Commit 4634c375 authored by Christophe Leroy's avatar Christophe Leroy Committed by Michael Ellerman
Browse files

powerpc/mm: move common 32/64 bits ioremap functions into ioremap.c 



ioremap(), ioremap_wc() and ioremap_coherent() are now identical on
PPC32 and PPC64 as iowa_is_active() will always return false on
PPC32. Move them into a new common location called ioremap.c

Signed-off-by: default avatarChristophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/6223803ce024d6ab4dfaa919f44098aed5b4bc33.1566309262.git.christophe.leroy@c-s.fr
parent 14b4d976

arch/powerpc/mm/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -7,7 +7,7 @@ ccflags-$(CONFIG_PPC64) := $(NO_MINIMAL_TOC) 


obj-y				:= fault.o mem.o pgtable.o mmap.o \

				   init_$(BITS).o pgtable_$(BITS).o \

				   pgtable-frag.o \

				   pgtable-frag.o ioremap.o \

				   init-common.o mmu_context.o drmem.o

obj-$(CONFIG_PPC_MMU_NOHASH)	+= nohash/

obj-$(CONFIG_PPC_BOOK3S_32)	+= book3s32/

arch/powerpc/mm/ioremap.c

0 → 100644
+36 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-or-later



#include <linux/io.h>

#include <asm/io-workarounds.h>



void __iomem *ioremap(phys_addr_t addr, unsigned long size)

{

	pgprot_t prot = pgprot_noncached(PAGE_KERNEL);

	void *caller = __builtin_return_address(0);



	if (iowa_is_active())

		return iowa_ioremap(addr, size, prot, caller);

	return __ioremap_caller(addr, size, prot, caller);

}

EXPORT_SYMBOL(ioremap);



void __iomem *ioremap_wc(phys_addr_t addr, unsigned long size)

{

	pgprot_t prot = pgprot_noncached_wc(PAGE_KERNEL);

	void *caller = __builtin_return_address(0);



	if (iowa_is_active())

		return iowa_ioremap(addr, size, prot, caller);

	return __ioremap_caller(addr, size, prot, caller);

}

EXPORT_SYMBOL(ioremap_wc);



void __iomem *ioremap_coherent(phys_addr_t addr, unsigned long size)

{

	pgprot_t prot = pgprot_cached(PAGE_KERNEL);

	void *caller = __builtin_return_address(0);



	if (iowa_is_active())

		return iowa_ioremap(addr, size, prot, caller);

	return __ioremap_caller(addr, size, prot, caller);

}

arch/powerpc/mm/pgtable_32.c

+0 −27
Original line number Diff line number Diff line
@@ -38,24 +38,6 @@ EXPORT_SYMBOL(ioremap_bot); /* aka VMALLOC_END */ 


extern char etext[], _stext[], _sinittext[], _einittext[];



void __iomem *

ioremap(phys_addr_t addr, unsigned long size)

{

	pgprot_t prot = pgprot_noncached(PAGE_KERNEL);



	return __ioremap_caller(addr, size, prot, __builtin_return_address(0));

}

EXPORT_SYMBOL(ioremap);



void __iomem *

ioremap_wc(phys_addr_t addr, unsigned long size)

{

	pgprot_t prot = pgprot_noncached_wc(PAGE_KERNEL);



	return __ioremap_caller(addr, size, prot, __builtin_return_address(0));

}

EXPORT_SYMBOL(ioremap_wc);



void __iomem *

ioremap_wt(phys_addr_t addr, unsigned long size)

{
@@ -65,15 +47,6 @@ ioremap_wt(phys_addr_t addr, unsigned long size) 
}

EXPORT_SYMBOL(ioremap_wt);



void __iomem *

ioremap_coherent(phys_addr_t addr, unsigned long size)

{

	pgprot_t prot = pgprot_cached(PAGE_KERNEL);



	return __ioremap_caller(addr, size, prot, __builtin_return_address(0));

}

EXPORT_SYMBOL(ioremap_coherent);



void __iomem *

ioremap_prot(phys_addr_t addr, unsigned long size, unsigned long flags)

{

arch/powerpc/mm/pgtable_64.c

+0 −33
Original line number Diff line number Diff line
@@ -35,7 +35,6 @@ 
#include <asm/page.h>

#include <asm/prom.h>

#include <asm/io.h>

#include <asm/io-workarounds.h>

#include <asm/mmu_context.h>

#include <asm/pgtable.h>

#include <asm/mmu.h>
@@ -204,36 +203,6 @@ void __iomem * __ioremap_caller(phys_addr_t addr, unsigned long size, 
	return ret;

}



void __iomem * ioremap(phys_addr_t addr, unsigned long size)

{

	pgprot_t prot = pgprot_noncached(PAGE_KERNEL);

	void *caller = __builtin_return_address(0);



	if (iowa_is_active())

		return iowa_ioremap(addr, size, prot, caller);

	return __ioremap_caller(addr, size, prot, caller);

}



void __iomem * ioremap_wc(phys_addr_t addr, unsigned long size)

{

	pgprot_t prot = pgprot_noncached_wc(PAGE_KERNEL);

	void *caller = __builtin_return_address(0);



	if (iowa_is_active())

		return iowa_ioremap(addr, size, prot, caller);

	return __ioremap_caller(addr, size, prot, caller);

}



void __iomem *ioremap_coherent(phys_addr_t addr, unsigned long size)

{

	pgprot_t prot = pgprot_cached(PAGE_KERNEL);

	void *caller = __builtin_return_address(0);



	if (iowa_is_active())

		return iowa_ioremap(addr, size, prot, caller);

	return __ioremap_caller(addr, size, prot, caller);

}



void __iomem * ioremap_prot(phys_addr_t addr, unsigned long size,

			     unsigned long flags)

{
@@ -278,8 +247,6 @@ void iounmap(volatile void __iomem *token) 
	vunmap(addr);

}



EXPORT_SYMBOL(ioremap);

EXPORT_SYMBOL(ioremap_wc);

EXPORT_SYMBOL(ioremap_prot);

EXPORT_SYMBOL(__ioremap_at);

EXPORT_SYMBOL(iounmap);

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