diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_ggtt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_ggtt.c | 81 |
1 files changed, 73 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt.c b/drivers/gpu/drm/i915/gt/intel_ggtt.c index 0d0a0dc9f610..08c4e735481b 100644 --- a/drivers/gpu/drm/i915/gt/intel_ggtt.c +++ b/drivers/gpu/drm/i915/gt/intel_ggtt.c @@ -9,10 +9,10 @@ #include <linux/stop_machine.h> #include <drm/drm_managed.h> -#include <drm/i915_drm.h> -#include <drm/intel-gtt.h> +#include <drm/drm_print.h> +#include <drm/intel/i915_drm.h> +#include <drm/intel/intel-gtt.h> -#include "display/intel_display.h" #include "gem/i915_gem_lmem.h" #include "intel_context.h" @@ -108,11 +108,12 @@ int i915_ggtt_init_hw(struct drm_i915_private *i915) /** * i915_ggtt_suspend_vm - Suspend the memory mappings for a GGTT or DPT VM * @vm: The VM to suspend the mappings for + * @evict_all: Evict all VMAs * * Suspend the memory mappings for all objects mapped to HW via the GGTT or a * DPT page table. */ -void i915_ggtt_suspend_vm(struct i915_address_space *vm) +void i915_ggtt_suspend_vm(struct i915_address_space *vm, bool evict_all) { struct i915_vma *vma, *vn; int save_skip_rewrite; @@ -158,7 +159,7 @@ retry: goto retry; } - if (!i915_vma_is_bound(vma, I915_VMA_GLOBAL_BIND)) { + if (evict_all || !i915_vma_is_bound(vma, I915_VMA_GLOBAL_BIND)) { i915_vma_wait_for_bind(vma); __i915_vma_evict(vma, false); @@ -173,13 +174,15 @@ retry: vm->skip_pte_rewrite = save_skip_rewrite; mutex_unlock(&vm->mutex); + + drm_WARN_ON(&vm->i915->drm, evict_all && !list_empty(&vm->bound_list)); } void i915_ggtt_suspend(struct i915_ggtt *ggtt) { struct intel_gt *gt; - i915_ggtt_suspend_vm(&ggtt->vm); + i915_ggtt_suspend_vm(&ggtt->vm, false); ggtt->invalidate(ggtt); list_for_each_entry(gt, &ggtt->gt_list, ggtt_link) @@ -287,6 +290,14 @@ u64 gen8_ggtt_pte_encode(dma_addr_t addr, return pte; } +static dma_addr_t gen8_ggtt_pte_decode(u64 pte, bool *is_present, bool *is_local) +{ + *is_present = pte & GEN8_PAGE_PRESENT; + *is_local = pte & GEN12_GGTT_PTE_LM; + + return pte & GEN12_GGTT_PTE_ADDR_MASK; +} + static bool should_update_ggtt_with_bind(struct i915_ggtt *ggtt) { struct intel_gt *gt = ggtt->vm.gt; @@ -433,6 +444,11 @@ static void gen8_set_pte(void __iomem *addr, gen8_pte_t pte) writeq(pte, addr); } +static gen8_pte_t gen8_get_pte(void __iomem *addr) +{ + return readq(addr); +} + static void gen8_ggtt_insert_page(struct i915_address_space *vm, dma_addr_t addr, u64 offset, @@ -448,6 +464,16 @@ static void gen8_ggtt_insert_page(struct i915_address_space *vm, ggtt->invalidate(ggtt); } +static dma_addr_t gen8_ggtt_read_entry(struct i915_address_space *vm, + u64 offset, bool *is_present, bool *is_local) +{ + struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); + gen8_pte_t __iomem *pte = + (gen8_pte_t __iomem *)ggtt->gsm + offset / I915_GTT_PAGE_SIZE; + + return ggtt->vm.pte_decode(gen8_get_pte(pte), is_present, is_local); +} + static void gen8_ggtt_insert_page_bind(struct i915_address_space *vm, dma_addr_t addr, u64 offset, unsigned int pat_index, u32 flags) @@ -603,6 +629,17 @@ static void gen6_ggtt_insert_page(struct i915_address_space *vm, ggtt->invalidate(ggtt); } +static dma_addr_t gen6_ggtt_read_entry(struct i915_address_space *vm, + u64 offset, + bool *is_present, bool *is_local) +{ + struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); + gen6_pte_t __iomem *pte = + (gen6_pte_t __iomem *)ggtt->gsm + offset / I915_GTT_PAGE_SIZE; + + return