diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2019-05-17 17:31:43 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-05-20 20:49:10 +0300 |
| commit | 067e75b3d786b6bd7863e86f9a8025284be87ac8 (patch) | |
| tree | e752b1b16102010d5118114727e288803328e4c8 /drivers/gpu/drm/amd | |
| parent | 5887a59961e2295c5b02f39dbc0ecf9212709b7b (diff) | |
| download | linux-067e75b3d786b6bd7863e86f9a8025284be87ac8.tar.xz | |
drm/amdgpu/gmc9: set vram_width properly for SR-IOV
For SR-IOV, vram_width can't be read from ATOM as
RAVEN, and DF related registers is not readable, so hardcord
is the only way to set the correct vram_width.
Reviewed-by: Yintian Tao <yttao@amd.com>
Signed-off-by: Trigger Huang <Trigger.Huang@amd.com>
Signed-off-by: Yintian Tao <yttao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index 4e6fcaeb1303..3b7370d914a5 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -813,8 +813,16 @@ static int gmc_v9_0_mc_init(struct amdgpu_device *adev) int chansize, numchan; int r; - if (amdgpu_emu_mode != 1) + if (amdgpu_sriov_vf(adev)) { + /* For Vega10 SR-IOV, vram_width can't be read from ATOM as RAVEN, + * and DF related registers is not readable, seems hardcord is the + * only way to set the correct vram_width + */ + adev->gmc.vram_width = 2048; + } else if (amdgpu_emu_mode != 1) { adev->gmc.vram_width = amdgpu_atomfirmware_get_vram_width(adev); + } + if (!adev->gmc.vram_width) { /* hbm memory channel size */ if (adev->flags & AMD_IS_APU) |