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powerpc/mm: make ioremap_bot common to all

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Drop multiple definitions of ioremap_bot and make one common to
all subarches.

Only CONFIG_PPC_BOOK3E_64 had a global static init value for
ioremap_bot. Now ioremap_bot is set in early_init_mmu_global().

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/920eebfd9f36f14c79d1755847f5bf7c83703bdd.1566309262.git.christophe.leroy@c-s.fr
This commit is contained in:
Christophe Leroy
2019-08-20 14:07:16 +00:00
committed by Michael Ellerman
parent edfe1a5679
commit 7cd9b317b6
9 changed files with 7 additions and 12 deletions
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2
arch/powerpc/include/asm/book3s/32/pgtable.h
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@@ -201,8 +201,6 @@ int map_kernel_page(unsigned long va, phys_addr_t pa, pgprot_t prot);
#include <linux/sched.h>
#include <linux/threads.h>
extern unsigned long ioremap_bot;
/* Bits to mask out from a PGD to get to the PUD page */
#define PGD_MASKED_BITS 0