diff options
Diffstat (limited to 'common/recipes-kernel/linux/files/0189-drm-amdgpu-cik-don-t-mess-with-aspm-if-gpu-is-root-b.patch')
| -rw-r--r-- | common/recipes-kernel/linux/files/0189-drm-amdgpu-cik-don-t-mess-with-aspm-if-gpu-is-root-b.patch | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/files/0189-drm-amdgpu-cik-don-t-mess-with-aspm-if-gpu-is-root-b.patch b/common/recipes-kernel/linux/files/0189-drm-amdgpu-cik-don-t-mess-with-aspm-if-gpu-is-root-b.patch new file mode 100644 index 00000000..01598394 --- /dev/null +++ b/common/recipes-kernel/linux/files/0189-drm-amdgpu-cik-don-t-mess-with-aspm-if-gpu-is-root-b.patch @@ -0,0 +1,32 @@ +From 72d172fab54a89dab463cdab4decf3aa244cabb8 Mon Sep 17 00:00:00 2001 +From: Alex Deucher <alexander.deucher@amd.com> +Date: Thu, 4 Feb 2016 10:33:59 -0500 +Subject: [PATCH 0189/1110] drm/amdgpu/cik: don't mess with aspm if gpu is root + bus + +Pcie registers may not be available in a virtualized +environment. + +Reviewed-by: monk liu <monk.liu@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/cik.c | 3 +++ + 1 file changed, 3 insertions(+) + +diff --git a/drivers/gpu/drm/amd/amdgpu/cik.c b/drivers/gpu/drm/amd/amdgpu/cik.c +index fd9c958..5c978e0 100644 +--- a/drivers/gpu/drm/amd/amdgpu/cik.c ++++ b/drivers/gpu/drm/amd/amdgpu/cik.c +@@ -1762,6 +1762,9 @@ static void cik_program_aspm(struct amdgpu_device *adev) + if (amdgpu_aspm == 0) + return; + ++ if (pci_is_root_bus(adev->pdev->bus)) ++ return; ++ + /* XXX double check APUs */ + if (adev->flags & AMD_IS_APU) + return; +-- +2.7.4 + |