brcm2708: rename target to bcm27xx
[openwrt/openwrt.git] / target / linux / brcm2708 / patches-4.19 / 950-0093-ARM64-Round-Robin-dispatch-IRQs-between-CPUs.patch
diff --git a/target/linux/brcm2708/patches-4.19/950-0093-ARM64-Round-Robin-dispatch-IRQs-between-CPUs.patch b/target/linux/brcm2708/patches-4.19/950-0093-ARM64-Round-Robin-dispatch-IRQs-between-CPUs.patch
deleted file mode 100644 (file)
index 235a72f..0000000
+++ /dev/null
@@ -1,72 +0,0 @@
-From 3a9f3c695a95d3c34a360e9a95bccce37806c952 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
-@@ -162,10 +162,23 @@ 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
-@@ -95,6 +95,27 @@ 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,