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drm/i915/gtt: No need to zero the table for page dirs 

We set them to scratch right after allocation so prevent
useless zeroing before.

v2: atomic_t
v3: allow pdp alloc fail

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190614164350.30415-1-mika.kuoppala@linux.intel.com
This commit is contained in:
Mika Kuoppala 2019-06-14 19:43:41 +03:00
parent 0780f3b6f0
commit 7d82cc353a
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/i915/i915_gem_gtt.c
View File

@ -688,7 +688,7 @@ static struct i915_page_directory *alloc_pd(struct i915_address_space *vm)
{
struct i915_page_directory *pd;
pd = kzalloc(sizeof(*pd), I915_GFP_ALLOW_FAIL);
pd = kmalloc(sizeof(*pd), I915_GFP_ALLOW_FAIL);
if (unlikely(!pd))
return ERR_PTR(-ENOMEM);
@ -748,7 +748,7 @@ alloc_pdp(struct i915_address_space *vm)
GEM_BUG_ON(!i915_vm_is_4lvl(vm));
pdp = kzalloc(sizeof(*pdp), GFP_KERNEL);
pdp = kmalloc(sizeof(*pdp), I915_GFP_ALLOW_FAIL);
if (!pdp)
return ERR_PTR(-ENOMEM);