kernel: bump 4.14 to 4.14.126

Refreshed all patches.

Altered patches:
- 816-pcie-support-layerscape.patch

This patch also restores the initial implementation
of the ath79 perfcount IRQ issue. (78ee6b1a40b5)
It was wrongfully backported upstream initially and got reverted now.

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>

1 files changed, 110 insertions, 0 deletions

diff --git a/target/linux/generic/pending-4.14/103-MIPS-perf-ath79-Fix-perfcount-IRQ-assignment.patch b/target/linux/generic/pending-4.14/103-MIPS-perf-ath79-Fix-perfcount-IRQ-assignment.patch
new file mode 100644
index 0000000000..1990e87055
--- /dev/null
+++ b/target/linux/generic/pending-4.14/103-MIPS-perf-ath79-Fix-perfcount-IRQ-assignment.patch
@@ -0,0 +1,110 @@
+From 852a88f35f4b7e5ebb717fed3c3a3330d5ad4336 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Petr=20=C5=A0tetiar?= <ynezz@true.cz>
+Date: Wed, 10 Apr 2019 16:43:27 +0200
+Subject: [PATCH v2] MIPS: perf: ath79: Fix perfcount IRQ assignment
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Currently it's not possible to use perf on ath79 due to genirq flags
+mismatch happening on static virtual IRQ 13 which is used for
+performance counters hardware IRQ 5.
+
+On TP-Link Archer C7v5:
+
+           CPU0
+  2:          0      MIPS   2  ath9k
+  4:        318      MIPS   4  19000000.eth
+  7:      55034      MIPS   7  timer
+  8:       1236      MISC   3  ttyS0
+ 12:          0      INTC   1  ehci_hcd:usb1
+ 13:          0  gpio-ath79   2  keys
+ 14:          0  gpio-ath79   5  keys
+ 15:         31  AR724X PCI    1  ath10k_pci
+
+ $ perf top
+ genirq: Flags mismatch irq 13. 00014c83 (mips_perf_pmu) vs. 00002003 (keys)
+
+On TP-Link Archer C7v4:
+
+         CPU0
+  4:          0      MIPS   4  19000000.eth
+  5:       7135      MIPS   5  1a000000.eth
+  7:      98379      MIPS   7  timer
+  8:         30      MISC   3  ttyS0
+ 12:      90028      INTC   0  ath9k
+ 13:       5520      INTC   1  ehci_hcd:usb1
+ 14:       4623      INTC   2  ehci_hcd:usb2
+ 15:      32844  AR724X PCI    1  ath10k_pci
+ 16:          0  gpio-ath79  16  keys
+ 23:          0  gpio-ath79  23  keys
+
+ $ perf top
+ genirq: Flags mismatch irq 13. 00014c80 (mips_perf_pmu) vs. 00000080 (ehci_hcd:usb1)
+
+This problem is happening, because currently statically assigned virtual
+IRQ 13 for performance counters is not claimed during the initialization
+of MIPS PMU during the bootup, so the IRQ subsystem doesn't know, that
+this interrupt isn't available for further use.
+
+So this patch fixes the issue by simply booking hardware IRQ 5 for MIPS PMU.
+
+Tested-by: Kevin 'ldir' Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
+Signed-off-by: Petr Štetiar <ynezz@true.cz>
+---
+
+Changes since v1:
+
+ I've incorporated two comments which I've received on IRC from blogic and
+ I've also reworded the commit message to match the changes in v2 of this
+ patch.
+
+  * use actual hardware perfcount IRQ 5 instead of the virtual IRQ 13
+  * dropped the CONFIG_PERF_EVENTS ifdef around irq_create_mapping
+
+ arch/mips/ath79/setup.c          |  6 ------
+ drivers/irqchip/irq-ath79-misc.c | 11 +++++++++++
+ 2 files changed, 11 insertions(+), 6 deletions(-)
+
+--- a/arch/mips/ath79/setup.c
++++ b/arch/mips/ath79/setup.c
+@@ -183,12 +183,6 @@ const char *get_system_type(void)
+ 	return ath79_sys_type;
+ }
+ 
+-int get_c0_perfcount_int(void)
+-{
+-	return ATH79_MISC_IRQ(5);
+-}
+-EXPORT_SYMBOL_GPL(get_c0_perfcount_int);
+-
+ unsigned int get_c0_compare_int(void)
+ {
+ 	return CP0_LEGACY_COMPARE_IRQ;
+--- a/drivers/irqchip/irq-ath79-misc.c
++++ b/drivers/irqchip/irq-ath79-misc.c
+@@ -22,6 +22,15 @@
+ #define AR71XX_RESET_REG_MISC_INT_ENABLE	4
+ 
+ #define ATH79_MISC_IRQ_COUNT			32
++#define ATH79_MISC_PERF_IRQ			5
++
++static int ath79_perfcount_irq;
++
++int get_c0_perfcount_int(void)
++{
++	return ath79_perfcount_irq;
++}
++EXPORT_SYMBOL_GPL(get_c0_perfcount_int);
+ 
+ static void ath79_misc_irq_handler(struct irq_desc *desc)
+ {
+@@ -113,6 +122,8 @@ static void __init ath79_misc_intc_domai
+ {
+ 	void __iomem *base = domain->host_data;
+ 
++	ath79_perfcount_irq = irq_create_mapping(domain, ATH79_MISC_PERF_IRQ);
++
+ 	/* Disable and clear all interrupts */
+ 	__raw_writel(0, base + AR71XX_RESET_REG_MISC_INT_ENABLE);
+ 	__raw_writel(0, base + AR71XX_RESET_REG_MISC_INT_STATUS);