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drm/amd/pm: add get_dpm_ultimate_freq function for cyan skillfish

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Some clients(e.g., kfd) query sclk/mclk through this function.
As cyan skillfish doesn't support dpm, for sclk, set min/max
to CYAN_SKILLFISH_SCLK_MIN/CYAN_SKILLFISH_SCLK_MAX(to maintain the
existing logic).For others, set both min and max to current value.

Before this patch:
 # /opt/rocm/opencl/bin/clinfo

 Max clock frequency:                           0Mhz

After this patch:
 # /opt/rocm/opencl/bin/clinfo

 Max clock frequency:                           2000Mhz

v2:
 - Maintain the existing min/max sclk logic.(Lijo)
v3:
 - Avoid fetching metrics table twice.(Lijo)

Signed-off-by: Lang Yu <Lang.Yu@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lang Yu 2022-01-24 14:25:34 +08:00 committed by Alex Deucher
parent e9287ef8d4
commit d435c1ed56
1 changed files with 31 additions and 0 deletions
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31
drivers/gpu/drm/amd/pm/swsmu/smu11/cyan_skillfish_ppt.c
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@ -542,6 +542,36 @@ static int cyan_skillfish_od_edit_dpm_table(struct smu_context *smu,
return ret;
}
static int cyan_skillfish_get_dpm_ultimate_freq(struct smu_context *smu,
enum smu_clk_type clk_type,
uint32_t *min,
uint32_t *max)
{
int ret = 0;
uint32_t low, high;
switch (clk_type) {
case SMU_GFXCLK:
case SMU_SCLK:
low = CYAN_SKILLFISH_SCLK_MIN;
high = CYAN_SKILLFISH_SCLK_MAX;
break;
default:
ret = cyan_skillfish_get_current_clk_freq(smu, clk_type, &low);
if (ret)
return ret;
high = low;
break;
}
if (min)
*min = low;
if (max)
*max = high;
return 0;
}
static const struct pptable_funcs cyan_skillfish_ppt_funcs = {
.check_fw_status = smu_v11_0_check_fw_status,
@ -555,6 +585,7 @@ static const struct pptable_funcs cyan_skillfish_ppt_funcs = {
.is_dpm_running = cyan_skillfish_is_dpm_running,
.get_gpu_metrics = cyan_skillfish_get_gpu_metrics,
.od_edit_dpm_table = cyan_skillfish_od_edit_dpm_table,
.get_dpm_ultimate_freq = cyan_skillfish_get_dpm_ultimate_freq,
.register_irq_handler = smu_v11_0_register_irq_handler,
.notify_memory_pool_location = smu_v11_0_notify_memory_pool_location,
.send_smc_msg_with_param = smu_cmn_send_smc_msg_with_param,