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[ARM] Cleanup arch/arm/mm a little

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Move top_pmd into arch/arm/mm/mm.h - nothing outside arch/arm/mm
references it.

Move the repeated definition of TOP_PTE into mm/mm.h, as well as
a few function prototypes.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2006-08-21 17:06:38 +01:00 committed by Russell King
parent e478bec0ba
commit 1b2e2b73b4
8 changed files with 36 additions and 36 deletions
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4
arch/arm/mm/copypage-v4mc.c
View File

@ -20,6 +20,8 @@
#include <asm/pgtable.h>
#include <asm/tlbflush.h>
#include "mm.h"
/*
* 0xffff8000 to 0xffffffff is reserved for any ARM architecture
* specific hacks for copying pages efficiently.
@ -27,8 +29,6 @@
#define minicache_pgprot __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | \
L_PTE_CACHEABLE)
#define TOP_PTE(x) pte_offset_kernel(top_pmd, x)
static DEFINE_SPINLOCK(minicache_lock);
/*

4
arch/arm/mm/copypage-v6.c
View File

@ -17,6 +17,8 @@
#include <asm/tlbflush.h>
#include <asm/cacheflush.h>
#include "mm.h"
#if SHMLBA > 16384
#error FIX ME
#endif
@ -24,8 +26,6 @@
#define from_address (0xffff8000)
#define to_address (0xffffc000)
#define TOP_PTE(x) pte_offset_kernel(top_pmd, x)
static DEFINE_SPINLOCK(v6_lock);
/*

4
arch/arm/mm/copypage-xscale.c
View File

@ -20,6 +20,8 @@
#include <asm/pgtable.h>
#include <asm/tlbflush.h>
#include "mm.h"
/*
* 0xffff8000 to 0xffffffff is reserved for any ARM architecture
* specific hacks for copying pages efficiently.
@ -29,8 +31,6 @@
#define minicache_pgprot __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | \
L_PTE_CACHEABLE)
#define TOP_PTE(x) pte_offset_kernel(top_pmd, x)
static DEFINE_SPINLOCK(minicache_lock);
/*

4
arch/arm/mm/flush.c
View File

@ -15,12 +15,12 @@
#include <asm/system.h>
#include <asm/tlbflush.h>
#include "mm.h"
#ifdef CONFIG_CPU_CACHE_VIPT
#define ALIAS_FLUSH_START 0xffff4000
#define TOP_PTE(x) pte_offset_kernel(top_pmd, x)
static void flush_pfn_alias(unsigned long pfn, unsigned long vaddr)
{
unsigned long to = ALIAS_FLUSH_START + (CACHE_COLOUR(vaddr) << PAGE_SHIFT);

20
arch/arm/mm/init.c
View File

@ -25,6 +25,8 @@
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include "mm.h"
DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
@ -44,6 +46,11 @@ static struct meminfo meminfo __initdata = { 0, };
*/
struct page *empty_zero_page;
/*
* The pmd table for the upper-most set of pages.
*/
pmd_t *top_pmd;
void show_mem(void)
{
int free = 0, total = 0, reserved = 0;
@ -83,16 +90,6 @@ void show_mem(void)
printk("%d pages swap cached\n", cached);
}
static inline pmd_t *pmd_off(pgd_t *pgd, unsigned long virt)
{
return pmd_offset(pgd, virt);
}
static inline pmd_t *pmd_off_k(unsigned long virt)
{
return pmd_off(pgd_offset_k(virt), virt);
}
#define for_each_nodebank(iter,mi,no) \
for (iter = 0; iter < mi->nr_banks; iter++) \
if (mi->bank[iter].node == no)
@ -229,9 +226,6 @@ static __init void reserve_node_zero(pg_data_t *pgdat)
reserve_bootmem_node(pgdat, PHYS_OFFSET, res_size);
}
void __init build_mem_type_table(void);
void __init create_mapping(struct map_desc *md);
static unsigned long __init
bootmem_init_node(int node, int initrd_node, struct meminfo *mi)
{

14
arch/arm/mm/mm-armv.c
View File

@ -23,6 +23,8 @@
#include <asm/mach/map.h>
#include "mm.h"
#define CPOLICY_UNCACHED 0
#define CPOLICY_BUFFERED 1
#define CPOLICY_WRITETHROUGH 2
@ -35,8 +37,6 @@ pgprot_t pgprot_kernel;
EXPORT_SYMBOL(pgprot_kernel);
pmd_t *top_pmd;
struct cachepolicy {
const char policy[16];
unsigned int cr_mask;
@ -142,16 +142,6 @@ __setup("noalign", noalign_setup);
#define FIRST_KERNEL_PGD_NR (FIRST_USER_PGD_NR + USER_PTRS_PER_PGD)
static inline pmd_t *pmd_off(pgd_t *pgd, unsigned long virt)
{
return pmd_offset(pgd, virt);
}
static inline pmd_t *pmd_off_k(unsigned long virt)
{
return pmd_off(pgd_offset_k(virt), virt);
}
/*
* need to get a 16k page for level 1
*/

19
arch/arm/mm/mm.h Normal file
View File

@ -0,0 +1,19 @@
/* the upper-most page table pointer */
extern pmd_t *top_pmd;
#define TOP_PTE(x) pte_offset_kernel(top_pmd, x)
static inline pmd_t *pmd_off(pgd_t *pgd, unsigned long virt)
{
return pmd_offset(pgd, virt);
}
static inline pmd_t *pmd_off_k(unsigned long virt)
{
return pmd_off(pgd_offset_k(virt), virt);
}
struct map_desc;
void __init build_mem_type_table(void);
void __init create_mapping(struct map_desc *md);

3
include/asm-arm/page.h
View File

@ -174,9 +174,6 @@ typedef unsigned long pgprot_t;
#endif /* STRICT_MM_TYPECHECKS */
/* the upper-most page table pointer */
extern pmd_t *top_pmd;
#endif /* CONFIG_MMU */
#include <asm/memory.h>