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authorRafał Miłecki <zajec5@gmail.com>2010-03-02 22:06:51 +0100
committerDave Airlie <airlied@redhat.com>2010-03-15 10:23:22 +1000
commit839461d3b0e3082eb382f17a3e3899372f28649a (patch)
treee34106e15420df1ef6c726e35783ae0d562fcb66 /drivers/gpu
parent65388342d66a63a29c76058e94a00d7bc0c6423b (diff)
drm/radeon/kms: switch to condition waiting for reclocking
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 <zajec5@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/radeon/r100.c2
-rw-r--r--drivers/gpu/drm/radeon/r600.c2
-rw-r--r--drivers/gpu/drm/radeon/radeon.h1
-rw-r--r--drivers/gpu/drm/radeon/radeon_pm.c8
-rw-r--r--drivers/gpu/drm/radeon/rs600.c2
5 files changed, 12 insertions, 3 deletions
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 91eb762eb3f..73f9a79ed64 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 c5229019729..5b56a1b3902 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 ba93e5a20b2..b54d4f36c4d 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 d4d1c39a0e9..d800b86af4d 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 47f046b78c6..ac7c27adfb7 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)) {