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| author | John W. Linville <linville@tuxdriver.com> | 2012-09-07 15:07:55 -0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-09-07 15:07:55 -0400 |
| commit | fac805f8c198092de9a2842efd7f5022e2937b18 (patch) | |
| tree | 7557809c373f97a343c427d8fded0696060394ce /arch/arm/vfp/entry.S | |
| parent | 2461c7d60f9f3821274e4acf9019cba8b82c94b5 (diff) | |
| parent | f10723841e624c0726c70356b31d91befed01dd6 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Diffstat (limited to 'arch/arm/vfp/entry.S')
| -rw-r--r-- | arch/arm/vfp/entry.S | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/arch/arm/vfp/entry.S b/arch/arm/vfp/entry.S index 4fa9903b83cf..cc926c985981 100644 --- a/arch/arm/vfp/entry.S +++ b/arch/arm/vfp/entry.S @@ -7,18 +7,20 @@ * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. - * - * Basic entry code, called from the kernel's undefined instruction trap. - * r0 = faulted instruction - * r5 = faulted PC+4 - * r9 = successful return - * r10 = thread_info structure - * lr = failure return */ #include <asm/thread_info.h> #include <asm/vfpmacros.h> #include "../kernel/entry-header.S" +@ VFP entry point. +@ +@ r0 = instruction opcode (32-bit ARM or two 16-bit Thumb) +@ r2 = PC value to resume execution after successful emulation +@ r9 = normal "successful" return address +@ r10 = this threads thread_info structure +@ lr = unrecognised instruction return address +@ IRQs disabled. +@ ENTRY(do_vfp) #ifdef CONFIG_PREEMPT ldr r4, [r10, #TI_PREEMPT] @ get preempt count |