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| author | Paul Mundt <lethal@linux-sh.org> | 2006-11-21 03:09:41 +0100 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2006-12-06 02:45:37 +0100 |
| commit | 52e27782e1c4afa1feca0fdf194d279595e0431c (patch) | |
| tree | 073202ce4920cad4f524d47faac8f9e886546580 /arch | |
| parent | sh: Preliminary support for SH-X2 MMU. (diff) | |
| download | linux-52e27782e1c4afa1feca0fdf194d279595e0431c.tar.xz linux-52e27782e1c4afa1feca0fdf194d279595e0431c.zip | |
sh: p3map_sem sem2mutex conversion.
Simple sem2mutex conversion for the p3map semaphores.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sh/mm/cache-sh4.c | 14 | ||||
| -rw-r--r-- | arch/sh/mm/pg-sh4.c | 23 |
2 files changed, 11 insertions, 26 deletions
diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c index e48cc22724d9..7e62ba071d64 100644 --- a/arch/sh/mm/cache-sh4.c +++ b/arch/sh/mm/cache-sh4.c @@ -11,12 +11,8 @@ */ #include <linux/init.h> #include <linux/mm.h> -#include <asm/addrspace.h> -#include <asm/pgtable.h> -#include <asm/processor.h> -#include <asm/cache.h> -#include <asm/io.h> -#include <asm/pgalloc.h> +#include <linux/io.h> +#include <linux/mutex.h> #include <asm/mmu_context.h> #include <asm/cacheflush.h> @@ -83,9 +79,9 @@ static void __init emit_cache_params(void) */ /* Worst case assumed to be 64k cache, direct-mapped i.e. 4 synonym bits. */ -#define MAX_P3_SEMAPHORES 16 +#define MAX_P3_MUTEXES 16 -struct semaphore p3map_sem[MAX_P3_SEMAPHORES]; +struct mutex p3map_mutex[MAX_P3_MUTEXES]; void __init p3_cache_init(void) { @@ -115,7 +111,7 @@ void __init p3_cache_init(void) panic("%s failed.", __FUNCTION__); for (i = 0; i < cpu_data->dcache.n_aliases; i++) - sema_init(&p3map_sem[i], 1); + mutex_init(&p3map_mutex[i]); } /* diff --git a/arch/sh/mm/pg-sh4.c b/arch/sh/mm/pg-sh4.c index e973ac3b13be..3f98d2a4f936 100644 --- a/arch/sh/mm/pg-sh4.c +++ b/arch/sh/mm/pg-sh4.c @@ -6,22 +6,12 @@ * * Released under the terms of the GNU GPL v2.0. */ -#include <linux/init.h> -#include <linux/mman.h> #include <linux/mm.h> -#include <linux/threads.h> -#include <asm/addrspace.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/processor.h> -#include <asm/cache.h> -#include <asm/io.h> -#include <asm/uaccess.h> -#include <asm/pgalloc.h> +#include <linux/mutex.h> #include <asm/mmu_context.h> #include <asm/cacheflush.h> -extern struct semaphore p3map_sem[]; +extern struct mutex p3map_mutex[]; #define CACHE_ALIAS (cpu_data->dcache.alias_mask) @@ -47,7 +37,7 @@ void clear_user_page(void *to, unsigned long address, struct page *page) unsigned long flags; entry = pfn_pte(phys_addr >> PAGE_SHIFT, PAGE_KERNEL); - down(&p3map_sem[(address & CACHE_ALIAS)>>12]); + mutex_lock(&p3map_mutex[(address & CACHE_ALIAS)>>12]); set_pte(pte, entry); local_irq_save(flags); __flush_tlb_page(get_asid(), p3_addr); @@ -55,7 +45,7 @@ void clear_user_page(void *to, unsigned long address, struct page *page) update_mmu_cache(NULL, p3_addr, entry); __clear_user_page((void *)p3_addr, to); pte_clear(&init_mm, p3_addr, pte); - up(&p3map_sem[(address & CACHE_ALIAS)>>12]); + mutex_unlock(&p3map_mutex[(address & CACHE_ALIAS)>>12]); } } @@ -83,7 +73,7 @@ void copy_user_page(void *to, void *from, unsigned long address, unsigned long flags; entry = pfn_pte(phys_addr >> PAGE_SHIFT, PAGE_KERNEL); - down(&p3map_sem[(address & CACHE_ALIAS)>>12]); + mutex_lock(&p3map_mutex[(address & CACHE_ALIAS)>>12]); set_pte(pte, entry); local_irq_save(flags); __flush_tlb_page(get_asid(), p3_addr); @@ -91,7 +81,7 @@ void copy_user_page(void *to, void *from, unsigned long address, update_mmu_cache(NULL, p3_addr, entry); __copy_user_page((void *)p3_addr, from, to); pte_clear(&init_mm, p3_addr, pte); - up(&p3map_sem[(address & CACHE_ALIAS)>>12]); + mutex_unlock(&p3map_mutex[(address & CACHE_ALIAS)>>12]); } } @@ -114,4 +104,3 @@ inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t } return pte; } - |