svn commit: r285272 - head/sys/arm64/arm64
Zbigniew Bodek
zbb at semihalf.com
Wed Jul 8 15:42:04 UTC 2015
2015-07-08 17:33 GMT+02:00 Andrew Turner <andrew at freebsd.org>:
> Author: andrew
> Date: Wed Jul 8 15:32:59 2015
> New Revision: 285272
> URL: https://svnweb.freebsd.org/changeset/base/285272
>
> Log:
> Add support for ipi_all_but_self on arm64.
>
> Obtained from: ABT Systems Ltd
> Sponsored by: The freeBSD Foundation
>
> Modified:
> head/sys/arm64/arm64/intr_machdep.c
>
> Modified: head/sys/arm64/arm64/intr_machdep.c
> ==============================================================================
> --- head/sys/arm64/arm64/intr_machdep.c Wed Jul 8 14:07:06 2015 (r285271)
> +++ head/sys/arm64/arm64/intr_machdep.c Wed Jul 8 15:32:59 2015 (r285272)
> @@ -48,6 +48,7 @@ __FBSDID("$FreeBSD$");
> #include <sys/cpuset.h>
> #include <sys/interrupt.h>
> #include <sys/queue.h>
> +#include <sys/smp.h>
>
> #include <machine/cpufunc.h>
> #include <machine/intr.h>
> @@ -473,9 +474,16 @@ arm_init_secondary(void)
> void
> ipi_all_but_self(u_int ipi)
> {
> + cpuset_t other_cpus;
>
> - /* ARM64TODO: We should support this */
> - panic("ipi_all_but_self");
> + other_cpus = all_cpus;
> + CPU_CLR(PCPU_GET(cpuid), &other_cpus);
> +
> + /* ARM64TODO: This will be fixed with arm_intrng */
> + ipi += 16;
BTW. Can you explain why we need += 16 here?
We think this is wrong and we will probably try to upstream patches
that i.a. remove this.
Best regards
zbb
> +
> + CTR2(KTR_SMP, "%s: ipi: %x", __func__, ipi);
> + PIC_IPI_SEND(root_pic, other_cpus, ipi);
> }
>
> void
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