[PATCH 5.10 102/157] drm/amd/pm: fulfill the Polaris implementation for get_clock_by_type_with_latency()

Greg Kroah-Hartman
2021-03-22T12:49:04Z

From: Evan Quan <evan.quan@amd.com>

[ Upstream commit 690cdc2635849db8b782dbbcabfb1c7519c84fa1 ]

Fulfill Polaris get_clock_by_type_with_latency().

Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c | 67 +++++++++++++++++++
1 file changed, 67 insertions(+)

diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c
index 35629140fc7a..c5223a9e0d89 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c
@@ -4771,6 +4771,72 @@ static int smu7_get_clock_by_type(struct pp_hwmgr *hwmgr, enum amd_pp_clock_type
return 0;
}

+static int smu7_get_sclks_with_latency(struct pp_hwmgr *hwmgr,
+ struct pp_clock_levels_with_latency *clocks)
+{
+ struct phm_ppt_v1_information *table_info =
+ (struct phm_ppt_v1_information *)hwmgr->pptable;
+ struct phm_ppt_v1_clock_voltage_dependency_table *dep_sclk_table =
+ table_info->vdd_dep_on_sclk;
+ int i;
+
+ clocks->num_levels = 0;
+ for (i = 0; i < dep_sclk_table->count; i++) {
+ if (dep_sclk_table->entries[i].clk) {
+ clocks->data[clocks->num_levels].clocks_in_khz =
+ dep_sclk_table->entries[i].clk * 10;
+ clocks->num_levels++;
+ }
+ }
+
+ return 0;
+}
+
+static int smu7_get_mclks_with_latency(struct pp_hwmgr *hwmgr,
+ struct pp_clock_levels_with_latency *clocks)
+{
+ struct phm_ppt_v1_information *table_info =
+ (struct phm_ppt_v1_information *)hwmgr->pptable;
+ struct phm_ppt_v1_clock_voltage_dependency_table *dep_mclk_table =
+ table_info->vdd_dep_on_mclk;
+ int i;
+
+ clocks->num_levels = 0;
+ for (i = 0; i < dep_mclk_table->count; i++) {
+ if (dep_mclk_table->entries[i].clk) {
+ clocks->data[clocks->num_levels].clocks_in_khz =
+ dep_mclk_table->entries[i].clk * 10;
+ clocks->data[clocks->num_levels].latency_in_us =
+ smu7_get_mem_latency(hwmgr, dep_mclk_table->entries[i].clk);
+ clocks->num_levels++;
+ }
+ }
+
+ return 0;
+}
+
+static int smu7_get_clock_by_type_with_latency(struct pp_hwmgr *hwmgr,
+ enum amd_pp_clock_type type,
+ struct pp_clock_levels_with_latency *clocks)
+{
+ if (!(hwmgr->chip_id >= CHIP_POLARIS10 &&
+ hwmgr->chip_id <= CHIP_VEGAM))
+ return -EINVAL;
+
+ switch (type) {
+ case amd_pp_sys_clock:
+ smu7_get_sclks_with_latency(hwmgr, clocks);
+ break;
+ case amd_pp_mem_clock:
+ smu7_get_mclks_with_latency(hwmgr, clocks);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
static int smu7_notify_cac_buffer_info(struct pp_hwmgr *hwmgr,
uint32_t virtual_addr_low,
uint32_t virtual_addr_hi,
@@ -5188,6 +5254,7 @@ static const struct pp_hwmgr_func smu7_hwmgr_funcs = {
.get_mclk_od = smu7_get_mclk_od,
.set_mclk_od = smu7_set_mclk_od,
.get_clock_by_type = smu7_get_clock_by_type,
+ .get_clock_by_type_with_latency = smu7_get_clock_by_type_with_latency,
.read_sensor = smu7_read_sensor,
.dynamic_state_management_disable = smu7_disable_dpm_tasks,
.avfs_control = smu7_avfs_control,
--
2.30.1