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[ARM] 4112/1: Only ioremap to supersections if DOMAIN_IO is zero

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Supersections do not have a field for the domain and it is always
0. This patch prevents the creation of supersections during ioremap
when DOMAIN_IO is not zero (i.e. !defined(CONFIG_IO_36)).

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Catalin Marinas
2007-01-25 14:16:47 +01:00
committed by Russell King
parent 7baced8a59
commit 412489af76
1 changed files with 2 additions and 1 deletions
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3
arch/arm/mm/ioremap.c
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@@ -300,7 +300,8 @@ __ioremap_pfn(unsigned long pfn, unsigned long offset, size_t size,
addr = (unsigned long)area->addr; addr = (unsigned long)area->addr;
#ifndef CONFIG_SMP #ifndef CONFIG_SMP
if ((((cpu_architecture() >= CPU_ARCH_ARMv6) && (get_cr() & CR_XP)) || if (DOMAIN_IO == 0 &&
(((cpu_architecture() >= CPU_ARCH_ARMv6) && (get_cr() & CR_XP)) ||
cpu_is_xsc3()) && cpu_is_xsc3()) &&
!((__pfn_to_phys(pfn) | size | addr) & ~SUPERSECTION_MASK)) { !((__pfn_to_phys(pfn) | size | addr) & ~SUPERSECTION_MASK)) {
area->flags |= VM_ARM_SECTION_MAPPING; area->flags |= VM_ARM_SECTION_MAPPING;