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| author | Michal Simek <monstr@monstr.eu> | 2011-01-31 15:07:53 +0100 |
|---|---|---|
| committer | Michal Simek <monstr@monstr.eu> | 2011-03-09 08:09:53 +0100 |
| commit | c06b3a068223cb885d85ac4f6c31e870ca2b5aac (patch) | |
| tree | f1834508401510f50135d3e58dbc36df464afd43 /arch/microblaze/kernel/hw_exception_handler.S | |
| parent | Linux 2.6.38-rc8 (diff) | |
| download | linux-c06b3a068223cb885d85ac4f6c31e870ca2b5aac.tar.xz linux-c06b3a068223cb885d85ac4f6c31e870ca2b5aac.zip | |
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: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'arch/microblaze/kernel/hw_exception_handler.S')
| -rw-r--r-- | arch/microblaze/kernel/hw_exception_handler.S | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/arch/microblaze/kernel/hw_exception_handler.S b/arch/microblaze/kernel/hw_exception_handler.S index 782680de3121..ec5e99dd5d75 100644 --- a/arch/microblaze/kernel/hw_exception_handler.S +++ b/arch/microblaze/kernel/hw_exception_handler.S @@ -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 */ |