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Diffstat (limited to 'linux/drm.h')
-rw-r--r--linux/drm.h20
1 files changed, 15 insertions, 5 deletions
diff --git a/linux/drm.h b/linux/drm.h
index f1abaabf..3def97f7 100644
--- a/linux/drm.h
+++ b/linux/drm.h
@@ -126,10 +126,11 @@ typedef struct drm_control {
} drm_control_t;
typedef enum drm_map_type {
- _DRM_FRAME_BUFFER = 0, /* WC (no caching), no core dump */
- _DRM_REGISTERS = 1, /* no caching, no core dump */
- _DRM_SHM = 2, /* shared, cached */
- _DRM_AGP = 3 /* AGP/GART */
+ _DRM_FRAME_BUFFER = 0, /* WC (no caching), no core dump */
+ _DRM_REGISTERS = 1, /* no caching, no core dump */
+ _DRM_SHM = 2, /* shared, cached */
+ _DRM_AGP = 3, /* AGP/GART */
+ _DRM_SCATTER_GATHER = 4 /* Scatter/gather memory for PCI DMA */
} drm_map_type_t;
typedef enum drm_map_flags {
@@ -238,7 +239,8 @@ typedef struct drm_buf_desc {
int high_mark; /* High water mark */
enum {
_DRM_PAGE_ALIGN = 0x01, /* Align on page boundaries for DMA */
- _DRM_AGP_BUFFER = 0x02 /* Buffer is in agp space */
+ _DRM_AGP_BUFFER = 0x02, /* Buffer is in agp space */
+ _DRM_SG_BUFFER = 0x04 /* Scatter/gather memory buffer */
} flags;
unsigned long agp_start; /* Start address of where the agp buffers
* are in the agp aperture */
@@ -344,6 +346,11 @@ typedef struct drm_agp_info {
unsigned short id_device;
} drm_agp_info_t;
+typedef struct drm_scatter_gather {
+ unsigned long size; /* In bytes -- will round to page boundary */
+ unsigned long handle; /* Used for mapping / unmapping */
+} drm_scatter_gather_t;
+
#define DRM_IOCTL_BASE 'd'
#define DRM_IO(nr) _IO(DRM_IOCTL_BASE,nr)
#define DRM_IOR(nr,size) _IOR(DRM_IOCTL_BASE,nr,size)
@@ -399,6 +406,9 @@ typedef struct drm_agp_info {
#define DRM_IOCTL_AGP_BIND DRM_IOW( 0x36, drm_agp_binding_t)
#define DRM_IOCTL_AGP_UNBIND DRM_IOW( 0x37, drm_agp_binding_t)
+#define DRM_IOCTL_SG_ALLOC DRM_IOW( 0x38, drm_scatter_gather_t)
+#define DRM_IOCTL_SG_FREE DRM_IOW( 0x39, drm_scatter_gather_t)
+
/* MGA specific ioctls */
#define DRM_IOCTL_MGA_INIT DRM_IOW( 0x40, drm_mga_init_t)
#define DRM_IOCTL_MGA_FLUSH DRM_IOW( 0x41, drm_lock_t)