[Intel-gfx] [PATCH 13/41] drm/i915: add SBI registers

[Eugeni Dodonov]

Those are responsible for the Sideband Interface programming.

v2: rename SBI bits to better reflect their meaning

Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov at intel.com>
---
 drivers/gpu/drm/i915/i915_reg.h |   12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 58fcfae..d6c0e36 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -3948,4 +3948,16 @@
 					DDI_BUF_TRANS_A, \
 					DDI_BUF_TRANS_B)
 
+/* Sideband Interface (SBI) is programmed indirectly, via
+ * SBI_ADDR, which contains the register offset; and SBI_DATA,
+ * which contains the payload */
+#define SBI_ADDR				0xC6000
+#define SBI_DATA				0xC6004
+#define SBI_CTL_STAT			0xC6008
+#define  SBI_CTL_OP_CRRD		(0x6<<8)
+#define  SBI_CTL_OP_CRWR		(0x7<<8)
+#define  SBI_RESPONSE_FAIL		(0x1<<1)
+#define  SBI_RESPONSE_SUCCESS	(0x0<<1)
+#define  SBI_BUSY				(0x1<<0)
+#define  SBI_READY				(0x0<<0)
 #endif /* _I915_REG_H_ */
-- 
1.7.9.5