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drm/amd/pm: add GFXCLK/SCLK clocks level print support for APUs

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add support that allow the userspace tool like RGP to get the GFX clock
value at runtime, the fix follow the old way to show the min/current/max
clocks level for compatible consideration.

=== Test ===
$ cat /sys/class/drm/card0/device/pp_dpm_sclk
0: 200Mhz *
1: 1100Mhz
2: 1600Mhz

then run stress test on one APU system.
$ cat /sys/class/drm/card0/device/pp_dpm_sclk
0: 200Mhz
1: 1040Mhz *
2: 1600Mhz

The current GFXCLK value is updated at runtime.

BugLink: https://gitlab.freedesktop.org/mesa/mesa/-/issues/5260
Reviewed-by: Huang Ray <Ray.Huang@amd.com>
Signed-off-by: Perry Yuan <Perry.Yuan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Perry Yuan 2021-10-28 06:05:42 -04:00 committed by Alex Deucher
parent bf55208391
commit 3dac776e34
4 changed files with 74 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
drivers/gpu/drm/amd/pm/swsmu/smu11/cyan_skillfish_ppt.c
View File

@ -309,6 +309,7 @@ static int cyan_skillfish_print_clk_levels(struct smu_context *smu,
{
int ret = 0, size = 0;
uint32_t cur_value = 0;
int i;
smu_cmn_get_sysfs_buf(&buf, &size);
@ -334,8 +335,6 @@ static int cyan_skillfish_print_clk_levels(struct smu_context *smu,
size += sysfs_emit_at(buf, size, "VDDC: %7umV %10umV\n",
CYAN_SKILLFISH_VDDC_MIN, CYAN_SKILLFISH_VDDC_MAX);
break;
case SMU_GFXCLK:
case SMU_SCLK:
case SMU_FCLK:
case SMU_MCLK:
case SMU_SOCCLK:
@ -346,6 +345,25 @@ static int cyan_skillfish_print_clk_levels(struct smu_context *smu,
return ret;
size += sysfs_emit_at(buf, size, "0: %uMhz *\n", cur_value);
break;
case SMU_SCLK:
case SMU_GFXCLK:
ret = cyan_skillfish_get_current_clk_freq(smu, clk_type, &cur_value);
if (ret)
return ret;
if (cur_value == CYAN_SKILLFISH_SCLK_MAX)
i = 2;
else if (cur_value == CYAN_SKILLFISH_SCLK_MIN)
i = 0;
else
i = 1;
size += sysfs_emit_at(buf, size, "0: %uMhz %s\n", CYAN_SKILLFISH_SCLK_MIN,
i == 0 ? "*" : "");
size += sysfs_emit_at(buf, size, "1: %uMhz %s\n",
i == 1 ? cur_value : cyan_skillfish_sclk_default,
i == 1 ? "*" : "");
size += sysfs_emit_at(buf, size, "2: %uMhz %s\n", CYAN_SKILLFISH_SCLK_MAX,
i == 2 ? "*" : "");
break;
default:
dev_warn(smu->adev->dev, "Unsupported clock type\n");
return ret;

26
drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c
View File

@ -683,6 +683,7 @@ static int vangogh_print_clk_levels(struct smu_context *smu,
int i, size = 0, ret = 0;
uint32_t cur_value = 0, value = 0, count = 0;
bool cur_value_match_level = false;
uint32_t min, max;
memset(&metrics, 0, sizeof(metrics));
@ -743,6 +744,13 @@ static int vangogh_print_clk_levels(struct smu_context *smu,
if (ret)
return ret;
break;
case SMU_GFXCLK:
case SMU_SCLK:
ret = smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_GetGfxclkFrequency, 0, &cur_value);
if (ret) {
return ret;
}
break;
default:
break;
}
@ -768,6 +776,24 @@ static int vangogh_print_clk_levels(struct smu_context *smu,
if (!cur_value_match_level)
size += sysfs_emit_at(buf, size, " %uMhz *\n", cur_value);
break;
case SMU_GFXCLK:
case SMU_SCLK:
min = (smu->gfx_actual_hard_min_freq > 0) ? smu->gfx_actual_hard_min_freq : smu->gfx_default_hard_min_freq;
max = (smu->gfx_actual_soft_max_freq > 0) ? smu->gfx_actual_soft_max_freq : smu->gfx_default_soft_max_freq;
if (cur_value == max)
i = 2;
else if (cur_value == min)
i = 0;
else
i = 1;
size += sysfs_emit_at(buf, size, "0: %uMhz %s\n", min,
i == 0 ? "*" : "");
size += sysfs_emit_at(buf, size, "1: %uMhz %s\n",
i == 1 ? cur_value : VANGOGH_UMD_PSTATE_STANDARD_GFXCLK,
i == 1 ? "*" : "");
size += sysfs_emit_at(buf, size, "2: %uMhz %s\n", max,
i == 2 ? "*" : "");
break;
default:
break;
}

27
drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c
View File

@ -697,6 +697,11 @@ static int yellow_carp_get_current_clk_freq(struct smu_context *smu,
case SMU_FCLK:
return smu_cmn_send_smc_msg_with_param(smu,
SMU_MSG_GetFclkFrequency, 0, value);
case SMU_GFXCLK:
case SMU_SCLK:
return smu_cmn_send_smc_msg_with_param(smu,
SMU_MSG_GetGfxclkFrequency, 0, value);
break;
default:
return -EINVAL;
}
@ -967,6 +972,7 @@ static int yellow_carp_print_clk_levels(struct smu_context *smu,
{
int i, size = 0, ret = 0;
uint32_t cur_value = 0, value = 0, count = 0;
uint32_t min, max;
smu_cmn_get_sysfs_buf(&buf, &size);
@ -1005,6 +1011,27 @@ static int yellow_carp_print_clk_levels(struct smu_context *smu,
cur_value == value ? "*" : "");
}
break;
case SMU_GFXCLK:
case SMU_SCLK:
ret = yellow_carp_get_current_clk_freq(smu, clk_type, &cur_value);
if (ret)
goto print_clk_out;
min = (smu->gfx_actual_hard_min_freq > 0) ? smu->gfx_actual_hard_min_freq : smu->gfx_default_hard_min_freq;
max = (smu->gfx_actual_soft_max_freq > 0) ? smu->gfx_actual_soft_max_freq : smu->gfx_default_soft_max_freq;
if (cur_value == max)
i = 2;
else if (cur_value == min)
i = 0;
else
i = 1;
size += sysfs_emit_at(buf, size, "0: %uMhz %s\n", min,
i == 0 ? "*" : "");
size += sysfs_emit_at(buf, size, "1: %uMhz %s\n",
i == 1 ? cur_value : YELLOW_CARP_UMD_PSTATE_GFXCLK,
i == 1 ? "*" : "");
size += sysfs_emit_at(buf, size, "2: %uMhz %s\n", max,
i == 2 ? "*" : "");
break;
default:
break;
}

1
drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.h
View File

@ -24,5 +24,6 @@
#define __YELLOW_CARP_PPT_H__
extern void yellow_carp_set_ppt_funcs(struct smu_context *smu);
#define YELLOW_CARP_UMD_PSTATE_GFXCLK 1100
#endif