drm/i915: pageflip fixes

This patch brings the tree up to date with some fixes that were in a
more recent version of the page flipping patch you applied.  It fixes
pre-965 flip support, removes a leftover hack that forced alignment,
and initializes the pipe & plane CRTC mappings.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>

1 files changed, 13 insertions, 3 deletions

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 65b76fffd9e3..22dcd0851637 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1213,7 +1213,6 @@ intel_pin_and_fence_fb_obj(struct drm_device *dev, struct drm_gem_object *obj)
                 BUG();
         }
 
-        alignment = 256 * 1024;
         ret = i915_gem_object_pin(obj, alignment);
         if (ret != 0)
                 return ret;
@@ -4227,8 +4226,13 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
         OUT_RING(MI_DISPLAY_FLIP |
                  MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
         OUT_RING(fb->pitch);
-        OUT_RING(obj_priv->gtt_offset | obj_priv->tiling_mode);
-        OUT_RING((fb->width << 16) | fb->height);
+        if (IS_I965G(dev)) {
+                OUT_RING(obj_priv->gtt_offset | obj_priv->tiling_mode);
+                OUT_RING((fb->width << 16) | fb->height);
+        } else {
+                OUT_RING(obj_priv->gtt_offset);
+                OUT_RING(MI_NOOP);
+        }
         ADVANCE_LP_RING();
 
         mutex_unlock(&dev->struct_mutex);
@@ -4258,6 +4262,7 @@ static const struct drm_crtc_funcs intel_crtc_funcs = {
 
 static void intel_crtc_init(struct drm_device *dev, int pipe)
 {
+        drm_i915_private_t *dev_priv = dev->dev_private;
         struct intel_crtc *intel_crtc;
         int i;
 
@@ -4284,6 +4289,11 @@ static void intel_crtc_init(struct drm_device *dev, int pipe)
                 intel_crtc->plane = ((pipe == 0) ? 1 : 0);
         }
 
+        BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
+               dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL);
+        dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base;
+        dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base;
+
         intel_crtc->cursor_addr = 0;
         intel_crtc->dpms_mode = DRM_MODE_DPMS_OFF;
         drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs);