UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/amdgpu/gmc9: disable partial wr rmw if ECC is not enabled 

The vbios mistakenly sets this bit on some boards without ECC.
This can lead to reduced performance in some workloads.  Disable
the bit if the board does not have ECC.

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2018-05-10 15:15:12 -05:00
parent 1ca2393b73
commit e1d1a7729a
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
View File

@ -675,6 +675,7 @@ static int gmc_v9_0_late_init(void *handle)
DRM_INFO("ECC is active.\n");
} else if (r == 0) {
DRM_INFO("ECC is not present.\n");
adev->df_funcs->enable_ecc_force_par_wr_rmw(adev, false);
} else {
DRM_ERROR("gmc_v9_0_ecc_available() failed. r: %d\n", r);
return r;