target/linux/brcm63xx/patches-3.8/321-MIPS-BCM63XX-add-cpumask-argument-to-unmask.patch

   1 From 8679976d2ec08db4e4a14ecdd1ee022b70e51fc6 Mon Sep 17 00:00:00 2001
   2 From: Jonas Gorski <jogo@openwrt.org>
   3 Date: Tue, 30 Apr 2013 11:26:53 +0200
   4 Subject: [PATCH 12/13] MIPS: BCM63XX: add cpumask argument to unmask
   5
   6 Allow selective unmasking of IPIC irqs.
   7
   8 Signed-off-by: Jonas Gorski <jogo@openwrt.org>
   9 ---
  10  arch/mips/bcm63xx/irq.c |   19 +++++++++++++------
  11  1 file changed, 13 insertions(+), 6 deletions(-)
  12
  13 --- a/arch/mips/bcm63xx/irq.c
  14 +++ b/arch/mips/bcm63xx/irq.c
  15 @@ -24,8 +24,10 @@ static void __dispatch_internal_32(int c
  16  static void __dispatch_internal_64(int cpu) __maybe_unused;
  17  static void __internal_irq_mask_32(unsigned int irq) __maybe_unused;
  18  static void __internal_irq_mask_64(unsigned int irq) __maybe_unused;
  19 -static void __internal_irq_unmask_32(unsigned int irq) __maybe_unused;
  20 -static void __internal_irq_unmask_64(unsigned int irq) __maybe_unused;
  21 +static void __internal_irq_unmask_32(unsigned int irq,
  22 +                                    const struct cpumask *dest) __maybe_unused;
  23 +static void __internal_irq_unmask_64(unsigned int irq,
  24 +                                    const struct cpumask *dest) __maybe_unused;
  25
  26  static DEFINE_SPINLOCK(ipic_lock);
  27  static DEFINE_SPINLOCK(epic_lock);
  28 @@ -150,7 +152,8 @@ static unsigned int ext_irq_count;
  29  static unsigned int ext_irq_start, ext_irq_end;
  30  static unsigned int ext_irq_cfg_reg1, ext_irq_cfg_reg2;
  31  static void (*internal_irq_mask)(unsigned int irq);
  32 -static void (*internal_irq_unmask)(unsigned int irq);
  33 +static void (*internal_irq_unmask)(unsigned int irq,
  34 +                                  const struct cpumask *dest);
  35
  36  static void bcm63xx_init_irq(void)
  37  {
  38 @@ -340,7 +343,8 @@ static void __internal_irq_mask_##width(
  39         }                                                               \
  40  }                                                                      \
  41                                                                         \
  42 -static void __internal_irq_unmask_##width(unsigned int irq)            \
  43 +static void __internal_irq_unmask_##width(unsigned int irq,            \
  44 +                                       const struct cpumask *dest)     \
  45  {                                                                      \
  46         u32 val;                                                        \
  47         unsigned reg = (irq / 32) ^ (width/32 - 1);                     \
  48 @@ -351,7 +355,10 @@ static void __internal_irq_unmask_##widt
  49                 u32 irq_mask_addr = get_irq_mask_addr(cpu);             \
  50                                                                         \
  51                 val = bcm_readl(irq_mask_addr + reg * sizeof(u32));     \
  52 -               val |= (1 << bit);                                      \
  53 +               if (cpu_isset(cpu, *dest))                              \
  54 +                       val |= (1 << bit);                              \
  55 +               else                                                    \
  56 +                       val &= ~(1 << bit);                             \
  57                 bcm_writel(val, irq_mask_addr + reg * sizeof(u32));     \
  58         }                                                               \
  59  }
  60 @@ -413,7 +420,7 @@ static void bcm63xx_internal_irq_unmask(
  61         unsigned long flags;
  62
  63         spin_lock_irqsave(&ipic_lock, flags);
  64 -       internal_irq_unmask(d->irq - IRQ_INTERNAL_BASE);
  65 +       internal_irq_unmask(d->irq - IRQ_INTERNAL_BASE, cpu_online_mask);
  66         spin_unlock_irqrestore(&ipic_lock, flags);
  67  }
  68