diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_gtt.c')
-rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.c | 92 |
1 files changed, 46 insertions, 46 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 071867f38dc2..5413c2ff51a2 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -910,6 +910,23 @@ static inline unsigned int gen8_pd_top_count(const struct i915_address_space *vm return (vm->total + (1ull << shift) - 1) >> shift; } +static inline struct i915_page_directory * +gen8_pdp_for_page_index(struct i915_address_space * const vm, const u64 idx) +{ + struct i915_ppgtt * const ppgtt = i915_vm_to_ppgtt(vm); + + if (vm->top == 2) + return ppgtt->pd; + else + return i915_pd_entry(ppgtt->pd, gen8_pd_index(idx, vm->top)); +} + +static inline struct i915_page_directory * +gen8_pdp_for_page_address(struct i915_address_space * const vm, const u64 addr) +{ + return gen8_pdp_for_page_index(vm, addr >> GEN8_PTE_SHIFT); +} + static void __gen8_ppgtt_cleanup(struct i915_address_space *vm, struct i915_page_directory *pd, int count, int lvl) @@ -1136,12 +1153,12 @@ static inline struct sgt_dma { } static __always_inline u64 -gen8_ppgtt_insert_pte_entries(struct i915_ppgtt *ppgtt, - struct i915_page_directory *pdp, - struct sgt_dma *iter, - u64 idx, - enum i915_cache_level cache_level, - u32 flags) +gen8_ppgtt_insert_pte(struct i915_ppgtt *ppgtt, + struct i915_page_directory *pdp, + struct sgt_dma *iter, + u64 idx, + enum i915_cache_level cache_level, + u32 flags) { struct i915_page_directory *pd; const gen8_pte_t pte_encode = gen8_pte_encode(0, cache_level, flags); @@ -1182,35 +1199,21 @@ gen8_ppgtt_insert_pte_entries(struct i915_ppgtt *ppgtt, return idx; } -static void gen8_ppgtt_insert_3lvl(struct i915_address_space *vm, - struct i915_vma *vma, +static void gen8_ppgtt_insert_huge(struct i915_vma *vma, + struct sgt_dma *iter, enum i915_cache_level cache_level, u32 flags) { - struct i915_ppgtt *ppgtt = i915_vm_to_ppgtt(vm); - struct sgt_dma iter = sgt_dma(vma); - - gen8_ppgtt_insert_pte_entries(ppgtt, ppgtt->pd, &iter, - vma->node.start >> GEN8_PTE_SHIFT, - cache_level, flags); - - vma->page_sizes.gtt = I915_GTT_PAGE_SIZE; -} - -static void gen8_ppgtt_insert_huge_entries(struct i915_vma *vma, - struct i915_page_directory *pml4, - struct sgt_dma *iter, - enum i915_cache_level cache_level, - u32 flags) -{ const gen8_pte_t pte_encode = gen8_pte_encode(0, cache_level, flags); u64 start = vma->node.start; dma_addr_t rem = iter->sg->length; + GEM_BUG_ON(!i915_vm_is_4lvl(vma->vm)); + do { - struct i915_page_directory *pdp = - i915_pd_entry(pml4, __gen8_pte_index(start, 3)); - struct i915_page_directory *pd = + struct i915_page_directory * const pdp = + gen8_pdp_for_page_address(vma->vm, start); + struct i915_page_directory * const pd = i915_pd_entry(pdp, __gen8_pte_index(start, 2)); gen8_pte_t encode = pte_encode; unsigned int maybe_64K = -1; @@ -1316,26 +1319,26 @@ static void gen8_ppgtt_insert_huge_entries(struct i915_vma *vma, } while (iter->sg); } -static void gen8_ppgtt_insert_4lvl(struct i915_address_space *vm, - struct i915_vma *vma, - enum i915_cache_level cache_level, - u32 flags) +static void gen8_ppgtt_insert(struct i915_address_space *vm, + struct i915_vma *vma, + enum i915_cache_level cache_level, + u32 flags) { - struct i915_ppgtt *ppgtt = i915_vm_to_ppgtt(vm); + struct i915_ppgtt * const ppgtt = i915_vm_to_ppgtt(vm); struct sgt_dma iter = sgt_dma(vma); - struct i915_page_directory * const pml4 = ppgtt->pd; if (vma->page_sizes.sg > I915_GTT_PAGE_SIZE) { - gen8_ppgtt_insert_huge_entries(vma, pml4, &iter, cache_level, - flags); - } else { + gen8_ppgtt_insert_huge(vma, &iter, cache_level, flags); + } else { u64 idx = vma->node.start >> GEN8_PTE_SHIFT; - while ((idx = gen8_ppgtt_insert_pte_entries(ppgtt, - i915_pd_entry(pml4, gen8_pd_index(idx, 3)), - &iter, idx, cache_level, - flags))) - ; + do { + struct i915_page_directory * const pdp = + gen8_pdp_for_page_index(vm, idx); + + idx = gen8_ppgtt_insert_pte(ppgtt, pdp, &iter, idx, + cache_level, flags); + } while (idx); vma->page_sizes.gtt = I915_GTT_PAGE_SIZE; } @@ -1494,18 +1497,15 @@ static struct i915_ppgtt *gen8_ppgtt_create(struct drm_i915_private *i915) goto err_free_scratch; } - if (i915_vm_is_4lvl(&ppgtt->vm)) { - ppgtt->vm.insert_entries = gen8_ppgtt_insert_4lvl; - } else { + if (!i915_vm_is_4lvl(&ppgtt->vm)) { if (intel_vgpu_active(i915)) { err = gen8_preallocate_top_level_pdp(ppgtt); if (err) goto err_free_pd; } - - ppgtt->vm.insert_entries = gen8_ppgtt_insert_3lvl; } + ppgtt->vm.insert_entries = gen8_ppgtt_insert; ppgtt->vm.allocate_va_range = gen8_ppgtt_alloc; ppgtt->vm.clear_range = gen8_ppgtt_clear; |