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Diffstat (limited to 'target/linux/brcm2708/patches-4.9/950-0131-ARM64-Round-Robin-dispatch-IRQs-between-CPUs.patch')
-rw-r--r--target/linux/brcm2708/patches-4.9/950-0131-ARM64-Round-Robin-dispatch-IRQs-between-CPUs.patch72
1 files changed, 0 insertions, 72 deletions
diff --git a/target/linux/brcm2708/patches-4.9/950-0131-ARM64-Round-Robin-dispatch-IRQs-between-CPUs.patch b/target/linux/brcm2708/patches-4.9/950-0131-ARM64-Round-Robin-dispatch-IRQs-between-CPUs.patch
deleted file mode 100644
index d11ca6bffd..0000000000
--- a/target/linux/brcm2708/patches-4.9/950-0131-ARM64-Round-Robin-dispatch-IRQs-between-CPUs.patch
+++ /dev/null
@@ -1,72 +0,0 @@
-From 3a9b48156c6681e846d1a7dbe4ecbb3ae14c2f3c Mon Sep 17 00:00:00 2001
-From: Michael Zoran <mzoran@crowfest.net>
-Date: Sat, 14 Jan 2017 21:43:57 -0800
-Subject: [PATCH] ARM64: Round-Robin dispatch IRQs between CPUs.
-
-IRQ-CPU mapping is round robined on ARM64 to increase
-concurrency and allow multiple interrupts to be serviced
-at a time. This reduces the need for FIQ.
-
-Signed-off-by: Michael Zoran <mzoran@crowfest.net>
----
- drivers/irqchip/irq-bcm2835.c | 15 ++++++++++++++-
- drivers/irqchip/irq-bcm2836.c | 21 +++++++++++++++++++++
- 2 files changed, 35 insertions(+), 1 deletion(-)
-
---- a/drivers/irqchip/irq-bcm2835.c
-+++ b/drivers/irqchip/irq-bcm2835.c
-@@ -168,10 +168,23 @@ static void armctrl_unmask_irq(struct ir
- }
- }
-
-+#ifdef CONFIG_ARM64
-+void bcm2836_arm_irqchip_spin_gpu_irq(void);
-+
-+static void armctrl_ack_irq(struct irq_data *d)
-+{
-+ bcm2836_arm_irqchip_spin_gpu_irq();
-+}
-+
-+#endif
-+
- static struct irq_chip armctrl_chip = {
- .name = "ARMCTRL-level",
- .irq_mask = armctrl_mask_irq,
-- .irq_unmask = armctrl_unmask_irq
-+ .irq_unmask = armctrl_unmask_irq,
-+#ifdef CONFIG_ARM64
-+ .irq_ack = armctrl_ack_irq
-+#endif
- };
-
- static int armctrl_xlate(struct irq_domain *d, struct device_node *ctrlr,
---- a/drivers/irqchip/irq-bcm2836.c
-+++ b/drivers/irqchip/irq-bcm2836.c
-@@ -145,6 +145,27 @@ static void bcm2836_arm_irqchip_unmask_g
- {
- }
-
-+#ifdef CONFIG_ARM64
-+
-+void bcm2836_arm_irqchip_spin_gpu_irq(void)
-+{
-+ u32 i;
-+ void __iomem *gpurouting = (intc.base + LOCAL_GPU_ROUTING);
-+ u32 routing_val = readl(gpurouting);
-+
-+ for (i = 1; i <= 3; i++) {
-+ u32 new_routing_val = (routing_val + i) & 3;
-+
-+ if (cpu_active(new_routing_val)) {
-+ writel(new_routing_val, gpurouting);
-+ return;
-+ }
-+ }
-+}
-+EXPORT_SYMBOL(bcm2836_arm_irqchip_spin_gpu_irq);
-+
-+#endif
-+
- static struct irq_chip bcm2836_arm_irqchip_gpu = {
- .name = "bcm2836-gpu",
- .irq_mask = bcm2836_arm_irqchip_mask_gpu_irq,