mirror of https://gitee.com/openkylin/linux.git
drm/i915/gtt: Clean up GGTT probing code
Use less pointers with the probing code, making it much less confusing to read. Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
This commit is contained in:
Joonas Lahtinen
parent
62106b4f6b
commit
d507d73578
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@ -3034,20 +3034,16 @@ static void chv_setup_private_ppat(struct drm_i915_private *dev_priv)
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I915_WRITE(GEN8_PRIVATE_PAT_HI, pat >> 32);
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}
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static int gen8_gmch_probe(struct drm_device *dev,
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u64 *gtt_total,
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size_t *stolen,
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phys_addr_t *mappable_base,
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u64 *mappable_end)
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static int gen8_gmch_probe(struct i915_ggtt *ggtt)
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{
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struct drm_device *dev = ggtt->base.dev;
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struct drm_i915_private *dev_priv = dev->dev_private;
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u64 gtt_size;
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u16 snb_gmch_ctl;
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int ret;
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/* TODO: We're not aware of mappable constraints on gen8 yet */
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*mappable_base = pci_resource_start(dev->pdev, 2);
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*mappable_end = pci_resource_len(dev->pdev, 2);
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ggtt->mappable_base = pci_resource_start(dev->pdev, 2);
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ggtt->mappable_end = pci_resource_len(dev->pdev, 2);
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if (!pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(39)))
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pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(39));
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@ -3055,55 +3051,51 @@ static int gen8_gmch_probe(struct drm_device *dev,
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pci_read_config_word(dev->pdev, SNB_GMCH_CTRL, &snb_gmch_ctl);
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if (INTEL_INFO(dev)->gen >= 9) {
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*stolen = gen9_get_stolen_size(snb_gmch_ctl);
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gtt_size = gen8_get_total_gtt_size(snb_gmch_ctl);
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ggtt->stolen_size = gen9_get_stolen_size(snb_gmch_ctl);
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ggtt->size = gen8_get_total_gtt_size(snb_gmch_ctl);
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} else if (IS_CHERRYVIEW(dev)) {
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*stolen = chv_get_stolen_size(snb_gmch_ctl);
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gtt_size = chv_get_total_gtt_size(snb_gmch_ctl);
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ggtt->stolen_size = chv_get_stolen_size(snb_gmch_ctl);
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ggtt->size = chv_get_total_gtt_size(snb_gmch_ctl);
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} else {
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*stolen = gen8_get_stolen_size(snb_gmch_ctl);
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gtt_size = gen8_get_total_gtt_size(snb_gmch_ctl);
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ggtt->stolen_size = gen8_get_stolen_size(snb_gmch_ctl);
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ggtt->size = gen8_get_total_gtt_size(snb_gmch_ctl);
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}
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*gtt_total = (gtt_size / sizeof(gen8_pte_t)) << PAGE_SHIFT;
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ggtt->base.total = (ggtt->size / sizeof(gen8_pte_t)) << PAGE_SHIFT;
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if (IS_CHERRYVIEW(dev) || IS_BROXTON(dev))
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chv_setup_private_ppat(dev_priv);
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else
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bdw_setup_private_ppat(dev_priv);
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ret = ggtt_probe_common(dev, gtt_size);
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dev_priv->ggtt.base.clear_range = gen8_ggtt_clear_range;
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dev_priv->ggtt.base.insert_entries = gen8_ggtt_insert_entries;
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dev_priv->ggtt.base.bind_vma = ggtt_bind_vma;
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dev_priv->ggtt.base.unbind_vma = ggtt_unbind_vma;
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ret = ggtt_probe_common(dev, ggtt->size);
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ggtt->base.clear_range = gen8_ggtt_clear_range;
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if (IS_CHERRYVIEW(dev_priv))
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dev_priv->ggtt.base.insert_entries = gen8_ggtt_insert_entries__BKL;
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ggtt->base.insert_entries = gen8_ggtt_insert_entries__BKL;
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else
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ggtt->base.insert_entries = gen8_ggtt_insert_entries;
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ggtt->base.bind_vma = ggtt_bind_vma;
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ggtt->base.unbind_vma = ggtt_unbind_vma;
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return ret;
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}
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static int gen6_gmch_probe(struct drm_device *dev,
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u64 *gtt_total,
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size_t *stolen,
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phys_addr_t *mappable_base,
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u64 *mappable_end)
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static int gen6_gmch_probe(struct i915_ggtt *ggtt)
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{
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struct drm_i915_private *dev_priv = dev->dev_private;
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unsigned int gtt_size;
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struct drm_device *dev = ggtt->base.dev;
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u16 snb_gmch_ctl;
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int ret;
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*mappable_base = pci_resource_start(dev->pdev, 2);
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*mappable_end = pci_resource_len(dev->pdev, 2);
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ggtt->mappable_base = pci_resource_start(dev->pdev, 2);
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ggtt->mappable_end = pci_resource_len(dev->pdev, 2);
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/* 64/512MB is the current min/max we actually know of, but this is just
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* a coarse sanity check.
