From: Robert Richter <robert.richter@amd.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>,
Stephane Eranian <eranian@google.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
LKML <linux-kernel@vger.kernel.org>,
Robert Richter <robert.richter@amd.com>
Subject: [PATCH 07/12] perf/x86-ibs: Rename some variables
Date: Mon, 2 Apr 2012 20:19:13 +0200 [thread overview]
Message-ID: <1333390758-10893-8-git-send-email-robert.richter@amd.com> (raw)
In-Reply-To: <1333390758-10893-1-git-send-email-robert.richter@amd.com>
Simple patch that just renames some variables for better
understanding.
Signed-off-by: Robert Richter <robert.richter@amd.com>
---
arch/x86/kernel/cpu/perf_event_amd_ibs.c | 10 +++++-----
1 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/x86/kernel/cpu/perf_event_amd_ibs.c b/arch/x86/kernel/cpu/perf_event_amd_ibs.c
index 05a359f..6591b77 100644
--- a/arch/x86/kernel/cpu/perf_event_amd_ibs.c
+++ b/arch/x86/kernel/cpu/perf_event_amd_ibs.c
@@ -62,7 +62,7 @@ struct perf_ibs_data {
};
static int
-perf_event_set_period(struct hw_perf_event *hwc, u64 min, u64 max, u64 *count)
+perf_event_set_period(struct hw_perf_event *hwc, u64 min, u64 max, u64 *hw_period)
{
s64 left = local64_read(&hwc->period_left);
s64 period = hwc->sample_period;
@@ -91,7 +91,7 @@ perf_event_set_period(struct hw_perf_event *hwc, u64 min, u64 max, u64 *count)
if (left > max)
left = max;
- *count = (u64)left;
+ *hw_period = (u64)left;
return overflow;
}
@@ -264,13 +264,13 @@ static int perf_ibs_init(struct perf_event *event)
static int perf_ibs_set_period(struct perf_ibs *perf_ibs,
struct hw_perf_event *hwc, u64 *period)
{
- int ret;
+ int overflow;
/* ignore lower 4 bits in min count: */
- ret = perf_event_set_period(hwc, 1<<4, perf_ibs->max_period, period);
+ overflow = perf_event_set_period(hwc, 1<<4, perf_ibs->max_period, period);
local64_set(&hwc->prev_count, 0);
- return ret;
+ return overflow;
}
static u64 get_ibs_fetch_count(u64 config)
--
1.7.8.4
next prev parent reply other threads:[~2012-04-02 18:20 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-02 18:19 [PATCH 00/12] perf/x86-ibs: Precise event sampling with IBS for AMD CPUs Robert Richter
2012-04-02 18:19 ` [PATCH 01/12] perf/x86-ibs: Fix update of period Robert Richter
2012-05-09 14:29 ` [tip:perf/core] " tip-bot for Robert Richter
2012-04-02 18:19 ` [PATCH 02/12] perf: Pass last sampling period to perf_sample_data_init() Robert Richter
2012-05-09 14:30 ` [tip:perf/core] " tip-bot for Robert Richter
2012-04-02 18:19 ` [PATCH 03/12] perf/x86-ibs: Enable ibs op micro-ops counting mode Robert Richter
2012-05-09 14:31 ` [tip:perf/core] " tip-bot for Robert Richter
2012-04-02 18:19 ` [PATCH 04/12] perf/x86-ibs: Fix frequency profiling Robert Richter
2012-05-09 14:32 ` [tip:perf/core] " tip-bot for Robert Richter
2012-04-02 18:19 ` [PATCH 05/12] perf/x86-ibs: Take instruction pointer from ibs sample Robert Richter
2012-05-09 14:33 ` [tip:perf/core] " tip-bot for Robert Richter
2012-04-02 18:19 ` [PATCH 06/12] perf/x86-ibs: Precise event sampling with IBS for AMD CPUs Robert Richter
2012-04-14 10:21 ` Peter Zijlstra
2012-04-23 9:56 ` Robert Richter
2012-04-27 12:34 ` Robert Richter
2012-04-27 12:39 ` Stephane Eranian
2012-04-27 12:54 ` Robert Richter
2012-04-27 13:10 ` Stephane Eranian
2012-04-27 15:18 ` Robert Richter
2012-04-27 15:30 ` Peter Zijlstra
2012-04-27 15:57 ` Stephane Eranian
2012-04-27 15:30 ` Peter Zijlstra
2012-04-27 16:09 ` Robert Richter
2012-04-27 16:21 ` Peter Zijlstra
2012-04-27 16:23 ` Stephane Eranian
2012-04-14 10:22 ` Peter Zijlstra
2012-04-23 8:41 ` Robert Richter
2012-04-23 10:36 ` Peter Zijlstra
2012-04-14 10:24 ` Peter Zijlstra
2012-04-23 10:08 ` Robert Richter
2012-05-02 10:33 ` [PATCH v2] " Robert Richter
2012-05-02 11:14 ` Peter Zijlstra
2012-05-04 17:53 ` Peter Zijlstra
2012-05-09 14:34 ` [tip:perf/core] " tip-bot for Robert Richter
2012-04-02 18:19 ` Robert Richter [this message]
2012-05-09 14:34 ` [tip:perf/core] perf/x86-ibs: Rename some variables tip-bot for Robert Richter
2012-04-02 18:19 ` [PATCH 08/12] perf/x86-ibs: Trigger overflow if remaining period is too small Robert Richter
2012-05-09 14:35 ` [tip:perf/core] " tip-bot for Robert Richter
2012-04-02 18:19 ` [PATCH 09/12] perf/x86-ibs: Extend hw period that triggers overflow Robert Richter
2012-05-09 14:36 ` [tip:perf/core] " tip-bot for Robert Richter
2012-04-02 18:19 ` [PATCH 10/12] perf/x86-ibs: Implement workaround for IBS erratum #420 Robert Richter
2012-05-09 14:37 ` [tip:perf/core] " tip-bot for Robert Richter
2012-04-02 18:19 ` [PATCH 11/12] perf/x86-ibs: Catch spurious interrupts after stopping ibs Robert Richter
2012-05-09 14:38 ` [tip:perf/core] perf/x86-ibs: Catch spurious interrupts after stopping IBS tip-bot for Robert Richter
2012-04-02 18:19 ` [PATCH 12/12] perf/x86-ibs: Fix usage of IBS op current count Robert Richter
2012-05-09 14:39 ` [tip:perf/core] " tip-bot for Robert Richter
2012-04-02 19:11 ` [PATCH 00/12] perf/x86-ibs: Precise event sampling with IBS for AMD CPUs Ingo Molnar
2012-04-03 10:48 ` Robert Richter
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