From: Mario Limonciello (AMD) Date: Sun, 26 Oct 2025 04:29:37 +0000 (-0500) Subject: drm/amd: Add an unwind for failures in amdgpu_device_ip_suspend_phase1() X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=6f4208f9d992104fed0854f0b975a31ffb9c0d46;p=thirdparty%2Fkernel%2Flinux.git drm/amd: Add an unwind for failures in amdgpu_device_ip_suspend_phase1() If any hardware IPs involved with the first phase of suspend fail, unwind all steps to restore back to original state. Signed-off-by: Mario Limonciello (AMD) Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 9f67c53633aae..227ac93701753 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -178,6 +178,7 @@ struct amdgpu_init_level amdgpu_init_minimal_xgmi = { BIT(AMD_IP_BLOCK_TYPE_COMMON) | BIT(AMD_IP_BLOCK_TYPE_IH) | BIT(AMD_IP_BLOCK_TYPE_PSP) }; +static int amdgpu_device_ip_resume_phase3(struct amdgpu_device *adev); static void amdgpu_device_load_switch_state(struct amdgpu_device *adev); @@ -3784,7 +3785,7 @@ static void amdgpu_device_delay_enable_gfx_off(struct work_struct *work) */ static int amdgpu_device_ip_suspend_phase1(struct amdgpu_device *adev) { - int i, r; + int i, r, rec; amdgpu_device_set_pg_state(adev, AMD_PG_STATE_UNGATE); amdgpu_device_set_cg_state(adev, AMD_CG_STATE_UNGATE); @@ -3807,10 +3808,23 @@ static int amdgpu_device_ip_suspend_phase1(struct amdgpu_device *adev) r = amdgpu_ip_block_suspend(&adev->ip_blocks[i]); if (r) - return r; + goto unwind; } return 0; +unwind: + rec = amdgpu_device_ip_resume_phase3(adev); + if (rec) + dev_err(adev->dev, + "amdgpu_device_ip_resume_phase3 failed during unwind: %d\n", + rec); + + amdgpu_dpm_set_df_cstate(adev, DF_CSTATE_ALLOW); + + amdgpu_device_set_pg_state(adev, AMD_PG_STATE_GATE); + amdgpu_device_set_cg_state(adev, AMD_CG_STATE_GATE); + + return r; } /**