From 4dd504f7d98a6719eb2fc1a400257ca1f13d344b Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Tue, 26 Sep 2017 10:53:53 +0100 Subject: [PATCH] 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 Link: https://patchwork.freedesktop.org/patch/msgid/20170926095353.11036-1-chris@chris-wilson.co.uk Reviewed-by: Tvrtko Ursulin --- drivers/gpu/drm/i915/i915_gem_gtt.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 64d7852..4c82ceb 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -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); } -- 2.7.4