diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_gtt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.c | 60 |
1 files changed, 39 insertions, 21 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index d3c3b5b15824..40a2b36b276b 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -240,10 +240,16 @@ static int gen8_ppgtt_enable(struct drm_device *dev) for_each_ring(ring, dev_priv, j) { ret = gen8_write_pdp(ring, i, addr); if (ret) - return ret; + goto err_out; } } return 0; + +err_out: + for_each_ring(ring, dev_priv, j) + I915_WRITE(RING_MODE_GEN7(ring), + _MASKED_BIT_DISABLE(GFX_PPGTT_ENABLE)); + return ret; } static void gen8_ppgtt_clear_range(struct i915_address_space *vm, @@ -293,23 +299,23 @@ static void gen8_ppgtt_insert_entries(struct i915_address_space *vm, unsigned act_pte = first_entry % GEN8_PTES_PER_PAGE; struct sg_page_iter sg_iter; - pt_vaddr = kmap_atomic(&ppgtt->gen8_pt_pages[act_pt]); + pt_vaddr = NULL; for_each_sg_page(pages->sgl, &sg_iter, pages->nents, 0) { - dma_addr_t page_addr; + if (pt_vaddr == NULL) + pt_vaddr = kmap_atomic(&ppgtt->gen8_pt_pages[act_pt]); - page_addr = sg_dma_address(sg_iter.sg) + - (sg_iter.sg_pgoffset << PAGE_SHIFT); - pt_vaddr[act_pte] = gen8_pte_encode(page_addr, cache_level, - true); + pt_vaddr[act_pte] = + gen8_pte_encode(sg_page_iter_dma_address(&sg_iter), + cache_level, true); if (++act_pte == GEN8_PTES_PER_PAGE) { kunmap_atomic(pt_vaddr); + pt_vaddr = NULL; act_pt++; - pt_vaddr = kmap_atomic(&ppgtt->gen8_pt_pages[act_pt]); act_pte = 0; - } } - kunmap_atomic(pt_vaddr); + if (pt_vaddr) + kunmap_atomic(pt_vaddr); } static void gen8_ppgtt_cleanup(struct i915_address_space *vm) @@ -318,6 +324,8 @@ static void gen8_ppgtt_cleanup(struct i915_address_space *vm) container_of(vm, struct i915_hw_ppgtt, base); int i, j; + drm_mm_takedown(&vm->mm); + for (i = 0; i < ppgtt->num_pd_pages ; i++) { if (ppgtt->pd_dma_addr[i]) { pci_unmap_page(ppgtt->base.dev->pdev, @@ -381,6 +389,8 @@ static int gen8_ppgtt_init(struct i915_hw_ppgtt *ppgtt, uint64_t size) ppgtt->base.clear_range = gen8_ppgtt_clear_range; ppgtt->base.insert_entries = gen8_ppgtt_insert_entries; ppgtt->base.cleanup = gen8_ppgtt_cleanup; + ppgtt->base.start = 0; + ppgtt->base.total = ppgtt->num_pt_pages * GEN8_PTES_PER_PAGE * PAGE_SIZE; BUG_ON(ppgtt->num_pd_pages > GEN8_LEGACY_PDPS); @@ -573,21 +583,23 @@ static void gen6_ppgtt_insert_entries(struct i915_address_space *vm, unsigned act_pte = first_entry % I915_PPGTT_PT_ENTRIES; struct sg_page_iter sg_iter; - pt_vaddr = kmap_atomic(ppgtt->pt_pages[act_pt]); + pt_vaddr = NULL; for_each_sg_page(pages->sgl, &sg_iter, pages->nents, 0) { - dma_addr_t page_addr; + if (pt_vaddr == NULL) + pt_vaddr = kmap_atomic(ppgtt->pt_pages[act_pt]); - page_addr = sg_page_iter_dma_address(&sg_iter); - pt_vaddr[act_pte] = vm->pte_encode(page_addr, cache_level, true); + pt_vaddr[act_pte] = + vm->pte_encode(sg_page_iter_dma_address(&sg_iter), + cache_level, true); if (++act_pte == I915_PPGTT_PT_ENTRIES) { kunmap_atomic(pt_vaddr); + pt_vaddr = NULL; act_pt++; - pt_vaddr = kmap_atomic(ppgtt->pt_pages[act_pt]); act_pte = 0; - } } - kunmap_atomic(pt_vaddr); + if (pt_vaddr) + kunmap_atomic(pt_vaddr); } static void gen6_ppgtt_cleanup(struct i915_address_space *vm) @@ -632,6 +644,8 @@ static int gen6_ppgtt_init(struct i915_hw_ppgtt *ppgtt) ppgtt->base.insert_entries = gen6_ppgtt_insert_entries; ppgtt->base.cleanup = gen6_ppgtt_cleanup; ppgtt->base.scratch = dev_priv->gtt.base.scratch; + ppgtt->base.start = 0; + ppgtt->base.total = GEN6_PPGTT_PD_ENTRIES * I915_PPGTT_PT_ENTRIES * PAGE_SIZE; ppgtt->pt_pages = kcalloc(ppgtt->num_pd_entries, sizeof(struct page *), GFP_KERNEL); if (!ppgtt->pt_pages) @@ -1124,7 +1138,6 @@ void i915_gem_setup_global_gtt(struct drm_device *dev, 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.base.start = start; @@ -1265,14 +1278,14 @@ static int ggtt_probe_common(struct drm_device *dev, size_t gtt_size) { struct drm_i915_private *dev_priv = dev->dev_private; - phys_addr_t gtt_bus_addr; + phys_addr_t gtt_phys_addr; int ret; /* For Modern GENs the PTEs and register space are split in the BAR */ - gtt_bus_addr = pci_resource_start(dev->pdev, 0) + + gtt_phys_addr = pci_resource_start(dev->pdev, 0) + (pci_resource_len(dev->pdev, 0) / 2); - dev_priv->gtt.gsm = ioremap_wc(gtt_bus_addr, gtt_size); + dev_priv->gtt.gsm = ioremap_wc(gtt_phys_addr, gtt_size); if (!dev_priv->gtt.gsm) { DRM_ERROR("Failed to map the gtt page table\n"); return -ENOMEM; @@ -1400,6 +1413,8 @@ static void gen6_gmch_remove(struct i915_address_space *vm) { struct i915_gtt *gtt = container_of(vm, struct i915_gtt, base); + + drm_mm_takedown(&vm->mm); iounmap(gtt->gsm); teardown_scratch_page(vm->dev); } @@ -1425,6 +1440,9 @@ static int i915_gmch_probe(struct drm_device *dev, dev_priv->gtt.base.clear_range = i915_ggtt_clear_range; dev_priv->gtt.base.insert_entries = i915_ggtt_insert_entries; + if (unlikely(dev_priv->gtt.do_idle_maps)) + DRM_INFO("applying Ironlake quirks for intel_iommu\n"); + return 0; } |