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Date: Mon, 29 May 2017 17:31:56 +0200 (CEST)
From: Christophe Leroy <christophe.leroy@....fr>
To: Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Paul Mackerras <paulus@...ba.org>,
Michael Ellerman <mpe@...erman.id.au>,
Scott Wood <oss@...error.net>,
Balbir Singh <bsingharora@...il.com>
Cc: linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH 1/7] powerpc/mm: rename map_page() to map_kernel_page() on
PPC32
Signed-off-by: Christophe Leroy <christophe.leroy@....fr>
---
arch/powerpc/include/asm/book3s/32/pgtable.h | 2 ++
arch/powerpc/include/asm/nohash/32/pgtable.h | 2 ++
arch/powerpc/mm/8xx_mmu.c | 2 +-
arch/powerpc/mm/dma-noncoherent.c | 2 +-
arch/powerpc/mm/mem.c | 4 ++--
arch/powerpc/mm/mmu_decl.h | 1 -
arch/powerpc/mm/pgtable_32.c | 8 ++++----
7 files changed, 12 insertions(+), 9 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h
index 26ed228d4dc6..7fb755880409 100644
--- a/arch/powerpc/include/asm/book3s/32/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/32/pgtable.h
@@ -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); }
diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h
index 5134ade2e850..91314268f04f 100644
--- a/arch/powerpc/include/asm/nohash/32/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/32/pgtable.h
@@ -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 */
diff --git a/arch/powerpc/mm/8xx_mmu.c b/arch/powerpc/mm/8xx_mmu.c
index 6c5025e81236..f4c6472f2fc4 100644
--- a/arch/powerpc/mm/8xx_mmu.c
+++ b/arch/powerpc/mm/8xx_mmu.c
@@ -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 */
diff --git a/arch/powerpc/mm/dma-noncoherent.c b/arch/powerpc/mm/dma-noncoherent.c
index 2dc74e5c6458..382528475433 100644
--- a/arch/powerpc/mm/dma-noncoherent.c
+++ b/arch/powerpc/mm/dma-noncoherent.c
@@ -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;
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index de5a90e1ceaa..8e9bef964dbf 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -305,11 +305,11 @@ 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));
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h
index f988db655e5b..d46128b22150 100644
--- a/arch/powerpc/mm/mmu_decl.h
+++ b/arch/powerpc/mm/mmu_decl.h
@@ -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);
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index a65c0b4c0669..9c23c0965566 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -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);
@@ -387,7 +387,7 @@ 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++;
}
--
2.12.0
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