From 839461d3b0e3082eb382f17a3e3899372f28649a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Tue, 2 Mar 2010 22:06:51 +0100 Subject: drm/radeon/kms: switch to condition waiting for reclocking MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We tried to implement interruptible waiting with timeout (it was broken anyway) which was not a good idea as explained by Andrew. It's possible to avoid using additional variable but actually it inroduces using more complex in-kernel tools. So simply add one variable for condition. Signed-off-by: Rafał Miłecki Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_pm.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers/gpu/drm/radeon/radeon_pm.c') diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index d4d1c39a0e99..d800b86af4d6 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -353,10 +353,12 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev) rdev->pm.req_vblank |= (1 << 1); drm_vblank_get(rdev->ddev, 1); } - if (rdev->pm.active_crtcs) - wait_event_interruptible_timeout( - rdev->irq.vblank_queue, 0, + if (rdev->pm.active_crtcs) { + rdev->pm.vblank_sync = false; + wait_event_timeout( + rdev->irq.vblank_queue, rdev->pm.vblank_sync, msecs_to_jiffies(RADEON_WAIT_VBLANK_TIMEOUT)); + } if (rdev->pm.req_vblank & (1 << 0)) { rdev->pm.req_vblank &= ~(1 << 0); drm_vblank_put(rdev->ddev, 0); -- cgit v1.2.3 From d0d6cb81e7eb34d83461070ca3e919fba1db437c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Tue, 2 Mar 2010 22:06:52 +0100 Subject: drm/radeon/kms: prepare for more reclocking operations MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Rafał Miłecki Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_pm.c | 39 ++++++++++++++++++++++++++++---------- 1 file changed, 29 insertions(+), 10 deletions(-) (limited to 'drivers/gpu/drm/radeon/radeon_pm.c') diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index d800b86af4d6..4f37b524de7e 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -28,6 +28,7 @@ #define RADEON_RECLOCK_DELAY_MS 200 #define RADEON_WAIT_VBLANK_TIMEOUT 200 +static bool radeon_pm_debug_check_in_vbl(struct radeon_device *rdev, bool finish); 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_idle_work_handler(struct work_struct *work); @@ -179,6 +180,16 @@ static void radeon_get_power_state(struct radeon_device *rdev, rdev->pm.requested_power_state->non_clock_info.pcie_lanes); } +static inline void radeon_sync_with_vblank(struct radeon_device *rdev) +{ + if (rdev->pm.active_crtcs) { + rdev->pm.vblank_sync = false; + wait_event_timeout( + rdev->irq.vblank_queue, rdev->pm.vblank_sync, + msecs_to_jiffies(RADEON_WAIT_VBLANK_TIMEOUT)); + } +} + static void radeon_set_power_state(struct radeon_device *rdev) { /* if *_clock_mode are the same, *_power_state are as well */ @@ -189,11 +200,28 @@ static void radeon_set_power_state(struct radeon_device *rdev) rdev->pm.requested_clock_mode->sclk, rdev->pm.requested_clock_mode->mclk, rdev->pm.requested_power_state->non_clock_info.pcie_lanes); + /* set pcie lanes */ + /* TODO */ + /* set voltage */ + /* TODO */ + /* set engine clock */ + radeon_sync_with_vblank(rdev); + radeon_pm_debug_check_in_vbl(rdev, false); radeon_set_engine_clock(rdev, rdev->pm.requested_clock_mode->sclk); + radeon_pm_debug_check_in_vbl(rdev, true); + +#if 0 /* set memory clock */ + if (rdev->asic->set_memory_clock) { + radeon_sync_with_vblank(rdev); + radeon_pm_debug_check_in_vbl(rdev, false); + radeon_set_memory_clock(rdev, rdev->pm.requested_clock_mode->mclk); + radeon_pm_debug_check_in_vbl(rdev, true); + } +#endif rdev->pm.current_power_state = rdev->pm.requested_power_state; rdev->pm.current_clock_mode = rdev->pm.requested_clock_mode; @@ -333,10 +361,7 @@ static void radeon_pm_set_clocks_locked(struct radeon_device *rdev) break; } - /* check if we are in vblank */ - radeon_pm_debug_check_in_vbl(rdev, false); radeon_set_power_state(rdev); - radeon_pm_debug_check_in_vbl(rdev, true); rdev->pm.planned_action = PM_ACTION_NONE; } @@ -353,12 +378,7 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev) rdev->pm.req_vblank |= (1 << 1); drm_vblank_get(rdev->ddev, 1); } - if (rdev->pm.active_crtcs) { - rdev->pm.vblank_sync = false; - wait_event_timeout( - rdev->irq.vblank_queue, rdev->pm.vblank_sync, - msecs_to_jiffies(RADEON_WAIT_VBLANK_TIMEOUT)); - } + radeon_pm_set_clocks_locked(rdev); if (rdev->pm.req_vblank & (1 << 0)) { rdev->pm.req_vblank &= ~(1 << 0); drm_vblank_put(rdev->ddev, 0); @@ -368,7 +388,6 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev) drm_vblank_put(rdev->ddev, 1); } - radeon_pm_set_clocks_locked(rdev); mutex_unlock(&rdev->cp.mutex); } -- cgit v1.2.3 From 29fb52ca78b4e265ec6c626b0c7b2927953949cf Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 11 Mar 2010 10:01:17 -0500 Subject: drm/radeon/kms: expose thermal/fan i2c buses Look up i2c bus in the power table and expose it. You'll need to load a hwmon driver for any chips on the bus, this patch just exposes the bus. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_pm.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/gpu/drm/radeon/radeon_pm.c') diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 4f37b524de7e..6458d52be4ee 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -257,6 +257,12 @@ int radeon_pm_init(struct radeon_device *rdev) return 0; } +void radeon_pm_fini(struct radeon_device *rdev) +{ + if (rdev->pm.i2c_bus) + radeon_i2c_destroy(rdev->pm.i2c_bus); +} + void radeon_pm_compute_clocks(struct radeon_device *rdev) { struct drm_device *ddev = rdev->ddev; -- cgit v1.2.3 From 57f50d70e27f99a9a785c760b2123cdf6a68e2de Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Sun, 14 Mar 2010 16:31:36 -0400 Subject: drm/radeon/kms/pm: fix segfault in clock code Make sure we have a crtc assigned to the encoder before dereferencing it. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_pm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/drm/radeon/radeon_pm.c') diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 6458d52be4ee..a4b57493aa78 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -279,7 +279,8 @@ void radeon_pm_compute_clocks(struct radeon_device *rdev) list_for_each_entry(connector, &ddev->mode_config.connector_list, head) { if (connector->encoder && - connector->dpms != DRM_MODE_DPMS_OFF) { + connector->encoder->crtc && + connector->dpms != DRM_MODE_DPMS_OFF) { radeon_crtc = to_radeon_crtc(connector->encoder->crtc); rdev->pm.active_crtcs |= (1 << radeon_crtc->crtc_id); ++count; -- cgit v1.2.3