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-rw-r--r--drivers/gpu/drm/i915/i915_reg.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index a87f41c..542128c 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4116,4 +4116,16 @@
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_ */