vm->pte_decode(ioread32(pte), is_present, is_local); +} + /* * Binds an object into the global gtt with the specified cache level. * The object will be accessible to the GPU via commands whose operands @@ -767,6 +804,14 @@ void intel_ggtt_unbind_vma(struct i915_address_space *vm, vm->clear_range(vm, vma_res->start, vma_res->vma_size); } +dma_addr_t intel_ggtt_read_entry(struct i915_address_space *vm, + u64 offset, bool *is_present, bool *is_local) +{ + struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); + + return ggtt->vm.read_entry(vm, offset, is_present, is_local); +} + /* * Reserve the top of the GuC address space for firmware images. Addresses * beyond GUC_GGTT_TOP in the GuC address space are inaccessible by GuC, @@ -1243,6 +1288,7 @@ static int gen8_gmch_probe(struct i915_ggtt *ggtt) ggtt->vm.scratch_range = gen8_ggtt_clear_range; ggtt->vm.insert_entries = gen8_ggtt_insert_entries; + ggtt->vm.read_entry = gen8_ggtt_read_entry; /* * Serialize GTT updates with aperture access on BXT if VT-d is on, @@ -1289,6 +1335,8 @@ static int gen8_gmch_probe(struct i915_ggtt *ggtt) else ggtt->vm.pte_encode = gen8_ggtt_pte_encode; + ggtt->vm.pte_decode = gen8_ggtt_pte_decode; + return ggtt_probe_common(ggtt, size); } @@ -1388,6 +1436,14 @@ static u64 iris_pte_encode(dma_addr_t addr, return pte; } +static dma_addr_t gen6_pte_decode(u64 pte, bool *is_present, bool *is_local) +{ + *is_present = pte & GEN6_PTE_VALID; + *is_local = false; + + return ((pte & 0xff0) << 28) | (pte & ~0xfff); +} + static int gen6_gmch_probe(struct i915_ggtt *ggtt) { struct drm_i915_private *i915 = ggtt->vm.i915; @@ -1426,6 +1482,7 @@ static int gen6_gmch_probe(struct i915_ggtt *ggtt) ggtt->vm.scratch_range = gen6_ggtt_clear_range; ggtt->vm.insert_page = gen6_ggtt_insert_page; ggtt->vm.insert_entries = gen6_ggtt_insert_entries; + ggtt->vm.read_entry = gen6_ggtt_read_entry; ggtt->vm.cleanup = gen6_gmch_remove; ggtt->invalidate = gen6_ggtt_invalidate; @@ -1441,6 +1498,8 @@ static int gen6_gmch_probe(struct i915_ggtt *ggtt) else ggtt->vm.pte_encode = snb_pte_encode; + ggtt->vm.pte_decode = gen6_pte_decode; + ggtt->vm.vma_ops.bind_vma = intel_ggtt_bind_vma; ggtt->vm.vma_ops.unbind_vma = intel_ggtt_unbind_vma; @@ -1546,6 +1605,7 @@ int i915_ggtt_enable_hw(struct drm_i915_private *i915) /** * i915_ggtt_resume_vm - Restore the memory mappings for a GGTT or DPT VM * @vm: The VM to restore the mappings for + * @all_evicted: Were all VMAs expected to be evicted on suspend? * * Restore the memory mappings for all objects mapped to HW via the GGTT or a * DPT page table. @@ -1553,13 +1613,18 @@ int i915_ggtt_enable_hw(struct drm_i915_private *i915) * Returns %true if restoring the mapping for any object that was in a write * domain before suspend. */ -bool i915_ggtt_resume_vm(struct i915_address_space *vm) +bool i915_ggtt_resume_vm(struct i915_address_space *vm, bool all_evicted) { struct i915_vma *vma; bool write_domain_objs = false; drm_WARN_ON(&vm->i915->drm, !vm->is_ggtt && !vm->is_dpt); + if (all_evicted) { + drm_WARN_ON(&vm->i915->drm, !list_empty(&vm->bound_list)); + return false; + } + /* First fill our portion of the GTT with scratch pages */ vm->clear_range(vm, 0, vm->total); @@ -1599,7 +1664,7 @@ void i915_ggtt_resume(struct i915_ggtt *ggtt) list_for_each_entry(gt, &ggtt->gt_list, ggtt_link) intel_gt_check_and_clear_faults(gt); - flush = i915_ggtt_resume_vm(&ggtt->vm); + flush = i915_ggtt_resume_vm(&ggtt->vm, false); if (drm_mm_node_allocated(&ggtt->error_capture)) ggtt->vm.scratch_range(&ggtt->vm, ggtt->error_capture.start, |