From 530079a8f3f35828a80ba4981c1be902982363e7 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 23 Dec 2009 14:39:36 -0500 Subject: [PATCH] drm/radeon/kms: use power states for dynamic reclocking Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon.h | 4 ---- drivers/gpu/drm/radeon/radeon_pm.c | 31 ++++++++++++++---------------- 2 files changed, 14 insertions(+), 21 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index ece84fde76a6..da1177375976 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -666,10 +666,6 @@ struct radeon_pm { bool vblank_callback; int active_crtcs; int req_vblank; - uint32_t min_gpu_engine_clock; - uint32_t min_gpu_memory_clock; - uint32_t min_mode_engine_clock; - uint32_t min_mode_memory_clock; fixed20_12 max_bandwidth; fixed20_12 igp_sideport_mclk; fixed20_12 igp_system_mclk; diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 87d2776624bb..f500c8d200e7 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -26,7 +26,6 @@ #define RADEON_IDLE_LOOP_MS 100 #define RADEON_RECLOCK_DELAY_MS 200 -static void radeon_pm_check_limits(struct radeon_device *rdev); static void radeon_pm_set_clocks_locked(struct radeon_device *rdev); static void radeon_pm_set_clocks(struct radeon_device *rdev); static void radeon_pm_reclock_work_handler(struct work_struct *work); @@ -186,12 +185,21 @@ static void radeon_get_power_state(struct radeon_device *rdev, radeon_pick_clock_mode(rdev, rdev->pm.requested_power_state, POWER_MODE_TYPE_HIGH); break; } + DRM_INFO("Requested: e: %d m: %d p: %d\n", + rdev->pm.requested_power_state->requested_clock_mode->sclk, + rdev->pm.requested_power_state->requested_clock_mode->mclk, + rdev->pm.requested_power_state->non_clock_info.pcie_lanes); } static void radeon_set_power_state(struct radeon_device *rdev) { if (rdev->pm.requested_power_state == rdev->pm.current_power_state) return; + + DRM_INFO("Setting: e: %d m: %d p: %d\n", + rdev->pm.requested_power_state->requested_clock_mode->sclk, + rdev->pm.requested_power_state->requested_clock_mode->mclk, + rdev->pm.requested_power_state->non_clock_info.pcie_lanes); /* set pcie lanes */ /* set voltage */ /* set engine clock */ @@ -216,8 +224,6 @@ int radeon_pm_init(struct radeon_device *rdev) radeon_print_power_mode_info(rdev); } - radeon_pm_check_limits(rdev); - if (radeon_debugfs_pm_init(rdev)) { DRM_ERROR("Failed to register debugfs file for PM!\n"); } @@ -235,12 +241,6 @@ int radeon_pm_init(struct radeon_device *rdev) return 0; } -static void radeon_pm_check_limits(struct radeon_device *rdev) -{ - rdev->pm.min_gpu_engine_clock = rdev->clock.default_sclk - 5000; - rdev->pm.min_gpu_memory_clock = rdev->clock.default_mclk - 5000; -} - void radeon_pm_compute_clocks(struct radeon_device *rdev) { struct drm_device *ddev = rdev->ddev; @@ -287,8 +287,6 @@ void radeon_pm_compute_clocks(struct radeon_device *rdev) mutex_unlock(&rdev->pm.mutex); } } else if (count == 1) { - rdev->pm.min_mode_engine_clock = rdev->pm.min_gpu_engine_clock; - rdev->pm.min_mode_memory_clock = rdev->pm.min_gpu_memory_clock; /* TODO: Increase clocks if needed for current mode */ if (rdev->pm.state == PM_STATE_MINIMUM) { @@ -326,23 +324,22 @@ static void radeon_pm_set_clocks_locked(struct radeon_device *rdev) /*radeon_fence_wait_last(rdev);*/ switch (rdev->pm.planned_action) { case PM_ACTION_UPCLOCK: - radeon_set_engine_clock(rdev, rdev->clock.default_sclk); + radeon_get_power_state(rdev, PM_ACTION_UPCLOCK); rdev->pm.downclocked = false; break; case PM_ACTION_DOWNCLOCK: - radeon_set_engine_clock(rdev, - rdev->pm.min_mode_engine_clock); + radeon_get_power_state(rdev, PM_ACTION_DOWNCLOCK); rdev->pm.downclocked = true; break; case PM_ACTION_MINIMUM: - radeon_set_engine_clock(rdev, - rdev->pm.min_gpu_engine_clock); + radeon_get_power_state(rdev, PM_ACTION_MINIMUM); break; case PM_ACTION_NONE: + radeon_get_power_state(rdev, PM_ACTION_NONE); DRM_ERROR("%s: PM_ACTION_NONE\n", __func__); break; } - + radeon_set_power_state(rdev); rdev->pm.planned_action = PM_ACTION_NONE; } -- 2.39.2