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authorLinus Torvalds <torvalds@linux-foundation.org>2012-09-13 09:05:22 +0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-09-13 09:05:22 +0800
commit8507876aaada8a2cf68ebccdf1d056465dd1fc11 (patch)
treeae8a028afcf5131dcf99d2fb31564524f05507e4 /arch/arm/mm/mm.h
parent22b4e63ebe062e2e3d4a3a2b468e47ca9575d598 (diff)
parentbeafa0de3d3e0d0ece7638cded879815f359f1cb (diff)
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Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King: "It's been a while... so there's a little more here than normal. Mostly updates from Will for the breakpoint stuff, and plugging a few holes in the user access functions which crept in when domain support was disabled for ARMv7 CPUs." * 'fixes' of git://git.linaro.org/people/rmk/linux-arm: ARM: 7529/1: delay: set loops_per_jiffy when moving to timer-based loop ARM: 7528/1: uaccess: annotate [__]{get,put}_user functions with might_fault() ARM: 7527/1: uaccess: explicitly check __user pointer when !CPU_USE_DOMAINS ARM: 7526/1: traps: send SIGILL if get_user fails on undef handling path ARM: 7521/1: Fix semihosting Kconfig text ARM: 7513/1: Make sure dtc is built before running it ARM: 7512/1: Fix XIP build due to PHYS_OFFSET definition moving ARM: 7499/1: mm: Fix vmalloc overlap check for !HIGHMEM ARM: 7503/1: mm: only flush both pmd entries for classic MMU ARM: 7502/1: contextidr: avoid using bfi instruction during notifier ARM: 7501/1: decompressor: reset ttbcr for VMSA ARMv7 cores ARM: 7497/1: hw_breakpoint: allow single-byte watchpoints on all addresses ARM: 7496/1: hw_breakpoint: don't rely on dfsr to show watchpoint access type ARM: Fix ioremap() of address zero
Diffstat (limited to 'arch/arm/mm/mm.h')
-rw-r--r--arch/arm/mm/mm.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mm/mm.h b/arch/arm/mm/mm.h
index 6776160618e..a8ee92da354 100644
--- a/arch/arm/mm/mm.h
+++ b/arch/arm/mm/mm.h
@@ -55,6 +55,9 @@ extern void __flush_dcache_page(struct address_space *mapping, struct page *page
/* permanent static mappings from iotable_init() */
#define VM_ARM_STATIC_MAPPING 0x40000000
+/* empty mapping */
+#define VM_ARM_EMPTY_MAPPING 0x20000000
+
/* mapping type (attributes) for permanent static mappings */
#define VM_ARM_MTYPE(mt) ((mt) << 20)
#define VM_ARM_MTYPE_MASK (0x1f << 20)