diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/0845-drm-amdgpu-Scale-GTT-size-with-system-memory-size.patch')
-rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/0845-drm-amdgpu-Scale-GTT-size-with-system-memory-size.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/0845-drm-amdgpu-Scale-GTT-size-with-system-memory-size.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/0845-drm-amdgpu-Scale-GTT-size-with-system-memory-size.patch new file mode 100644 index 00000000..65a629f4 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/0845-drm-amdgpu-Scale-GTT-size-with-system-memory-size.patch @@ -0,0 +1,41 @@ +From 988bca4ee4732bc663f3d6cb71893a8fa480b904 Mon Sep 17 00:00:00 2001 +From: Felix Kuehling <Felix.Kuehling@amd.com> +Date: Thu, 20 Jul 2017 20:50:00 -0400 +Subject: [PATCH 0845/4131] drm/amdgpu: Scale GTT size with system memory size + +This is the new limit for system memory allocation size. For compute +apps we want to use all system memory, so scale GTT size with system +memory size. + +Change-Id: Icec07008e445c60b3db0962c3c67b192d2e577b6 +Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 12 ++++++++---- + 1 file changed, 8 insertions(+), 4 deletions(-) + +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +index 9ae5fda..d2431cc 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +@@ -1454,10 +1454,14 @@ int amdgpu_ttm_init(struct amdgpu_device *adev) + DRM_INFO("amdgpu: %uM of VRAM memory ready\n", + (unsigned) (adev->mc.real_vram_size / (1024 * 1024))); + +- if (amdgpu_gtt_size == -1) +- gtt_size = max((AMDGPU_DEFAULT_GTT_SIZE_MB << 20), +- adev->mc.mc_vram_size); +- else ++ if (amdgpu_gtt_size == -1) { ++ struct sysinfo si; ++ ++ si_meminfo(&si); ++ gtt_size = max3((AMDGPU_DEFAULT_GTT_SIZE_MB << 20), ++ adev->mc.mc_vram_size, ++ ((uint64_t)si.totalram * si.mem_unit)); ++ } else + gtt_size = (uint64_t)amdgpu_gtt_size << 20; + + /* reserve for DGMA import domain */ +-- +2.7.4 + |