Yes, the peak profile model just set the max frequency for SCLK/UCLK.
If not implement the interface also will fine and will use the smu_default_set_performance_level handle it.
Thanks,
Prike
From: Wang, Kevin(Yang) <Kevin1.Wang@xxxxxxx>
Sent: Thursday, September 26, 2019 1:20 PM
To: Liang, Prike <Prike.Liang@xxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Quan, Evan <Evan.Quan@xxxxxxx>; Huang, Ray <Ray.Huang@xxxxxxx>; keneth.feng@xxxxxxx
Subject: Re: [PATCH 7/8] drm/amd/powerplay: implement the interface for setting sclk/uclk profile_peak level
this patch is not needed for apu.
by default, the smu will use max value as peak value.
refs:smu_default_set_performance_level
Add the interface for setting sclk and uclk peak frequency.
Signed-off-by: Prike Liang <Prike.Liang@xxxxxxx>
---
drivers/gpu/drm/amd/powerplay/renoir_ppt.c | 40 ++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
index 151d78e..c63518a 100644
--- a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
@@ -510,6 +510,45 @@ static int renoir_set_power_profile_mode(struct smu_context *smu, long *input, u
return 0;
}
+static int renoir_set_peak_clock_by_device(struct smu_context *smu)
+{
+ int ret = 0;
+ uint32_t sclk_freq = 0, uclk_freq = 0;
+
+ ret = smu_get_dpm_freq_range(smu, SMU_SCLK, NULL, &sclk_freq);
+ if (ret)
+ return ret;
+
+ ret = smu_set_soft_freq_range(smu, SMU_SCLK, sclk_freq, sclk_freq);
+ if (ret)
+ return ret;
+
+ ret = smu_get_dpm_freq_range(smu, SMU_UCLK, NULL, &uclk_freq);
+ if (ret)
+ return ret;
+
+ ret = smu_set_soft_freq_range(smu, SMU_UCLK, uclk_freq, uclk_freq);
+ if (ret)
+ return ret;
+
+ return ret;
+}
+
+static int renoir_set_performance_level(struct smu_context *smu, enum amd_dpm_forced_level level)
+{
+ int ret = 0;
+
+ switch (level) {
+ case AMD_DPM_FORCED_LEVEL_PROFILE_PEAK:
+ ret = renoir_set_peak_clock_by_device(smu);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
static const struct pptable_funcs renoir_ppt_funcs = {
.get_smu_msg_index = renoir_get_smu_msg_index,
@@ -526,6 +565,7 @@ static const struct pptable_funcs renoir_ppt_funcs = {
.get_profiling_clk_mask = renoir_get_profiling_clk_mask,
.force_clk_levels = renoir_force_clk_levels,
.set_power_profile_mode = renoir_set_power_profile_mode,
+ .set_performance_level = renoir_set_performance_level,
};
void renoir_set_ppt_funcs(struct smu_context *smu)
--
2.7.4
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