xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/amdgpu/gmc9: set vram_width properly for SR-IOV

Browse Source 
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>
This commit is contained in:
Alex Deucher
2019-05-17 09:31:43 -05:00
parent 5887a59961
commit 067e75b3d7
1 changed files with 9 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
View File

@@ -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)