lkml.org 
[lkml]   [2012]   [Jun]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 02/12] irqdomain: Always update revmap when setting up a virq
    Date
    At irq_setup_virq() time all of the data needed to update the reverse
    map is available, but the current code ignores it and relies upon the
    slow path to insert revmap records. This patch adds revmap updating
    to the setup path so the slow path will no longer be necessary.

    Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
    Cc: Paul Mundt <lethal@linux-sh.org>
    Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Rob Herring <rob.herring@calxeda.com>
    ---
    kernel/irq/irqdomain.c | 10 ++++++++++
    1 file changed, 10 insertions(+)

    diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
    index 4161d2a..5c36722 100644
    --- a/kernel/irq/irqdomain.c
    +++ b/kernel/irq/irqdomain.c
    @@ -393,6 +393,16 @@ static int irq_setup_virq(struct irq_domain *domain, unsigned int virq,
    return -1;
    }

    + switch (domain->revmap_type) {
    + case IRQ_DOMAIN_MAP_LINEAR:
    + if (hwirq < domain->revmap_data.linear.size)
    + domain->revmap_data.linear.revmap[hwirq] = virq;
    + break;
    + case IRQ_DOMAIN_MAP_TREE:
    + irq_radix_revmap_insert(domain, virq, hwirq);
    + break;
    + }
    +
    irq_clear_status_flags(virq, IRQ_NOREQUEST);

    return 0;
    --
    1.7.9.5


    \
     
     \ /
      Last update: 2012-06-16 08:02    [W:0.033 / U:90.804 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site