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 <zaj...@gmail.com>
---
drivers/gpu/drm/radeon/r100.c | 2 ++
drivers/gpu/drm/radeon/r600.c | 2 ++
drivers/gpu/drm/radeon/radeon.h | 1 +
drivers/gpu/drm/radeon/radeon_pm.c | 8 +++++---
drivers/gpu/drm/radeon/rs600.c | 2 ++
5 files changed, 12 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 91eb762..73f9a79 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -312,10 +312,12 @@ int r100_irq_process(struct radeon_device *rdev)
/* Vertical blank interrupts */
if (status & RADEON_CRTC_VBLANK_STAT) {
drm_handle_vblank(rdev->ddev, 0);
+ rdev->pm.vblank_sync = true;
wake_up(&rdev->irq.vblank_queue);
}
if (status & RADEON_CRTC2_VBLANK_STAT) {
drm_handle_vblank(rdev->ddev, 1);
+ rdev->pm.vblank_sync = true;
wake_up(&rdev->irq.vblank_queue);
}
if (status & RADEON_FP_DETECT_STAT) {
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index c522901..5b56a1b 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -2765,6 +2765,7 @@ restart_ih:
case 0: /* D1 vblank */
if (disp_int & LB_D1_VBLANK_INTERRUPT) {
drm_handle_vblank(rdev->ddev, 0);
+ rdev->pm.vblank_sync = true;
wake_up(&rdev->irq.vblank_queue);
disp_int &= ~LB_D1_VBLANK_INTERRUPT;
DRM_DEBUG("IH: D1 vblank\n");
@@ -2786,6 +2787,7 @@ restart_ih:
case 0: /* D2 vblank */
if (disp_int & LB_D2_VBLANK_INTERRUPT) {
drm_handle_vblank(rdev->ddev, 1);
+ rdev->pm.vblank_sync = true;
wake_up(&rdev->irq.vblank_queue);
disp_int &= ~LB_D2_VBLANK_INTERRUPT;
DRM_DEBUG("IH: D2 vblank\n");
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 829e26e..0d7caee 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -687,6 +687,7 @@ struct radeon_pm {
bool downclocked;
int active_crtcs;
int req_vblank;
+ bool vblank_sync;
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 d4d1c39..d800b86 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);
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index 47f046b..ac7c27a 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -392,10 +392,12 @@ int rs600_irq_process(struct radeon_device *rdev)
/* Vertical blank interrupts */
if (G_007EDC_LB_D1_VBLANK_INTERRUPT(r500_disp_int)) {
drm_handle_vblank(rdev->ddev, 0);
+ rdev->pm.vblank_sync = true;
wake_up(&rdev->irq.vblank_queue);
}
if (G_007EDC_LB_D2_VBLANK_INTERRUPT(r500_disp_int)) {
drm_handle_vblank(rdev->ddev, 1);
+ rdev->pm.vblank_sync = true;
wake_up(&rdev->irq.vblank_queue);
}
if (G_007EDC_DC_HOT_PLUG_DETECT1_INTERRUPT(r500_disp_int)) {
--
1.6.4.2
------------------------------------------------------------------------------
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--
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