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drm/amd/powerplay: add vega20_find/force_higest/lowest_dpm for SMU11 (v2)

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add vega20_find_highest_dpm_level, vega20_find_lowest_dpm_level,
    vega20_force_highest_dpm and vega20_force_lowest_dpm functions
    to support sys interface for SMU11.

v2: fix highest/lowest implementation changes error.

Signed-off-by: Chengming Gui <Jack.Gui@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chengming Gui 2019-01-18 10:09:46 +08:00 committed by Alex Deucher
parent 4dd35181ee
commit 78ff4a33ca
1 changed files with 111 additions and 0 deletions
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111
drivers/gpu/drm/amd/powerplay/vega20_ppt.c
View file

@ -1614,6 +1614,117 @@ vega20_notify_smc_dispaly_config(struct smu_context *smu)
return 0;
}
static uint32_t vega20_find_lowest_dpm_level(struct vega20_single_dpm_table *table)
{
uint32_t i;
for (i = 0; i < table->count; i++) {
if (table->dpm_levels[i].enabled)
break;
}
if (i >= table->count) {
i = 0;
table->dpm_levels[i].enabled = true;
}
return i;
}
static uint32_t vega20_find_highest_dpm_level(struct vega20_single_dpm_table *table)
{
int i = 0;
if (!table) {
pr_err("[%s] DPM Table does not exist!", __func__);
return 0;
}
if (table->count <= 0) {
pr_err("[%s] DPM Table has no entry!", __func__);
return 0;
}
if (table->count > MAX_REGULAR_DPM_NUMBER) {
pr_err("[%s] DPM Table has too many entries!", __func__);
return MAX_REGULAR_DPM_NUMBER - 1;
}
for (i = table->count - 1; i >= 0; i--) {
if (table->dpm_levels[i].enabled)
break;
}
if (i < 0) {
i = 0;
table->dpm_levels[i].enabled = true;
}
return i;
}
static int vega20_force_dpm_highest(struct smu_context *smu)
{
uint32_t soft_level;
int ret = 0;
struct vega20_dpm_table *dpm_table = (struct vega20_dpm_table *)smu->smu_dpm.dpm_context;
soft_level = vega20_find_highest_dpm_level(&(dpm_table->gfx_table));
dpm_table->gfx_table.dpm_state.soft_min_level =
dpm_table->gfx_table.dpm_state.soft_max_level =
dpm_table->gfx_table.dpm_levels[soft_level].value;
soft_level = vega20_find_highest_dpm_level(&(dpm_table->mem_table));
dpm_table->mem_table.dpm_state.soft_min_level =
dpm_table->mem_table.dpm_state.soft_max_level =
dpm_table->mem_table.dpm_levels[soft_level].value;
ret = vega20_upload_dpm_min_level(smu);
if (ret) {
pr_err("Failed to upload boot level to highest!");
return ret;
}
ret = vega20_upload_dpm_max_level(smu);
if (ret) {
pr_err("Failed to upload dpm max level to highest!");
return ret;
}
return ret;
}
static int vega20_force_dpm_lowest(struct smu_context *smu)
{
uint32_t soft_level;
int ret = 0;
struct vega20_dpm_table *dpm_table = (struct vega20_dpm_table *)smu->smu_dpm.dpm_context;
soft_level = vega20_find_lowest_dpm_level(&(dpm_table->gfx_table));
dpm_table->gfx_table.dpm_state.soft_min_level =
dpm_table->gfx_table.dpm_state.soft_max_level =
dpm_table->gfx_table.dpm_levels[soft_level].value;
soft_level = vega20_find_lowest_dpm_level(&(dpm_table->mem_table));
dpm_table->mem_table.dpm_state.soft_min_level =
dpm_table->mem_table.dpm_state.soft_max_level =
dpm_table->mem_table.dpm_levels[soft_level].value;
ret = vega20_upload_dpm_min_level(smu);
if (ret) {
pr_err("Failed to upload boot level to lowest!");
return ret;
}
ret = vega20_upload_dpm_max_level(smu);
if (ret) {
pr_err("Failed to upload dpm max level to lowest!");
return ret;
}
return ret;
}
static const struct pptable_funcs vega20_ppt_funcs = {
.alloc_dpm_context = vega20_allocate_dpm_context,
.store_powerplay_table = vega20_store_powerplay_table,