; - u32 pde; - - for (pde = fpde; pde <= lpde; pde++) { - vpgt = &vm->pgt[pde - vm->fpde]; - if (--vpgt->refcount[big]) - continue; - - pgt = vpgt->mem[big]; - vpgt->mem[big] = NULL; - - list_for_each_entry(vpgd, &vm->pgd_list, head) { - mmu->func->map_pgt(vpgd->obj, pde, vpgt->mem); + struct nvkm_mmu_pt *pt = *ppt; + if (pt) { + /* Handle sub-allocated page tables. */ + if (pt->sub) { + mutex_lock(&mmu->ptp.mutex); + nvkm_mmu_ptp_put(mmu, force, pt); + mutex_unlock(&mmu->ptp.mutex); + return; } - nvkm_memory_del(&pgt); + /* Either cache or free the object. */ + mutex_lock(&mmu->ptc.mutex); + if (pt->ptc->refs < 8 /* Heuristic. */ && !force) { + list_add_tail(&pt->head, &pt->ptc->item); + pt->ptc->refs++; + } else { + nvkm_memory_unref(&pt->memory); + kfree(pt); + } + mutex_unlock(&mmu->ptc.mutex); } } -static int -nvkm_vm_map_pgt(struct nvkm_vm *vm, u32 pde, u32 type) +struct nvkm_mmu_pt * +nvkm_mmu_ptc_get(struct nvkm_mmu *mmu, u32 size, u32 align, bool zero) { - struct nvkm_mmu *mmu = vm->mmu; - struct nvkm_vm_pgt *vpgt = &vm->pgt[pde - vm->fpde]; - struct nvkm_vm_pgd *vpgd; - int big = (type != mmu->func->spg_shift); - u32 pgt_size; + struct nvkm_mmu_ptc *ptc; + struct nvkm_mmu_pt *pt; int ret; - pgt_size = (1 << (mmu->func->pgt_bits + 12)) >> type; - pgt_size *= 8; - - ret = nvkm_memory_new(mmu->subdev.device, NVKM_MEM_TARGET_INST, - pgt_size, 0x1000, true, &vpgt->mem[big]); - if (unlikely(ret)) - return ret; - - list_for_each_entry(vpgd, &vm->pgd_list, head) { - mmu->func->map_pgt(vpgd->obj, pde, vpgt->mem); + /* Sub-allocated page table (ie. GP100 LPT). */ + if (align < 0x1000) { + mutex_lock(&mmu->ptp.mutex); + pt = nvkm_mmu_ptp_get(mmu, align, zero); + mutex_unlock(&mmu->ptp.mutex); + return pt; } - vpgt->refcount[big]++; - return 0; -} - -int -nvkm_vm_get(struct nvkm_vm *vm, u64 size, u32 page_shift, u32 access, - struct nvkm_vma *vma) -{ - struct nvkm_mmu *mmu = vm->mmu; - u32 align = (1 << page_shift) >> 12; - u32 msize = size >> 12; - u32 fpde, lpde, pde; - int ret; - - mutex_lock(&vm->mutex); - ret = nvkm_mm_head(&vm->mm, 0, page_shift, msize, msize, align, - &vma->node); - if (unlikely(ret != 0)) { - mutex_unlock(&vm->mutex); - return ret; + /* Lookup cache for this page table size. */ + mutex_lock(&mmu->ptc.mutex); + ptc = nvkm_mmu_ptc_find(mmu, size); + if (!ptc) { + mutex_unlock(&mmu->ptc.mutex); + return NULL; } - fpde = (vma->node->offset >> mmu->func->pgt_bits); - lpde = (vma->node->offset + vma->node->length - 1) >> mmu->func->pgt_bits; - - for (pde = fpde; pde <= lpde; pde++) { - struct nvkm_vm_pgt *vpgt = &vm->pgt[pde - vm->fpde]; - int big = (vma->node->type != mmu->func->spg_shift); + /* If there's a free PT in the cache, reuse it. */ + pt = list_first_entry_or_null(&ptc->item, typeof(*pt), head); + if (pt) { + if (zero) + nvkm_fo64(pt->memory, 0, 0, size >> 3); + list_del(&pt->head); + ptc->refs--; + mutex_unlock(&mmu->ptc.mutex); + return pt; + } + mutex_unlock(&mmu->ptc.mutex); - if (likely(vpgt->refcount[big])) { - vpgt->refcount[big]++; - continue; - } + /* No such luck, we need to allocate. */ + if (!(pt = kmalloc(sizeof(*pt), GFP_KERNEL))) + return NULL; + pt->ptc = ptc; + pt->sub = false; - ret = nvkm_vm_map_pgt(vm, pde, vma->node->type); - if (ret) { - if (pde != fpde) - nvkm_vm_unmap_pgt(vm, big, fpde, pde - 1); - nvkm_mm_free(&vm->mm, &vma->node); - mutex_unlock(&vm->mutex); - return ret; - } + ret = nvkm_memory_new(mmu->subdev.device, NVKM_MEM_TARGET_INST, + size, align, zero, &pt->memory); + if (ret) { + kfree(pt); + return NULL; } - mutex_unlock(&vm->mutex); - vma->vm = NULL; - nvkm_vm_ref(vm, &vma->vm, NULL); - vma->offset = (u64)vma->node->offset << 12; - vma->access = access; - return 0; + pt->base = 0; + pt->addr = nvkm_memory_addr(pt->memory); + return pt; } void -nvkm_vm_put(struct nvkm_vma *vma) +nvkm_mmu_ptc_dump(struct nvkm_mmu *mmu) { - struct nvkm_mmu *mmu; - struct nvkm_vm *vm; - u32 fpde, lpde; - - if (unlikely(vma->node == NULL)) - return; - vm = vma->vm; - mmu = vm->mmu; - - fpde = (vma->node->offset >> mmu->func->pgt_bits); - lpde = (vma->node->offset + vma->node->length - 1) >> mmu->func->pgt_bits; - - mutex_lock(&vm->mutex); - nvkm_vm_unmap_pgt(vm, vma->node->type != mmu->func->spg_shift, fpde, lpde); - nvkm_mm_free(&vm->mm, &vma->node); - mutex_unlock(&vm->mutex); - - nvkm_vm_ref(NULL, &vma->vm, NULL); -} - -int -nvkm_vm_boot(struct nvkm_vm *vm, u64 size) -{ - struct nvkm_mmu *mmu = vm->mmu; - struct nvkm_memory *pgt; - int ret; - - ret = nvkm_memory_new(mmu->subdev.device, NVKM_MEM_TARGET_INST, - (size >> mmu->func->spg_shift) * 8, 0x1000, true, &pgt); - if (ret == 0) { - vm->pgt[0].refcount[0] = 1; - vm->pgt[0].mem[0] = pgt; - nvkm_memory_boot(pgt, vm); + struct nvkm_mmu_ptc *ptc; + list_for_each_entry(ptc, &mmu->ptc.list, head) { + struct nvkm_mmu_pt *pt, *tt; + list_for_each_entry_safe(pt, tt, &ptc->item, head) { + nvkm_memory_unref(&pt->memory); + list_del(&pt->head); + kfree(pt); + } } - - return ret; } -int -nvkm_vm_create(struct nvkm_mmu *mmu, u64 offset, u64 length, u64 mm_offset, - u32 block, struct lock_class_key *key, struct nvkm_vm **pvm) +static void +nvkm_mmu_ptc_fini(struct nvkm_mmu *mmu) { - static struct lock_class_key _key; - struct nvkm_vm *vm; - u64 mm_length = (offset + length) - mm_offset; - int ret; - - vm = kzalloc(sizeof(*vm), GFP_KERNEL); - if (!vm) - return -ENOMEM; - - __mutex_init(&vm->mutex, "&vm->mutex", key ? key : &_key); - INIT_LIST_HEAD(&vm->pgd_list); - vm->mmu = mmu; - kref_init(&vm->refcount); - vm->fpde = offset >> (mmu->func->pgt_bits + 12); - vm->lpde = (offset + length - 1) >> (mmu->func->pgt_bits + 12); - - vm->pgt = vzalloc((vm->lpde - vm->fpde + 1) * sizeof(*vm->pgt)); - if (!vm->pgt) { - kfree(vm); - return -ENOMEM; - } + struct nvkm_mmu_ptc *ptc, *ptct; - ret = nvkm_mm_init(&vm->mm, mm_offset >> 12, mm_length >> 12, - block >> 12); - if (ret) { - vfree(vm->pgt); - kfree(vm); - return ret; + list_for_each_entry_safe(ptc, ptct, &mmu->ptc.list, head) { + WARN_ON(!list_empty(&ptc->item)); + list_del(&ptc->head); + kfree(ptc); } - - *pvm = vm; - - return 0; } -int -nvkm_vm_new(struct nvkm_device *device, u64 offset, u64 length, u64 mm_offset, - struct lock_class_key *key, struct nvkm_vm **pvm) +static void +nvkm_mmu_ptc_init(struct nvkm_mmu *mmu) { - struct nvkm_mmu *mmu = device->mmu; - if (!mmu->func->create) - return -EINVAL; - return mmu->func->create(mmu, offset, length, mm_offset, key, pvm); + mutex_init(&mmu->ptc.mutex); + INIT_LIST_HEAD(&mmu->ptc.list); + mutex_init(&mmu->ptp.mutex); + INIT_LIST_HEAD(&mmu->ptp.list); } -static int -nvkm_vm_link(struct nvkm_vm *vm, struct nvkm_gpuobj *pgd) +static void +nvkm_mmu_type(struct nvkm_mmu *mmu, int heap, u8 type) { - struct nvkm_mmu *mmu = vm->mmu; - struct nvkm_vm_pgd *vpgd; - int i; - - if (!pgd) - return 0; - - vpgd = kzalloc(sizeof(*vpgd), GFP_KERNEL); - if (!vpgd) - return -ENOMEM; - - vpgd->obj = pgd; - - mutex_lock(&vm->mutex); - for (i = vm->fpde; i <= vm->lpde; i++) - mmu->func->map_pgt(pgd, i, vm->pgt[i - vm->fpde].mem); - list_add(&vpgd->head, &vm->pgd_list); - mutex_unlock(&vm->mutex); - return 0; + if (heap >= 0 && !WARN_ON(mmu->type_nr == ARRAY_SIZE(mmu->type))) { + mmu->type[mmu->type_nr].type = type | mmu->heap[heap].type; + mmu->type[mmu->type_nr].heap = heap; + mmu->type_nr++; + } } -static void -nvkm_vm_unlink(struct nvkm_vm *vm, struct nvkm_gpuobj *mpgd) +static int +nvkm_mmu_heap(struct nvkm_mmu *mmu, u8 type, u64 size) { - struct nvkm_vm_pgd *vpgd, *tmp; - - if (!mpgd) - return; - - mutex_lock(&vm->mutex); - list_for_each_entry_safe(vpgd, tmp, &vm->pgd_list, head) { - if (vpgd->obj == mpgd) { - list_del(&vpgd->head); - kfree(vpgd); - break; + if (size) { + if (!WARN_ON(mmu->heap_nr == ARRAY_SIZE(mmu->heap))) { + mmu->heap[mmu->heap_nr].type = type; + mmu->heap[mmu->heap_nr].size = size; + return mmu->heap_nr++; } } - mutex_unlock(&vm->mutex); + return -EINVAL; } static void -nvkm_vm_del(struct kref *kref) +nvkm_mmu_host(struct nvkm_mmu *mmu) { - struct nvkm_vm *vm = container_of(kref, typeof(*vm), refcount); - struct nvkm_vm_pgd *vpgd, *tmp; - - list_for_each_entry_safe(vpgd, tmp, &vm->pgd_list, head) { - nvkm_vm_unlink(vm, vpgd->obj); - } - - nvkm_mm_fini(&vm->mm); - vfree(vm->pgt); - kfree(vm); + struct nvkm_device *device = mmu->subdev.device; + u8 type = NVKM_MEM_KIND * !!mmu->func->kind_sys; + int heap; + + /* Non-mappable system memory. */ + heap = nvkm_mmu_heap(mmu, NVKM_MEM_HOST, ~0ULL); + nvkm_mmu_type(mmu, heap, type); + + /* Non-coherent, cached, system memory. + * + * Block-linear mappings of system memory must be done through + * BAR1, and cannot be supported on systems where we're unable + * to map BAR1 with write-combining. + */ + type |= NVKM_MEM_MAPPABLE; + if (!device->bar || device->bar->iomap_uncached) + nvkm_mmu_type(mmu, heap, type & ~NVKM_MEM_KIND); + else + nvkm_mmu_type(mmu, heap, type); + + /* Coherent, cached, system memory. + * + * Unsupported on systems that aren't able to support snooped + * mappings, and also for block-linear mappings which must be + * done through BAR1. + */ + type |= NVKM_MEM_COHERENT; + if (device->func->cpu_coherent) + nvkm_mmu_type(mmu, heap, type & ~NVKM_MEM_KIND); + + /* Uncached system memory. */ + nvkm_mmu_type(mmu, heap, type |= NVKM_MEM_UNCACHED); } -int -nvkm_vm_ref(struct nvkm_vm *ref, struct nvkm_vm **ptr, struct nvkm_gpuobj *pgd) +static void +nvkm_mmu_vram(struct nvkm_mmu *mmu) { - if (ref) { - int ret = nvkm_vm_link(ref, pgd); - if (ret) - return ret; - - kref_get(&ref->refcount); - } + struct nvkm_device *device = mmu->subdev.device; + struct nvkm_mm *mm = &device->fb->ram->vram; + const u32 sizeN = nvkm_mm_heap_size(mm, NVKM_RAM_MM_NORMAL); + const u32 sizeU = nvkm_mm_heap_size(mm, NVKM_RAM_MM_NOMAP); + const u32 sizeM = nvkm_mm_heap_size(mm, NVKM_RAM_MM_MIXED); + u8 type = NVKM_MEM_KIND * !!mmu->func->kind; + u8 heap = NVKM_MEM_VRAM; + int heapM, heapN, heapU; + + /* Mixed-memory doesn't support compression or display. */ + heapM = nvkm_mmu_heap(mmu, heap, sizeM << NVKM_RAM_MM_SHIFT); + + heap |= NVKM_MEM_COMP; + heap |= NVKM_MEM_DISP; + heapN = nvkm_mmu_heap(mmu, heap, sizeN << NVKM_RAM_MM_SHIFT); + heapU = nvkm_mmu_heap(mmu, heap, sizeU << NVKM_RAM_MM_SHIFT); + + /* Add non-mappable VRAM types first so that they're preferred + * over anything else. Mixed-memory will be slower than other + * heaps, it's prioritised last. + */ + nvkm_mmu_type(mmu, heapU, type); + nvkm_mmu_type(mmu, heapN, type); + nvkm_mmu_type(mmu, heapM, type); + + /* Add host memory types next, under the assumption that users + * wanting mappable memory want to use them as staging buffers + * or the like. + */ + nvkm_mmu_host(mmu); + + /* Mappable VRAM types go last, as they're basically the worst + * possible type to ask for unless there's no other choice. + */ + if (device->bar) { + /* Write-combined BAR1 access. */ + type |= NVKM_MEM_MAPPABLE; + if (!device->bar->iomap_uncached) { + nvkm_mmu_type(mmu, heapN, type); + nvkm_mmu_type(mmu, heapM, type); + } - if (*ptr) { - nvkm_vm_unlink(*ptr, pgd); - kref_put(&(*ptr)->refcount, nvkm_vm_del); + /* Uncached BAR1 access. */ + type |= NVKM_MEM_COHERENT; + type |= NVKM_MEM_UNCACHED; + nvkm_mmu_type(mmu, heapN, type); + nvkm_mmu_type(mmu, heapM, type); } - - *ptr = ref; - return 0; } static int nvkm_mmu_oneinit(struct nvkm_subdev *subdev) { struct nvkm_mmu *mmu = nvkm_mmu(subdev); - if (mmu->func->oneinit) - return mmu->func->oneinit(mmu); + + /* Determine available memory types. */ + if (mmu->subdev.device->fb && mmu->subdev.device->fb->ram) + nvkm_mmu_vram(mmu); + else + nvkm_mmu_host(mmu); + + if (mmu->func->vmm.global) { + int ret = nvkm_vmm_new(subdev->device, 0, 0, NULL, 0, NULL, + "gart", &mmu->vmm); + if (ret) + return ret; + } + return 0; } @@ -509,8 +398,10 @@ static void * nvkm_mmu_dtor(struct nvkm_subdev *subdev) { struct nvkm_mmu *mmu = nvkm_mmu(subdev); - if (mmu->func->dtor) - return mmu->func->dtor(mmu); + + nvkm_vmm_unref(&mmu->vmm); + + nvkm_mmu_ptc_fini(mmu); return mmu; } @@ -527,9 +418,10 @@ nvkm_mmu_ctor(const struct nvkm_mmu_func *func, struct nvkm_device *device, { nvkm_subdev_ctor(&nvkm_mmu, device, index, &mmu->subdev); mmu->func = func; - mmu->limit = func->limit; mmu->dma_bits = func->dma_bits; - mmu->lpg_shift = func->lpg_shift; + nvkm_mmu_ptc_init(mmu); + mmu->user.ctor = nvkm_ummu_new; + mmu->user.base = func->mmu.user; } int diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/g84.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/g84.c new file mode 100644 index 000000000000..8accda5a772b --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/g84.c @@ -0,0 +1,41 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "mem.h" +#include "vmm.h" + +#include <nvif/class.h> + +static const struct nvkm_mmu_func +g84_mmu = { + .dma_bits = 40, + .mmu = {{ -1, -1, NVIF_CLASS_MMU_NV50}}, + .mem = {{ -1, 0, NVIF_CLASS_MEM_NV50}, nv50_mem_new, nv50_mem_map }, + .vmm = {{ -1, -1, NVIF_CLASS_VMM_NV50}, nv50_vmm_new, false, 0x0200 }, + .kind = nv50_mmu_kind, + .kind_sys = true, +}; + +int +g84_mmu_new(struct nvkm_device *device, int index, struct nvkm_mmu **pmmu) +{ + return nvkm_mmu_new_(&g84_mmu, device, index, pmmu); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gf100.c index 7ac507c927bb..2d075246dc46 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gf100.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gf100.c @@ -21,197 +21,65 @@ * * Authors: Ben Skeggs */ -#include "priv.h" +#include "mem.h" +#include "vmm.h" -#include <subdev/fb.h> -#include <subdev/ltc.h> -#include <subdev/timer.h> - -#include <core/gpuobj.h> +#include <nvif/class.h> /* Map from compressed to corresponding uncompressed storage type. * The value 0xff represents an invalid storage type. */ -const u8 gf100_pte_storage_type_map[256] = -{ - 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0xff, 0x01, /* 0x00 */ - 0x01, 0x01, 0x01, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0x11, 0xff, 0xff, 0xff, 0xff, 0xff, 0x11, /* 0x10 */ - 0x11, 0x11, 0x11, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x26, 0x27, /* 0x20 */ - 0x28, 0x29, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30 */ - 0xff, 0xff, 0x26, 0x27, 0x28, 0x29, 0x26, 0x27, - 0x28, 0x29, 0xff, 0xff, 0xff, 0xff, 0x46, 0xff, /* 0x40 */ - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0x46, 0x46, 0x46, 0x46, 0xff, 0xff, 0xff, /* 0x50 */ - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60 */ - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70 */ - 0xff, 0xff, 0xff, 0x7b, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7b, 0x7b, /* 0x80 */ - 0x7b, 0x7b, 0xff, 0x8b, 0x8c, 0x8d, 0x8e, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90 */ - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0x8b, 0x8c, 0x8d, 0x8e, 0xa7, /* 0xa0 */ - 0xa8, 0xa9, 0xaa, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0 */ - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xa7, - 0xa8, 0xa9, 0xaa, 0xc3, 0xff, 0xff, 0xff, 0xff, /* 0xc0 */ - 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xc3, 0xc3, - 0xc3, 0xc3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0 */ - 0xfe, 0xff, 0xff, 0xfe, 0xff, 0xfe, 0xff, 0xfe, - 0xfe, 0xff, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xff, /* 0xe0 */ - 0xff, 0xfe, 0xff, 0xfe, 0xff, 0xfe, 0xfe, 0xff, - 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xf0 */ - 0xfe, 0xfe, 0xfe, 0xfe, 0xff, 0xfd, 0xfe, 0xff -}; - - -static void -gf100_vm_map_pgt(struct nvkm_gpuobj *pgd, u32 index, struct nvkm_memory *pgt[2]) -{ - u32 pde[2] = { 0, 0 }; - - if (pgt[0]) - pde[1] = 0x00000001 | (nvkm_memory_addr(pgt[0]) >> 8); - if (pgt[1]) - pde[0] = 0x00000001 | (nvkm_memory_addr(pgt[1]) >> 8); - - nvkm_kmap(pgd); - nvkm_wo32(pgd, (index * 8) + 0, pde[0]); - nvkm_wo32(pgd, (index * 8) + 4, pde[1]); - nvkm_done(pgd); -} - -static inline u64 -gf100_vm_addr(struct nvkm_vma *vma, u64 phys, u32 memtype, u32 target) -{ - phys >>= 8; - - phys |= 0x00000001; /* present */ - if (vma->access & NV_MEM_ACCESS_SYS) - phys |= 0x00000002; - - phys |= ((u64)target << 32); - phys |= ((u64)memtype << 36); - return phys; -} - -static void -gf100_vm_map(struct nvkm_vma *vma, struct nvkm_memory *pgt, - struct nvkm_mem *mem, u32 pte, u32 cnt, u64 phys, u64 delta) -{ - u64 next = 1 << (vma->node->type - 8); - - phys = gf100_vm_addr(vma, phys, mem->memtype, 0); - pte <<= 3; - - if (mem->tag) { - struct nvkm_ltc *ltc = vma->vm->mmu->subdev.device->ltc; - u32 tag = mem->tag->offset + (delta >> 17); - phys |= (u64)tag << (32 + 12); - next |= (u64)1 << (32 + 12); - nvkm_ltc_tags_clear(ltc, tag, cnt); - } - - nvkm_kmap(pgt); - while (cnt--) { - nvkm_wo32(pgt, pte + 0, lower_32_bits(phys)); - nvkm_wo32(pgt, pte + 4, upper_32_bits(phys)); - phys += next; - pte += 8; - } - nvkm_done(pgt); -} - -static void -gf100_vm_map_sg(struct nvkm_vma *vma, struct nvkm_memory *pgt, - struct nvkm_mem *mem, u32 pte, u32 cnt, dma_addr_t *list) -{ - u32 target = (vma->access & NV_MEM_ACCESS_NOSNOOP) ? 7 : 5; - /* compressed storage types are invalid for system memory */ - u32 memtype = gf100_pte_storage_type_map[mem->memtype & 0xff]; - - nvkm_kmap(pgt); - pte <<= 3; - while (cnt--) { - u64 phys = gf100_vm_addr(vma, *list++, memtype, target); - nvkm_wo32(pgt, pte + 0, lower_32_bits(phys)); - nvkm_wo32(pgt, pte + 4, upper_32_bits(phys)); - pte += 8; - } - nvkm_done(pgt); -} - -static void -gf100_vm_unmap(struct nvkm_vma *vma, struct nvkm_memory *pgt, u32 pte, u32 cnt) -{ - nvkm_kmap(pgt); - pte <<= 3; - while (cnt--) { - nvkm_wo32(pgt, pte + 0, 0x00000000); - nvkm_wo32(pgt, pte + 4, 0x00000000); - pte += 8; - } - nvkm_done(pgt); -} - -static void -gf100_vm_flush(struct nvkm_vm *vm) -{ - struct nvkm_mmu *mmu = vm->mmu; - struct nvkm_device *device = mmu->subdev.device; - struct nvkm_vm_pgd *vpgd; - u32 type; - - type = 0x00000001; /* PAGE_ALL */ - if (atomic_read(&vm->engref[NVKM_SUBDEV_BAR])) - type |= 0x00000004; /* HUB_ONLY */ - - mutex_lock(&mmu->subdev.mutex); - list_for_each_entry(vpgd, &vm->pgd_list, head) { - /* looks like maybe a "free flush slots" counter, the - * faster you write to 0x100cbc to more it decreases - */ - nvkm_msec(device, 2000, - if (nvkm_rd32(device, 0x100c80) & 0x00ff0000) - break; - ); - - nvkm_wr32(device, 0x100cb8, vpgd->obj->addr >> 8); - nvkm_wr32(device, 0x100cbc, 0x80000000 | type); - - /* wait for flush to be queued? */ - nvkm_msec(device, 2000, - if (nvkm_rd32(device, 0x100c80) & 0x00008000) - break; - ); - } - mutex_unlock(&mmu->subdev.mutex); -} - -static int -gf100_vm_create(struct nvkm_mmu *mmu, u64 offset, u64 length, u64 mm_offset, - struct lock_class_key *key, struct nvkm_vm **pvm) +const u8 * +gf100_mmu_kind(struct nvkm_mmu *mmu, int *count) { - return nvkm_vm_create(mmu, offset, length, mm_offset, 4096, key, pvm); + static const u8 + kind[256] = { + 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0xff, 0x01, /* 0x00 */ + 0x01, 0x01, 0x01, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0x11, 0xff, 0xff, 0xff, 0xff, 0xff, 0x11, /* 0x10 */ + 0x11, 0x11, 0x11, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x26, 0x27, /* 0x20 */ + 0x28, 0x29, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30 */ + 0xff, 0xff, 0x26, 0x27, 0x28, 0x29, 0x26, 0x27, + 0x28, 0x29, 0xff, 0xff, 0xff, 0xff, 0x46, 0xff, /* 0x40 */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0x46, 0x46, 0x46, 0x46, 0xff, 0xff, 0xff, /* 0x50 */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60 */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70 */ + 0xff, 0xff, 0xff, 0x7b, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7b, 0x7b, /* 0x80 */ + 0x7b, 0x7b, 0xff, 0x8b, 0x8c, 0x8d, 0x8e, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90 */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0x8b, 0x8c, 0x8d, 0x8e, 0xa7, /* 0xa0 */ + 0xa8, 0xa9, 0xaa, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0 */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xa7, + 0xa8, 0xa9, 0xaa, 0xc3, 0xff, 0xff, 0xff, 0xff, /* 0xc0 */ + 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xc3, 0xc3, + 0xc3, 0xc3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0 */ + 0xfe, 0xff, 0xff, 0xfe, 0xff, 0xfe, 0xff, 0xfe, + 0xfe, 0xff, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xff, /* 0xe0 */ + 0xff, 0xfe, 0xff, 0xfe, 0xff, 0xfe, 0xfe, 0xff, + 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xf0 */ + 0xfe, 0xfe, 0xfe, 0xfe, 0xff, 0xfd, 0xfe, 0xff + }; + + *count = ARRAY_SIZE(kind); + return kind; } static const struct nvkm_mmu_func gf100_mmu = { - .limit = (1ULL << 40), .dma_bits = 40, - .pgt_bits = 27 - 12, - .spg_shift = 12, - .lpg_shift = 17, - .create = gf100_vm_create, - .map_pgt = gf100_vm_map_pgt, - .map = gf100_vm_map, - .map_sg = gf100_vm_map_sg, - .unmap = gf100_vm_unmap, - .flush = gf100_vm_flush, + .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}}, + .mem = {{ -1, 0, NVIF_CLASS_MEM_GF100}, gf100_mem_new, gf100_mem_map }, + .vmm = {{ -1, -1, NVIF_CLASS_VMM_GF100}, gf100_vmm_new }, + .kind = gf100_mmu_kind, + .kind_sys = true, }; int diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gk104.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gk104.c new file mode 100644 index 000000000000..3d7d1eb1cff9 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gk104.c @@ -0,0 +1,41 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "mem.h" +#include "vmm.h" + +#include <nvif/class.h> + +static const struct nvkm_mmu_func +gk104_mmu = { + .dma_bits = 40, + .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}}, + .mem = {{ -1, 0, NVIF_CLASS_MEM_GF100}, gf100_mem_new, gf100_mem_map }, + .vmm = {{ -1, -1, NVIF_CLASS_VMM_GF100}, gk104_vmm_new }, + .kind = gf100_mmu_kind, + .kind_sys = true, +}; + +int +gk104_mmu_new(struct nvkm_device *device, int index, struct nvkm_mmu **pmmu) +{ + return nvkm_mmu_new_(&gk104_mmu, device, index, pmmu); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gk20a.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gk20a.c new file mode 100644 index 000000000000..ac74965a60d4 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gk20a.c @@ -0,0 +1,41 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "mem.h" +#include "vmm.h" + +#include <nvif/class.h> + +static const struct nvkm_mmu_func +gk20a_mmu = { + .dma_bits = 40, + .