Move the setting/clearing of the vma->pages to a vm operation. Doing so
neatens things up a little, but more importantly gives us a sane place
to also set/clear the vma->pages_sizes, which we introduce later in
preparation for supporting huge-pages.
Suggested-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Matthew Auld <matthew.auld@xxxxxxxxx>
Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem_gtt.c | 70 +++++++++++++++++++++++--------------
drivers/gpu/drm/i915/i915_gem_gtt.h | 2 ++
drivers/gpu/drm/i915/i915_vma.c | 29 ++++++++-------
3 files changed, 62 insertions(+), 39 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index de67084d5fcf..071ba8e56606 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -200,8 +200,6 @@ static int ppgtt_bind_vma(struct i915_vma *vma,
return ret;
}
- vma->pages = vma->obj->mm.pages;
-
/* Currently applicable only to VLV */
pte_flags = 0;
if (vma->obj->gt_ro)
@@ -217,6 +215,26 @@ static void ppgtt_unbind_vma(struct i915_vma *vma)
vma->vm->clear_range(vma->vm, vma->node.start, vma->size);
}
+static int ppgtt_set_pages(struct i915_vma *vma)
+{
+ GEM_BUG_ON(vma->pages);
+
+ vma->pages = vma->obj->mm.pages;
+
+ return 0;
+}
+
+static void clear_pages(struct i915_vma *vma)
+{
+ GEM_BUG_ON(!vma->pages);
+
+ if (vma->pages != vma->obj->mm.pages) {
+ sg_free_table(vma->pages);
+ kfree(vma->pages);
+ }
+ vma->pages = NULL;
+}
+
static gen8_pte_t gen8_pte_encode(dma_addr_t addr,
enum i915_cache_level level)
{
@@ -1380,6 +1398,8 @@ static int gen8_ppgtt_init(struct i915_hw_ppgtt *ppgtt)
ppgtt->base.cleanup = gen8_ppgtt_cleanup;
ppgtt->base.unbind_vma = ppgtt_unbind_vma;
ppgtt->base.bind_vma = ppgtt_bind_vma;
+ ppgtt->base.set_pages = ppgtt_set_pages;
+ ppgtt->base.clear_pages = clear_pages;
ppgtt->debug_dump = gen8_dump_ppgtt;
return 0;
@@ -1822,6 +1842,8 @@ static int gen6_ppgtt_init(struct i915_hw_ppgtt *ppgtt)
ppgtt->base.insert_entries = gen6_ppgtt_insert_entries;
ppgtt->base.unbind_vma = ppgtt_unbind_vma;
ppgtt->base.bind_vma = ppgtt_bind_vma;
+ ppgtt->base.set_pages = ppgtt_set_pages;
+ ppgtt->base.clear_pages = clear_pages;
ppgtt->base.cleanup = gen6_ppgtt_cleanup;
ppgtt->debug_dump = gen6_dump_ppgtt;
@@ -2333,12 +2355,6 @@ static int ggtt_bind_vma(struct i915_vma *vma,
struct drm_i915_gem_object *obj = vma->obj;
u32 pte_flags;
- if (unlikely(!vma->pages)) {
- int ret = i915_get_ggtt_vma_pages(vma);
- if (ret)
- return ret;
- }
-
/* Currently applicable only to VLV */
pte_flags = 0;
if (obj->gt_ro)
@@ -2375,12 +2391,6 @@ static int aliasing_gtt_bind_vma(struct i915_vma *vma,
u32 pte_flags;
int ret;
- if (unlikely(!vma->pages)) {
- ret = i915_get_ggtt_vma_pages(vma);
- if (ret)
- return ret;
- }
-
/* Currently applicable only to VLV */
pte_flags = 0;
if (vma->obj->gt_ro)
@@ -2395,7 +2405,7 @@ static int aliasing_gtt_bind_vma(struct i915_vma *vma,
vma->node.start,
vma->size);
if (ret)
- goto err_pages;
+ return ret;
}
appgtt->base.insert_entries(&appgtt->base, vma, cache_level,
@@ -2409,17 +2419,6 @@ static int aliasing_gtt_bind_vma(struct i915_vma *vma,
}
return 0;
-
-err_pages:
- if (!(vma->flags & (I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND))) {
- if (vma->pages != vma->obj->mm.pages) {
- GEM_BUG_ON(!vma->pages);
- sg_free_table(vma->pages);
- kfree(vma->pages);
- }
- vma->pages = NULL;
- }
- return ret;
}
static void aliasing_gtt_unbind_vma(struct i915_vma *vma)
@@ -2457,6 +2456,19 @@ void i915_gem_gtt_finish_pages(struct drm_i915_gem_object *obj,
dma_unmap_sg(kdev, pages->sgl, pages->nents, PCI_DMA_BIDIRECTIONAL);
}
+static int ggtt_set_pages(struct i915_vma *vma)
+{
+ int ret;
+
+ GEM_BUG_ON(vma->pages);
+
+ ret = i915_get_ggtt_vma_pages(vma);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
static void i915_gtt_color_adjust(const struct drm_mm_node *node,
