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powerpc/mm: Rename map_page() to map_kernel_page() on 32-bit 

These two functions implement the same semantics, so unify their naming so we
can share code that calls them. The longer name is more descriptive so use it.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christophe Leroy 2017-05-29 17:31:56 +02:00 committed by Michael Ellerman
parent d2485644c7
commit 4386c096c2
7 changed files with 12 additions and 9 deletions
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2
arch/powerpc/include/asm/book3s/32/pgtable.h
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@ -297,6 +297,8 @@ static inline void __ptep_set_access_flags(struct mm_struct *mm,
extern int get_pteptr(struct mm_struct *mm, unsigned long addr, pte_t **ptep,
pmd_t **pmdp);
int map_kernel_page(unsigned long va, phys_addr_t pa, int flags);
/* Generic accessors to PTE bits */
static inline int pte_write(pte_t pte) { return !!(pte_val(pte) & _PAGE_RW);}
static inline int pte_dirty(pte_t pte) { return !!(pte_val(pte) & _PAGE_DIRTY); }

2
arch/powerpc/include/asm/nohash/32/pgtable.h
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@ -340,6 +340,8 @@ static inline void __ptep_set_access_flags(struct mm_struct *mm,
extern int get_pteptr(struct mm_struct *mm, unsigned long addr, pte_t **ptep,
pmd_t **pmdp);
int map_kernel_page(unsigned long va, phys_addr_t pa, int flags);
#endif /* !__ASSEMBLY__ */
#endif /* __ASM_POWERPC_NOHASH_32_PGTABLE_H */

2
arch/powerpc/mm/8xx_mmu.c
View File

@ -88,7 +88,7 @@ static void mmu_mapin_immr(void)
int offset;
for (offset = 0; offset < IMMR_SIZE; offset += PAGE_SIZE)
map_page(v + offset, p + offset, f);
map_kernel_page(v + offset, p + offset, f);
}
/* Address of instructions to patch */

2
arch/powerpc/mm/dma-noncoherent.c
View File

@ -227,7 +227,7 @@ __dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *handle, gfp_t
do {
SetPageReserved(page);
map_page(vaddr, page_to_phys(page),
map_kernel_page(vaddr, page_to_phys(page),
pgprot_val(pgprot_noncached(PAGE_KERNEL)));
page++;
vaddr += PAGE_SIZE;

4
arch/powerpc/mm/mem.c
View File

@ -313,11 +313,11 @@ void __init paging_init(void)
unsigned long end = __fix_to_virt(FIX_HOLE);
for (; v < end; v += PAGE_SIZE)
map_page(v, 0, 0); /* XXX gross */
map_kernel_page(v, 0, 0); /* XXX gross */
#endif
#ifdef CONFIG_HIGHMEM
map_page(PKMAP_BASE, 0, 0); /* XXX gross */
map_kernel_page(PKMAP_BASE, 0, 0); /* XXX gross */
pkmap_page_table = virt_to_kpte(PKMAP_BASE);
kmap_pte = virt_to_kpte(__fix_to_virt(FIX_KMAP_BEGIN));

1
arch/powerpc/mm/mmu_decl.h
View File

@ -94,7 +94,6 @@ extern void _tlbia(void);
#ifdef CONFIG_PPC32
extern void mapin_ram(void);
extern int map_page(unsigned long va, phys_addr_t pa, int flags);
extern void setbat(int index, unsigned long virt, phys_addr_t phys,
unsigned int size, pgprot_t prot);

8
arch/powerpc/mm/pgtable_32.c
View File

@ -189,7 +189,7 @@ __ioremap_caller(phys_addr_t addr, unsigned long size, unsigned long flags,
err = 0;
for (i = 0; i < size && err == 0; i += PAGE_SIZE)
err = map_page(v+i, p+i, flags);
err = map_kernel_page(v+i, p+i, flags);
if (err) {
if (slab_is_available())
vunmap((void *)v);
@ -215,7 +215,7 @@ void iounmap(volatile void __iomem *addr)
}
EXPORT_SYMBOL(iounmap);
int map_page(unsigned long va, phys_addr_t pa, int flags)
int map_kernel_page(unsigned long va, phys_addr_t pa, int flags)
{
pmd_t *pd;
pte_t *pg;
@ -255,7 +255,7 @@ void __init __mapin_ram_chunk(unsigned long offset, unsigned long top)
ktext = ((char *)v >= _stext && (char *)v < etext) ||
((char *)v >= _sinittext && (char *)v < _einittext);
f = ktext ? pgprot_val(PAGE_KERNEL_TEXT) : pgprot_val(PAGE_KERNEL);
map_page(v, p, f);
map_kernel_page(v, p, f);
#ifdef CONFIG_PPC_STD_MMU_32
if (ktext)
hash_preload(&init_mm, v, 0, 0x300);
@ -387,6 +387,6 @@ void __set_fixmap (enum fixed_addresses idx, phys_addr_t phys, pgprot_t flags)
return;
}
map_page(address, phys, pgprot_val(flags));
map_kernel_page(address, phys, pgprot_val(flags));
fixmaps++;
}