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authorCatalin Marinas <catalin.marinas@arm.com>2009-05-30 09:00:18 -0400
committerCatalin Marinas <catalin.marinas@arm.com>2009-05-30 09:00:18 -0400
commit26584853a44c58f3d6ac7360d697a2ddcd1a3efa (patch)
treea47156d781c6207d316746a056a81ca82b90d452 /arch/arm/kernel/process.c
parentee8c9571191e588ede9a220ded807e33c4897d91 (diff)
Add core support for ARMv6/v7 big-endian
Starting with ARMv6, the CPUs support the BE-8 variant of big-endian (byte-invariant). This patch adds the core support: - setting of the BE-8 mode via the CPSR.E register for both kernel and user threads - big-endian page table walking - REV used to rotate instructions read from memory during fault processing as they are still little-endian format - Kconfig and Makefile support for BE-8. The --be8 option must be passed to the final linking stage to convert the instructions to little-endian Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm/kernel/process.c')
-rw-r--r--arch/arm/kernel/process.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index c3265a2e7cd4..1585423699ee 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -365,7 +365,7 @@ pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
365 regs.ARM_r2 = (unsigned long)fn; 365 regs.ARM_r2 = (unsigned long)fn;
366 regs.ARM_r3 = (unsigned long)do_exit; 366 regs.ARM_r3 = (unsigned long)do_exit;
367 regs.ARM_pc = (unsigned long)kernel_thread_helper; 367 regs.ARM_pc = (unsigned long)kernel_thread_helper;
368 regs.ARM_cpsr = SVC_MODE; 368 regs.ARM_cpsr = SVC_MODE | PSR_ENDSTATE;
369 369
370 return do_fork(flags|CLONE_VM|CLONE_UNTRACED, 0, &regs, 0, NULL, NULL); 370 return do_fork(flags|CLONE_VM|CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
371} 371}