ARM: GIC: remove direct use of gic_raise_softirq

In preparation of moving gic code to drivers/irqchip, remove the direct
platform dependencies on gic_raise_softirq. Move the setup of
smp_cross_call into the gic code and use arch_send_wakeup_ipi_mask
function to trigger wake-up IPIs.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Olof Johansson <olof@lixom.net>

1 files changed, 24 insertions, 21 deletions

diff --git a/arch/arm/common/gic.c b/arch/arm/common/gic.c
index 36ae03a3f5d1..788658cca960 100644
--- a/arch/arm/common/gic.c
+++ b/arch/arm/common/gic.c
@@ -617,6 +617,27 @@ static void __init gic_pm_init(struct gic_chip_data *gic)
 }
 #endif
 
+#ifdef CONFIG_SMP
+void gic_raise_softirq(const struct cpumask *mask, unsigned int irq)
+{
+        int cpu;
+        unsigned long map = 0;
+
+        /* Convert our logical CPU mask into a physical one. */
+        for_each_cpu(cpu, mask)
+                map |= 1 << cpu_logical_map(cpu);
+
+        /*
+         * Ensure that stores to Normal memory are visible to the
+         * other CPUs before issuing the IPI.
+         */
+        dsb();
+
+        /* this always happens on GIC0 */
+        writel_relaxed(map << 16 | irq, gic_data_dist_base(&gic_data[0]) + GIC_DIST_SOFTINT);
+}
+#endif
+
 static int gic_irq_domain_map(struct irq_domain *d, unsigned int irq,
                                 irq_hw_number_t hw)
 {
@@ -743,6 +764,9 @@ void __init gic_init_bases(unsigned int gic_nr, int irq_start,
         if (WARN_ON(!gic->domain))
                 return;
 
+#ifdef CONFIG_SMP
+        set_smp_cross_call(gic_raise_softirq);
+#endif
         gic_chip.flags |= gic_arch_extn.flags;
         gic_dist_init(gic);
         gic_cpu_init(gic);
@@ -756,27 +780,6 @@ void __cpuinit gic_secondary_init(unsigned int gic_nr)
         gic_cpu_init(&gic_data[gic_nr]);
 }
 
-#ifdef CONFIG_SMP
-void gic_raise_softirq(const struct cpumask *mask, unsigned int irq)
-{
-        int cpu;
-        unsigned long map = 0;
-
-        /* Convert our logical CPU mask into a physical one. */
-        for_each_cpu(cpu, mask)
-                map |= gic_cpu_map[cpu];
-
-        /*
-         * Ensure that stores to Normal memory are visible to the
-         * other CPUs before issuing the IPI.
-         */
-        dsb();
-
-        /* this always happens on GIC0 */
-        writel_relaxed(map << 16 | irq, gic_data_dist_base(&gic_data[0]) + GIC_DIST_SOFTINT);
-}
-#endif
-
 #ifdef CONFIG_OF
 static int gic_cnt __initdata = 0;