X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=drivers%2Fgpu%2Fdrm%2Fi915%2Fi915_gem_gtt.c;h=46cae2a92bda446bb3f214e9c554b7f0e8751e8e;hb=dca33ecc5f1e5542b3f2fa2911b92f743369d367;hp=0d666b3f7e9bad0668a5b0d9b6d461ed462a84a0;hpb=2566278551d3db875bc3bbfc41b42f2e80392108;p=deliverable%2Flinux.git diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 0d666b3f7e9b..46cae2a92bda 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -93,6 +93,13 @@ * */ +static inline struct i915_ggtt * +i915_vm_to_ggtt(struct i915_address_space *vm) +{ + GEM_BUG_ON(!i915_is_ggtt(vm)); + return container_of(vm, struct i915_ggtt, base); +} + static int i915_get_ggtt_vma_pages(struct i915_vma *vma); @@ -103,25 +110,29 @@ const struct i915_ggtt_view i915_ggtt_view_rotated = { .type = I915_GGTT_VIEW_ROTATED, }; -static int sanitize_enable_ppgtt(struct drm_device *dev, int enable_ppgtt) +int intel_sanitize_enable_ppgtt(struct drm_i915_private *dev_priv, + int enable_ppgtt) { bool has_aliasing_ppgtt; bool has_full_ppgtt; bool has_full_48bit_ppgtt; - has_aliasing_ppgtt = INTEL_INFO(dev)->gen >= 6; - has_full_ppgtt = INTEL_INFO(dev)->gen >= 7; - has_full_48bit_ppgtt = IS_BROADWELL(dev) || INTEL_INFO(dev)->gen >= 9; + has_aliasing_ppgtt = INTEL_GEN(dev_priv) >= 6; + has_full_ppgtt = INTEL_GEN(dev_priv) >= 7; + has_full_48bit_ppgtt = + IS_BROADWELL(dev_priv) || INTEL_GEN(dev_priv) >= 9; - if (intel_vgpu_active(dev)) + if (intel_vgpu_active(dev_priv)) has_full_ppgtt = false; /* emulation is too hard */ + if (!has_aliasing_ppgtt) + return 0; + /* * We don't allow disabling PPGTT for gen9+ as it's a requirement for * execlists, the sole mechanism available to submit work. */ - if (INTEL_INFO(dev)->gen < 9 && - (enable_ppgtt == 0 || !has_aliasing_ppgtt)) + if (enable_ppgtt == 0 && INTEL_GEN(dev_priv) < 9) return 0; if (enable_ppgtt == 1) @@ -135,19 +146,19 @@ static int sanitize_enable_ppgtt(struct drm_device *dev, int enable_ppgtt) #ifdef CONFIG_INTEL_IOMMU /* Disable ppgtt on SNB if VT-d is on. */ - if (INTEL_INFO(dev)->gen == 6 && intel_iommu_gfx_mapped) { + if (IS_GEN6(dev_priv) && intel_iommu_gfx_mapped) { DRM_INFO("Disabling PPGTT because VT-d is on\n"); return 0; } #endif /* Early VLV doesn't have this */ - if (IS_VALLEYVIEW(dev) && dev->pdev->revision < 0xb) { + if (IS_VALLEYVIEW(dev_priv) && dev_priv->drm.pdev->revision < 0xb) { DRM_DEBUG_DRIVER("disabling PPGTT on pre-B3 step VLV\n"); return 0; } - if (INTEL_INFO(dev)->gen >= 8 && i915.enable_execlists) + if (INTEL_GEN(dev_priv) >= 8 && i915.enable_execlists) return has_full_48bit_ppgtt ? 3 : 2; else return has_aliasing_ppgtt ? 1 : 0; @@ -658,6 +669,7 @@ static int gen8_write_pdp(struct drm_i915_gem_request *req, unsigned entry, dma_addr_t addr) { + struct intel_ringbuffer *ring = req->ring; struct intel_engine_cs *engine = req->engine; int ret; @@ -667,13 +679,13 @@ static int gen8_write_pdp(struct drm_i915_gem_request *req, if (ret) return ret; - intel_ring_emit(engine, MI_LOAD_REGISTER_IMM(1)); - intel_ring_emit_reg(engine, GEN8_RING_PDP_UDW(engine, entry)); - intel_ring_emit(engine, upper_32_bits(addr)); - intel_ring_emit(engine, MI_LOAD_REGISTER_IMM(1)); - intel_ring_emit_reg(engine, GEN8_RING_PDP_LDW(engine, entry)); - intel_ring_emit(engine, lower_32_bits(addr)); - intel_ring_advance(engine); + intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1)); + intel_ring_emit_reg(ring, GEN8_RING_PDP_UDW(engine, entry)); + intel_ring_emit(ring, upper_32_bits(addr)); + intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1)); + intel_ring_emit_reg(ring, GEN8_RING_PDP_LDW(engine, entry)); + intel_ring_emit(ring, lower_32_bits(addr)); + intel_ring_advance(ring); return 0; } @@ -866,6 +878,7 @@ static void gen8_free_page_tables(struct drm_device *dev, static int gen8_init_scratch(struct i915_address_space *vm) { struct drm_device *dev = vm->dev; + int ret; vm->scratch_page = alloc_scratch_page(dev); if (IS_ERR(vm->scratch_page)) @@ -873,24 +886,21 @@ static int gen8_init_scratch(struct i915_address_space *vm) vm->scratch_pt = alloc_pt(dev); if (IS_ERR(vm->scratch_pt)) { - free_scratch_page(dev, vm->scratch_page); - return PTR_ERR(vm->scratch_pt); + ret = PTR_ERR(vm->scratch_pt); + goto free_scratch_page; } vm->scratch_pd = alloc_pd(dev); if (IS_ERR(vm->scratch_pd)) { - free_pt(dev, vm->scratch_pt); - free_scratch_page(dev, vm->scratch_page); - return PTR_ERR(vm->scratch_pd); + ret = PTR_ERR(vm->scratch_pd); + goto free_pt; } if (USES_FULL_48BIT_PPGTT(dev)) { vm->scratch_pdp = alloc_pdp(dev); if (IS_ERR(vm->scratch_pdp)) { - free_pd(dev, vm->scratch_pd); - free_pt(dev, vm->scratch_pt); - free_scratch_page(dev, vm->scratch_page); - return PTR_ERR(vm->scratch_pdp); + ret = PTR_ERR(vm->scratch_pdp); + goto free_pd; } } @@ -900,6 +910,15 @@ static int gen8_init_scratch(struct i915_address_space *vm) gen8_initialize_pdp(vm, vm->scratch_pdp); return 0; + +free_pd: + free_pd(dev, vm->scratch_pd); +free_pt: + free_pt(dev, vm->scratch_pt); +free_scratch_page: + free_scratch_page(dev, vm->scratch_page); + + return ret; } static int gen8_ppgtt_notify_vgt(struct i915_hw_ppgtt *ppgtt, bool create) @@ -978,7 +997,7 @@ static void gen8_ppgtt_cleanup(struct i915_address_space *vm) { struct i915_hw_ppgtt *ppgtt = i915_vm_to_ppgtt(vm); - if (intel_vgpu_active(vm->dev)) + if (intel_vgpu_active(to_i915(vm->dev))) gen8_ppgtt_notify_vgt(ppgtt, false); if (!USES_FULL_48BIT_PPGTT(ppgtt->base.dev)) @@ -1529,14 +1548,14 @@ static int gen8_ppgtt_init(struct i915_hw_ppgtt *ppgtt) 0, 0, GEN8_PML4E_SHIFT); - if (intel_vgpu_active(ppgtt->base.dev)) { + if (intel_vgpu_active(to_i915(ppgtt->base.dev))) { ret = gen8_preallocate_top_level_pdps(ppgtt); if (ret) goto free_scratch; } } - if (intel_vgpu_active(ppgtt->base.dev)) + if (intel_vgpu_active(to_i915(ppgtt->base.dev))) gen8_ppgtt_notify_vgt(ppgtt, true); return 0; @@ -1552,13 +1571,13 @@ static void gen6_dump_ppgtt(struct i915_hw_ppgtt *ppgtt, struct seq_file *m) struct i915_page_table *unused; gen6_pte_t scratch_pte; uint32_t pd_entry; - uint32_t pte, pde, temp; + uint32_t pte, pde; uint32_t start = ppgtt->base.start, length = ppgtt->base.total; scratch_pte = vm->pte_encode(px_dma(vm->scratch_page), I915_CACHE_LLC, true, 0); - gen6_for_each_pde(unused, &ppgtt->pd, start, length, temp, pde) { + gen6_for_each_pde(unused, &ppgtt->pd, start, length, pde) { u32 expected; gen6_pte_t *pt_vaddr; const dma_addr_t pt_addr = px_dma(ppgtt->pd.page_table[pde]); @@ -1622,9 +1641,9 @@ static void gen6_write_page_range(struct drm_i915_private *dev_priv, { struct i915_ggtt *ggtt = &dev_priv->ggtt; struct i915_page_table *pt; - uint32_t pde, temp; + uint32_t pde; - gen6_for_each_pde(pt, pd, start, length, temp, pde) + gen6_for_each_pde(pt, pd, start, length, pde) gen6_write_pde(pd, pde, pt); /* Make sure write is complete before other code can use this page @@ -1642,6 +1661,7 @@ static uint32_t get_pd_offset(struct i915_hw_ppgtt *ppgtt) static int hsw_mm_switch(struct i915_hw_ppgtt *ppgtt, struct drm_i915_gem_request *req) { + struct intel_ringbuffer *ring = req->ring; struct intel_engine_cs *engine = req->engine; int ret; @@ -1654,31 +1674,21 @@ static int hsw_mm_switch(struct i915_hw_ppgtt *ppgtt, if (ret) return ret; - intel_ring_emit(engine, MI_LOAD_REGISTER_IMM(2)); - intel_ring_emit_reg(engine, RING_PP_DIR_DCLV(engine)); - intel_ring_emit(engine, PP_DIR_DCLV_2G); - intel_ring_emit_reg(engine, RING_PP_DIR_BASE(engine)); - intel_ring_emit(engine, get_pd_offset(ppgtt)); - intel_ring_emit(engine, MI_NOOP); - intel_ring_advance(engine); + intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(2)); + intel_ring_emit_reg(ring, RING_PP_DIR_DCLV(engine)); + intel_ring_emit(ring, PP_DIR_DCLV_2G); + intel_ring_emit_reg(ring, RING_PP_DIR_BASE(engine)); + intel_ring_emit(ring, get_pd_offset(ppgtt)); + intel_ring_emit(ring, MI_NOOP); + intel_ring_advance(ring); return 0; } -static int vgpu_mm_switch(struct i915_hw_ppgtt *ppgtt, - struct