From 3eb1c005c616f110ccec25540712ce7232d5d4bf Mon Sep 17 00:00:00 2001 From: Ben Widawsky Date: Mon, 8 Apr 2013 18:43:52 -0700 Subject: [PATCH] drm/i915: Conditionally carve out GGTT PDE It only works that way on GEN6 and GEN7. Let's not assume GENn will be the same. Signed-off-by: Ben Widawsky Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_gem_gtt.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 0f214fb1a75f..b4ba488e5c83 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -623,9 +623,12 @@ void i915_gem_init_global_gtt(struct drm_device *dev) if (intel_enable_ppgtt(dev) && HAS_ALIASING_PPGTT(dev)) { int ret; - /* PPGTT pdes are stolen from global gtt ptes, so shrink the - * aperture accordingly when using aliasing ppgtt. */ - gtt_size -= I915_PPGTT_PD_ENTRIES*PAGE_SIZE; + + if (INTEL_INFO(dev)->gen <= 7) { + /* PPGTT pdes are stolen from global gtt ptes, so shrink the + * aperture accordingly when using aliasing ppgtt. */ + gtt_size -= I915_PPGTT_PD_ENTRIES*PAGE_SIZE; + } i915_gem_setup_global_gtt(dev, 0, mappable_size, gtt_size); -- 2.20.1