drm/i915: Pass drm_frambuffer to intel_compute_page_offset()

intel_compute_page_offsets() gets passed a bunch of the framebuffer
metadate sepearately. Just pass the framebuffer itself to make life
simpler for the caller, and make it less likely they would make a
mistake in the order of the arguments (as most as just unsigned ints and
such).

We still pass the pitch explicitly since for 90/270 degree rotation
the caller has to pass in the right thing.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1455569699-27905-7-git-send-email-ville.syrjala@linux.intel.com
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 7dc2b8b..8821533 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -423,8 +423,7 @@
 	crtc_h--;
 
 	linear_offset = y * fb->pitches[0] + x * cpp;
-	sprsurf_offset = intel_compute_tile_offset(dev_priv, &x, &y,
-						   fb->modifier[0], cpp,
+	sprsurf_offset = intel_compute_tile_offset(&x, &y, fb, 0,
 						   fb->pitches[0], rotation);
 	linear_offset -= sprsurf_offset;
 
@@ -557,8 +556,7 @@
 		sprscale = SPRITE_SCALE_ENABLE | (src_w << 16) | src_h;
 
 	linear_offset = y * fb->pitches[0] + x * cpp;
-	sprsurf_offset = intel_compute_tile_offset(dev_priv, &x, &y,
-						   fb->modifier[0], cpp,
+	sprsurf_offset = intel_compute_tile_offset(&x, &y, fb, 0,
 						   fb->pitches[0], rotation);
 	linear_offset -= sprsurf_offset;
 
@@ -695,8 +693,7 @@
 		dvsscale = DVS_SCALE_ENABLE | (src_w << 16) | src_h;
 
 	linear_offset = y * fb->pitches[0] + x * cpp;
-	dvssurf_offset = intel_compute_tile_offset(dev_priv, &x, &y,
-						   fb->modifier[0], cpp,
+	dvssurf_offset = intel_compute_tile_offset(&x, &y, fb, 0,
 						   fb->pitches[0], rotation);
 	linear_offset -= dvssurf_offset;