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-rw-r--r--arch/sparc/include/asm/scratchpad.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/scratchpad.h b/arch/sparc/include/asm/scratchpad.h
new file mode 100644
index 000000000..958351190
--- /dev/null
+++ b/arch/sparc/include/asm/scratchpad.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _SPARC64_SCRATCHPAD_H
+#define _SPARC64_SCRATCHPAD_H
+
+/* Sun4v scratchpad registers, accessed via ASI_SCRATCHPAD. */
+
+#define SCRATCHPAD_MMU_MISS 0x00 /* Shared with OBP - set by OBP */
+#define SCRATCHPAD_CPUID 0x08 /* Shared with OBP - set by hypervisor */
+#define SCRATCHPAD_UTSBREG1 0x10
+#define SCRATCHPAD_UTSBREG2 0x18
+ /* 0x20 and 0x28, hypervisor only... */
+#define SCRATCHPAD_UNUSED1 0x30
+#define SCRATCHPAD_UNUSED2 0x38 /* Reserved for OBP */
+
+#endif /* !(_SPARC64_SCRATCHPAD_H) */