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powerpc/mm: split out early ioremap path.

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ioremap does things differently depending on whether
SLAB is available or not at different levels.

Try to separate the early path from the beginning.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/3acd2dbe04b04f111475e7a59f2b6f2ab9b95ab6.1566309263.git.christophe.leroy@c-s.fr
This commit is contained in:
Christophe Leroy
2019-08-20 14:07:20 +00:00
committed by Michael Ellerman
parent 4a45b7460c
commit 163918fc57
4 changed files with 35 additions and 28 deletions
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3
arch/powerpc/include/asm/io.h
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@@ -722,7 +722,8 @@ void __iomem *ioremap_coherent(phys_addr_t address, unsigned long size);
extern void iounmap(volatile void __iomem *addr);
int ioremap_range(unsigned long ea, phys_addr_t pa, unsigned long size, pgprot_t prot);
int early_ioremap_range(unsigned long ea, phys_addr_t pa,
unsigned long size, pgprot_t prot);
void __iomem *do_ioremap(phys_addr_t pa, phys_addr_t offset, unsigned long size,
pgprot_t prot, void *caller);