From: "tip-bot2 for Kan Liang" <tip-bot2@linutronix.de>
To: linux-tip-commits@vger.kernel.org
Cc: Kan Liang <kan.liang@linux.intel.com>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>,
Andi Kleen <ak@linux.intel.com>,
x86@kernel.org, linux-kernel@vger.kernel.org
Subject: [tip: perf/core] perf/x86/intel: Factor out intel_pmu_check_num_counters
Date: Tue, 20 Apr 2021 10:46:46 -0000 [thread overview]
Message-ID: <161891560610.29796.15047527697144952551.tip-bot2@tip-bot2> (raw)
In-Reply-To: <1618237865-33448-12-git-send-email-kan.liang@linux.intel.com>
The following commit has been merged into the perf/core branch of tip:
Commit-ID: b8c4d1a87610ba20da1abddb7aacbde0b2817c1a
Gitweb: https://git.kernel.org/tip/b8c4d1a87610ba20da1abddb7aacbde0b2817c1a
Author: Kan Liang <kan.liang@linux.intel.com>
AuthorDate: Mon, 12 Apr 2021 07:30:51 -07:00
Committer: Peter Zijlstra <peterz@infradead.org>
CommitterDate: Mon, 19 Apr 2021 20:03:26 +02:00
perf/x86/intel: Factor out intel_pmu_check_num_counters
Each Hybrid PMU has to check its own number of counters and mask fixed
counters before registration.
The intel_pmu_check_num_counters will be reused later to check the
number of the counters for each hybrid PMU.
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Link: https://lkml.kernel.org/r/1618237865-33448-12-git-send-email-kan.liang@linux.intel.com
---
arch/x86/events/intel/core.c | 38 ++++++++++++++++++++++-------------
1 file changed, 24 insertions(+), 14 deletions(-)
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index f727aa5..d7e2021 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -5064,6 +5064,26 @@ static const struct attribute_group *attr_update[] = {
static struct attribute *empty_attrs;
+static void intel_pmu_check_num_counters(int *num_counters,
+ int *num_counters_fixed,
+ u64 *intel_ctrl, u64 fixed_mask)
+{
+ if (*num_counters > INTEL_PMC_MAX_GENERIC) {
+ WARN(1, KERN_ERR "hw perf events %d > max(%d), clipping!",
+ *num_counters, INTEL_PMC_MAX_GENERIC);
+ *num_counters = INTEL_PMC_MAX_GENERIC;
+ }
+ *intel_ctrl = (1ULL << *num_counters) - 1;
+
+ if (*num_counters_fixed > INTEL_PMC_MAX_FIXED) {
+ WARN(1, KERN_ERR "hw perf events fixed %d > max(%d), clipping!",
+ *num_counters_fixed, INTEL_PMC_MAX_FIXED);
+ *num_counters_fixed = INTEL_PMC_MAX_FIXED;
+ }
+
+ *intel_ctrl |= fixed_mask << INTEL_PMC_IDX_FIXED;
+}
+
__init int intel_pmu_init(void)
{
struct attribute **extra_skl_attr = &empty_attrs;
@@ -5703,20 +5723,10 @@ __init int intel_pmu_init(void)
x86_pmu.attr_update = attr_update;
- if (x86_pmu.num_counters > INTEL_PMC_MAX_GENERIC) {
- WARN(1, KERN_ERR "hw perf events %d > max(%d), clipping!",
- x86_pmu.num_counters, INTEL_PMC_MAX_GENERIC);
- x86_pmu.num_counters = INTEL_PMC_MAX_GENERIC;
- }
- x86_pmu.intel_ctrl = (1ULL << x86_pmu.num_counters) - 1;
-
- if (x86_pmu.num_counters_fixed > INTEL_PMC_MAX_FIXED) {
- WARN(1, KERN_ERR "hw perf events fixed %d > max(%d), clipping!",
- x86_pmu.num_counters_fixed, INTEL_PMC_MAX_FIXED);
- x86_pmu.num_counters_fixed = INTEL_PMC_MAX_FIXED;
- }
-
- x86_pmu.intel_ctrl |= (u64)fixed_mask << INTEL_PMC_IDX_FIXED;
+ intel_pmu_check_num_counters(&x86_pmu.num_counters,
+ &x86_pmu.num_counters_fixed,
+ &x86_pmu.intel_ctrl,
+ (u64)fixed_mask);
/* AnyThread may be deprecated on arch perfmon v5 or later */
if (x86_pmu.intel_cap.anythread_deprecated)
next prev parent reply other threads:[~2021-04-20 10:47 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-12 14:30 [PATCH V6 00/25] Add Alder Lake support for perf (kernel) kan.liang
