diff options
author | YuBiao Wang <YuBiao.Wang@amd.com> | 2022-11-10 09:53:10 +0300 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2022-11-15 19:51:15 +0300 |
commit | f3416dc88ad37d94a942eebcb9168838c3846087 (patch) | |
tree | 9b5367d855be80ab818fe1d8538446f4f2b20ad9 /drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | |
parent | 2ebf61f2cfb9a11bc17db30df3e675a4cd7418d3 (diff) | |
download | linux-f3416dc88ad37d94a942eebcb9168838c3846087.tar.xz |
drm/amdgpu: Stop clearing kiq position during unload
Do not clear kiq position in RLC_CP_SCHEDULER so that CP could perform
IDLE-SAVE after VF fini. CPG also needs to be active in save command.
v2: drop unused variable (Alex)
Signed-off-by: YuBiao Wang <YuBiao.Wang@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c index 9447999a3a48..9d2c6523f546 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c @@ -4392,7 +4392,6 @@ static int gfx_v11_0_hw_fini(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; int r; - uint32_t tmp; amdgpu_irq_put(adev, &adev->gfx.priv_reg_irq, 0); amdgpu_irq_put(adev, &adev->gfx.priv_inst_irq, 0); @@ -4411,15 +4410,14 @@ static int gfx_v11_0_hw_fini(void *handle) amdgpu_mes_kiq_hw_fini(adev); } - if (amdgpu_sriov_vf(adev)) { - gfx_v11_0_cp_gfx_enable(adev, false); - /* Program KIQ position of RLC_CP_SCHEDULERS during destroy */ - tmp = RREG32_SOC15(GC, 0, regRLC_CP_SCHEDULERS); - tmp &= 0xffffff00; - WREG32_SOC15(GC, 0, regRLC_CP_SCHEDULERS, tmp); - + if (amdgpu_sriov_vf(adev)) + /* Remove the steps disabling CPG and clearing KIQ position, + * so that CP could perform IDLE-SAVE during switch. Those + * steps are necessary to avoid a DMAR error in gfx9 but it is + * not reproduced on gfx11. + */ return 0; - } + gfx_v11_0_cp_enable(adev, false); gfx_v11_0_enable_gui_idle_interrupt(adev, false); |