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authorJonas Gorski <jogo@openwrt.org>2014-08-01 21:56:35 +0000
committerJonas Gorski <jogo@openwrt.org>2014-08-01 21:56:35 +0000
commitfaa51b307cfdbec28f474b48699358064e0f99c7 (patch)
tree00464a0e64ab7da443068b24b5b44050647e2369 /target/linux/brcm63xx/patches-3.10/324-MIPS-BCM63XX-protect-irq-register-accesses.patch
parent701e2a38fef4fce862eaeb21fc97874a6387a569 (diff)
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brcm63xx: switch to 3.14
Now that BB is branched off, we can now switch to 3.14 and start breaking stuff again. Signed-off-by: Jonas Gorski <jogo@openwrt.org> SVN-Revision: 41941
Diffstat (limited to 'target/linux/brcm63xx/patches-3.10/324-MIPS-BCM63XX-protect-irq-register-accesses.patch')
-rw-r--r--target/linux/brcm63xx/patches-3.10/324-MIPS-BCM63XX-protect-irq-register-accesses.patch162
1 files changed, 0 insertions, 162 deletions
diff --git a/target/linux/brcm63xx/patches-3.10/324-MIPS-BCM63XX-protect-irq-register-accesses.patch b/target/linux/brcm63xx/patches-3.10/324-MIPS-BCM63XX-protect-irq-register-accesses.patch
deleted file mode 100644
index 18669a1aac..0000000000
--- a/target/linux/brcm63xx/patches-3.10/324-MIPS-BCM63XX-protect-irq-register-accesses.patch
+++ /dev/null
@@ -1,162 +0,0 @@
-From 5e86f3988854c62c0788e4820caf722fec7c791b Mon Sep 17 00:00:00 2001
-From: Jonas Gorski <jogo@openwrt.org>
-Date: Sun, 21 Apr 2013 15:38:56 +0200
-Subject: [PATCH 07/10] MIPS: BCM63XX: protect irq register accesses
-
-Since we will have the chance of accessing the registers concurrently,
-protect any accesses through a spinlock.
-
-Signed-off-by: Jonas Gorski <jogo@openwrt.org>
----
- arch/mips/bcm63xx/irq.c | 26 ++++++++++++++++++++++++++
- 1 file changed, 26 insertions(+)
-
---- a/arch/mips/bcm63xx/irq.c
-+++ b/arch/mips/bcm63xx/irq.c
-@@ -12,6 +12,7 @@
- #include <linux/interrupt.h>
- #include <linux/module.h>
- #include <linux/irq.h>
-+#include <linux/spinlock.h>
- #include <asm/irq_cpu.h>
- #include <asm/mipsregs.h>
- #include <bcm63xx_cpu.h>
-@@ -20,6 +21,9 @@
- #include <bcm63xx_irq.h>
-
-
-+static DEFINE_SPINLOCK(ipic_lock);
-+static DEFINE_SPINLOCK(epic_lock);
-+
- static u32 irq_stat_addr[2];
- static u32 irq_mask_addr[2];
- static void (*dispatch_internal)(int cpu);
-@@ -62,8 +66,10 @@ void __dispatch_internal_##width(int cpu
- bool irqs_pending = false; \
- static unsigned int i[2]; \
- unsigned int *next = &i[cpu]; \
-+ unsigned long flags; \
- \
- /* read registers in reverse order */ \
-+ spin_lock_irqsave(&ipic_lock, flags); \
- for (src = 0, tgt = (width / 32); src < (width / 32); src++) { \
- u32 val; \
- \
-@@ -74,6 +80,7 @@ void __dispatch_internal_##width(int cpu
- if (val) \
- irqs_pending = true; \
- } \
-+ spin_unlock_irqrestore(&ipic_lock, flags); \
- \
- if (!irqs_pending) \
- return; \
-@@ -94,10 +101,13 @@ static void __internal_irq_mask_##width(
- u32 val; \
- unsigned reg = (irq / 32) ^ (width/32 - 1); \
- unsigned bit = irq & 0x1f; \
-+ unsigned long flags; \
- \
-+ spin_lock_irqsave(&ipic_lock, flags); \
