diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_gtt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.c | 313 |
1 files changed, 187 insertions, 126 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 5101ab6869b..212f6d8c35e 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -28,8 +28,12 @@ #include "i915_trace.h" #include "intel_drv.h" +#define GEN6_PPGTT_PD_ENTRIES 512 +#define I915_PPGTT_PT_ENTRIES (PAGE_SIZE / sizeof(gen6_gtt_pte_t)) + /* PPGTT stuff */ #define GEN6_GTT_ADDR_ENCODE(addr) ((addr) | (((addr) >> 28) & 0xff0)) +#define HSW_GTT_ADDR_ENCODE(addr) ((addr) | (((addr) >> 28) & 0x7f0)) #define GEN6_PDE_VALID (1 << 0) /* gen6+ has bit 11-4 for physical addr bit 39-32 */ @@ -39,19 +43,50 @@ #define GEN6_PTE_UNCACHED (1 << 1) #define HSW_PTE_UNCACHED (0) #define GEN6_PTE_CACHE_LLC (2 << 1) -#define GEN6_PTE_CACHE_LLC_MLC (3 << 1) +#define GEN7_PTE_CACHE_L3_LLC (3 << 1) #define GEN6_PTE_ADDR_ENCODE(addr) GEN6_GTT_ADDR_ENCODE(addr) +#define HSW_PTE_ADDR_ENCODE(addr) HSW_GTT_ADDR_ENCODE(addr) -static gen6_gtt_pte_t gen6_pte_encode(struct drm_device *dev, - dma_addr_t addr, - enum i915_cache_level level) +/* Cacheability Control is a 4-bit value. The low three bits are stored in * + * bits 3:1 of the PTE, while the fourth bit is stored in bit 11 of the PTE. + */ +#define HSW_CACHEABILITY_CONTROL(bits) ((((bits) & 0x7) << 1) | \ + (((bits) & 0x8) << (11 - 3))) +#define HSW_WB_LLC_AGE3 HSW_CACHEABILITY_CONTROL(0x2) +#define HSW_WB_LLC_AGE0 HSW_CACHEABILITY_CONTROL(0x3) +#define HSW_WB_ELLC_LLC_AGE0 HSW_CACHEABILITY_CONTROL(0xb) +#define HSW_WT_ELLC_LLC_AGE0 HSW_CACHEABILITY_CONTROL(0x6) + +static gen6_gtt_pte_t snb_pte_encode(dma_addr_t addr, + enum i915_cache_level level) { gen6_gtt_pte_t pte = GEN6_PTE_VALID; pte |= GEN6_PTE_ADDR_ENCODE(addr); switch (level) { - case I915_CACHE_LLC_MLC: - pte |= GEN6_PTE_CACHE_LLC_MLC; + case I915_CACHE_L3_LLC: + case I915_CACHE_LLC: + pte |= GEN6_PTE_CACHE_LLC; + break; + case I915_CACHE_NONE: + pte |= GEN6_PTE_UNCACHED; + break; + default: + WARN_ON(1); + } + + return pte; +} + +static gen6_gtt_pte_t ivb_pte_encode(dma_addr_t addr, + enum i915_cache_level level) +{ + gen6_gtt_pte_t pte = GEN6_PTE_VALID; + pte |= GEN6_PTE_ADDR_ENCODE(addr); + + switch (level) { + case I915_CACHE_L3_LLC: + pte |= GEN7_PTE_CACHE_L3_LLC; break; case I915_CACHE_LLC: pte |= GEN6_PTE_CACHE_LLC; @@ -60,7 +95,7 @@ static gen6_gtt_pte_t gen6_pte_encode(struct drm_device *dev, pte |= GEN6_PTE_UNCACHED; break; default: - BUG(); + WARN_ON(1); } return pte; @@ -69,8 +104,7 @@ static gen6_gtt_pte_t gen6_pte_encode(struct drm_device *dev, #define BYT_PTE_WRITEABLE (1 << 1) #define BYT_PTE_SNOOPED_BY_CPU_CACHES (1 << 2) -static gen6_gtt_pte_t byt_pte_encode(struct drm_device *dev, - dma_addr_t addr, +static gen6_gtt_pte_t byt_pte_encode(dma_addr_t addr, enum i915_cache_level level) { gen6_gtt_pte_t pte = GEN6_PTE_VALID; @@ -87,22 +121,41 @@ static gen6_gtt_pte_t byt_pte_encode(struct drm_device *dev, return pte; } -static gen6_gtt_pte_t hsw_pte_encode(struct drm_device *dev, - dma_addr_t addr, +static gen6_gtt_pte_t hsw_pte_encode(dma_addr_t addr, enum i915_cache_level level) { gen6_gtt_pte_t pte = GEN6_PTE_VALID; - pte |= GEN6_PTE_ADDR_ENCODE(addr); + pte |= HSW_PTE_ADDR_ENCODE(addr); if (level != I915_CACHE_NONE) - pte |= GEN6_PTE_CACHE_LLC; + pte |= HSW_WB_LLC_AGE3; + + return pte; +} + +static gen6_gtt_pte_t iris_pte_encode(dma_addr_t addr, + enum i915_cache_level level) +{ + gen6_gtt_pte_t pte = GEN6_PTE_VALID; + pte |= HSW_PTE_ADDR_ENCODE(addr); + + switch (level) { + case I915_CACHE_NONE: + break; + case I915_CACHE_WT: + pte |= HSW_WT_ELLC_LLC_AGE0; + break; + default: + pte |= HSW_WB_ELLC_LLC_AGE0; + break; + } return pte; } static void gen6_write_pdes(struct i915_hw_ppgtt *ppgtt) { - struct drm_i915_private *dev_priv = ppgtt->dev->dev_private; + struct drm_i915_private *dev_priv = ppgtt->base.dev->dev_private; gen6_gtt_pte_t __iomem *pd_addr; uint32_t pd_entry; int i; @@ -181,18 +234,18 @@ static int gen6_ppgtt_enable(struct drm_device *dev) } /* PPGTT support for Sandybdrige/Gen6 and later */ -static void gen6_ppgtt_clear_range(struct i915_hw_ppgtt *ppgtt, +static void gen6_ppgtt_clear_range(struct i915_address_space *vm, unsigned first_entry, unsigned num_entries) { + struct i915_hw_ppgtt *ppgtt = + container_of(vm, struct i915_hw_ppgtt, base); gen6_gtt_pte_t *pt_vaddr, scratch_pte; unsigned act_pt = first_entry / I915_PPGTT_PT_ENTRIES; unsigned first_pte = first_entry % I915_PPGTT_PT_ENTRIES; unsigned last_pte, i; - scratch_pte = ppgtt->pte_encode(ppgtt->dev, - ppgtt->scratch_page_dma_addr, - I915_CACHE_LLC); + scratch_pte = vm->pte_encode(vm->scratch.addr, I915_CACHE_LLC); while (num_entries) { last_pte = first_pte + num_entries; @@ -212,11 +265,13 @@ static void gen6_ppgtt_clear_range(struct i915_hw_ppgtt *ppgtt, } } -static void gen6_ppgtt_insert_entries(struct i915_hw_ppgtt *ppgtt, +static void gen6_ppgtt_insert_entries(struct i915_address_space *vm, struct sg_table *pages, unsigned first_entry, enum i915_cache_level cache_level) { + struct i915_hw_ppgtt *ppgtt = + container_of(vm, struct i915_hw_ppgtt, base); gen6_gtt_pte_t *pt_vaddr; unsigned act_pt = first_entry / I915_PPGTT_PT_ENTRIES; unsigned act_pte = first_entry % I915_PPGTT_PT_ENTRIES; @@ -227,8 +282,7 @@ static void gen6_ppgtt_insert_entries(struct i915_hw_ppgtt *ppgtt, dma_addr_t page_addr; page_addr = sg_page_iter_dma_address(&sg_iter); - pt_vaddr[act_pte] = ppgtt->pte_encode(ppgtt->dev, page_addr, - cache_level); + pt_vaddr[act_pte] = vm->pte_encode(page_addr, cache_level); if (++act_pte == I915_PPGTT_PT_ENTRIES) { kunmap_atomic(pt_vaddr); act_pt++; @@ -240,13 +294,17 @@ static void gen6_ppgtt_insert_entries(struct i915_hw_ppgtt *ppgtt, kunmap_atomic(pt_vaddr); } -static void gen6_ppgtt_cleanup(struct i915_hw_ppgtt *ppgtt) +static void gen6_ppgtt_cleanup(struct i915_address_space *vm) { + struct i915_hw_ppgtt *ppgtt = + container_of(vm, struct i915_hw_ppgtt, base); int i; + drm_mm_takedown(&ppgtt->base.mm); + if (ppgtt->pt_dma_addr) { for (i = 0; i < ppgtt->num_pd_entries; i++) - pci_unmap_page(ppgtt->dev->pdev, + pci_unmap_page(ppgtt->base.dev->pdev, ppgtt->pt_dma_addr[i], 