Messages in this thread Patch in this message | | | Date | Wed, 23 Oct 2002 02:42:59 -0700 (PDT) | From | "Matt D. Robinson" <> | Subject | [PATCH] LKCD for 2.5.44 (1/8): dump vector |
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This adds the DUMP_VECTOR interrupt.
arch/i386/kernel/smp.c | 15 +++++++++++++++ arch/i386/mach-generic/irq_vectors.h | 1 + include/asm-i386/smp.h | 1 + 3 files changed, 17 insertions(+)
diff -Naur linux-2.5.44.orig/arch/i386/kernel/smp.c linux-2.5.44.lkcd/arch/i386/kernel/smp.c --- linux-2.5.44.orig/arch/i386/kernel/smp.c Fri Oct 18 21:01:10 2002 +++ linux-2.5.44.lkcd/arch/i386/kernel/smp.c Sat Oct 19 12:39:15 2002 @@ -19,6 +19,8 @@ #include <linux/mc146818rtc.h> #include <linux/cache.h> #include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/dump.h> #include <asm/mtrr.h> #include <asm/pgalloc.h> @@ -143,6 +145,13 @@ */ cfg = __prepare_ICR(shortcut, vector); + if (vector == DUMP_VECTOR) { + /* + * Setup DUMP IPI to be delivered as an NMI + */ + cfg = (cfg&~APIC_VECTOR_MASK)|APIC_DM_NMI; + } + /* * Send the IPI. The write to APIC_ICR fires this off. */ @@ -504,6 +513,11 @@ do_flush_tlb_all_local(); } +void dump_send_ipi(void) +{ + send_IPI_allbutself(DUMP_VECTOR); +} + /* * this function sends a 'reschedule' IPI to another CPU. * it goes straight through and wastes no time serializing @@ -654,3 +668,4 @@ } } +EXPORT_SYMBOL(dump_send_ipi); diff -Naur linux-2.5.44.orig/arch/i386/mach-generic/irq_vectors.h linux-2.5.44.lkcd/arch/i386/mach-generic/irq_vectors.h --- linux-2.5.44.orig/arch/i386/mach-generic/irq_vectors.h Fri Oct 18 21:01:18 2002 +++ linux-2.5.44.lkcd/arch/i386/mach-generic/irq_vectors.h Sat Oct 19 12:39:15 2002 @@ -48,6 +48,7 @@ #define INVALIDATE_TLB_VECTOR 0xfd #define RESCHEDULE_VECTOR 0xfc #define CALL_FUNCTION_VECTOR 0xfb +#define DUMP_VECTOR 0xfa #define THERMAL_APIC_VECTOR 0xf0 /* diff -Naur linux-2.5.44.orig/include/asm-i386/smp.h linux-2.5.44.lkcd/include/asm-i386/smp.h --- linux-2.5.44.orig/include/asm-i386/smp.h Fri Oct 18 21:01:58 2002 +++ linux-2.5.44.lkcd/include/asm-i386/smp.h Sat Oct 19 12:39:15 2002 @@ -54,6 +54,7 @@ extern int cpu_sibling_map[]; extern void smp_flush_tlb(void); +extern void dump_send_ipi(void); extern void smp_message_irq(int cpl, void *dev_id, struct pt_regs *regs); extern void smp_send_reschedule(int cpu); extern void smp_send_reschedule_all(void); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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