Commit-ID: ffde1de64012c406dfdda8690918248b472f24e4 Gitweb: http://git.kernel.org/tip/ffde1de64012c406dfdda8690918248b472f24e4 Author: Thomas Gleixner <[email protected]> AuthorDate: Wed, 16 Apr 2014 14:36:44 +0000 Committer: Thomas Gleixner <[email protected]> CommitDate: Thu, 17 Apr 2014 23:36:28 +0200
irqchip: Gic: Support forced affinity setting To support the affinity setting of per cpu timers in the early startup of a not yet online cpu, implement the force logic, which disables the cpu online check. Tagged for stable to allow a simple fix of the affected SoC clock event drivers. Signed-off-by: Thomas Gleixner <[email protected]> Tested-by: Krzysztof Kozlowski <[email protected]> Cc: Kyungmin Park <[email protected]> Cc: Marek Szyprowski <[email protected]> Cc: Bartlomiej Zolnierkiewicz <[email protected]> Cc: Tomasz Figa <[email protected]>, Cc: Daniel Lezcano <[email protected]>, Cc: Kukjin Kim <[email protected]> Cc: [email protected], Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]> --- drivers/irqchip/irq-gic.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c index 4300b66..57d165e 100644 --- a/drivers/irqchip/irq-gic.c +++ b/drivers/irqchip/irq-gic.c @@ -246,10 +246,14 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *mask_val, bool force) { void __iomem *reg = gic_dist_base(d) + GIC_DIST_TARGET + (gic_irq(d) & ~3); - unsigned int shift = (gic_irq(d) % 4) * 8; - unsigned int cpu = cpumask_any_and(mask_val, cpu_online_mask); + unsigned int cpu, shift = (gic_irq(d) % 4) * 8; u32 val, mask, bit; + if (!force) + cpu = cpumask_any_and(mask_val, cpu_online_mask); + else + cpu = cpumask_first(mask_val); + if (cpu >= NR_GIC_CPU_IF || cpu >= nr_cpu_ids) return -EINVAL; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
