summaryrefslogtreecommitdiff
path: root/include/asm-sparc/ross.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-sparc/ross.h')
-rw-r--r--include/asm-sparc/ross.h191
1 files changed, 0 insertions, 191 deletions
diff --git a/include/asm-sparc/ross.h b/include/asm-sparc/ross.h
deleted file mode 100644
index ecb6e81786a6..000000000000
--- a/include/asm-sparc/ross.h
+++ /dev/null
@@ -1,191 +0,0 @@
-/*
- * ross.h: Ross module specific definitions and defines.
- *
- * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
- */
-
-#ifndef _SPARC_ROSS_H
-#define _SPARC_ROSS_H
-
-#include <asm/asi.h>
-#include <asm/page.h>
-
-/* Ross made Hypersparcs have a %psr 'impl' field of '0001'. The 'vers'
- * field has '1111'.
- */
-
-/* The MMU control register fields on the HyperSparc.
- *
- * -----------------------------------------------------------------
- * |implvers| RSV |CWR|SE|WBE| MID |BM| C|CS|MR|CM|RSV|CE|RSV|NF|ME|
- * -----------------------------------------------------------------
- * 31 24 23-22 21 20 19 18-15 14 13 12 11 10 9 8 7-2 1 0
- *
- * Phew, lots of fields there ;-)
- *
- * CWR: Cache Wrapping Enabled, if one cache wrapping is on.
- * SE: Snoop Enable, turns on bus snooping for cache activity if one.
- * WBE: Write Buffer Enable, one turns it on.
- * MID: The ModuleID of the chip for MBus transactions.
- * BM: Boot-Mode. One indicates the MMU is in boot mode.
- * C: Indicates whether accesses are cachable while the MMU is
- * disabled.
- * CS: Cache Size -- 0 = 128k, 1 = 256k
- * MR: Memory Reflection, one indicates that the memory bus connected
- * to the MBus supports memory reflection.
- * CM: Cache Mode -- 0 = write-through, 1 = copy-back
- * CE: Cache Enable -- 0 = no caching, 1 = cache is on
- * NF: No Fault -- 0 = faults trap the CPU from supervisor mode
- * 1 = faults from supervisor mode do not generate traps
- * ME: MMU Enable -- 0 = MMU is off, 1 = MMU is on
- */
-
-#define HYPERSPARC_CWENABLE 0x00200000
-#define HYPERSPARC_SBENABLE 0x00100000
-#define HYPERSPARC_WBENABLE 0x00080000
-#define HYPERSPARC_MIDMASK 0x00078000
-#define HYPERSPARC_BMODE 0x00004000
-#define HYPERSPARC_ACENABLE 0x00002000
-#define HYPERSPARC_CSIZE 0x00001000
-#define HYPERSPARC_MRFLCT 0x00000800
-#define HYPERSPARC_CMODE 0x00000400
-#define HYPERSPARC_CENABLE 0x00000100
-#define HYPERSPARC_NFAULT 0x00000002
-#define HYPERSPARC_MENABLE 0x00000001
-
-
-/* The ICCR instruction cache register on the HyperSparc.
- *
- * -----------------------------------------------
- * | | FTD | ICE |
- * -----------------------------------------------
- * 31 1 0
- *
- * This register is accessed using the V8 'wrasr' and 'rdasr'
- * opcodes, since not all assemblers understand them and those
- * that do use different semantics I will just hard code the
- * instruction with a '.word' statement.
- *
- * FTD: If set to one flush instructions executed during an
- * instruction cache hit occurs, the corresponding line
- * for said cache-hit is invalidated. If FTD is zero,
- * an unimplemented 'flush' trap will occur when any
- * flush is executed by the processor.
- *
- * ICE: If set to one, the instruction cache is enabled. If
- * zero, the cache will not be used for instruction fetches.
- *
- * All other bits are read as zeros, and writes to them have no
- * effect.
- *
- * Wheee, not many assemblers understand the %iccr register nor
- * the generic asr r/w instructions.
- *
- * 1000 0011 0100 0111 1100 0000 0000 0000 ! rd %iccr, %g1
- *
- * 0x 8 3 4 7 c 0 0 0 ! 0x8347c000
- *
- * 1011 1111 1000 0000 0110 0000 0000 0000 ! wr %g1, 0x0, %iccr
- *
- * 0x b f 8 0 6 0 0 0 ! 0xbf806000
- *
- */
-
-#define HYPERSPARC_ICCR_FTD 0x00000002
-#define HYPERSPARC_ICCR_ICE 0x00000001
-
-#ifndef __ASSEMBLY__
-
-static inline unsigned int get_ross_icr(void)
-{
- unsigned int icreg;
-
- __asm__ __volatile__(".word 0x8347c000\n\t" /* rd %iccr, %g1 */
- "mov %%g1, %0\n\t"
- : "=r" (icreg)
- : /* no inputs */
- : "g1", "memory");
-
- return icreg;
-}
-
-static inline void put_ross_icr(unsigned int icreg)
-{
- __asm__ __volatile__("or %%g0, %0, %%g1\n\t"
- ".word 0xbf806000\n\t" /* wr %g1, 0x0, %iccr */
- "nop\n\t"
- "nop\n\t"
- "nop\n\t"
- : /* no outputs */
- : "r" (icreg)
- : "g1", "memory");
-
- return;
-}
-
-/* HyperSparc specific cache flushing. */
-
-/* This is for the on-chip instruction cache. */
-static inline void hyper_flush_whole_icache(void)
-{
- __asm__ __volatile__("sta %%g0, [%%g0] %0\n\t"
- : /* no outputs */
- : "i" (ASI_M_FLUSH_IWHOLE)
- : "memory");
- return;
-}
-
-extern int vac_cache_size;
-extern int vac_line_size;
-
-static inline void hyper_clear_all_tags(void)
-{
- unsigned long addr;
-
- for(addr = 0; addr < vac_cache_size; addr += vac_line_size)
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"
- : /* no outputs */
- : "r" (addr), "i" (ASI_M_DATAC_TAG)
- : "memory");
-}
-
-static inline void hyper_flush_unconditional_combined(void)
-{
- unsigned long addr;
-
- for (addr = 0; addr < vac_cache_size; addr += vac_line_size)
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"
- : /* no outputs */
- : "r" (addr), "i" (ASI_M_FLUSH_CTX)
- : "memory");
-}
-
-static inline void hyper_flush_cache_user(void)
-{
- unsigned long addr;
-
- for (addr = 0; addr < vac_cache_size; addr += vac_line_size)
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"
- : /* no outputs */
- : "r" (addr), "i" (ASI_M_FLUSH_USER)
- : "memory");
-}
-
-static inline void hyper_flush_cache_page(unsigned long page)
-{
- unsigned long end;
-
- page &= PAGE_MASK;
- end = page + PAGE_SIZE;
- while (page < end) {
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"
- : /* no outputs */
- : "r" (page), "i" (ASI_M_FLUSH_PAGE)
- : "memory");
- page += vac_line_size;
- }
-}
-
-#endif /* !(__ASSEMBLY__) */
-
-#endif /* !(_SPARC_ROSS_H) */