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drm/amd/powerplay: add interface to get clock by type with latency for display (v2)

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This patch adds get clock by type with latency, display will use it to get
current clocks with latency.

v2: fix the missed mutex lock before return.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Huang Rui 2019-01-14 11:55:45 +08:00 committed by Alex Deucher
parent 6ec826846e
commit e5e4e22391
3 changed files with 60 additions and 7 deletions
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19
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c
View File

@ -392,14 +392,21 @@ bool dm_pp_get_clock_levels_by_type_with_latency(
void *pp_handle = adev->powerplay.pp_handle;
struct pp_clock_levels_with_latency pp_clks = { 0 };
const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
int ret;
if (!pp_funcs || !pp_funcs->get_clock_by_type_with_latency)
return false;
if (pp_funcs && pp_funcs->get_clock_by_type_with_latency) {
ret = pp_funcs->get_clock_by_type_with_latency(pp_handle,
dc_to_pp_clock_type(clk_type),
&pp_clks);
if (ret)
return false;
} else if (adev->smu.ppt_funcs && adev->smu.ppt_funcs->get_clock_by_type_with_latency) {
if (smu_get_clock_by_type_with_latency(&adev->smu,
dc_to_pp_clock_type(clk_type),
&pp_clks))
return false;
}
if (pp_funcs->get_clock_by_type_with_latency(pp_handle,
dc_to_pp_clock_type(clk_type),
&pp_clks))
return false;
pp_to_dc_clock_levels_with_latency(&pp_clks, clk_level_info, clk_type);

8
drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
View File

@ -224,6 +224,11 @@ struct pptable_funcs {
int (*populate_umd_state_clk)(struct smu_context *smu);
int (*print_clk_levels)(struct smu_context *smu, enum pp_clock_type type, char *buf);
int (*force_clk_levels)(struct smu_context *smu, enum pp_clock_type type, uint32_t mask);
int (*get_clock_by_type_with_latency)(struct smu_context *smu,
enum amd_pp_clock_type type,
struct
pp_clock_levels_with_latency
*clocks);
};
struct smu_funcs
@ -379,6 +384,9 @@ struct smu_funcs
((smu)->funcs->get_clock_by_type ? (smu)->funcs->get_clock_by_type((smu), (type), (clocks)) : 0)
#define smu_get_max_high_clocks(smu, clocks) \
((smu)->funcs->get_max_high_clocks ? (smu)->funcs->get_max_high_clocks((smu), (clocks)) : 0)
#define smu_get_clock_by_type_with_latency(smu, type, clocks) \
((smu)->ppt_funcs->get_clock_by_type_with_latency ? (smu)->ppt_funcs->get_clock_by_type_with_latency((smu), (type), (clocks)) : 0)
extern int smu_get_atom_data_table(struct smu_context *smu, uint32_t table,
uint16_t *size, uint8_t *frev, uint8_t *crev,

40
drivers/gpu/drm/amd/powerplay/vega20_ppt.c
View File

@ -782,6 +782,44 @@ static int vega20_force_clk_levels(struct smu_context *smu,
return 0;
}
static int vega20_get_clock_by_type_with_latency(struct smu_context *smu,
enum amd_pp_clock_type type,
struct pp_clock_levels_with_latency *clocks)
{
int ret;
struct vega20_single_dpm_table *single_dpm_table;
struct smu_dpm_context *smu_dpm = &smu->smu_dpm;
struct vega20_dpm_table *dpm_table = NULL;
dpm_table = smu_dpm->dpm_context;
mutex_lock(&smu->mutex);
switch (type) {
case amd_pp_sys_clock:
single_dpm_table = &(dpm_table->gfx_table);
ret = vega20_get_clk_table(smu, clocks, single_dpm_table);
break;
case amd_pp_mem_clock:
single_dpm_table = &(dpm_table->mem_table);
ret = vega20_get_clk_table(smu, clocks, single_dpm_table);
break;
case amd_pp_dcef_clock:
single_dpm_table = &(dpm_table->dcef_table);
ret = vega20_get_clk_table(smu, clocks, single_dpm_table);
break;
case amd_pp_soc_clock:
single_dpm_table = &(dpm_table->soc_table);
ret = vega20_get_clk_table(smu, clocks, single_dpm_table);
break;
default:
ret = -EINVAL;
}
mutex_unlock(&smu->mutex);
return ret;
}
static const struct pptable_funcs vega20_ppt_funcs = {
.alloc_dpm_context = vega20_allocate_dpm_context,
.store_powerplay_table = vega20_store_powerplay_table,
@ -794,7 +832,7 @@ static const struct pptable_funcs vega20_ppt_funcs = {
.populate_umd_state_clk = vega20_populate_umd_state_clk,
.print_clk_levels = vega20_print_clk_levels,
.force_clk_levels = vega20_force_clk_levels,
.get_clock_by_type_with_latency = vega20_get_clock_by_type_with_latency,
};
void vega20_set_ppt_funcs(struct smu_context *smu)