[Why]
Before this patch, there was no way to set the gfxclk voltage curve in
the overdrive settings for navi10 through pp_od_clk_voltage
[How]
Add the required implementation to navi10's ppt dpm table editing
implementation, similar to the vega20 implementation and interface.
Signed-off-by: Matt Coffin <mcoffin13@xxxxxxxxx>
---
drivers/gpu/drm/amd/powerplay/navi10_ppt.c | 60 +++++++++++++++++++++-
drivers/gpu/drm/amd/powerplay/navi10_ppt.h | 2 +
2 files changed, 60 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
index 354f63103308..3e26c03d5eed 100644
--- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
@@ -1728,6 +1728,8 @@ static int navi10_od_edit_dpm_table(struct smu_context *smu, enum PP_OD_DPM_TABL
struct smu_table_context *table_context = &smu->smu_table;
OverDriveTable_t *od_table;
struct smu_11_0_overdrive_table *od_settings;
+ enum SMU_11_0_ODSETTING_ID freq_setting, voltage_setting;
+ uint16_t *freq_ptr, *voltage_ptr;
od_table = (OverDriveTable_t *)table_context->overdrive_table;
if (!smu->od_enabled) {
@@ -1824,8 +1826,62 @@ static int navi10_od_edit_dpm_table(struct smu_context *smu, enum PP_OD_DPM_TABL
}
break;
case PP_OD_EDIT_VDDC_CURVE:
- // TODO: implement
- return -ENOSYS;
+ if (!navi10_od_feature_is_supported(od_settings, SMU_11_0_ODFEATURE_GFXCLK_CURVE)) {
+ pr_warn("GFXCLK_CURVE not supported!\n");
+ return -ENOTSUPP;
+ }
+ if (size < 3) {
+ pr_info("invalid number of parameters: %d\n", size);
+ return -EINVAL;
+ }
+ if (!od_table) {
+ pr_info("Overdrive is not initialized\n");
+ return -EINVAL;
+ }
+
+ switch (input[0]) {
+ case 0:
+ freq_setting = SMU_11_0_ODSETTING_VDDGFXCURVEFREQ_P1;
+ voltage_setting = SMU_11_0_ODSETTING_VDDGFXCURVEVOLTAGE_P1;
+ freq_ptr = &od_table->GfxclkFreq1;
+ voltage_ptr = &od_table->GfxclkVolt1;
+ break;
+ case 1:
+ freq_setting = SMU_11_0_ODSETTING_VDDGFXCURVEFREQ_P2;
+ voltage_setting = SMU_11_0_ODSETTING_VDDGFXCURVEVOLTAGE_P2;
+ freq_ptr = &od_table->GfxclkFreq2;
+ voltage_ptr = &od_table->GfxclkVolt2;
+ break;
+ case 2:
+ freq_setting = SMU_11_0_ODSETTING_VDDGFXCURVEFREQ_P3;
+ voltage_setting = SMU_11_0_ODSETTING_VDDGFXCURVEVOLTAGE_P3;
+ freq_ptr = &od_table->GfxclkFreq3;
+ voltage_ptr = &od_table->GfxclkVolt3;
+ break;
+ default:
+ pr_info("Invalid VDDC_CURVE index: %ld\n", input[0]);
+ pr_info("Supported indices: [0, 1, 2]\n");
+ return -EINVAL;
+ }
+ ret = navi10_od_setting_check_range(od_settings, freq_setting, input[1]);
+ if (ret)
+ return ret;
+ // Allow setting zero to disable the OverDrive VDDC curve
+ if (input[2] != 0) {
+ ret = navi10_od_setting_check_range(od_settings, voltage_setting, input[2]);
+ if (ret)
+ return ret;
+ *freq_ptr = input[1];
+ *voltage_ptr = ((uint16_t)input[2]) * NAVI10_VOLTAGE_SCALE;
+ pr_debug("OD: set curve %ld: (%d, %d)\n", input[0], *freq_ptr, *voltage_ptr);
+ } else {
+ // If setting 0, disable all voltage curve settings
+ od_table->GfxclkVolt1 = 0;
+ od_table->GfxclkVolt2 = 0;
+ od_table->GfxclkVolt3 = 0;
+ }
+ navi10_dump_od_table(od_table);
+ break;
default:
return -ENOSYS;
}
diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.h b/drivers/gpu/drm/amd/powerplay/navi10_ppt.h
index a37e37c5f105..fd6dda1a67a1 100644
--- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.h
+++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.h
@@ -33,6 +33,8 @@
#define NAVI14_UMD_PSTATE_PEAK_XTX_GFXCLK (1717)
#define NAVI14_UMD_PSTATE_PEAK_XL_GFXCLK (1448)
+#define NAVI10_VOLTAGE_SCALE (4)
+
extern void navi10_set_ppt_funcs(struct smu_context *smu);
#endif
--
2.23.0
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