drm/i915: Fix updating FBC

We need to track different state on each generation in order to detect
when we need to refresh the FBC registers.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index c8b22005ec18..b3efb30b2270 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -219,6 +219,7 @@ struct intel_device_info {
 };
 
 enum no_fbc_reason {
+        FBC_NO_OUTPUT, /* no outputs enabled to compress */
         FBC_STOLEN_TOO_SMALL, /* not enough space to hold compressed buffers */
         FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
         FBC_MODE_TOO_LARGE, /* mode too large for compression */
@@ -307,8 +308,10 @@ typedef struct drm_i915_private {
 
         unsigned long cfb_size;
         unsigned long cfb_pitch;
+        unsigned long cfb_offset;
         int cfb_fence;
         int cfb_plane;
+        int cfb_y;
 
         int irq_enabled;