From 7e990266c845d7f712c96013891aaf74baef198f Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Fri, 5 May 2006 00:02:08 -0500 Subject: powerpc: provide ppc_md.panic() for both ppc32 & ppc64 Allow boards to provide a panic callback on ppc32. Moved the code to sets this up into setup-common.c so its shared between ppc32 & ppc64. Also moved do_init_bootmem prototype into setup.h. Signed-off-by: Kumar Gala --- arch/powerpc/kernel/setup-common.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'arch/powerpc/kernel/setup-common.c') diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 684ab1d49c6..88de557fe04 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -524,3 +524,20 @@ int check_legacy_ioport(unsigned long base_port) return ppc_md.check_legacy_ioport(base_port); } EXPORT_SYMBOL(check_legacy_ioport); + +static int ppc_panic_event(struct notifier_block *this, + unsigned long event, void *ptr) +{ + ppc_md.panic(ptr); /* May not return */ + return NOTIFY_DONE; +} + +static struct notifier_block ppc_panic_block = { + .notifier_call = ppc_panic_event, + .priority = INT_MIN /* may not return; must be done last */ +}; + +void __init setup_panic(void) +{ + atomic_notifier_chain_register(&panic_notifier_list, &ppc_panic_block); +} -- cgit v1.2.3-70-g09d2 From 480f6f35a149802a94ad5c1a2673ed6ec8d2c158 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Wed, 17 May 2006 18:00:41 +1000 Subject: [PATCH] powerpc: Make early xmon logic immune to location of early parsing Currently early_xmon() calls directly into debugger() if xmon=early is passed. This ties the invocation of early xmon to the location of parse_early_param(), which might change. Tested on P5 LPAR and F50. Signed-off-by: Michael Ellerman Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/setup-common.c | 3 ++- arch/powerpc/kernel/setup.h | 1 + arch/powerpc/kernel/setup_32.c | 3 +++ arch/powerpc/kernel/setup_64.c | 3 +++ 4 files changed, 9 insertions(+), 1 deletion(-) (limited to 'arch/powerpc/kernel/setup-common.c') diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 88de557fe04..bd328123af7 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -443,6 +443,7 @@ void __init smp_setup_cpu_maps(void) } #endif /* CONFIG_SMP */ +int __initdata do_early_xmon; #ifdef CONFIG_XMON static int __init early_xmon(char *p) { @@ -456,7 +457,7 @@ static int __init early_xmon(char *p) return 0; } xmon_init(1); - debugger(NULL); + do_early_xmon = 1; return 0; } diff --git a/arch/powerpc/kernel/setup.h b/arch/powerpc/kernel/setup.h index e67066c1933..4c67ad7fae0 100644 --- a/arch/powerpc/kernel/setup.h +++ b/arch/powerpc/kernel/setup.h @@ -4,5 +4,6 @@ void check_for_initrd(void); void do_init_bootmem(void); void setup_panic(void); +extern int do_early_xmon; #endif /* _POWERPC_KERNEL_SETUP_H */ diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c index 88832b3ee66..2b6cacb6946 100644 --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -297,6 +297,9 @@ void __init setup_arch(char **cmdline_p) parse_early_param(); + if (do_early_xmon) + debugger(NULL); + /* set up the bootmem stuff with available memory */ do_init_bootmem(); if ( ppc_md.progress ) ppc_md.progress("setup_arch: bootmem", 0x3eab); diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index ab6ea37a77a..a1923d917b3 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -419,6 +419,9 @@ void __init setup_system(void) parse_early_param(); + if (do_early_xmon) + debugger(NULL); + check_smt_enabled(); smp_setup_cpu_maps(); -- cgit v1.2.3-70-g09d2