diff options
| author | Dave Kleikamp <shaggy@linux.vnet.ibm.com> | 2010-02-08 11:50:57 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-02-17 14:03:16 +1100 |
| commit | 172ae2e7f8ff9053905a36672453a6d2ff95b182 (patch) | |
| tree | 2469b6923a4d7756930ac9c83e8b8fc9bfcdcbe0 /arch/powerpc/kernel/process.c | |
| parent | 789c299ca280f96368c0296b739e89c0bb232f8a (diff) | |
powerpc/booke: Introduce new CONFIG options for advanced debug registers
powerpc/booke: Introduce new CONFIG options for advanced debug registers
From: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Introduce new config options to simplify the ifdefs pertaining to the
advanced debug registers for booke and 40x processors:
CONFIG_PPC_ADV_DEBUG_REGS - boolean: true for dac-based processors
CONFIG_PPC_ADV_DEBUG_IACS - number of IAC registers
CONFIG_PPC_ADV_DEBUG_DACS - number of DAC registers
CONFIG_PPC_ADV_DEBUG_DVCS - number of DVC registers
CONFIG_PPC_ADV_DEBUG_DAC_RANGE - DAC ranges supported
Beginning conservatively, since I only have the facilities to test 440
hardware. I believe all 40x and booke platforms support at least 2 IAC
and 2 DAC registers. For 440, 4 IAC and 2 DVC registers are enabled, as
well as the DAC ranges.
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Acked-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/process.c')
| -rw-r--r-- | arch/powerpc/kernel/process.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 7b816daf3eba..9be77e3936fb 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -258,7 +258,7 @@ void do_dabr(struct pt_regs *regs, unsigned long address, return; /* Clear the DAC and struct entries. One shot trigger */ -#if defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS mtspr(SPRN_DBCR0, mfspr(SPRN_DBCR0) & ~(DBSR_DAC1R | DBSR_DAC1W | DBCR0_IDM)); #endif @@ -284,7 +284,7 @@ int set_dabr(unsigned long dabr) return ppc_md.set_dabr(dabr); /* XXX should we have a CPU_FTR_HAS_DABR ? */ -#if defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS mtspr(SPRN_DAC1, dabr); #elif defined(CONFIG_PPC_BOOK3S) mtspr(SPRN_DABR, dabr); @@ -371,7 +371,7 @@ struct task_struct *__switch_to(struct task_struct *prev, #endif /* CONFIG_SMP */ -#if defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS /* If new thread DAC (HW breakpoint) is the same then leave it */ if (new->thread.dabr) set_dabr(new->thread.dabr); @@ -514,7 +514,7 @@ void show_regs(struct pt_regs * regs) printk(" CR: %08lx XER: %08lx\n", regs->ccr, regs->xer); trap = TRAP(regs); if (trap == 0x300 || trap == 0x600) -#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS printk("DEAR: "REG", ESR: "REG"\n", regs->dar, regs->dsisr); #else printk("DAR: "REG", DSISR: "REG"\n", regs->dar, regs->dsisr); @@ -560,7 +560,7 @@ void flush_thread(void) current->thread.dabr = 0; set_dabr(0); -#if defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS current->thread.dbcr0 &= ~(DBSR_DAC1R | DBSR_DAC1W); #endif } |