diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-3.14/027-MIPS-BCM63XX-allow-setting-affinity-for-IPIC.patch')
| -rw-r--r-- | target/linux/brcm63xx/patches-3.14/027-MIPS-BCM63XX-allow-setting-affinity-for-IPIC.patch | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/target/linux/brcm63xx/patches-3.14/027-MIPS-BCM63XX-allow-setting-affinity-for-IPIC.patch b/target/linux/brcm63xx/patches-3.14/027-MIPS-BCM63XX-allow-setting-affinity-for-IPIC.patch deleted file mode 100644 index a625b2e67b..0000000000 --- a/target/linux/brcm63xx/patches-3.14/027-MIPS-BCM63XX-allow-setting-affinity-for-IPIC.patch +++ /dev/null @@ -1,118 +0,0 @@ -From 23493b47d8caaa59b18627a01bf443c3b50bb530 Mon Sep 17 00:00:00 2001 -From: Jonas Gorski <jogo@openwrt.org> -Date: Fri, 26 Apr 2013 12:06:03 +0200 -Subject: [PATCH 10/10] MIPS: BCM63XX: allow setting affinity for IPIC - -Wire up the set_affinity call for the internal PIC if booting on -a cpu supporting it. -Affinity is kept to boot cpu as default. - -Signed-off-by: Jonas Gorski <jogo@openwrt.org> ---- - arch/mips/bcm63xx/irq.c | 46 ++++++++++++++++++++++++++++++++++++++++------ - 1 file changed, 40 insertions(+), 6 deletions(-) - ---- a/arch/mips/bcm63xx/irq.c -+++ b/arch/mips/bcm63xx/irq.c -@@ -32,7 +32,7 @@ static unsigned int ext_irq_count; - static unsigned int ext_irq_start, ext_irq_end; - static unsigned int ext_irq_cfg_reg1, ext_irq_cfg_reg2; - static void (*internal_irq_mask)(struct irq_data *d); --static void (*internal_irq_unmask)(struct irq_data *d); -+static void (*internal_irq_unmask)(struct irq_data *d, const struct cpumask *m); - - - static inline u32 get_ext_irq_perf_reg(int irq) -@@ -51,6 +51,20 @@ static inline void handle_internal(int i - do_IRQ(intbit + IRQ_INTERNAL_BASE); - } - -+static inline int enable_irq_for_cpu(int cpu, struct irq_data *d, -+ const struct cpumask *m) -+{ -+ bool enable = cpu_online(cpu); -+ -+#ifdef CONFIG_SMP -+ if (m) -+ enable &= cpu_isset(cpu, *m); -+ else if (irqd_affinity_was_set(d)) -+ enable &= cpu_isset(cpu, *d->affinity); -+#endif -+ return enable; -+} -+ - /* - * dispatch internal devices IRQ (uart, enet, watchdog, ...). do not - * prioritize any interrupt relatively to another. the static counter -@@ -117,7 +131,8 @@ static void __internal_irq_mask_##width( - spin_unlock_irqrestore(&ipic_lock, flags); \ - } \ - \ --static void __internal_irq_unmask_##width(struct irq_data *d) \ -+static void __internal_irq_unmask_##width(struct irq_data *d, \ -+ const struct cpumask *m) \ - { \ - u32 val; \ - unsigned irq = d->irq - IRQ_INTERNAL_BASE; \ -@@ -132,7 +147,7 @@ static void __internal_irq_unmask_##widt - break; \ - \ - val = bcm_readl(irq_mask_addr[cpu] + reg * sizeof(u32));\ -- if (cpu_online(cpu)) \ -+ if (enable_irq_for_cpu(cpu, d, m)) \ - val |= (1 << bit); \ - else \ - val &= ~(1 << bit); \ -@@ -189,7 +204,7 @@ static void bcm63xx_internal_irq_mask(st - - static void bcm63xx_internal_irq_unmask(struct irq_data *d) - { -- internal_irq_unmask(d); -+ internal_irq_unmask(d, NULL); - } - - /* -@@ -237,7 +252,8 @@ static void bcm63xx_external_irq_unmask( - spin_unlock_irqrestore(&epic_lock, flags); - - if (is_ext_irq_cascaded) -- internal_irq_unmask(irq_get_irq_data(irq + ext_irq_start)); -+ internal_irq_unmask(irq_get_irq_data(irq + ext_irq_start), -+ NULL); - } - - static void bcm63xx_external_irq_clear(struct irq_data *d) -@@ -356,6 +372,18 @@ static int bcm63xx_external_irq_set_type - return IRQ_SET_MASK_OK_NOCOPY; - } - -+#ifdef CONFIG_SMP -+static int bcm63xx_internal_set_affinity(struct irq_data *data, -+ const struct cpumask *dest, -+ bool force) -+{ -+ if (!irqd_irq_disabled(data)) -+ internal_irq_unmask(data, dest); -+ -+ return 0; -+} -+#endif -+ - static struct irq_chip bcm63xx_internal_irq_chip = { - .name = "bcm63xx_ipic", - .irq_mask = bcm63xx_internal_irq_mask, -@@ -523,7 +551,13 @@ void __init arch_init_irq(void) - - setup_irq(MIPS_CPU_IRQ_BASE + 2, &cpu_ip2_cascade_action); - #ifdef CONFIG_SMP -- if (is_ext_irq_cascaded) -+ if (is_ext_irq_cascaded) { - setup_irq(MIPS_CPU_IRQ_BASE + 3, &cpu_ip3_cascade_action); -+ bcm63xx_internal_irq_chip.irq_set_affinity = -+ bcm63xx_internal_set_affinity; -+ -+ cpumask_clear(irq_default_affinity); -+ cpumask_set_cpu(smp_processor_id(), irq_default_affinity); -+ } - #endif - } |