From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
Cc: Linux Kernel Development <linux-kernel@vger.kernel.org>,
Geert Uytterhoeven <geert@linux-m68k.org>
Subject: [PATCH 124] M68k cache mode
Date: Sun, 7 Dec 2003 21:49:36 +0100 [thread overview]
Message-ID: <200312072049.hB7Knag8000672@callisto.of.borg> (raw)
M68k: Use a constant m68k_supervisor_cachemode only if we know it's safe,
otherwise use the value from head.S (from Roman Zippel)
--- linux-2.4.23/include/asm-m68k/motorola_pgtable.h 26 Mar 2003 23:05:38 -0000 1.1.1.1.2.2
+++ linux-m68k-2.4.23/include/asm-m68k/motorola_pgtable.h 16 Oct 2003 20:56:45 -0000
@@ -40,10 +40,14 @@
* processors >= '040. It is used in pte_mkcache(), and the variable is
* defined and initialized in head.S */
-#if defined(CONFIG_060_WRITETHROUGH)
-extern int m68k_supervisor_cachemode;
-#else
+#if defined(CPU_M68060_ONLY) && defined(CONFIG_060_WRITETHROUGH)
+#define m68k_supervisor_cachemode _PAGE_CACHE040W
+#elif defined(CPU_M68040_OR_M68060_ONLY)
#define m68k_supervisor_cachemode _PAGE_CACHE040
+#elif defined(CPU_M68020_OR_M68030_ONLY)
+#define m68k_supervisor_cachemode 0
+#else
+extern int m68k_supervisor_cachemode;
#endif
#if defined(CPU_M68040_OR_M68060_ONLY)
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
reply other threads:[~2003-12-07 20:55 UTC|newest]
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