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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-16 15:34:44 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-16 15:34:44 -0800 |
| commit | 5b3fcfed35735af507be36a4c3f3bbeb9bc7bbf6 (patch) | |
| tree | f956ebeec64d7c4249a8886585dc8416e51d72a3 /arch/arm/kernel/head.S | |
| parent | a12587b00388d1694933252e97abca237bc3a6b8 (diff) | |
| parent | a61c2332f8e1939cd4984b63cab641b2366eb428 (diff) | |
Merge branch 'fixes' of git://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-arm
* 'fixes' of git://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-arm:
ARM: sa11x0: assabet: fix build warning
ARM: Add arm_memblock_steal() to allocate memory away from the kernel
ARM: 7275/1: LPAE: Check the CPU support for the long descriptor format
ARM: 7274/1: NUC900: Rename nuc900-audio platform device to nuc900-ac97
ARM: 7272/1: S3C24XX: Fix build error for missing <mach/system-reset.h>
ARM: 7271/1: Fix typo in conversion of ARCH_NR_GPIOS to Kconfig
Diffstat (limited to 'arch/arm/kernel/head.S')
| -rw-r--r-- | arch/arm/kernel/head.S | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 14e277d2ff9..6d579114406 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -99,6 +99,14 @@ ENTRY(stext) THUMB( it eq ) @ force fixup-able long branch encoding beq __error_p @ yes, error 'p' +#ifdef CONFIG_ARM_LPAE + mrc p15, 0, r3, c0, c1, 4 @ read ID_MMFR0 + and r3, r3, #0xf @ extract VMSA support + cmp r3, #5 @ long-descriptor translation table format? + THUMB( it lo ) @ force fixup-able long branch encoding + blo __error_p @ only classic page table format +#endif + #ifndef CONFIG_XIP_KERNEL adr r3, 2f ldmia r3, {r4, r8} |