GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-06-28 01:21:58 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

perf, x86: implement ARCH_PERFMON_EVENTSEL bit masks

Browse source 
ARCH_PERFMON_EVENTSEL bit masks are often used in the kernel. This
patch adds macros for the bit masks and removes local defines. The
function intel_pmu_raw_event() becomes x86_pmu_raw_event() which is
generic for x86 models and same also for p6. Duplicate code is
removed.

Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20100330092821.GH11907@erda.amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Robert Richter 2010-03-30 11:28:21 +02:00 • committed by Ingo Molnar
parent 948b1bb89a
commit a098f4484b
5 changed files with 43 additions and 87 deletions
Download patch file Download diff file Expand all files Collapse all files

19
arch/x86/kernel/cpu/perf_event.c
View file

@ -143,13 +143,21 @@ struct cpu_hw_events {
* Constraint on the Event code.
*/
#define INTEL_EVENT_CONSTRAINT(c, n) \
EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVTSEL_MASK)
EVENT_CONSTRAINT(c, n, ARCH_PERFMON_EVENTSEL_EVENT)
/*
* Constraint on the Event code + UMask + fixed-mask
*
* filter mask to validate fixed counter events.
* the following filters disqualify for fixed counters:
* - inv
* - edge
* - cnt-mask
* The other filters are supported by fixed counters.
* The any-thread option is supported starting with v3.
*/
#define FIXED_EVENT_CONSTRAINT(c, n) \
EVENT_CONSTRAINT(c, (1ULL << (32+n)), INTEL_ARCH_FIXED_MASK)
EVENT_CONSTRAINT(c, (1ULL << (32+n)), X86_RAW_EVENT_MASK)
/*
* Constraint on the Event code + UMask
@ -437,6 +445,11 @@ static int x86_hw_config(struct perf_event_attr *attr, struct hw_perf_event *hwc
return 0;
}
static u64 x86_pmu_raw_event(u64 hw_event)
{
return hw_event & X86_RAW_EVENT_MASK;
}
/*
* Setup the hardware configuration for a given attr_type
*/
@ -1427,7 +1440,7 @@ void __init init_hw_perf_events(void)
if (x86_pmu.event_constraints) {
for_each_event_constraint(c, x86_pmu.event_constraints) {
if (c->cmask != INTEL_ARCH_FIXED_MASK)
if (c->cmask != X86_RAW_EVENT_MASK)
continue;
c->idxmsk64 |= (1ULL << x86_pmu.num_counters) - 1;