drm/radeon/dpm: add vce dpm support for TN (11fe3d6e) · Commits · 方亚芬 / linux

drivers/gpu/drm/radeon/trinity_dpm.c

+76 −0

Original line number	Diff line number	Diff line
		@@ -985,6 +985,15 @@ static void trinity_set_uvd_clock_after_set_eng_clock(struct radeon_device *rdev
		trinity_setup_uvd_clocks(rdev, new_rps, old_rps);
		}

		static void trinity_set_vce_clock(struct radeon_device *rdev,
		struct radeon_ps *new_rps,
		struct radeon_ps *old_rps)
		{
		if ((old_rps->evclk != new_rps->evclk) \|\|
		(old_rps->ecclk != new_rps->ecclk))
		radeon_set_vce_clocks(rdev, new_rps->evclk, new_rps->ecclk);
		}

		static void trinity_program_ttt(struct radeon_device *rdev)
		{
		struct trinity_power_info *pi = trinity_get_pi(rdev);
		@@ -1246,6 +1255,7 @@ int trinity_dpm_set_power_state(struct radeon_device *rdev)
		trinity_force_level_0(rdev);
		trinity_unforce_levels(rdev);
		trinity_set_uvd_clock_after_set_eng_clock(rdev, new_ps, old_ps);
		trinity_set_vce_clock(rdev, new_ps, old_ps);
		}
		trinity_release_mutex(rdev);

		@@ -1483,7 +1493,35 @@ static void trinity_adjust_uvd_state(struct radeon_device *rdev,
		}
		}

		static int trinity_get_vce_clock_voltage(struct radeon_device *rdev,
		u32 evclk, u32 ecclk, u16 *voltage)
		{
		u32 i;
		int ret = -EINVAL;
		struct radeon_vce_clock_voltage_dependency_table *table =
		&rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table;

		if (((evclk == 0) && (ecclk == 0)) \|\|
		(table && (table->count == 0))) {
		*voltage = 0;
		return 0;
		}

		for (i = 0; i < table->count; i++) {
		if ((evclk <= table->entries[i].evclk) &&
		(ecclk <= table->entries[i].ecclk)) {
		*voltage = table->entries[i].v;
		ret = 0;
		break;
		}
		}

		/* if no match return the highest voltage */
		if (ret)
		*voltage = table->entries[table->count - 1].v;

		return ret;
		}

		static void trinity_apply_state_adjust_rules(struct radeon_device *rdev,
		struct radeon_ps *new_rps,
		@@ -1496,6 +1534,7 @@ static void trinity_apply_state_adjust_rules(struct radeon_device *rdev,
		u32 min_sclk = pi->sys_info.min_sclk; /* XXX check against disp reqs */
		u32 sclk_in_sr = pi->sys_info.min_sclk; /* ??? */
		u32 i;
		u16 min_vce_voltage;
		bool force_high;
		u32 num_active_displays = rdev->pm.dpm.new_active_crtc_count;

		@@ -1504,6 +1543,14 @@ static void trinity_apply_state_adjust_rules(struct radeon_device *rdev,

		trinity_adjust_uvd_state(rdev, new_rps);

		if (new_rps->vce_active) {
		new_rps->evclk = rdev->pm.dpm.vce_states[rdev->pm.dpm.vce_level].evclk;
		new_rps->ecclk = rdev->pm.dpm.vce_states[rdev->pm.dpm.vce_level].ecclk;
		} else {
		new_rps->evclk = 0;
		new_rps->ecclk = 0;
		}

		for (i = 0; i < ps->num_levels; i++) {
		if (ps->levels[i].vddc_index < min_voltage)
		ps->levels[i].vddc_index = min_voltage;
		@@ -1512,6 +1559,17 @@ static void trinity_apply_state_adjust_rules(struct radeon_device *rdev,
		ps->levels[i].sclk =
		trinity_get_valid_engine_clock(rdev, min_sclk);

		/* patch in vce limits */
		if (new_rps->vce_active) {
		/* sclk */
		if (ps->levels[i].sclk < rdev->pm.dpm.vce_states[rdev->pm.dpm.vce_level].sclk)
		ps->levels[i].sclk = rdev->pm.dpm.vce_states[rdev->pm.dpm.vce_level].sclk;
		/* vddc */
		trinity_get_vce_clock_voltage(rdev, new_rps->evclk, new_rps->ecclk, &min_vce_voltage);
		if (ps->levels[i].vddc_index < min_vce_voltage)
		ps->levels[i].vddc_index = min_vce_voltage;
		}

		ps->levels[i].ds_divider_index =
		sumo_get_sleep_divider_id_from_clock(rdev, ps->levels[i].sclk, sclk_in_sr);

		@@ -1733,6 +1791,19 @@ static int trinity_parse_power_table(struct radeon_device *rdev)
		power_state_offset += 2 + power_state->v2.ucNumDPMLevels;
		}
		rdev->pm.dpm.num_ps = state_array->ucNumEntries;

		/* fill in the vce power states */
		for (i = 0; i < RADEON_MAX_VCE_LEVELS; i++) {
		u32 sclk;
		clock_array_index = rdev->pm.dpm.vce_states[i].clk_idx;
		clock_info = (union pplib_clock_info *)
		&clock_info_array->clockInfo[clock_array_index * clock_info_array->ucEntrySize];
		sclk = le16_to_cpu(clock_info->sumo.usEngineClockLow);
		sclk \|= clock_info->sumo.ucEngineClockHigh << 16;
		rdev->pm.dpm.vce_states[i].sclk = sclk;
		rdev->pm.dpm.vce_states[i].mclk = 0;
		}

		return 0;
		}

		@@ -1914,6 +1985,10 @@ int trinity_dpm_init(struct radeon_device *rdev)
		if (ret)
		return ret;

		ret = r600_parse_extended_power_table(rdev);
		if (ret)
		return ret;

		ret = trinity_parse_power_table(rdev);
		if (ret)
		return ret;
		@@ -2000,6 +2075,7 @@ void trinity_dpm_fini(struct radeon_device *rdev)
		}
		kfree(rdev->pm.dpm.ps);
		kfree(rdev->pm.dpm.priv);
		r600_free_extended_power_table(rdev);
		}

		u32 trinity_dpm_get_sclk(struct radeon_device *rdev, bool low)