drm/radeon: dpm updates for KV

This updates dpm support for KV asics. Notably there
are some changes in acp handling and forcing performance
levels.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/kv_dpm.c b/drivers/gpu/drm/radeon/kv_dpm.c
index c499dafd28fa90cbbb68bc6263247e403dc7843c..c87d1945a6f3bbfe2c89abf54a70cb81af1fb8df 100644 (file)
--- a/drivers/gpu/drm/radeon/kv_dpm.c
+++ b/drivers/gpu/drm/radeon/kv_dpm.c
@@ -40,6 +40,7 @@ static int kv_calculate_dpm_settings(struct radeon_device *rdev);
 static void kv_enable_new_levels(struct radeon_device *rdev);
 static void kv_program_nbps_index_settings(struct radeon_device *rdev,
                                           struct radeon_ps *new_rps);
+static int kv_set_enabled_level(struct radeon_device *rdev, u32 level);
 static int kv_set_enabled_levels(struct radeon_device *rdev);
 static int kv_force_dpm_highest(struct radeon_device *rdev);
 static int kv_force_dpm_lowest(struct radeon_device *rdev);
@@ -519,7 +520,7 @@ static int kv_set_dpm_boot_state(struct radeon_device *rdev)
 
 static void kv_program_vc(struct radeon_device *rdev)
 {
-       WREG32_SMC(CG_FTV_0, 0x3FFFC000);
+       WREG32_SMC(CG_FTV_0, 0x3FFFC100);
 }
 
 static void kv_clear_vc(struct radeon_device *rdev)
@@ -638,7 +639,10 @@ static int kv_force_lowest_valid(struct radeon_device *rdev)
 
 static int kv_unforce_levels(struct radeon_device *rdev)
 {
-       return kv_notify_message_to_smu(rdev, PPSMC_MSG_NoForcedLevel);
+       if (rdev->family == CHIP_KABINI)
+               return kv_notify_message_to_smu(rdev, PPSMC_MSG_NoForcedLevel);
+       else
+               return kv_set_enabled_levels(rdev);
 }
 
 static int kv_update_sclk_t(struct radeon_device *rdev)
@@ -1076,6 +1080,13 @@ static int kv_enable_ulv(struct radeon_device *rdev, bool enable)
                                        PPSMC_MSG_EnableULV : PPSMC_MSG_DisableULV);
 }
 
+static void kv_reset_acp_boot_level(struct radeon_device *rdev)
+{
+       struct kv_power_info *pi = kv_get_pi(rdev);
+
+       pi->acp_boot_level = 0xff;
+}
+
 static void kv_update_current_ps(struct radeon_device *rdev,
                                 struct radeon_ps *rps)
 {
@@ -1190,6 +1201,8 @@ int kv_dpm_enable(struct radeon_device *rdev)
                return ret;
        }
 
+       kv_reset_acp_boot_level(rdev);
+
        if (rdev->irq.installed &&
            r600_is_internal_thermal_sensor(rdev->pm.int_thermal_type)) {
                ret = kv_set_thermal_temperature_range(rdev, R600_TEMP_RANGE_MIN, R600_TEMP_RANGE_MAX);
@@ -1448,6 +1461,39 @@ static int kv_update_samu_dpm(struct radeon_device *rdev, bool gate)
        return kv_enable_samu_dpm(rdev, !gate);
 }
 
+static u8 kv_get_acp_boot_level(struct radeon_device *rdev)
+{
+       u8 i;
+       struct radeon_clock_voltage_dependency_table *table =
+               &rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table;
+
+       for (i = 0; i < table->count; i++) {
+               if (table->entries[i].clk >= 0) /* XXX */
+                       break;
+       }
+
+       if (i >= table->count)
+               i = table->count - 1;
+
+       return i;
+}
+
+static void kv_update_acp_boot_level(struct radeon_device *rdev)
+{
+       struct kv_power_info *pi = kv_get_pi(rdev);
+       u8 acp_boot_level;
+
+       if (!pi->caps_stable_p_state) {
+               acp_boot_level = kv_get_acp_boot_level(rdev);
+               if (acp_boot_level != pi->acp_boot_level) {
+                       pi->acp_boot_level = acp_boot_level;
+                       kv_send_msg_to_smc_with_parameter(rdev,
+                                                         PPSMC_MSG_ACPDPM_SetEnabledMask,
+                                                         (1 << pi->acp_boot_level));
+               }
+       }
+}
+
 static int kv_update_acp_dpm(struct radeon_device *rdev, bool gate)
 {
        struct kv_power_info *pi = kv_get_pi(rdev);
@@ -1459,7 +1505,7 @@ static int kv_update_acp_dpm(struct radeon_device *rdev, bool gate)
                if (pi->caps_stable_p_state)
                        pi->acp_boot_level = table->count - 1;
                else
-                       pi->acp_boot_level = 0;
+                       pi->acp_boot_level = kv_get_acp_boot_level(rdev);
 
