Reviewed-by: Evan Quan <evan.quan at amd.com>
________________________________
å??件人: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> 代表 Rex Zhu <Rex.Zhu at amd.com>
å??é??æ?¶é?´: 2018å¹´5æ??8æ?¥ 14:23:35
�件人: amd-gfx at lists.freedesktop.org
æ??é??: Zhu, Rex
主�: [PATCH] drm/amd/pp: Implement force_clock_level for RV
under manual dpm mode, user can set gfx/mem clock
through sysfs pp_dpm_sclk/mclk on Rv.
Signed-off-by: Rex Zhu <Rex.Zhu at amd.com>
---
drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c | 47 ++++++++++++++++++++++-
1 file changed, 46 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
index 68e78256..2152cf4 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
@@ -404,7 +404,7 @@ static int smu10_populate_clock_table(struct pp_hwmgr *hwmgr)
"Attempt to copy clock table from smc failed",
return result);
- if (0 == result && table->DcefClocks[0].Freq != 0) {
+ if (table->DcefClocks[0].Freq != 0) {
smu10_get_clock_voltage_dependency_table(hwmgr, &pinfo->vdd_dep_on_dcefclk,
NUM_DCEFCLK_DPM_LEVELS,
&smu10_data->clock_table.DcefClocks[0]);
@@ -775,6 +775,51 @@ static int smu10_get_dal_power_level(struct pp_hwmgr *hwmgr,
static int smu10_force_clock_level(struct pp_hwmgr *hwmgr,
enum pp_clock_type type, uint32_t mask)
{
+ struct smu10_hwmgr *data = hwmgr->backend;
+ struct smu10_voltage_dependency_table *mclk_table =
+ data->clock_vol_info.vdd_dep_on_fclk;
+ uint32_t low, high;
+
+ low = mask ? (ffs(mask) - 1) : 0;
+ high = mask ? (fls(mask) - 1) : 0;
+
+ switch (type) {
+ case PP_SCLK:
+ if (low > 2 || high > 2) {
+ pr_info("Currently sclk only support 3 levels on RV\n");
+ return -EINVAL;
+ }
+
+ smum_send_msg_to_smc_with_parameter(hwmgr,
+ PPSMC_MSG_SetHardMinGfxClk,
+ low == 2 ? data->gfx_max_freq_limit/100 :
+ low == 1 ? SMU10_UMD_PSTATE_GFXCLK :
+ data->gfx_min_freq_limit/100);
+
+ smum_send_msg_to_smc_with_parameter(hwmgr,
+ PPSMC_MSG_SetSoftMaxGfxClk,
+ high == 0 ? data->gfx_min_freq_limit/100 :
+ high == 1 ? SMU10_UMD_PSTATE_GFXCLK :
+ data->gfx_max_freq_limit/100);
+ break;
+
+ case PP_MCLK:
+ if (low > mclk_table->count - 1 || high > mclk_table->count - 1)
+ return -EINVAL;
+
+ smum_send_msg_to_smc_with_parameter(hwmgr,
+ PPSMC_MSG_SetHardMinFclkByFreq,
+ mclk_table->entries[low].clk/100);
+
+ smum_send_msg_to_smc_with_parameter(hwmgr,
+ PPSMC_MSG_SetSoftMaxFclkByFreq,
+ mclk_table->entries[high].clk/100);
+ break;
+
+ case PP_PCIE:
+ default:
+ break;
+ }
return 0;
}
--
1.9.1
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