From: hersen wu <hersenxs.wu@xxxxxxx>
dc needs get uclk dpm table for bandwidth calculation
Signed-off-by: hersen wu <hersenxs.wu@xxxxxxx>
Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>
Reviewed-by: Huang Rui <ray.huang@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
.../gpu/drm/amd/powerplay/inc/amdgpu_smu.h | 3 ++
drivers/gpu/drm/amd/powerplay/navi10_ppt.c | 30 +++++++++++++++++++
2 files changed, 33 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index 8acc17973577..ccb41fc4f74f 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -611,6 +611,7 @@ struct pptable_funcs {
enum smu_clk_type clk_type,
uint32_t *value);
int (*get_thermal_temperature_range)(struct smu_context *smu, struct smu_temperature_range *range);
+ int (*get_uclk_dpm_states)(struct smu_context *smu, uint32_t *clocks_in_khz, uint32_t *num_states);
};
struct smu_funcs
@@ -897,6 +898,8 @@ struct smu_funcs
((smu)->funcs->register_irq_handler ? (smu)->funcs->register_irq_handler(smu) : 0)
#define smu_set_azalia_d3_pme(smu) \
((smu)->funcs->set_azalia_d3_pme ? (smu)->funcs->set_azalia_d3_pme((smu)) : 0)
+#define smu_get_uclk_dpm_states(smu, clocks_in_khz, num_states) \
+ ((smu)->ppt_funcs->get_uclk_dpm_states ? (smu)->ppt_funcs->get_uclk_dpm_states((smu), (clocks_in_khz), (num_states)) : 0)
extern int smu_get_atom_data_table(struct smu_context *smu, uint32_t table,
uint16_t *size, uint8_t *frev, uint8_t *crev,
diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
index 15413f646e5a..4db5ecd385a4 100644
--- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
@@ -1248,6 +1248,35 @@ static int navi10_read_sensor(struct smu_context *smu,
return ret;
}
+static int navi10_get_uclk_dpm_states(struct smu_context *smu, uint32_t *clocks_in_khz, uint32_t *num_states)
+{
+ uint32_t num_discrete_levels = 0;
+ uint16_t *dpm_levels = NULL;
+ uint16_t i = 0;
+ struct smu_table_context *table_context = &smu->smu_table;
+ PPTable_t *driver_ppt = NULL;
+
+ if (!clocks_in_khz || ! num_states || !table_context->driver_pptable)
+ return -EINVAL;
+
+ driver_ppt = table_context->driver_pptable;
+ num_discrete_levels = driver_ppt->DpmDescriptor[PPCLK_UCLK].NumDiscreteLevels;
+ dpm_levels = driver_ppt->FreqTableUclk;
+
+ if (num_discrete_levels == 0 || dpm_levels == NULL)
+ return -EINVAL;
+
+ *num_states = num_discrete_levels;
+ for (i = 0; i < num_discrete_levels; i++) {
+ /* convert to khz */
+ *clocks_in_khz = (*dpm_levels) * 1000;
+ clocks_in_khz++;
+ dpm_levels++;
+ }
+
+ return 0;
+}
+
static const struct pptable_funcs navi10_ppt_funcs = {
.tables_init = navi10_tables_init,
.alloc_dpm_context = navi10_allocate_dpm_context,
@@ -1281,6 +1310,7 @@ static const struct pptable_funcs navi10_ppt_funcs = {
.get_profiling_clk_mask = navi10_get_profiling_clk_mask,
.set_watermarks_table = navi10_set_watermarks_table,
.read_sensor = navi10_read_sensor,
+ .get_uclk_dpm_states = navi10_get_uclk_dpm_states,
};
void navi10_set_ppt_funcs(struct smu_context *smu)
--
2.20.1
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