diff options
| -rw-r--r-- | arch/powerpc/Kconfig | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/spu_manage.c | 102 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/file.c | 121 |
3 files changed, 80 insertions, 145 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 0088c5ebca78..340d9beab6d1 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -876,7 +876,7 @@ config ARCH_SPARSEMEM_ENABLE config ARCH_SPARSEMEM_DEFAULT def_bool y - depends on (SMP && PPC_PSERIES) || PPC_CELL + depends on (SMP && PPC_PSERIES) || PPC_PS3 config ARCH_POPULATES_NODE_MAP def_bool y diff --git a/arch/powerpc/platforms/cell/spu_manage.c b/arch/powerpc/platforms/cell/spu_manage.c index d8b39fe39cdd..e34599f53d28 100644 --- a/arch/powerpc/platforms/cell/spu_manage.c +++ b/arch/powerpc/platforms/cell/spu_manage.c @@ -59,63 +59,6 @@ static u64 __init find_spu_unit_number(struct device_node *spe) return 0; } -static int __init cell_spuprop_present(struct spu *spu, struct device_node *spe, - const char *prop) -{ - const struct address_prop { - unsigned long address; - unsigned int len; - } __attribute__((packed)) *p; - int proplen; - - unsigned long start_pfn, nr_pages; - struct pglist_data *pgdata; - struct zone *zone; - int ret; - - p = get_property(spe, prop, &proplen); - WARN_ON(proplen != sizeof (*p)); - - start_pfn = p->address >> PAGE_SHIFT; - nr_pages = ((unsigned long)p->len + PAGE_SIZE - 1) >> PAGE_SHIFT; - - pgdata = NODE_DATA(spu->node); - zone = pgdata->node_zones; - - ret = __add_pages(zone, start_pfn, nr_pages); - - return ret; -} - -static void __iomem * __init map_spe_prop(struct spu *spu, - struct device_node *n, const char *name) -{ - const struct address_prop { - unsigned long address; - unsigned int len; - } __attribute__((packed)) *prop; - - const void *p; - int proplen; - void __iomem *ret = NULL; - int err = 0; - - p = get_property(n, name, &proplen); - if (proplen != sizeof (struct address_prop)) - return NULL; - - prop = p; - - err = cell_spuprop_present(spu, n, name); - if (err && (err != -EEXIST)) - goto out; - - ret = ioremap(prop->address, prop->len); - - out: - return ret; -} - static void spu_unmap(struct spu *spu) { if (!firmware_has_feature(FW_FEATURE_LPAR)) @@ -157,6 +100,23 @@ static int __init spu_map_interrupts_old(struct spu *spu, return spu->irqs[2] == NO_IRQ ? -EINVAL : 0; } +static void __iomem * __init spu_map_prop_old(struct spu *spu, + struct device_node *n, + const char *name) +{ + const struct address_prop { + unsigned long address; + unsigned int len; + } __attribute__((packed)) *prop; + int proplen; + + prop = get_property(n, name, &proplen); + if (prop == NULL || proplen != sizeof (struct address_prop)) + return NULL; + + return ioremap(prop->address, prop->len); +} + static int __init spu_map_device_old(struct spu *spu) { struct device_node *node = spu->devnode; @@ -175,7 +135,7 @@ static int __init spu_map_device_old(struct spu *spu) /* we use local store as ram, not io memory */ spu->local_store = (void __force *) - map_spe_prop(spu, node, "local-store"); + spu_map_prop_old(spu, node, "local-store"); if (!spu->local_store) goto out; @@ -184,16 +144,16 @@ static int __init spu_map_device_old(struct spu *spu) goto out_unmap; spu->problem_phys = *(unsigned long *)prop; - spu->problem = map_spe_prop(spu, node, "problem"); + spu->problem = spu_map_prop_old(spu, node, "problem"); if (!spu->problem) goto out_unmap; - spu->priv2 = map_spe_prop(spu, node, "priv2"); + spu->priv2 = spu_map_prop_old(spu, node, "priv2"); if (!spu->priv2) goto out_unmap; if (!firmware_has_feature(FW_FEATURE_LPAR)) { - spu->priv1 = map_spe_prop(spu, node, "priv1"); + spu->priv1 = spu_map_prop_old(spu, node, "priv1"); if (!spu->priv1) goto out_unmap; } @@ -245,34 +205,20 @@ static int spu_map_resource(struct spu *spu, int nr, void __iomem** virt, unsigned long *phys) { struct device_node *np = spu->devnode; - unsigned long start_pfn, nr_pages; - struct pglist_data *pgdata; - struct zone *zone; struct resource resource = { }; unsigned long len; int ret; ret = of_address_to_resource(np, nr, &resource); if (ret) - goto out; - + return ret; if (phys) *phys = resource.start; len = resource.end - resource.start + 1; *virt = ioremap(resource.start, len); if (!*virt) - ret = -EINVAL; - - start_pfn = resource.start >> PAGE_SHIFT; - nr_pages = (len + PAGE_SIZE - 1) >> PAGE_SHIFT; - - pgdata = NODE_DATA(spu->node); - zone = pgdata->node_zones; - - ret = __add_pages(zone, start_pfn, nr_pages); - -out: - return ret; + return -EINVAL; + return 0; } static int __init spu_map_device(struct spu *spu) diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c index af9e9455a706..7fb9a6dc4f18 100644 --- a/arch/powerpc/platforms/cell/spufs/file.c +++ b/arch/powerpc/platforms/cell/spufs/file.c @@ -95,14 +95,12 @@ spufs_mem_write(struct file *file, const char __user *buffer, return ret; } -static struct page * -spufs_mem_mmap_nopage(struct vm_area_struct *vma, - unsigned long address, int *type) +static unsigned long spufs_mem_mmap_nopfn(struct vm_area_struct *vma, + unsigned long address) { - struct page *page = NOPAGE_SIGBUS; - struct spu_context *ctx = vma->vm_file->private_data; - unsigned long offset = address - vma->vm_start; + unsigned long pfn, offset = address - vma->vm_start; + offset += vma->vm_pgoff << PAGE_SHIFT; spu_acquire(ctx); @@ -110,24 +108,22 @@ spufs_mem_mmap_nopage(struct vm_area_struct *vma, if (ctx->state == SPU_STATE_SAVED) { vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) & ~_PAGE_NO_CACHE); - page = vmalloc_to_page(ctx->csa.lscsa->ls + offset); + pfn = vmalloc_to_pfn(ctx->csa.lscsa->ls + offset); } else { vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) - | _PAGE_NO_CACHE); - page = pfn_to_page((ctx->spu->local_store_phys + offset) - >> PAGE_SHIFT); + | _PAGE_NO_CACHE); + pfn = (ctx->spu->local_store_phys + offset) >> PAGE_SHIFT; } - spu_release(ctx); + vm_insert_pfn(vma, address, pfn); - if (type) - *type = VM_FAULT_MINOR; + spu_release(ctx); - page_cache_get(page); - return page; + return NOPFN_REFAULT; } + static struct vm_operations_struct spufs_mem_mmap_vmops = { - .nopage = spufs_mem_mmap_nopage, + .nopfn = spufs_mem_mmap_nopfn, }; static int @@ -136,7 +132,7 @@ spufs_mem_mmap(struct file *file, struct vm_area_struct *vma) if (!(vma->vm_flags & VM_SHARED)) return -EINVAL; - vma->vm_flags |= VM_IO; + vma->vm_flags |= VM_IO | VM_PFNMAP; vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) | _PAGE_NO_CACHE); @@ -152,49 +148,42 @@ static const struct file_operations spufs_mem_fops = { .mmap = spufs_mem_mmap, }; -static struct page *spufs_ps_nopage(struct vm_area_struct *vma, +static unsigned long spufs_ps_nopfn(struct vm_area_struct *vma, unsigned long address, - int *type, unsigned long ps_offs, + unsigned long ps_offs, unsigned long ps_size) { - struct page *page = NOPAGE_SIGBUS; - int fault_type = VM_FAULT_SIGBUS; struct spu_context *ctx = vma->vm_file->private_data; - unsigned long offset = address - vma->vm_start; - unsigned long area; + unsigned long area, offset = address - vma->vm_start; int ret; offset += vma->vm_pgoff << PAGE_SHIFT; if (offset >= ps_size) - goto out; + return NOPFN_SIGBUS; + /* error here usually means a signal.. we might want to test + * the error code more precisely though + */ ret = spu_acquire_runnable(ctx); if (ret) - goto out; + return NOPFN_REFAULT; area = ctx->spu->problem_phys + ps_offs; - page = pfn_to_page((area + offset) >> PAGE_SHIFT); - fault_type = VM_FAULT_MINOR; - page_cache_get(page); - + vm_insert_pfn(vma, address, (area + offset) >> PAGE_SHIFT); spu_release(ctx); - out: - if (type) - *type = fault_type; - - return page; + return NOPFN_REFAULT; } #if SPUFS_MMAP_4K -static struct page *spufs_cntl_mmap_nopage(struct vm_area_struct *vma, - unsigned long address, int *type) +static unsigned long spufs_cntl_mmap_nopfn(struct vm_area_struct *vma, + unsigned long address) { - return spufs_ps_nopage(vma, address, type, 0x4000, 0x1000); + return spufs_ps_nopfn(vma, address, 0x4000, 0x1000); } static struct vm_operations_struct spufs_cntl_mmap_vmops = { - .nopage = spufs_cntl_mmap_nopage, + .nopfn = spufs_cntl_mmap_nopfn, }; /* @@ -205,7 +194,7 @@ static int spufs_cntl_mmap(struct file *file, struct vm_area_struct *vma) if (!(vma->vm_flags & VM_SHARED)) return -EINVAL; - vma->vm_flags |= VM_IO; + vma->vm_flags |= VM_IO | VM_PFNMAP; vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) | _PAGE_NO_CACHE | _PAGE_GUARDED); @@ -791,23 +780,23 @@ static ssize_t spufs_signal1_write(struct file *file, const char __user *buf, return 4; } -static struct page *spufs_signal1_mmap_nopage(struct vm_area_struct *vma, - unsigned long address, int *type) +static unsigned long spufs_signal1_mmap_nopfn(struct vm_area_struct *vma, + unsigned long address) { #if PAGE_SIZE == 0x1000 - return spufs_ps_nopage(vma, address, type, 0x14000, 0x1000); + return spufs_ps_nopfn(vma, address, 0x14000, 0x1000); #elif PAGE_SIZE == 0x10000 /* For 64k pages, both signal1 and signal2 can be used to mmap the whole * signal 1 and 2 area */ - return spufs_ps_nopage(vma, address, type, 0x10000, 0x10000); + return spufs_ps_nopfn(vma, address, 0x10000, 0x10000); #else #error unsupported page size #endif } static struct vm_operations_struct spufs_signal1_mmap_vmops = { - .nopage = spufs_signal1_mmap_nopage, + .nopfn = spufs_signal1_mmap_nopfn, }; static int spufs_signal1_mmap(struct file *file, struct vm_area_struct *vma) @@ -815,7 +804,7 @@ static int spufs_signal1_mmap(struct file *file, struct vm_area_struct *vma) if (!(vma->vm_flags & VM_SHARED)) return -EINVAL; - vma->vm_flags |= VM_IO; + vma->vm_flags |= VM_IO | VM_PFNMAP; vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) | _PAGE_NO_CACHE | _PAGE_GUARDED); @@ -899,23 +888,23 @@ static ssize_t spufs_signal2_write(struct file *file, const char __user *buf, } #if SPUFS_MMAP_4K -static struct page *spufs_signal2_mmap_nopage(struct vm_area_struct *vma, - unsigned long address, int *type) +static unsigned long spufs_signal2_mmap_nopfn(struct vm_area_struct *vma, + unsigned long address) { #if PAGE_SIZE == 0x1000 - return spufs_ps_nopage(vma, address, type, 0x1c000, 0x1000); + return spufs_ps_nopfn(vma, address, 0x1c000, 0x1000); #elif PAGE_SIZE == 0x10000 /* For 