arm/mm/abort-nommu.S

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #include <linux/linkage.h>
0003 #include <asm/assembler.h>
0004 /*
0005  * Function: nommu_early_abort
0006  *
0007  * Params  : r2 = pt_regs
0008  *     : r4 = aborted context pc
0009  *     : r5 = aborted context psr
0010  *
0011  * Returns : r4 - r11, r13 preserved
0012  *
0013  * Note: There is no FSR/FAR on !CPU_CP15_MMU cores.
0014  *       Just fill zero into the registers.
0015  */
0016     .align  5
0017 ENTRY(nommu_early_abort)
0018     mov r0, #0              @ clear r0, r1 (no FSR/FAR)
0019     mov r1, #0
0020     b   do_DataAbort
0021 ENDPROC(nommu_early_abort)