diff options
| author | Horace Chen <horace.chen@amd.com> | 2022-07-21 07:11:33 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-09-01 22:11:03 +0300 |
| commit | ca4ba3394e2aebcee123055a1275980940f21598 (patch) | |
| tree | 395470ce2ef75385e6af99c801206865ad99e2ff /drivers | |
| parent | 119dc6c50eb9974e9dc0e6a17d8207592309c940 (diff) | |
| download | linux-ca4ba3394e2aebcee123055a1275980940f21598.tar.xz | |
drm/amdgpu: add a compute pipe reset for RS64
[Why]
Under SR-IOV, we are not sure whether pipe status is
good or not when doing initialization. The compute engine
maybe fail to bringup if pipe status is bad.
[How]
Do an RS64 pipe reset for MEC before we do initialization.
Also apply to bare-metal.
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Horace Chen <horace.chen@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c index f2d126b110e8..fa718318568e 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c @@ -2725,6 +2725,21 @@ static void gfx_v11_0_config_gfx_rs64(struct amdgpu_device *adev) mec_hdr->ucode_start_addr_hi >> 2); } soc21_grbm_select(adev, 0, 0, 0, 0); + + /* reset mec pipe */ + tmp = RREG32_SOC15(GC, 0, regCP_MEC_RS64_CNTL); + tmp = REG_SET_FIELD(tmp, CP_MEC_RS64_CNTL, MEC_PIPE0_RESET, 1); + tmp = REG_SET_FIELD(tmp, CP_MEC_RS64_CNTL, MEC_PIPE1_RESET, 1); + tmp = REG_SET_FIELD(tmp, CP_MEC_RS64_CNTL, MEC_PIPE2_RESET, 1); + tmp = REG_SET_FIELD(tmp, CP_MEC_RS64_CNTL, MEC_PIPE3_RESET, 1); + WREG32_SOC15(GC, 0, regCP_MEC_RS64_CNTL, tmp); + + /* clear mec pipe reset */ + tmp = REG_SET_FIELD(tmp, CP_MEC_RS64_CNTL, MEC_PIPE0_RESET, 0); + tmp = REG_SET_FIELD(tmp, CP_MEC_RS64_CNTL, MEC_PIPE1_RESET, 0); + tmp = REG_SET_FIELD(tmp, CP_MEC_RS64_CNTL, MEC_PIPE2_RESET, 0); + tmp = REG_SET_FIELD(tmp, CP_MEC_RS64_CNTL, MEC_PIPE3_RESET, 0); + WREG32_SOC15(GC, 0, regCP_MEC_RS64_CNTL, tmp); } static int gfx_v11_0_wait_for_rlc_autoload_complete(struct amdgpu_device *adev) |