lwn.git/arch/x86/oprofile/op_model_ppro.c, branch standardize-docs

x86/cpufeature: Remove cpu_has_arch_perfmon

2016-03-31T11:33:17+00:00

Use boot_cpu_has() instead. Signed-off-by: Borislav Petkov Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: oprofile-list@lists.sf.net Link: http://lkml.kernel.org/r/1459266123-21878-2-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar

oprofile, x86: Fix overflow and warning (commit 1d12d35)

2011-08-16T21:51:00+00:00

Following fixes for: 1d12d35 oprofile, x86: Convert memory allocation to static array Fix potential buffer overflow. Fix the following warning: arch/x86/oprofile/op_model_ppro.c: In function ‘ppro_check_ctrs’: arch/x86/oprofile/op_model_ppro.c:143: warning: label ‘out’ defined but not used Cc: Maarten Lankhorst Cc: Andi Kleen Signed-off-by: Robert Richter

oprofile, x86: Convert memory allocation to static array

2011-08-01T20:54:19+00:00

On -rt, allocators don't work from atomic context any more, and the maximum size of the array is known at compile time. Call trace on a -rt kernel: oprofile: using NMI interrupt. BUG: sleeping function called from invalid context at kernel/rtmutex.c:645 in_atomic(): 1, irqs_disabled(): 1, pid: 0, name: kworker/0:1 Pid: 0, comm: kworker/0:1 Tainted: G C 3.0.0-rt3-patser+ #39 Call Trace: [] __might_sleep+0xca/0xf0 [] rt_spin_lock+0x24/0x40 [] __kmalloc+0xc7/0x370 [] ? ppro_setup_ctrs+0x215/0x260 [oprofile] [] ? oprofile_cpu_notifier+0x60/0x60 [oprofile] [] ppro_setup_ctrs+0x215/0x260 [oprofile] [] ? oprofile_cpu_notifier+0x60/0x60 [oprofile] [] ? oprofile_cpu_notifier+0x60/0x60 [oprofile] [] nmi_cpu_setup+0xc4/0x110 [oprofile] [] generic_smp_call_function_interrupt+0x95/0x190 [] smp_call_function_interrupt+0x27/0x40 [] call_function_interrupt+0x13/0x20 [] ? plist_check_head+0x54/0xc0 [] ? intel_idle+0xc8/0x120 [] ? intel_idle+0xa7/0x120 [] cpuidle_idle_call+0xb0/0x230 [] cpu_idle+0x8b/0xe0 [] start_secondary+0x1d3/0x1d8 Signed-off-by: Maarten Lankhorst Signed-off-by: Robert Richter

x86: Replace uses of current_cpu_data with this_cpu ops

2010-12-30T11:22:03+00:00

Replace all uses of current_cpu_data with this_cpu operations on the per cpu structure cpu_info. The scala accesses are replaced with the matching this_cpu ops which results in smaller and more efficient code. In the long run, it might be a good idea to remove cpu_data() macro too and use per_cpu macro directly. tj: updated description Cc: Yinghai Lu Cc: Ingo Molnar Acked-by: H. Peter Anvin Acked-by: Tejun Heo Signed-off-by: Christoph Lameter Signed-off-by: Tejun Heo

Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2010-05-18T15:19:03+00:00

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (311 commits) perf tools: Add mode to build without newt support perf symbols: symbol inconsistency message should be done only at verbose=1 perf tui: Add explicit -lslang option perf options: Type check all the remaining OPT_ variants perf options: Type check OPT_BOOLEAN and fix the offenders perf options: Check v type in OPT_U?INTEGER perf options: Introduce OPT_UINTEGER perf tui: Add workaround for slang < 2.1.4 perf record: Fix bug mismatch with -c option definition perf options: Introduce OPT_U64 perf tui: Add help window to show key associations perf tui: Make <- exit menus too perf newt: Add single key shortcuts for zoom into DSO and threads perf newt: Exit browser unconditionally when CTRL+C, q or Q is pressed perf newt: Fix the 'A'/'a' shortcut for annotate perf newt: Make <- exit the ui_browser x86, perf: P4 PMU - fix counters management logic perf newt: Make <- zoom out filters perf report: Report number of events, not samples perf hist: Clarify events_stats fields usage ... Fix up trivial conflicts in kernel/fork.c and tools/perf/builtin-record.c

oprofile/x86: return -EBUSY if counters are already reserved

2010-05-04T09:35:28+00:00

In case a counter is already reserved by the watchdog or perf_event subsystem, oprofile ignored this counters silently. This case is handled now and oprofile_setup() now reports an error. Signed-off-by: Robert Richter

oprofile/x86: moving shutdown functions

2010-05-04T09:35:27+00:00

Moving some code in preparation of the next patch. Signed-off-by: Robert Richter

oprofile/x86: reserve counter msrs pairwise

2010-05-04T09:35:26+00:00

For AMD's and Intel's P6 generic performance counters have pairwise counter and control msrs. This patch changes the counter reservation in a way that both msrs must be registered. It joins some counter loops and also removes the unnecessary NUM_CONTROLS macro in the AMD implementation. Signed-off-by: Robert Richter

perf, x86: Undo some some _counter -> _event renames

2010-04-02T17:52:02+00:00

The big rename: cdd6c48 perf: Do the big rename: Performance Counters -> Performance Events accidentally renamed some members of stucts that were named after registers in the spec. To avoid confusion this patch reverts some changes. The related specs are MSR descriptions in AMD's BKDGs and the ARCHITECTURAL PERFORMANCE MONITORING section in the Intel 64 and IA-32 Architectures Software Developer's Manuals. This patch does: $ sed -i -e 's:num_events:num_counters:g' \ arch/x86/include/asm/perf_event.h \ arch/x86/kernel/cpu/perf_event_amd.c \ arch/x86/kernel/cpu/perf_event.c \ arch/x86/kernel/cpu/perf_event_intel.c \ arch/x86/kernel/cpu/perf_event_p6.c \ arch/x86/kernel/cpu/perf_event_p4.c \ arch/x86/oprofile/op_model_ppro.c $ sed -i -e 's:event_bits:cntval_bits:g' -e 's:event_mask:cntval_mask:g' \ arch/x86/kernel/cpu/perf_event_amd.c \ arch/x86/kernel/cpu/perf_event.c \ arch/x86/kernel/cpu/perf_event_intel.c \ arch/x86/kernel/cpu/perf_event_p6.c \ arch/x86/kernel/cpu/perf_event_p4.c Signed-off-by: Robert Richter Signed-off-by: Peter Zijlstra LKML-Reference: <1269880612-25800-2-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar

perf, x86: rename macro in ARCH_PERFMON_EVENTSEL_ENABLE

2010-03-01T13:21:23+00:00

For consistency reasons this patch renames ARCH_PERFMON_EVENTSEL0_ENABLE to ARCH_PERFMON_EVENTSEL_ENABLE. The following is performed: $ sed -i -e s/ARCH_PERFMON_EVENTSEL0_ENABLE/ARCH_PERFMON_EVENTSEL_ENABLE/g \ arch/x86/include/asm/perf_event.h arch/x86/kernel/cpu/perf_event.c \ arch/x86/kernel/cpu/perf_event_p6.c \ arch/x86/kernel/cpu/perfctr-watchdog.c \ arch/x86/oprofile/op_model_amd.c arch/x86/oprofile/op_model_ppro.c Signed-off-by: Robert Richter