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Diffstat (limited to 'linux-core/drm_bufs.c')
-rw-r--r--linux-core/drm_bufs.c87
1 files changed, 46 insertions, 41 deletions
diff --git a/linux-core/drm_bufs.c b/linux-core/drm_bufs.c
index 7ae95fcc..95858b80 100644
--- a/linux-core/drm_bufs.c
+++ b/linux-core/drm_bufs.c
@@ -37,14 +37,6 @@
#include <linux/vmalloc.h>
#include "drmP.h"
-#ifndef __HAVE_PCI_DMA
-#define __HAVE_PCI_DMA 0
-#endif
-
-#ifndef __HAVE_SG
-#define __HAVE_SG 0
-#endif
-
/**
* Compute size order. Returns the exponent of the smaller power of two which
* is greater or equal to given number.
@@ -111,11 +103,13 @@ int DRM(initmap)( drm_device_t *dev, unsigned int offset, unsigned int size, int
#ifdef __alpha__
map->offset += dev->hose->mem_space->start;
#endif
-#if __REALLY_HAVE_MTRR
- if ( map->type == _DRM_FRAME_BUFFER ||
- (map->flags & _DRM_WRITE_COMBINING) ) {
- map->mtrr = mtrr_add( map->offset, map->size,
- MTRR_TYPE_WRCOMB, 1 );
+#if __OS_HAS_MTRR
+ if ( dev->driver_features & DRIVER_USE_MTRR) {
+ if ( map->type == _DRM_FRAME_BUFFER ||
+ (map->flags & _DRM_WRITE_COMBINING) ) {
+ map->mtrr = mtrr_add( map->offset, map->size,
+ MTRR_TYPE_WRCOMB, 1 );
+ }
}
#endif
if (map->type == _DRM_REGISTERS)
@@ -130,7 +124,6 @@ int DRM(initmap)( drm_device_t *dev, unsigned int offset, unsigned int size, int
return 0;
}
-
/**
* Ioctl to specify a range of memory that is available for mapping by a non-root process.
*
@@ -208,11 +201,13 @@ int DRM(addmap)( struct inode *inode, struct file *filp,
#ifdef __alpha__
map->offset += dev->hose->mem_space->start;
#endif
-#if __REALLY_HAVE_MTRR
- if ( map->type == _DRM_FRAME_BUFFER ||
- (map->flags & _DRM_WRITE_COMBINING) ) {
- map->mtrr = mtrr_add( map->offset, map->size,
- MTRR_TYPE_WRCOMB, 1 );
+#if __OS_HAS_MTRR
+ if (dev->driver_features & DRIVER_USE_MTRR) {
+ if ( map->type == _DRM_FRAME_BUFFER ||
+ (map->flags & _DRM_WRITE_COMBINING) ) {
+ map->mtrr = mtrr_add( map->offset, map->size,
+ MTRR_TYPE_WRCOMB, 1 );
+ }
}
#endif
if (map->type == _DRM_REGISTERS)
@@ -240,13 +235,15 @@ int DRM(addmap)( struct inode *inode, struct file *filp,
dev->lock.hw_lock = map->handle; /* Pointer to lock */
}
break;
-#if __REALLY_HAVE_AGP
+#if __OS_HAS_AGP
case _DRM_AGP:
+ if (dev->driver_features & DRIVER_USE_AGP) {
#ifdef __alpha__
- map->offset += dev->hose->mem_space->start;
+ map->offset += dev->hose->mem_space->start;
#endif
- map->offset += dev->agp->base;
- map->mtrr = dev->agp->agp_mtrr; /* for getmap */
+ map->offset += dev->agp->base;
+ map->mtrr = dev->agp->agp_mtrr; /* for getmap */
+ }
break;
#endif
case _DRM_SCATTER_GATHER:
@@ -368,8 +365,6 @@ int DRM(rmmap)(struct inode *inode, struct file *filp,
return 0;
}
-#if __HAVE_DMA
-
/**
* Cleanup after an error on one of the addbufs() functions.
*
@@ -417,7 +412,7 @@ static void DRM(cleanup_buf_error)(drm_device_t *dev, drm_buf_entry_t *entry)
}
}
-#if __REALLY_HAVE_AGP
+#if __OS_HAS_AGP
/**
* Add AGP buffers for DMA transfers (ioctl).
