From: Rex Zhu <Rex.Zhu@amd.com>
Date: Fri, 18 May 2018 14:59:46 +0800
Subject: drm/amd/pp: fix a couple locking issues
Git-commit: e6ee925b795311679dd6e0ebeae6f1dbe983c059
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
We should return unlock on the error path
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c | 31 +++++++++++--------
1 file changed, 19 insertions(+), 12 deletions(-)
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c
@@ -936,45 +936,49 @@ int smu7_enable_didt_config(struct pp_hw
if (hwmgr->chip_id == CHIP_POLARIS10) {
result = smu7_program_pt_config_registers(hwmgr, GCCACConfig_Polaris10);
- PP_ASSERT_WITH_CODE((result == 0), "DIDT Config failed.", return result);
+ PP_ASSERT_WITH_CODE((result == 0), "DIDT Config failed.", goto error);
result = smu7_program_pt_config_registers(hwmgr, DIDTConfig_Polaris10);
- PP_ASSERT_WITH_CODE((result == 0), "DIDT Config failed.", return result);
+ PP_ASSERT_WITH_CODE((result == 0), "DIDT Config failed.", goto error);
} else if (hwmgr->chip_id == CHIP_POLARIS11) {
result = smu7_program_pt_config_registers(hwmgr, GCCACConfig_Polaris11);
- PP_ASSERT_WITH_CODE((result == 0), "DIDT Config failed.", return result);
+ PP_ASSERT_WITH_CODE((result == 0), "DIDT Config failed.", goto error);
if (hwmgr->is_kicker)
result = smu7_program_pt_config_registers(hwmgr, DIDTConfig_Polaris11_Kicker);
else
result = smu7_program_pt_config_registers(hwmgr, DIDTConfig_Polaris11);
- PP_ASSERT_WITH_CODE((result == 0), "DIDT Config failed.", return result);
+ PP_ASSERT_WITH_CODE((result == 0), "DIDT Config failed.", goto error);
} else if (hwmgr->chip_id == CHIP_POLARIS12) {
result = smu7_program_pt_config_registers(hwmgr, GCCACConfig_Polaris11);
- PP_ASSERT_WITH_CODE((result == 0), "DIDT Config failed.", return result);
+ PP_ASSERT_WITH_CODE((result == 0), "DIDT Config failed.", goto error);
result = smu7_program_pt_config_registers(hwmgr, DIDTConfig_Polaris12);
- PP_ASSERT_WITH_CODE((result == 0), "DIDT Config failed.", return result);
+ PP_ASSERT_WITH_CODE((result == 0), "DIDT Config failed.", goto error);
} else if (hwmgr->chip_id == CHIP_VEGAM) {
result = smu7_program_pt_config_registers(hwmgr, GCCACConfig_VegaM);
- PP_ASSERT_WITH_CODE((result == 0), "DIDT Config failed.", return result);
+ PP_ASSERT_WITH_CODE((result == 0), "DIDT Config failed.", goto error);
result = smu7_program_pt_config_registers(hwmgr, DIDTConfig_VegaM);
- PP_ASSERT_WITH_CODE((result == 0), "DIDT Config failed.", return result);
+ PP_ASSERT_WITH_CODE((result == 0), "DIDT Config failed.", goto error);
}
}
cgs_write_register(hwmgr->device, mmGRBM_GFX_INDEX, value2);
result = smu7_enable_didt(hwmgr, true);
- PP_ASSERT_WITH_CODE((result == 0), "EnableDiDt failed.", return result);
+ PP_ASSERT_WITH_CODE((result == 0), "EnableDiDt failed.", goto error);
if (hwmgr->chip_id == CHIP_POLARIS11) {
result = smum_send_msg_to_smc(hwmgr,
(uint16_t)(PPSMC_MSG_EnableDpmDidt));
PP_ASSERT_WITH_CODE((0 == result),
- "Failed to enable DPM DIDT.", return result);
+ "Failed to enable DPM DIDT.", goto error);
}
mutex_unlock(&adev->grbm_idx_mutex);
adev->gfx.rlc.funcs->exit_safe_mode(adev);
}
return 0;
+error:
+ mutex_unlock(&adev->grbm_idx_mutex);
+ adev->gfx.rlc.funcs->exit_safe_mode(adev);
+ return result;
}
int smu7_disable_didt_config(struct pp_hwmgr *hwmgr)
@@ -992,17 +996,20 @@ int smu7_disable_didt_config(struct pp_h
result = smu7_enable_didt(hwmgr, false);
PP_ASSERT_WITH_CODE((result == 0),
"Post DIDT enable clock gating failed.",
- return result);
+ goto error);
if (hwmgr->chip_id == CHIP_POLARIS11) {
result = smum_send_msg_to_smc(hwmgr,
(uint16_t)(PPSMC_MSG_DisableDpmDidt));
PP_ASSERT_WITH_CODE((0 == result),
- "Failed to disable DPM DIDT.", return result);
+ "Failed to disable DPM DIDT.", goto error);
}
adev->gfx.rlc.funcs->exit_safe_mode(adev);
}
return 0;
+error:
+ adev->gfx.rlc.funcs->exit_safe_mode(adev);
+ return result;
}
int smu7_enable_smc_cac(struct pp_hwmgr *hwmgr)