You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
99 lines
2.9 KiB
Diff
99 lines
2.9 KiB
Diff
From 0f84c305351c993e4307e1e8c128d44760314e31 Mon Sep 17 00:00:00 2001
|
|
From: Andrew Bresticker <abrestic@chromium.org>
|
|
Date: Thu, 18 Sep 2014 14:47:07 -0700
|
|
Subject: [PATCH 1/3] MIPS: Always use IRQ domains for CPU IRQs
|
|
|
|
Use an IRQ domain for the 8 CPU IRQs in both the DT and non-DT cases.
|
|
|
|
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
|
|
Reviewed-by: Qais Yousef <qais.yousef@imgtec.com>
|
|
Tested-by: Qais Yousef <qais.yousef@imgtec.com>
|
|
Cc: Thomas Gleixner <tglx@linutronix.de>
|
|
Cc: Jason Cooper <jason@lakedaemon.net>
|
|
Cc: Andrew Bresticker <abrestic@chromium.org>
|
|
Cc: Jeffrey Deans <jeffrey.deans@imgtec.com>
|
|
Cc: Markos Chandras <markos.chandras@imgtec.com>
|
|
Cc: Paul Burton <paul.burton@imgtec.com>
|
|
Cc: Qais Yousef <qais.yousef@imgtec.com>
|
|
Cc: Jonas Gorski <jogo@openwrt.org>
|
|
Cc: John Crispin <blogic@openwrt.org>
|
|
Cc: David Daney <ddaney.cavm@gmail.com>
|
|
Cc: linux-mips@linux-mips.org
|
|
Cc: linux-kernel@vger.kernel.org
|
|
Patchwork: https://patchwork.linux-mips.org/patch/7799/
|
|
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
|
---
|
|
arch/mips/Kconfig | 1 +
|
|
arch/mips/kernel/irq_cpu.c | 36 +++++++++++-------------------------
|
|
2 files changed, 12 insertions(+), 25 deletions(-)
|
|
|
|
--- a/arch/mips/Kconfig
|
|
+++ b/arch/mips/Kconfig
|
|
@@ -1056,6 +1056,7 @@ config MIPS_HUGE_TLB_SUPPORT
|
|
|
|
config IRQ_CPU
|
|
bool
|
|
+ select IRQ_DOMAIN
|
|
|
|
config IRQ_CPU_RM7K
|
|
bool
|
|
--- a/arch/mips/kernel/irq_cpu.c
|
|
+++ b/arch/mips/kernel/irq_cpu.c
|
|
@@ -98,28 +98,6 @@ static struct irq_chip mips_mt_cpu_irq_c
|
|
.irq_enable = unmask_mips_irq,
|
|
};
|
|
|
|
-void __init mips_cpu_irq_init(void)
|
|
-{
|
|
- int irq_base = MIPS_CPU_IRQ_BASE;
|
|
- int i;
|
|
-
|
|
- /* Mask interrupts. */
|
|
- clear_c0_status(ST0_IM);
|
|
- clear_c0_cause(CAUSEF_IP);
|
|
-
|
|
- /* Software interrupts are used for MT/CMT IPI */
|
|
- for (i = irq_base; i < irq_base + 2; i++)
|
|
- irq_set_chip_and_handler(i, cpu_has_mipsmt ?
|
|
- &mips_mt_cpu_irq_controller :
|
|
- &mips_cpu_irq_controller,
|
|
- handle_percpu_irq);
|
|
-
|
|
- for (i = irq_base + 2; i < irq_base + 8; i++)
|
|
- irq_set_chip_and_handler(i, &mips_cpu_irq_controller,
|
|
- handle_percpu_irq);
|
|
-}
|
|
-
|
|
-#ifdef CONFIG_IRQ_DOMAIN
|
|
static int mips_cpu_intc_map(struct irq_domain *d, unsigned int irq,
|
|
irq_hw_number_t hw)
|
|
{
|
|
@@ -142,8 +120,7 @@ static const struct irq_domain_ops mips_
|
|
.xlate = irq_domain_xlate_onecell,
|
|
};
|
|
|
|
-int __init mips_cpu_intc_init(struct device_node *of_node,
|
|
- struct device_node *parent)
|
|
+static void __init __mips_cpu_irq_init(struct device_node *of_node)
|
|
{
|
|
struct irq_domain *domain;
|
|
|
|
@@ -155,7 +132,16 @@ int __init mips_cpu_intc_init(struct dev
|
|
&mips_cpu_intc_irq_domain_ops, NULL);
|
|
if (!domain)
|
|
panic("Failed to add irqdomain for MIPS CPU");
|
|
+}
|
|
|
|
+void __init mips_cpu_irq_init(void)
|
|
+{
|
|
+ __mips_cpu_irq_init(NULL);
|
|
+}
|
|
+
|
|
+int __init mips_cpu_intc_init(struct device_node *of_node,
|
|
+ struct device_node *parent)
|
|
+{
|
|
+ __mips_cpu_irq_init(of_node);
|
|
return 0;
|
|
}
|
|
-#endif /* CONFIG_IRQ_DOMAIN */
|