Messages in this thread Patch in this message | | | Date | Fri, 6 May 2005 16:28:56 +1000 | From | Paul Mackerras <> | Subject | [PATCH] ppc64: global interrupt queue cleanup |
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Move the code to set global interrupt queue membership to xics.c, and remove no longer needed extern declarations. Also call it on all cpus (even the boot cpu) to prepare for kexec.
Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: R Sharada <sharada@in.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org> ---
diff -urN linux-2.6/arch/ppc64/kernel/pSeries_smp.c test/arch/ppc64/kernel/pSeries_smp.c --- linux-2.6/arch/ppc64/kernel/pSeries_smp.c 2005-04-26 15:37:55.000000000 +1000 +++ test/arch/ppc64/kernel/pSeries_smp.c 2005-05-06 15:23:05.000000000 +1000 @@ -326,13 +326,6 @@ cpu_clear(cpu, of_spin_map); - /* - * Put the calling processor into the GIQ. This is really only - * necessary from a secondary thread as the OF start-cpu interface - * performs this function for us on primary threads. - */ - rtas_set_indicator(GLOBAL_INTERRUPT_QUEUE, - (1UL << interrupt_server_size) - 1 - default_distrib_server, 1); } static DEFINE_SPINLOCK(timebase_lock); diff -urN linux-2.6/arch/ppc64/kernel/xics.c test/arch/ppc64/kernel/xics.c --- linux-2.6/arch/ppc64/kernel/xics.c 2005-04-26 15:37:55.000000000 +1000 +++ test/arch/ppc64/kernel/xics.c 2005-05-06 15:23:05.000000000 +1000 @@ -432,6 +432,7 @@ { ops->qirr_info(cpu, IPI_PRIORITY); } +#endif /* CONFIG_SMP */ void xics_setup_cpu(void) { @@ -439,9 +440,17 @@ ops->cppr_info(cpu, 0xff); iosync(); -} -#endif /* CONFIG_SMP */ + /* + * Put the calling processor into the GIQ. This is really only + * necessary from a secondary thread as the OF start-cpu interface + * performs this function for us on primary threads. + * + * XXX: undo of teardown on kexec needs this too, as may hotplug + */ + rtas_set_indicator(GLOBAL_INTERRUPT_QUEUE, + (1UL << interrupt_server_size) - 1 - default_distrib_server, 1); +} void xics_init_IRQ(void) { @@ -563,8 +572,7 @@ for (; i < NR_IRQS; ++i) get_irq_desc(i)->handler = &xics_pic; - ops->cppr_info(boot_cpuid, 0xff); - iosync(); + xics_setup_cpu(); ppc64_boot_msg(0x21, "XICS Done"); } diff -urN linux-2.6/include/asm-ppc64/xics.h test/include/asm-ppc64/xics.h --- linux-2.6/include/asm-ppc64/xics.h 2005-04-26 15:38:02.000000000 +1000 +++ test/include/asm-ppc64/xics.h 2005-05-06 15:23:05.000000000 +1000 @@ -30,7 +30,4 @@ extern struct xics_ipi_struct xics_ipi_message[NR_CPUS] __cacheline_aligned; -extern unsigned int default_distrib_server; -extern unsigned int interrupt_server_size; - #endif /* _PPC64_KERNEL_XICS_H */ - 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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