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drm/amd/pp: Fix error handling when smu return failed on Vega10. 

Clamp the clock index to a valid range when reading it back

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>
This commit is contained in:
Rex Zhu 2018-02-11 12:38:58 +08:00 committed by Alex Deucher
parent 40d5250dbb
commit 952e5daa25
1 changed files with 14 additions and 12 deletions
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26
drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
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@ -3912,28 +3912,30 @@ static int vega10_read_sensor(struct pp_hwmgr *hwmgr, int idx,
switch (idx) {
case AMDGPU_PP_SENSOR_GFX_SCLK:
ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetCurrentGfxclkIndex);
if (!ret) {
vega10_read_arg_from_smc(hwmgr, &sclk_idx);
smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetCurrentGfxclkIndex);
vega10_read_arg_from_smc(hwmgr, &sclk_idx);
if (sclk_idx < dpm_table->gfx_table.count) {
*((uint32_t *)value) = dpm_table->gfx_table.dpm_levels[sclk_idx].value;
*size = 4;
} else {
ret = -EINVAL;
}
break;
case AMDGPU_PP_SENSOR_GFX_MCLK:
ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetCurrentUclkIndex);
if (!ret) {
vega10_read_arg_from_smc(hwmgr, &mclk_idx);
smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetCurrentUclkIndex);
vega10_read_arg_from_smc(hwmgr, &mclk_idx);
if (mclk_idx < dpm_table->mem_table.count) {
*((uint32_t *)value) = dpm_table->mem_table.dpm_levels[mclk_idx].value;
*size = 4;
} else {
ret = -EINVAL;
}
break;
case AMDGPU_PP_SENSOR_GPU_LOAD:
ret = smum_send_msg_to_smc_with_parameter(hwmgr, PPSMC_MSG_GetAverageGfxActivity, 0);
if (!ret) {
vega10_read_arg_from_smc(hwmgr, &activity_percent);
*((uint32_t *)value) = activity_percent > 100 ? 100 : activity_percent;
*size = 4;
}
smum_send_msg_to_smc_with_parameter(hwmgr, PPSMC_MSG_GetAverageGfxActivity, 0);
vega10_read_arg_from_smc(hwmgr, &activity_percent);
*((uint32_t *)value) = activity_percent > 100 ? 100 : activity_percent;
*size = 4;
break;
case AMDGPU_PP_SENSOR_GPU_TEMP:
*((uint32_t *)value) = vega10_thermal_get_temperature(hwmgr);