[src/trunk]: src/sys/arch/hpcsh/hpcsh add missing cache flush code.

[uch <uch%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/377cf87c7fe0
branches:  trunk
changeset: 521879:377cf87c7fe0
user:      uch <uch%NetBSD.org@localhost>
date:      Thu Feb 07 17:05:22 2002 +0000

description:
add missing cache flush code.

diffstat:

 sys/arch/hpcsh/hpcsh/kloader_machdep.c |  34 ++++++++++++++++++++++++++++++----
 1 files changed, 30 insertions(+), 4 deletions(-)

diffs (64 lines):

diff -r 058aaf94c340 -r 377cf87c7fe0 sys/arch/hpcsh/hpcsh/kloader_machdep.c
--- a/sys/arch/hpcsh/hpcsh/kloader_machdep.c    Thu Feb 07 16:52:37 2002 +0000
+++ b/sys/arch/hpcsh/hpcsh/kloader_machdep.c    Thu Feb 07 17:05:22 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: kloader_machdep.c,v 1.1 2002/01/29 18:44:24 uch Exp $  */
+/*     $NetBSD: kloader_machdep.c,v 1.2 2002/02/07 17:05:22 uch Exp $  */
 
 /*-
  * Copyright (c) 2001, 2002 The NetBSD Foundation, Inc.
@@ -36,9 +36,35 @@
 #include <sys/param.h>
 #include <sys/systm.h>
 
-#include <sh3/cpufunc.h>
+#include <sh3/mmureg.h>
 #include <machine/kloader.h>
 
+#define SH3_CCA                        0xf0000000
+
+#define SH7709A_CACHE_LINESZ           16
+#define SH7709A_CACHE_ENTRY            256
+#define SH7709A_CACHE_WAY              4
+#define SH7709A_CACHE_SIZE                                             \
+       (SH7709A_CACHE_LINESZ * SH7709A_CACHE_ENTRY * SH7709A_CACHE_WAY)
+
+#define SH7709A_CACHE_ENTRY_SHIFT      4
+#define SH7709A_CACHE_ENTRY_MASK       0x00000ff0
+#define SH7709A_CACHE_WAY_SHIFT                12
+#define SH7709A_CACHE_WAY_MASK         0x00003000
+
+#define _SH7709A_CACHE_FLUSH()                                         \
+do {                                                                   \
+       u_int32_t __e, __w, __wa, __a;                                  \
+                                                                       \
+       for (__w = 0; __w < SH7709A_CACHE_WAY; __w++) {                 \
+               __wa = SH3_CCA | __w << SH7709A_CACHE_WAY_SHIFT;        \
+               for (__e = 0; __e < SH7709A_CACHE_ENTRY; __e++) {       \
+                       __a = __wa |(__e << SH7709A_CACHE_ENTRY_SHIFT); \
+                       (*(__volatile__ u_int32_t *)__a) &= ~0x3;       \
+               }                                                       \
+       }                                                               \
+} while (/*CONSTCOND*/0)
+
 void kloader_sh3_jump(kloader_bootfunc_t *, vaddr_t,
     struct kloader_bootinfo *, struct kloader_page_tag *);
 kloader_bootfunc_t kloader_sh3_boot;
@@ -60,7 +86,7 @@
     struct kloader_bootinfo *info, struct kloader_page_tag *tag)
 {
 
-       SH7709A_CACHE_FLUSH();
+       _SH7709A_CACHE_FLUSH();
 
        __asm__ __volatile__(
                "mov    %0, r4;"
@@ -96,7 +122,7 @@
                        *dst++ = *src++;
        } while ((p = (struct kloader_page_tag *)p->next) != 0);
 
-       SH7709A_CACHE_FLUSH();
+       _SH7709A_CACHE_FLUSH();
 
        /* jump to kernel entry. */
        __asm__ __volatile__(