diff options
| author | Gareth Hughes <gareth@users.sourceforge.net> | 2001-06-18 12:59:42 +0000 |
|---|---|---|
| committer | Gareth Hughes <gareth@users.sourceforge.net> | 2001-06-18 12:59:42 +0000 |
| commit | 3a410059b43027c08bcb0fef307dd4ee7734197e (patch) | |
| tree | 39f50c57ebef8e38881fc69cf4dcc704170bec5a /linux | |
| parent | d87c873df05eb3a110316c7af2358553fa7f988e (diff) | |
Enable shared IRQs in DMA template, use in i810 driver.
Diffstat (limited to 'linux')
| -rw-r--r-- | linux/drm_dma.h | 11 | ||||
| -rw-r--r-- | linux/i810.h | 22 | ||||
| -rw-r--r-- | linux/i810_dma.c | 5 |
3 files changed, 28 insertions, 10 deletions
diff --git a/linux/drm_dma.h b/linux/drm_dma.h index e715bd41..85fa1472 100644 --- a/linux/drm_dma.h +++ b/linux/drm_dma.h @@ -40,6 +40,15 @@ #ifndef __HAVE_DMA_RECLAIM #define __HAVE_DMA_RECLAIM 0 #endif +#ifndef __HAVE_SHARED_IRQ +#define __HAVE_SHARED_IRQ 0 +#endif + +#if __HAVE_SHARED_IRQ +#define DRM_IRQ_TYPE SA_SHIRQ +#else +#define DRM_IRQ_TYPE 0 +#endif #if __HAVE_DMA @@ -534,7 +543,7 @@ int DRM(irq_install)( drm_device_t *dev, int irq ) /* Install handler */ ret = request_irq( dev->irq, DRM(dma_service), - 0, dev->devname, dev ); + DRM_IRQ_TYPE, dev->devname, dev ); if ( ret < 0 ) { down( &dev->struct_sem ); dev->irq = 0; diff --git a/linux/i810.h b/linux/i810.h index ed25b2a9..a5152bc0 100644 --- a/linux/i810.h +++ b/linux/i810.h @@ -62,9 +62,10 @@ #define __HAVE_DMA_IRQ 1 #define __HAVE_DMA_IRQ_BH 1 +#define __HAVE_SHARED_IRQ 1 #define DRIVER_PREINSTALL() do { \ drm_i810_private_t *dev_priv = \ - (drm_i810_private_t *)dev->dev_private; \ + (drm_i810_private_t *)dev->dev_private; \ u16 tmp; \ tmp = I810_READ16( I810REG_HWSTAM ); \ tmp = tmp & 0x6000; \ @@ -80,7 +81,7 @@ #define DRIVER_POSTINSTALL() do { \ drm_i810_private_t *dev_priv = \ - (drm_i810_private_t *)dev->dev_private; \ + (drm_i810_private_t *)dev->dev_private; \ u16 tmp; \ tmp = I810_READ16( I810REG_INT_ENABLE_R ); \ tmp = tmp & 0x6000; \ @@ -90,15 +91,18 @@ #define DRIVER_UNINSTALL() do { \ drm_i810_private_t *dev_priv = \ - (drm_i810_private_t *)dev->dev_private; \ + (drm_i810_private_t *)dev->dev_private; \ u16 tmp; \ - tmp = I810_READ16( I810REG_INT_IDENTITY_R ); \ - tmp = tmp & ~(0x6000); /* Clear all interrupts */ \ - if ( tmp != 0 ) I810_WRITE16( I810REG_INT_IDENTITY_R, tmp ); \ + if ( dev_priv ) { \ + tmp = I810_READ16( I810REG_INT_IDENTITY_R ); \ + tmp = tmp & ~(0x6000); /* Clear all interrupts */ \ + if ( tmp != 0 ) \ + I810_WRITE16( I810REG_INT_IDENTITY_R, tmp ); \ \ - tmp = I810_READ16( I810REG_INT_ENABLE_R ); \ - tmp = tmp & 0x6000; /* Disable all interrupts */ \ - I810_WRITE16( I810REG_INT_ENABLE_R, tmp ); \ + tmp = I810_READ16( I810REG_INT_ENABLE_R ); \ + tmp = tmp & 0x6000; /* Disable all interrupts */ \ + I810_WRITE16( I810REG_INT_ENABLE_R, tmp ); \ + } \ } while (0) /* Buffer customization: diff --git a/linux/i810_dma.c b/linux/i810_dma.c index 8a5503ea..25caca6b 100644 --- a/linux/i810_dma.c +++ b/linux/i810_dma.c @@ -1123,6 +1123,11 @@ int i810_clear_bufs(struct inode *inode, struct file *filp, return -EINVAL; } + /* GH: Someone's doing nasty things... */ + if (!dev->dev_private) { + return -EINVAL; + } + i810_dma_dispatch_clear( dev, clear.flags, clear.clear_color, clear.clear_depth ); |