This register contains how many blocks was sent in the past selective
updates.
Those registers are not kept set all the times but pulling it after flip
can show that the expected values are set for the current frame and the
previous ones too.

v2: Improved macros(Dhinakaran)

Cc: Rodrigo Vivi <[email protected]>
Cc: Dhinakaran Pandiyan <[email protected]>
Signed-off-by: José Roberto de Souza <[email protected]>
---
 drivers/gpu/drm/i915/i915_reg.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 44958d994bfa..f9712d05314b 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4272,6 +4272,15 @@ enum {
 #define EDP_PSR2_STATUS_STATE_MASK     (0xf << 28)
 #define EDP_PSR2_STATUS_STATE_SHIFT    28
 
+#define _PSR2_SU_STATUS_0              0x6F914
+#define _PSR2_SU_STATUS_1              0x6F918
+#define _PSR2_SU_STATUS_2              0x6F91C
+#define _PSR2_SU_STATUS(index)         _MMIO(_PICK_EVEN((index), 
_PSR2_SU_STATUS_0, _PSR2_SU_STATUS_1))
+#define PSR2_SU_STATUS(frame)          (_PSR2_SU_STATUS((frame) / 3))
+#define PSR2_SU_STATUS_SHIFT(frame)    (((frame) % 3) * 10)
+#define PSR2_SU_STATUS_MASK(frame)     (0x3ff << PSR2_SU_STATUS_SHIFT(frame))
+#define PSR2_SU_STATUS_FRAMES          8
+
 /* VGA port control */
 #define ADPA                   _MMIO(0x61100)
 #define PCH_ADPA                _MMIO(0xe1100)
-- 
2.20.0

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