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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-10-28 01:43:41 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-10-30 23:20:26 +0100 |
| commit | 2098990e7c558c175b96213d41058983e00a7919 (patch) | |
| tree | 361449d9c852d07544b16dd0daec5a72541e8bda /arch/arm/kernel/head.S | |
| parent | ARM: fix misplaced arch_virt_to_idmap() (diff) | |
| parent | ARM: cci driver need big endian fixes in asm code (diff) | |
| download | linux-2098990e7c558c175b96213d41058983e00a7919.tar.xz linux-2098990e7c558c175b96213d41058983e00a7919.zip | |
Merge branch 'baserock/bjdooks/312-rc4/be/core-v3' of git://git.baserock.org/delta/linux into devel-stable
Conflicts:
arch/arm/kernel/head.S
This series has been well tested and it would be great to get this
merged now.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/head.S')
| -rw-r--r-- | arch/arm/kernel/head.S | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 32402ba6710a..e46330f4506a 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -77,6 +77,7 @@ __HEAD ENTRY(stext) + ARM_BE8(setend be ) @ ensure we are in BE8 mode THUMB( adr r9, BSYM(1f) ) @ Kernel is always entered in ARM. THUMB( bx r9 ) @ If this is a Thumb-2 kernel, @@ -352,6 +353,9 @@ ENTRY(secondary_startup) * the processor type - there is no need to check the machine type * as it has already been validated by the primary processor. */ + + ARM_BE8(setend be) @ ensure we are in BE8 mode + #ifdef CONFIG_ARM_VIRT_EXT bl __hyp_stub_install_secondary #endif @@ -602,15 +606,20 @@ __fixup_a_pv_table: b 2f 1: add r7, r3 ldrh ip, [r7, #2] +ARM_BE8(rev16 ip, ip) tst ip, #0x4000 and ip, #0x8f00 orrne ip, r6 @ mask in offset bits 31-24 orreq ip, r0 @ mask in offset bits 7-0 +ARM_BE8(rev16 ip, ip) strh ip, [r7, #2] - ldrheq ip, [r7] - biceq ip, #0x20 - orreq ip, ip, r0, lsr #16 - strheq ip, [r7] + bne 2f + ldrh ip, [r7] +ARM_BE8(rev16 ip, ip) + bic ip, #0x20 + orr ip, ip, r0, lsr #16 +ARM_BE8(rev16 ip, ip) + strh ip, [r7] 2: cmp r4, r5 ldrcc r7, [r4], #4 @ use branch for delay slot bcc 1b @@ -619,11 +628,20 @@ __fixup_a_pv_table: moveq r0, #0x400000 @ set bit 22, mov to mvn instruction b 2f 1: ldr ip, [r7, r3] +#ifdef CONFIG_CPU_ENDIAN_BE8 + @ in BE8, we load data in BE, but instructions still in LE + bic ip, ip, #0xff000000 + 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 +#else bic ip, ip, #0x000000ff tst ip, #0xf00 @ check the rotation field orrne ip, ip, r6 @ mask in offset bits 31-24 biceq ip, ip, #0x400000 @ clear bit 22 orreq ip, ip, r0 @ mask in offset bits 7-0 +#endif str ip, [r7, r3] 2: cmp r4, r5 ldrcc r7, [r4], #4 @ use branch for delay slot |