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path: root/drivers/gpu/drm/i915/i915_reg.h
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_reg.h')
-rw-r--r--drivers/gpu/drm/i915/i915_reg.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index f897a7092ce0..48c3aef5acaa 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -743,6 +743,7 @@
#define FPGA_DBG_RM_NOCLAIM (1<<31)
#define DERRMR 0x44050
+/* Note that HBLANK events are reserved on bdw+ */
#define DERRMR_PIPEA_SCANLINE (1<<0)
#define DERRMR_PIPEA_PRI_FLIP_DONE (1<<1)
#define DERRMR_PIPEA_SPR_FLIP_DONE (1<<2)