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[SPARC64]: Move DCACHE_ALIASING_POSSIBLE define to asm/page.h

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This showed that arch/sparc64/kernel/ptrace.c was not getting
the define properly, and thus the code protected by this ifdef
was never actually compiled before.  So fix that too.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2005-09-19 20:11:57 -07:00
parent e0487992ce
commit 6a9b490d5f
5 changed files with 13 additions and 10 deletions
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7
arch/sparc64/kernel/ptrace.c
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@ -30,6 +30,7 @@
#include <asm/psrcompat.h> #include <asm/psrcompat.h>
#include <asm/visasm.h> #include <asm/visasm.h>
#include <asm/spitfire.h> #include <asm/spitfire.h>
#include <asm/page.h>
/* Returning from ptrace is a bit tricky because the syscall return /* Returning from ptrace is a bit tricky because the syscall return
* low level code assumes any value returned which is negative and * low level code assumes any value returned which is negative and
@ -128,20 +129,20 @@ void flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
* is mapped to in the user's address space, we can skip the * is mapped to in the user's address space, we can skip the
* D-cache flush. * D-cache flush.
*/ */
if ((uaddr ^ kaddr) & (1UL << 13)) { if ((uaddr ^ (unsigned long) kaddr) & (1UL << 13)) {
unsigned long start = __pa(kaddr); unsigned long start = __pa(kaddr);
unsigned long end = start + len; unsigned long end = start + len;
if (tlb_type == spitfire) { if (tlb_type == spitfire) {
for (; start < end; start += 32) for (; start < end; start += 32)
spitfire_put_dcache_tag(va & 0x3fe0, 0x0); spitfire_put_dcache_tag(start & 0x3fe0, 0x0);
} else { } else {
for (; start < end; start += 32) for (; start < end; start += 32)
__asm__ __volatile__( __asm__ __volatile__(
"stxa %%g0, [%0] %1\n\t" "stxa %%g0, [%0] %1\n\t"
"membar #Sync" "membar #Sync"
: /* no outputs */ : /* no outputs */
: "r" (va), : "r" (start),
"i" (ASI_DCACHE_INVALIDATE)); "i" (ASI_DCACHE_INVALIDATE));
} }
} }

7
include/asm-sparc64/cacheflush.h
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@ -4,13 +4,6 @@
#include <linux/config.h> #include <linux/config.h>
#include <asm/page.h> #include <asm/page.h>
/* Flushing for D-cache alias handling is only needed if
* the page size is smaller than 16K.
*/
#if PAGE_SHIFT < 14
#define DCACHE_ALIASING_POSSIBLE
#endif
#ifndef __ASSEMBLY__ #ifndef __ASSEMBLY__
#include <linux/mm.h> #include <linux/mm.h>

1
include/asm-sparc64/ide.h
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@ -15,6 +15,7 @@
#include <asm/io.h> #include <asm/io.h>
#include <asm/spitfire.h> #include <asm/spitfire.h>
#include <asm/cacheflush.h> #include <asm/cacheflush.h>
#include <asm/page.h>
#ifndef MAX_HWIFS #ifndef MAX_HWIFS
# ifdef CONFIG_BLK_DEV_IDEPCI # ifdef CONFIG_BLK_DEV_IDEPCI

7
include/asm-sparc64/page.h
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@ -21,6 +21,13 @@
#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1)) #define PAGE_MASK (~(PAGE_SIZE-1))
/* Flushing for D-cache alias handling is only needed if
* the page size is smaller than 16K.
*/
#if PAGE_SHIFT < 14
#define DCACHE_ALIASING_POSSIBLE
#endif
#ifdef __KERNEL__ #ifdef __KERNEL__
#ifndef __ASSEMBLY__ #ifndef __ASSEMBLY__

1
include/asm-sparc64/pgalloc.h
View File

@ -10,6 +10,7 @@
#include <asm/spitfire.h> #include <asm/spitfire.h>
#include <asm/cpudata.h> #include <asm/cpudata.h>
#include <asm/cacheflush.h> #include <asm/cacheflush.h>
#include <asm/page.h>
/* Page table allocation/freeing. */ /* Page table allocation/freeing. */
#ifdef CONFIG_SMP #ifdef CONFIG_SMP