linux/arch/arm/mm/abort-nommu.S

#include <linux/linkage.h>
#include <asm/assembler.h>
/*
 * Function: nommu_early_abort
 *
 * Params  : r4 = aborted context pc
 *	   : r5 = aborted context psr
 *
 * Returns : r0 = 0 (abort address)
 *	   : r1 = 0 (FSR)
 *
 * Note: There is no FSR/FAR on !CPU_CP15_MMU cores.
 *       Just fill zero into the registers.
 */
	.align	5
ENTRY(nommu_early_abort)
	mov	r0, #0				@ clear r0, r1 (no FSR/FAR)
	mov	r1, #0
	mov	pc, lr
ENDPROC(nommu_early_abort)
[ARM] nommu: abort handler fixup for !CPU_CP15_MMU cores. There is no FSR/FAR register on no-CP15 or MPU cores. This patch adds a dummy abort handler which returns zero for the base restored Data Abort model !CPU_CP15_MMU cores. The abort-lv4t.S is still used with the fix-up for the base updated Data Abort model cores. Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 2006-09-28 12:46:16 +00:00			`#include <linux/linkage.h>`
			`#include <asm/assembler.h>`
			`/*`
			`* Function: nommu_early_abort`
			`*`
ARM: entry: data abort: arrange for CPU abort helpers to take pc/psr in r4/r5 Re-jig the CPU abort helpers to take the PC/PSR in r4/r5 rather than r2/r3. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 2011-06-26 13:35:07 +00:00			`* Params : r4 = aborted context pc`
			`* : r5 = aborted context psr`
[ARM] nommu: abort handler fixup for !CPU_CP15_MMU cores. There is no FSR/FAR register on no-CP15 or MPU cores. This patch adds a dummy abort handler which returns zero for the base restored Data Abort model !CPU_CP15_MMU cores. The abort-lv4t.S is still used with the fix-up for the base updated Data Abort model cores. Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 2006-09-28 12:46:16 +00:00			`*`
			`* Returns : r0 = 0 (abort address)`
			`* : r1 = 0 (FSR)`
			`*`
			`* Note: There is no FSR/FAR on !CPU_CP15_MMU cores.`
			`* Just fill zero into the registers.`
			`*/`
			`.align 5`
			`ENTRY(nommu_early_abort)`
			`mov r0, #0 @ clear r0, r1 (no FSR/FAR)`
			`mov r1, #0`
			`mov pc, lr`
[ARM] 5227/1: Add the ENDPROC declarations to the .S files This declaration specifies the "function" type and size for various assembly functions, mainly needed for generating the correct branch instructions in Thumb-2. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 2008-08-28 10:22:32 +00:00			`ENDPROC(nommu_early_abort)`