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}}, + .mem = {{ -1, -1, NVIF_CLASS_MEM_GF100}, .umap = gf100_mem_map }, + .vmm = {{ -1, -1, NVIF_CLASS_VMM_GF100}, gk20a_vmm_new }, + .kind = gf100_mmu_kind, + .kind_sys = true, +}; + +int +gk20a_mmu_new(struct nvkm_device *device, int index, struct nvkm_mmu **pmmu) +{ + return nvkm_mmu_new_(&gk20a_mmu, device, index, pmmu); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gm200.c new file mode 100644 index 000000000000..dbf644ebac97 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gm200.c @@ -0,0 +1,97 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "mem.h" +#include "vmm.h" + +#include <subdev/fb.h> + +#include <nvif/class.h> + +const u8 * +gm200_mmu_kind(struct nvkm_mmu *mmu, int *count) +{ + static const u8 + kind[256] = { + 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0xff, 0x01, /* 0x00 */ + 0x01, 0x01, 0x01, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0x11, 0xff, 0xff, 0xff, 0xff, 0xff, 0x11, /* 0x10 */ + 0x11, 0x11, 0x11, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x26, 0x27, /* 0x20 */ + 0x28, 0x29, 0x2a, 0x2b, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30 */ + 0xff, 0xff, 0x26, 0x27, 0x28, 0x29, 0x26, 0x27, + 0x28, 0x29, 0xff, 0xff, 0xff, 0xff, 0x46, 0xff, /* 0x40 */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0x46, 0x46, 0x46, 0x46, 0xff, 0xff, 0xff, /* 0x50 */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60 */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70 */ + 0xff, 0xff, 0xff, 0x7b, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7b, 0x7b, /* 0x80 */ + 0x7b, 0x7b, 0xff, 0x8b, 0x8c, 0x8d, 0x8e, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90 */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0x8b, 0x8c, 0x8d, 0x8e, 0xa7, /* 0xa0 */ + 0xa8, 0xa9, 0xaa, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0 */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xa7, + 0xa8, 0xa9, 0xaa, 0xc3, 0xff, 0xff, 0xff, 0xff, /* 0xc0 */ + 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xc3, 0xc3, + 0xc3, 0xc3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0 */ + 0xfe, 0xff, 0xff, 0xfe, 0xff, 0xfe, 0xff, 0xfe, + 0xfe, 0xff, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xff, /* 0xe0 */ + 0xff, 0xfe, 0xff, 0xfe, 0xff, 0xfe, 0xfe, 0xff, + 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xf0 */ + 0xfe, 0xfe, 0xfe, 0xfe, 0xff, 0xfd, 0xfe, 0xff + }; + *count = ARRAY_SIZE(kind); + return kind; +} + +static const struct nvkm_mmu_func +gm200_mmu = { + .dma_bits = 40, + .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}}, + .mem = {{ -1, 0, NVIF_CLASS_MEM_GF100}, gf100_mem_new, gf100_mem_map }, + .vmm = {{ -1, 0, NVIF_CLASS_VMM_GM200}, gm200_vmm_new }, + .kind = gm200_mmu_kind, + .kind_sys = true, +}; + +static const struct nvkm_mmu_func +gm200_mmu_fixed = { + .dma_bits = 40, + .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}}, + .mem = {{ -1, 0, NVIF_CLASS_MEM_GF100}, gf100_mem_new, gf100_mem_map }, + .vmm = {{ -1, -1, NVIF_CLASS_VMM_GM200}, gm200_vmm_new_fixed }, + .kind = gm200_mmu_kind, + .kind_sys = true, +}; + +int +gm200_mmu_new(struct nvkm_device *device, int index, struct nvkm_mmu **pmmu) +{ + if (device->fb->page) + return nvkm_mmu_new_(&gm200_mmu_fixed, device, index, pmmu); + return nvkm_mmu_new_(&gm200_mmu, device, index, pmmu); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gm20b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gm20b.c new file mode 100644 index 000000000000..7353a94b4091 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gm20b.c @@ -0,0 +1,55 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "mem.h" +#include "vmm.h" + +#include <subdev/fb.h> + +#include <nvif/class.h> + +static const struct nvkm_mmu_func +gm20b_mmu = { + .dma_bits = 40, + .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}}, + .mem = {{ -1, -1, NVIF_CLASS_MEM_GF100}, .umap = gf100_mem_map }, + .vmm = {{ -1, 0, NVIF_CLASS_VMM_GM200}, gm20b_vmm_new }, + .kind = gm200_mmu_kind, + .kind_sys = true, +}; + +static const struct nvkm_mmu_func +gm20b_mmu_fixed = { + .dma_bits = 40, + .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}}, + .mem = {{ -1, -1, NVIF_CLASS_MEM_GF100}, .umap = gf100_mem_map }, + .vmm = {{ -1, -1, NVIF_CLASS_VMM_GM200}, gm20b_vmm_new_fixed }, + .kind = gm200_mmu_kind, + .kind_sys = true, +}; + +int +gm20b_mmu_new(struct nvkm_device *device, int index, struct nvkm_mmu **pmmu) +{ + if (device->fb->page) + return nvkm_mmu_new_(&gm20b_mmu_fixed, device, index, pmmu); + return nvkm_mmu_new_(&gm20b_mmu, device, index, pmmu); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gp100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gp100.c new file mode 100644 index 000000000000..651b8805c67c --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gp100.c @@ -0,0 +1,45 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "mem.h" +#include "vmm.h" + +#include <core/option.h> + +#include <nvif/class.h> + +static const struct nvkm_mmu_func +gp100_mmu = { + .dma_bits = 47, + .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}}, + .mem = {{ -1, 0, NVIF_CLASS_MEM_GF100}, gf100_mem_new, gf100_mem_map }, + .vmm = {{ -1, -1, NVIF_CLASS_VMM_GP100}, gp100_vmm_new }, + .kind = gm200_mmu_kind, + .kind_sys = true, +}; + +int +gp100_mmu_new(struct nvkm_device *device, int index, struct nvkm_mmu **pmmu) +{ + if (!nvkm_boolopt(device->cfgopt, "GP100MmuLayout", true)) + return gm200_mmu_new(device, index, pmmu); + return nvkm_mmu_new_(&gp100_mmu, device, index, pmmu); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gp10b. b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gp10b. new file mode 100644 index 000000000000..e69de29bb2d1 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gp10b. diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gp10b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gp10b.c new file mode 100644 index 000000000000..3bd3db31e0bb --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gp10b.c @@ -0,0 +1,45 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "mem.h" +#include "vmm.h" + +#include <core/option.h> + +#include <nvif/class.h> + +static const struct nvkm_mmu_func +gp10b_mmu = { + .dma_bits = 47, + .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}}, + .mem = {{ -1, -1, NVIF_CLASS_MEM_GF100}, .umap = gf100_mem_map }, + .vmm = {{ -1, -1, NVIF_CLASS_VMM_GP100}, gp10b_vmm_new }, + .kind = gm200_mmu_kind, + .kind_sys = true, +}; + +int +gp10b_mmu_new(struct nvkm_device *device, int index, struct nvkm_mmu **pmmu) +{ + if (!nvkm_boolopt(device->cfgopt, "GP100MmuLayout", true)) + return gm20b_mmu_new(device, index, pmmu); + return nvkm_mmu_new_(&gp10b_mmu, device, index, pmmu); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/mem.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/mem.c new file mode 100644 index 000000000000..39808489f21d --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/mem.c @@ -0,0 +1,242 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#define nvkm_mem(p) container_of((p), struct nvkm_mem, memory) +#include "mem.h" + +#include <core/memory.h> + +#include <nvif/if000a.h> +#include <nvif/unpack.h> + +struct nvkm_mem { + struct nvkm_memory memory; + enum nvkm_memory_target target; + struct nvkm_mmu *mmu; + u64 pages; + struct page **mem; + union { + struct scatterlist *sgl; + dma_addr_t *dma; + }; +}; + +static enum nvkm_memory_target +nvkm_mem_target(struct nvkm_memory *memory) +{ + return nvkm_mem(memory)->target; +} + +static u8 +nvkm_mem_page(struct nvkm_memory *memory) +{ + return PAGE_SHIFT; +} + +static u64 +nvkm_mem_addr(struct nvkm_memory *memory) +{ + struct nvkm_mem *mem = nvkm_mem(memory); + if (mem->pages == 1 && mem->mem) + return mem->dma[0]; + return ~0ULL; +} + +static u64 +nvkm_mem_size(struct nvkm_memory *memory) +{ + return nvkm_mem(memory)->pages << PAGE_SHIFT; +} + +static int +nvkm_mem_map_dma(struct nvkm_memory *memory, u64 offset, struct nvkm_vmm *vmm, + struct nvkm_vma *vma, void *argv, u32 argc) +{ + struct nvkm_mem *mem = nvkm_mem(memory); + struct nvkm_vmm_map map = { + .memory = &mem->memory, + .offset = offset, + .dma = mem->dma, + }; + return nvkm_vmm_map(vmm, vma, argv, argc, &map); +} + +static void * +nvkm_mem_dtor(struct nvkm_memory *memory) +{ + struct nvkm_mem *mem = nvkm_mem(memory); + if (mem->mem) { + while (mem->pages--) { + dma_unmap_page(mem->mmu->subdev.device->dev, + mem->dma[mem->pages], PAGE_SIZE, + DMA_BIDIRECTIONAL); + __free_page(mem->mem[mem->pages]); + } + kvfree(mem->dma); + kvfree(mem->mem); + } + return mem; +} + +static const struct nvkm_memory_func +nvkm_mem_dma = { + .dtor = nvkm_mem_dtor, + .target = nvkm_mem_target, + .page = nvkm_mem_page, + .addr = nvkm_mem_addr, + .size = nvkm_mem_size, + .map = nvkm_mem_map_dma, +}; + +static int +nvkm_mem_map_sgl(struct nvkm_memory *memory, u64 offset, struct nvkm_vmm *vmm, + struct nvkm_vma *vma, void *argv, u32 argc) +{ + struct nvkm_mem *mem = nvkm_mem(memory); + struct nvkm_vmm_map map = { + .memory = &mem->memory, + .offset = offset, + .sgl = mem->sgl, + }; + return nvkm_vmm_map(vmm, vma, argv, argc, &map); +} + +static const struct nvkm_memory_func +nvkm_mem_sgl = { + .dtor = nvkm_mem_dtor, + .target = nvkm_mem_target, + .page = nvkm_mem_page, + .addr = nvkm_mem_addr, + .size = nvkm_mem_size, + .map = nvkm_mem_map_sgl, +}; + +int +nvkm_mem_map_host(struct nvkm_memory *memory, void **pmap) +{ + struct nvkm_mem *mem = nvkm_mem(memory); + if (mem->mem) { + *pmap = vmap(mem->mem, mem->pages, VM_MAP, PAGE_KERNEL); + return *pmap ? 0 : -EFAULT; + } + return -EINVAL; +} + +static int +nvkm_mem_new_host(struct nvkm_mmu *mmu, int type, u8 page, u64 size, + void *argv, u32 argc, struct nvkm_memory **pmemory) +{ + struct device *dev = mmu->subdev.device->dev; + union { + struct nvif_mem_ram_vn vn; + struct nvif_mem_ram_v0 v0; + } *args = argv; + int ret = -ENOSYS; + enum nvkm_memory_target target; + struct nvkm_mem *mem; + gfp_t gfp = GFP_USER | __GFP_ZERO; + + if ( (mmu->type[type].type & NVKM_MEM_COHERENT) && + !(mmu->type[type].type & NVKM_MEM_UNCACHED)) + target = NVKM_MEM_TARGET_HOST; + else + target = NVKM_MEM_TARGET_NCOH; + + if (page != PAGE_SHIFT) + return -EINVAL; + + if (!(mem = kzalloc(sizeof(*mem), GFP_KERNEL))) + return -ENOMEM; + mem->target = target; + mem->mmu = mmu; + *pmemory = &mem->memory; + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { + if (args->v0.dma) { + nvkm_memory_ctor(&nvkm_mem_dma, &mem->memory); + mem->dma = args->v0.dma; + } else { + nvkm_memory_ctor(&nvkm_mem_sgl, &mem->memory); + mem->sgl = args->v0.sgl; + } + + if (!IS_ALIGNED(size, PAGE_SIZE)) + return -EINVAL; + mem->pages = size >> PAGE_SHIFT; + return 0; + } else + if ( (ret = nvif_unvers(ret, &argv, &argc, args->vn))) { + kfree(mem); + return ret; + } + + nvkm_memory_ctor(&nvkm_mem_dma, &mem->memory); + size = ALIGN(size, PAGE_SIZE) >> PAGE_SHIFT; + + if (!(mem->mem = kvmalloc(sizeof(*mem->mem) * size, GFP_KERNEL))) + return -ENOMEM; + if (!(mem->dma = kvmalloc(sizeof(*mem->dma) * size, GFP_KERNEL))) + return -ENOMEM; + + if (mmu->dma_bits > 32) + gfp |= GFP_HIGHUSER; + else + gfp |= GFP_DMA32; + + for (mem->pages = 0; size; size--, mem->pages++) { + struct page *p = alloc_page(gfp); + if (!p) + return -ENOMEM; + + mem->dma[mem->pages] = dma_map_page(mmu->subdev.device->dev, + p, 0, PAGE_SIZE, + DMA_BIDIRECTIONAL); + if (dma_mapping_error(dev, mem->dma[mem->pages])) { + __free_page(p); + return -ENOMEM; + } + + mem->mem[mem->pages] = p; + } + + return 0; +} + +int +nvkm_mem_new_type(struct nvkm_mmu *mmu, int type, u8 page, u64 size, + void *argv, u32 argc, struct nvkm_memory **pmemory) +{ + struct nvkm_memory *memory = NULL; + int ret; + + if (mmu->type[type].type & NVKM_MEM_VRAM) { + ret = mmu->func->mem.vram(mmu, type, page, size, + argv, argc, &memory); + } else { + ret = nvkm_mem_new_host(mmu, type, page, size, + argv, argc, &memory); + } + + if (ret) + nvkm_memory_unref(&memory); + *pmemory = memory; + return ret; +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/mem.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/mem.h new file mode 100644 index 000000000000..234267e1b215 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/mem.h @@ -0,0 +1,23 @@ +#ifndef __NVKM_MEM_H__ +#define __NVKM_MEM_H__ +#include "priv.h" + +int nvkm_mem_new_type(struct nvkm_mmu *, int type, u8 page, u64 size, + void *argv, u32 argc, struct nvkm_memory **); +int nvkm_mem_map_host(struct nvkm_memory *, void **pmap); + +int nv04_mem_new(struct nvkm_mmu *, int, u8, u64, void *, u32, + struct nvkm_memory **); +int nv04_mem_map(struct nvkm_mmu *, struct nvkm_memory *, void *, u32, + u64 *, u64 *, struct nvkm_vma **); + +int nv50_mem_new(struct nvkm_mmu *, int, u8, u64, void *, u32, + struct nvkm_memory **); +int nv50_mem_map(struct nvkm_mmu *, struct nvkm_memory *, void *, u32, + u64 *, u64 *, struct nvkm_vma **); + +int gf100_mem_new(struct nvkm_mmu *, int, u8, u64, void *, u32, + struct nvkm_memory **); +int gf100_mem_map(struct nvkm_mmu *, struct nvkm_memory *, void *, u32, + u64 *, u64 *, struct nvkm_vma **); +#endif diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/memgf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/memgf100.c new file mode 100644 index 000000000000..d9c9bee45222 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/memgf100.c @@ -0,0 +1,94 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "mem.h" + +#include <core/memory.h> +#include <subdev/bar.h> +#include <subdev/fb.h> + +#include <nvif/class.h> +#include <nvif/if900b.h> +#include <nvif/if900d.h> +#include <nvif/unpack.h> + +int +gf100_mem_map(struct nvkm_mmu *mmu, struct nvkm_memory *memory, void *argv, + u32 argc, u64 *paddr, u64 *psize, struct nvkm_vma **pvma) +{ + struct gf100_vmm_map_v0 uvmm = {}; + union { + struct gf100_mem_map_vn vn; + struct gf100_mem_map_v0 v0; + } *args = argv; + struct nvkm_device *device = mmu->subdev.device; + struct nvkm_vmm *bar = nvkm_bar_bar1_vmm(device); + int ret = -ENOSYS; + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { + uvmm.ro = args->v0.ro; + uvmm.kind = args->v0.kind; + } else + if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) { + } else + return ret; + + ret = nvkm_vmm_get(bar, nvkm_memory_page(memory), + nvkm_memory_size(memory), pvma); + if (ret) + return ret; + + ret = nvkm_memory_map(memory, 0, bar, *pvma, &uvmm, sizeof(uvmm)); + if (ret) + return ret; + + *paddr = device->func->resource_addr(device, 1) + (*pvma)->addr; + *psize = (*pvma)->size; + return 0; +} + +int +gf100_mem_new(struct nvkm_mmu *mmu, int type, u8 page, u64 size, + void *argv, u32 argc, struct nvkm_memory **pmemory) +{ + union { + struct gf100_mem_vn vn; + struct gf100_mem_v0 v0; + } *args = argv; + int ret = -ENOSYS; + bool contig; + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { + contig = args->v0.contig; + } else + if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) { + contig = false; + } else + return ret; + + if (mmu->type[type].type & (NVKM_MEM_DISP | NVKM_MEM_COMP)) + type = NVKM_RAM_MM_NORMAL; + else + type = NVKM_RAM_MM_MIXED; + + return nvkm_ram_get(mmu->subdev.device, type, 0x01, page, + size, contig, false, pmemory); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/memnv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/memnv04.c new file mode 100644 index 000000000000..79a3b0cc9f5b --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/memnv04.c @@ -0,0 +1,69 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "mem.h" + +#include <core/memory.h> +#include <subdev/fb.h> + +#include <nvif/if000b.h> +#include <nvif/unpack.h> + +int +nv04_mem_map(struct nvkm_mmu *mmu, struct nvkm_memory *memory, void *argv, + u32 argc, u64 *paddr, u64 *psize, struct nvkm_vma **pvma) +{ + union { + struct nv04_mem_map_vn vn; + } *args = argv; + struct nvkm_device *device = mmu->subdev.device; + const u64 addr = nvkm_memory_addr(memory); + int ret = -ENOSYS; + + if ((ret = nvif_unvers(ret, &argv, &argc, args->vn))) + return ret; + + *paddr = device->func->resource_addr(device, 1) + addr; + *psize = nvkm_memory_size(memory); + *pvma = ERR_PTR(-ENODEV); + return 0; +} + +int +nv04_mem_new(struct nvkm_mmu *mmu, int type, u8 page, u64 size, + void *argv, u32 argc, struct nvkm_memory **pmemory) +{ + union { + struct nv04_mem_vn vn; + } *args = argv; + int ret = -ENOSYS; + + if ((ret = nvif_unvers(ret, &argv, &argc, args->vn))) + return ret; + + if (mmu->type[type].type & NVKM_MEM_MAPPABLE) + type = NVKM_RAM_MM_NORMAL; + else + type = NVKM_RAM_MM_NOMAP; + + return nvkm_ram_get(mmu->subdev.device, type, 0x01, page, + size, true, false, pmemory); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/memnv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/memnv50.c new file mode 100644 index 000000000000..46759b89fc1f --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/memnv50.c @@ -0,0 +1,88 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "mem.h" + +#include <core/memory.h> +#include <subdev/bar.h> +#include <subdev/fb.h> + +#include <nvif/class.h> +#include <nvif/if500b.h> +#include <nvif/if500d.h> +#include <nvif/unpack.h> + +int +nv50_mem_map(struct nvkm_mmu *mmu, struct nvkm_memory *memory, void *argv, + u32 argc, u64 *paddr, u64 *psize, struct nvkm_vma **pvma) +{ + struct nv50_vmm_map_v0 uvmm = {}; + union { + struct nv50_mem_map_vn vn; + struct nv50_mem_map_v0 v0; + } *args = argv; + struct nvkm_device *device = mmu->subdev.device; + struct nvkm_vmm *bar = nvkm_bar_bar1_vmm(device); + u64 size = nvkm_memory_size(memory); + int ret = -ENOSYS; + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { + uvmm.ro = args->v0.ro; + uvmm.kind = args->v0.kind; + uvmm.comp = args->v0.comp; + } else + if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) { + } else + return ret; + + ret = nvkm_vmm_get(bar, 12, size, pvma); + if (ret) + return ret; + + *paddr = device->func->resource_addr(device, 1) + (*pvma)->addr; + *psize = (*pvma)->size; + return nvkm_memory_map(memory, 0, bar, *pvma, &uvmm, sizeof(uvmm)); +} + +int +nv50_mem_new(struct nvkm_mmu *mmu, int type, u8 page, u64 size, + void *argv, u32 argc, struct nvkm_memory **pmemory) +{ + union { + struct nv50_mem_vn vn; + struct nv50_mem_v0 v0; + } *args = argv; + int ret = -ENOSYS; + bool contig; + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { + type = args->v0.bankswz ? 0x02 : 0x01; + contig = args->v0.contig; + } else + if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) { + type = 0x01; + contig = false; + } else + return -ENOSYS; + + return nvkm_ram_get(mmu->subdev.device, NVKM_RAM_MM_NORMAL, type, + page, size, contig, false, pmemory); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv04.c index 37927c3fdc3e..d201c887c2cd 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv04.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv04.c @@ -21,129 +21,21 @@ * * Authors: Ben Skeggs */ -#include "nv04.h" +#include "mem.h" +#include "vmm.h" -#include <core/gpuobj.h> - -#define NV04_PDMA_SIZE (128 * 1024 * 1024) -#define NV04_PDMA_PAGE ( 4 * 1024) - -/******************************************************************************* - * VM map/unmap callbacks - ******************************************************************************/ - -static void -nv04_vm_map_sg(struct nvkm_vma *vma, struct nvkm_memory *pgt, - struct nvkm_mem *mem, u32 pte, u32 cnt, dma_addr_t *list) -{ - pte = 0x00008 + (pte * 4); - nvkm_kmap(pgt); - while (cnt) { - u32 page = PAGE_SIZE / NV04_PDMA_PAGE; - u32 phys = (u32)*list++; - while (cnt && page--) { - nvkm_wo32(pgt, pte, phys | 3); - phys += NV04_PDMA_PAGE; - pte += 4; - cnt -= 1; - } - } - nvkm_done(pgt); -} - -static void -nv04_vm_unmap(struct nvkm_vma *vma, struct nvkm_memory *pgt, u32 pte, u32 cnt) -{ - pte = 0x00008 + (pte * 4); - nvkm_kmap(pgt); - while (cnt--) { - nvkm_wo32(pgt, pte, 0x00000000); - pte += 4; - } - nvkm_done(pgt); -} - -static void -nv04_vm_flush(struct nvkm_vm *vm) -{ -} - -/******************************************************************************* - * MMU subdev - ******************************************************************************/ - -static int -nv04_mmu_oneinit(struct nvkm_mmu *base) -{ - struct nv04_mmu *mmu = nv04_mmu(base); - struct nvkm_device *device = mmu->base.subdev.device; - struct nvkm_memory *dma; - int ret; - - ret = nvkm_vm_create(&mmu->base, 0, NV04_PDMA_SIZE, 0, 4096, NULL, - &mmu->vm); - if (ret) - return ret; - - ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, - (NV04_PDMA_SIZE / NV04_PDMA_PAGE) * 4 + 8, - 16, true, &dma); - mmu->vm->pgt[0].mem[0] = dma; - mmu->vm->pgt[0].refcount[0] = 1; - if (ret) - return ret; - - nvkm_kmap(dma); - nvkm_wo32(dma, 0x00000, 0x0002103d); /* PCI, RW, PT, !LN */ - nvkm_wo32(dma, 0x00004, NV04_PDMA_SIZE - 1); - nvkm_done(dma); - return 0; -} - -void * -nv04_mmu_dtor(struct nvkm_mmu *base) -{ - struct nv04_mmu *mmu = nv04_mmu(base); - struct nvkm_device *device = mmu->base.subdev.device; - if (mmu->vm) { - nvkm_memory_del(&mmu->vm->pgt[0].mem[0]); - nvkm_vm_ref(NULL, &mmu->vm, NULL); - } - if (mmu->nullp) { - dma_free_coherent(device->dev, 16 * 1024, - mmu->nullp, mmu->null); - } - return mmu; -} - -int -nv04_mmu_new_(const struct nvkm_mmu_func *func, struct nvkm_device *device, - int index, struct nvkm_mmu **pmmu) -{ - struct nv04_mmu *mmu; - if (!(mmu = kzalloc(sizeof(*mmu), GFP_KERNEL))) - return -ENOMEM; - *pmmu = &mmu->base; - nvkm_mmu_ctor(func, device, index, &mmu->base); - return 0; -} +#include <nvif/class.h> const struct nvkm_mmu_func nv04_mmu = { - .oneinit = nv04_mmu_oneinit, - .dtor = nv04_mmu_dtor, - .limit = NV04_PDMA_SIZE, .dma_bits = 32, - .pgt_bits = 32 - 12, - .spg_shift = 12, - .lpg_shift = 12, - .map_sg = nv04_vm_map_sg, - .unmap = nv04_vm_unmap, - .flush = nv04_vm_flush, + .mmu = {{ -1, -1, NVIF_CLASS_MMU_NV04}}, + .mem = {{ -1, -1, NVIF_CLASS_MEM_NV04}, nv04_mem_new, nv04_mem_map }, + .vmm = {{ -1, -1, NVIF_CLASS_VMM_NV04}, nv04_vmm_new, true }, }; int nv04_mmu_new(struct nvkm_device *device, int index, struct nvkm_mmu **pmmu) { - return nv04_mmu_new_(&nv04_mmu, device, index, pmmu); + return nvkm_mmu_new_(&nv04_mmu, device, index, pmmu); } diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv04.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv04.h deleted file mode 100644 index 363e33b296d5..000000000000 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv04.h +++ /dev/null @@ -1,18 +0,0 @@ -#ifndef __NV04_MMU_PRIV__ -#define __NV04_MMU_PRIV__ -#define nv04_mmu(p) container_of((p), struct nv04_mmu, base) -#include "priv.h" - -struct nv04_mmu { - struct nvkm_mmu base; - struct nvkm_vm *vm; - dma_addr_t null; - void *nullp; -}; - -int nv04_mmu_new_(const struct nvkm_mmu_func *, struct nvkm_device *, - int index, struct nvkm_mmu **); -void *nv04_mmu_dtor(struct nvkm_mmu *); - -extern const struct nvkm_mmu_func nv04_mmu; -#endif diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv41.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv41.c index c6a26f907009..adca81895c09 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv41.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv41.c @@ -21,113 +21,29 @@ * * Authors: Ben Skeggs */ -#include "nv04.h" +#include "mem.h" +#include "vmm.h" -#include <core/gpuobj.h> #include <core/option.h> -#include <subdev/timer.h> -#define NV41_GART_SIZE (512 * 1024 * 1024) -#define NV41_GART_PAGE ( 4 * 1024) - -/******************************************************************************* - * VM map/unmap callbacks - ******************************************************************************/ - -static void -nv41_vm_map_sg(struct nvkm_vma *vma, struct nvkm_memory *pgt, - struct nvkm_mem *mem, u32 pte, u32 cnt, dma_addr_t *list) -{ - pte = pte * 4; - nvkm_kmap(pgt); - while (cnt) { - u32 page = PAGE_SIZE / NV41_GART_PAGE; - u64 phys = (u64)*list++; - while (cnt && page--) { - nvkm_wo32(pgt, pte, (phys >> 7) | 1); - phys += NV41_GART_PAGE; - pte += 4; - cnt -= 1; - } - } - nvkm_done(pgt); -} - -static void -nv41_vm_unmap(struct nvkm_vma *vma, struct nvkm_memory *pgt, u32 pte, u32 cnt) -{ - pte = pte * 4; - nvkm_kmap(pgt); - while (cnt--) { - nvkm_wo32(pgt, pte, 0x00000000); - pte += 4; - } - nvkm_done(pgt); -} - -static void -nv41_vm_flush(struct nvkm_vm *vm) -{ - struct nv04_mmu *mmu = nv04_mmu(vm->mmu); - struct nvkm_device *device = mmu->base.subdev.device; - - mutex_lock(&mmu->base.subdev.mutex); - nvkm_wr32(device, 0x100810, 0x00000022); - nvkm_msec(device, 2000, - if (nvkm_rd32(device, 0x100810) & 0x00000020) - break; - ); - nvkm_wr32(device, 0x100810, 0x00000000); - mutex_unlock(&mmu->base.subdev.mutex); -} - -/******************************************************************************* - * MMU subdev - ******************************************************************************/ - -static int -nv41_mmu_oneinit(struct nvkm_mmu *base) -{ - struct nv04_mmu *mmu = nv04_mmu(base); - struct nvkm_device *device = mmu->base.subdev.device; - int ret; - - ret = nvkm_vm_create(&mmu->base, 0, NV41_GART_SIZE, 0, 4096, NULL, - &mmu->vm); - if (ret) - return ret; - - ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, - (NV41_GART_SIZE / NV41_GART_PAGE) * 4, 16, true, - &mmu->vm->pgt[0].mem[0]); - mmu->vm->pgt[0].refcount[0] = 1; - return ret; -} +#include <nvif/class.h> static void -nv41_mmu_init(struct nvkm_mmu *base) +nv41_mmu_init(struct nvkm_mmu *mmu) { - struct nv04_mmu *mmu = nv04_mmu(base); - struct nvkm_device *device = mmu->base.subdev.device; - struct nvkm_memory *dma = mmu->vm->pgt[0].mem[0]; - nvkm_wr32(device, 0x100800, 0x00000002 | nvkm_memory_addr(dma)); + struct nvkm_device *device = mmu->subdev.device; + nvkm_wr32(device, 0x100800, 0x00000002 | mmu->vmm->pd->pt[0]->addr); nvkm_mask(device, 0x10008c, 0x00000100, 0x00000100); nvkm_wr32(device, 0x100820, 0x00000000); } static const struct nvkm_mmu_func nv41_mmu = { - .dtor = nv04_mmu_dtor, - .oneinit = nv41_mmu_oneinit, .init = nv41_mmu_init, - .limit = NV41_GART_SIZE, .dma_bits = 39, - .pgt_bits = 32 - 12, - .spg_shift = 12, - .lpg_shift = 12, - .map_sg = nv41_vm_map_sg, - .unmap = nv41_vm_unmap, - .flush = nv41_vm_flush, + .mmu = {{ -1, -1, NVIF_CLASS_MMU_NV04}}, + .mem = {{ -1, -1, NVIF_CLASS_MEM_NV04}, nv04_mem_new, nv04_mem_map }, + .vmm = {{ -1, -1, NVIF_CLASS_VMM_NV04}, nv41_vmm_new, true }, }; int @@ -137,5 +53,5 @@ nv41_mmu_new(struct nvkm_device *device, int index, struct nvkm_mmu **pmmu) !nvkm_boolopt(device->cfgopt, "NvPCIE", true)) return nv04_mmu_new(device, index, pmmu); - return nv04_mmu_new_(&nv41_mmu, device, index, pmmu); + return nvkm_mmu_new_(&nv41_mmu, device, index, pmmu); } diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv44.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv44.c index a648c2395545..598c53a27bde 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv44.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv44.c @@ -21,176 +21,18 @@ * * Authors: Ben Skeggs */ -#include "nv04.h" +#include "mem.h" +#include "vmm.h" -#include <core/gpuobj.h> #include <core/option.h> -#include <subdev/timer.h> -#define NV44_GART_SIZE (512 * 1024 * 1024) -#define NV44_GART_PAGE ( 4 * 1024) - -/******************************************************************************* - * VM map/unmap callbacks - ******************************************************************************/ - -static void -nv44_vm_fill(struct nvkm_memory *pgt, dma_addr_t null, - dma_addr_t *list, u32 pte, u32 cnt) -{ - u32 base = (pte << 2) & ~0x0000000f; - u32 tmp[4]; - - tmp[0] = nvkm_ro32(pgt, base + 0x0); - tmp[1] = nvkm_ro32(pgt, base + 0x4); - tmp[2] = nvkm_ro32(pgt, base + 0x8); - tmp[3] = nvkm_ro32(pgt, base + 0xc); - - while (cnt--) { - u32 addr = list ? (*list++ >> 12) : (null >> 12); - switch (pte++ & 0x3) { - case 0: - tmp[0] &= ~0x07ffffff; - tmp[0] |= addr; - break; - case 1: - tmp[0] &= ~0xf8000000; - tmp[0] |= addr << 27; - tmp[1] &= ~0x003fffff; - tmp[1] |= addr >> 5; - break; - case 2: - tmp[1] &= ~0xffc00000; - tmp[1] |= addr << 22; - tmp[2] &= ~0x0001ffff; - tmp[2] |= addr >> 10; - break; - case 3: - tmp[2] &= ~0xfffe0000; - tmp[2] |= addr << 17; - tmp[3] &= ~0x00000fff; - tmp[3] |= addr >> 15; - break; - } - } - - nvkm_wo32(pgt, base + 0x0, tmp[0]); - nvkm_wo32(pgt, base + 0x4, tmp[1]); - nvkm_wo32(pgt, base + 0x8, tmp[2]); - nvkm_wo32(pgt, base + 0xc, tmp[3] | 0x40000000); -} - -static void -nv44_vm_map_sg(struct nvkm_vma *vma, struct nvkm_memory *pgt, - struct nvkm_mem *mem, u32 pte, u32 cnt, dma_addr_t *list) -{ - struct nv04_mmu *mmu = nv04_mmu(vma->vm->mmu); - u32 tmp[4]; - int i; - - nvkm_kmap(pgt); - if (pte & 3) { - u32 max = 4 - (pte & 3); - u32 part = (cnt > max) ? max : cnt; - nv44_vm_fill(pgt, mmu->null, list, pte, part); - pte += part; - list += part; - cnt -= part; - } - - while (cnt >= 4) { - for (i = 0; i < 4; i++) - tmp[i] = *list++ >> 12; - nvkm_wo32(pgt, pte++ * 4, tmp[0] >> 0 | tmp[1] << 27); - nvkm_wo32(pgt, pte++ * 4, tmp[1] >> 5 | tmp[2] << 22); - nvkm_wo32(pgt, pte++ * 4, tmp[2] >> 10 | tmp[3] << 17); - nvkm_wo32(pgt, pte++ * 4, tmp[3] >> 15 | 0x40000000); - cnt -= 4; - } - - if (cnt) - nv44_vm_fill(pgt, mmu->null, list, pte, cnt); - nvkm_done(pgt); -} - -static void -nv44_vm_unmap(struct nvkm_vma *vma, struct nvkm_memory *pgt, u32 pte, u32 cnt) -{ - struct nv04_mmu *mmu = nv04_mmu(vma->vm->mmu); - - nvkm_kmap(pgt); - if (pte & 3) { - u32 max = 4 - (pte & 3); - u32 part = (cnt > max) ? max : cnt; - nv44_vm_fill(pgt, mmu->null, NULL, pte, part); - pte += part; - cnt -= part; - } - - while (cnt >= 4) { - nvkm_wo32(pgt, pte++ * 4, 0x00000000); - nvkm_wo32(pgt, pte++ * 4, 0x00000000); - nvkm_wo32(pgt, pte++ * 4, 0x00000000); - nvkm_wo32(pgt, pte++ * 4, 0x00000000); - cnt -= 4; - } - - if (cnt) - nv44_vm_fill(pgt, mmu->null, NULL, pte, cnt); - nvkm_done(pgt); -} - -static void -nv44_vm_flush(struct nvkm_vm *vm) -{ - struct nv04_mmu *mmu = nv04_mmu(vm->mmu); - struct nvkm_device *device = mmu->base.subdev.device; - nvkm_wr32(device, 0x100814, mmu->base.limit - NV44_GART_PAGE); - nvkm_wr32(device, 0x100808, 0x00000020); - nvkm_msec(device, 2000, - if (nvkm_rd32(device, 0x100808) & 0x00000001) - break; - ); - nvkm_wr32(device, 0x100808, 0x00000000); -} - -/******************************************************************************* - * MMU subdev - ******************************************************************************/ - -static int -nv44_mmu_oneinit(struct nvkm_mmu *base) -{ - struct nv04_mmu *mmu = nv04_mmu(base); - struct nvkm_device *device = mmu->base.subdev.device; - int ret; - - mmu->nullp = dma_alloc_coherent(device->dev, 16 * 1024, - &mmu->null, GFP_KERNEL); - if (!mmu->nullp) { - nvkm_warn(&mmu->base.subdev, "unable to allocate dummy pages\n"); - mmu->null = 0; - } - - ret = nvkm_vm_create(&mmu->base, 0, NV44_GART_SIZE, 0, 4096, NULL, - &mmu->vm); - if (ret) - return ret; - - ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, - (NV44_GART_SIZE / NV44_GART_PAGE) * 4, - 512 * 1024, true, - &mmu->vm->pgt[0].mem[0]); - mmu->vm->pgt[0].refcount[0] = 1; - return ret; -} +#include <nvif/class.h> static void -nv44_mmu_init(struct nvkm_mmu *base) +nv44_mmu_init(struct nvkm_mmu *mmu) { - struct nv04_mmu *mmu = nv04_mmu(base); - struct nvkm_device *device = mmu->base.subdev.device; - struct nvkm_memory *gart = mmu->vm->pgt[0].mem[0]; + struct nvkm_device *device = mmu->subdev.device; + struct nvkm_memory *pt = mmu->vmm->pd->pt[0]->memory; u32 addr; /* calculate vram address of this PRAMIN block, object must be @@ -198,11 +40,11 @@ nv44_mmu_init(struct nvkm_mmu *base) * of 512KiB for this to work correctly */ addr = nvkm_rd32(device, 0x10020c); - addr -= ((nvkm_memory_addr(gart) >> 19) + 1) << 19; + addr -= ((nvkm_memory_addr(pt) >> 19) + 1) << 19; nvkm_wr32(device, 0x100850, 0x80000000); - nvkm_wr32(device, 0x100818, mmu->null); - nvkm_wr32(device, 0x100804, NV44_GART_SIZE); + nvkm_wr32(device, 0x100818, mmu->vmm->null); + nvkm_wr32(device, 0x100804, (nvkm_memory_size(pt) / 4) * 4096); nvkm_wr32(device, 0x100850, 0x00008000); nvkm_mask(device, 0x10008c, 0x00000200, 0x00000200); nvkm_wr32(device, 0x100820, 0x00000000); @@ -212,17 +54,11 @@ nv44_mmu_init(struct nvkm_mmu *base) static const struct nvkm_mmu_func nv44_mmu = { - .dtor = nv04_mmu_dtor, - .oneinit = nv44_mmu_oneinit, .init = nv44_mmu_init, - .limit = NV44_GART_SIZE, .dma_bits = 39, - .pgt_bits = 32 - 12, - .spg_shift = 12, - .lpg_shift = 12, - .map_sg = nv44_vm_map_sg, - .unmap = nv44_vm_unmap, - .flush = nv44_vm_flush, + .mmu = {{ -1, -1, NVIF_CLASS_MMU_NV04}}, + .mem = {{ -1, -1, NVIF_CLASS_MEM_NV04}, nv04_mem_new, nv04_mem_map }, + .vmm = {{ -1, -1, NVIF_CLASS_VMM_NV04}, nv44_vmm_new, true }, }; int @@ -232,5 +68,5 @@ nv44_mmu_new(struct nvkm_device *device, int index, struct nvkm_mmu **pmmu) !nvkm_boolopt(device->cfgopt, "NvPCIE", true)) return nv04_mmu_new(device, index, pmmu); - return nv04_mmu_new_(&nv44_mmu, device, index, pmmu); + return nvkm_mmu_new_(&nv44_mmu, device, index, pmmu); } diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c index a1f8d65f0276..db3dfbbb2aa0 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c @@ -21,207 +21,52 @@ * * Authors: Ben Skeggs */ -#include "priv.h" +#include "mem.h" +#include "vmm.h" -#include <core/gpuobj.h> -#include <subdev/fb.h> -#include <subdev/timer.h> -#include <engine/gr.h> +#include <nvif/class.h> -static void -nv50_vm_map_pgt(struct nvkm_gpuobj *pgd, u32 pde, struct nvkm_memory *pgt[2]) +const u8 * +nv50_mmu_kind(struct nvkm_mmu *base, int *count) { - u64 phys = 0xdeadcafe00000000ULL; - u32 coverage = 0; - - if (pgt[0]) { - /* present, 4KiB pages */ - phys = 0x00000003 | nvkm_memory_addr(pgt[0]); - coverage = (nvkm_memory_size(pgt[0]) >> 3) << 12; - } else - if (pgt[1]) { - /* present, 64KiB pages */ - phys = 0x00000001 | nvkm_memory_addr(pgt[1]); - coverage = (nvkm_memory_size(pgt[1]) >> 3) << 16; - } - - if (phys & 1) { - if (coverage <= 32 * 1024 * 1024) - phys |= 0x60; - else if (coverage <= 64 * 1024 * 1024) - phys |= 0x40; - else if (coverage <= 128 * 1024 * 1024) - phys |= 0x20; - } - - nvkm_kmap(pgd); - nvkm_wo32(pgd, (pde * 8) + 0, lower_32_bits(phys)); - nvkm_wo32(pgd, (pde * 8) + 4, upper_32_bits(phys)); - nvkm_done(pgd); -} - -static inline u64 -vm_addr(struct nvkm_vma *vma, u64 phys, u32 memtype, u32 target) -{ - phys |= 1; /* present */ - phys |= (u64)memtype << 40; - phys |= target << 4; - if (vma->access & NV_MEM_ACCESS_SYS) - phys |= (1 << 6); - if (!(vma->access & NV_MEM_ACCESS_WO)) - phys |= (1 << 3); - return phys; -} - -static void -nv50_vm_map(struct nvkm_vma *vma, struct nvkm_memory *pgt, - struct nvkm_mem *mem, u32 pte, u32 cnt, u64 phys, u64 delta) -{ - struct nvkm_ram *ram = vma->vm->mmu->subdev.device->fb->ram; - u32 comp = (mem->memtype & 0x180) >> 7; - u32 block, target; - int i; - - /* IGPs don't have real VRAM, re-target to stolen system memory */ - target = 0; - if (ram->stolen) { - phys += ram->stolen; - target = 3; - } - - phys = vm_addr(vma, phys, mem->memtype, target); - pte <<= 3; - cnt <<= 3; - - nvkm_kmap(pgt); - while (cnt) { - u32 offset_h = upper_32_bits(phys); - u32 offset_l = lower_32_bits(phys); - - for (i = 7; i >= 0; i--) { - block = 1 << (i + 3); - if (cnt >= block && !(pte & (block - 1))) - break; - } - offset_l |= (i << 7); - - phys += block << (vma->node->type - 3); - cnt -= block; - if (comp) { - u32 tag = mem->tag->offset + ((delta >> 16) * comp); - offset_h |= (tag << 17); - delta += block << (vma->node->type - 3); - } - - while (block) { - nvkm_wo32(pgt, pte + 0, offset_l); - nvkm_wo32(pgt, pte + 4, offset_h); - pte += 8; - block -= 8; - } - } - nvkm_done(pgt); -} - -static void -nv50_vm_map_sg(struct nvkm_vma *vma, struct nvkm_memory *pgt, - struct nvkm_mem *mem, u32 pte, u32 cnt, dma_addr_t *list) -{ - u32 target = (vma->access & NV_MEM_ACCESS_NOSNOOP) ? 3 : 2; - pte <<= 3; - nvkm_kmap(pgt); - while (cnt--) { - u64 phys = vm_addr(vma, (u64)*list++, mem->memtype, target); - nvkm_wo32(pgt, pte + 0, lower_32_bits(phys)); - nvkm_wo32(pgt, pte + 4, upper_32_bits(phys)); - pte += 8; - } - nvkm_done(pgt); -} - -static void -nv50_vm_unmap(struct nvkm_vma *vma, struct nvkm_memory *pgt, u32 pte, u32 cnt) -{ - pte <<= 3; - nvkm_kmap(pgt); - while (cnt--) { - nvkm_wo32(pgt, pte + 0, 0x00000000); - nvkm_wo32(pgt, pte + 4, 0x00000000); - pte += 8; - } - nvkm_done(pgt); -} - -static void -nv50_vm_flush(struct nvkm_vm *vm) -{ - struct nvkm_mmu *mmu = vm->mmu; - struct nvkm_subdev *subdev = &mmu->subdev; - struct nvkm_device *device = subdev->device; - int i, vme; - - mutex_lock(&subdev->mutex); - for (i = 0; i < NVKM_SUBDEV_NR; i++) { - if (!atomic_read(&vm->engref[i])) - continue; - - /* unfortunate hw bug workaround... */ - if (i == NVKM_ENGINE_GR && device->gr) { - int ret = nvkm_gr_tlb_flush(device->gr); - if (ret != -ENODEV) - continue; - } - - switch (i) { - case NVKM_ENGINE_GR : vme = 0x00; break; - case NVKM_ENGINE_VP : - case NVKM_ENGINE_MSPDEC: vme = 0x01; break; - case NVKM_SUBDEV_BAR : vme = 0x06; break; - case NVKM_ENGINE_MSPPP : - case NVKM_ENGINE_MPEG : vme = 0x08; break; - case NVKM_ENGINE_BSP : - case NVKM_ENGINE_MSVLD : vme = 0x09; break; - case NVKM_ENGINE_CIPHER: - case NVKM_ENGINE_SEC : vme = 0x0a; break; - case NVKM_ENGINE_CE0 : vme = 0x0d; break; - default: - continue; - } - - nvkm_wr32(device, 0x100c80, (vme << 16) | 1); - if (nvkm_msec(device, 2000, - if (!(nvkm_rd32(device, 0x100c80) & 0x00000001)) - break; - ) < 0) - nvkm_error(subdev, "vm flush timeout: engine %d\n", vme); - } - mutex_unlock(&subdev->mutex); -} - -static int -nv50_vm_create(struct nvkm_mmu *mmu, u64 offset, u64 length, u64 mm_offset, - struct lock_class_key *key, struct nvkm_vm **pvm) -{ - u32 block = (1 << (mmu->func->pgt_bits + 12)); - if (block > length) - block = length; - - return nvkm_vm_create(mmu, offset, length, mm_offset, block, key, pvm); + /* 0x01: no bank swizzle + * 0x02: bank swizzled + * 0x7f: invalid + * + * 0x01/0x02 are values understood by the VRAM allocator, + * and are required to avoid mixing the two types within + * a certain range. + */ + static const u8 + kind[128] = { + 0x01, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, /* 0x00 */ + 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, + 0x01, 0x01, 0x01, 0x01, 0x7f, 0x7f, 0x7f, 0x7f, /* 0x10 */ + 0x02, 0x02, 0x02, 0x02, 0x7f, 0x7f, 0x7f, 0x7f, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x7f, /* 0x20 */ + 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x7f, + 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, /* 0x30 */ + 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, /* 0x40 */ + 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x7f, 0x7f, + 0x7f, 0x7f, 0x7f, 0x7f, 0x01, 0x01, 0x01, 0x7f, /* 0x50 */ + 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x7f, /* 0x60 */ + 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, + 0x01, 0x7f, 0x02, 0x7f, 0x01, 0x7f, 0x02, 0x7f, /* 0x70 */ + 0x01, 0x01, 0x02, 0x02, 0x01, 0x01, 0x7f, 0x7f + }; + *count = ARRAY_SIZE(kind); + return kind; } static const struct nvkm_mmu_func nv50_mmu = { - .limit = (1ULL << 40), .dma_bits = 40, - .pgt_bits = 29 - 12, - .spg_shift = 12, - .lpg_shift = 16, - .create = nv50_vm_create, - .map_pgt = nv50_vm_map_pgt, - .map = nv50_vm_map, - .map_sg = nv50_vm_map_sg, - .unmap = nv50_vm_unmap, - .flush = nv50_vm_flush, + .mmu = {{ -1, -1, NVIF_CLASS_MMU_NV50}}, + .mem = {{ -1, 0, NVIF_CLASS_MEM_NV50}, nv50_mem_new, nv50_mem_map }, + .vmm = {{ -1, -1, NVIF_CLASS_VMM_NV50}, nv50_vmm_new, false, 0x1400 }, + .kind = nv50_mmu_kind, }; int diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/priv.h index 27cedc60b507..d024d8055fcb 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/priv.h +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/priv.h @@ -9,31 +9,57 @@ int nvkm_mmu_new_(const struct nvkm_mmu_func *, struct nvkm_device *, int index, struct nvkm_mmu **); struct nvkm_mmu_func { - void *(*dtor)(struct nvkm_mmu *); - int (*oneinit)(struct nvkm_mmu *); void (*init)(struct nvkm_mmu *); - u64 limit; u8 dma_bits; - u32 pgt_bits; - u8 spg_shift; - u8 lpg_shift; - - int (*create)(struct nvkm_mmu *, u64 offset, u64 length, u64 mm_offset, - struct lock_class_key *, struct nvkm_vm **); - - void (*map_pgt)(struct nvkm_gpuobj *pgd, u32 pde, - struct nvkm_memory *pgt[2]); - void (*map)(struct nvkm_vma *, struct nvkm_memory *, - struct nvkm_mem *, u32 pte, u32 cnt, - u64 phys, u64 delta); - void (*map_sg)(struct nvkm_vma *, struct nvkm_memory *, - struct nvkm_mem *, u32 pte, u32 cnt, dma_addr_t *); - void (*unmap)(struct nvkm_vma *, struct nvkm_memory *pgt, - u32 pte, u32 cnt); - void (*flush)(struct nvkm_vm *); + + struct { + struct nvkm_sclass user; + } mmu; + + struct { + struct nvkm_sclass user; + int (*vram)(struct nvkm_mmu *, int type, u8 page, u64 size, + void *argv, u32 argc, struct nvkm_memory **); + int (*umap)(struct nvkm_mmu *, struct nvkm_memory *, void *argv, + u32 argc, u64 *addr, u64 *size, struct nvkm_vma **); + } mem; + + struct { + struct nvkm_sclass user; + int (*ctor)(struct nvkm_mmu *, u64 addr, u64 size, + void *argv, u32 argc, struct lock_class_key *, + const char *name, struct nvkm_vmm **); + bool global; + u32 pd_offset; + } vmm; + + const u8 *(*kind)(struct nvkm_mmu *, int *count); + bool kind_sys; +}; + +extern const struct nvkm_mmu_func nv04_mmu; + +const u8 *nv50_mmu_kind(struct nvkm_mmu *, int *count); + +const u8 *gf100_mmu_kind(struct nvkm_mmu *, int *count); + +const u8 *gm200_mmu_kind(struct nvkm_mmu *, int *); + +struct nvkm_mmu_pt { + union { + struct nvkm_mmu_ptc *ptc; + struct nvkm_mmu_ptp *ptp; + }; + struct nvkm_memory *memory; + bool sub; + u16 base; + u64 addr; + struct list_head head; }; -int nvkm_vm_create(struct nvkm_mmu *, u64, u64, u64, u32, - struct lock_class_key *, struct nvkm_vm **); +void nvkm_mmu_ptc_dump(struct nvkm_mmu *); +struct nvkm_mmu_pt * +nvkm_mmu_ptc_get(struct nvkm_mmu *, u32 size, u32 align, bool zero); +void nvkm_mmu_ptc_put(struct nvkm_mmu *, bool force, struct nvkm_mmu_pt **); #endif diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/umem.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/umem.c new file mode 100644 index 000000000000..fac2f9a45ea6 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/umem.c @@ -0,0 +1,192 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "umem.h" +#include "ummu.h" + +#include <core/client.h> +#include <core/memory.h> +#include <subdev/bar.h> + +#include <nvif/class.h> +#include <nvif/if000a.h> +#include <nvif/unpack.h> + +static const struct nvkm_object_func nvkm_umem; +struct nvkm_memory * +nvkm_umem_search(struct nvkm_client *client, u64 handle) +{ + struct nvkm_client *master = client->object.client; + struct nvkm_memory *memory = NULL; + struct nvkm_object *object; + struct nvkm_umem *umem; + + object = nvkm_object_search(client, handle, &nvkm_umem); + if (IS_ERR(object)) { + if (client->super && client != master) { + spin_lock(&master->lock); + list_for_each_entry(umem, &master->umem, head) { + if (umem->object.object == handle) { + memory = nvkm_memory_ref(umem->memory); + break; + } + } + spin_unlock(&master->lock); + } + } else { + umem = nvkm_umem(object); + if (!umem->priv || client->super) + memory = nvkm_memory_ref(umem->memory); + } + + return memory ? memory : ERR_PTR(-ENOENT); +} + +static int +nvkm_umem_unmap(struct nvkm_object *object) +{ + struct nvkm_umem *umem = nvkm_umem(object); + + if (!umem->map) + return -EEXIST; + + if (umem->io) { + if (!IS_ERR(umem->bar)) { + struct nvkm_device *device = umem->mmu->subdev.device; + nvkm_vmm_put(nvkm_bar_bar1_vmm(device), &umem->bar); + } else { + umem->bar = NULL; + } + } else { + vunmap(umem->map); + umem->map = NULL; + } + + return 0; +} + +static int +nvkm_umem_map(struct nvkm_object *object, void *argv, u32 argc, + enum nvkm_object_map *type, u64 *handle, u64 *length) +{ + struct nvkm_umem *umem = nvkm_umem(object); + struct nvkm_mmu *mmu = umem->mmu; + + if (!umem->mappable) + return -EINVAL; + if (umem->map) + return -EEXIST; + + if ((umem->type & NVKM_MEM_HOST) && !argc) { + int ret = nvkm_mem_map_host(umem->memory, &umem->map); + if (ret) + return ret; + + *handle = (unsigned long)(void *)umem->map; + *length = nvkm_memory_size(umem->memory); + *type = NVKM_OBJECT_MAP_VA; + return 0; + } else + if ((umem->type & NVKM_MEM_VRAM) || + (umem->type & NVKM_MEM_KIND)) { + int ret = mmu->func->mem.umap(mmu, umem->memory, argv, argc, + handle, length, &umem->bar); + if (ret) + return ret; + + *type = NVKM_OBJECT_MAP_IO; + } else { + return -EINVAL; + } + + umem->io = (*type == NVKM_OBJECT_MAP_IO); + return 0; +} + +static void * +nvkm_umem_dtor(struct nvkm_object *object) +{ + struct nvkm_umem *umem = nvkm_umem(object); + spin_lock(&umem->object.client->lock); + list_del_init(&umem->head); + spin_unlock(&umem->object.client->lock); + nvkm_memory_unref(&umem->memory); + return umem; +} + +static const struct nvkm_object_func +nvkm_umem = { + .dtor = nvkm_umem_dtor, + .map = nvkm_umem_map, + .unmap = nvkm_umem_unmap, +}; + +int +nvkm_umem_new(const struct nvkm_oclass *oclass, void *argv, u32 argc, + struct nvkm_object **pobject) +{ + struct nvkm_mmu *mmu = nvkm_ummu(oclass->parent)->mmu; + union { + struct nvif_mem_v0 v0; + } *args = argv; + struct nvkm_umem *umem; + int type, ret = -ENOSYS; + u8 page; + u64 size; + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, true))) { + type = args->v0.type; + page = args->v0.page; + size = args->v0.size; + } else + return ret; + + if (type >= mmu->type_nr) + return -EINVAL; + + if (!