From f5d73a809e3c692ce90f4ea6f0dc994c424bfabe Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 16 Jan 2013 09:20:28 -0500 Subject: drm/radeon/dpm/rs780: restructure code Needed to properly handle dynamic state adjustment. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/rs780_dpm.c | 52 +++++++++++++++++++++++--------------- 1 file changed, 32 insertions(+), 20 deletions(-) (limited to 'drivers/gpu/drm/radeon/rs780_dpm.c') diff --git a/drivers/gpu/drm/radeon/rs780_dpm.c b/drivers/gpu/drm/radeon/rs780_dpm.c index a1497a6315d..8af1a0417c7 100644 --- a/drivers/gpu/drm/radeon/rs780_dpm.c +++ b/drivers/gpu/drm/radeon/rs780_dpm.c @@ -71,10 +71,11 @@ static void rs780_get_pm_mode_parameters(struct radeon_device *rdev) static void rs780_voltage_scaling_enable(struct radeon_device *rdev, bool enable); -static int rs780_initialize_dpm_power_state(struct radeon_device *rdev) +static int rs780_initialize_dpm_power_state(struct radeon_device *rdev, + struct radeon_ps *boot_ps) { struct atom_clock_dividers dividers; - struct igp_ps *default_state = rs780_get_ps(rdev->pm.dpm.boot_ps); + struct igp_ps *default_state = rs780_get_ps(boot_ps); int i, ret; ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM, @@ -104,7 +105,8 @@ static int rs780_initialize_dpm_power_state(struct radeon_device *rdev) return 0; } -static int rs780_initialize_dpm_parameters(struct radeon_device *rdev) +static int rs780_initialize_dpm_parameters(struct radeon_device *rdev, + struct radeon_ps *boot_ps) { int ret = 0; int i; @@ -140,7 +142,7 @@ static int rs780_initialize_dpm_parameters(struct radeon_device *rdev) r600_vid_rt_set_vrt(rdev, R600_VOLTAGERESPONSETIME_DFLT); r600_vid_rt_set_ssu(rdev, R600_SPLLSTEPUNIT_DFLT); - ret = rs780_initialize_dpm_power_state(rdev); + ret = rs780_initialize_dpm_power_state(rdev, boot_ps); r600_power_level_set_voltage_index(rdev, R600_POWER_LEVEL_LOW, 0); r600_power_level_set_voltage_index(rdev, R600_POWER_LEVEL_MEDIUM, 0); @@ -401,11 +403,13 @@ static void rs780_force_voltage_to_high(struct radeon_device *rdev) WREG32_P(GFX_MACRO_BYPASS_CNTL, 0, ~SPLL_BYPASS_CNTL); } -static int rs780_set_engine_clock_scaling(struct radeon_device *rdev) +static int rs780_set_engine_clock_scaling(struct radeon_device *rdev, + struct radeon_ps *new_ps, + struct radeon_ps *old_ps) { struct atom_clock_dividers min_dividers, max_dividers, current_max_dividers; - struct igp_ps *new_state = rs780_get_ps(rdev->pm.dpm.requested_ps); - struct igp_ps *old_state = rs780_get_ps(rdev->pm.dpm.current_ps); + struct igp_ps *new_state = rs780_get_ps(new_ps); + struct igp_ps *old_state = rs780_get_ps(old_ps); int ret; if ((new_state->sclk_high == old_state->sclk_high) && @@ -451,10 +455,12 @@ static int rs780_set_engine_clock_scaling(struct radeon_device *rdev) return 0; } -static void rs780_set_engine_clock_spc(struct radeon_device *rdev) +static void rs780_set_engine_clock_spc(struct radeon_device *rdev, + struct radeon_ps *new_ps, + struct radeon_ps *old_ps) { - struct igp_ps *new_state = rs780_get_ps(rdev->pm.dpm.requested_ps); - struct igp_ps *old_state = rs780_get_ps(rdev->pm.dpm.current_ps); + struct igp_ps *new_state = rs780_get_ps(new_ps); + struct igp_ps *old_state = rs780_get_ps(old_ps); struct igp_power_info *pi = rs780_get_pi(rdev); if ((new_state->sclk_high == old_state->sclk_high) && @@ -468,10 +474,12 @@ static void rs780_set_engine_clock_spc(struct radeon_device *rdev) } -static void rs780_activate_engine_clk_scaling(struct radeon_device *rdev) +static void rs780_activate_engine_clk_scaling(struct radeon_device *rdev, + struct radeon_ps *new_ps, + struct radeon_ps *old_ps) { - struct igp_ps *new_state = rs780_get_ps(rdev->pm.dpm.requested_ps); - struct igp_ps *old_state = rs780_get_ps(rdev->pm.dpm.current_ps); + struct igp_ps *new_state = rs780_get_ps(new_ps); + struct igp_ps *old_state = rs780_get_ps(old_ps); if ((new_state->sclk_high == old_state->sclk_high) && (new_state->sclk_low == old_state->sclk_low)) @@ -493,9 +501,10 @@ static u32 rs780_get_voltage_for_vddc_level(struct radeon_device *rdev, return pi->max_voltage; } -static void rs780_enable_voltage_scaling(struct radeon_device *rdev) +static void rs780_enable_voltage_scaling(struct radeon_device *rdev, + struct radeon_ps *new_ps) { - struct igp_ps *new_state = rs780_get_ps(rdev->pm.dpm.requested_ps); + struct igp_ps *new_state = rs780_get_ps(new_ps); struct igp_power_info *pi = rs780_get_pi(rdev); enum rs780_vddc_level vddc_high, vddc_low; @@ -536,13 +545,14 @@ static void rs780_enable_voltage_scaling(struct radeon_device *rdev) int rs780_dpm_enable(struct radeon_device *rdev) { struct igp_power_info *pi = rs780_get_pi(rdev); + struct radeon_ps *boot_ps = rdev->pm.dpm.boot_ps; rs780_get_pm_mode_parameters(rdev); rs780_disable_vbios_powersaving(rdev); if (r600_dynamicpm_enabled(rdev)) return -EINVAL; - if (rs780_initialize_dpm_parameters(rdev)) + if (rs780_initialize_dpm_parameters(rdev, boot_ps)) return -EINVAL; rs780_start_dpm(rdev); @@ -591,6 +601,8 @@ void rs780_dpm_disable(struct radeon_device *rdev) int rs780_dpm_set_power_state(struct radeon_device *rdev) { struct igp_power_info *pi = rs780_get_pi(rdev); + struct radeon_ps *new_ps = rdev->pm.dpm.requested_ps; + struct radeon_ps *old_ps = rdev->pm.dpm.current_ps; rs780_get_pm_mode_parameters(rdev); @@ -599,13 +611,13 @@ int rs780_dpm_set_power_state(struct radeon_device *rdev) mdelay(5); } - rs780_set_engine_clock_scaling(rdev); - rs780_set_engine_clock_spc(rdev); + rs780_set_engine_clock_scaling(rdev, new_ps, old_ps); + rs780_set_engine_clock_spc(rdev, new_ps, old_ps); - rs780_activate_engine_clk_scaling(rdev); + rs780_activate_engine_clk_scaling(rdev, new_ps, old_ps); if (pi->voltage_control) - rs780_enable_voltage_scaling(rdev); + rs780_enable_voltage_scaling(rdev, new_ps); return 0; } -- cgit v1.2.3