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authorLinus Torvalds <torvalds@linux-foundation.org>2017-09-04 17:43:56 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-04 17:43:56 -0700
commit24e700e291d52bd200212487e2b654c0aa3f07a2 (patch)
tree56dfa9d5cdf5f753abbaac91dd68295e32ad2d85 /arch/x86/include/asm/trace/common.h
parentf57091767add2b79d76aac41b83b192d8ba1dce7 (diff)
parentc6ef89421e236d75693ae968d80d44a52409889d (diff)
Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 apic updates from Thomas Gleixner: "This update provides: - Cleanup of the IDT management including the removal of the extra tracing IDT. A first step to cleanup the vector management code. - The removal of the paravirt op adjust_exception_frame. This is a XEN specific issue, but merged through this branch to avoid nasty merge collisions - Prevent dmesg spam about the TSC DEADLINE bug, when the CPU has disabled the TSC DEADLINE timer in CPUID. - Adjust a debug message in the ioapic code to print out the information correctly" * 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits) x86/idt: Fix the X86_TRAP_BP gate x86/xen: Get rid of paravirt op adjust_exception_frame x86/eisa: Add missing include x86/idt: Remove superfluous ALIGNment x86/apic: Silence "FW_BUG TSC_DEADLINE disabled due to Errata" on CPUs without the feature x86/idt: Remove the tracing IDT leftovers x86/idt: Hide set_intr_gate() x86/idt: Simplify alloc_intr_gate() x86/idt: Deinline setup functions x86/idt: Remove unused functions/inlines x86/idt: Move interrupt gate initialization to IDT code x86/idt: Move APIC gate initialization to tables x86/idt: Move regular trap init to tables x86/idt: Move IST stack based traps to table init x86/idt: Move debug stack init to table based x86/idt: Switch early trap init to IDT tables x86/idt: Prepare for table based init x86/idt: Move early IDT setup out of 32-bit asm x86/idt: Move early IDT handler setup to IDT code x86/idt: Consolidate IDT invalidation ...
Diffstat (limited to 'arch/x86/include/asm/trace/common.h')
-rw-r--r--arch/x86/include/asm/trace/common.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/x86/include/asm/trace/common.h b/arch/x86/include/asm/trace/common.h
new file mode 100644
index 000000000000..57c8da027d99
--- /dev/null
+++ b/arch/x86/include/asm/trace/common.h
@@ -0,0 +1,16 @@
+#ifndef _ASM_TRACE_COMMON_H
+#define _ASM_TRACE_COMMON_H
+
+#ifdef CONFIG_TRACING
+DECLARE_STATIC_KEY_FALSE(trace_pagefault_key);
+#define trace_pagefault_enabled() \
+ static_branch_unlikely(&trace_pagefault_key)
+DECLARE_STATIC_KEY_FALSE(trace_resched_ipi_key);
+#define trace_resched_ipi_enabled() \
+ static_branch_unlikely(&trace_resched_ipi_key)
+#else
+static inline bool trace_pagefault_enabled(void) { return false; }
+static inline bool trace_resched_ipi_enabled(void) { return false; }
+#endif
+
+#endif