- val = bcm_readl(irq_mask_addr[0] + reg * sizeof(u32)); \
- val &= ~(1 << bit); \
- bcm_writel(val, irq_mask_addr[0] + reg * sizeof(u32)); \
-+ spin_unlock_irqrestore(&ipic_lock, flags); \
- } \
- \
- static void __internal_irq_unmask_##width(unsigned int irq) \
-@@ -105,10 +115,13 @@ static void __internal_irq_unmask_##widt
- u32 val; \
- unsigned reg = (irq / 32) ^ (width/32 - 1); \
- unsigned bit = irq & 0x1f; \
-+ unsigned long flags; \
- \
-+ spin_lock_irqsave(&ipic_lock, flags); \
- val = bcm_readl(irq_mask_addr[0] + reg * sizeof(u32)); \
- val |= (1 << bit); \
- bcm_writel(val, irq_mask_addr[0] + reg * sizeof(u32)); \
-+ spin_unlock_irqrestore(&ipic_lock, flags); \
- }
-
- BUILD_IPIC_INTERNAL(32);
-@@ -167,8 +180,10 @@ static void bcm63xx_external_irq_mask(st
- {
- unsigned int irq = d->irq - IRQ_EXTERNAL_BASE;
- u32 reg, regaddr;
-+ unsigned long flags;
-
- regaddr = get_ext_irq_perf_reg(irq);
-+ spin_lock_irqsave(&epic_lock, flags);
- reg = bcm_perf_readl(regaddr);
-
- if (BCMCPU_IS_6348())
-@@ -177,6 +192,8 @@ static void bcm63xx_external_irq_mask(st
- reg &= ~EXTIRQ_CFG_MASK(irq % 4);
-
- bcm_perf_writel(reg, regaddr);
-+ spin_unlock_irqrestore(&epic_lock, flags);
-+
- if (is_ext_irq_cascaded)
- internal_irq_mask(irq + ext_irq_start);
- }
-@@ -185,8 +202,10 @@ static void bcm63xx_external_irq_unmask(
- {
- unsigned int irq = d->irq - IRQ_EXTERNAL_BASE;
- u32 reg, regaddr;
-+ unsigned long flags;
-
- regaddr = get_ext_irq_perf_reg(irq);
-+ spin_lock_irqsave(&epic_lock, flags);
- reg = bcm_perf_readl(regaddr);
-
- if (BCMCPU_IS_6348())
-@@ -195,6 +214,7 @@ static void bcm63xx_external_irq_unmask(
- reg |= EXTIRQ_CFG_MASK(irq % 4);
-
- bcm_perf_writel(reg, regaddr);
-+ spin_unlock_irqrestore(&epic_lock, flags);
-
- if (is_ext_irq_cascaded)
- internal_irq_unmask(irq + ext_irq_start);
-@@ -204,8 +224,10 @@ static void bcm63xx_external_irq_clear(s
- {
- unsigned int irq = d->irq - IRQ_EXTERNAL_BASE;
- u32 reg, regaddr;
-+ unsigned long flags;
-
- regaddr = get_ext_irq_perf_reg(irq);
-+ spin_lock_irqsave(&epic_lock, flags);
- reg = bcm_perf_readl(regaddr);
-
- if (BCMCPU_IS_6348())
-@@ -214,6 +236,7 @@ static void bcm63xx_external_irq_clear(s
- reg |= EXTIRQ_CFG_CLEAR(irq % 4);
-
- bcm_perf_writel(reg, regaddr);
-+ spin_unlock_irqrestore(&epic_lock, flags);
- }
-
- static int bcm63xx_external_irq_set_type(struct irq_data *d,
-@@ -222,6 +245,7 @@ static int bcm63xx_external_irq_set_type
- unsigned int irq = d->irq - IRQ_EXTERNAL_BASE;
- u32 reg, regaddr;
- int levelsense, sense, bothedge;
-+ unsigned long flags;
-
- flow_type &= IRQ_TYPE_SENSE_MASK;
-
-@@ -256,6 +280,7 @@ static int bcm63xx_external_irq_set_type
- }
-
- regaddr = get_ext_irq_perf_reg(irq);
-+ spin_lock_irqsave(&epic_lock, flags);
- reg = bcm_perf_readl(regaddr);
- irq %= 4;
-
-@@ -300,6 +325,7 @@ static int bcm63xx_external_irq_set_type
- }
-
- bcm_perf_writel(reg, regaddr);
-+ spin_unlock_irqrestore(&epic_lock, flags);
-
- irqd_set_trigger_type(d, flow_type);
- if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH))