openwrt/target/linux/brcm2708/patches-4.14/950-0103-ARM64-Round-Robin-dispatch-IRQs-between-CPUs.patch
Stijn Tintel f5919b65d4 brcm2708: add kernel 4.14 support
Patch generation process:
- rebase rpi/rpi-4.14.y on v4.14.89 from linux-stable
- git format-patch v4.14.89

Patches skipped during rebase:
- lan78xx: Read MAC address from DT if present
- lan78xx: Enable LEDs and auto-negotiation
- Revert "softirq: Let ksoftirqd do its job"
- sc16is7xx: Fix for multi-channel stall
- lan78xx: Ignore DT MAC address if already valid
- lan78xx: Simple patch to prevent some crashes
- tcp_write_queue_purge clears all the SKBs in the write queue
- Revert "lan78xx: Simple patch to prevent some crashes"
- lan78xx: Connect phy early
- Arm: mm: ftrace: Only set text back to ro after kernel has been marked ro
- Revert "Revert "softirq: Let ksoftirqd do its job""
- ASoC: cs4265: SOC_SINGLE register value error fix
- Revert "ASoC: cs4265: SOC_SINGLE register value error fix"
- Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends"
- Revert "Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends""

Patches dropped after rebase:
- net: Add non-mainline source for rtl8192cu wlan
- net: Fix rtl8192cu build errors on other platforms
- brcm: adds support for BCM43341 wifi
- brcmfmac: Mute expected startup 'errors'
- ARM64: Fix build break for RTL8187/RTL8192CU wifi
- ARM64: Enable RTL8187/RTL8192CU wifi in build config
- This is the driver for Sony CXD2880 DVB-T2/T tuner + demodulator
- brcmfmac: add CLM download support
- brcmfmac: request_firmware_direct is quieter
- Sets the BCDC priority to constant 0
- brcmfmac: Disable ARP offloading when promiscuous
- brcmfmac: Avoid possible out-of-bounds read
- brcmfmac: Delete redundant length check
- net: rtl8192cu: Normalize indentation
- net: rtl8192cu: Fix implicit fallthrough warnings
- Revert "Sets the BCDC priority to constant 0"
- media: cxd2880: Bump to match 4.18.y version
- media: cxd2880-spi: Bump to match 4.18.y version
- Revert "mm: alloc_contig: re-allow CMA to compact FS pages"
- Revert "Revert "mm: alloc_contig: re-allow CMA to compact FS pages""
- cxd2880: CXD2880_SPI_DRV should select DVB_CXD2880 with
  MEDIA_SUBDRV_AUTOSELECT
- 950-0421-HID-hid-bigbenff-driver-for-BigBen-Interactive-PS3OF.patch
- 950-0453-Add-hid-bigbenff-to-list-of-have_special_driver-for-.patch

Make I2C built-in instead of modular as in upstream defconfig; also the
easiest way to get MFD_ARIZONA enabled, which is required by
kmod-sound-soc-rpi-cirrus.
Add missing compatible strings from
4.9/960-add-rasbperrypi-compatible.patch, using upstream names for
compute modules.
Add extra patch to enable the LEDs on lan78xx.

Compile-tested: bcm2708, bcm2709, bcm2710 (with CONFIG_ALL_KMODS=y)
Runtime-tested: bcm2708, bcm2710

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2018-12-18 23:19:21 +02:00

73 lines
1.9 KiB
Diff

From 7f270d81a7a2bda471606d6334672c88354483e5 Mon Sep 17 00:00:00 2001
From: Michael Zoran <mzoran@crowfest.net>
Date: Sat, 14 Jan 2017 21:43:57 -0800
Subject: [PATCH 103/454] 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,