Add i915 ioctls to configure pipes for vblank interrupt.

i915 vblanks can be generated from either pipe a or b, however a disabled
pipe generates no interrupts. This change allows the X server to select
which pipe generates vblank interrupts.

From: Keith Packard <keith.packard@intel.com> via DRM CVS
Signed-off-by: Dave Airlie <airlied@linux.ie>

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/char/drm/i915_drv.h b/drivers/char/drm/i915_drv.h
index 7a65666899e4..2d565031c002 100644
--- a/drivers/char/drm/i915_drv.h
+++ b/drivers/char/drm/i915_drv.h
@@ -45,9 +45,10 @@
  * 1.2: Add Power Management
  * 1.3: Add vblank support
  * 1.4: Fix cmdbuffer path, add heap destroy
+ * 1.5: Add vblank pipe configuration
  */
 #define DRIVER_MAJOR            1
-#define DRIVER_MINOR            4
+#define DRIVER_MINOR            5
 #define DRIVER_PATCHLEVEL       0
 
 typedef struct _drm_i915_ring_buffer {
@@ -96,6 +97,7 @@ typedef struct drm_i915_private {
         int allow_batchbuffer;
         struct mem_block *agp_heap;
         unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds;
+        int vblank_pipe;
 } drm_i915_private_t;
 
 extern drm_ioctl_desc_t i915_ioctls[];
@@ -119,6 +121,8 @@ extern irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS);
 extern void i915_driver_irq_preinstall(drm_device_t * dev);
 extern void i915_driver_irq_postinstall(drm_device_t * dev);
 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);
 
 /* i915_mem.c */
 extern int i915_mem_alloc(DRM_IOCTL_ARGS);