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sh: Make most PMB functions static

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There's no need to export the internal PMB functions for allocating,
freeing and modifying PMB entries, etc. This way we can restrict the
interface for PMB.

Also remove the static from pmb_init() so that we have more freedom in
setting up the initial PMB entries and turning on MMU 32bit mode.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Matt Fleming 2009-10-06 21:22:28 +00:00 committed by Paul Mundt
parent b336f124b1
commit 8386aebb9e
3 changed files with 13 additions and 16 deletions
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8
arch/sh/include/asm/mmu.h
View file

@ -64,16 +64,10 @@ struct pmb_entry {
};
/* arch/sh/mm/pmb.c */
int __set_pmb_entry(unsigned long vpn, unsigned long ppn,
unsigned long flags, int *entry);
int set_pmb_entry(struct pmb_entry *pmbe);
void clear_pmb_entry(struct pmb_entry *pmbe);
struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn,
unsigned long flags);
void pmb_free(struct pmb_entry *pmbe);
long pmb_remap(unsigned long virt, unsigned long phys,
unsigned long size, unsigned long flags);
void pmb_unmap(unsigned long addr);
int pmb_init(void);
#endif /* __ASSEMBLY__ */
#endif /* __MMU_H */

4
arch/sh/kernel/setup.c
View file

@ -453,6 +453,10 @@ void __init setup_arch(char **cmdline_p)
paging_init();
#ifdef CONFIG_PMB
pmb_init();
#endif
#ifdef CONFIG_SMP
plat_smp_setup();
#endif

17
arch/sh/mm/pmb.c
View file

@ -115,8 +115,8 @@ static int pmb_alloc_entry(void)
return pos;
}
struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn,
unsigned long flags)
static struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn,
unsigned long flags)
{
struct pmb_entry *pmbe;
int pos;
@ -141,7 +141,7 @@ struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn,
return pmbe;
}
void pmb_free(struct pmb_entry *pmbe)
static void pmb_free(struct pmb_entry *pmbe)
{
spin_lock_irq(&pmb_list_lock);
pmb_list_del(pmbe);
@ -153,8 +153,8 @@ void pmb_free(struct pmb_entry *pmbe)
/*
* Must be in P2 for __set_pmb_entry()
*/
void __set_pmb_entry(unsigned long vpn, unsigned long ppn,
unsigned long flags, int pos)
static void __set_pmb_entry(unsigned long vpn, unsigned long ppn,
unsigned long flags, int pos)
{
ctrl_outl(vpn | PMB_V, mk_pmb_addr(pos));
@ -171,14 +171,14 @@ void __set_pmb_entry(unsigned long vpn, unsigned long ppn,
ctrl_outl(ppn | flags | PMB_V, mk_pmb_data(pos));
}
void __uses_jump_to_uncached set_pmb_entry(struct pmb_entry *pmbe)
static void __uses_jump_to_uncached set_pmb_entry(struct pmb_entry *pmbe)
{
jump_to_uncached();
__set_pmb_entry(pmbe->vpn, pmbe->ppn, pmbe->flags, pmbe->entry);
back_to_cached();
}
void __uses_jump_to_uncached clear_pmb_entry(struct pmb_entry *pmbe)
static void __uses_jump_to_uncached clear_pmb_entry(struct pmb_entry *pmbe)
{
unsigned int entry = pmbe->entry;
unsigned long addr;
@ -327,7 +327,7 @@ static void pmb_cache_ctor(void *pmb)
memset(pmb, 0, sizeof(struct pmb_entry));
}
static int __uses_jump_to_uncached pmb_init(void)
int __uses_jump_to_uncached pmb_init(void)
{
unsigned int nr_entries = ARRAY_SIZE(pmb_init_map);
unsigned int entry, i;
@ -364,7 +364,6 @@ static int __uses_jump_to_uncached pmb_init(void)
return 0;
}
arch_initcall(pmb_init);
static int pmb_seq_show(struct seq_file *file, void *iter)
{