(umem = kzalloc(sizeof(*umem), GFP_KERNEL))) + return -ENOMEM; + nvkm_object_ctor(&nvkm_umem, oclass, &umem->object); + umem->mmu = mmu; + umem->type = mmu->type[type].type; + umem->priv = oclass->client->super; + INIT_LIST_HEAD(&umem->head); + *pobject = &umem->object; + + if (mmu->type[type].type & NVKM_MEM_MAPPABLE) { + page = max_t(u8, page, PAGE_SHIFT); + umem->mappable = true; + } + + ret = nvkm_mem_new_type(mmu, type, page, size, argv, argc, + &umem->memory); + if (ret) + return ret; + + spin_lock(&umem->object.client->lock); + list_add(&umem->head, &umem->object.client->umem); + spin_unlock(&umem->object.client->lock); + + args->v0.page = nvkm_memory_page(umem->memory); + args->v0.addr = nvkm_memory_addr(umem->memory); + args->v0.size = nvkm_memory_size(umem->memory); + return 0; +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/umem.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/umem.h new file mode 100644 index 000000000000..85cf692d620a --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/umem.h @@ -0,0 +1,26 @@ +#ifndef __NVKM_UMEM_H__ +#define __NVKM_UMEM_H__ +#define nvkm_umem(p) container_of((p), struct nvkm_umem, object) +#include <core/object.h> +#include "mem.h" + +struct nvkm_umem { + struct nvkm_object object; + struct nvkm_mmu *mmu; + u8 type:8; + bool priv:1; + bool mappable:1; + bool io:1; + + struct nvkm_memory *memory; + struct list_head head; + + union { + struct nvkm_vma *bar; + void *map; + }; +}; + +int nvkm_umem_new(const struct nvkm_oclass *, void *argv, u32 argc, + struct nvkm_object **); +#endif diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/ummu.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/ummu.c new file mode 100644 index 000000000000..353f10f92b77 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/ummu.c @@ -0,0 +1,178 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "ummu.h" +#include "umem.h" +#include "uvmm.h" + +#include <core/client.h> + +#include <nvif/if0008.h> +#include <nvif/unpack.h> + +static int +nvkm_ummu_sclass(struct nvkm_object *object, int index, + struct nvkm_oclass *oclass) +{ + struct nvkm_mmu *mmu = nvkm_ummu(object)->mmu; + + if (mmu->func->mem.user.oclass && oclass->client->super) { + if (index-- == 0) { + oclass->base = mmu->func->mem.user; + oclass->ctor = nvkm_umem_new; + return 0; + } + } + + if (mmu->func->vmm.user.oclass) { + if (index-- == 0) { + oclass->base = mmu->func->vmm.user; + oclass->ctor = nvkm_uvmm_new; + return 0; + } + } + + return -EINVAL; +} + +static int +nvkm_ummu_heap(struct nvkm_ummu *ummu, void *argv, u32 argc) +{ + struct nvkm_mmu *mmu = ummu->mmu; + union { + struct nvif_mmu_heap_v0 v0; + } *args = argv; + int ret = -ENOSYS; + u8 index; + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { + if ((index = args->v0.index) >= mmu->heap_nr) + return -EINVAL; + args->v0.size = mmu->heap[index].size; + } else + return ret; + + return 0; +} + +static int +nvkm_ummu_type(struct nvkm_ummu *ummu, void *argv, u32 argc) +{ + struct nvkm_mmu *mmu = ummu->mmu; + union { + struct nvif_mmu_type_v0 v0; + } *args = argv; + int ret = -ENOSYS; + u8 type, index; + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { + if ((index = args->v0.index) >= mmu->type_nr) + return -EINVAL; + type = mmu->type[index].type; + args->v0.heap = mmu->type[index].heap; + args->v0.vram = !!(type & NVKM_MEM_VRAM); + args->v0.host = !!(type & NVKM_MEM_HOST); + args->v0.comp = !!(type & NVKM_MEM_COMP); + args->v0.disp = !!(type & NVKM_MEM_DISP); + args->v0.kind = !!(type & NVKM_MEM_KIND); + args->v0.mappable = !!(type & NVKM_MEM_MAPPABLE); + args->v0.coherent = !!(type & NVKM_MEM_COHERENT); + args->v0.uncached = !!(type & NVKM_MEM_UNCACHED); + } else + return ret; + + return 0; +} + +static int +nvkm_ummu_kind(struct nvkm_ummu *ummu, void *argv, u32 argc) +{ + struct nvkm_mmu *mmu = ummu->mmu; + union { + struct nvif_mmu_kind_v0 v0; + } *args = argv; + const u8 *kind = NULL; + int ret = -ENOSYS, count = 0; + + if (mmu->func->kind) + kind = mmu->func->kind(mmu, &count); + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, true))) { + if (argc != args->v0.count * sizeof(*args->v0.data)) + return -EINVAL; + if (args->v0.count > count) + return -EINVAL; + memcpy(args->v0.data, kind, args->v0.count); + } else + return ret; + + return 0; +} + +static int +nvkm_ummu_mthd(struct nvkm_object *object, u32 mthd, void *argv, u32 argc) +{ + struct nvkm_ummu *ummu = nvkm_ummu(object); + switch (mthd) { + case NVIF_MMU_V0_HEAP: return nvkm_ummu_heap(ummu, argv, argc); + case NVIF_MMU_V0_TYPE: return nvkm_ummu_type(ummu, argv, argc); + case NVIF_MMU_V0_KIND: return nvkm_ummu_kind(ummu, argv, argc); + default: + break; + } + return -EINVAL; +} + +static const struct nvkm_object_func +nvkm_ummu = { + .mthd = nvkm_ummu_mthd, + .sclass = nvkm_ummu_sclass, +}; + +int +nvkm_ummu_new(struct nvkm_device *device, const struct nvkm_oclass *oclass, + void *argv, u32 argc, struct nvkm_object **pobject) +{ + union { + struct nvif_mmu_v0 v0; + } *args = argv; + struct nvkm_mmu *mmu = device->mmu; + struct nvkm_ummu *ummu; + int ret = -ENOSYS, kinds = 0; + + if (mmu->func->kind) + mmu->func->kind(mmu, &kinds); + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { + args->v0.dmabits = mmu->dma_bits; + args->v0.heap_nr = mmu->heap_nr; + args->v0.type_nr = mmu->type_nr; + args->v0.kind_nr = kinds; + } else + return ret; + + if (!(ummu = kzalloc(sizeof(*ummu), GFP_KERNEL))) + return -ENOMEM; + nvkm_object_ctor(&nvkm_ummu, oclass, &ummu->object); + ummu->mmu = mmu; + *pobject = &ummu->object; + return 0; +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/ummu.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/ummu.h new file mode 100644 index 000000000000..0cd510dcfc68 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/ummu.h @@ -0,0 +1,14 @@ +#ifndef __NVKM_UMMU_H__ +#define __NVKM_UMMU_H__ +#define nvkm_ummu(p) container_of((p), struct nvkm_ummu, object) +#include <core/object.h> +#include "priv.h" + +struct nvkm_ummu { + struct nvkm_object object; + struct nvkm_mmu *mmu; +}; + +int nvkm_ummu_new(struct nvkm_device *, const struct nvkm_oclass *, + void *argv, u32 argc, struct nvkm_object **); +#endif diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/uvmm.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/uvmm.c new file mode 100644 index 000000000000..fa81d0c1ba41 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/uvmm.c @@ -0,0 +1,352 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "uvmm.h" +#include "umem.h" +#include "ummu.h" + +#include <core/client.h> +#include <core/memory.h> + +#include <nvif/if000c.h> +#include <nvif/unpack.h> + +static const struct nvkm_object_func nvkm_uvmm; +struct nvkm_vmm * +nvkm_uvmm_search(struct nvkm_client *client, u64 handle) +{ + struct nvkm_object *object; + + object = nvkm_object_search(client, handle, &nvkm_uvmm); + if (IS_ERR(object)) + return (void *)object; + + return nvkm_uvmm(object)->vmm; +} + +static int +nvkm_uvmm_mthd_unmap(struct nvkm_uvmm *uvmm, void *argv, u32 argc) +{ + struct nvkm_client *client = uvmm->object.client; + union { + struct nvif_vmm_unmap_v0 v0; + } *args = argv; + struct nvkm_vmm *vmm = uvmm->vmm; + struct nvkm_vma *vma; + int ret = -ENOSYS; + u64 addr; + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { + addr = args->v0.addr; + } else + return ret; + + mutex_lock(&vmm->mutex); + vma = nvkm_vmm_node_search(vmm, addr); + if (ret = -ENOENT, !vma || vma->addr != addr) { + VMM_DEBUG(vmm, "lookup %016llx: %016llx", + addr, vma ? vma->addr : ~0ULL); + goto done; + } + + if (ret = -ENOENT, (!vma->user && !client->super) || vma->busy) { + VMM_DEBUG(vmm, "denied %016llx: %d %d %d", addr, + vma->user, !client->super, vma->busy); + goto done; + } + + if (ret = -EINVAL, !vma->memory) { + VMM_DEBUG(vmm, "unmapped"); + goto done; + } + + nvkm_vmm_unmap_locked(vmm, vma); + ret = 0; +done: + mutex_unlock(&vmm->mutex); + return ret; +} + +static int +nvkm_uvmm_mthd_map(struct nvkm_uvmm *uvmm, void *argv, u32 argc) +{ + struct nvkm_client *client = uvmm->object.client; + union { + struct nvif_vmm_map_v0 v0; + } *args = argv; + u64 addr, size, handle, offset; + struct nvkm_vmm *vmm = uvmm->vmm; + struct nvkm_vma *vma; + struct nvkm_memory *memory; + int ret = -ENOSYS; + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, true))) { + addr = args->v0.addr; + size = args->v0.size; + handle = args->v0.memory; + offset = args->v0.offset; + } else + return ret; + + if (IS_ERR((memory = nvkm_umem_search(client, handle)))) { + VMM_DEBUG(vmm, "memory %016llx %ld\n", handle, PTR_ERR(memory)); + return PTR_ERR(memory); + } + + mutex_lock(&vmm->mutex); + if (ret = -ENOENT, !(vma = nvkm_vmm_node_search(vmm, addr))) { + VMM_DEBUG(vmm, "lookup %016llx", addr); + goto fail; + } + + if (ret = -ENOENT, (!vma->user && !client->super) || vma->busy) { + VMM_DEBUG(vmm, "denied %016llx: %d %d %d", addr, + vma->user, !client->super, vma->busy); + goto fail; + } + + if (ret = -EINVAL, vma->addr != addr || vma->size != size) { + if (addr + size > vma->addr + vma->size || vma->memory || + (vma->refd == NVKM_VMA_PAGE_NONE && !vma->mapref)) { + VMM_DEBUG(vmm, "split %d %d %d " + "%016llx %016llx %016llx %016llx", + !!vma->memory, vma->refd, vma->mapref, + addr, size, vma->addr, (u64)vma->size); + goto fail; + } + + if (vma->addr != addr) { + const u64 tail = vma->size + vma->addr - addr; + if (ret = -ENOMEM, !(vma = nvkm_vma_tail(vma, tail))) + goto fail; + vma->part = true; + nvkm_vmm_node_insert(vmm, vma); + } + + if (vma->size != size) { + const u64 tail = vma->size - size; + struct nvkm_vma *tmp; + if (ret = -ENOMEM, !(tmp = nvkm_vma_tail(vma, tail))) { + nvkm_vmm_unmap_region(vmm, vma); + goto fail; + } + tmp->part = true; + nvkm_vmm_node_insert(vmm, tmp); + } + } + vma->busy = true; + mutex_unlock(&vmm->mutex); + + ret = nvkm_memory_map(memory, offset, vmm, vma, argv, argc); + if (ret == 0) { + /* Successful map will clear vma->busy. */ + nvkm_memory_unref(&memory); + return 0; + } + + mutex_lock(&vmm->mutex); + vma->busy = false; + nvkm_vmm_unmap_region(vmm, vma); +fail: + mutex_unlock(&vmm->mutex); + nvkm_memory_unref(&memory); + return ret; +} + +static int +nvkm_uvmm_mthd_put(struct nvkm_uvmm *uvmm, void *argv, u32 argc) +{ + struct nvkm_client *client = uvmm->object.client; + union { + struct nvif_vmm_put_v0 v0; + } *args = argv; + struct nvkm_vmm *vmm = uvmm->vmm; + struct nvkm_vma *vma; + int ret = -ENOSYS; + u64 addr; + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { + addr = args->v0.addr; + } else + return ret; + + mutex_lock(&vmm->mutex); + vma = nvkm_vmm_node_search(vmm, args->v0.addr); + if (ret = -ENOENT, !vma || vma->addr != addr || vma->part) { + VMM_DEBUG(vmm, "lookup %016llx: %016llx %d", addr, + vma ? vma->addr : ~0ULL, vma ? vma->part : 0); + goto done; + } + + if (ret = -ENOENT, (!vma->user && !client->super) || vma->busy) { + VMM_DEBUG(vmm, "denied %016llx: %d %d %d", addr, + vma->user, !client->super, vma->busy); + goto done; + } + + nvkm_vmm_put_locked(vmm, vma); + ret = 0; +done: + mutex_unlock(&vmm->mutex); + return ret; +} + +static int +nvkm_uvmm_mthd_get(struct nvkm_uvmm *uvmm, void *argv, u32 argc) +{ + struct nvkm_client *client = uvmm->object.client; + union { + struct nvif_vmm_get_v0 v0; + } *args = argv; + struct nvkm_vmm *vmm = uvmm->vmm; + struct nvkm_vma *vma; + int ret = -ENOSYS; + bool getref, mapref, sparse; + u8 page, align; + u64 size; + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { + getref = args->v0.type == NVIF_VMM_GET_V0_PTES; + mapref = args->v0.type == NVIF_VMM_GET_V0_ADDR; + sparse = args->v0.sparse; + page = args->v0.page; + align = args->v0.align; + size = args->v0.size; + } else + return ret; + + mutex_lock(&vmm->mutex); + ret = nvkm_vmm_get_locked(vmm, getref, mapref, sparse, + page, align, size, &vma); + mutex_unlock(&vmm->mutex); + if (ret) + return ret; + + args->v0.addr = vma->addr; + vma->user = !client->super; + return ret; +} + +static int +nvkm_uvmm_mthd_page(struct nvkm_uvmm *uvmm, void *argv, u32 argc) +{ + union { + struct nvif_vmm_page_v0 v0; + } *args = argv; + const struct nvkm_vmm_page *page; + int ret = -ENOSYS; + u8 type, index, nr; + + page = uvmm->vmm->func->page; + for (nr = 0; page[nr].shift; nr++); + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { + if ((index = args->v0.index) >= nr) + return -EINVAL; + type = page[index].type; + args->v0.shift = page[index].shift; + args->v0.sparse = !!(type & NVKM_VMM_PAGE_SPARSE); + args->v0.vram = !!(type & NVKM_VMM_PAGE_VRAM); + args->v0.host = !!(type & NVKM_VMM_PAGE_HOST); + args->v0.comp = !!(type & NVKM_VMM_PAGE_COMP); + } else + return -ENOSYS; + + return 0; +} + +static int +nvkm_uvmm_mthd(struct nvkm_object *object, u32 mthd, void *argv, u32 argc) +{ + struct nvkm_uvmm *uvmm = nvkm_uvmm(object); + switch (mthd) { + case NVIF_VMM_V0_PAGE : return nvkm_uvmm_mthd_page (uvmm, argv, argc); + case NVIF_VMM_V0_GET : return nvkm_uvmm_mthd_get (uvmm, argv, argc); + case NVIF_VMM_V0_PUT : return nvkm_uvmm_mthd_put (uvmm, argv, argc); + case NVIF_VMM_V0_MAP : return nvkm_uvmm_mthd_map (uvmm, argv, argc); + case NVIF_VMM_V0_UNMAP : return nvkm_uvmm_mthd_unmap (uvmm, argv, argc); + default: + break; + } + return -EINVAL; +} + +static void * +nvkm_uvmm_dtor(struct nvkm_object *object) +{ + struct nvkm_uvmm *uvmm = nvkm_uvmm(object); + nvkm_vmm_unref(&uvmm->vmm); + return uvmm; +} + +static const struct nvkm_object_func +nvkm_uvmm = { + .dtor = nvkm_uvmm_dtor, + .mthd = nvkm_uvmm_mthd, +}; + +int +nvkm_uvmm_new(const struct nvkm_oclass *oclass, void *argv, u32 argc, + struct nvkm_object **pobject) +{ + struct nvkm_mmu *mmu = nvkm_ummu(oclass->parent)->mmu; + const bool more = oclass->base.maxver >= 0; + union { + struct nvif_vmm_v0 v0; + } *args = argv; + const struct nvkm_vmm_page *page; + struct nvkm_uvmm *uvmm; + int ret = -ENOSYS; + u64 addr, size; + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, more))) { + addr = args->v0.addr; + size = args->v0.size; + } else + return ret; + + if (!(uvmm = kzalloc(sizeof(*uvmm), GFP_KERNEL))) + return -ENOMEM; + nvkm_object_ctor(&nvkm_uvmm, oclass, &uvmm->object); + *pobject = &uvmm->object; + + if (!mmu->vmm) { + ret = mmu->func->vmm.ctor(mmu, addr, size, argv, argc, + NULL, "user", &uvmm->vmm); + if (ret) + return ret; + + uvmm->vmm->debug = max(uvmm->vmm->debug, oclass->client->debug); + } else { + if (size) + return -EINVAL; + + uvmm->vmm = nvkm_vmm_ref(mmu->vmm); + } + + page = uvmm->vmm->func->page; + args->v0.page_nr = 0; + while (page && (page++)->shift) + args->v0.page_nr++; + args->v0.addr = uvmm->vmm->start; + args->v0.size = uvmm->vmm->limit; + return 0; +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/uvmm.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/uvmm.h new file mode 100644 index 000000000000..71dab55e18a9 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/uvmm.h @@ -0,0 +1,14 @@ +#ifndef __NVKM_UVMM_H__ +#define __NVKM_UVMM_H__ +#define nvkm_uvmm(p) container_of((p), struct nvkm_uvmm, object) +#include <core/object.h> +#include "vmm.h" + +struct nvkm_uvmm { + struct nvkm_object object; + struct nvkm_vmm *vmm; +}; + +int nvkm_uvmm_new(const struct nvkm_oclass *, void *argv, u32 argc, + struct nvkm_object **); +#endif diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c new file mode 100644 index 000000000000..e35d3e17cd7c --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c @@ -0,0 +1,1513 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#define NVKM_VMM_LEVELS_MAX 5 +#include "vmm.h" + +#include <subdev/fb.h> + +static void +nvkm_vmm_pt_del(struct nvkm_vmm_pt **ppgt) +{ + struct nvkm_vmm_pt *pgt = *ppgt; + if (pgt) { + kvfree(pgt->pde); + kfree(pgt); + *ppgt = NULL; + } +} + + +static struct nvkm_vmm_pt * +nvkm_vmm_pt_new(const struct nvkm_vmm_desc *desc, bool sparse, + const struct nvkm_vmm_page *page) +{ + const u32 pten = 1 << desc->bits; + struct nvkm_vmm_pt *pgt; + u32 lpte = 0; + + if (desc->type > PGT) { + if (desc->type == SPT) { + const struct nvkm_vmm_desc *pair = page[-1].desc; + lpte = pten >> (desc->bits - pair->bits); + } else { + lpte = pten; + } + } + + if (!(pgt = kzalloc(sizeof(*pgt) + lpte, GFP_KERNEL))) + return NULL; + pgt->page = page ? page->shift : 0; + pgt->sparse = sparse; + + if (desc->type == PGD) { + pgt->pde = kvzalloc(sizeof(*pgt->pde) * pten, GFP_KERNEL); + if (!pgt->pde) { + kfree(pgt); + return NULL; + } + } + + return pgt; +} + +struct nvkm_vmm_iter { + const struct nvkm_vmm_page *page; + const struct nvkm_vmm_desc *desc; + struct nvkm_vmm *vmm; + u64 cnt; + u16 max, lvl; + u32 pte[NVKM_VMM_LEVELS_MAX]; + struct nvkm_vmm_pt *pt[NVKM_VMM_LEVELS_MAX]; + int flush; +}; + +#ifdef CONFIG_NOUVEAU_DEBUG_MMU +static const char * +nvkm_vmm_desc_type(const struct nvkm_vmm_desc *desc) +{ + switch (desc->type) { + case PGD: return "PGD"; + case PGT: return "PGT"; + case SPT: return "SPT"; + case LPT: return "LPT"; + default: + return "UNKNOWN"; + } +} + +static void +nvkm_vmm_trace(struct nvkm_vmm_iter *it, char *buf) +{ + int lvl; + for (lvl = it->max; lvl >= 0; lvl--) { + if (lvl >= it->lvl) + buf += sprintf(buf, "%05x:", it->pte[lvl]); + else + buf += sprintf(buf, "xxxxx:"); + } +} + +#define TRA(i,f,a...) do { \ + char _buf[NVKM_VMM_LEVELS_MAX * 7]; \ + struct nvkm_vmm_iter *_it = (i); \ + nvkm_vmm_trace(_it, _buf); \ + VMM_TRACE(_it->vmm, "%s "f, _buf, ##a); \ +} while(0) +#else +#define TRA(i,f,a...) +#endif + +static inline void +nvkm_vmm_flush_mark(struct nvkm_vmm_iter *it) +{ + it->flush = min(it->flush, it->max - it->lvl); +} + +static inline void +nvkm_vmm_flush(struct nvkm_vmm_iter *it) +{ + if (it->flush != NVKM_VMM_LEVELS_MAX) { + if (it->vmm->func->flush) { + TRA(it, "flush: %d", it->flush); + it->vmm->func->flush(it->vmm, it->flush); + } + it->flush = NVKM_VMM_LEVELS_MAX; + } +} + +static void +nvkm_vmm_unref_pdes(struct nvkm_vmm_iter *it) +{ + const struct nvkm_vmm_desc *desc = it->desc; + const int type = desc[it->lvl].type == SPT; + struct nvkm_vmm_pt *pgd = it->pt[it->lvl + 1]; + struct nvkm_vmm_pt *pgt = it->pt[it->lvl]; + struct nvkm_mmu_pt *pt = pgt->pt[type]; + struct nvkm_vmm *vmm = it->vmm; + u32 pdei = it->pte[it->lvl + 1]; + + /* Recurse up the tree, unreferencing/destroying unneeded PDs. */ + it->lvl++; + if (--pgd->refs[0]) { + const struct nvkm_vmm_desc_func *func = desc[it->lvl].func; + /* PD has other valid PDEs, so we need a proper update. */ + TRA(it, "PDE unmap %s", nvkm_vmm_desc_type(&desc[it->lvl - 1])); + pgt->pt[type] = NULL; + if (!pgt->refs[!type]) { + /* PDE no longer required. */ + if (pgd->pt[0]) { + if (pgt->sparse) { + func->sparse(vmm, pgd->pt[0], pdei, 1); + pgd->pde[pdei] = NVKM_VMM_PDE_SPARSE; + } else { + func->unmap(vmm, pgd->pt[0], pdei, 1); + pgd->pde[pdei] = NULL; + } + } else { + /* Special handling for Tesla-class GPUs, + * where there's no central PD, but each + * instance has its own embedded PD. + */ + func->pde(vmm, pgd, pdei); + pgd->pde[pdei] = NULL; + } + } else { + /* PDE was pointing at dual-PTs and we're removing + * one of them, leaving the other in place. + */ + func->pde(vmm, pgd, pdei); + } + + /* GPU may have cached the PTs, flush before freeing. */ + nvkm_vmm_flush_mark(it); + nvkm_vmm_flush(it); + } else { + /* PD has no valid PDEs left, so we can just destroy it. */ + nvkm_vmm_unref_pdes(it); + } + + /* Destroy PD/PT. */ + TRA(it, "PDE free %s", nvkm_vmm_desc_type(&desc[it->lvl - 1])); + nvkm_mmu_ptc_put(vmm->mmu, vmm->bootstrapped, &pt); + if (!pgt->refs[!type]) + nvkm_vmm_pt_del(&pgt); + it->lvl--; +} + +static void +nvkm_vmm_unref_sptes(struct nvkm_vmm_iter *it, struct nvkm_vmm_pt *pgt, + const struct nvkm_vmm_desc *desc, u32 ptei, u32 ptes) +{ + const struct nvkm_vmm_desc *pair = it->page[-1].desc; + const u32 sptb = desc->bits - pair->bits; + const u32 sptn = 1 << sptb; + struct nvkm_vmm *vmm = it->vmm; + u32 spti = ptei & (sptn - 1), lpti, pteb; + + /* Determine how many SPTEs are being touched under each LPTE, + * and drop reference counts. + */ + for (lpti = ptei >> sptb; ptes; spti = 0, lpti++) { + const u32 pten = min(sptn - spti, ptes); + pgt->pte[lpti] -= pten; + ptes -= pten; + } + + /* We're done here if there's no corresponding LPT. */ + if (!pgt->refs[0]) + return; + + for (ptei = pteb = ptei >> sptb; ptei < lpti; pteb = ptei) { + /* Skip over any LPTEs that still have valid SPTEs. */ + if (pgt->pte[pteb] & NVKM_VMM_PTE_SPTES) { + for (ptes = 1, ptei++; ptei < lpti; ptes++, ptei++) { + if (!(pgt->pte[ptei] & NVKM_VMM_PTE_SPTES)) + break; + } + continue; + } + + /* As there's no more non-UNMAPPED SPTEs left in the range + * covered by a number of LPTEs, the LPTEs once again take + * control over their address range. + * + * Determine how many LPTEs need to transition state. + */ + pgt->pte[ptei] &= ~NVKM_VMM_PTE_VALID; + for (ptes = 1, ptei++; ptei < lpti; ptes++, ptei++) { + if (pgt->pte[ptei] & NVKM_VMM_PTE_SPTES) + break; + pgt->pte[ptei] &= ~NVKM_VMM_PTE_VALID; + } + + if (pgt->pte[pteb] & NVKM_VMM_PTE_SPARSE) { + TRA(it, "LPTE %05x: U -> S %d PTEs", pteb, ptes); + pair->func->sparse(vmm, pgt->pt[0], pteb, ptes); + } else + if (pair->func->invalid) { + /* If the MMU supports it, restore the LPTE to the + * INVALID state to tell the MMU there is no point + * trying to fetch the corresponding SPTEs. + */ + TRA(it, "LPTE %05x: U -> I %d PTEs", pteb, ptes); + pair->func->invalid(vmm, pgt->pt[0], pteb, ptes); + } + } +} + +static bool +nvkm_vmm_unref_ptes(struct nvkm_vmm_iter *it, u32 ptei, u32 ptes) +{ + const struct nvkm_vmm_desc *desc = it->desc; + const int type = desc->type == SPT; + struct nvkm_vmm_pt *pgt = it->pt[0]; + + /* Drop PTE references. */ + pgt->refs[type] -= ptes; + + /* Dual-PTs need special handling, unless PDE becoming invalid. */ + if (desc->type == SPT && (pgt->refs[0] || pgt->refs[1])) + nvkm_vmm_unref_sptes(it, pgt, desc, ptei, ptes); + + /* PT no longer neeed? Destroy it. */ + if (!pgt->refs[type]) { + it->lvl++; + TRA(it, "%s empty", nvkm_vmm_desc_type(desc)); + it->lvl--; + nvkm_vmm_unref_pdes(it); + return false; /* PTE writes for unmap() not necessary. */ + } + + return true; +} + +static void +nvkm_vmm_ref_sptes(struct nvkm_vmm_iter *it, struct nvkm_vmm_pt *pgt, + const struct nvkm_vmm_desc *desc, u32 ptei, u32 ptes) +{ + const struct nvkm_vmm_desc *pair = it->page[-1].desc; + const u32 sptb = desc->bits - pair->bits; + const u32 sptn = 1 << sptb; + struct nvkm_vmm *vmm = it->vmm; + u32 spti = ptei & (sptn - 1), lpti, pteb; + + /* Determine how many SPTEs are being touched under each LPTE, + * and increase reference counts. + */ + for (lpti = ptei >> sptb; ptes; spti = 0, lpti++) { + const u32 pten = min(sptn - spti, ptes); + pgt->pte[lpti] += pten; + ptes -= pten; + } + + /* We're done here if there's no corresponding LPT. */ + if (!pgt->refs[0]) + return; + + for (ptei = pteb = ptei >> sptb; ptei < lpti; pteb = ptei) { + /* Skip over any LPTEs that already have valid SPTEs. */ + if (pgt->pte[pteb] & NVKM_VMM_PTE_VALID) { + for (ptes = 1, ptei++; ptei < lpti; ptes++, ptei++) { + if (!