drm_i915_gem_request *req) -{ - struct intel_engine_cs *engine = req->engine; - struct drm_i915_private *dev_priv = to_i915(ppgtt->base.dev); - - I915_WRITE(RING_PP_DIR_DCLV(engine), PP_DIR_DCLV_2G); - I915_WRITE(RING_PP_DIR_BASE(engine), get_pd_offset(ppgtt)); - return 0; -} - static int gen7_mm_switch(struct i915_hw_ppgtt *ppgtt, struct drm_i915_gem_request *req) { + struct intel_ringbuffer *ring = req->ring; struct intel_engine_cs *engine = req->engine; int ret; @@ -1691,17 +1701,18 @@ static int gen7_mm_switch(struct i915_hw_ppgtt *ppgtt, if (ret) return ret; - intel_ring_emit(engine, MI_LOAD_REGISTER_IMM(2)); - intel_ring_emit_reg(engine, RING_PP_DIR_DCLV(engine)); - intel_ring_emit(engine, PP_DIR_DCLV_2G); - intel_ring_emit_reg(engine, RING_PP_DIR_BASE(engine)); - intel_ring_emit(engine, get_pd_offset(ppgtt)); - intel_ring_emit(engine, MI_NOOP); - intel_ring_advance(engine); + intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(2)); + intel_ring_emit_reg(ring, RING_PP_DIR_DCLV(engine)); + intel_ring_emit(ring, PP_DIR_DCLV_2G); + intel_ring_emit_reg(ring, RING_PP_DIR_BASE(engine)); + intel_ring_emit(ring, get_pd_offset(ppgtt)); + intel_ring_emit(ring, MI_NOOP); + intel_ring_advance(ring); /* XXX: RCS is the only one to auto invalidate the TLBs? */ if (engine->id != RCS) { - ret = engine->flush(req, I915_GEM_GPU_DOMAINS, I915_GEM_GPU_DOMAINS); + ret = engine->flush(req, + I915_GEM_GPU_DOMAINS, I915_GEM_GPU_DOMAINS); if (ret) return ret; } @@ -1713,21 +1724,16 @@ static int gen6_mm_switch(struct i915_hw_ppgtt *ppgtt, struct drm_i915_gem_request *req) { struct intel_engine_cs *engine = req->engine; - struct drm_device *dev = ppgtt->base.dev; - struct drm_i915_private *dev_priv = dev->dev_private; - + struct drm_i915_private *dev_priv = req->i915; I915_WRITE(RING_PP_DIR_DCLV(engine), PP_DIR_DCLV_2G); I915_WRITE(RING_PP_DIR_BASE(engine), get_pd_offset(ppgtt)); - - POSTING_READ(RING_PP_DIR_DCLV(engine)); - return 0; } static void gen8_ppgtt_enable(struct drm_device *dev) { - struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_i915_private *dev_priv = to_i915(dev); struct intel_engine_cs *engine; for_each_engine(engine, dev_priv) { @@ -1739,7 +1745,7 @@ static void gen8_ppgtt_enable(struct drm_device *dev) static void gen7_ppgtt_enable(struct drm_device *dev) { - struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_i915_private *dev_priv = to_i915(dev); struct intel_engine_cs *engine; uint32_t ecochk, ecobits; @@ -1764,7 +1770,7 @@ static void gen7_ppgtt_enable(struct drm_device *dev) static void gen6_ppgtt_enable(struct drm_device *dev) { - struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_i915_private *dev_priv = to_i915(dev); uint32_t ecochk, gab_ctl, ecobits; ecobits = I915_READ(GAC_ECO_BITS); @@ -1821,20 +1827,19 @@ static void gen6_ppgtt_insert_entries(struct i915_address_space *vm, enum i915_cache_level cache_level, u32 flags) { struct i915_hw_ppgtt *ppgtt = i915_vm_to_ppgtt(vm); - gen6_pte_t *pt_vaddr; unsigned first_entry = start >> PAGE_SHIFT; unsigned act_pt = first_entry / GEN6_PTES; unsigned act_pte = first_entry % GEN6_PTES; - struct sg_page_iter sg_iter; + gen6_pte_t *pt_vaddr = NULL; + struct sgt_iter sgt_iter; + dma_addr_t addr; - pt_vaddr = NULL; - for_each_sg_page(pages->sgl, &sg_iter, pages->nents, 0) { + for_each_sgt_dma(addr, sgt_iter, pages) { if (pt_vaddr == NULL) pt_vaddr = kmap_px(ppgtt->pd.page_table[act_pt]); pt_vaddr[act_pte] = - vm->pte_encode(sg_page_iter_dma_address(&sg_iter), - cache_level, true, flags); + vm->pte_encode(addr, cache_level, true, flags); if (++act_pte == GEN6_PTES) { kunmap_px(ppgtt, pt_vaddr); @@ -1843,6 +1848,7 @@ static void gen6_ppgtt_insert_entries(struct i915_address_space *vm, act_pte = 0; } } + if (pt_vaddr) kunmap_px(ppgtt, pt_vaddr); } @@ -1857,7 +1863,7 @@ static int gen6_alloc_va_range(struct i915_address_space *vm, struct i915_hw_ppgtt *ppgtt = i915_vm_to_ppgtt(vm); struct i915_page_table *pt; uint32_t start, length, start_save, length_save; - uint32_t pde, temp; + uint32_t pde; int ret; if (WARN_ON(start_in + length_in > ppgtt->base.total)) @@ -1873,7 +1879,7 @@ static int gen6_alloc_va_range(struct i915_address_space *vm, * need allocation. The second stage marks use ptes within the page * tables. */ - gen6_for_each_pde(pt, &ppgtt->pd, start, length, temp, pde) { + gen6_for_each_pde(pt, &ppgtt->pd, start, length, pde) { if (pt != vm->scratch_pt) { WARN_ON(bitmap_empty(pt->used_ptes, GEN6_PTES)); continue; @@ -1898,7 +1904,7 @@ static int gen6_alloc_va_range(struct i915_address_space *vm, start = start_save; length = length_save; - gen6_for_each_pde(pt, &ppgtt->pd, start, length, temp, pde) { + gen6_for_each_pde(pt, &ppgtt->pd, start, length, pde) { DECLARE_BITMAP(tmp_bitmap, GEN6_PTES); bitmap_zero(tmp_bitmap, GEN6_PTES); @@ -1967,15 +1973,16 @@ static void gen6_free_scratch(struct i915_address_space *vm) static void gen6_ppgtt_cleanup(struct i915_address_space *vm) { struct i915_hw_ppgtt *ppgtt = i915_vm_to_ppgtt(vm); + struct i915_page_directory *pd = &ppgtt->pd; + struct drm_device *dev = vm->dev; struct i915_page_table *pt; uint32_t pde; drm_mm_remove_node(&ppgtt->node); - gen6_for_all_pdes(pt, ppgtt, pde) { + gen6_for_all_pdes(pt, pd, pde) if (pt != vm->scratch_pt) - free_pt(ppgtt->base.dev, pt); - } + free_pt(dev, pt); gen6_free_scratch(vm); } @@ -2041,9 +2048,9 @@ static void gen6_scratch_va_range(struct i915_hw_ppgtt *ppgtt, uint64_t start, uint64_t length) { struct i915_page_table *unused; - uint32_t pde, temp; + uint32_t pde; - gen6_for_each_pde(unused, &ppgtt->pd, start, length, temp, pde) + gen6_for_each_pde(unused, &ppgtt->pd, start, length, pde) ppgtt->pd.page_table[pde] = ppgtt->base.scratch_pt; } @@ -2055,18 +2062,15 @@ static int gen6_ppgtt_init(struct i915_hw_ppgtt *ppgtt) int ret; ppgtt->base.pte_encode = ggtt->base.pte_encode; - if (IS_GEN6(dev)) { + if (intel_vgpu_active(dev_priv) || IS_GEN6(dev)) ppgtt->switch_mm = gen6_mm_switch; - } else if (IS_HASWELL(dev)) { + else if (IS_HASWELL(dev)) ppgtt->switch_mm = hsw_mm_switch; - } else if (IS_GEN7(dev)) { + else if (IS_GEN7(dev)) ppgtt->switch_mm = gen7_mm_switch; - } else + else BUG(); - if (intel_vgpu_active(dev)) - ppgtt->switch_mm = vgpu_mm_switch; - ret = gen6_ppgtt_alloc(ppgtt); if (ret) return ret; @@ -2115,7 +2119,7 @@ static void i915_address_space_init(struct i915_address_space *vm, struct drm_i915_private *dev_priv) { drm_mm_init(&vm->mm, vm->start, vm->total); - vm->dev = dev_priv->dev; + vm->dev = &dev_priv->drm; INIT_LIST_HEAD(&vm->active_list); INIT_LIST_HEAD(&vm->inactive_list); list_add_tail(&vm->global_link, &dev_priv->vm_list); @@ -2123,7 +2127,7 @@ static void i915_address_space_init(struct i915_address_space *vm, static void gtt_write_workarounds(struct drm_device *dev) { - struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_i915_private *dev_priv = to_i915(dev); /* This function is for gtt related workarounds. This function is * called on driver load and after a GPU reset, so you can place @@ -2140,9 +2144,9 @@ static void gtt_write_workarounds(struct drm_device *dev) I915_WRITE(GEN8_L3_LRA_1_GPGPU, GEN9_L3_LRA_1_GPGPU_DEFAULT_VALUE_BXT); } -int i915_ppgtt_init(struct drm_device *dev, struct i915_hw_ppgtt *ppgtt) +static int i915_ppgtt_init(struct drm_device *dev, struct i915_hw_ppgtt *ppgtt) { - struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_i915_private *dev_priv = to_i915(dev); int ret = 0; ret = __hw_ppgtt_init(dev, ppgtt); @@ -2179,20 +2183,6 @@ int i915_ppgtt_init_hw(struct drm_device *dev) return 0; } -int i915_ppgtt_init_ring(struct drm_i915_gem_request *req) -{ - struct drm_i915_private *dev_priv = req->i915; - struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt; - - if (i915.enable_execlists) - return 0; - - if (!ppgtt) - return 0; - - return ppgtt->switch_mm(ppgtt, req); -} - struct i915_hw_ppgtt * i915_ppgtt_create(struct drm_device *dev, struct drm_i915_file_private *fpriv) { @@ -2257,8 +2247,8 @@ static bool do_idling(struct drm_i915_private *dev_priv) if (unlikely(ggtt->do_idle_maps)) { dev_priv->mm.interruptible = false; - if (i915_gpu_idle(dev_priv->dev)) { - DRM_ERROR("Couldn't idle GPU\n"); + if (i915_gem_wait_for_idle(dev_priv)) { + DRM_ERROR("Failed to wait for idle; VT'd may hang.