4096, PCI_DMA_BIDIRECTIONAL); } @@ -260,7 +318,7 @@ static void gen6_ppgtt_cleanup(struct i915_hw_ppgtt *ppgtt) static int gen6_ppgtt_init(struct i915_hw_ppgtt *ppgtt) { - struct drm_device *dev = ppgtt->dev; + struct drm_device *dev = ppgtt->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; unsigned first_pd_entry_in_global_pt; int i; @@ -271,18 +329,13 @@ static int gen6_ppgtt_init(struct i915_hw_ppgtt *ppgtt) * now. */ first_pd_entry_in_global_pt = gtt_total_entries(dev_priv->gtt); - if (IS_HASWELL(dev)) { - ppgtt->pte_encode = hsw_pte_encode; - } else if (IS_VALLEYVIEW(dev)) { - ppgtt->pte_encode = byt_pte_encode; - } else { - ppgtt->pte_encode = gen6_pte_encode; - } - ppgtt->num_pd_entries = I915_PPGTT_PD_ENTRIES; + ppgtt->base.pte_encode = dev_priv->gtt.base.pte_encode; + ppgtt->num_pd_entries = GEN6_PPGTT_PD_ENTRIES; ppgtt->enable = gen6_ppgtt_enable; - ppgtt->clear_range = gen6_ppgtt_clear_range; - ppgtt->insert_entries = gen6_ppgtt_insert_entries; - ppgtt->cleanup = gen6_ppgtt_cleanup; + ppgtt->base.clear_range = gen6_ppgtt_clear_range; + ppgtt->base.insert_entries = gen6_ppgtt_insert_entries; + ppgtt->base.cleanup = gen6_ppgtt_cleanup; + ppgtt->base.scratch = dev_priv->gtt.base.scratch; ppgtt->pt_pages = kzalloc(sizeof(struct page *)*ppgtt->num_pd_entries, GFP_KERNEL); if (!ppgtt->pt_pages) @@ -313,8 +366,8 @@ static int gen6_ppgtt_init(struct i915_hw_ppgtt *ppgtt) ppgtt->pt_dma_addr[i] = pt_addr; } - ppgtt->clear_range(ppgtt, 0, - ppgtt->num_pd_entries*I915_PPGTT_PT_ENTRIES); + ppgtt->base.clear_range(&ppgtt->base, 0, + ppgtt->num_pd_entries * I915_PPGTT_PT_ENTRIES); ppgtt->pd_offset = first_pd_entry_in_global_pt * sizeof(gen6_gtt_pte_t); @@ -347,8 +400,7 @@ static int i915_gem_init_aliasing_ppgtt(struct drm_device *dev) if (!ppgtt) return -ENOMEM; - ppgtt->dev = dev; - ppgtt->scratch_page_dma_addr = dev_priv->gtt.scratch_page_dma; + ppgtt->base.dev = dev; if (INTEL_INFO(dev)->gen < 8) ret = gen6_ppgtt_init(ppgtt); @@ -357,8 +409,11 @@ static int i915_gem_init_aliasing_ppgtt(struct drm_device *dev) if (ret) kfree(ppgtt); - else + else { dev_priv->mm.aliasing_ppgtt = ppgtt; + drm_mm_init(&ppgtt->base.mm, ppgtt->base.start, + ppgtt->base.total); + } return ret; } @@ -371,7 +426,7 @@ void i915_gem_cleanup_aliasing_ppgtt(struct drm_device *dev) if (!ppgtt) return; - ppgtt->cleanup(ppgtt); + ppgtt->base.cleanup(&ppgtt->base); dev_priv->mm.aliasing_ppgtt = NULL; } @@ -379,17 +434,17 @@ void i915_ppgtt_bind_object(struct i915_hw_ppgtt *ppgtt, struct drm_i915_gem_object *obj, enum i915_cache_level cache_level) { - ppgtt->insert_entries(ppgtt, obj->pages, - obj->gtt_space->start >> PAGE_SHIFT, - cache_level); + ppgtt->base.insert_entries(&ppgtt->base, obj->pages, + i915_gem_obj_ggtt_offset(obj) >> PAGE_SHIFT, + cache_level); } void i915_ppgtt_unbind_object(struct i915_hw_ppgtt *ppgtt, struct drm_i915_gem_object *obj) { - ppgtt->clear_range(ppgtt, - obj->gtt_space->start >> PAGE_SHIFT, - obj->base.size >> PAGE_SHIFT); + ppgtt->base.clear_range(&ppgtt->base, + i915_gem_obj_ggtt_offset(obj) >> PAGE_SHIFT, + obj->base.size >> PAGE_SHIFT); } extern int intel_iommu_gfx_mapped; @@ -436,11 +491,12 @@ void i915_gem_restore_gtt_mappings(struct drm_device *dev) struct drm_i915_gem_object *obj; /* First fill our portion of the GTT with scratch pages */ - dev_priv->gtt.gtt_clear_range(dev, dev_priv->gtt.start / PAGE_SIZE, - dev_priv->gtt.total / PAGE_SIZE); + dev_priv->gtt.base.clear_range(&dev_priv->gtt.base, + dev_priv->gtt.base.start / PAGE_SIZE, + dev_priv->gtt.base.total / PAGE_SIZE); list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) { - i915_gem_clflush_object(obj); + i915_gem_clflush_object(obj, obj->pin_display); i915_gem_gtt_bind_object(obj, obj->cache_level); } @@ -466,12 +522,12 @@ int i915_gem_gtt_prepare_object(struct drm_i915_gem_object *obj) * within the global GTT as well as accessible by the GPU through the GMADR * mapped BAR (dev_priv->mm.gtt->gtt). */ -static void gen6_ggtt_insert_entries(struct drm_device *dev, +static void gen6_ggtt_insert_entries(struct i915_address_space *vm, struct sg_table *st, unsigned int first_entry, enum i915_cache_level level) { - struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_i915_private *dev_priv = vm->dev->dev_private; gen6_gtt_pte_t __iomem *gtt_entries = (gen6_gtt_pte_t __iomem *)dev_priv->gtt.gsm + first_entry; int i = 0; @@ -480,8 +536,7 @@ static void gen6_ggtt_insert_entries(struct drm_device *dev, for_each_sg_page(st->sgl, &sg_iter, st->nents, 0) { addr = sg_page_iter_dma_address(&sg_iter); - iowrite32(dev_priv->gtt.pte_encode(dev, addr, level), - >t_entries[i]); + iowrite32(vm->pte_encode(addr, level), >t_entries[i]); i++; } @@ -492,8 +547,8 @@ static void gen6_ggtt_insert_entries(struct drm_device *dev, * hardware should work, we must keep this posting read for paranoia. */ if (i != 0) - WARN_ON(readl(>t_entries[i-1]) - != dev_priv->gtt.pte_encode(dev, addr, level)); + WARN_ON(readl(>t_entries[i-1]) != + vm->pte_encode(addr, level)); /* This next bit makes the above posting read even more important. We * want to flush the TLBs only after we're certain all the PTE updates @@ -503,11 +558,11 @@ static void gen6_ggtt_insert_entries(struct drm_device *dev, POSTING_READ(GFX_FLSH_CNTL_GEN6); } -static void gen6_ggtt_clear_range(struct drm_device *dev, +static void gen6_ggtt_clear_range(struct i915_address_space *vm, unsigned int first_entry, unsigned int num_entries) { - struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_i915_private *dev_priv = vm->dev->dev_private; gen6_gtt_pte_t scratch_pte, __iomem *gtt_base = (gen6_gtt_pte_t __iomem *) dev_priv->gtt.gsm + first_entry; const int max_entries = gtt_total_entries(dev_priv->gtt) - first_entry; @@ -518,16 +573,14 @@ static void gen6_ggtt_clear_range(struct drm_device *dev, first_entry, num_entries, max_entries)) num_entries = max_entries; - scratch_pte = dev_priv->gtt.pte_encode(dev, - dev_priv->gtt.scratch_page_dma, - I915_CACHE_LLC); + scratch_pte = vm->pte_encode(vm->scratch.addr, I915_CACHE_LLC); for (i = 0; i < num_entries; i++) iowrite32(scratch_pte, >t_base[i]); readl(gtt_base); } -static void i915_ggtt_insert_entries(struct drm_device *dev, +static void i915_ggtt_insert_entries(struct i915_address_space *vm, struct sg_table *st, unsigned int pg_start, enum i915_cache_level cache_level) @@ -539,7 +592,7 @@ static void i915_ggtt_insert_entries(struct drm_device *dev, } -static void i915_ggtt_clear_range(struct drm_device *dev, +static void i915_ggtt_clear_range(struct i915_address_space *vm, unsigned int first_entry, unsigned int num_entries) { @@ -552,10 +605,11 @@ void i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj, { struct drm_device *dev = obj->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; + const unsigned long entry = i915_gem_obj_ggtt_offset(obj) >> PAGE_SHIFT; - dev_priv->gtt.gtt_insert_entries(dev, obj->pages, - obj->gtt_space->start >> PAGE_SHIFT, - cache_level); + dev_priv->gtt.base.insert_entries(&dev_priv->gtt.base, obj->pages, + entry, + cache_level); obj->has_global_gtt_mapping = 1; } @@ -564,10 +618,11 @@ void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj) { struct drm_device *dev = obj->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; + const unsigned long entry = i915_gem_obj_ggtt_offset(obj) >> PAGE_SHIFT; - dev_priv->gtt.gtt_clear_range(obj->base.dev, - obj->gtt_space->start >> PAGE_SHIFT, - obj->base.size >> PAGE_SHIFT); + dev_priv->gtt.base.clear_range(&dev_priv->gtt.base, + entry, + obj->base.size >> PAGE_SHIFT); obj->has_global_gtt_mapping = 0; } @@ -618,7 +673,8 @@ void i915_gem_setup_global_gtt(struct drm_device *dev, * aperture. One page should be enough to keep any prefetching inside * of the aperture. */ - drm_i915_private_t *dev_priv = dev->dev_private; + struct drm_i915_private *dev_priv = dev->dev_private; + struct i915_address_space *ggtt_vm = &dev_priv->gtt.base; struct drm_mm_node *entry; struct drm_i915_gem_object *obj; unsigned long hole_start, hole_end; @@ -626,37 +682,38 @@ void i915_gem_setup_global_gtt(struct drm_device *dev, BUG_ON(mappable_end > end); /* Subtract the guard page ... */ - drm_mm_init(&dev_priv->mm.gtt_space, start, end - start - PAGE_SIZE); + drm_mm_init(&ggtt_vm->mm, start, end - start - PAGE_SIZE); if (!HAS_LLC(dev)) - dev_priv->mm.gtt_space.color_adjust = i915_gtt_color_adjust; + dev_priv->gtt.base.mm.color_adjust = i915_gtt_color_adjust; /* Mark any preallocated objects as occupied */ list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) { - DRM_DEBUG_KMS("reserving preallocated space: %x + %zx\n", - obj->gtt_offset, obj->base.size); - - BUG_ON(obj->gtt_space != I915_GTT_RESERVED); - obj->gtt_space = drm_mm_create_block(&dev_priv->mm.gtt_space, - obj->gtt_offset, - obj->base.size, - false); + struct i915_vma *vma = i915_gem_obj_to_vma(obj, ggtt_vm); + int ret; + DRM_DEBUG_KMS("reserving preallocated space: %lx + %zx\n", + i915_gem_obj_ggtt_offset(obj), obj->base.size); + + WARN_ON(i915_gem_obj_ggtt_bound(obj)); + ret = drm_mm_reserve_node(&ggtt_vm->mm, &vma->node); + if (ret) + DRM_DEBUG_KMS("Reservation failed\n"); obj->has_global_gtt_mapping = 1; + list_add(&vma->vma_link, &obj->vma_list); } - dev_priv->gtt.start = start; - dev_priv->gtt.total = end - start; + dev_priv->gtt.base.start = start; + dev_priv->gtt.base.total = end - start; /* Clear any non-preallocated blocks */ - drm_mm_for_each_hole(entry, &dev_priv->mm.gtt_space, - hole_start, hole_end) { + drm_mm_for_each_hole(entry, &ggtt_vm->mm, hole_start, hole_end) { + const unsigned long count = (hole_end - hole_start) / PAGE_SIZE; DRM_DEBUG_KMS("clearing unused GTT space: [%lx, %lx]\n", hole_start, hole_end); - dev_priv->gtt.gtt_clear_range(dev, hole_start / PAGE_SIZE, - (hole_end-hole_start) / PAGE_SIZE); + ggtt_vm->clear_range(ggtt_vm, hole_start / PAGE_SIZE, count); } /* And finally clear the reserved guard page */ - dev_priv->gtt.gtt_clear_range(dev, end / PAGE_SIZE - 1, 1); + ggtt_vm->clear_range(ggtt_vm, end / PAGE_SIZE - 1, 1); } static bool @@ -679,7 +736,7 @@ void i915_gem_init_global_gtt(struct drm_device *dev) struct drm_i915_private *dev_priv = dev->dev_private; unsigned long gtt_size, mappable_size; - gtt_size = dev_priv->gtt.total; + gtt_size = dev_priv->gtt.base.total; mappable_size = dev_priv->gtt.mappable_end; if (intel_enable_ppgtt(dev) && HAS_ALIASING_PPGTT(dev)) { @@ -688,7 +745,7 @@ void i915_gem_init_global_gtt(struct drm_device *dev) if (INTEL_INFO(dev)->gen <= 7) { /* PPGTT pdes are stolen from global gtt ptes, so shrink the * aperture accordingly when using aliasing ppgtt. */ - gtt_size -= I915_PPGTT_PD_ENTRIES*PAGE_SIZE; + gtt_size -= GEN6_PPGTT_PD_ENTRIES * PAGE_SIZE; } i915_gem_setup_global_gtt(dev, 0, mappable_size, gtt_size); @@ -698,8 +755,8 @@ void i915_gem_init_global_gtt(struct drm_device *dev) return; DRM_ERROR("Aliased PPGTT setup failed %d\n", ret); - drm_mm_takedown(&dev_priv->mm.gtt_space); - gtt_size += I915_PPGTT_PD_ENTRIES*PAGE_SIZE; + drm_mm_takedown(&dev_priv->gtt.base.mm); + gtt_size += GEN6_PPGTT_PD_ENTRIES * PAGE_SIZE; } i915_gem_setup_global_gtt(dev, 0, mappable_size, gtt_size); } @@ -724,8 +781,8 @@ static int setup_scratch_page(struct drm_device *dev) #else dma_addr = page_to_phys(page); #endif - dev_priv->gtt.scratch_page = page; - dev_priv->gtt.scratch_page_dma = dma_addr; + dev_priv->gtt.base.scratch.page = page; + dev_priv->gtt.base.scratch.addr = dma_addr; return 0; } @@ -733,11 +790,13 @@ static int setup_scratch_page(struct drm_device *dev) static void teardown_scratch_page(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; - set_pages_wb(dev_priv->gtt.scratch_page, 1); - pci_unmap_page(dev->pdev, dev_priv->gtt.scratch_page_dma, + struct page *page = dev_priv->gtt.base.scratch.page; + + set_pages_wb(page, 1); + pci_unmap_page(dev->pdev, dev_priv->gtt.base.scratch.addr, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); - put_page(dev_priv->gtt.scratch_page); - __free_page(dev_priv->gtt.scratch_page); + put_page(page); + __free_page(page); } static inline unsigned int gen6_get_total_gtt_size(u16 snb_gmch_ctl) @@ -800,17 +859,18 @@ static int gen6_gmch_probe(struct drm_device *dev, if (ret) DRM_ERROR("Scratch setup