From: Bob Breuer <breuerr@mc.net>
To: sparclinux@vger.kernel.org
Subject: Re: Current BK kernel error
Date: Wed, 12 Jan 2005 06:30:19 +0000 [thread overview]
Message-ID: <41E4C3FB.8070806@mc.net> (raw)
In-Reply-To: <20050111143605.GC4514@artsapartment.org>
William Lee Irwin III wrote:
>
> Ship me what you've got and I'll test it on sun4c and BTFIXUP-ize it.
>
Ok, how about this patch to start from?
diff -urp linux-2.6.10-bk8-clean/include/asm-sparc/pgtable.h linux-2.6.10-bk8/include/asm-sparc/pgtable.h
--- linux-2.6.10-bk8-clean/include/asm-sparc/pgtable.h 2005-01-12 00:16:39.000000000 -0600
+++ linux-2.6.10-bk8/include/asm-sparc/pgtable.h 2005-01-12 00:15:21.000000000 -0600
@@ -186,10 +186,21 @@ BTFIXUPDEF_CALL(void, pgd_clear, pgd_t *
* The following only work if pte_present() is true.
* Undefined behaviour if not..
*/
+//BITFIXUPDEF_????(pte_readi)
BTFIXUPDEF_HALF(pte_writei)
BTFIXUPDEF_HALF(pte_dirtyi)
BTFIXUPDEF_HALF(pte_youngi)
+extern int pte_read(pte_t pte) __attribute_const__;
+extern __inline__ int pte_read(pte_t pte)
+{
+#if 0 // SUN4/SUN4C
+ return pte_val(pte) & _SUN4C_PAGE_READ;
+#else // SUN4M
+ return !(pte_val(pte) & SRMMU_NOREAD);
+#endif
+}
+
extern int pte_write(pte_t pte) __attribute_const__;
extern __inline__ int pte_write(pte_t pte)
{
diff -urp linux-2.6.10-bk8-clean/include/asm-sparc/pgtsrmmu.h linux-2.6.10-bk8/include/asm-sparc/pgtsrmmu.h
--- linux-2.6.10-bk8-clean/include/asm-sparc/pgtsrmmu.h 2004-10-18 16:53:46.000000000 -0500
+++ linux-2.6.10-bk8/include/asm-sparc/pgtsrmmu.h 2005-01-12 00:09:44.000000000 -0600
@@ -73,6 +73,7 @@
#define SRMMU_CACHE 0x80
#define SRMMU_DIRTY 0x40
#define SRMMU_REF 0x20
+#define SRMMU_NOREAD 0x10
#define SRMMU_EXEC 0x08
#define SRMMU_WRITE 0x04
#define SRMMU_VALID 0x02 /* SRMMU_ET_PTE */
next prev parent reply other threads:[~2005-01-12 6:30 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-11 14:36 Current BK kernel error Art Haas
2005-01-11 18:49 ` William Lee Irwin III
2005-01-12 3:56 ` Bob Breuer
2005-01-12 5:38 ` William Lee Irwin III
2005-01-12 6:24 ` William Lee Irwin III
2005-01-12 6:30 ` Bob Breuer [this message]
2005-01-21 23:05 ` Art Haas
2005-01-21 23:09 ` William Lee Irwin III
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