unsigned long color,
u64 *start,
@@ -2859,6 +2871,8 @@ static int gen8_gmch_probe(struct i915_ggtt *ggtt)
ggtt->base.cleanup = gen6_gmch_remove;
ggtt->base.bind_vma = ggtt_bind_vma;
ggtt->base.unbind_vma = ggtt_unbind_vma;
+ ggtt->base.set_pages = ggtt_set_pages;
+ ggtt->base.clear_pages = clear_pages;
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))
@@ -2915,6 +2929,8 @@ static int gen6_gmch_probe(struct i915_ggtt *ggtt)
ggtt->base.insert_entries = gen6_ggtt_insert_entries;
ggtt->base.bind_vma = ggtt_bind_vma;
ggtt->base.unbind_vma = ggtt_unbind_vma;
+ ggtt->base.set_pages = ggtt_set_pages;
+ ggtt->base.clear_pages = clear_pages;
ggtt->base.cleanup = gen6_gmch_remove;
ggtt->invalidate = gen6_ggtt_invalidate;
@@ -2960,6 +2976,8 @@ static int i915_gmch_probe(struct i915_ggtt *ggtt)
ggtt->base.clear_range = i915_ggtt_clear_range;
ggtt->base.bind_vma = ggtt_bind_vma;
ggtt->base.unbind_vma = ggtt_unbind_vma;
+ ggtt->base.set_pages = ggtt_set_pages;
+ ggtt->base.clear_pages = clear_pages;
ggtt->base.cleanup = i915_gmch_remove;
ggtt->invalidate = gmch_ggtt_invalidate;
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 4c2f7d7c1e7d..57738a61ea6e 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -330,6 +330,8 @@ struct i915_address_space {
int (*bind_vma)(struct i915_vma *vma,
enum i915_cache_level cache_level,
u32 flags);
+ int (*set_pages)(struct i915_vma *vma);
+ void (*clear_pages)(struct i915_vma *vma);
I915_SELFTEST_DECLARE(struct fault_attr fault_attr);
};
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index 958be0a95960..c8d1b98cc260 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -266,6 +266,8 @@ int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
if (bind_flags == 0)
return 0;
+ GEM_BUG_ON(!vma->pages);
+
trace_i915_vma_bind(vma, bind_flags);
ret = vma->vm->bind_vma(vma, cache_level, bind_flags);
if (ret)
@@ -471,25 +473,31 @@ i915_vma_insert(struct i915_vma *vma, u64 size, u64 alignment, u64 flags)
if (ret)
return ret;
+ if (!vma->pages) {
+ ret = vma->vm->set_pages(vma);
+ if (ret)
+ goto err_unpin;
+ }
+
if (flags & PIN_OFFSET_FIXED) {
u64 offset = flags & PIN_OFFSET_MASK;
if (!IS_ALIGNED(offset, alignment) ||
range_overflows(offset, size, end)) {
ret = -EINVAL;
- goto err_unpin;
+ goto err_clear;
}
ret = i915_gem_gtt_reserve(vma->vm, &vma->node,
size, offset, obj->cache_level,
flags);
if (ret)
- goto err_unpin;
+ goto err_clear;
} else {
ret = i915_gem_gtt_insert(vma->vm, &vma->node,
size, alignment, obj->cache_level,
start, end, flags);
if (ret)
- goto err_unpin;
+ goto err_clear;
GEM_BUG_ON(vma->node.start < start);
GEM_BUG_ON(vma->node.start + vma->node.size > end);
@@ -504,6 +512,8 @@ i915_vma_insert(struct i915_vma *vma, u64 size, u64 alignment, u64 flags)
return 0;
+err_clear:
+ vma->vm->clear_pages(vma);
err_unpin:
i915_gem_object_unpin_pages(obj);
return ret;
@@ -517,6 +527,8 @@ i915_vma_remove(struct i915_vma *vma)
GEM_BUG_ON(!drm_mm_node_allocated(&vma->node));
GEM_BUG_ON(vma->flags & (I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND));
+ vma->vm->clear_pages(vma);
+
drm_mm_remove_node(&vma->node);
list_move_tail(&vma->vm_link, &vma->vm->unbound_list);
@@ -568,10 +580,8 @@ int __i915_vma_do_pin(struct i915_vma *vma,
return 0;
err_remove:
- if ((bound & I915_VMA_BIND_MASK) == 0) {
- GEM_BUG_ON(vma->pages);
+ if ((bound & I915_VMA_BIND_MASK) == 0)
i915_vma_remove(vma);
- }
err_unpin:
__i915_vma_unpin(vma);
return ret;
@@ -717,13 +727,6 @@ int i915_vma_unbind(struct i915_vma *vma)
}
vma->flags &= ~(I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND);
- if (vma->pages != obj->mm.pages) {
- GEM_BUG_ON(!vma->pages);
- sg_free_table(vma->pages);
- kfree(vma->pages);
- }
- vma->pages = NULL;
-
i915_vma_remove(vma);
destroy:
--
2.9.4
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