drm: i915: Add ioctl for scheduling buffer swaps at vertical blanks.
This uses the core facility to schedule a driver callback that will be called
ASAP after the given vertical blank interrupt with the HW lock held.
Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/char/drm/i915_drv.h b/drivers/char/drm/i915_drv.h
index 5f0c4fa..334b0ce 100644
--- a/drivers/char/drm/i915_drv.h
+++ b/drivers/char/drm/i915_drv.h
@@ -71,6 +71,13 @@
DRMFILE filp; /* 0: free, -1: heap, other: real files */
};
+typedef struct _drm_i915_vbl_swap {
+ struct list_head head;
+ drm_drawable_t drw_id;
+ unsigned int pipe;
+ unsigned int sequence;
+} drm_i915_vbl_swap_t;
+
typedef struct drm_i915_private {
drm_local_map_t *sarea;
drm_local_map_t *mmio_map;
@@ -83,6 +90,7 @@
dma_addr_t dma_status_page;
unsigned long counter;
+ unsigned int cpp;
int back_offset;
int front_offset;
int current_page;
@@ -98,6 +106,10 @@
struct mem_block *agp_heap;
unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds;
int vblank_pipe;
+
+ spinlock_t swaps_lock;
+ drm_i915_vbl_swap_t vbl_swaps;
+ unsigned int swaps_pending;
} drm_i915_private_t;
extern drm_ioctl_desc_t i915_ioctls[];
@@ -124,6 +136,7 @@
extern void i915_driver_irq_uninstall(drm_device_t * dev);
extern int i915_vblank_pipe_set(DRM_IOCTL_ARGS);
extern int i915_vblank_pipe_get(DRM_IOCTL_ARGS);
+extern int i915_vblank_swap(DRM_IOCTL_ARGS);
/* i915_mem.c */
extern int i915_mem_alloc(DRM_IOCTL_ARGS);
@@ -257,6 +270,10 @@
#define GFX_OP_DRAWRECT_INFO_I965 ((0x7900<<16)|0x2)
+#define XY_SRC_COPY_BLT_CMD ((2<<29)|(0x53<<22)|6)
+#define XY_SRC_COPY_BLT_WRITE_ALPHA (1<<21)
+#define XY_SRC_COPY_BLT_WRITE_RGB (1<<20)
+
#define MI_BATCH_BUFFER ((0x30<<23)|1)
#define MI_BATCH_BUFFER_START (0x31<<23)
#define MI_BATCH_BUFFER_END (0xA<<23)