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*/
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if ((*mappable_end < (64<<20) || (*mappable_end > (512<<20)))) {
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DRM_ERROR("Unknown GMADR size (%llx)\n", *mappable_end);
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if ((ggtt->mappable_end < (64<<20) || (ggtt->mappable_end > (512<<20)))) {
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DRM_ERROR("Unknown GMADR size (%llx)\n", ggtt->mappable_end);
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return -ENXIO;
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}
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@ -3111,17 +3103,16 @@ static int gen6_gmch_probe(struct drm_device *dev,
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pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(40));
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pci_read_config_word(dev->pdev, SNB_GMCH_CTRL, &snb_gmch_ctl);
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*stolen = gen6_get_stolen_size(snb_gmch_ctl);
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ggtt->stolen_size = gen6_get_stolen_size(snb_gmch_ctl);
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ggtt->size = gen6_get_total_gtt_size(snb_gmch_ctl);
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ggtt->base.total = (ggtt->size / sizeof(gen6_pte_t)) << PAGE_SHIFT;
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gtt_size = gen6_get_total_gtt_size(snb_gmch_ctl);
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*gtt_total = (gtt_size / sizeof(gen6_pte_t)) << PAGE_SHIFT;
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ret = ggtt_probe_common(dev, ggtt->size);
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ret = ggtt_probe_common(dev, gtt_size);
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dev_priv->ggtt.base.clear_range = gen6_ggtt_clear_range;
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dev_priv->ggtt.base.insert_entries = gen6_ggtt_insert_entries;
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dev_priv->ggtt.base.bind_vma = ggtt_bind_vma;
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dev_priv->ggtt.base.unbind_vma = ggtt_unbind_vma;
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ggtt->base.clear_range = gen6_ggtt_clear_range;
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ggtt->base.insert_entries = gen6_ggtt_insert_entries;
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ggtt->base.bind_vma = ggtt_bind_vma;
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ggtt->base.unbind_vma = ggtt_unbind_vma;
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return ret;
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}
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@ -3134,12 +3125,9 @@ static void gen6_gmch_remove(struct i915_address_space *vm)
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free_scratch_page(vm->dev, vm->scratch_page);
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}
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static int i915_gmch_probe(struct drm_device *dev,
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u64 *gtt_total,
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size_t *stolen,
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phys_addr_t *mappable_base,
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u64 *mappable_end)
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static int i915_gmch_probe(struct i915_ggtt *ggtt)
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{
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struct drm_device *dev = ggtt->base.dev;
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struct drm_i915_private *dev_priv = dev->dev_private;
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int ret;
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@ -3149,15 +3137,16 @@ static int i915_gmch_probe(struct drm_device *dev,
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return -EIO;
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}
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intel_gtt_get(gtt_total, stolen, mappable_base, mappable_end);
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intel_gtt_get(&ggtt->base.total, &ggtt->stolen_size,
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&ggtt->mappable_base, &ggtt->mappable_end);
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dev_priv->ggtt.do_idle_maps = needs_idle_maps(dev_priv->dev);
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dev_priv->ggtt.base.insert_entries = i915_ggtt_insert_entries;
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dev_priv->ggtt.base.clear_range = i915_ggtt_clear_range;
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dev_priv->ggtt.base.bind_vma = ggtt_bind_vma;
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dev_priv->ggtt.base.unbind_vma = ggtt_unbind_vma;
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ggtt->do_idle_maps = needs_idle_maps(dev_priv->dev);
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ggtt->base.insert_entries = i915_ggtt_insert_entries;
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ggtt->base.clear_range = i915_ggtt_clear_range;
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ggtt->base.bind_vma = ggtt_bind_vma;
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ggtt->base.unbind_vma = ggtt_unbind_vma;
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if (unlikely(dev_priv->ggtt.do_idle_maps))
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if (unlikely(ggtt->do_idle_maps))
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DRM_INFO("applying Ironlake quirks for intel_iommu\n");
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return 0;
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@ -3198,8 +3187,7 @@ int i915_gem_gtt_init(struct drm_device *dev)
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ggtt->base.dev = dev;
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ggtt->base.is_ggtt = true;
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ret = ggtt->probe(dev, &ggtt->base.total, &ggtt->stolen_size,
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&ggtt->mappable_base, &ggtt->mappable_end);
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ret = ggtt->probe(ggtt);
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if (ret)
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return ret;
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@ -346,6 +346,7 @@ struct i915_ggtt {
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size_t stolen_usable_size; /* Total size minus BIOS reserved */
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size_t stolen_reserved_base;
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size_t stolen_reserved_size;
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size_t size; /* Total size of Global GTT */
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u64 mappable_end; /* End offset that we can CPU map */
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struct io_mapping *mappable; /* Mapping to our CPU mappable region */
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phys_addr_t mappable_base; /* PA of our GMADR */
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@ -357,9 +358,7 @@ struct i915_ggtt {
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int mtrr;
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int (*probe)(struct drm_device *dev, u64 *gtt_total,
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size_t *stolen, phys_addr_t *mappable_base,
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u64 *mappable_end);
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int (*probe)(struct i915_ggtt *ggtt);
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};
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struct i915_hw_ppgtt {
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