                ret = kv_copy_bytes_to_smc(rdev,
                                           pi->dpm_table_start +
@@ -1769,6 +1815,7 @@ int kv_dpm_set_power_state(struct radeon_device *rdev)
                                return ret;
                        }
 #endif
+                       kv_update_acp_boot_level(rdev);
                        kv_update_sclk_t(rdev);
                        kv_enable_nb_dpm(rdev);
                }
@@ -1800,12 +1847,23 @@ void kv_dpm_setup_asic(struct radeon_device *rdev)
 
 void kv_dpm_reset_asic(struct radeon_device *rdev)
 {
-       kv_force_lowest_valid(rdev);
-       kv_init_graphics_levels(rdev);
-       kv_program_bootup_state(rdev);
-       kv_upload_dpm_settings(rdev);
-       kv_force_lowest_valid(rdev);
-       kv_unforce_levels(rdev);
+       struct kv_power_info *pi = kv_get_pi(rdev);
+
+       if (rdev->family == CHIP_KABINI) {
+               kv_force_lowest_valid(rdev);
+               kv_init_graphics_levels(rdev);
+               kv_program_bootup_state(rdev);
+               kv_upload_dpm_settings(rdev);
+               kv_force_lowest_valid(rdev);
+               kv_unforce_levels(rdev);
+       } else {
+               kv_init_graphics_levels(rdev);
+               kv_program_bootup_state(rdev);
+               kv_freeze_sclk_dpm(rdev, true);
+               kv_upload_dpm_settings(rdev);
+               kv_freeze_sclk_dpm(rdev, false);
+               kv_set_enabled_level(rdev, pi->graphics_boot_level);
+       }
 }
 
 //XXX use sumo_dpm_display_configuration_changed
@@ -1870,7 +1928,10 @@ static int kv_force_dpm_highest(struct radeon_device *rdev)
                        break;
        }
 
-       return kv_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_DPM_ForceState, i);
+       if (rdev->family == CHIP_KABINI)
+               return kv_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_DPM_ForceState, i);
+       else
+               return kv_set_enabled_level(rdev, i);
 }
 
 static int kv_force_dpm_lowest(struct radeon_device *rdev)
@@ -1887,7 +1948,10 @@ static int kv_force_dpm_lowest(struct radeon_device *rdev)
                        break;
        }
 
-       return kv_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_DPM_ForceState, i);
+       if (rdev->family == CHIP_KABINI)
+               return kv_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_DPM_ForceState, i);
+       else
+               return kv_set_enabled_level(rdev, i);
 }
 
 static u8 kv_get_sleep_divider_id_from_clock(struct radeon_device *rdev,
@@ -2033,12 +2097,12 @@ static void kv_apply_state_adjust_rules(struct radeon_device *rdev,
                ps->dpmx_nb_ps_lo = 0x1;
                ps->dpmx_nb_ps_hi = 0x0;
        } else {
-               ps->dpm0_pg_nb_ps_lo = 0x1;
+               ps->dpm0_pg_nb_ps_lo = 0x3;
                ps->dpm0_pg_nb_ps_hi = 0x0;
-               ps->dpmx_nb_ps_lo = 0x2;
-               ps->dpmx_nb_ps_hi = 0x1;
+               ps->dpmx_nb_ps_lo = 0x3;
+               ps->dpmx_nb_ps_hi = 0x0;
 
-               if (pi->sys_info.nb_dpm_enable && pi->battery_state) {
+               if (pi->sys_info.nb_dpm_enable) {
                        force_high = (mclk >= pi->sys_info.nbp_memory_clock[3]) ||
                                pi->video_start || (rdev->pm.dpm.new_active_crtc_count >= 3) ||
                                pi->disable_nb_ps3_in_battery;
@@ -2204,6 +2268,15 @@ static void kv_enable_new_levels(struct radeon_device *rdev)
        }
 }
 
+static int kv_set_enabled_level(struct radeon_device *rdev, u32 level)
+{
+       u32 new_mask = (1 << level);
+
+       return kv_send_msg_to_smc_with_parameter(rdev,
+                                                PPSMC_MSG_SCLKDPM_SetEnabledMask,
+                                                new_mask);
+}
+
 static int kv_set_enabled_levels(struct radeon_device *rdev)
 {
        struct kv_power_info *pi = kv_get_pi(rdev);