2021-04-12 14:30 ` [PATCH V6 01/25] x86/cpufeatures: Enumerate Intel Hybrid Technology feature bit kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Ricardo Neri
2021-04-12 14:30 ` [PATCH V6 02/25] x86/cpu: Add helper function to get the type of the current hybrid CPU kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Ricardo Neri
2023-05-05 16:42 ` Dave Hansen
2023-05-10 18:18 ` Ricardo Neri
2023-05-10 18:33 ` Dave Hansen
2023-05-10 19:15 ` Luck, Tony
2023-05-10 23:56 ` Ricardo Neri
2021-04-12 14:30 ` [PATCH V6 03/25] perf/x86: Track pmu in per-CPU cpu_hw_events kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:30 ` [PATCH V6 04/25] perf/x86/intel: Hybrid PMU support for perf capabilities kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:30 ` [PATCH V6 05/25] perf/x86: Hybrid PMU support for intel_ctrl kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:30 ` [PATCH V6 06/25] perf/x86: Hybrid PMU support for counters kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:30 ` [PATCH V6 07/25] perf/x86: Hybrid PMU support for unconstrained kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:30 ` [PATCH V6 08/25] perf/x86: Hybrid PMU support for hardware cache event kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:30 ` [PATCH V6 09/25] perf/x86: Hybrid PMU support for event constraints kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:30 ` [PATCH V6 10/25] perf/x86: Hybrid PMU support for extra_regs kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:30 ` [PATCH V6 11/25] perf/x86/intel: Factor out intel_pmu_check_num_counters kan.liang
2021-04-20 10:46 ` tip-bot2 for Kan Liang [this message]
2021-04-12 14:30 ` [PATCH V6 12/25] perf/x86/intel: Factor out intel_pmu_check_event_constraints kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:30 ` [PATCH V6 13/25] perf/x86/intel: Factor out intel_pmu_check_extra_regs kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:30 ` [PATCH V6 14/25] perf/x86: Remove temporary pmu assignment in event_init kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:30 ` [PATCH V6 15/25] perf/x86: Factor out x86_pmu_show_pmu_cap kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:30 ` [PATCH V6 16/25] perf/x86: Register hybrid PMUs kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:30 ` [PATCH V6 17/25] perf/x86: Add structures for the attributes of Hybrid PMUs kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:30 ` [PATCH V6 18/25] perf/x86/intel: Add attr_update for " kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:30 ` [PATCH V6 19/25] perf/x86: Support filter_match callback kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:31 ` [PATCH V6 20/25] perf/x86/intel: Add Alder Lake Hybrid support kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:31 ` [PATCH V6 21/25] perf: Extend PERF_TYPE_HARDWARE and PERF_TYPE_HW_CACHE kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:31 ` [PATCH V6 22/25] perf/x86/intel/uncore: Add Alder Lake support kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:31 ` [PATCH V6 23/25] perf/x86/msr: Add Alder Lake CPU support kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:31 ` [PATCH V6 24/25] perf/x86/cstate: " kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Kan Liang
2021-04-12 14:31 ` [PATCH V6 25/25] perf/x86/rapl: Add support for Intel Alder Lake kan.liang
2021-04-20 10:46 ` [tip: perf/core] " tip-bot2 for Zhang Rui
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