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Groups > linux.kernel > #1282248
| From | Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v3 14/19] irqchip/mips-gic: Use gic_vpes instead of NR_CPUS |
| Date | 2015-12-02 19:30 +0100 |
| Message-ID | <qBkk9-2qa-1@gated-at.bofh.it> (permalink) |
| References | <qBeHM-76w-3@gated-at.bofh.it> <qBeHM-76w-7@gated-at.bofh.it> |
| Organization | Cogent Embedded |
Hello.
On 12/02/2015 03:21 PM, Qais Yousef wrote:
> NR_CPUS is set by Kconfig and could be much higher than what actually is in the
> system.
>
> gic_vpes should be a true representitives of the number of cpus in the system,
> so use it instead.
>
> Signed-off-by: Qais Yousef <qais.yousef@imgtec.com>
> ---
> drivers/irqchip/irq-mips-gic.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c
> index 41ccc84c68ba..c24feb739bb3 100644
> --- a/drivers/irqchip/irq-mips-gic.c
> +++ b/drivers/irqchip/irq-mips-gic.c
[...]
> @@ -1084,7 +1084,7 @@ static void __init __gic_init(unsigned long gic_base_addr,
> gic_ipi_domain->bus_token = DOMAIN_BUS_IPI;
>
> /* Make the last 2 * NR_CPUS available for IPIs */
Looks like you forgot to also change this comment...
> - bitmap_set(ipi_resrv, gic_shared_intrs - 2 * NR_CPUS, 2 * NR_CPUS);
> + bitmap_set(ipi_resrv, gic_shared_intrs - 2 * gic_vpes, 2 * gic_vpes);
>
> gic_basic_init();
>
MBR, Sergei
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[PATCH v3 14/19] irqchip/mips-gic: Use gic_vpes instead of NR_CPUS Qais Yousef <qais.yousef@imgtec.com> - 2015-12-02 13:30 +0100
Re: [PATCH v3 14/19] irqchip/mips-gic: Use gic_vpes instead of NR_CPUS Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2015-12-02 19:30 +0100
Re: [PATCH v3 14/19] irqchip/mips-gic: Use gic_vpes instead of NR_CPUS Qais Yousef <qais.yousef@imgtec.com> - 2015-12-03 11:00 +0100
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