Am 04.11.21 um 08:49 schrieb Christian König:
Am 04.11.21 um 03:55 schrieb YuBiao Wang:
[Why]
For Vega10, disabling gart of gfxhub and mmhub could mess up KIQ and PSP
under sriov mode, and lead to DMAR on host side.
[How]
Skip writing GMC registers under sriov.
Signed-off-by: YuBiao Wang
--
Am 04.11.21 um 03:55 schrieb YuBiao Wang:
[Why]
For Vega10, disabling gart of gfxhub and mmhub could mess up KIQ and PSP
under sriov mode, and lead to DMAR on host side.
[How]
Skip writing GMC registers under sriov.
Signed-off-by: YuBiao Wang
---
drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c |
[Why]
For Vega10, disabling gart of gfxhub and mmhub could mess up KIQ and PSP
under sriov mode, and lead to DMAR on host side.
[How]
Skip writing GMC registers under sriov.
Signed-off-by: YuBiao Wang
---
drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c | 26 +---
1 file changed, 14
Am 02.11.21 um 11:25 schrieb YuBiao Wang:
[Why]
For Vega10, disabling gart of gfxhub and mmhub could mess up KIQ and PSP under
sriov mode, and lead to DMAR on host side.
[How]
Do not call gmc_gart_disable under sriov but keep vram_unpin to avoid
pin_count leak.
NAK, if you want to do this you
[Why]
For Vega10, disabling gart of gfxhub and mmhub could mess up KIQ and PSP under
sriov mode, and lead to DMAR on host side.
[How]
Do not call gmc_gart_disable under sriov but keep vram_unpin to avoid
pin_count leak.
Signed-off-by: YuBiao Wang
---
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 4 +
