From: Alex Deucher Date: Tue, 2 Jul 2013 22:46:28 +0000 (-0400) Subject: drm/radeon/dpm: implement force performance level for SI X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a160a6a3367611351624fca06838000b02aae2c7;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git drm/radeon/dpm: implement force performance level for SI Allows you to force the selected performance level via sysfs. Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index 9c1b7b1c0268..6ec4831fdb58 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -2287,6 +2287,7 @@ static struct radeon_asic si_asic = { .get_mclk = &ni_dpm_get_mclk, .print_power_state = &ni_dpm_print_power_state, .debugfs_print_current_performance_level = &si_dpm_debugfs_print_current_performance_level, + .force_performance_level = &si_dpm_force_performance_level, }, .pflip = { .pre_page_flip = &evergreen_pre_page_flip, diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index 2bacc777d549..7efa51a13b3c 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -683,6 +683,8 @@ void si_dpm_fini(struct radeon_device *rdev); void si_dpm_display_configuration_changed(struct radeon_device *rdev); void si_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev, struct seq_file *m); +int si_dpm_force_performance_level(struct radeon_device *rdev, + enum radeon_dpm_forced_level level); /* DCE8 - CIK */ void dce8_bandwidth_update(struct radeon_device *rdev); diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c index a7e97cd05e96..700a167be369 100644 --- a/drivers/gpu/drm/radeon/si_dpm.c +++ b/drivers/gpu/drm/radeon/si_dpm.c @@ -3231,16 +3231,38 @@ static int si_restrict_performance_levels_before_switch(struct radeon_device *rd 0 : -EINVAL; } -#if 0 -static int si_unrestrict_performance_levels_after_switch(struct radeon_device *rdev) +int si_dpm_force_performance_level(struct radeon_device *rdev, + enum radeon_dpm_forced_level level) { - if (si_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetForcedLevels, 0) != PPSMC_Result_OK) - return -EINVAL; + struct radeon_ps *rps = rdev->pm.dpm.current_ps; + struct ni_ps *ps = ni_get_ps(rps); + u32 levels; - return (si_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetEnabledLevels, 0) == PPSMC_Result_OK) ? - 0 : -EINVAL; + if (level == RADEON_DPM_FORCED_LEVEL_HIGH) { + if (si_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetEnabledLevels, 0) != PPSMC_Result_OK) + return -EINVAL; + + if (si_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetForcedLevels, 1) != PPSMC_Result_OK) + return -EINVAL; + } else if (level == RADEON_DPM_FORCED_LEVEL_LOW) { + if (si_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetForcedLevels, 0) != PPSMC_Result_OK) + return -EINVAL; + + levels = ps->performance_level_count - 1; + if (si_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetEnabledLevels, levels) != PPSMC_Result_OK) + return -EINVAL; + } else if (level == RADEON_DPM_FORCED_LEVEL_AUTO) { + if (si_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetForcedLevels, 0) != PPSMC_Result_OK) + return -EINVAL; + + if (si_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetEnabledLevels, 0) != PPSMC_Result_OK) + return -EINVAL; + } + + rdev->pm.dpm.forced_level = level; + + return 0; } -#endif static int si_set_boot_state(struct radeon_device *rdev) { @@ -5992,11 +6014,13 @@ int si_dpm_set_power_state(struct radeon_device *rdev) #if 0 /* XXX */ - ret = si_unrestrict_performance_levels_after_switch(rdev); + ret = si_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_AUTO); if (ret) { - DRM_ERROR("si_unrestrict_performance_levels_after_switch failed\n"); + DRM_ERROR("si_dpm_force_performance_level failed\n"); return ret; } +#else + rdev->pm.dpm.forced_level = RADEON_DPM_FORCED_LEVEL_AUTO; #endif return 0;