64k pages, both signal1 and signal2 can be used to mmap the whole * signal 1 and 2 area */ - return spufs_ps_nopage(vma, address, type, 0x10000, 0x10000); + return spufs_ps_nopfn(vma, address, 0x10000, 0x10000); #else #error unsupported page size #endif } static struct vm_operations_struct spufs_signal2_mmap_vmops = { - .nopage = spufs_signal2_mmap_nopage, + .nopfn = spufs_signal2_mmap_nopfn, }; static int spufs_signal2_mmap(struct file *file, struct vm_area_struct *vma) @@ -923,7 +912,7 @@ static int spufs_signal2_mmap(struct file *file, struct vm_area_struct *vma) if (!(vma->vm_flags & VM_SHARED)) return -EINVAL; - vma->vm_flags |= VM_IO; + vma->vm_flags |= VM_IO | VM_PFNMAP; vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) | _PAGE_NO_CACHE | _PAGE_GUARDED); @@ -1000,14 +989,14 @@ DEFINE_SIMPLE_ATTRIBUTE(spufs_signal2_type, spufs_signal2_type_get, spufs_signal2_type_set, "%llu"); #if SPUFS_MMAP_4K -static struct page *spufs_mss_mmap_nopage(struct vm_area_struct *vma, - unsigned long address, int *type) +static unsigned long spufs_mss_mmap_nopfn(struct vm_area_struct *vma, + unsigned long address) { - return spufs_ps_nopage(vma, address, type, 0x0000, 0x1000); + return spufs_ps_nopfn(vma, address, 0x0000, 0x1000); } static struct vm_operations_struct spufs_mss_mmap_vmops = { - .nopage = spufs_mss_mmap_nopage, + .nopfn = spufs_mss_mmap_nopfn, }; /* @@ -1018,7 +1007,7 @@ static int spufs_mss_mmap(struct file *file, struct vm_area_struct *vma) if (!(vma->vm_flags & VM_SHARED)) return -EINVAL; - vma->vm_flags |= VM_IO; + vma->vm_flags |= VM_IO | VM_PFNMAP; vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) | _PAGE_NO_CACHE | _PAGE_GUARDED); @@ -1042,14 +1031,14 @@ static const struct file_operations spufs_mss_fops = { .mmap = spufs_mss_mmap, }; -static struct page *spufs_psmap_mmap_nopage(struct vm_area_struct *vma, - unsigned long address, int *type) +static unsigned long spufs_psmap_mmap_nopfn(struct vm_area_struct *vma, + unsigned long address) { - return spufs_ps_nopage(vma, address, type, 0x0000, 0x20000); + return spufs_ps_nopfn(vma, address, 0x0000, 0x20000); } static struct vm_operations_struct spufs_psmap_mmap_vmops = { - .nopage = spufs_psmap_mmap_nopage, + .nopfn = spufs_psmap_mmap_nopfn, }; /* @@ -1060,7 +1049,7 @@ static int spufs_psmap_mmap(struct file *file, struct vm_area_struct *vma) if (!(vma->vm_flags & VM_SHARED)) return -EINVAL; - vma->vm_flags |= VM_IO; + vma->vm_flags |= VM_IO | VM_PFNMAP; vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) | _PAGE_NO_CACHE | _PAGE_GUARDED); @@ -1083,14 +1072,14 @@ static const struct file_operations spufs_psmap_fops = { #if SPUFS_MMAP_4K -static struct page *spufs_mfc_mmap_nopage(struct vm_area_struct *vma, - unsigned long address, int *type) +static unsigned long spufs_mfc_mmap_nopfn(struct vm_area_struct *vma, + unsigned long address) { - return spufs_ps_nopage(vma, address, type, 0x3000, 0x1000); + return spufs_ps_nopfn(vma, address, 0x3000, 0x1000); } static struct vm_operations_struct spufs_mfc_mmap_vmops = { - .nopage = spufs_mfc_mmap_nopage, + .nopfn = spufs_mfc_mmap_nopfn, }; /* @@ -1101,7 +1090,7 @@ static int spufs_mfc_mmap(struct file *file, struct vm_area_struct *vma) if (!(vma->vm_flags & VM_SHARED)) return -EINVAL; - vma->vm_flags |= VM_IO; + vma->vm_flags |= VM_IO | VM_PFNMAP; vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) | _PAGE_NO_CACHE | _PAGE_GUARDED); |