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Commit c06b3a06 authored by Michal Simek's avatar Michal Simek
Browse files

microblaze: Do not use r0_ram space for hw exception debugging 



Remove hw exception counting space from r0_ram. Use special
exception_debug_table poll for exception statistic.

Signed-off-by: default avatarMichal Simek <monstr@monstr.eu>
parent a5abba98

arch/microblaze/kernel/hw_exception_handler.S

+16 −4
Original line number Diff line number Diff line
@@ -77,6 +77,8 @@ 
#include <asm/signal.h>

#include <asm/asm-offsets.h>



#undef DEBUG



/* Helpful Macros */

#define NUM_TO_REG(num)		r ## num
@@ -228,6 +230,16 @@ 
/* wrappers to restore state before coming to entry.S */



#ifdef CONFIG_MMU

#ifdef DEBUG

/* Create space for exception counting. */

.section .data

.global exception_debug_table

.align 4

exception_debug_table:

	/* Look at exception vector table. There is 32 exceptions * word size */

	.space	(32 * 4)

#endif /* DEBUG */



.section .rodata

.align 4

_MB_HW_ExceptionVectorTable:
@@ -329,12 +341,12 @@ not_in_delay_slot: 


#ifdef DEBUG

/* counting which exception happen */

	lwi	r5, r0, 0x200 + TOPHYS(r0_ram)

	lwi	r5, r0, TOPHYS(exception_debug_table)

	addi	r5, r5, 1

	swi	r5, r0, 0x200 + TOPHYS(r0_ram)

	lwi	r5, r6, 0x200 + TOPHYS(r0_ram)

	swi	r5, r0, TOPHYS(exception_debug_table)

	lwi	r5, r6, TOPHYS(exception_debug_table)

	addi	r5, r5, 1

	swi	r5, r6, 0x200 + TOPHYS(r0_ram)

	swi	r5, r6, TOPHYS(exception_debug_table)

#endif

/* end */

	/* Load the HW Exception vector */