From: Christian König Date: Wed, 24 Aug 2016 12:30:21 +0000 (+0200) Subject: drm/amdgpu: use explicit limit for VRAM_CONTIGUOUS X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=56de55a1a8fcabf8b3f6a64eedd3b6079b1f2fc7;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git drm/amdgpu: use explicit limit for VRAM_CONTIGUOUS Split VRAM won't have a valid offset, so just set an explicit limit when the flag is given to trigger reallocation if necessary. Signed-off-by: Christian König Reviewed-by: Edward O'Callaghan Tested-by: Mike Lothian Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index ba41807eb917..c6754e71e1f5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -121,12 +121,17 @@ static void amdgpu_ttm_placement_init(struct amdgpu_device *adev, if (domain & AMDGPU_GEM_DOMAIN_VRAM) { unsigned visible_pfn = adev->mc.visible_vram_size >> PAGE_SHIFT; + unsigned lpfn = 0; + + /* This forces a reallocation if the flag wasn't set before */ + if (flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS) + lpfn = adev->mc.real_vram_size >> PAGE_SHIFT; if (flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS && !(flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) && adev->mc.visible_vram_size < adev->mc.real_vram_size) { places[c].fpfn = visible_pfn; - places[c].lpfn = 0; + places[c].lpfn = lpfn; places[c].flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM | TTM_PL_FLAG_TOPDOWN; @@ -134,7 +139,7 @@ static void amdgpu_ttm_placement_init(struct amdgpu_device *adev, } places[c].fpfn = 0; - places[c].lpfn = 0; + places[c].lpfn = lpfn; places[c].flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM; if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)