1 files changed, 51 insertions, 0 deletions

diff --git a/arch/sparc/include/asm/memreg.h b/arch/sparc/include/asm/memreg.h
new file mode 100644
index 000000000000..845ad2b39183
--- /dev/null
+++ b/arch/sparc/include/asm/memreg.h
@@ -0,0 +1,51 @@
+#ifndef _SPARC_MEMREG_H
+#define _SPARC_MEMREG_H
+/* memreg.h:  Definitions of the values found in the synchronous
+ *            and asynchronous memory error registers when a fault
+ *            occurs on the sun4c.
+ *
+ * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ */
+
+/* First the synchronous error codes, these are usually just
+ * normal page faults.
+ */
+
+#define SUN4C_SYNC_WDRESET   0x0001  /* watchdog reset */
+#define SUN4C_SYNC_SIZE      0x0002  /* bad access size? whuz this? */
+#define SUN4C_SYNC_PARITY    0x0008  /* bad ram chips caused a parity error */
+#define SUN4C_SYNC_SBUS      0x0010  /* the SBUS had some problems... */
+#define SUN4C_SYNC_NOMEM     0x0020  /* translation to non-existent ram */
+#define SUN4C_SYNC_PROT      0x0040  /* access violated pte protections */
+#define SUN4C_SYNC_NPRESENT  0x0080  /* pte said that page was not present */
+#define SUN4C_SYNC_BADWRITE  0x8000  /* while writing something went bogus */
+
+#define SUN4C_SYNC_BOLIXED  \
+        (SUN4C_SYNC_WDRESET | SUN4C_SYNC_SIZE | SUN4C_SYNC_SBUS | \
+         SUN4C_SYNC_NOMEM | SUN4C_SYNC_PARITY)
+
+/* Now the asynchronous error codes, these are almost always produced
+ * by the cache writing things back to memory and getting a bad translation.
+ * Bad DVMA transactions can cause these faults too.
+ */
+
+#define SUN4C_ASYNC_BADDVMA 0x0010  /* error during DVMA access */
+#define SUN4C_ASYNC_NOMEM   0x0020  /* write back pointed to bad phys addr */
+#define SUN4C_ASYNC_BADWB   0x0080  /* write back points to non-present page */
+
+/* Memory parity error register with associated bit constants. */
+#ifndef __ASSEMBLY__
+extern __volatile__ unsigned long __iomem *sun4c_memerr_reg;
+#endif
+
+#define SUN4C_MPE_ERROR 0x80    /* Parity error detected. (ro) */
+#define SUN4C_MPE_MULTI 0x40    /* Multiple parity errors detected. (ro) */
+#define SUN4C_MPE_TEST  0x20    /* Write inverse parity. (rw) */
+#define SUN4C_MPE_CHECK 0x10    /* Enable parity checking. (rw) */
+#define SUN4C_MPE_ERR00 0x08    /* Parity error in bits 0-7. (ro) */
+#define SUN4C_MPE_ERR08 0x04    /* Parity error in bits 8-15. (ro) */
+#define SUN4C_MPE_ERR16 0x02    /* Parity error in bits 16-23. (ro) */
+#define SUN4C_MPE_ERR24 0x01    /* Parity error in bits 24-31. (ro) */
+#define SUN4C_MPE_ERRS  0x0F    /* Bit mask for the error bits. (ro) */
+
+#endif /* !(_SPARC_MEMREG_H) */