failed\n"); - dev_priv->gtt.gtt_clear_range = gen6_ggtt_clear_range; - dev_priv->gtt.gtt_insert_entries = gen6_ggtt_insert_entries; + dev_priv->gtt.base.clear_range = gen6_ggtt_clear_range; + dev_priv->gtt.base.insert_entries = gen6_ggtt_insert_entries; return ret; } -static void gen6_gmch_remove(struct drm_device *dev) +static void gen6_gmch_remove(struct i915_address_space *vm) { - struct drm_i915_private *dev_priv = dev->dev_private; - iounmap(dev_priv->gtt.gsm); - teardown_scratch_page(dev_priv->dev); + + struct i915_gtt *gtt = container_of(vm, struct i915_gtt, base); + iounmap(gtt->gsm); + teardown_scratch_page(vm->dev); } static int i915_gmch_probe(struct drm_device *dev, @@ -831,13 +891,13 @@ static int i915_gmch_probe(struct drm_device *dev, intel_gtt_get(gtt_total, stolen, mappable_base, mappable_end); dev_priv->gtt.do_idle_maps = needs_idle_maps(dev_priv->dev); - dev_priv->gtt.gtt_clear_range = i915_ggtt_clear_range; - dev_priv->gtt.gtt_insert_entries = i915_ggtt_insert_entries; + dev_priv->gtt.base.clear_range = i915_ggtt_clear_range; + dev_priv->gtt.base.insert_entries = i915_ggtt_insert_entries; return 0; } -static void i915_gmch_remove(struct drm_device *dev) +static void i915_gmch_remove(struct i915_address_space *vm) { intel_gmch_remove(); } @@ -849,34 +909,35 @@ int i915_gem_gtt_init(struct drm_device *dev) int ret; if (INTEL_INFO(dev)->gen <= 5) { - dev_priv->gtt.gtt_probe = i915_gmch_probe; - dev_priv->gtt.gtt_remove = i915_gmch_remove; + gtt->gtt_probe = i915_gmch_probe; + gtt->base.cleanup = i915_gmch_remove; } else { - dev_priv->gtt.gtt_probe = gen6_gmch_probe; - dev_priv->gtt.gtt_remove = gen6_gmch_remove; - if (IS_HASWELL(dev)) { - dev_priv->gtt.pte_encode = hsw_pte_encode; - } else if (IS_VALLEYVIEW(dev)) { - dev_priv->gtt.pte_encode = byt_pte_encode; - } else { - dev_priv->gtt.pte_encode = gen6_pte_encode; - } + gtt->gtt_probe = gen6_gmch_probe; + gtt->base.cleanup = gen6_gmch_remove; + if (IS_HASWELL(dev) && dev_priv->ellc_size) + gtt->base.pte_encode = iris_pte_encode; + else if (IS_HASWELL(dev)) + gtt->base.pte_encode = hsw_pte_encode; + else if (IS_VALLEYVIEW(dev)) + gtt->base.pte_encode = byt_pte_encode; + else if (INTEL_INFO(dev)->gen >= 7) + gtt->base.pte_encode = ivb_pte_encode; + else + gtt->base.pte_encode = snb_pte_encode; } - ret = dev_priv->gtt.gtt_probe(dev, &dev_priv->gtt.total, - &dev_priv->gtt.stolen_size, - >t->mappable_base, - >t->mappable_end); + ret = gtt->gtt_probe(dev, >t->base.total, >t->stolen_size, + >t->mappable_base, >t->mappable_end); if (ret) return ret; + gtt->base.dev = dev; + /* GMADR is the PCI mmio aperture into the global GTT. */ DRM_INFO("Memory usable by graphics device = %zdM\n", - dev_priv->gtt.total >> 20); - DRM_DEBUG_DRIVER("GMADR size = %ldM\n", - dev_priv->gtt.mappable_end >> 20); - DRM_DEBUG_DRIVER("GTT stolen size = %zdM\n", - dev_priv->gtt.stolen_size >> 20); + gtt->base.total >> 20); + DRM_DEBUG_DRIVER("GMADR size = %ldM\n", gtt->mappable_end >> 20); + DRM_DEBUG_DRIVER("GTT stolen size = %zdM\n", gtt->stolen_size >> 20); return 0; } |