diff options
author | Stijn Segers <francesco.borromini@inventati.org> | 2017-05-24 22:39:28 +0200 |
---|---|---|
committer | Hauke Mehrtens <hauke@hauke-m.de> | 2017-05-24 22:47:01 +0200 |
commit | 215c1d05b8bb7b99cc8c40a877f649c5b1c15198 (patch) | |
tree | e44256447d81a6ca36a1c616689494b12a83bce4 /target/linux/generic/patches-4.4/062-01-MIPS-Introduce-irq_stack.patch | |
parent | d1a0fc3ec8e5323e95bec8db581bc7758aed783f (diff) | |
download | upstream-215c1d05b8bb7b99cc8c40a877f649c5b1c15198.tar.gz upstream-215c1d05b8bb7b99cc8c40a877f649c5b1c15198.tar.bz2 upstream-215c1d05b8bb7b99cc8c40a877f649c5b1c15198.zip |
kernel: update kernel 4.4 to 4.4.69
Bump the 17.01 tree kernel to 4.4.69. Trunk 4.4 and 17.01 4.4 have diverged, talked this
through with jow, he was okay with a clean diff against 17.01 and not a backported trunk
patch.
The following patches were applied upstream:
* 062-[1-6]-MIPS-* series
* 042-0004-mtd-bcm47xxpart-fix-parsing-first-block
Reintroduced lantiq/patches-4.4/0050-MIPS-Lantiq-Fix-cascaded-IRQ-setup, as
it was incorrectly included upstream thus dropped from LEDE, but subsequently
reverted upstream. Thanks to Kevin Darbyshire-Bryant for pointing me to it.
Compile-tested on: ar71xx, ramips/mt7621, x86/64.
Run-tested on: ar71xx, ramips/mt7621, x86/64.
Signed-off-by: Stijn Segers <francesco.borromini@inventati.org>
Diffstat (limited to 'target/linux/generic/patches-4.4/062-01-MIPS-Introduce-irq_stack.patch')
-rw-r--r-- | target/linux/generic/patches-4.4/062-01-MIPS-Introduce-irq_stack.patch | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/target/linux/generic/patches-4.4/062-01-MIPS-Introduce-irq_stack.patch b/target/linux/generic/patches-4.4/062-01-MIPS-Introduce-irq_stack.patch deleted file mode 100644 index 2a929aa7e1..0000000000 --- a/target/linux/generic/patches-4.4/062-01-MIPS-Introduce-irq_stack.patch +++ /dev/null @@ -1,70 +0,0 @@ -From: Matt Redfearn <matt.redfearn@imgtec.com> -Date: Mon, 19 Dec 2016 14:20:56 +0000 -Subject: [PATCH] MIPS: Introduce irq_stack - -Allocate a per-cpu irq stack for use within interrupt handlers. - -Also add a utility function on_irq_stack to determine if a given stack -pointer is within the irq stack for that cpu. - -Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com> ---- - ---- a/arch/mips/include/asm/irq.h -+++ b/arch/mips/include/asm/irq.h -@@ -17,6 +17,18 @@ - - #include <irq.h> - -+#define IRQ_STACK_SIZE THREAD_SIZE -+ -+extern void *irq_stack[NR_CPUS]; -+ -+static inline bool on_irq_stack(int cpu, unsigned long sp) -+{ -+ unsigned long low = (unsigned long)irq_stack[cpu]; -+ unsigned long high = low + IRQ_STACK_SIZE; -+ -+ return (low <= sp && sp <= high); -+} -+ - #ifdef CONFIG_I8259 - static inline int irq_canonicalize(int irq) - { ---- a/arch/mips/kernel/asm-offsets.c -+++ b/arch/mips/kernel/asm-offsets.c -@@ -101,6 +101,7 @@ void output_thread_info_defines(void) - OFFSET(TI_REGS, thread_info, regs); - DEFINE(_THREAD_SIZE, THREAD_SIZE); - DEFINE(_THREAD_MASK, THREAD_MASK); -+ DEFINE(_IRQ_STACK_SIZE, IRQ_STACK_SIZE); - BLANK(); - } - ---- a/arch/mips/kernel/irq.c -+++ b/arch/mips/kernel/irq.c -@@ -25,6 +25,8 @@ - #include <linux/atomic.h> - #include <asm/uaccess.h> - -+void *irq_stack[NR_CPUS]; -+ - /* - * 'what should we do if we get a hw irq event on an illegal vector'. - * each architecture has to answer this themselves. -@@ -55,6 +57,15 @@ void __init init_IRQ(void) - irq_set_noprobe(i); - - arch_init_irq(); -+ -+ for_each_possible_cpu(i) { -+ int irq_pages = IRQ_STACK_SIZE / PAGE_SIZE; -+ void *s = (void *)__get_free_pages(GFP_KERNEL, irq_pages); -+ -+ irq_stack[i] = s; -+ pr_debug("CPU%d IRQ stack at 0x%p - 0x%p\n", i, -+ irq_stack[i], irq_stack[i] + IRQ_STACK_SIZE); -+ } - } - - #ifdef CONFIG_DEBUG_STACKOVERFLOW |