Suggested by PMFW team and same as what did for gfxoff feature. This can address some Mode1Reset failures observed on SMU13.0.0.
Signed-off-by: Evan Quan <[email protected]> Reviewed-by: Hawking Zhang <[email protected]> Change-Id: Ieb4e204c49abd405b1dce559c2ff75bb3887b6f9 -- v1->v2: - revise the code comments(Alex) - limit this to SMU13.0.0 and 13.0.7 v2->v3: - make this happen before display suspending --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 8 ++++++++ drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c | 7 +++++++ drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c | 7 +++++++ 3 files changed, 22 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index ab8f970b2849..874bf623f394 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2928,6 +2928,14 @@ static int amdgpu_device_ip_suspend_phase1(struct amdgpu_device *adev) amdgpu_device_set_pg_state(adev, AMD_PG_STATE_UNGATE); amdgpu_device_set_cg_state(adev, AMD_CG_STATE_UNGATE); + /* + * Per PMFW team's suggestion, driver needs to handle gfxoff + * and df cstate features disablement for gpu reset(e.g. Mode1Reset) + * scenario. Add the missing df cstate disablement here. + */ + if (amdgpu_dpm_set_df_cstate(adev, DF_CSTATE_DISALLOW)) + dev_warn(adev->dev, "Failed to disallow df cstate"); + for (i = adev->num_ip_blocks - 1; i >= 0; i--) { if (!adev->ip_blocks[i].status.valid) continue; diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c index 445005571f76..7d34f40460eb 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c @@ -2245,6 +2245,13 @@ static int arcturus_set_df_cstate(struct smu_context *smu, uint32_t smu_version; int ret; + /* + * Arcturus does not need the cstate disablement + * prerequisite for gpu reset. + */ + if (amdgpu_in_reset(adev) || adev->in_suspend) + return 0; + ret = smu_cmn_get_smc_version(smu, NULL, &smu_version); if (ret) { dev_err(smu->adev->dev, "Failed to get smu version!\n"); diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c index 619aee51b123..93a0f7f6a34e 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c @@ -1640,6 +1640,13 @@ static bool aldebaran_is_baco_supported(struct smu_context *smu) static int aldebaran_set_df_cstate(struct smu_context *smu, enum pp_df_cstate state) { + /* + * Aldebaran does not need the cstate disablement + * prerequisite for gpu reset. + */ + if (amdgpu_in_reset(adev) || adev->in_suspend) + return 0; + return smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_DFCstateControl, state, NULL); } -- 2.34.1
