From 241771ef016b5c0c83cd7a4372a74321c973c1e6 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 3 Dec 2008 10:39:53 +0100 Subject: performance counters: x86 support Implement performance counters for x86 Intel CPUs. It's simplified right now: the PERFMON CPU feature is assumed, which is available in Core2 and later Intel CPUs. The design is flexible to be extended to more CPU types as well. Signed-off-by: Ingo Molnar --- arch/x86/include/asm/irq_vectors.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/x86/include/asm/irq_vectors.h') diff --git a/arch/x86/include/asm/irq_vectors.h b/arch/x86/include/asm/irq_vectors.h index 0005adb0f941..b8d277f1252f 100644 --- a/arch/x86/include/asm/irq_vectors.h +++ b/arch/x86/include/asm/irq_vectors.h @@ -86,6 +86,11 @@ */ #define LOCAL_TIMER_VECTOR 0xef +/* + * Performance monitoring interrupt vector: + */ +#define LOCAL_PERF_VECTOR 0xee + /* * First APIC vector available to drivers: (vectors 0x30-0xee) we * start at 0x31(0x41) to spread out vectors evenly between priority -- cgit v1.2.1 From 73ca2f8380311115723c7afe811f3ed1f0ba945e Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 16 Feb 2009 01:08:17 +0100 Subject: perfcounters: remove duplicate definition of LOCAL_PERF_VECTOR Signed-off-by: Ingo Molnar --- arch/x86/include/asm/irq_vectors.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'arch/x86/include/asm/irq_vectors.h') diff --git a/arch/x86/include/asm/irq_vectors.h b/arch/x86/include/asm/irq_vectors.h index b66b518ff000..b07278c55e9e 100644 --- a/arch/x86/include/asm/irq_vectors.h +++ b/arch/x86/include/asm/irq_vectors.h @@ -111,11 +111,6 @@ */ #define LOCAL_PERF_VECTOR 0xee -/* - * Performance monitoring interrupt vector: - */ -#define LOCAL_PERF_VECTOR 0xee - /* * First APIC vector available to drivers: (vectors 0x30-0xee) we * start at 0x31(0x41) to spread out vectors evenly between priority -- cgit v1.2.1 From b6276f353bf490add62dcf7db0ebd75baa3e1a37 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Mon, 6 Apr 2009 11:45:03 +0200 Subject: perf_counter: x86: self-IPI for pending work Implement set_perf_counter_pending() with a self-IPI so that it will run ASAP in a usable context. For now use a second IRQ vector, because the primary vector pokes the apic in funny ways that seem to confuse things. Signed-off-by: Peter Zijlstra Cc: Paul Mackerras Cc: Corey Ashford LKML-Reference: <20090406094517.724626696@chello.nl> Signed-off-by: Ingo Molnar --- arch/x86/include/asm/irq_vectors.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/x86/include/asm/irq_vectors.h') diff --git a/arch/x86/include/asm/irq_vectors.h b/arch/x86/include/asm/irq_vectors.h index 3cbd79bbb47c..545bb811ccb5 100644 --- a/arch/x86/include/asm/irq_vectors.h +++ b/arch/x86/include/asm/irq_vectors.h @@ -116,6 +116,11 @@ */ #define GENERIC_INTERRUPT_VECTOR 0xed +/* + * Performance monitoring pending work vector: + */ +#define LOCAL_PENDING_VECTOR 0xec + /* * First APIC vector available to drivers: (vectors 0x30-0xee) we * start at 0x31(0x41) to spread out vectors evenly between priority -- cgit v1.2.1 From a32881066e58346f2901afe0ebdfbf0c562877e5 Mon Sep 17 00:00:00 2001 From: Yong Wang Date: Wed, 3 Jun 2009 13:12:55 +0800 Subject: perf_counter/x86: Remove the IRQ (non-NMI) handling bits Remove the IRQ (non-NMI) handling bits as NMI will be used always. Signed-off-by: Yong Wang Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Corey Ashford Cc: Marcelo Tosatti Cc: Arnaldo Carvalho de Melo Cc: John Kacur LKML-Reference: <20090603051255.GA2791@ywang-moblin2.bj.intel.com> Signed-off-by: Ingo Molnar --- arch/x86/include/asm/irq_vectors.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'arch/x86/include/asm/irq_vectors.h') diff --git a/arch/x86/include/asm/irq_vectors.h b/arch/x86/include/asm/irq_vectors.h index 545bb811ccb5..4492e19f8391 100644 --- a/arch/x86/include/asm/irq_vectors.h +++ b/arch/x86/include/asm/irq_vectors.h @@ -106,11 +106,6 @@ */ #define LOCAL_TIMER_VECTOR 0xef -/* - * Performance monitoring interrupt vector: - */ -#define LOCAL_PERF_VECTOR 0xee - /* * Generic system vector for platform specific use */ -- cgit v1.2.1