mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-09 03:10:30 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amd/pm: inform SMU RLC status thus enable/disable DPM feature for vangogh

Browse Source 
RLC is halted when system suspend/shutdown. However, due to DPM enabled, PMFW is
unaware of RLC being halted and will continue sending messages, which would
eventually cause an ACPI hang. Use the system_feature_control interface to
notify SMU the status of RLC (Normal/OFF) thus enable/disable DPM feature.

Signed-off-by: Xiaomeng Hou <Xiaomeng.Hou@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Lazar Lijo <Lijo.Lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Xiaomeng Hou
2020-12-01 18:33:33 +08:00
committed by Alex Deucher
parent fe96eb197e
commit a0f55287b5
2 changed files with 12 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c
View File

@@ -64,7 +64,7 @@ static struct cmn2asic_msg_mapping vangogh_message_map[SMU_MSG_MAX_COUNT] = {
MSG_MAP(PowerUpIspByTile, PPSMC_MSG_PowerUpIspByTile, 0),
MSG_MAP(PowerDownVcn, PPSMC_MSG_PowerDownVcn, 0),
MSG_MAP(PowerUpVcn, PPSMC_MSG_PowerUpVcn, 0),
MSG_MAP(Spare, PPSMC_MSG_spare, 0),
MSG_MAP(RlcPowerNotify, PPSMC_MSG_RlcPowerNotify, 0),
MSG_MAP(SetHardMinVcn, PPSMC_MSG_SetHardMinVcn, 0),
MSG_MAP(SetSoftMinGfxclk, PPSMC_MSG_SetSoftMinGfxclk, 0),
MSG_MAP(ActiveProcessNotify, PPSMC_MSG_ActiveProcessNotify, 0),
@@ -722,6 +722,12 @@ static int vangogh_set_fine_grain_gfx_freq_parameters(struct smu_context *smu)
return 0;
}
static int vangogh_system_features_control(struct smu_context *smu, bool en)
{
return smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_RlcPowerNotify,
en ? RLC_STATUS_NORMAL : RLC_STATUS_OFF, NULL);
}
static const struct pptable_funcs vangogh_ppt_funcs = {
.check_fw_status = smu_v11_0_check_fw_status,
@@ -749,6 +755,7 @@ static const struct pptable_funcs vangogh_ppt_funcs = {
.print_clk_levels = vangogh_print_fine_grain_clk,
.set_default_dpm_table = vangogh_set_default_dpm_tables,
.set_fine_grain_gfx_freq_parameters = vangogh_set_fine_grain_gfx_freq_parameters,
.system_features_control = vangogh_system_features_control,
};
void vangogh_set_ppt_funcs(struct smu_context *smu)

4
drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.h
View File

@@ -32,4 +32,8 @@ extern void vangogh_set_ppt_funcs(struct smu_context *smu);
#define VANGOGH_UMD_PSTATE_SOCCLK 678
#define VANGOGH_UMD_PSTATE_FCLK 800
/* RLC Power Status */
#define RLC_STATUS_OFF 0
#define RLC_STATUS_NORMAL 1
#endif