diff options
| author | Victor Kamensky <victor.kamensky@linaro.org> | 2013-11-07 08:42:42 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-11-14 12:13:09 +0100 |
| commit | d9a790df8e984b143e71ca429316064adaecf65c (patch) | |
| tree | 67c2649eb8230cc4b1b064e64fb5701554db508a /arch/arm | |
| parent | ARM: 7882/1: mm: fix __phys_to_virt to work with 64 bit phys_addr_t in BE case (diff) | |
| download | linux-d9a790df8e984b143e71ca429316064adaecf65c.tar.xz linux-d9a790df8e984b143e71ca429316064adaecf65c.zip | |
ARM: 7883/1: fix mov to mvn conversion in case of 64 bit phys_addr_t and BE
Fix patching code to convert mov instruction into mvn instruction
in case of CONFIG_ARCH_PHYS_ADDR_T_64BIT and CONFIG_ARM_PATCH_PHYS_VIRT.
In BE case store into r0 proper bits so byte swapped instruction
could be modified correctly.
Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Reviewed-by: R Sricharan <r.sricharan@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/kernel/head.S | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index cd788d5b6682..11d59b32fb8d 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -645,7 +645,11 @@ ARM_BE8(rev16 ip, ip) bcc 1b bx lr #else +#ifdef CONFIG_CPU_ENDIAN_BE8 + moveq r0, #0x00004000 @ set bit 22, mov to mvn instruction +#else moveq r0, #0x400000 @ set bit 22, mov to mvn instruction +#endif b 2f 1: ldr ip, [r7, r3] #ifdef CONFIG_CPU_ENDIAN_BE8 @@ -654,7 +658,7 @@ ARM_BE8(rev16 ip, ip) tst ip, #0x000f0000 @ check the rotation field orrne ip, ip, r6, lsl #24 @ mask in offset bits 31-24 biceq ip, ip, #0x00004000 @ clear bit 22 - orreq ip, ip, r0, lsl #24 @ mask in offset bits 7-0 + orreq ip, ip, r0 @ mask in offset bits 7-0 #else bic ip, ip, #0x000000ff tst ip, #0xf00 @ check the rotation field |