\n"); /* Wait a bit, in hopes it avoids the hang */ udelay(10); } @@ -2275,12 +2265,11 @@ static void undo_idling(struct drm_i915_private *dev_priv, bool interruptible) dev_priv->mm.interruptible = interruptible; } -void i915_check_and_clear_faults(struct drm_device *dev) +void i915_check_and_clear_faults(struct drm_i915_private *dev_priv) { - struct drm_i915_private *dev_priv = dev->dev_private; struct intel_engine_cs *engine; - if (INTEL_INFO(dev)->gen < 6) + if (INTEL_INFO(dev_priv)->gen < 6) return; for_each_engine(engine, dev_priv) { @@ -2324,7 +2313,7 @@ void i915_gem_suspend_gtt_mappings(struct drm_device *dev) if (INTEL_INFO(dev)->gen < 6) return; - i915_check_and_clear_faults(dev); + i915_check_and_clear_faults(dev_priv); ggtt->base.clear_range(&ggtt->base, ggtt->base.start, ggtt->base.total, true); @@ -2352,29 +2341,49 @@ static void gen8_set_pte(void __iomem *addr, gen8_pte_t pte) #endif } +static void gen8_ggtt_insert_page(struct i915_address_space *vm, + dma_addr_t addr, + uint64_t offset, + enum i915_cache_level level, + u32 unused) +{ + struct drm_i915_private *dev_priv = to_i915(vm->dev); + gen8_pte_t __iomem *pte = + (gen8_pte_t __iomem *)dev_priv->ggtt.gsm + + (offset >> PAGE_SHIFT); + int rpm_atomic_seq; + + rpm_atomic_seq = assert_rpm_atomic_begin(dev_priv); + + gen8_set_pte(pte, gen8_pte_encode(addr, level, true)); + + I915_WRITE(GFX_FLSH_CNTL_GEN6, GFX_FLSH_CNTL_EN); + POSTING_READ(GFX_FLSH_CNTL_GEN6); + + assert_rpm_atomic_end(dev_priv, rpm_atomic_seq); +} + static void gen8_ggtt_insert_entries(struct i915_address_space *vm, struct sg_table *st, uint64_t start, enum i915_cache_level level, u32 unused) { struct drm_i915_private *dev_priv = to_i915(vm->dev); - struct i915_ggtt *ggtt = &dev_priv->ggtt; - unsigned first_entry = start >> PAGE_SHIFT; - gen8_pte_t __iomem *gtt_entries = - (gen8_pte_t __iomem *)ggtt->gsm + first_entry; - int i = 0; - struct sg_page_iter sg_iter; - dma_addr_t addr = 0; /* shut up gcc */ + struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); + struct sgt_iter sgt_iter; + gen8_pte_t __iomem *gtt_entries; + gen8_pte_t gtt_entry; + dma_addr_t addr; int rpm_atomic_seq; + int i = 0; rpm_atomic_seq = assert_rpm_atomic_begin(dev_priv); - for_each_sg_page(st->sgl, &sg_iter, st->nents, 0) { - addr = sg_dma_address(sg_iter.sg) + - (sg_iter.sg_pgoffset << PAGE_SHIFT); - gen8_set_pte(>t_entries[i], - gen8_pte_encode(addr, level, true)); - i++; + gtt_entries = (gen8_pte_t __iomem *)ggtt->gsm + (start >> PAGE_SHIFT); + + for_each_sgt_dma(addr, sgt_iter, st) { + gtt_entry = gen8_pte_encode(addr, level, true); + gen8_set_pte(>t_entries[i++], gtt_entry); } /* @@ -2385,8 +2394,7 @@ static void gen8_ggtt_insert_entries(struct i915_address_space *vm, * hardware should work, we must keep this posting read for paranoia. */ if (i != 0) - WARN_ON(readq(>t_entries[i-1]) - != gen8_pte_encode(addr, level, true)); + WARN_ON(readq(>t_entries[i-1]) != gtt_entry); /* 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 @@ -2424,6 +2432,28 @@ static void gen8_ggtt_insert_entries__BKL(struct i915_address_space *vm, stop_machine(gen8_ggtt_insert_entries__cb, &arg, NULL); } +static void gen6_ggtt_insert_page(struct i915_address_space *vm, + dma_addr_t addr, + uint64_t offset, + enum i915_cache_level level, + u32 flags) +{ + struct drm_i915_private *dev_priv = to_i915(vm->dev); + gen6_pte_t __iomem *pte = + (gen6_pte_t __iomem *)dev_priv->ggtt.gsm + + (offset >> PAGE_SHIFT); + int rpm_atomic_seq; + + rpm_atomic_seq = assert_rpm_atomic_begin(dev_priv); + + iowrite32(vm->pte_encode(addr, level, true, flags), pte); + + I915_WRITE(GFX_FLSH_CNTL_GEN6, GFX_FLSH_CNTL_EN); + POSTING_READ(GFX_FLSH_CNTL_GEN6); + + assert_rpm_atomic_end(dev_priv, rpm_atomic_seq); +} + /* * Binds an object into the global gtt with the specified cache level. The object * will be accessible to the GPU via commands whose operands reference offsets @@ -2436,21 +2466,21 @@ static void gen6_ggtt_insert_entries(struct i915_address_space *vm, enum i915_cache_level level, u32 flags) { struct drm_i915_private *dev_priv = to_i915(vm->dev); - struct i915_ggtt *ggtt = &dev_priv->ggtt; - unsigned first_entry = start >> PAGE_SHIFT; - gen6_pte_t __iomem *gtt_entries = - (gen6_pte_t __iomem *)ggtt->gsm + first_entry; - int i = 0; - struct sg_page_iter sg_iter; - dma_addr_t addr = 0; + struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); + struct sgt_iter sgt_iter; + gen6_pte_t __iomem *gtt_entries; + gen6_pte_t gtt_entry; + dma_addr_t addr; int rpm_atomic_seq; + int i = 0; rpm_atomic_seq = assert_rpm_atomic_begin(dev_priv); - for_each_sg_page(st->sgl, &sg_iter, st->nents, 0) { - addr = sg_page_iter_dma_address(&sg_iter); - iowrite32(vm->pte_encode(addr, level, true, flags), >t_entries[i]); - i++; + gtt_entries = (gen6_pte_t __iomem *)ggtt->gsm + (start >> PAGE_SHIFT); + + for_each_sgt_dma(addr, sgt_iter, st) { + gtt_entry = vm->pte_encode(addr, level, true, flags); + iowrite32(gtt_entry, >t_entries[i++]); } /* XXX: This serves as a posting read to make sure that the PTE has @@ -2459,10 +2489,8 @@ static void gen6_ggtt_insert_entries(struct i915_address_space *vm, * of NUMA access patterns. Therefore, even with the way we assume * hardware should work, we must keep this posting read for paranoia. */ - if (i != 0) { - unsigned long gtt = readl(>t_entries[i-1]); - WARN_ON(gtt != vm->pte_encode(addr, level, true, flags)); - } + if (i != 0) + WARN_ON(readl(>t_entries[i-1]) != gtt_entry); /* 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 @@ -2474,13 +2502,20 @@ static void gen6_ggtt_insert_entries(struct i915_address_space *vm, assert_rpm_atomic_end(dev_priv, rpm_atomic_seq); } +static void nop_clear_range(struct i915_address_space *vm, + uint64_t start, + uint64_t length, + bool use_scratch) +{ +} + static void gen8_ggtt_clear_range(struct i915_address_space *vm, uint64_t start, uint64_t length, bool use_scratch) { struct drm_i915_private *dev_priv = to_i915(vm->dev); - struct i915_ggtt *ggtt = &dev_priv->ggtt; + struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); unsigned first_entry = start >> PAGE_SHIFT; unsigned num_entries = length >> PAGE_SHIFT; gen8_pte_t scratch_pte, __iomem *gtt_base = @@ -2512,7 +2547,7 @@ static void gen6_ggtt_clear_range(struct i915_address_space *vm, bool use_scratch) { struct drm_i915_private *dev_priv = to_i915(vm->dev); - struct i915_ggtt *ggtt = &dev_priv->ggtt; + struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); unsigned first_entry = start >> PAGE_SHIFT; unsigned num_entries = length >> PAGE_SHIFT; gen6_pte_t scratch_pte, __iomem *gtt_base = @@ -2538,12 +2573,30 @@ static void gen6_ggtt_clear_range(struct i915_address_space *vm, assert_rpm_atomic_end(dev_priv, rpm_atomic_seq); } +static void i915_ggtt_insert_page(struct i915_address_space *vm, + dma_addr_t addr, + uint64_t offset, + enum i915_cache_level cache_level, + u32 unused) +{ + struct drm_i915_private *dev_priv = to_i915(vm->dev); + unsigned int flags = (cache_level == I915_CACHE_NONE) ? + AGP_USER_MEMORY : AGP_USER_CACHED_MEMORY; + int rpm_atomic_seq; + + rpm_atomic_seq = assert_rpm_atomic_begin(dev_priv); + + intel_gtt_insert_page(addr, offset >> PAGE_SHIFT, flags); + + assert_rpm_atomic_end(dev_priv, rpm_atomic_seq); +} + static void i915_ggtt_insert_entries(struct i915_address_space *vm, struct sg_table *pages, uint64_t start, enum i915_cache_level cache_level, u32 unused) { - struct drm_i915_private *dev_priv = vm->dev->dev_private; + struct drm_i915_private *dev_priv = to_i915(vm->dev); unsigned int flags = (cache_level == I915_CACHE_NONE) ? AGP_USER_MEMORY : AGP_USER_CACHED_MEMORY; int rpm_atomic_seq; @@ -2561,7 +2614,7 @@ static void i915_ggtt_clear_range(struct i915_address_space *vm, uint64_t length, bool unused) { - struct drm_i915_private *dev_priv = vm->dev->dev_private; + struct drm_i915_private *dev_priv = to_i915(vm->dev); unsigned first_entry = start >> PAGE_SHIFT; unsigned num_entries = length >> PAGE_SHIFT; int rpm_atomic_seq; @@ -2642,7 +2695,7 @@ static int aliasing_gtt_bind_vma(struct i915_vma *vma, static void ggtt_unbind_vma(struct i915_vma *vma) { struct drm_device *dev = vma->vm->dev; - struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_i915_private *dev_priv = to_i915(dev); struct drm_i915_gem_object *obj = vma->obj; const uint64_t size = min_t(uint64_t, obj->base.size, @@ -2668,7 +2721,7 @@ static void ggtt_unbind_vma(struct i915_vma *vma) void i915_gem_gtt_finish_object(struct drm_i915_gem_object *obj) { struct drm_device *dev = obj->base.dev; - struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_i915_private *dev_priv = to_i915(dev); bool interruptible; interruptible = do_idling(dev_priv); @@ -2687,13 +2740,11 @@ static void i915_gtt_color_adjust(struct drm_mm_node *node, if (node->color != color) *start += 4096; - if (!list_empty(&node->node_list)) { - node = list_entry(node->node_list.next, - struct drm_mm_node, - node_list); - if (node->allocated && node->color != color) - *end -= 4096; - } + node = list_first_entry_or_null(&node->node_list, + struct drm_mm_node, + node_list); + if (node && node->allocated && node->color != color) + *end -= 4096; } static int i915_gem_setup_global_gtt(struct drm_device *dev, @@ -2727,11 +2778,9 @@ static int i915_gem_setup_global_gtt(struct drm_device *dev, i915_address_space_init(&ggtt->base, dev_priv); ggtt->base.total += PAGE_SIZE; - if (intel_vgpu_active(dev)) { - ret = intel_vgt_balloon(dev); - if (ret) - return ret; - } + ret = intel_vgt_balloon(dev_priv); + if (ret) + return ret; if (!HAS_LLC(dev)) ggtt->base.mm.color_adjust = i915_gtt_color_adjust; @@ -2831,8 +2880,7 @@ void i915_ggtt_cleanup_hw(struct drm_device *dev) i915_gem_cleanup_stolen(dev); if (drm_mm_initialized(&ggtt->base.mm)) { - if (intel_vgpu_active(dev)) - intel_vgt_deballoon(); + intel_vgt_deballoon(dev_priv); drm_mm_takedown(&ggtt->base.mm); list_del(&ggtt->base.global_link); @@ -3069,13 +3117,16 @@ static int gen8_gmch_probe(struct i915_ggtt *ggtt) ret = ggtt_probe_common(dev, ggtt->size); - ggtt->base.clear_range = gen8_ggtt_clear_range; - if (IS_CHERRYVIEW(dev_priv)) - ggtt->base.insert_entries = gen8_ggtt_insert_entries__BKL; - else - ggtt->base.insert_entries = gen8_ggtt_insert_entries; ggtt->base.bind_vma = ggtt_bind_vma; ggtt->base.unbind_vma = ggtt_unbind_vma; + ggtt->base.insert_page = gen8_ggtt_insert_page; + ggtt->base.clear_range = nop_clear_range; + if (!USES_FULL_PPGTT(dev_priv) || intel_scanout_needs_vtd_wa(dev_priv)) + ggtt->base.clear_range = gen8_ggtt_clear_range; + + ggtt->base.insert_entries = gen8_ggtt_insert_entries; + if (IS_CHERRYVIEW(dev_priv)) + ggtt->base.insert_entries = gen8_ggtt_insert_entries__BKL; return ret; } @@ -3108,6 +3159,7 @@ static int gen6_gmch_probe(struct i915_ggtt *ggtt) ret = ggtt_probe_common(dev, ggtt->size); ggtt->base.clear_range = gen6_ggtt_clear_range; + ggtt->base.insert_page = gen6_ggtt_insert_page; ggtt->base.insert_entries = gen6_ggtt_insert_entries; ggtt->base.bind_vma = ggtt_bind_vma; ggtt->base.unbind_vma = ggtt_unbind_vma; @@ -3129,7 +3181,7 @@ static int i915_gmch_probe(struct i915_ggtt *ggtt) struct drm_i915_private *dev_priv = to_i915(dev); int ret; - ret = intel_gmch_probe(dev_priv->bridge_dev, dev_priv->dev->pdev, NULL); + ret = intel_gmch_probe(dev_priv->bridge_dev, dev_priv->drm.pdev, NULL); if (!ret) { DRM_ERROR("failed to set up gmch\n"); return -EIO; @@ -3138,7 +3190,8 @@ static int i915_gmch_probe(struct i915_ggtt *ggtt) intel_gtt_get(&ggtt->base.total, &ggtt->stolen_size, &ggtt->mappable_base, &ggtt->mappable_end); - ggtt->do_idle_maps = needs_idle_maps(dev_priv->dev); + ggtt->do_idle_maps = needs_idle_maps(&dev_priv->drm); + ggtt->base.insert_page = i915_ggtt_insert_page; ggtt->base.insert_entries = i915_ggtt_insert_entries; ggtt->base.clear_range = i915_ggtt_clear_range; ggtt->base.bind_vma = ggtt_bind_vma; @@ -3219,14 +3272,6 @@ int i915_ggtt_init_hw(struct drm_device *dev) if (intel_iommu_gfx_mapped) DRM_INFO("VT-d active for gfx access\n"); #endif - /* - * i915.enable_ppgtt is read-only, so do an early pass to validate the - * user's requested state against the hardware/driver capabilities. We - * do this now so that we can print out any log messages once rather - * than every time we check intel_enable_ppgtt(). - */ - i915.enable_ppgtt = sanitize_enable_ppgtt(dev, i915.enable_ppgtt); - DRM_DEBUG_DRIVER("ppgtt mode: %i\n", i915.enable_ppgtt); return 0; @@ -3236,15 +3281,22 @@ out_gtt_cleanup: return ret; } +int i915_ggtt_enable_hw(struct drm_device *dev) +{ + if (INTEL_INFO(dev)->gen < 6 && !intel_enable_gtt()) + return -EIO; + + return 0; +} + void i915_gem_restore_gtt_mappings(struct drm_device *dev) { struct drm_i915_private *dev_priv = to_i915(dev); struct i915_ggtt *ggtt = &dev_priv->ggtt; struct drm_i915_gem_object *obj; struct i915_vma *vma; - bool flush; - i915_check_and_clear_faults(dev); + i915_check_and_clear_faults(dev_priv); /* First fill our portion of the GTT with scratch pages */ ggtt->base.clear_range(&ggtt->base, ggtt->base.start, ggtt->base.total, @@ -3252,19 +3304,16 @@ void i915_gem_restore_gtt_mappings(struct drm_device *dev) /* Cache flush objects bound into GGTT and rebind them. */ list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) { - flush = false; list_for_each_entry(vma, &obj->vma_list, obj_link) { if (vma->vm != &ggtt->base) continue; WARN_ON(i915_vma_bind(vma, obj->cache_level, PIN_UPDATE)); - - flush = true; } - if (flush) - i915_gem_clflush_object(obj, obj->pin_display); + if (obj->pin_display) + WARN_ON(i915_gem_object_set_to_gtt_domain(obj, false)); } if (INTEL_INFO(dev)->gen >= 8) { @@ -3390,9 +3439,11 @@ static struct sg_table * intel_rotate_fb_obj_pages(struct intel_rotation_info *rot_info, struct drm_i915_gem_object *obj) { + const size_t n_pages = obj->base.size / PAGE_SIZE; unsigned int size_pages = rot_info->plane[0].width * rot_info->plane[0].height; unsigned int size_pages_uv; - struct sg_page_iter sg_iter; + struct sgt_iter sgt_iter; + dma_addr_t dma_addr; unsigned long i; dma_addr_t *page_addr_list; struct sg_table *st; @@ -3401,7 +3452,7 @@ intel_rotate_fb_obj_pages(struct intel_rotation_info *rot_info, int ret = -ENOMEM; /* Allocate a temporary list of source pages for random access. */ - page_addr_list = drm_malloc_gfp(obj->base.size / PAGE_SIZE, + page_addr_list = drm_malloc_gfp(n_pages, sizeof(dma_addr_t), GFP_TEMPORARY); if (!page_addr_list) @@ -3424,11 +3475,10 @@ intel_rotate_fb_obj_pages(struct intel_rotation_info *rot_info, /* Populate source page list from the object. */ i = 0; - for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, 0) { - page_addr_list[i] = sg_page_iter_dma_address(&sg_iter); - i++; - } + for_each_sgt_dma(dma_addr, sgt_iter, obj->pages) + page_addr_list[i++] = dma_addr; + GEM_BUG_ON(i != n_pages); st->nents = 0; sg = st->sgl; @@ -3626,3 +3676,29 @@ i915_ggtt_view_size(struct drm_i915_gem_object *obj, return obj->base.size; } } + +void __iomem *i915_vma_pin_iomap(struct i915_vma *vma) +{ + void __iomem *ptr; + + lockdep_assert_held(&vma->vm->dev->struct_mutex); + if (WARN_ON(!vma->obj->map_and_fenceable)) + return IO_ERR_PTR(-ENODEV); + + GEM_BUG_ON(!vma->is_ggtt); + GEM_BUG_ON((vma->bound & GLOBAL_BIND) == 0); + + ptr = vma->iomap; + if (ptr == NULL) { + ptr = io_mapping_map_wc(i915_vm_to_ggtt(vma->vm)->mappable, + vma->node.start, + vma->node.size); + if (ptr == NULL) + return IO_ERR_PTR(-ENOMEM); + + vma->iomap = ptr; + } + + vma->pin_count++; + return ptr; +}