diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mm/abort-ev7.S')
| -rw-r--r-- | ANDROID_3.4.5/arch/arm/mm/abort-ev7.S | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mm/abort-ev7.S b/ANDROID_3.4.5/arch/arm/mm/abort-ev7.S deleted file mode 100644 index 70337527..00000000 --- a/ANDROID_3.4.5/arch/arm/mm/abort-ev7.S +++ /dev/null @@ -1,51 +0,0 @@ -#include <linux/linkage.h> -#include <asm/assembler.h> -/* - * Function: v7_early_abort - * - * Params : r2 = pt_regs - * : r4 = aborted context pc - * : r5 = aborted context psr - * - * Returns : r4 - r11, r13 preserved - * - * Purpose : obtain information about current aborted instruction. - */ - .align 5 -ENTRY(v7_early_abort) - /* - * The effect of data aborts on on the exclusive access monitor are - * UNPREDICTABLE. Do a CLREX to clear the state - */ - clrex - - mrc p15, 0, r1, c5, c0, 0 @ get FSR - mrc p15, 0, r0, c6, c0, 0 @ get FAR - - /* - * V6 code adjusts the returned DFSR. - * New designs should not need to patch up faults. - */ - -#if defined(CONFIG_VERIFY_PERMISSION_FAULT) - /* - * Detect erroneous permission failures and fix - */ - ldr r3, =0x40d @ On permission fault - and r3, r1, r3 - cmp r3, #0x0d - bne do_DataAbort - - mcr p15, 0, r0, c7, c8, 0 @ Retranslate FAR - isb - mrc p15, 0, ip, c7, c4, 0 @ Read the PAR - and r3, ip, #0x7b @ On translation fault - cmp r3, #0x0b - bne do_DataAbort - bic r1, r1, #0xf @ Fix up FSR FS[5:0] - and ip, ip, #0x7e - orr r1, r1, ip, LSR #1 -#endif - - b do_DataAbort -ENDPROC(v7_early_abort) |