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authorLinus Torvalds <torvalds@linux-foundation.org>2021-02-24 16:32:23 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-02-24 16:32:23 -0800
commit29c395c77a9a514c5857c45ceae2665e9bd99ac7 (patch)
treeeacced75a6641c17060456cbdcfaef797a66235a /kernel
parent4c48faba5b7f18fb53e4aeeb768932f17c9da1ed (diff)
parent724c8a23d589d8a002d2e39633c2f9a5a429616f (diff)
downloadlinux-29c395c77a9a514c5857c45ceae2665e9bd99ac7.tar.gz
Merge tag 'x86-entry-2021-02-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 irq entry updates from Thomas Gleixner: "The irq stack switching was moved out of the ASM entry code in course of the entry code consolidation. It ended up being suboptimal in various ways. This reworks the X86 irq stack handling: - Make the stack switching inline so the stackpointer manipulation is not longer at an easy to find place. - Get rid of the unnecessary indirect call. - Avoid the double stack switching in interrupt return and reuse the interrupt stack for softirq handling. - A objtool fix for CONFIG_FRAME_POINTER=y builds where it got confused about the stack pointer manipulation" * tag 'x86-entry-2021-02-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: objtool: Fix stack-swizzle for FRAME_POINTER=y um: Enforce the usage of asm-generic/softirq_stack.h x86/softirq/64: Inline do_softirq_own_stack() softirq: Move do_softirq_own_stack() to generic asm header softirq: Move __ARCH_HAS_DO_SOFTIRQ to Kconfig x86: Select CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK x86/softirq: Remove indirection in do_softirq_own_stack() x86/entry: Use run_sysvec_on_irqstack_cond() for XEN upcall x86/entry: Convert device interrupts to inline stack switching x86/entry: Convert system vectors to irq stack macro x86/irq: Provide macro for inlining irq stack switching x86/apic: Split out spurious handling code x86/irq/64: Adjust the per CPU irq stack pointer by 8 x86/irq: Sanitize irq stack tracking x86/entry: Fix instrumentation annotation
Diffstat (limited to 'kernel')
-rw-r--r--kernel/softirq.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 9d71046ea247..9908ec4a9bfe 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -26,6 +26,8 @@
#include <linux/tick.h>
#include <linux/irq.h>
+#include <asm/softirq_stack.h>
+
#define CREATE_TRACE_POINTS
#include <trace/events/irq.h>