(pgt->pte[ptei] & NVKM_VMM_PTE_VALID)) + break; + } + continue; + } + + /* As there are now non-UNMAPPED SPTEs in the range covered + * by a number of LPTEs, we need to transfer control of the + * address range to the SPTEs. + * + * Determine how many LPTEs need to transition state. + */ + pgt->pte[ptei] |= NVKM_VMM_PTE_VALID; + for (ptes = 1, ptei++; ptei < lpti; ptes++, ptei++) { + if (pgt->pte[ptei] & NVKM_VMM_PTE_VALID) + break; + pgt->pte[ptei] |= NVKM_VMM_PTE_VALID; + } + + if (pgt->pte[pteb] & NVKM_VMM_PTE_SPARSE) { + const u32 spti = pteb * sptn; + const u32 sptc = ptes * sptn; + /* The entire LPTE is marked as sparse, we need + * to make sure that the SPTEs are too. + */ + TRA(it, "SPTE %05x: U -> S %d PTEs", spti, sptc); + desc->func->sparse(vmm, pgt->pt[1], spti, sptc); + /* Sparse LPTEs prevent SPTEs from being accessed. */ + TRA(it, "LPTE %05x: S -> U %d PTEs", pteb, ptes); + pair->func->unmap(vmm, pgt->pt[0], pteb, ptes); + } else + if (pair->func->invalid) { + /* MMU supports blocking SPTEs by marking an LPTE + * as INVALID. We need to reverse that here. + */ + TRA(it, "LPTE %05x: I -> U %d PTEs", pteb, ptes); + pair->func->unmap(vmm, pgt->pt[0], pteb, ptes); + } + } +} + +static bool +nvkm_vmm_ref_ptes(struct nvkm_vmm_iter *it, u32 ptei, u32 ptes) +{ + const struct nvkm_vmm_desc *desc = it->desc; + const int type = desc->type == SPT; + struct nvkm_vmm_pt *pgt = it->pt[0]; + + /* Take PTE references. */ + pgt->refs[type] += ptes; + + /* Dual-PTs need special handling. */ + if (desc->type == SPT) + nvkm_vmm_ref_sptes(it, pgt, desc, ptei, ptes); + + return true; +} + +static void +nvkm_vmm_sparse_ptes(const struct nvkm_vmm_desc *desc, + struct nvkm_vmm_pt *pgt, u32 ptei, u32 ptes) +{ + if (desc->type == PGD) { + while (ptes--) + pgt->pde[ptei++] = NVKM_VMM_PDE_SPARSE; + } else + if (desc->type == LPT) { + memset(&pgt->pte[ptei], NVKM_VMM_PTE_SPARSE, ptes); + } +} + +static bool +nvkm_vmm_sparse_unref_ptes(struct nvkm_vmm_iter *it, u32 ptei, u32 ptes) +{ + struct nvkm_vmm_pt *pt = it->pt[0]; + if (it->desc->type == PGD) + memset(&pt->pde[ptei], 0x00, sizeof(pt->pde[0]) * ptes); + else + if (it->desc->type == LPT) + memset(&pt->pte[ptei], 0x00, sizeof(pt->pte[0]) * ptes); + return nvkm_vmm_unref_ptes(it, ptei, ptes); +} + +static bool +nvkm_vmm_sparse_ref_ptes(struct nvkm_vmm_iter *it, u32 ptei, u32 ptes) +{ + nvkm_vmm_sparse_ptes(it->desc, it->pt[0], ptei, ptes); + return nvkm_vmm_ref_ptes(it, ptei, ptes); +} + +static bool +nvkm_vmm_ref_hwpt(struct nvkm_vmm_iter *it, struct nvkm_vmm_pt *pgd, u32 pdei) +{ + const struct nvkm_vmm_desc *desc = &it->desc[it->lvl - 1]; + const int type = desc->type == SPT; + struct nvkm_vmm_pt *pgt = pgd->pde[pdei]; + const bool zero = !pgt->sparse && !desc->func->invalid; + struct nvkm_vmm *vmm = it->vmm; + struct nvkm_mmu *mmu = vmm->mmu; + struct nvkm_mmu_pt *pt; + u32 pten = 1 << desc->bits; + u32 pteb, ptei, ptes; + u32 size = desc->size * pten; + + pgd->refs[0]++; + + pgt->pt[type] = nvkm_mmu_ptc_get(mmu, size, desc->align, zero); + if (!pgt->pt[type]) { + it->lvl--; + nvkm_vmm_unref_pdes(it); + return false; + } + + if (zero) + goto done; + + pt = pgt->pt[type]; + + if (desc->type == LPT && pgt->refs[1]) { + /* SPT already exists covering the same range as this LPT, + * which means we need to be careful that any LPTEs which + * overlap valid SPTEs are unmapped as opposed to invalid + * or sparse, which would prevent the MMU from looking at + * the SPTEs on some GPUs. + */ + for (ptei = pteb = 0; ptei < pten; pteb = ptei) { + bool spte = pgt->pte[ptei] & NVKM_VMM_PTE_SPTES; + for (ptes = 1, ptei++; ptei < pten; ptes++, ptei++) { + bool next = pgt->pte[ptei] & NVKM_VMM_PTE_SPTES; + if (spte != next) + break; + } + + if (!spte) { + if (pgt->sparse) + desc->func->sparse(vmm, pt, pteb, ptes); + else + desc->func->invalid(vmm, pt, pteb, ptes); + memset(&pgt->pte[pteb], 0x00, ptes); + } else { + desc->func->unmap(vmm, pt, pteb, ptes); + while (ptes--) + pgt->pte[pteb++] |= NVKM_VMM_PTE_VALID; + } + } + } else { + if (pgt->sparse) { + nvkm_vmm_sparse_ptes(desc, pgt, 0, pten); + desc->func->sparse(vmm, pt, 0, pten); + } else { + desc->func->invalid(vmm, pt, 0, pten); + } + } + +done: + TRA(it, "PDE write %s", nvkm_vmm_desc_type(desc)); + it->desc[it->lvl].func->pde(it->vmm, pgd, pdei); + nvkm_vmm_flush_mark(it); + return true; +} + +static bool +nvkm_vmm_ref_swpt(struct nvkm_vmm_iter *it, struct nvkm_vmm_pt *pgd, u32 pdei) +{ + const struct nvkm_vmm_desc *desc = &it->desc[it->lvl - 1]; + struct nvkm_vmm_pt *pgt = pgd->pde[pdei]; + + pgt = nvkm_vmm_pt_new(desc, NVKM_VMM_PDE_SPARSED(pgt), it->page); + if (!pgt) { + if (!pgd->refs[0]) + nvkm_vmm_unref_pdes(it); + return false; + } + + pgd->pde[pdei] = pgt; + return true; +} + +static inline u64 +nvkm_vmm_iter(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page, + u64 addr, u64 size, const char *name, bool ref, + bool (*REF_PTES)(struct nvkm_vmm_iter *, u32, u32), + nvkm_vmm_pte_func MAP_PTES, struct nvkm_vmm_map *map, + nvkm_vmm_pxe_func CLR_PTES) +{ + const struct nvkm_vmm_desc *desc = page->desc; + struct nvkm_vmm_iter it; + u64 bits = addr >> page->shift; + + it.page = page; + it.desc = desc; + it.vmm = vmm; + it.cnt = size >> page->shift; + it.flush = NVKM_VMM_LEVELS_MAX; + + /* Deconstruct address into PTE indices for each mapping level. */ + for (it.lvl = 0; desc[it.lvl].bits; it.lvl++) { + it.pte[it.lvl] = bits & ((1 << desc[it.lvl].bits) - 1); + bits >>= desc[it.lvl].bits; + } + it.max = --it.lvl; + it.pt[it.max] = vmm->pd; + + it.lvl = 0; + TRA(&it, "%s: %016llx %016llx %d %lld PTEs", name, + addr, size, page->shift, it.cnt); + it.lvl = it.max; + + /* Depth-first traversal of page tables. */ + while (it.cnt) { + struct nvkm_vmm_pt *pgt = it.pt[it.lvl]; + const int type = desc->type == SPT; + const u32 pten = 1 << desc->bits; + const u32 ptei = it.pte[0]; + const u32 ptes = min_t(u64, it.cnt, pten - ptei); + + /* Walk down the tree, finding page tables for each level. */ + for (; it.lvl; it.lvl--) { + const u32 pdei = it.pte[it.lvl]; + struct nvkm_vmm_pt *pgd = pgt; + + /* Software PT. */ + if (ref && NVKM_VMM_PDE_INVALID(pgd->pde[pdei])) { + if (!nvkm_vmm_ref_swpt(&it, pgd, pdei)) + goto fail; + } + it.pt[it.lvl - 1] = pgt = pgd->pde[pdei]; + + /* Hardware PT. + * + * This is a separate step from above due to GF100 and + * newer having dual page tables at some levels, which + * are refcounted independently. + */ + if (ref && !pgt->refs[desc[it.lvl - 1].type == SPT]) { + if (!nvkm_vmm_ref_hwpt(&it, pgd, pdei)) + goto fail; + } + } + + /* Handle PTE updates. */ + if (!REF_PTES || REF_PTES(&it, ptei, ptes)) { + struct nvkm_mmu_pt *pt = pgt->pt[type]; + if (MAP_PTES || CLR_PTES) { + if (MAP_PTES) + MAP_PTES(vmm, pt, ptei, ptes, map); + else + CLR_PTES(vmm, pt, ptei, ptes); + nvkm_vmm_flush_mark(&it); + } + } + + /* Walk back up the tree to the next position. */ + it.pte[it.lvl] += ptes; + it.cnt -= ptes; + if (it.cnt) { + while (it.pte[it.lvl] == (1 << desc[it.lvl].bits)) { + it.pte[it.lvl++] = 0; + it.pte[it.lvl]++; + } + } + }; + + nvkm_vmm_flush(&it); + return ~0ULL; + +fail: + /* Reconstruct the failure address so the caller is able to + * reverse any partially completed operations. + */ + addr = it.pte[it.max--]; + do { + addr = addr << desc[it.max].bits; + addr |= it.pte[it.max]; + } while (it.max--); + + return addr << page->shift; +} + +static void +nvkm_vmm_ptes_sparse_put(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page, + u64 addr, u64 size) +{ + nvkm_vmm_iter(vmm, page, addr, size, "sparse unref", false, + nvkm_vmm_sparse_unref_ptes, NULL, NULL, + page->desc->func->invalid ? + page->desc->func->invalid : page->desc->func->unmap); +} + +static int +nvkm_vmm_ptes_sparse_get(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page, + u64 addr, u64 size) +{ + if ((page->type & NVKM_VMM_PAGE_SPARSE)) { + u64 fail = nvkm_vmm_iter(vmm, page, addr, size, "sparse ref", + true, nvkm_vmm_sparse_ref_ptes, NULL, + NULL, page->desc->func->sparse); + if (fail != ~0ULL) { + if ((size = fail - addr)) + nvkm_vmm_ptes_sparse_put(vmm, page, addr, size); + return -ENOMEM; + } + return 0; + } + return -EINVAL; +} + +static int +nvkm_vmm_ptes_sparse(struct nvkm_vmm *vmm, u64 addr, u64 size, bool ref) +{ + const struct nvkm_vmm_page *page = vmm->func->page; + int m = 0, i; + u64 start = addr; + u64 block; + + while (size) { + /* Limit maximum page size based on remaining size. */ + while (size < (1ULL << page[m].shift)) + m++; + i = m; + + /* Find largest page size suitable for alignment. */ + while (!IS_ALIGNED(addr, 1ULL << page[i].shift)) + i++; + + /* Determine number of PTEs at this page size. */ + if (i != m) { + /* Limited to alignment boundary of next page size. */ + u64 next = 1ULL << page[i - 1].shift; + u64 part = ALIGN(addr, next) - addr; + if (size - part >= next) + block = (part >> page[i].shift) << page[i].shift; + else + block = (size >> page[i].shift) << page[i].shift; + } else { + block = (size >> page[i].shift) << page[i].shift;; + } + + /* Perform operation. */ + if (ref) { + int ret = nvkm_vmm_ptes_sparse_get(vmm, &page[i], addr, block); + if (ret) { + if ((size = addr - start)) + nvkm_vmm_ptes_sparse(vmm, start, size, false); + return ret; + } + } else { + nvkm_vmm_ptes_sparse_put(vmm, &page[i], addr, block); + } + + size -= block; + addr += block; + } + + return 0; +} + +static void +nvkm_vmm_ptes_unmap_put(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page, + u64 addr, u64 size, bool sparse) +{ + const struct nvkm_vmm_desc_func *func = page->desc->func; + nvkm_vmm_iter(vmm, page, addr, size, "unmap + unref", + false, nvkm_vmm_unref_ptes, NULL, NULL, + sparse ? func->sparse : func->invalid ? func->invalid : + func->unmap); +} + +static int +nvkm_vmm_ptes_get_map(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page, + u64 addr, u64 size, struct nvkm_vmm_map *map, + nvkm_vmm_pte_func func) +{ + u64 fail = nvkm_vmm_iter(vmm, page, addr, size, "ref + map", true, + nvkm_vmm_ref_ptes, func, map, NULL); + if (fail != ~0ULL) { + if ((size = fail - addr)) + nvkm_vmm_ptes_unmap_put(vmm, page, addr, size, false); + return -ENOMEM; + } + return 0; +} + +static void +nvkm_vmm_ptes_unmap(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page, + u64 addr, u64 size, bool sparse) +{ + const struct nvkm_vmm_desc_func *func = page->desc->func; + nvkm_vmm_iter(vmm, page, addr, size, "unmap", false, NULL, NULL, NULL, + sparse ? func->sparse : func->invalid ? func->invalid : + func->unmap); +} + +static void +nvkm_vmm_ptes_map(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page, + u64 addr, u64 size, struct nvkm_vmm_map *map, + nvkm_vmm_pte_func func) +{ + nvkm_vmm_iter(vmm, page, addr, size, "map", false, + NULL, func, map, NULL); +} + +static void +nvkm_vmm_ptes_put(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page, + u64 addr, u64 size) +{ + nvkm_vmm_iter(vmm, page, addr, size, "unref", false, + nvkm_vmm_unref_ptes, NULL, NULL, NULL); +} + +static int +nvkm_vmm_ptes_get(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page, + u64 addr, u64 size) +{ + u64 fail = nvkm_vmm_iter(vmm, page, addr, size, "ref", true, + nvkm_vmm_ref_ptes, NULL, NULL, NULL); + if (fail != ~0ULL) { + if (fail != addr) + nvkm_vmm_ptes_put(vmm, page, addr, fail - addr); + return -ENOMEM; + } + return 0; +} + +static inline struct nvkm_vma * +nvkm_vma_new(u64 addr, u64 size) +{ + struct nvkm_vma *vma = kzalloc(sizeof(*vma), GFP_KERNEL); + if (vma) { + vma->addr = addr; + vma->size = size; + vma->page = NVKM_VMA_PAGE_NONE; + vma->refd = NVKM_VMA_PAGE_NONE; + } + return vma; +} + +struct nvkm_vma * +nvkm_vma_tail(struct nvkm_vma *vma, u64 tail) +{ + struct nvkm_vma *new; + + BUG_ON(vma->size == tail); + + if (!(new = nvkm_vma_new(vma->addr + (vma->size - tail), tail))) + return NULL; + vma->size -= tail; + + new->mapref = vma->mapref; + new->sparse = vma->sparse; + new->page = vma->page; + new->refd = vma->refd; + new->used = vma->used; + new->part = vma->part; + new->user = vma->user; + new->busy = vma->busy; + list_add(&new->head, &vma->head); + return new; +} + +static void +nvkm_vmm_free_insert(struct nvkm_vmm *vmm, struct nvkm_vma *vma) +{ + struct rb_node **ptr = &vmm->free.rb_node; + struct rb_node *parent = NULL; + + while (*ptr) { + struct nvkm_vma *this = rb_entry(*ptr, typeof(*this), tree); + parent = *ptr; + if (vma->size < this->size) + ptr = &parent->rb_left; + else + if (vma->size > this->size) + ptr = &parent->rb_right; + else + if (vma->addr < this->addr) + ptr = &parent->rb_left; + else + if (vma->addr > this->addr) + ptr = &parent->rb_right; + else + BUG(); + } + + rb_link_node(&vma->tree, parent, ptr); + rb_insert_color(&vma->tree, &vmm->free); +} + +void +nvkm_vmm_node_insert(struct nvkm_vmm *vmm, struct nvkm_vma *vma) +{ + struct rb_node **ptr = &vmm->root.rb_node; + struct rb_node *parent = NULL; + + while (*ptr) { + struct nvkm_vma *this = rb_entry(*ptr, typeof(*this), tree); + parent = *ptr; + if (vma->addr < this->addr) + ptr = &parent->rb_left; + else + if (vma->addr > this->addr) + ptr = &parent->rb_right; + else + BUG(); + } + + rb_link_node(&vma->tree, parent, ptr); + rb_insert_color(&vma->tree, &vmm->root); +} + +struct nvkm_vma * +nvkm_vmm_node_search(struct nvkm_vmm *vmm, u64 addr) +{ + struct rb_node *node = vmm->root.rb_node; + while (node) { + struct nvkm_vma *vma = rb_entry(node, typeof(*vma), tree); + if (addr < vma->addr) + node = node->rb_left; + else + if (addr >= vma->addr + vma->size) + node = node->rb_right; + else + return vma; + } + return NULL; +} + +static void +nvkm_vmm_dtor(struct nvkm_vmm *vmm) +{ + struct nvkm_vma *vma; + struct rb_node *node; + + while ((node = rb_first(&vmm->root))) { + struct nvkm_vma *vma = rb_entry(node, typeof(*vma), tree); + nvkm_vmm_put(vmm, &vma); + } + + if (vmm->bootstrapped) { + const struct nvkm_vmm_page *page = vmm->func->page; + const u64 limit = vmm->limit - vmm->start; + + while (page[1].shift) + page++; + + nvkm_mmu_ptc_dump(vmm->mmu); + nvkm_vmm_ptes_put(vmm, page, vmm->start, limit); + } + + vma = list_first_entry(&vmm->list, typeof(*vma), head); + list_del(&vma->head); + kfree(vma); + WARN_ON(!list_empty(&vmm->list)); + + if (vmm->nullp) { + dma_free_coherent(vmm->mmu->subdev.device->dev, 16 * 1024, + vmm->nullp, vmm->null); + } + + if (vmm->pd) { + nvkm_mmu_ptc_put(vmm->mmu, true, &vmm->pd->pt[0]); + nvkm_vmm_pt_del(&vmm->pd); + } +} + +int +nvkm_vmm_ctor(const struct nvkm_vmm_func *func, struct nvkm_mmu *mmu, + u32 pd_header, u64 addr, u64 size, struct lock_class_key *key, + const char *name, struct nvkm_vmm *vmm) +{ + static struct lock_class_key _key; + const struct nvkm_vmm_page *page = func->page; + const struct nvkm_vmm_desc *desc; + struct nvkm_vma *vma; + int levels, bits = 0; + + vmm->func = func; + vmm->mmu = mmu; + vmm->name = name; + vmm->debug = mmu->subdev.debug; + kref_init(&vmm->kref); + + __mutex_init(&vmm->mutex, "&vmm->mutex", key ? key : &_key); + + /* Locate the smallest page size supported by the backend, it will + * have the the deepest nesting of page tables. + */ + while (page[1].shift) + page++; + + /* Locate the structure that describes the layout of the top-level + * page table, and determine the number of valid bits in a virtual + * address. + */ + for (levels = 0, desc = page->desc; desc->bits; desc++, levels++) + bits += desc->bits; + bits += page->shift; + desc--; + + if (WARN_ON(levels > NVKM_VMM_LEVELS_MAX)) + return -EINVAL; + + vmm->start = addr; + vmm->limit = size ? (addr + size) : (1ULL << bits); + if (vmm->start > vmm->limit || vmm->limit > (1ULL << bits)) + return -EINVAL; + + /* Allocate top-level page table. */ + vmm->pd = nvkm_vmm_pt_new(desc, false, NULL); + if (!vmm->pd) + return -ENOMEM; + vmm->pd->refs[0] = 1; + INIT_LIST_HEAD(&vmm->join); + + /* ... and the GPU storage for it, except on Tesla-class GPUs that + * have the PD embedded in the instance structure. + */ + if (desc->size) { + const u32 size = pd_header + desc->size * (1 << desc->bits); + vmm->pd->pt[0] = nvkm_mmu_ptc_get(mmu, size, desc->align, true); + if (!vmm->pd->pt[0]) + return -ENOMEM; + } + + /* Initialise address-space MM. */ + INIT_LIST_HEAD(&vmm->list); + vmm->free = RB_ROOT; + vmm->root = RB_ROOT; + + if (!(vma = nvkm_vma_new(vmm->start, vmm->limit - vmm->start))) + return -ENOMEM; + + nvkm_vmm_free_insert(vmm, vma); + list_add(&vma->head, &vmm->list); + return 0; +} + +int +nvkm_vmm_new_(const struct nvkm_vmm_func *func, struct nvkm_mmu *mmu, + u32 hdr, u64 addr, u64 size, struct lock_class_key *key, + const char *name, struct nvkm_vmm **pvmm) +{ + if (!(*pvmm = kzalloc(sizeof(**pvmm), GFP_KERNEL))) + return -ENOMEM; + return nvkm_vmm_ctor(func, mmu, hdr, addr, size, key, name, *pvmm); +} + +#define node(root, dir) ((root)->head.dir == &vmm->list) ? NULL : \ + list_entry((root)->head.dir, struct nvkm_vma, head) + +void +nvkm_vmm_unmap_region(struct nvkm_vmm *vmm, struct nvkm_vma *vma) +{ + struct nvkm_vma *next; + + nvkm_memory_tags_put(vma->memory, vmm->mmu->subdev.device, &vma->tags); + nvkm_memory_unref(&vma->memory); + + if (vma->part) { + struct nvkm_vma *prev = node(vma, prev); + if (!prev->memory) { + prev->size += vma->size; + rb_erase(&vma->tree, &vmm->root); + list_del(&vma->head); + kfree(vma); + vma = prev; + } + } + + next = node(vma, next); + if (next && next->part) { + if (!next->memory) { + vma->size += next->size; + rb_erase(&next->tree, &vmm->root); + list_del(&next->head); + kfree(next); + } + } +} + +void +nvkm_vmm_unmap_locked(struct nvkm_vmm *vmm, struct nvkm_vma *vma) +{ + const struct nvkm_vmm_page *page = &vmm->func->page[vma->refd]; + + if (vma->mapref) { + nvkm_vmm_ptes_unmap_put(vmm, page, vma->addr, vma->size, vma->sparse); + vma->refd = NVKM_VMA_PAGE_NONE; + } else { + nvkm_vmm_ptes_unmap(vmm, page, vma->addr, vma->size, vma->sparse); + } + + nvkm_vmm_unmap_region(vmm, vma); +} + +void +nvkm_vmm_unmap(struct nvkm_vmm *vmm, struct nvkm_vma *vma) +{ + if (vma->memory) { + mutex_lock(&vmm->mutex); + nvkm_vmm_unmap_locked(vmm, vma); + mutex_unlock(&vmm->mutex); + } +} + +static int +nvkm_vmm_map_valid(struct nvkm_vmm *vmm, struct nvkm_vma *vma, + void *argv, u32 argc, struct nvkm_vmm_map *map) +{ + switch (nvkm_memory_target(map->memory)) { + case NVKM_MEM_TARGET_VRAM: + if (!(map->page->type & NVKM_VMM_PAGE_VRAM)) { + VMM_DEBUG(vmm, "%d !VRAM", map->page->shift); + return -EINVAL; + } + break; + case NVKM_MEM_TARGET_HOST: + case NVKM_MEM_TARGET_NCOH: + if (!(map->page->type & NVKM_VMM_PAGE_HOST)) { + VMM_DEBUG(vmm, "%d !HOST", map->page->shift); + return -EINVAL; + } + break; + default: + WARN_ON(1); + return -ENOSYS; + } + + if (!IS_ALIGNED( vma->addr, 1ULL << map->page->shift) || + !IS_ALIGNED((u64)vma->size, 1ULL << map->page->shift) || + !IS_ALIGNED( map->offset, 1ULL << map->page->shift) || + nvkm_memory_page(map->memory) < map->page->shift) { + VMM_DEBUG(vmm, "alignment %016llx %016llx %016llx %d %d", + vma->addr, (u64)vma->size, map->offset, map->page->shift, + nvkm_memory_page(map->memory)); + return -EINVAL; + } + + return vmm->func->valid(vmm, argv, argc, map); +} + +static int +nvkm_vmm_map_choose(struct nvkm_vmm *vmm, struct nvkm_vma *vma, + void *argv, u32 argc, struct nvkm_vmm_map *map) +{ + for (map->page = vmm->func->page; map->page->shift; map->page++) { + VMM_DEBUG(vmm, "trying %d", map->page->shift); + if (!nvkm_vmm_map_valid(vmm, vma, argv, argc, map)) + return 0; + } + return -EINVAL; +} + +static int +nvkm_vmm_map_locked(struct nvkm_vmm *vmm, struct nvkm_vma *vma, + void *argv, u32 argc, struct nvkm_vmm_map *map) +{ + nvkm_vmm_pte_func func; + int ret; + + /* Make sure we won't overrun the end of the memory object. */ + if (unlikely(nvkm_memory_size(map->memory) < map->offset + vma->size)) { + VMM_DEBUG(vmm, "overrun %016llx %016llx %016llx", + nvkm_memory_size(map->memory), + map->offset, (u64)vma->size); + return -EINVAL; + } + + /* Check remaining arguments for validity. */ + if (vma->page == NVKM_VMA_PAGE_NONE && + vma->refd == NVKM_VMA_PAGE_NONE) { + /* Find the largest page size we can perform the mapping at. */ + const u32 debug = vmm->debug; + vmm->debug = 0; + ret = nvkm_vmm_map_choose(vmm, vma, argv, argc, map); + vmm->debug = debug; + if (ret) { + VMM_DEBUG(vmm, "invalid at any page size"); + nvkm_vmm_map_choose(vmm, vma, argv, argc, map); + return -EINVAL; + } + } else { + /* Page size of the VMA is already pre-determined. */ + if (vma->refd != NVKM_VMA_PAGE_NONE) + map->page = &vmm->func->page[vma->refd]; + else + map->page = &vmm->func->page[vma->page]; + + ret = nvkm_vmm_map_valid(vmm, vma, argv, argc, map); + if (ret) { + VMM_DEBUG(vmm, "invalid %d\n", ret); + return ret; + } + } + + /* Deal with the 'offset' argument, and fetch the backend function. */ + map->off = map->offset; + if (map->mem) { + for (; map->off; map->mem = map->mem->next) { + u64 size = (u64)map->mem->length << NVKM_RAM_MM_SHIFT; + if (size > map->off) + break; + map->off -= size; + } + func = map->page->desc->func->mem; + } else + if (map->sgl) { + for (; map->off; map->sgl = sg_next(map->sgl)) { + u64 size = sg_dma_len(map->sgl); + if (size > map->off) + break; + map->off -= size; + } + func = map->page->desc->func->sgl; + } else { + map->dma += map->offset >> PAGE_SHIFT; + map->off = map->offset & PAGE_MASK; + func = map->page->desc->func->dma; + } + + /* Perform the map. */ + if (vma->refd == NVKM_VMA_PAGE_NONE) { + ret = nvkm_vmm_ptes_get_map(vmm, map->page, vma->addr, vma->size, map, func); + if (ret) + return ret; + + vma->refd = map->page - vmm->func->page; + } else { + nvkm_vmm_ptes_map(vmm, map->page, vma->addr, vma->size, map, func); + } + + nvkm_memory_tags_put(vma->memory, vmm->mmu->subdev.device, &vma->tags); + nvkm_memory_unref(&vma->memory); + vma->memory = nvkm_memory_ref(map->memory); + vma->tags = map->tags; + return 0; +} + +int +nvkm_vmm_map(struct nvkm_vmm *vmm, struct nvkm_vma *vma, void *argv, u32 argc, + struct nvkm_vmm_map *map) +{ + int ret; + mutex_lock(&vmm->mutex); + ret = nvkm_vmm_map_locked(vmm, vma, argv, argc, map); + vma->busy = false; + mutex_unlock(&vmm->mutex); + return ret; +} + +static void +nvkm_vmm_put_region(struct nvkm_vmm *vmm, struct nvkm_vma *vma) +{ + struct nvkm_vma *prev, *next; + + if ((prev = node(vma, prev)) && !prev->used) { + rb_erase(&prev->tree, &vmm->free); + list_del(&prev->head); + vma->addr = prev->addr; + vma->size += prev->size; + kfree(prev); + } + + if ((next = node(vma, next)) && !next->used) { + rb_erase(&next->tree, &vmm->free); + list_del(&next->head); + vma->size += next->size; + kfree(next); + } + + nvkm_vmm_free_insert(vmm, vma); +} + +void +nvkm_vmm_put_locked(struct nvkm_vmm *vmm, struct nvkm_vma *vma) +{ + const struct nvkm_vmm_page *page = vmm->func->page; + struct nvkm_vma *next = vma; + + BUG_ON(vma->part); + + if (vma->mapref || !vma->sparse) { + do { + const bool map = next->memory != NULL; + const u8 refd = next->refd; + const u64 addr = next->addr; + u64 size = next->size; + + /* Merge regions that are in the same state. */ + while ((next = node(next, next)) && next->part && + (next->memory != NULL) == map && + (next->refd == refd)) + size += next->size; + + if (map) { + /* Region(s) are mapped, merge the unmap + * and dereference into a single walk of + * the page tree. + */ + nvkm_vmm_ptes_unmap_put(vmm, &page[refd], addr, + size, vma->sparse); + } else + if (refd != NVKM_VMA_PAGE_NONE) { + /* Drop allocation-time PTE references. */ + nvkm_vmm_ptes_put(vmm, &page[refd], addr, size); + } + } while (next && next->part); + } + + /* Merge any mapped regions that were split from the initial + * address-space allocation back into the allocated VMA, and + * release memory/compression resources. + */ + next = vma; + do { + if (next->memory) + nvkm_vmm_unmap_region(vmm, next); + } while ((next = node(vma, next)) && next->part); + + if (vma->sparse && !vma->mapref) { + /* Sparse region that was allocated with a fixed page size, + * meaning all relevant PTEs were referenced once when the + * region was allocated, and remained that way, regardless + * of whether memory was mapped into it afterwards. + * + * The process of unmapping, unsparsing, and dereferencing + * PTEs can be done in a single page tree walk. + */ + nvkm_vmm_ptes_sparse_put(vmm, &page[vma->refd], vma->addr, vma->size); + } else + if (vma->sparse) { + /* Sparse region that wasn't allocated with a fixed page size, + * PTE references were taken both at allocation time (to make + * the GPU see the region as sparse), and when mapping memory + * into the region. + * + * The latter was handled above, and the remaining references + * are dealt with here. + */ + nvkm_vmm_ptes_sparse(vmm, vma->addr, vma->size, false); + } + + /* Remove VMA from the list of allocated nodes. */ + rb_erase(&vma->tree, &vmm->root); + + /* Merge VMA back into the free list. */ + vma->page = NVKM_VMA_PAGE_NONE; + vma->refd = NVKM_VMA_PAGE_NONE; + vma->used = false; + vma->user = false; + nvkm_vmm_put_region(vmm, vma); +} + +void +nvkm_vmm_put(struct nvkm_vmm *vmm, struct nvkm_vma **pvma) +{ + struct nvkm_vma *vma = *pvma; + if (vma) { + mutex_lock(&vmm->mutex); + nvkm_vmm_put_locked(vmm, vma); + mutex_unlock(&vmm->mutex); + *pvma = NULL; + } +} + +int +nvkm_vmm_get_locked(struct nvkm_vmm *vmm, bool getref, bool mapref, bool sparse, + u8 shift, u8 align, u64 size, struct nvkm_vma **pvma) +{ + const struct nvkm_vmm_page *page = &vmm->func->page[NVKM_VMA_PAGE_NONE]; + struct rb_node *node = NULL, *temp; + struct nvkm_vma *vma = NULL, *tmp; + u64 addr, tail; + int ret; + + VMM_TRACE(vmm, "getref %d mapref %d sparse %d " + "shift: %d align: %d size: %016llx", + getref, mapref, sparse, shift, align, size); + + /* Zero-sized, or lazily-allocated sparse VMAs, make no sense. */ + if (unlikely(!size || (!getref && !mapref && sparse))) { + VMM_DEBUG(vmm, "args %016llx %d %d %d", + size, getref, mapref, sparse); + return -EINVAL; + } + + /* Tesla-class GPUs can only select page size per-PDE, which means + * we're required to know the mapping granularity up-front to find + * a suitable region of address-space. + * + * The same goes if we're requesting up-front allocation of PTES. + */ + if (unlikely((getref || vmm->func->page_block) && !shift)) { + VMM_DEBUG(vmm, "page size required: %d %016llx", + getref, vmm->func->page_block); + return -EINVAL; + } + + /* If a specific page size was requested, determine its index and + * make sure the requested size is a multiple of the page size. + */ + if (shift) { + for (page = vmm->func->page; page->shift; page++) { + if (shift == page->shift) + break; + } + + if (!page->shift || !IS_ALIGNED(size, 1ULL << page->shift)) { + VMM_DEBUG(vmm, "page %d %016llx", shift, size); + return -EINVAL; + } + align = max_t(u8, align, shift); + } else { + align = max_t(u8, align, 12); + } + + /* Locate smallest block that can possibly satisfy the allocation. */ + temp = vmm->free.rb_node; + while (temp) { + struct nvkm_vma *this = rb_entry(temp, typeof(*this), tree); + if (this->size < size) { + temp = temp->rb_right; + } else { + node = temp; + temp = temp->rb_left; + } + } + + if (unlikely(!node)) + return -ENOSPC; + + /* Take into account alignment restrictions, trying larger blocks + * in turn until we find a suitable free block. + */ + do { + struct nvkm_vma *this = rb_entry(node, typeof(*this), tree); + struct nvkm_vma *prev = node(this, prev); + struct nvkm_vma *next = node(this, next); + const int p = page - vmm->func->page; + + addr = this->addr; + if (vmm->func->page_block && prev && prev->page != p) + addr = ALIGN(addr, vmm->func->page_block); + addr = ALIGN(addr, 1ULL << align); + + tail = this->addr + this->size; + if (vmm->func->page_block && next && next->page != p) + tail = ALIGN_DOWN(addr, vmm->func->page_block); + + if (addr <= tail && tail - addr >= size) { + rb_erase(&this->tree, &vmm->free); + vma = this; + break; + } + } while ((node = rb_next(node))); + + if (unlikely(!vma)) + return -ENOSPC; + + /* If the VMA we found isn't already exactly the requested size, + * it needs to be split, and the remaining free blocks returned. + */ + if (addr != vma->addr) { + if (!(tmp = nvkm_vma_tail(vma, vma->size + vma->addr - addr))) { + nvkm_vmm_put_region(vmm, vma); + return -ENOMEM; + } + nvkm_vmm_free_insert(vmm, vma); + vma = tmp; + } + + if (size != vma->size) { + if (!(tmp = nvkm_vma_tail(vma, vma->size - size))) { + nvkm_vmm_put_region(vmm, vma); + return -ENOMEM; + } + nvkm_vmm_free_insert(vmm, tmp); + } + + /* Pre-allocate page tables and/or setup sparse mappings. */ + if (sparse && getref) + ret = nvkm_vmm_ptes_sparse_get(vmm, page, vma->addr, vma->size); + else if (sparse) + ret = nvkm_vmm_ptes_sparse(vmm, vma->addr, vma->size, true); + else if (getref) + ret = nvkm_vmm_ptes_get(vmm, page, vma->addr, vma->size); + else + ret = 0; + if (ret) { + nvkm_vmm_put_region(vmm, vma); + return ret; + } + + vma->mapref = mapref && !getref; + vma->sparse = sparse; + vma->page = page - vmm->func->page; + vma->refd = getref ? vma->page : NVKM_VMA_PAGE_NONE; + vma->used = true; + nvkm_vmm_node_insert(vmm, vma); + *pvma = vma; + return 0; +} + +int +nvkm_vmm_get(struct nvkm_vmm *vmm, u8 page, u64 size, struct nvkm_vma **pvma) +{ + int ret; + mutex_lock(&vmm->mutex); + ret = nvkm_vmm_get_locked(vmm, false, true, false, page, 0, size, pvma); + mutex_unlock(&vmm->mutex); + return ret; +} + +void +nvkm_vmm_part(struct nvkm_vmm *vmm, struct nvkm_memory *inst) +{ + if (vmm->func->part && inst) { + mutex_lock(&vmm->mutex); + vmm->func->part(vmm, inst); + mutex_unlock(&vmm->mutex); + } +} + +int +nvkm_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst) +{ + int ret = 0; + if (vmm->func->join) { + mutex_lock(&vmm->mutex); + ret = vmm->func->join(vmm, inst); + mutex_unlock(&vmm->mutex); + } + return ret; +} + +static bool +nvkm_vmm_boot_ptes(struct nvkm_vmm_iter *it, u32 ptei, u32 ptes) +{ + const struct nvkm_vmm_desc *desc = it->desc; + const int type = desc->type == SPT; + nvkm_memory_boot(it->pt[0]->pt[type]->memory, it->vmm); + return false; +} + +int +nvkm_vmm_boot(struct nvkm_vmm *vmm) +{ + const struct nvkm_vmm_page *page = vmm->func->page; + const u64 limit = vmm->limit - vmm->start; + int ret; + + while (page[1].shift) + page++; + + ret = nvkm_vmm_ptes_get(vmm, page, vmm->start, limit); + if (ret) + return ret; + + nvkm_vmm_iter(vmm, page, vmm->start, limit, "bootstrap", false, + nvkm_vmm_boot_ptes, NULL, NULL, NULL); + vmm->bootstrapped = true; + return 0; +} + +static void +nvkm_vmm_del(struct kref *kref) +{ + struct nvkm_vmm *vmm = container_of(kref, typeof(*vmm), kref); + nvkm_vmm_dtor(vmm); + kfree(vmm); +} + +void +nvkm_vmm_unref(struct nvkm_vmm **pvmm) +{ + struct nvkm_vmm *vmm = *pvmm; + if (vmm) { + kref_put(&vmm->kref, nvkm_vmm_del); + *pvmm = NULL; + } +} + +struct nvkm_vmm * +nvkm_vmm_ref(struct nvkm_vmm *vmm) +{ + if (vmm) + kref_get(&vmm->kref); + return vmm; +} + +int +nvkm_vmm_new(struct nvkm_device *device, u64 addr, u64 size, void *argv, + u32 argc, struct lock_class_key *key, const char *name, + struct nvkm_vmm **pvmm) +{ + struct nvkm_mmu *mmu = device->mmu; + struct nvkm_vmm *vmm = NULL; + int ret; + ret = mmu->func->vmm.ctor(mmu, addr, size, argv, argc, key, name, &vmm); + if (ret) + nvkm_vmm_unref(&vmm); + *pvmm = vmm; + return ret; +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h new file mode 100644 index 000000000000..6d8f61ea467a --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h @@ -0,0 +1,310 @@ +#ifndef __NVKM_VMM_H__ +#define __NVKM_VMM_H__ +#include "priv.h" +#include <core/memory.h> +enum nvkm_memory_target; + +struct nvkm_vmm_pt { + /* Some GPUs have a mapping level with a dual page tables to + * support large and small pages in the same address-range. + * + * We track the state of both page tables in one place, which + * is why there's multiple PT pointers/refcounts here. + */ + struct nvkm_mmu_pt *pt[2]; + u32 refs[2]; + + /* Page size handled by this PT. + * + * Tesla backend needs to know this when writinge PDEs, + * otherwise unnecessary. + */ + u8 page; + + /* Entire page table sparse. + * + * Used to propagate sparseness to child page tables. + */ + bool sparse:1; + + /* Tracking for page directories. + * + * The array is indexed by PDE, and will either point to the + * child page table, or indicate the PDE is marked as sparse. + **/ +#define NVKM_VMM_PDE_INVALID(pde) IS_ERR_OR_NULL(pde) +#define NVKM_VMM_PDE_SPARSED(pde) IS_ERR(pde) +#define NVKM_VMM_PDE_SPARSE ERR_PTR(-EBUSY) + struct nvkm_vmm_pt **pde; + + /* Tracking for dual page tables. + * + * There's one entry for each LPTE, keeping track of whether + * there are valid SPTEs in the same address-range. + * + * This information is used to manage LPTE state transitions. + */ +#define NVKM_VMM_PTE_SPARSE 0x80 +#define NVKM_VMM_PTE_VALID 0x40 +#define NVKM_VMM_PTE_SPTES 0x3f + u8 pte[]; +}; + +typedef void (*nvkm_vmm_pxe_func)(struct nvkm_vmm *, + struct nvkm_mmu_pt *, u32 ptei, u32 ptes); +typedef void (*nvkm_vmm_pde_func)(struct nvkm_vmm *, + struct nvkm_vmm_pt *, u32 pdei); +typedef void (*nvkm_vmm_pte_func)(struct nvkm_vmm *, struct nvkm_mmu_pt *, + u32 ptei, u32 ptes, struct nvkm_vmm_map *); + +struct nvkm_vmm_desc_func { + nvkm_vmm_pxe_func invalid; + nvkm_vmm_pxe_func unmap; + nvkm_vmm_pxe_func sparse; + + nvkm_vmm_pde_func pde; + + nvkm_vmm_pte_func mem; + nvkm_vmm_pte_func dma; + nvkm_vmm_pte_func sgl; +}; + +extern const struct nvkm_vmm_desc_func gf100_vmm_pgd; +void gf100_vmm_pgd_pde(struct nvkm_vmm *, struct nvkm_vmm_pt *, u32); +extern const struct nvkm_vmm_desc_func gf100_vmm_pgt; +void gf100_vmm_pgt_unmap(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32); +void gf100_vmm_pgt_mem(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32, + struct nvkm_vmm_map *); +void gf100_vmm_pgt_dma(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32, + struct nvkm_vmm_map *); +void gf100_vmm_pgt_sgl(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32, + struct nvkm_vmm_map *); + +void gk104_vmm_lpt_invalid(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32); + +struct nvkm_vmm_desc { + enum { + PGD, + PGT, + SPT, + LPT, + } type; + u8 bits; /* VMA bits covered by PT. */ + u8 size; /* Bytes-per-PTE. */ + u32 align; /* PT address alignment. */ + const struct nvkm_vmm_desc_func *func; +}; + +extern const struct nvkm_vmm_desc gk104_vmm_desc_16_12[]; +extern const struct nvkm_vmm_desc gk104_vmm_desc_16_16[]; +extern const struct nvkm_vmm_desc gk104_vmm_desc_17_12[]; +extern const struct nvkm_vmm_desc gk104_vmm_desc_17_17[]; + +extern const struct nvkm_vmm_desc gm200_vmm_desc_16_12[]; +extern const struct nvkm_vmm_desc gm200_vmm_desc_16_16[]; +extern const struct nvkm_vmm_desc gm200_vmm_desc_17_12[]; +extern const struct nvkm_vmm_desc gm200_vmm_desc_17_17[]; + +extern const struct nvkm_vmm_desc gp100_vmm_desc_12[]; +extern const struct nvkm_vmm_desc gp100_vmm_desc_16[]; + +struct nvkm_vmm_page { + u8 shift; + const struct nvkm_vmm_desc *desc; +#define NVKM_VMM_PAGE_SPARSE 0x01 +#define NVKM_VMM_PAGE_VRAM 0x02 +#define NVKM_VMM_PAGE_HOST 0x04 +#define NVKM_VMM_PAGE_COMP 0x08 +#define NVKM_VMM_PAGE_Sxxx (NVKM_VMM_PAGE_SPARSE) +#define NVKM_VMM_PAGE_xVxx (NVKM_VMM_PAGE_VRAM) +#define NVKM_VMM_PAGE_SVxx (NVKM_VMM_PAGE_Sxxx | NVKM_VMM_PAGE_VRAM) +#define NVKM_VMM_PAGE_xxHx (NVKM_VMM_PAGE_HOST) +#define NVKM_VMM_PAGE_SxHx (NVKM_VMM_PAGE_Sxxx | NVKM_VMM_PAGE_HOST) +#define NVKM_VMM_PAGE_xVHx (NVKM_VMM_PAGE_xVxx | NVKM_VMM_PAGE_HOST) +#define NVKM_VMM_PAGE_SVHx (NVKM_VMM_PAGE_SVxx | NVKM_VMM_PAGE_HOST) +#define NVKM_VMM_PAGE_xVxC (NVKM_VMM_PAGE_xVxx | NVKM_VMM_PAGE_COMP) +#define NVKM_VMM_PAGE_SVxC (NVKM_VMM_PAGE_SVxx | NVKM_VMM_PAGE_COMP) +#define NVKM_VMM_PAGE_xxHC (NVKM_VMM_PAGE_xxHx | NVKM_VMM_PAGE_COMP) +#define NVKM_VMM_PAGE_SxHC (NVKM_VMM_PAGE_SxHx | NVKM_VMM_PAGE_COMP) + u8 type; +}; + +struct nvkm_vmm_func { + int (*join)(struct nvkm_vmm *, struct nvkm_memory *inst); + void (*part)(struct nvkm_vmm *, struct nvkm_memory *inst); + + int (*aper)(enum nvkm_memory_target); + int (*valid)(struct nvkm_vmm *, void *argv, u32 argc, + struct nvkm_vmm_map *); + void (*flush)(struct nvkm_vmm *, int depth); + + u64 page_block; + const struct nvkm_vmm_page page[]; +}; + +struct nvkm_vmm_join { + struct nvkm_memory *inst; + struct list_head head; +}; + +int nvkm_vmm_new_(const struct nvkm_vmm_func *, struct nvkm_mmu *, + u32 pd_header, u64 addr, u64 size, struct lock_class_key *, + const char *name, struct nvkm_vmm **); +int nvkm_vmm_ctor(const struct nvkm_vmm_func *, struct nvkm_mmu *, + u32 pd_header, u64 addr, u64 size, struct lock_class_key *, + const char *name, struct nvkm_vmm *); +struct nvkm_vma *nvkm_vmm_node_search(struct nvkm_vmm *, u64 addr); +int nvkm_vmm_get_locked(struct nvkm_vmm *, bool getref, bool mapref, + bool sparse, u8 page, u8 align, u64 size, + struct nvkm_vma **pvma); +void nvkm_vmm_put_locked(struct nvkm_vmm *, struct nvkm_vma *); +void nvkm_vmm_unmap_locked(struct nvkm_vmm *, struct nvkm_vma *); +void nvkm_vmm_unmap_region(struct nvkm_vmm *vmm, struct nvkm_vma *vma); + +struct nvkm_vma *nvkm_vma_tail(struct nvkm_vma *, u64 tail); +void nvkm_vmm_node_insert(struct nvkm_vmm *, struct nvkm_vma *); + +int nv04_vmm_new_(const struct nvkm_vmm_func *, struct nvkm_mmu *, u32, + u64, u64, void *, u32, struct lock_class_key *, + const char *, struct nvkm_vmm **); +int nv04_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *); + +int gf100_vmm_new_(const struct nvkm_vmm_func *, const struct nvkm_vmm_func *, + struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int gf100_vmm_join_(struct nvkm_vmm *, struct nvkm_memory *, u64 base); +int gf100_vmm_join(struct nvkm_vmm *, struct nvkm_memory *); +void gf100_vmm_part(struct nvkm_vmm *, struct nvkm_memory *); +int gf100_vmm_aper(enum nvkm_memory_target); +int gf100_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *); +void gf100_vmm_flush_(struct nvkm_vmm *, int); +void gf100_vmm_flush(struct nvkm_vmm *, int); + +int gk20a_vmm_aper(enum nvkm_memory_target); + +int gm200_vmm_new_(const struct nvkm_vmm_func *, const struct nvkm_vmm_func *, + struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int gm200_vmm_join_(struct nvkm_vmm *, struct nvkm_memory *, u64 base); +int gm200_vmm_join(struct nvkm_vmm *, struct nvkm_memory *); + +int gp100_vmm_join(struct nvkm_vmm *, struct nvkm_memory *); +int gp100_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *); +void gp100_vmm_flush(struct nvkm_vmm *, int); + +int nv04_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int nv41_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int nv44_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int nv50_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int g84_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int gf100_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int gk104_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int gk20a_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, struct nvkm_vmm **); +int gm200_vmm_new_fixed(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, + struct nvkm_vmm **); +int gm200_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, + struct nvkm_vmm **); +int gm20b_vmm_new_fixed(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, + struct nvkm_vmm **); +int gm20b_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, + struct nvkm_vmm **); +int gp100_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, + struct nvkm_vmm **); +int gp10b_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, + struct lock_class_key *, const char *, + struct nvkm_vmm **); + +#define VMM_PRINT(l,v,p,f,a...) do { \ + struct nvkm_vmm *_vmm = (v); \ + if (CONFIG_NOUVEAU_DEBUG >= (l) && _vmm->debug >= (l)) { \ + nvkm_printk_(&_vmm->mmu->subdev, 0, p, "%s: "f"\n", \ + _vmm->name, ##a); \ + } \ +} while(0) +#define VMM_DEBUG(v,f,a...) VMM_PRINT(NV_DBG_DEBUG, (v), info, f, ##a) +#define VMM_TRACE(v,f,a...) VMM_PRINT(NV_DBG_TRACE, (v), info, f, ##a) +#define VMM_SPAM(v,f,a...) VMM_PRINT(NV_DBG_SPAM , (v), dbg, f, ##a) + +#define VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL,BASE,SIZE,NEXT) do { \ + nvkm_kmap((PT)->memory); \ + while (PTEN) { \ + u64 _ptes = ((SIZE) - MAP->off) >> MAP->page->shift; \ + u64 _addr = ((BASE) + MAP->off); \ + \ + if (_ptes > PTEN) { \ + MAP->off += PTEN << MAP->page->shift; \ + _ptes = PTEN; \ + } else { \ + MAP->off = 0; \ + NEXT; \ + } \ + \ + VMM_SPAM(VMM, "ITER %08x %08x PTE(s)", PTEI, (u32)_ptes); \ + \ + FILL(VMM, PT, PTEI, _ptes, MAP, _addr); \ + PTEI += _ptes; \ + PTEN -= _ptes; \ + }; \ + nvkm_done((PT)->memory); \ +} while(0) + +#define VMM_MAP_ITER_MEM(VMM,PT,PTEI,PTEN,MAP,FILL) \ + VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL, \ + ((u64)MAP->mem->offset << NVKM_RAM_MM_SHIFT), \ + ((u64)MAP->mem->length << NVKM_RAM_MM_SHIFT), \ + (MAP->mem = MAP->mem->next)) +#define VMM_MAP_ITER_DMA(VMM,PT,PTEI,PTEN,MAP,FILL) \ + VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL, \ + *MAP->dma, PAGE_SIZE, MAP->dma++) +#define VMM_MAP_ITER_SGL(VMM,PT,PTEI,PTEN,MAP,FILL) \ + VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL, \ + sg_dma_address(MAP->sgl), sg_dma_len(MAP->sgl), \ + (MAP->sgl = sg_next(MAP->sgl))) + +#define VMM_FO(m,o,d,c,b) nvkm_fo##b((m)->memory, (o), (d), (c)) +#define VMM_WO(m,o,d,c,b) nvkm_wo##b((m)->memory, (o), (d)) +#define VMM_XO(m,v,o,d,c,b,fn,f,a...) do { \ + const u32 _pteo = (o); u##b _data = (d); \ + VMM_SPAM((v), " %010llx "f, (m)->addr + _pteo, _data, ##a); \ + VMM_##fn((m), (m)->base + _pteo, _data, (c), b); \ +} while(0) + +#define VMM_WO032(m,v,o,d) VMM_XO((m),(v),(o),(d), 1, 32, WO, "%08x") +#define VMM_FO032(m,v,o,d,c) \ + VMM_XO((m),(v),(o),(d),(c), 32, FO, "%08x %08x", (c)) + +#define VMM_WO064(m,v,o,d) VMM_XO((m),(v),(o),(d), 1, 64, WO, "%016llx") +#define VMM_FO064(m,v,o,d,c) \ + VMM_XO((m),(v),(o),(d),(c), 64, FO, "%016llx %08x", (c)) + +#define VMM_XO128(m,v,o,lo,hi,c,f,a...) do { \ + u32 _pteo = (o), _ptes = (c); \ + const u64 _addr = (m)->addr + _pteo; \ + VMM_SPAM((v), " %010llx %016llx%016llx"f, _addr, (hi), (lo), ##a); \ + while (_ptes--) { \ + nvkm_wo64((m)->memory, (m)->base + _pteo + 0, (lo)); \ + nvkm_wo64((m)->memory, (m)->base + _pteo + 8, (hi)); \ + _pteo += 0x10; \ + } \ +} while(0) + +#define VMM_WO128(m,v,o,lo,hi) VMM_XO128((m),(v),(o),(lo),(hi), 1, "") +#define VMM_FO128(m,v,o,lo,hi,c) do { \ + nvkm_kmap((m)->memory); \ + VMM_XO128((m),(v),(o),(lo),(hi),(c), " %08x", (c)); \ + nvkm_done((m)->memory); \ +} while(0) +#endif diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgf100.c new file mode 100644 index 000000000000..faf5a7e9265e --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgf100.c @@ -0,0 +1,403 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "vmm.h" + +#include <subdev/fb.h> +#include <subdev/ltc.h> +#include <subdev/timer.h> + +#include <nvif/if900d.h> +#include <nvif/unpack.h> + +static inline void +gf100_vmm_pgt_pte(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map, u64 addr) +{ + u64 base = (addr >> 8) | map->type; + u64 data = base; + + if (map->ctag && !(map->next & (1ULL << 44))) { + while (ptes--) { + data = base | ((map->ctag >> 1) << 44); + if (!