1#include <linux/linkage.h>
2#include <asm/assembler.h>
3/*
4 * Function: v7_early_abort
5 *
6 * Params  : r2 = address of aborted instruction
7 *         : r3 = saved SPSR
8 *
9 * Returns : r0 = address of abort
10 *	   : r1 = FSR, bit 11 = write
11 *	   : r2-r8 = corrupted
12 *	   : r9 = preserved
13 *	   : sp = pointer to registers
14 *
15 * Purpose : obtain information about current aborted instruction.
16 */
17	.align	5
18ENTRY(v7_early_abort)
19	/*
20	 * The effect of data aborts on on the exclusive access monitor are
21	 * UNPREDICTABLE. Do a CLREX to clear the state
22	 */
23	clrex
24
25	mrc	p15, 0, r1, c5, c0, 0		@ get FSR
26	mrc	p15, 0, r0, c6, c0, 0		@ get FAR
27
28	/*
29	 * V6 code adjusts the returned DFSR.
30	 * New designs should not need to patch up faults.
31	 */
32	mov	pc, lr
33