separate i915 suspend/resume functions into their own file

[Patch against drm-next.  Consider this a trial balloon for our new Linux
development model.]

This is a big chunk of code.  Separating it out makes it easier to change
without churn on the main i915_drv.c file (and there will be churn as we
fix bugs and add things like kernel mode setting).  Also makes it easier
to share this file with BSD.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index e4bd01c511a9..a82b487de7b1 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -41,6 +41,11 @@
 #define DRIVER_DESC             "Intel Graphics"
 #define DRIVER_DATE             "20060119"
 
+enum pipe {
+        PIPE_A = 0,
+        PIPE_B,
+};
+
 /* Interface history:
  *
  * 1.1: Original.
@@ -269,6 +274,10 @@ extern void i915_mem_takedown(struct mem_block **heap);
 extern void i915_mem_release(struct drm_device * dev,
                              struct drm_file *file_priv, struct mem_block *heap);
 
+/* i915_suspend.c */
+extern int i915_save_state(struct drm_device *dev);
+extern int i915_restore_state(struct drm_device *dev);
+
 /* i915_opregion.c */
 extern int intel_opregion_init(struct drm_device *dev);
 extern void intel_opregion_free(struct drm_device *dev);
@@ -279,6 +288,8 @@ extern void opregion_enable_asle(struct drm_device *dev);
 #define I915_WRITE(reg,val)     DRM_WRITE32(dev_priv->mmio_map, (reg), (val))
 #define I915_READ16(reg)        DRM_READ16(dev_priv->mmio_map, (reg))
 #define I915_WRITE16(reg,val)   DRM_WRITE16(dev_priv->mmio_map, (reg), (val))
+#define I915_READ8(reg)         DRM_READ8(dev_priv->mmio_map, (reg))
+#define I915_WRITE8(reg,val)    DRM_WRITE8(dev_priv->mmio_map, (reg), (val))
 
 #define I915_VERBOSE 0