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drm/i915: Use memset64() to prefill the GTT page 

Take advantage of optimised memset64() instead of open coding it to
prefill the GTT pages.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20170926095353.11036-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
This commit is contained in:
Chris Wilson 2017-09-26 10:53:53 +01:00
parent 163e8aecd1
commit 4dd504f7d9
1 changed files with 1 additions and 3 deletions
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4
drivers/gpu/drm/i915/i915_gem_gtt.c
View File

@ -481,10 +481,8 @@ static void fill_page_dma(struct i915_address_space *vm,
const u64 val)
{
u64 * const vaddr = kmap_atomic(p->page);
int i;
for (i = 0; i < 512; i++)
vaddr[i] = val;
memset64(vaddr, val, PAGE_SIZE / sizeof(val));
kunmap_atomic(vaddr);
}