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| 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/traps.c | |
| parent | 789c299ca280f96368c0296b739e89c0bb232f8a (diff) | |
| download | lwn-172ae2e7f8ff9053905a36672453a6d2ff95b182.tar.gz lwn-172ae2e7f8ff9053905a36672453a6d2ff95b182.zip | |
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/traps.c')
| -rw-r--r-- | arch/powerpc/kernel/traps.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 895da29e7db8..4e293b75f951 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -299,7 +299,7 @@ static inline int check_io_access(struct pt_regs *regs) return 0; } -#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS /* On 4xx, the reason for the machine check or program exception is in the ESR. */ #define get_reason(regs) ((regs)->dsisr) @@ -1033,7 +1033,7 @@ void SoftwareEmulation(struct pt_regs *regs) } #endif /* CONFIG_8xx */ -#if defined(CONFIG_40x) || defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS void __kprobes DebugException(struct pt_regs *regs, unsigned long debug_status) { @@ -1102,7 +1102,7 @@ void __kprobes DebugException(struct pt_regs *regs, unsigned long debug_status) do_dabr(regs, mfspr(SPRN_DAC1), debug_status); } } -#endif /* CONFIG_4xx || CONFIG_BOOKE */ +#endif /* CONFIG_PPC_ADV_DEBUG_REGS */ #if !defined(CONFIG_TAU_INT) void TAUException(struct pt_regs *regs) |