diff options
| -rw-r--r-- | drivers/gpu/drm/gma500/accel_2d.c | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/gma500/psb_drv.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/gma500/psb_drv.h | 2 |
3 files changed, 8 insertions, 6 deletions
diff --git a/drivers/gpu/drm/gma500/accel_2d.c b/drivers/gpu/drm/gma500/accel_2d.c index f0cef7678d4..f0ce82aed65 100644 --- a/drivers/gpu/drm/gma500/accel_2d.c +++ b/drivers/gpu/drm/gma500/accel_2d.c @@ -111,8 +111,9 @@ static int psbfb_2d_submit(struct drm_psb_private *dev_priv, uint32_t *cmdbuf, int ret = 0; int i; unsigned submit_size; + unsigned long flags; - mutex_lock(&dev_priv->mutex_2d); + spin_lock_irqsave(&dev_priv->lock_2d, flags); while (size > 0) { submit_size = (size < 0x60) ? size : 0x60; size -= submit_size; @@ -127,7 +128,7 @@ static int psbfb_2d_submit(struct drm_psb_private *dev_priv, uint32_t *cmdbuf, (void)PSB_RSGX32(PSB_SGX_2D_SLAVE_PORT + i - 4); } - mutex_unlock(&dev_priv->mutex_2d); + spin_unlock_irqrestore(&dev_priv->lock_2d, flags); return ret; } @@ -327,8 +328,9 @@ int psbfb_sync(struct fb_info *info) struct drm_psb_private *dev_priv = dev->dev_private; unsigned long _end = jiffies + DRM_HZ; int busy = 0; + unsigned long flags; - mutex_lock(&dev_priv->mutex_2d); + spin_lock_irqsave(&dev_priv->lock_2d, flags); /* * First idle the 2D engine. */ @@ -357,6 +359,6 @@ int psbfb_sync(struct fb_info *info) _PSB_C2B_STATUS_BUSY) != 0); out: - mutex_unlock(&dev_priv->mutex_2d); + spin_unlock_irqrestore(&dev_priv->lock_2d, flags); return (busy) ? -EBUSY : 0; } diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c index 862bb8182b7..add3156cd8b 100644 --- a/drivers/gpu/drm/gma500/psb_drv.c +++ b/drivers/gpu/drm/gma500/psb_drv.c @@ -186,7 +186,7 @@ static int psb_do_init(struct drm_device *dev) spin_lock_init(&dev_priv->irqmask_lock); - mutex_init(&dev_priv->mutex_2d); + spin_lock_init(&dev_priv->lock_2d); PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK0); PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK1); diff --git a/drivers/gpu/drm/gma500/psb_drv.h b/drivers/gpu/drm/gma500/psb_drv.h index f46b3c1edb1..5ec8edf6516 100644 --- a/drivers/gpu/drm/gma500/psb_drv.h +++ b/drivers/gpu/drm/gma500/psb_drv.h @@ -606,7 +606,7 @@ struct drm_psb_private { void *fbdev; /* 2D acceleration */ - struct mutex mutex_2d; + spinlock_t lock_2d; }; |