(map->ctag++ & 1)) + data |= BIT_ULL(60); + + VMM_WO064(pt, vmm, ptei++ * 8, data); + base += map->next; + } + } else { + map->type += ptes * map->ctag; + + while (ptes--) { + VMM_WO064(pt, vmm, ptei++ * 8, data); + data += map->next; + } + } +} + +void +gf100_vmm_pgt_sgl(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map) +{ + VMM_MAP_ITER_SGL(vmm, pt, ptei, ptes, map, gf100_vmm_pgt_pte); +} + +void +gf100_vmm_pgt_dma(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map) +{ + if (map->page->shift == PAGE_SHIFT) { + VMM_SPAM(vmm, "DMAA %08x %08x PTE(s)", ptei, ptes); + nvkm_kmap(pt->memory); + while (ptes--) { + const u64 data = (*map->dma++ >> 8) | map->type; + VMM_WO064(pt, vmm, ptei++ * 8, data); + map->type += map->ctag; + } + nvkm_done(pt->memory); + return; + } + + VMM_MAP_ITER_DMA(vmm, pt, ptei, ptes, map, gf100_vmm_pgt_pte); +} + +void +gf100_vmm_pgt_mem(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map) +{ + VMM_MAP_ITER_MEM(vmm, pt, ptei, ptes, map, gf100_vmm_pgt_pte); +} + +void +gf100_vmm_pgt_unmap(struct nvkm_vmm *vmm, + struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes) +{ + VMM_FO064(pt, vmm, ptei * 8, 0ULL, ptes); +} + +const struct nvkm_vmm_desc_func +gf100_vmm_pgt = { + .unmap = gf100_vmm_pgt_unmap, + .mem = gf100_vmm_pgt_mem, + .dma = gf100_vmm_pgt_dma, + .sgl = gf100_vmm_pgt_sgl, +}; + +void +gf100_vmm_pgd_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgd, u32 pdei) +{ + struct nvkm_vmm_pt *pgt = pgd->pde[pdei]; + struct nvkm_mmu_pt *pd = pgd->pt[0]; + struct nvkm_mmu_pt *pt; + u64 data = 0; + + if ((pt = pgt->pt[0])) { + switch (nvkm_memory_target(pt->memory)) { + case NVKM_MEM_TARGET_VRAM: data |= 1ULL << 0; break; + case NVKM_MEM_TARGET_HOST: data |= 2ULL << 0; + data |= BIT_ULL(35); /* VOL */ + break; + case NVKM_MEM_TARGET_NCOH: data |= 3ULL << 0; break; + default: + WARN_ON(1); + return; + } + data |= pt->addr >> 8; + } + + if ((pt = pgt->pt[1])) { + switch (nvkm_memory_target(pt->memory)) { + case NVKM_MEM_TARGET_VRAM: data |= 1ULL << 32; break; + case NVKM_MEM_TARGET_HOST: data |= 2ULL << 32; + data |= BIT_ULL(34); /* VOL */ + break; + case NVKM_MEM_TARGET_NCOH: data |= 3ULL << 32; break; + default: + WARN_ON(1); + return; + } + data |= pt->addr << 24; + } + + nvkm_kmap(pd->memory); + VMM_WO064(pd, vmm, pdei * 8, data); + nvkm_done(pd->memory); +} + +const struct nvkm_vmm_desc_func +gf100_vmm_pgd = { + .unmap = gf100_vmm_pgt_unmap, + .pde = gf100_vmm_pgd_pde, +}; + +static const struct nvkm_vmm_desc +gf100_vmm_desc_17_12[] = { + { SPT, 15, 8, 0x1000, &gf100_vmm_pgt }, + { PGD, 13, 8, 0x1000, &gf100_vmm_pgd }, + {} +}; + +static const struct nvkm_vmm_desc +gf100_vmm_desc_17_17[] = { + { LPT, 10, 8, 0x1000, &gf100_vmm_pgt }, + { PGD, 13, 8, 0x1000, &gf100_vmm_pgd }, + {} +}; + +static const struct nvkm_vmm_desc +gf100_vmm_desc_16_12[] = { + { SPT, 14, 8, 0x1000, &gf100_vmm_pgt }, + { PGD, 14, 8, 0x1000, &gf100_vmm_pgd }, + {} +}; + +static const struct nvkm_vmm_desc +gf100_vmm_desc_16_16[] = { + { LPT, 10, 8, 0x1000, &gf100_vmm_pgt }, + { PGD, 14, 8, 0x1000, &gf100_vmm_pgd }, + {} +}; + +void +gf100_vmm_flush_(struct nvkm_vmm *vmm, int depth) +{ + struct nvkm_subdev *subdev = &vmm->mmu->subdev; + struct nvkm_device *device = subdev->device; + u32 type = depth << 24; + + type = 0x00000001; /* PAGE_ALL */ + if (atomic_read(&vmm->engref[NVKM_SUBDEV_BAR])) + type |= 0x00000004; /* HUB_ONLY */ + + mutex_lock(&subdev->mutex); + /* Looks like maybe a "free flush slots" counter, the + * faster you write to 0x100cbc to more it decreases. + */ + nvkm_msec(device, 2000, + if (nvkm_rd32(device, 0x100c80) & 0x00ff0000) + break; + ); + + nvkm_wr32(device, 0x100cb8, vmm->pd->pt[0]->addr >> 8); + nvkm_wr32(device, 0x100cbc, 0x80000000 | type); + + /* Wait for flush to be queued? */ + nvkm_msec(device, 2000, + if (nvkm_rd32(device, 0x100c80) & 0x00008000) + break; + ); + mutex_unlock(&subdev->mutex); +} + +void +gf100_vmm_flush(struct nvkm_vmm *vmm, int depth) +{ + gf100_vmm_flush_(vmm, 0); +} + +int +gf100_vmm_valid(struct nvkm_vmm *vmm, void *argv, u32 argc, + struct nvkm_vmm_map *map) +{ + const enum nvkm_memory_target target = nvkm_memory_target(map->memory); + const struct nvkm_vmm_page *page = map->page; + const bool gm20x = page->desc->func->sparse != NULL; + union { + struct gf100_vmm_map_vn vn; + struct gf100_vmm_map_v0 v0; + } *args = argv; + struct nvkm_device *device = vmm->mmu->subdev.device; + struct nvkm_memory *memory = map->memory; + u8 kind, priv, ro, vol; + int kindn, aper, ret = -ENOSYS; + const u8 *kindm; + + map->next = (1 << page->shift) >> 8; + map->type = map->ctag = 0; + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { + vol = !!args->v0.vol; + ro = !!args->v0.ro; + priv = !!args->v0.priv; + kind = args->v0.kind; + } else + if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) { + vol = target == NVKM_MEM_TARGET_HOST; + ro = 0; + priv = 0; + kind = 0x00; + } else { + VMM_DEBUG(vmm, "args"); + return ret; + } + + aper = vmm->func->aper(target); + if (WARN_ON(aper < 0)) + return aper; + + kindm = vmm->mmu->func->kind(vmm->mmu, &kindn); + if (kind >= kindn || kindm[kind] == 0xff) { + VMM_DEBUG(vmm, "kind %02x", kind); + return -EINVAL; + } + + if (kindm[kind] != kind) { + u32 comp = (page->shift == 16 && !gm20x) ? 16 : 17; + u32 tags = ALIGN(nvkm_memory_size(memory), 1 << 17) >> comp; + if (aper != 0 || !(page->type & NVKM_VMM_PAGE_COMP)) { + VMM_DEBUG(vmm, "comp %d %02x", aper, page->type); + return -EINVAL; + } + + ret = nvkm_memory_tags_get(memory, device, tags, + nvkm_ltc_tags_clear, + &map->tags); + if (ret) { + VMM_DEBUG(vmm, "comp %d", ret); + return ret; + } + + if (map->tags->mn) { + u64 tags = map->tags->mn->offset + (map->offset >> 17); + if (page->shift == 17 || !gm20x) { + map->type |= tags << 44; + map->ctag |= 1ULL << 44; + map->next |= 1ULL << 44; + } else { + map->ctag |= tags << 1 | 1; + } + } else { + kind = kindm[kind]; + } + } + + map->type |= BIT(0); + map->type |= (u64)priv << 1; + map->type |= (u64) ro << 2; + map->type |= (u64) vol << 32; + map->type |= (u64)aper << 33; + map->type |= (u64)kind << 36; + return 0; +} + +int +gf100_vmm_aper(enum nvkm_memory_target target) +{ + switch (target) { + case NVKM_MEM_TARGET_VRAM: return 0; + case NVKM_MEM_TARGET_HOST: return 2; + case NVKM_MEM_TARGET_NCOH: return 3; + default: + return -EINVAL; + } +} + +void +gf100_vmm_part(struct nvkm_vmm *vmm, struct nvkm_memory *inst) +{ + nvkm_fo64(inst, 0x0200, 0x00000000, 2); +} + +int +gf100_vmm_join_(struct nvkm_vmm *vmm, struct nvkm_memory *inst, u64 base) +{ + struct nvkm_mmu_pt *pd = vmm->pd->pt[0]; + + switch (nvkm_memory_target(pd->memory)) { + case NVKM_MEM_TARGET_VRAM: base |= 0ULL << 0; break; + case NVKM_MEM_TARGET_HOST: base |= 2ULL << 0; + base |= BIT_ULL(2) /* VOL. */; + break; + case NVKM_MEM_TARGET_NCOH: base |= 3ULL << 0; break; + default: + WARN_ON(1); + return -EINVAL; + } + base |= pd->addr; + + nvkm_kmap(inst); + nvkm_wo64(inst, 0x0200, base); + nvkm_wo64(inst, 0x0208, vmm->limit - 1); + nvkm_done(inst); + return 0; +} + +int +gf100_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst) +{ + return gf100_vmm_join_(vmm, inst, 0); +} + +static const struct nvkm_vmm_func +gf100_vmm_17 = { + .join = gf100_vmm_join, + .part = gf100_vmm_part, + .aper = gf100_vmm_aper, + .valid = gf100_vmm_valid, + .flush = gf100_vmm_flush, + .page = { + { 17, &gf100_vmm_desc_17_17[0], NVKM_VMM_PAGE_xVxC }, + { 12, &gf100_vmm_desc_17_12[0], NVKM_VMM_PAGE_xVHx }, + {} + } +}; + +static const struct nvkm_vmm_func +gf100_vmm_16 = { + .join = gf100_vmm_join, + .part = gf100_vmm_part, + .aper = gf100_vmm_aper, + .valid = gf100_vmm_valid, + .flush = gf100_vmm_flush, + .page = { + { 16, &gf100_vmm_desc_16_16[0], NVKM_VMM_PAGE_xVxC }, + { 12, &gf100_vmm_desc_16_12[0], NVKM_VMM_PAGE_xVHx }, + {} + } +}; + +int +gf100_vmm_new_(const struct nvkm_vmm_func *func_16, + const struct nvkm_vmm_func *func_17, + struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc, + struct lock_class_key *key, const char *name, + struct nvkm_vmm **pvmm) +{ + switch (mmu->subdev.device->fb->page) { + case 16: return nv04_vmm_new_(func_16, mmu, 0, addr, size, + argv, argc, key, name, pvmm); + case 17: return nv04_vmm_new_(func_17, mmu, 0, addr, size, + argv, argc, key, name, pvmm); + default: + WARN_ON(1); + return -EINVAL; + } +} + +int +gf100_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc, + struct lock_class_key *key, const char *name, + struct nvkm_vmm **pvmm) +{ + return gf100_vmm_new_(&gf100_vmm_16, &gf100_vmm_17, mmu, addr, + size, argv, argc, key, name, pvmm); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk104.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk104.c new file mode 100644 index 000000000000..0ebb7bccfcd2 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk104.c @@ -0,0 +1,102 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "vmm.h" + +void +gk104_vmm_lpt_invalid(struct nvkm_vmm *vmm, + struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes) +{ + /* VALID_FALSE + PRIV tells the MMU to ignore corresponding SPTEs. */ + VMM_FO064(pt, vmm, ptei * 8, BIT_ULL(1) /* PRIV. */, ptes); +} + +static const struct nvkm_vmm_desc_func +gk104_vmm_lpt = { + .invalid = gk104_vmm_lpt_invalid, + .unmap = gf100_vmm_pgt_unmap, + .mem = gf100_vmm_pgt_mem, +}; + +const struct nvkm_vmm_desc +gk104_vmm_desc_17_12[] = { + { SPT, 15, 8, 0x1000, &gf100_vmm_pgt }, + { PGD, 13, 8, 0x1000, &gf100_vmm_pgd }, + {} +}; + +const struct nvkm_vmm_desc +gk104_vmm_desc_17_17[] = { + { LPT, 10, 8, 0x1000, &gk104_vmm_lpt }, + { PGD, 13, 8, 0x1000, &gf100_vmm_pgd }, + {} +}; + +const struct nvkm_vmm_desc +gk104_vmm_desc_16_12[] = { + { SPT, 14, 8, 0x1000, &gf100_vmm_pgt }, + { PGD, 14, 8, 0x1000, &gf100_vmm_pgd }, + {} +}; + +const struct nvkm_vmm_desc +gk104_vmm_desc_16_16[] = { + { LPT, 10, 8, 0x1000, &gk104_vmm_lpt }, + { PGD, 14, 8, 0x1000, &gf100_vmm_pgd }, + {} +}; + +static const struct nvkm_vmm_func +gk104_vmm_17 = { + .join = gf100_vmm_join, + .part = gf100_vmm_part, + .aper = gf100_vmm_aper, + .valid = gf100_vmm_valid, + .flush = gf100_vmm_flush, + .page = { + { 17, &gk104_vmm_desc_17_17[0], NVKM_VMM_PAGE_xVxC }, + { 12, &gk104_vmm_desc_17_12[0], NVKM_VMM_PAGE_xVHx }, + {} + } +}; + +static const struct nvkm_vmm_func +gk104_vmm_16 = { + .join = gf100_vmm_join, + .part = gf100_vmm_part, + .aper = gf100_vmm_aper, + .valid = gf100_vmm_valid, + .flush = gf100_vmm_flush, + .page = { + { 16, &gk104_vmm_desc_16_16[0], NVKM_VMM_PAGE_xVxC }, + { 12, &gk104_vmm_desc_16_12[0], NVKM_VMM_PAGE_xVHx }, + {} + } +}; + +int +gk104_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc, + struct lock_class_key *key, const char *name, + struct nvkm_vmm **pvmm) +{ + return gf100_vmm_new_(&gk104_vmm_16, &gk104_vmm_17, mmu, addr, + size, argv, argc, key, name, pvmm); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk20a.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk20a.c new file mode 100644 index 000000000000..8086994a0446 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk20a.c @@ -0,0 +1,71 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "vmm.h" + +#include <core/memory.h> + +int +gk20a_vmm_aper(enum nvkm_memory_target target) +{ + switch (target) { + case NVKM_MEM_TARGET_NCOH: return 0; + default: + return -EINVAL; + } +} + +static const struct nvkm_vmm_func +gk20a_vmm_17 = { + .join = gf100_vmm_join, + .part = gf100_vmm_part, + .aper = gf100_vmm_aper, + .valid = gf100_vmm_valid, + .flush = gf100_vmm_flush, + .page = { + { 17, &gk104_vmm_desc_17_17[0], NVKM_VMM_PAGE_xxHC }, + { 12, &gk104_vmm_desc_17_12[0], NVKM_VMM_PAGE_xxHx }, + {} + } +}; + +static const struct nvkm_vmm_func +gk20a_vmm_16 = { + .join = gf100_vmm_join, + .part = gf100_vmm_part, + .aper = gf100_vmm_aper, + .valid = gf100_vmm_valid, + .flush = gf100_vmm_flush, + .page = { + { 16, &gk104_vmm_desc_16_16[0], NVKM_VMM_PAGE_xxHC }, + { 12, &gk104_vmm_desc_16_12[0], NVKM_VMM_PAGE_xxHx }, + {} + } +}; + +int +gk20a_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc, + struct lock_class_key *key, const char *name, + struct nvkm_vmm **pvmm) +{ + return gf100_vmm_new_(&gk20a_vmm_16, &gk20a_vmm_17, mmu, addr, + size, argv, argc, key, name, pvmm); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm200.c new file mode 100644 index 000000000000..a1676a4644fe --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm200.c @@ -0,0 +1,185 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "vmm.h" + +#include <nvif/ifb00d.h> +#include <nvif/unpack.h> + +static void +gm200_vmm_pgt_sparse(struct nvkm_vmm *vmm, + struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes) +{ + /* VALID_FALSE + VOL tells the MMU to treat the PTE as sparse. */ + VMM_FO064(pt, vmm, ptei * 8, BIT_ULL(32) /* VOL. */, ptes); +} + +static const struct nvkm_vmm_desc_func +gm200_vmm_spt = { + .unmap = gf100_vmm_pgt_unmap, + .sparse = gm200_vmm_pgt_sparse, + .mem = gf100_vmm_pgt_mem, + .dma = gf100_vmm_pgt_dma, + .sgl = gf100_vmm_pgt_sgl, +}; + +static const struct nvkm_vmm_desc_func +gm200_vmm_lpt = { + .invalid = gk104_vmm_lpt_invalid, + .unmap = gf100_vmm_pgt_unmap, + .sparse = gm200_vmm_pgt_sparse, + .mem = gf100_vmm_pgt_mem, +}; + +static void +gm200_vmm_pgd_sparse(struct nvkm_vmm *vmm, + struct nvkm_mmu_pt *pt, u32 pdei, u32 pdes) +{ + /* VALID_FALSE + VOL_BIG tells the MMU to treat the PDE as sparse. */ + VMM_FO064(pt, vmm, pdei * 8, BIT_ULL(35) /* VOL_BIG. */, pdes); +} + +static const struct nvkm_vmm_desc_func +gm200_vmm_pgd = { + .unmap = gf100_vmm_pgt_unmap, + .sparse = gm200_vmm_pgd_sparse, + .pde = gf100_vmm_pgd_pde, +}; + +const struct nvkm_vmm_desc +gm200_vmm_desc_17_12[] = { + { SPT, 15, 8, 0x1000, &gm200_vmm_spt }, + { PGD, 13, 8, 0x1000, &gm200_vmm_pgd }, + {} +}; + +const struct nvkm_vmm_desc +gm200_vmm_desc_17_17[] = { + { LPT, 10, 8, 0x1000, &gm200_vmm_lpt }, + { PGD, 13, 8, 0x1000, &gm200_vmm_pgd }, + {} +}; + +const struct nvkm_vmm_desc +gm200_vmm_desc_16_12[] = { + { SPT, 14, 8, 0x1000, &gm200_vmm_spt }, + { PGD, 14, 8, 0x1000, &gm200_vmm_pgd }, + {} +}; + +const struct nvkm_vmm_desc +gm200_vmm_desc_16_16[] = { + { LPT, 10, 8, 0x1000, &gm200_vmm_lpt }, + { PGD, 14, 8, 0x1000, &gm200_vmm_pgd }, + {} +}; + +int +gm200_vmm_join_(struct nvkm_vmm *vmm, struct nvkm_memory *inst, u64 base) +{ + if (vmm->func->page[1].shift == 16) + base |= BIT_ULL(11); + return gf100_vmm_join_(vmm, inst, base); +} + +int +gm200_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst) +{ + return gm200_vmm_join_(vmm, inst, 0); +} + +static const struct nvkm_vmm_func +gm200_vmm_17 = { + .join = gm200_vmm_join, + .part = gf100_vmm_part, + .aper = gf100_vmm_aper, + .valid = gf100_vmm_valid, + .flush = gf100_vmm_flush, + .page = { + { 27, &gm200_vmm_desc_17_17[1], NVKM_VMM_PAGE_Sxxx }, + { 17, &gm200_vmm_desc_17_17[0], NVKM_VMM_PAGE_SVxC }, + { 12, &gm200_vmm_desc_17_12[0], NVKM_VMM_PAGE_SVHx }, + {} + } +}; + +static const struct nvkm_vmm_func +gm200_vmm_16 = { + .join = gm200_vmm_join, + .part = gf100_vmm_part, + .aper = gf100_vmm_aper, + .valid = gf100_vmm_valid, + .flush = gf100_vmm_flush, + .page = { + { 27, &gm200_vmm_desc_16_16[1], NVKM_VMM_PAGE_Sxxx }, + { 16, &gm200_vmm_desc_16_16[0], NVKM_VMM_PAGE_SVxC }, + { 12, &gm200_vmm_desc_16_12[0], NVKM_VMM_PAGE_SVHx }, + {} + } +}; + +int +gm200_vmm_new_(const struct nvkm_vmm_func *func_16, + const struct nvkm_vmm_func *func_17, + struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc, + struct lock_class_key *key, const char *name, + struct nvkm_vmm **pvmm) +{ + const struct nvkm_vmm_func *func; + union { + struct gm200_vmm_vn vn; + struct gm200_vmm_v0 v0; + } *args = argv; + int ret = -ENOSYS; + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { + switch (args->v0.bigpage) { + case 16: func = func_16; break; + case 17: func = func_17; break; + default: + return -EINVAL; + } + } else + if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) { + func = func_17; + } else + return ret; + + return nvkm_vmm_new_(func, mmu, 0, addr, size, key, name, pvmm); +} + +int +gm200_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc, + struct lock_class_key *key, const char *name, + struct nvkm_vmm **pvmm) +{ + return gm200_vmm_new_(&gm200_vmm_16, &gm200_vmm_17, mmu, addr, + size, argv, argc, key, name, pvmm); +} + +int +gm200_vmm_new_fixed(struct nvkm_mmu *mmu, u64 addr, u64 size, + void *argv, u32 argc, struct lock_class_key *key, + const char *name, struct nvkm_vmm **pvmm) +{ + return gf100_vmm_new_(&gm200_vmm_16, &gm200_vmm_17, mmu, addr, + size, argv, argc, key, name, pvmm); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm20b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm20b.c new file mode 100644 index 000000000000..64d4b6cff8dd --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm20b.c @@ -0,0 +1,70 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "vmm.h" + +static const struct nvkm_vmm_func +gm20b_vmm_17 = { + .join = gm200_vmm_join, + .part = gf100_vmm_part, + .aper = gk20a_vmm_aper, + .valid = gf100_vmm_valid, + .flush = gf100_vmm_flush, + .page = { + { 27, &gm200_vmm_desc_17_17[1], NVKM_VMM_PAGE_Sxxx }, + { 17, &gm200_vmm_desc_17_17[0], NVKM_VMM_PAGE_SxHC }, + { 12, &gm200_vmm_desc_17_12[0], NVKM_VMM_PAGE_SxHx }, + {} + } +}; + +static const struct nvkm_vmm_func +gm20b_vmm_16 = { + .join = gm200_vmm_join, + .part = gf100_vmm_part, + .aper = gk20a_vmm_aper, + .valid = gf100_vmm_valid, + .flush = gf100_vmm_flush, + .page = { + { 27, &gm200_vmm_desc_16_16[1], NVKM_VMM_PAGE_Sxxx }, + { 16, &gm200_vmm_desc_16_16[0], NVKM_VMM_PAGE_SxHC }, + { 12, &gm200_vmm_desc_16_12[0], NVKM_VMM_PAGE_SxHx }, + {} + } +}; + +int +gm20b_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc, + struct lock_class_key *key, const char *name, + struct nvkm_vmm **pvmm) +{ + return gm200_vmm_new_(&gm20b_vmm_16, &gm20b_vmm_17, mmu, addr, + size, argv, argc, key, name, pvmm); +} + +int +gm20b_vmm_new_fixed(struct nvkm_mmu *mmu, u64 addr, u64 size, + void *argv, u32 argc, struct lock_class_key *key, + const char *name, struct nvkm_vmm **pvmm) +{ + return gf100_vmm_new_(&gm20b_vmm_16, &gm20b_vmm_17, mmu, addr, + size, argv, argc, key, name, pvmm); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgp100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgp100.c new file mode 100644 index 000000000000..059fafe0e771 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgp100.c @@ -0,0 +1,347 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "vmm.h" + +#include <subdev/fb.h> +#include <subdev/ltc.h> + +#include <nvif/ifc00d.h> +#include <nvif/unpack.h> + +static inline void +gp100_vmm_pgt_pte(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map, u64 addr) +{ + u64 data = (addr >> 4) | map->type; + + map->type += ptes * map->ctag; + + while (ptes--) { + VMM_WO064(pt, vmm, ptei++ * 8, data); + data += map->next; + } +} + +static void +gp100_vmm_pgt_sgl(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map) +{ + VMM_MAP_ITER_SGL(vmm, pt, ptei, ptes, map, gp100_vmm_pgt_pte); +} + +static void +gp100_vmm_pgt_dma(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map) +{ + if (map->page->shift == PAGE_SHIFT) { + VMM_SPAM(vmm, "DMAA %08x %08x PTE(s)", ptei, ptes); + nvkm_kmap(pt->memory); + while (ptes--) { + const u64 data = (*map->dma++ >> 4) | map->type; + VMM_WO064(pt, vmm, ptei++ * 8, data); + map->type += map->ctag; + } + nvkm_done(pt->memory); + return; + } + + VMM_MAP_ITER_DMA(vmm, pt, ptei, ptes, map, gp100_vmm_pgt_pte); +} + +static void +gp100_vmm_pgt_mem(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map) +{ + VMM_MAP_ITER_MEM(vmm, pt, ptei, ptes, map, gp100_vmm_pgt_pte); +} + +static void +gp100_vmm_pgt_sparse(struct nvkm_vmm *vmm, + struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes) +{ + /* VALID_FALSE + VOL tells the MMU to treat the PTE as sparse. */ + VMM_FO064(pt, vmm, ptei * 8, BIT_ULL(3) /* VOL. */, ptes); +} + +static const struct nvkm_vmm_desc_func +gp100_vmm_desc_spt = { + .unmap = gf100_vmm_pgt_unmap, + .sparse = gp100_vmm_pgt_sparse, + .mem = gp100_vmm_pgt_mem, + .dma = gp100_vmm_pgt_dma, + .sgl = gp100_vmm_pgt_sgl, +}; + +static void +gp100_vmm_lpt_invalid(struct nvkm_vmm *vmm, + struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes) +{ + /* VALID_FALSE + PRIV tells the MMU to ignore corresponding SPTEs. */ + VMM_FO064(pt, vmm, ptei * 8, BIT_ULL(5) /* PRIV. */, ptes); +} + +static const struct nvkm_vmm_desc_func +gp100_vmm_desc_lpt = { + .invalid = gp100_vmm_lpt_invalid, + .unmap = gf100_vmm_pgt_unmap, + .sparse = gp100_vmm_pgt_sparse, + .mem = gp100_vmm_pgt_mem, +}; + +static inline void +gp100_vmm_pd0_pte(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map, u64 addr) +{ + u64 data = (addr >> 4) | map->type; + + map->type += ptes * map->ctag; + + while (ptes--) { + VMM_WO128(pt, vmm, ptei++ * 0x10, data, 0ULL); + data += map->next; + } +} + +static void +gp100_vmm_pd0_mem(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map) +{ + VMM_MAP_ITER_MEM(vmm, pt, ptei, ptes, map, gp100_vmm_pd0_pte); +} + +static inline bool +gp100_vmm_pde(struct nvkm_mmu_pt *pt, u64 *data) +{ + switch (nvkm_memory_target(pt->memory)) { + case NVKM_MEM_TARGET_VRAM: *data |= 1ULL << 1; break; + case NVKM_MEM_TARGET_HOST: *data |= 2ULL << 1; + *data |= BIT_ULL(3); /* VOL. */ + break; + case NVKM_MEM_TARGET_NCOH: *data |= 3ULL << 1; break; + default: + WARN_ON(1); + return false; + } + *data |= pt->addr >> 4; + return true; +} + +static void +gp100_vmm_pd0_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgd, u32 pdei) +{ + struct nvkm_vmm_pt *pgt = pgd->pde[pdei]; + struct nvkm_mmu_pt *pd = pgd->pt[0]; + u64 data[2] = {}; + + if (pgt->pt[0] && !gp100_vmm_pde(pgt->pt[0], &data[0])) + return; + if (pgt->pt[1] && !gp100_vmm_pde(pgt->pt[1], &data[1])) + return; + + nvkm_kmap(pd->memory); + VMM_WO128(pd, vmm, pdei * 0x10, data[0], data[1]); + nvkm_done(pd->memory); +} + +static void +gp100_vmm_pd0_sparse(struct nvkm_vmm *vmm, + struct nvkm_mmu_pt *pt, u32 pdei, u32 pdes) +{ + /* VALID_FALSE + VOL_BIG tells the MMU to treat the PDE as sparse. */ + VMM_FO128(pt, vmm, pdei * 0x10, BIT_ULL(3) /* VOL_BIG. */, 0ULL, pdes); +} + +static void +gp100_vmm_pd0_unmap(struct nvkm_vmm *vmm, + struct nvkm_mmu_pt *pt, u32 pdei, u32 pdes) +{ + VMM_FO128(pt, vmm, pdei * 0x10, 0ULL, 0ULL, pdes); +} + +static const struct nvkm_vmm_desc_func +gp100_vmm_desc_pd0 = { + .unmap = gp100_vmm_pd0_unmap, + .sparse = gp100_vmm_pd0_sparse, + .pde = gp100_vmm_pd0_pde, + .mem = gp100_vmm_pd0_mem, +}; + +static void +gp100_vmm_pd1_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgd, u32 pdei) +{ + struct nvkm_vmm_pt *pgt = pgd->pde[pdei]; + struct nvkm_mmu_pt *pd = pgd->pt[0]; + u64 data = 0; + + if (!gp100_vmm_pde(pgt->pt[0], &data)) + return; + + nvkm_kmap(pd->memory); + VMM_WO064(pd, vmm, pdei * 8, data); + nvkm_done(pd->memory); +} + +static const struct nvkm_vmm_desc_func +gp100_vmm_desc_pd1 = { + .unmap = gf100_vmm_pgt_unmap, + .sparse = gp100_vmm_pgt_sparse, + .pde = gp100_vmm_pd1_pde, +}; + +const struct nvkm_vmm_desc +gp100_vmm_desc_16[] = { + { LPT, 5, 8, 0x0100, &gp100_vmm_desc_lpt }, + { PGD, 8, 16, 0x1000, &gp100_vmm_desc_pd0 }, + { PGD, 9, 8, 0x1000, &gp100_vmm_desc_pd1 }, + { PGD, 9, 8, 0x1000, &gp100_vmm_desc_pd1 }, + { PGD, 2, 8, 0x1000, &gp100_vmm_desc_pd1 }, + {} +}; + +const struct nvkm_vmm_desc +gp100_vmm_desc_12[] = { + { SPT, 9, 8, 0x1000, &gp100_vmm_desc_spt }, + { PGD, 8, 16, 0x1000, &gp100_vmm_desc_pd0 }, + { PGD, 9, 8, 0x1000, &gp100_vmm_desc_pd1 }, + { PGD, 9, 8, 0x1000, &gp100_vmm_desc_pd1 }, + { PGD, 2, 8, 0x1000, &gp100_vmm_desc_pd1 }, + {} +}; + +int +gp100_vmm_valid(struct nvkm_vmm *vmm, void *argv, u32 argc, + struct nvkm_vmm_map *map) +{ + const enum nvkm_memory_target target = nvkm_memory_target(map->memory); + const struct nvkm_vmm_page *page = map->page; + union { + struct gp100_vmm_map_vn vn; + struct gp100_vmm_map_v0 v0; + } *args = argv; + struct nvkm_device *device = vmm->mmu->subdev.device; + struct nvkm_memory *memory = map->memory; + u8 kind, priv, ro, vol; + int kindn, aper, ret = -ENOSYS; + const u8 *kindm; + + map->next = (1ULL << page->shift) >> 4; + map->type = 0; + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { + vol = !!args->v0.vol; + ro = !!args->v0.ro; + priv = !!args->v0.priv; + kind = args->v0.kind; + } else + if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) { + vol = target == NVKM_MEM_TARGET_HOST; + ro = 0; + priv = 0; + kind = 0x00; + } else { + VMM_DEBUG(vmm, "args"); + return ret; + } + + aper = vmm->func->aper(target); + if (WARN_ON(aper < 0)) + return aper; + + kindm = vmm->mmu->func->kind(vmm->mmu, &kindn); + if (kind >= kindn || kindm[kind] == 0xff) { + VMM_DEBUG(vmm, "kind %02x", kind); + return -EINVAL; + } + + if (kindm[kind] != kind) { + u64 tags = nvkm_memory_size(memory) >> 16; + if (aper != 0 || !(page->type & NVKM_VMM_PAGE_COMP)) { + VMM_DEBUG(vmm, "comp %d %02x", aper, page->type); + return -EINVAL; + } + + ret = nvkm_memory_tags_get(memory, device, tags, + nvkm_ltc_tags_clear, + &map->tags); + if (ret) { + VMM_DEBUG(vmm, "comp %d", ret); + return ret; + } + + if (map->tags->mn) { + tags = map->tags->mn->offset + (map->offset >> 16); + map->ctag |= ((1ULL << page->shift) >> 16) << 36; + map->type |= tags << 36; + map->next |= map->ctag; + } else { + kind = kindm[kind]; + } + } + + map->type |= BIT(0); + map->type |= (u64)aper << 1; + map->type |= (u64) vol << 3; + map->type |= (u64)priv << 5; + map->type |= (u64) ro << 6; + map->type |= (u64)kind << 56; + return 0; +} + +void +gp100_vmm_flush(struct nvkm_vmm *vmm, int depth) +{ + gf100_vmm_flush_(vmm, 5 /* CACHE_LEVEL_UP_TO_PDE3 */ - depth); +} + +int +gp100_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst) +{ + const u64 base = BIT_ULL(10) /* VER2 */ | BIT_ULL(11); /* 64KiB */ + return gf100_vmm_join_(vmm, inst, base); +} + +static const struct nvkm_vmm_func +gp100_vmm = { + .join = gp100_vmm_join, + .part = gf100_vmm_part, + .aper = gf100_vmm_aper, + .valid = gp100_vmm_valid, + .flush = gp100_vmm_flush, + .page = { + { 47, &gp100_vmm_desc_16[4], NVKM_VMM_PAGE_Sxxx }, + { 38, &gp100_vmm_desc_16[3], NVKM_VMM_PAGE_Sxxx }, + { 29, &gp100_vmm_desc_16[2], NVKM_VMM_PAGE_Sxxx }, + { 21, &gp100_vmm_desc_16[1], NVKM_VMM_PAGE_SVxC }, + { 16, &gp100_vmm_desc_16[0], NVKM_VMM_PAGE_SVxC }, + { 12, &gp100_vmm_desc_12[0], NVKM_VMM_PAGE_SVHx }, + {} + } +}; + +int +gp100_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc, + struct lock_class_key *key, const char *name, + struct nvkm_vmm **pvmm) +{ + return nv04_vmm_new_(&gp100_vmm, mmu, 0, addr, size, + argv, argc, key, name, pvmm); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgp10b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgp10b.c new file mode 100644 index 000000000000..3dcc6bddb32f --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgp10b.c @@ -0,0 +1,49 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "vmm.h" + +static const struct nvkm_vmm_func +gp10b_vmm = { + .join = gp100_vmm_join, + .part = gf100_vmm_part, + .aper = gk20a_vmm_aper, + .valid = gp100_vmm_valid, + .flush = gp100_vmm_flush, + .page = { + { 47, &gp100_vmm_desc_16[4], NVKM_VMM_PAGE_Sxxx }, + { 38, &gp100_vmm_desc_16[3], NVKM_VMM_PAGE_Sxxx }, + { 29, &gp100_vmm_desc_16[2], NVKM_VMM_PAGE_Sxxx }, + { 21, &gp100_vmm_desc_16[1], NVKM_VMM_PAGE_SxHC }, + { 16, &gp100_vmm_desc_16[0], NVKM_VMM_PAGE_SxHC }, + { 12, &gp100_vmm_desc_12[0], NVKM_VMM_PAGE_SxHx }, + {} + } +}; + +int +gp10b_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc, + struct lock_class_key *key, const char *name, + struct nvkm_vmm **pvmm) +{ + return nv04_vmm_new_(&gp10b_vmm, mmu, 0, addr, size, + argv, argc, key, name, pvmm); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv04.c new file mode 100644 index 000000000000..0cab1ffc9f64 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv04.c @@ -0,0 +1,140 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "vmm.h" + +#include <nvif/if000d.h> +#include <nvif/unpack.h> + +static inline void +nv04_vmm_pgt_pte(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map, u64 addr) +{ + u32 data = addr | 0x00000003; /* PRESENT, RW. */ + while (ptes--) { + VMM_WO032(pt, vmm, 8 + ptei++ * 4, data); + data += 0x00001000; + } +} + +static void +nv04_vmm_pgt_sgl(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map) +{ + VMM_MAP_ITER_SGL(vmm, pt, ptei, ptes, map, nv04_vmm_pgt_pte); +} + +static void +nv04_vmm_pgt_dma(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map) +{ +#if PAGE_SHIFT == 12 + nvkm_kmap(pt->memory); + while (ptes--) + VMM_WO032(pt, vmm, 8 + (ptei++ * 4), *map->dma++ | 0x00000003); + nvkm_done(pt->memory); +#else + VMM_MAP_ITER_DMA(vmm, pt, ptei, ptes, map, nv04_vmm_pgt_pte); +#endif +} + +static void +nv04_vmm_pgt_unmap(struct nvkm_vmm *vmm, + struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes) +{ + VMM_FO032(pt, vmm, 8 + (ptei * 4), 0, ptes); +} + +static const struct nvkm_vmm_desc_func +nv04_vmm_desc_pgt = { + .unmap = nv04_vmm_pgt_unmap, + .dma = nv04_vmm_pgt_dma, + .sgl = nv04_vmm_pgt_sgl, +}; + +static const struct nvkm_vmm_desc +nv04_vmm_desc_12[] = { + { PGT, 15, 4, 0x1000, &nv04_vmm_desc_pgt }, + {} +}; + +int +nv04_vmm_valid(struct nvkm_vmm *vmm, void *argv, u32 argc, + struct nvkm_vmm_map *map) +{ + union { + struct nv04_vmm_map_vn vn; + } *args = argv; + int ret = -ENOSYS; + if ((ret = nvif_unvers(ret, &argv, &argc, args->vn))) + VMM_DEBUG(vmm, "args"); + return ret; +} + +static const struct nvkm_vmm_func +nv04_vmm = { + .valid = nv04_vmm_valid, + .page = { + { 12, &nv04_vmm_desc_12[0], NVKM_VMM_PAGE_HOST }, + {} + } +}; + +int +nv04_vmm_new_(const struct nvkm_vmm_func *func, struct nvkm_mmu *mmu, + u32 pd_header, u64 addr, u64 size, void *argv, u32 argc, + struct lock_class_key *key, const char *name, + struct nvkm_vmm **pvmm) +{ + union { + struct nv04_vmm_vn vn; + } *args = argv; + int ret; + + ret = nvkm_vmm_new_(func, mmu, pd_header, addr, size, key, name, pvmm); + if (ret) + return ret; + + return nvif_unvers(-ENOSYS, &argv, &argc, args->vn); +} + +int +nv04_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc, + struct lock_class_key *key, const char *name, + struct nvkm_vmm **pvmm) +{ + struct nvkm_memory *mem; + struct nvkm_vmm *vmm; + int ret; + + ret = nv04_vmm_new_(&nv04_vmm, mmu, 8, addr, size, + argv, argc, key, name, &vmm); + *pvmm = vmm; + if (ret) + return ret; + + mem = vmm->pd->pt[0]->memory; + nvkm_kmap(mem); + nvkm_wo32(mem, 0x00000, 0x0002103d); /* PCI, RW, PT, !LN */ + nvkm_wo32(mem, 0x00004, vmm->limit - 1); + nvkm_done(mem); + return 0; +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv41.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv41.c new file mode 100644 index 000000000000..b595f130e573 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv41.c @@ -0,0 +1,113 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "vmm.h" + +#include <subdev/timer.h> + +static void +nv41_vmm_pgt_pte(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map, u64 addr) +{ + u32 data = (addr >> 7) | 0x00000001; /* VALID. */ + while (ptes--) { + VMM_WO032(pt, vmm, ptei++ * 4, data); + data += 0x00000020; + } +} + +static void +nv41_vmm_pgt_sgl(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map) +{ + VMM_MAP_ITER_SGL(vmm, pt, ptei, ptes, map, nv41_vmm_pgt_pte); +} + +static void +nv41_vmm_pgt_dma(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map) +{ +#if PAGE_SHIFT == 12 + nvkm_kmap(pt->memory); + while (ptes--) { + const u32 data = (*map->dma++ >> 7) | 0x00000001; + VMM_WO032(pt, vmm, ptei++ * 4, data); + } + nvkm_done(pt->memory); +#else + VMM_MAP_ITER_DMA(vmm, pt, ptei, ptes, map, nv41_vmm_pgt_pte); +#endif +} + +static void +nv41_vmm_pgt_unmap(struct nvkm_vmm *vmm, + struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes) +{ + VMM_FO032(pt, vmm, ptei * 4, 0, ptes); +} + +static const struct nvkm_vmm_desc_func +nv41_vmm_desc_pgt = { + .unmap = nv41_vmm_pgt_unmap, + .dma = nv41_vmm_pgt_dma, + .sgl = nv41_vmm_pgt_sgl, +}; + +static const struct nvkm_vmm_desc +nv41_vmm_desc_12[] = { + { PGT, 17, 4, 0x1000, &nv41_vmm_desc_pgt }, + {} +}; + +static void +nv41_vmm_flush(struct nvkm_vmm *vmm, int level) +{ + struct nvkm_subdev *subdev = &vmm->mmu->subdev; + struct nvkm_device *device = subdev->device; + + mutex_lock(&subdev->mutex); + nvkm_wr32(device, 0x100810, 0x00000022); + nvkm_msec(device, 2000, + if (nvkm_rd32(device, 0x100810) & 0x00000020) + break; + ); + nvkm_wr32(device, 0x100810, 0x00000000); + mutex_unlock(&subdev->mutex); +} + +static const struct nvkm_vmm_func +nv41_vmm = { + .valid = nv04_vmm_valid, + .flush = nv41_vmm_flush, + .page = { + { 12, &nv41_vmm_desc_12[0], NVKM_VMM_PAGE_HOST }, + {} + } +}; + +int +nv41_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc, + struct lock_class_key *key, const char *name, + struct nvkm_vmm **pvmm) +{ + return nv04_vmm_new_(&nv41_vmm, mmu, 0, addr, size, + argv, argc, key, name, pvmm); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv44.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv44.c new file mode 100644 index 000000000000..b834e4352334 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv44.c @@ -0,0 +1,230 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "vmm.h" + +#include <subdev/timer.h> + +static void +nv44_vmm_pgt_fill(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + dma_addr_t *list, u32 ptei, u32 ptes) +{ + u32 pteo = (ptei << 2) & ~0x0000000f; + u32 tmp[4]; + + tmp[0] = nvkm_ro32(pt->memory, pteo + 0x0); + tmp[1] = nvkm_ro32(pt->memory, pteo + 0x4); + tmp[2] = nvkm_ro32(pt->memory, pteo + 0x8); + tmp[3] = nvkm_ro32(pt->memory, pteo + 0xc); + + while (ptes--) { + u32 addr = (list ? *list++ : vmm->null) >> 12; + switch (ptei++ & 0x3) { + case 0: + tmp[0] &= ~0x07ffffff; + tmp[0] |= addr; + break; + case 1: + tmp[0] &= ~0xf8000000; + tmp[0] |= addr << 27; + tmp[1] &= ~0x003fffff; + tmp[1] |= addr >> 5; + break; + case 2: + tmp[1] &= ~0xffc00000; + tmp[1] |= addr << 22; + tmp[2] &= ~0x0001ffff; + tmp[2] |= addr >> 10; + break; + case 3: + tmp[2] &= ~0xfffe0000; + tmp[2] |= addr << 17; + tmp[3] &= ~0x00000fff; + tmp[3] |= addr >> 15; + break; + } + } + + VMM_WO032(pt, vmm, pteo + 0x0, tmp[0]); + VMM_WO032(pt, vmm, pteo + 0x4, tmp[1]); + VMM_WO032(pt, vmm, pteo + 0x8, tmp[2]); + VMM_WO032(pt, vmm, pteo + 0xc, tmp[3] | 0x40000000); +} + +static void +nv44_vmm_pgt_pte(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map, u64 addr) +{ + dma_addr_t tmp[4], i; + + if (ptei & 3) { + const u32 pten = min(ptes, 4 - (ptei & 3)); + for (i = 0; i < pten; i++, addr += 0x1000) + tmp[i] = addr; + nv44_vmm_pgt_fill(vmm, pt, tmp, ptei, pten); + ptei += pten; + ptes -= pten; + } + + while (ptes >= 4) { + for (i = 0; i < 4; i++, addr += 0x1000) + tmp[i] = addr >> 12; + VMM_WO032(pt, vmm, ptei++ * 4, tmp[0] >> 0 | tmp[1] << 27); + VMM_WO032(pt, vmm, ptei++ * 4, tmp[1] >> 5 | tmp[2] << 22); + VMM_WO032(pt, vmm, ptei++ * 4, tmp[2] >> 10 | tmp[3] << 17); + VMM_WO032(pt, vmm, ptei++ * 4, tmp[3] >> 15 | 0x40000000); + ptes -= 4; + } + + if (ptes) { + for (i = 0; i < ptes; i++, addr += 0x1000) + tmp[i] = addr; + nv44_vmm_pgt_fill(vmm, pt, tmp, ptei, ptes); + } +} + +static void +nv44_vmm_pgt_sgl(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map) +{ + VMM_MAP_ITER_SGL(vmm, pt, ptei, ptes, map, nv44_vmm_pgt_pte); +} + +static void +nv44_vmm_pgt_dma(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map) +{ +#if PAGE_SHIFT == 12 + nvkm_kmap(pt->memory); + if (ptei & 3) { + const u32 pten = min(ptes, 4 - (ptei & 3)); + nv44_vmm_pgt_fill(vmm, pt, map->dma, ptei, pten); + ptei += pten; + ptes -= pten; + map->dma += pten; + } + + while (ptes >= 4) { + u32 tmp[4], i; + for (i = 0; i < 4; i++) + tmp[i] = *map->dma++ >> 12; + VMM_WO032(pt, vmm, ptei++ * 4, tmp[0] >> 0 | tmp[1] << 27); + VMM_WO032(pt, vmm, ptei++ * 4, tmp[1] >> 5 | tmp[2] << 22); + VMM_WO032(pt, vmm, ptei++ * 4, tmp[2] >> 10 | tmp[3] << 17); + VMM_WO032(pt, vmm, ptei++ * 4, tmp[3] >> 15 | 0x40000000); + ptes -= 4; + } + + if (ptes) { + nv44_vmm_pgt_fill(vmm, pt, map->dma, ptei, ptes); + map->dma += ptes; + } + nvkm_done(pt->memory); +#else + VMM_MAP_ITER_DMA(vmm, pt, ptei, ptes, map, nv44_vmm_pgt_pte); +#endif +} + +static void +nv44_vmm_pgt_unmap(struct nvkm_vmm *vmm, + struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes) +{ + nvkm_kmap(pt->memory); + if (ptei & 3) { + const u32 pten = min(ptes, 4 - (ptei & 3)); + nv44_vmm_pgt_fill(vmm, pt, NULL, ptei, pten); + ptei += pten; + ptes -= pten; + } + + while (ptes > 4) { + VMM_WO032(pt, vmm, ptei++ * 4, 0x00000000); + VMM_WO032(pt, vmm, ptei++ * 4, 0x00000000); + VMM_WO032(pt, vmm, ptei++ * 4, 0x00000000); + VMM_WO032(pt, vmm, ptei++ * 4, 0x00000000); + ptes -= 4; + } + + if (ptes) + nv44_vmm_pgt_fill(vmm, pt, NULL, ptei, ptes); + nvkm_done(pt->memory); +} + +static const struct nvkm_vmm_desc_func +nv44_vmm_desc_pgt = { + .unmap = nv44_vmm_pgt_unmap, + .dma = nv44_vmm_pgt_dma, + .sgl = nv44_vmm_pgt_sgl, +}; + +static const struct nvkm_vmm_desc +nv44_vmm_desc_12[] = { + { PGT, 17, 4, 0x80000, &nv44_vmm_desc_pgt }, + {} +}; + +static void +nv44_vmm_flush(struct nvkm_vmm *vmm, int level) +{ + struct nvkm_device *device = vmm->mmu->subdev.device; + nvkm_wr32(device, 0x100814, vmm->limit - 4096); + nvkm_wr32(device, 0x100808, 0x000000020); + nvkm_msec(device, 2000, + if (nvkm_rd32(device, 0x100808) & 0x00000001) + break; + ); + nvkm_wr32(device, 0x100808, 0x00000000); +} + +static const struct nvkm_vmm_func +nv44_vmm = { + .valid = nv04_vmm_valid, + .flush = nv44_vmm_flush, + .page = { + { 12, &nv44_vmm_desc_12[0], NVKM_VMM_PAGE_HOST }, + {} + } +}; + +int +nv44_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc, + struct lock_class_key *key, const char *name, + struct nvkm_vmm **pvmm) +{ + struct nvkm_subdev *subdev = &mmu->subdev; + struct nvkm_vmm *vmm; + int ret; + + ret = nv04_vmm_new_(&nv44_vmm, mmu, 0, addr, size, + argv, argc, key, name, &vmm); + *pvmm = vmm; + if (ret) + return ret; + + vmm->nullp = dma_alloc_coherent(subdev->device->dev, 16 * 1024, + &vmm->null, GFP_KERNEL); + if (!vmm->nullp) { + nvkm_warn(subdev, "unable to allocate dummy pages\n"); + vmm->null = 0; + } + + return 0; +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv50.c new file mode 100644 index 000000000000..863a2edd9861 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv50.c @@ -0,0 +1,385 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "vmm.h" + +#include <subdev/fb.h> +#include <subdev/timer.h> +#include <engine/gr.h> + +#include <nvif/if500d.h> +#include <nvif/unpack.h> + +static inline void +nv50_vmm_pgt_pte(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map, u64 addr) +{ + u64 next = addr | map->type, data; + u32 pten; + int log2blk; + + map->type += ptes * map->ctag; + + while (ptes) { + for (log2blk = 7; log2blk >= 0; log2blk--) { + pten = 1 << log2blk; + if (ptes >= pten && IS_ALIGNED(ptei, pten)) + break; + } + + data = next | (log2blk << 7); + next += pten * map->next; + ptes -= pten; + + while (pten--) + VMM_WO064(pt, vmm, ptei++ * 8, data); + } +} + +static void +nv50_vmm_pgt_sgl(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map) +{ + VMM_MAP_ITER_SGL(vmm, pt, ptei, ptes, map, nv50_vmm_pgt_pte); +} + +static void +nv50_vmm_pgt_dma(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map) +{ + if (map->page->shift == PAGE_SHIFT) { + VMM_SPAM(vmm, "DMAA %08x %08x PTE(s)", ptei, ptes); + nvkm_kmap(pt->memory); + while (ptes--) { + const u64 data = *map->dma++ | map->type; + VMM_WO064(pt, vmm, ptei++ * 8, data); + map->type += map->ctag; + } + nvkm_done(pt->memory); + return; + } + + VMM_MAP_ITER_DMA(vmm, pt, ptei, ptes, map, nv50_vmm_pgt_pte); +} + +static void +nv50_vmm_pgt_mem(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, + u32 ptei, u32 ptes, struct nvkm_vmm_map *map) +{ + VMM_MAP_ITER_MEM(vmm, pt, ptei, ptes, map, nv50_vmm_pgt_pte); +} + +static void +nv50_vmm_pgt_unmap(struct nvkm_vmm *vmm, + struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes) +{ + VMM_FO064(pt, vmm, ptei * 8, 0ULL, ptes); +} + +static const struct nvkm_vmm_desc_func +nv50_vmm_pgt = { + .unmap = nv50_vmm_pgt_unmap, + .mem = nv50_vmm_pgt_mem, + .dma = nv50_vmm_pgt_dma, + .sgl = nv50_vmm_pgt_sgl, +}; + +static bool +nv50_vmm_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgt, u64 *pdata) +{ + struct nvkm_mmu_pt *pt; + u64 data = 0xdeadcafe00000000ULL; + if (pgt && (pt = pgt->pt[0])) { + switch (pgt->page) { + case 16: data = 0x00000001; break; + case 12: data = 0x00000003; + switch (nvkm_memory_size(pt->memory)) { + case 0x100000: data |= 0x00000000; break; + case 0x040000: data |= 0x00000020; break; + case 0x020000: data |= 0x00000040; break; + case 0x010000: data |= 0x00000060; break; + default: + WARN_ON(1); + return false; + } + break; + default: + WARN_ON(1); + return false; + } + + switch (nvkm_memory_target(pt->memory)) { + case NVKM_MEM_TARGET_VRAM: data |= 0x00000000; break; + case NVKM_MEM_TARGET_HOST: data |= 0x00000008; break; + case NVKM_MEM_TARGET_NCOH: data |= 0x0000000c; break; + default: + WARN_ON(1); + return false; + } + + data |= pt->addr; + } + *pdata = data; + return true; +} + +static void +nv50_vmm_pgd_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgd, u32 pdei) +{ + struct nvkm_vmm_join *join; + u32 pdeo = vmm->mmu->func->vmm.pd_offset + (pdei * 8); + u64 data; + + if (!nv50_vmm_pde(vmm, pgd->pde[pdei], &data)) + return; + + list_for_each_entry(join, &vmm->join, head) { + nvkm_kmap(join->inst); + nvkm_wo64(join->inst, pdeo, data); + nvkm_done(join->inst); + } +} + +static const struct nvkm_vmm_desc_func +nv50_vmm_pgd = { + .pde = nv50_vmm_pgd_pde, +}; + +static const struct nvkm_vmm_desc +nv50_vmm_desc_12[] = { + { PGT, 17, 8, 0x1000, &nv50_vmm_pgt }, + { PGD, 11, 0, 0x0000, &nv50_vmm_pgd }, + {} +}; + +static const struct nvkm_vmm_desc +nv50_vmm_desc_16[] = { + { PGT, 13, 8, 0x1000, &nv50_vmm_pgt }, + { PGD, 11, 0, 0x0000, &nv50_vmm_pgd }, + {} +}; + +static void +nv50_vmm_flush(struct nvkm_vmm *vmm, int level) +{ + struct nvkm_subdev *subdev = &vmm->mmu->subdev; + struct nvkm_device *device = subdev->device; + int i, id; + + mutex_lock(&subdev->mutex); + for (i = 0; i < NVKM_SUBDEV_NR; i++) { + if (!atomic_read(&vmm->engref[i])) + continue; + + /* unfortunate hw bug workaround... */ + if (i == NVKM_ENGINE_GR && device->gr) { + int ret = nvkm_gr_tlb_flush(device->gr); + if (ret != -ENODEV) + continue; + } + + switch (i) { + case NVKM_ENGINE_GR : id = 0x00; break; + case NVKM_ENGINE_VP : + case NVKM_ENGINE_MSPDEC: id = 0x01; break; + case NVKM_SUBDEV_BAR : id = 0x06; break; + case NVKM_ENGINE_MSPPP : + case NVKM_ENGINE_MPEG : id = 0x08; break; + case NVKM_ENGINE_BSP : + case NVKM_ENGINE_MSVLD : id = 0x09; break; + case NVKM_ENGINE_CIPHER: + case NVKM_ENGINE_SEC : id = 0x0a; break; + case NVKM_ENGINE_CE0 : id = 0x0d; break; + default: + continue; + } + + nvkm_wr32(device, 0x100c80, (id << 16) | 1); + if (nvkm_msec(device, 2000, + if (!(nvkm_rd32(device, 0x100c80) & 0x00000001)) + break; + ) < 0) + nvkm_error(subdev, "%s mmu invalidate timeout\n", + nvkm_subdev_name[i]); + } + mutex_unlock(&subdev->mutex); +} + +static int +nv50_vmm_valid(struct nvkm_vmm *vmm, void *argv, u32 argc, + struct nvkm_vmm_map *map) +{ + const struct nvkm_vmm_page *page = map->page; + union { + struct nv50_vmm_map_vn vn; + struct nv50_vmm_map_v0 v0; + } *args = argv; + struct nvkm_device *device = vmm->mmu->subdev.device; + struct nvkm_ram *ram = device->fb->ram; + struct nvkm_memory *memory = map->memory; + u8 aper, kind, comp, priv, ro; + int kindn, ret = -ENOSYS; + const u8 *kindm; + + map->type = map->ctag = 0; + map->next = 1 << page->shift; + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { + ro = !!args->v0.ro; + priv = !!args->v0.priv; + kind = args->v0.kind & 0x7f; + comp = args->v0.comp & 0x03; + } else + if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) { + ro = 0; + priv = 0; + kind = 0x00; + comp = 0; + } else { + VMM_DEBUG(vmm, "args"); + return ret; + } + + switch (nvkm_memory_target(memory)) { + case NVKM_MEM_TARGET_VRAM: + if (ram->stolen) { + map->type |= ram->stolen; + aper = 3; + } else { + aper = 0; + } + break; + case NVKM_MEM_TARGET_HOST: + aper = 2; + break; + case NVKM_MEM_TARGET_NCOH: + aper = 3; + break; + default: + WARN_ON(1); + return -EINVAL; + } + + kindm = vmm->mmu->func->kind(vmm->mmu, &kindn); + if (kind >= kindn || kindm[kind] == 0x7f) { + VMM_DEBUG(vmm, "kind %02x", kind); + return -EINVAL; + } + + if (map->mem && map->mem->type != kindm[kind]) { + VMM_DEBUG(vmm, "kind %02x bankswz: %d %d", kind, + kindm[kind], map->mem->type); + return -EINVAL; + } + + if (comp) { + u32 tags = (nvkm_memory_size(memory) >> 16) * comp; + if (aper != 0 || !(page->type & NVKM_VMM_PAGE_COMP)) { + VMM_DEBUG(vmm, "comp %d %02x", aper, page->type); + return -EINVAL; + } + + ret = nvkm_memory_tags_get(memory, device, tags, NULL, + &map->tags); + if (ret) { + VMM_DEBUG(vmm, "comp %d", ret); + return ret; + } + + if (map->tags->mn) { + u32 tags = map->tags->mn->offset + (map->offset >> 16); + map->ctag |= (u64)comp << 49; + map->type |= (u64)comp << 47; + map->type |= (u64)tags << 49; + map->next |= map->ctag; + } + } + + map->type |= BIT(0); /* Valid. */ + map->type |= (u64)ro << 3; + map->type |= (u64)aper << 4; + map->type |= (u64)priv << 6; + map->type |= (u64)kind << 40; + return 0; +} + +static void +nv50_vmm_part(struct nvkm_vmm *vmm, struct nvkm_memory *inst) +{ + struct nvkm_vmm_join *join; + + list_for_each_entry(join, &vmm->join, head) { + if (join->inst == inst) { + list_del(&join->head); + kfree(join); + break; + } + } +} + +static int +nv50_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst) +{ + const u32 pd_offset = vmm->mmu->func->vmm.pd_offset; + struct nvkm_vmm_join *join; + int ret = 0; + u64 data; + u32 pdei; + + if (!(join = kmalloc(sizeof(*join), GFP_KERNEL))) + return -ENOMEM; + join->inst = inst; + list_add_tail(&join->head, &vmm->join); + + nvkm_kmap(join->inst); + for (pdei = vmm->start >> 29; pdei <= (vmm->limit - 1) >> 29; pdei++) { + if (!nv50_vmm_pde(vmm, vmm->pd->pde[pdei], &data)) { + ret = -EINVAL; + break; + } + nvkm_wo64(join->inst, pd_offset + (pdei * 8), data); + } + nvkm_done(join->inst); + return ret; +} + +static const struct nvkm_vmm_func +nv50_vmm = { + .join = nv50_vmm_join, + .part = nv50_vmm_part, + .valid = nv50_vmm_valid, + .flush = nv50_vmm_flush, + .page_block = 1 << 29, + .page = { + { 16, &nv50_vmm_desc_16[0], NVKM_VMM_PAGE_xVxC }, + { 12, &nv50_vmm_desc_12[0], NVKM_VMM_PAGE_xVHx }, + {} + } +}; + +int +nv50_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc, + struct lock_class_key *key, const char *name, + struct nvkm_vmm **pvmm) +{ + return nv04_vmm_new_(&nv50_vmm, mmu, 0, addr, size, + argv, argc, key, name, pvmm); +} |