If we move the sanity checking from gen8_alloc_va_range_3lvl and
gen6_alloc_va_range into i915_vma_bind, we will increase our coverage to
now both callbacks. We also convert each WARN_ON over to a GEM_WARN_ON.
Cc: Joonas Lahtinen <joonas.lahti...@linux.intel.com>
Cc: Chris Wilson <ch...@chris-wilson.co.uk>
Suggested-by: Chris Wilson <ch...@chris-wilson.co.uk>
Signed-off-by: Matthew Auld <matthew.a...@intel.com>
---
drivers/gpu/drm/i915/i915_gem_gtt.c | 12 ------------
drivers/gpu/drm/i915/i915_vma.c | 6 ++++++
2 files changed, 6 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c
b/drivers/gpu/drm/i915/i915_gem_gtt.c
index ef00d36680c9..4f405b445b6c 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1303,15 +1303,6 @@ static int gen8_alloc_va_range_3lvl(struct
i915_address_space *vm,
uint32_t pdpes = I915_PDPES_PER_PDP(dev_priv);
int ret;
- /* Wrap is never okay since we can only represent 48b, and we don't
- * actually use the other side of the canonical address space.
- */
- if (WARN_ON(start + length < start))
- return -ENODEV;
-
- if (WARN_ON(start + length > vm->total))
- return -ENODEV;
-
ret = alloc_gen8_temp_bitmaps(&new_page_dirs, &new_page_tables, pdpes);
if (ret)
return ret;
@@ -1929,9 +1920,6 @@ static int gen6_alloc_va_range(struct i915_address_space
*vm,
uint32_t pde;
int ret;
- if (WARN_ON(start_in + length_in > ppgtt->base.total))
- return -ENODEV;
-
start = start_save = start_in;
length = length_save = length_in;
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index 37c3eebe8316..9e121222c5eb 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -176,6 +176,12 @@ int i915_vma_bind(struct i915_vma *vma, enum
i915_cache_level cache_level,
if (bind_flags == 0)
return 0;
+ if (GEM_WARN_ON(vma->node.start + vma->node.size < vma->node.start))
+ return -ENODEV;
+
+ if (GEM_WARN_ON(vma->node.start + vma->node.size > vma->vm->total))
+ return -ENODEV;
+
if (vma_flags == 0 && vma->vm->allocate_va_range) {
trace_i915_va_alloc(vma);
ret = vma->vm->allocate_va_range(vma->vm,
--
2.9.3
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
