diff options
Diffstat (limited to 'linux/gamma_dma.c')
| -rw-r--r-- | linux/gamma_dma.c | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/linux/gamma_dma.c b/linux/gamma_dma.c index 3372f51ea..eb78c0374 100644 --- a/linux/gamma_dma.c +++ b/linux/gamma_dma.c @@ -88,13 +88,31 @@ static inline void gamma_dma_dispatch(drm_device_t *dev, unsigned long address, GAMMA_WRITE(GAMMA_DMACOUNT, length / 4); } -static inline void gamma_dma_quiescent(drm_device_t *dev) +static inline void gamma_dma_quiescent_single(drm_device_t *dev) { while (GAMMA_READ(GAMMA_DMACOUNT)) ; while (GAMMA_READ(GAMMA_INFIFOSPACE) < 3) ; + + GAMMA_WRITE(GAMMA_FILTERMODE, 1 << 10); + GAMMA_WRITE(GAMMA_SYNC, 0); + + do { + while (!GAMMA_READ(GAMMA_OUTFIFOWORDS)) + ; + } while (GAMMA_READ(GAMMA_OUTPUTFIFO) != GAMMA_SYNC_TAG); +} + +static inline void gamma_dma_quiescent_dual(drm_device_t *dev) +{ + while (GAMMA_READ(GAMMA_DMACOUNT)) + ; + while (GAMMA_READ(GAMMA_INFIFOSPACE) < 3) + ; + GAMMA_WRITE(GAMMA_BROADCASTMASK, 3); + GAMMA_WRITE(GAMMA_FILTERMODE, 1 << 10); GAMMA_WRITE(GAMMA_SYNC, 0); @@ -104,7 +122,6 @@ static inline void gamma_dma_quiescent(drm_device_t *dev) ; } while (GAMMA_READ(GAMMA_OUTPUTFIFO) != GAMMA_SYNC_TAG); - /* Read from second MX */ do { while (!GAMMA_READ(GAMMA_OUTFIFOWORDS + 0x10000)) @@ -789,8 +806,13 @@ int gamma_lock(struct inode *inode, struct file *filp, unsigned int cmd, if (!ret) { if (lock.flags & _DRM_LOCK_READY) gamma_dma_ready(dev); - if (lock.flags & _DRM_LOCK_QUIESCENT) - gamma_dma_quiescent(dev); + if (lock.flags & _DRM_LOCK_QUIESCENT) { + if (gamma_found() == 1) { + gamma_dma_quiescent_single(dev); + } else { + gamma_dma_quiescent_dual(dev); + } + } } DRM_DEBUG("%d %s\n", lock.context, ret ? "interrupted" : "has lock"); |