diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/kernel/fiqasm.S')
| -rw-r--r-- | ANDROID_3.4.5/arch/arm/kernel/fiqasm.S | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/ANDROID_3.4.5/arch/arm/kernel/fiqasm.S b/ANDROID_3.4.5/arch/arm/kernel/fiqasm.S deleted file mode 100644 index 207f9d65..00000000 --- a/ANDROID_3.4.5/arch/arm/kernel/fiqasm.S +++ /dev/null @@ -1,49 +0,0 @@ -/* - * linux/arch/arm/kernel/fiqasm.S - * - * Derived from code originally in linux/arch/arm/kernel/fiq.c: - * - * Copyright (C) 1998 Russell King - * Copyright (C) 1998, 1999 Phil Blundell - * Copyright (C) 2011, Linaro Limited - * - * FIQ support written by Philip Blundell <philb@gnu.org>, 1998. - * - * FIQ support re-written by Russell King to be more generic - * - * v7/Thumb-2 compatibility modifications by Linaro Limited, 2011. - */ - -#include <linux/linkage.h> -#include <asm/assembler.h> - -/* - * Taking an interrupt in FIQ mode is death, so both these functions - * disable irqs for the duration. - */ - -ENTRY(__set_fiq_regs) - mov r2, #PSR_I_BIT | PSR_F_BIT | FIQ_MODE - mrs r1, cpsr - msr cpsr_c, r2 @ select FIQ mode - mov r0, r0 @ avoid hazard prior to ARMv4 - ldmia r0!, {r8 - r12} - ldr sp, [r0], #4 - ldr lr, [r0] - msr cpsr_c, r1 @ return to SVC mode - mov r0, r0 @ avoid hazard prior to ARMv4 - mov pc, lr -ENDPROC(__set_fiq_regs) - -ENTRY(__get_fiq_regs) - mov r2, #PSR_I_BIT | PSR_F_BIT | FIQ_MODE - mrs r1, cpsr - msr cpsr_c, r2 @ select FIQ mode - mov r0, r0 @ avoid hazard prior to ARMv4 - stmia r0!, {r8 - r12} - str sp, [r0], #4 - str lr, [r0] - msr cpsr_c, r1 @ return to SVC mode - mov r0, r0 @ avoid hazard prior to ARMv4 - mov pc, lr -ENDPROC(__get_fiq_regs) |