*
@@ -602,9 +597,8 @@ int DRM(addbufs_agp)( struct inode *inode, struct file *filp,
atomic_dec( &dev->buf_alloc );
return 0;
}
-#endif /* __REALLY_HAVE_AGP */
+#endif /* __OS_HAS_AGP */
-#if __HAVE_PCI_DMA
int DRM(addbufs_pci)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg )
{
@@ -629,6 +623,8 @@ int DRM(addbufs_pci)( struct inode *inode, struct file *filp,
drm_buf_t **temp_buflist;
drm_buf_desc_t __user *argp = (void __user *)arg;
+ if (!(dev->driver_features & DRIVER_PCI_DMA)) return -EINVAL;
+
if ( !dma ) return -EINVAL;
if ( copy_from_user( &request, argp, sizeof(request) ) )
@@ -842,9 +838,7 @@ int DRM(addbufs_pci)( struct inode *inode, struct file *filp,
return 0;
}
-#endif /* __HAVE_PCI_DMA */
-#if __HAVE_SG
int DRM(addbufs_sg)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg )
{
@@ -867,6 +861,8 @@ int DRM(addbufs_sg)( struct inode *inode, struct file *filp,
int i;
drm_buf_t **temp_buflist;
+ if (!(dev->driver_features & DRIVER_SG)) return -EINVAL;
+
if ( !dma ) return -EINVAL;
if ( copy_from_user( &request, argp, sizeof(request) ) )
@@ -1016,7 +1012,6 @@ int DRM(addbufs_sg)( struct inode *inode, struct file *filp,
atomic_dec( &dev->buf_alloc );
return 0;
}
-#endif /* __HAVE_SG */
/**
* Add buffers for DMA transfers (ioctl).
@@ -1036,26 +1031,25 @@ int DRM(addbufs)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg )
{
drm_buf_desc_t request;
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+
+ if (!(dev->driver_features & DRIVER_HAVE_DMA))
+ return -EINVAL;
if ( copy_from_user( &request, (drm_buf_desc_t __user *)arg,
sizeof(request) ) )
return -EFAULT;
-#if __REALLY_HAVE_AGP
+#if __OS_HAS_AGP
if ( request.flags & _DRM_AGP_BUFFER )
return DRM(addbufs_agp)( inode, filp, cmd, arg );
else
#endif
-#if __HAVE_SG
if ( request.flags & _DRM_SG_BUFFER )
return DRM(addbufs_sg)( inode, filp, cmd, arg );
else
-#endif
-#if __HAVE_PCI_DMA
return DRM(addbufs_pci)( inode, filp, cmd, arg );
-#else
- return -EINVAL;
-#endif
}
@@ -1087,6 +1081,9 @@ int DRM(infobufs)( struct inode *inode, struct file *filp,
int i;
int count;
+ if (!(dev->driver_features & DRIVER_HAVE_DMA))
+ return -EINVAL;
+
if ( !dma ) return -EINVAL;
spin_lock( &dev->count_lock );
@@ -1168,6 +1165,9 @@ int DRM(markbufs)( struct inode *inode, struct file *filp,
int order;
drm_buf_entry_t *entry;
+ if (!(dev->driver_features & DRIVER_HAVE_DMA))
+ return -EINVAL;
+
if ( !dma ) return -EINVAL;
if ( copy_from_user( &request,
@@ -1215,6 +1215,9 @@ int DRM(freebufs)( struct inode *inode, struct file *filp,
int idx;
drm_buf_t *buf;
+ if (!(dev->driver_features & DRIVER_HAVE_DMA))
+ return -EINVAL;
+
if ( !dma ) return -EINVAL;
if ( copy_from_user( &request,
@@ -1272,6 +1275,9 @@ int DRM(mapbufs)( struct inode *inode, struct file *filp,
drm_buf_map_t request;
int i;
+ if (!(dev->driver_features & DRIVER_HAVE_DMA))
+ return -EINVAL;
+
if ( !dma ) return -EINVAL;
spin_lock( &dev->count_lock );
@@ -1286,8 +1292,8 @@ int DRM(mapbufs)( struct inode *inode, struct file *filp,
return -EFAULT;
if ( request.count >= dma->buf_count ) {
- if ( (__HAVE_AGP && (dma->flags & _DRM_DMA_USE_AGP)) ||
- (__HAVE_SG && (dma->flags & _DRM_DMA_USE_SG)) ) {
+ if (( (dev->driver_features & DRIVER_USE_AGP) && (dma->flags & _DRM_DMA_USE_AGP)) ||
+ ( (dev->driver_features & DRIVER_SG) && (dma->flags & _DRM_DMA_USE_SG)) ) {
drm_map_t *map = dev->agp_buffer_map;
if ( !map ) {
@@ -1369,4 +1375,3 @@ int DRM(mapbufs)( struct inode *inode, struct file *filp,
return retcode;
}
-#endif /* __HAVE_DMA */
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-06 01:07:55 +0000