diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/0690-drm-amd-amdgpu-enable-GFX-PG-for-carrizo-and.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/0690-drm-amd-amdgpu-enable-GFX-PG-for-carrizo-and.patch | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/0690-drm-amd-amdgpu-enable-GFX-PG-for-carrizo-and.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/0690-drm-amd-amdgpu-enable-GFX-PG-for-carrizo-and.patch new file mode 100644 index 00000000..3671c2f7 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/0690-drm-amd-amdgpu-enable-GFX-PG-for-carrizo-and.patch @@ -0,0 +1,46 @@ +From bee6d503ecdec66ff9aabe6d97997927bdb9b7f6 Mon Sep 17 00:00:00 2001 +From: Kalyan Alle <kalyan.alle@amd.com> +Date: Wed, 3 Jan 2018 13:25:20 +0530 +Subject: [PATCH 0690/4131] drm/amd/amdgpu: enable GFX PG for carrizo and + +disable CG for eStoney. + +Enables the GFX PG for carrizo as a workaround to make the amd-17.50 +kernel boot on carrizo. This patch also disables the CG on eStoney +to get rid of the filesystem corruption and IOMMU errors. + +Signed-off-by: Kalyan Alle <kalyan.alle@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/vi.c | 9 +++++++-- + 1 file changed, 7 insertions(+), 2 deletions(-) + +diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c +index e131eb3..f5ec5f8 100644 +--- a/drivers/gpu/drm/amd/amdgpu/vi.c ++++ b/drivers/gpu/drm/amd/amdgpu/vi.c +@@ -1066,7 +1066,11 @@ static int vi_common_early_init(void *handle) + AMD_CG_SUPPORT_GFX_CP_LS | + AMD_CG_SUPPORT_GFX_CGTS | + AMD_CG_SUPPORT_GFX_CGTS_LS | +- AMD_CG_SUPPORT_GFX_CGCG | ++ /* Enabling CGCG on 4.9 kernel results in ++ * IOMMU errors and filesystem corruption ++ * Disable CGCG until the issue is fixed properly ++ */ ++ //AMD_CG_SUPPORT_GFX_CGCG | + AMD_CG_SUPPORT_GFX_CGLS | + AMD_CG_SUPPORT_BIF_LS | + AMD_CG_SUPPORT_HDP_MGCG | +@@ -1077,7 +1081,8 @@ static int vi_common_early_init(void *handle) + /* rev0 hardware requires workarounds to support PG */ + adev->pg_flags = 0; + if (adev->rev_id != 0x00 || CZ_REV_BRISTOL(adev->pdev->revision)) { +- adev->pg_flags |= AMD_PG_SUPPORT_GFX_SMG | ++ adev->pg_flags |= AMD_PG_SUPPORT_GFX_PG | ++ AMD_PG_SUPPORT_GFX_SMG | + AMD_PG_SUPPORT_GFX_PIPELINE | + AMD_PG_SUPPORT_CP | + AMD_PG_SUPPORT_UVD | +-- +2.7.4 + |