From: CQ Tang <cq.tang@xxxxxxxxx>
Since stolen can now be device local-memory underneath, we should try to
enforce any min_page_size restrictions when allocating pages.
Signed-off-by: CQ Tang <cq.tang@xxxxxxxxx>
Signed-off-by: Matthew Auld <matthew.auld@xxxxxxxxx>
---
drivers/gpu/drm/i915/gem/i915_gem_stolen.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
index dfc3076abd0c..0722b909cd09 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
@@ -32,6 +32,7 @@ int i915_gem_stolen_insert_node_in_range(struct drm_i915_private *i915,
struct drm_mm_node *node, u64 size,
unsigned alignment, u64 start, u64 end)
{
+ struct intel_memory_region *mem = i915_stolen_region(i915);
int ret;
if (!drm_mm_initialized(&i915->mm.stolen))
@@ -41,6 +42,10 @@ int i915_gem_stolen_insert_node_in_range(struct drm_i915_private *i915,
if (INTEL_GEN(i915) >= 8 && start < 4096)
start = 4096;
+ if (GEM_WARN_ON(!IS_ALIGNED(size, mem->min_page_size)) ||
+ GEM_WARN_ON(!IS_ALIGNED(alignment, mem->min_page_size)))
+ return -EINVAL;
+
mutex_lock(&i915->mm.stolen_lock);
ret = drm_mm_insert_node_in_range(&i915->mm.stolen, node,
size, alignment, 0,
@@ -674,7 +679,8 @@ static int _i915_gem_object_stolen_init(struct intel_memory_region *mem,
if (!stolen)
return -ENOMEM;
- ret = i915_gem_stolen_insert_node(i915, stolen, size, 4096);
+ ret = i915_gem_stolen_insert_node(i915, stolen, size,
+ mem->min_page_size);
if (ret)
goto err_free;
@@ -814,8 +820,8 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *i915,
/* KISS and expect everything to be page-aligned */
if (GEM_WARN_ON(size == 0) ||
- GEM_WARN_ON(!IS_ALIGNED(size, I915_GTT_PAGE_SIZE)) ||
- GEM_WARN_ON(!IS_ALIGNED(stolen_offset, I915_GTT_MIN_ALIGNMENT)))
+ GEM_WARN_ON(!IS_ALIGNED(size, mem->min_page_size)) ||
+ GEM_WARN_ON(!IS_ALIGNED(stolen_offset, mem->min_page_size)))
return ERR_PTR(-EINVAL);
stolen = kzalloc(sizeof(*stolen), GFP_KERNEL);
--
2.26.2
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