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| author | Dave Kleikamp <shaggy@linux.vnet.ibm.com> | 2010-02-08 11:50:57 (GMT) |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-02-17 03:03:16 (GMT) |
| commit | 172ae2e7f8ff9053905a36672453a6d2ff95b182 (patch) | |
| tree | 2469b6923a4d7756930ac9c83e8b8fc9bfcdcbe0 /arch/powerpc/kernel/signal_32.c | |
| parent | 789c299ca280f96368c0296b739e89c0bb232f8a (diff) | |
| download | linux-172ae2e7f8ff9053905a36672453a6d2ff95b182.tar.xz | |
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/signal_32.c')
| -rw-r--r-- | arch/powerpc/kernel/signal_32.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c index d670429..e4883ae 100644 --- a/arch/powerpc/kernel/signal_32.c +++ b/arch/powerpc/kernel/signal_32.c @@ -1078,7 +1078,7 @@ int sys_debug_setcontext(struct ucontext __user *ctx, int i; unsigned char tmp; unsigned long new_msr = regs->msr; -#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS unsigned long new_dbcr0 = current->thread.dbcr0; #endif @@ -1087,7 +1087,7 @@ int sys_debug_setcontext(struct ucontext __user *ctx, return -EFAULT; switch (op.dbg_type) { case SIG_DBG_SINGLE_STEPPING: -#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS if (op.dbg_value) { new_msr |= MSR_DE; new_dbcr0 |= (DBCR0_IDM | DBCR0_IC); @@ -1103,7 +1103,7 @@ int sys_debug_setcontext(struct ucontext __user *ctx, #endif break; case SIG_DBG_BRANCH_TRACING: -#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS return -EINVAL; #else if (op.dbg_value) @@ -1124,7 +1124,7 @@ int sys_debug_setcontext(struct ucontext __user *ctx, failure is a problem, anyway, and it's very unlikely unless the user is really doing something wrong. */ regs->msr = new_msr; -#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS current->thread.dbcr0 = new_dbcr0; #endif |