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linux/debian/patches/patchset-pf/amd-rapl/0015-perf-x86-rapl-Remove-the-global-variable-rapl_msrs.patch

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From dbc0343069c8f86fad0d8d9075f70f79114ef10a Mon Sep 17 00:00:00 2001
From: Dhananjay Ugwekar <Dhananjay.Ugwekar@amd.com>
Date: Fri, 13 Sep 2024 15:47:59 +0000
Subject: perf/x86/rapl: Remove the global variable rapl_msrs
After making the rapl_model struct global, the rapl_msrs global
variable isn't needed, so remove it.
Also it will be cleaner when new per-core scope PMU is added. As we will
need to maintain two rapl_msrs array(one for per-core scope and one for
package scope PMU), inside the rapl_model struct.
Signed-off-by: Dhananjay Ugwekar <Dhananjay.Ugwekar@amd.com>
---
arch/x86/events/rapl.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
--- a/arch/x86/events/rapl.c
+++ b/arch/x86/events/rapl.c
@@ -137,7 +137,6 @@ static int rapl_pkg_hw_unit[NR_RAPL_PKG_
static struct rapl_pmus *rapl_pmus_pkg;
static unsigned int rapl_pkg_cntr_mask;
static u64 rapl_timer_ms;
-static struct perf_msr *rapl_msrs;
static struct rapl_model *rapl_model;
/*
@@ -376,7 +375,7 @@ static int rapl_pmu_event_init(struct pe
return -EINVAL;
event->pmu_private = rapl_pmu;
- event->hw.event_base = rapl_msrs[bit].msr;
+ event->hw.event_base = rapl_model->rapl_pkg_msrs[bit].msr;
event->hw.config = cfg;
event->hw.idx = bit;
@@ -813,9 +812,7 @@ static int __init rapl_pmu_init(void)
rapl_model = (struct rapl_model *) id->driver_data;
- rapl_msrs = rapl_model->rapl_pkg_msrs;
-
- rapl_pkg_cntr_mask = perf_msr_probe(rapl_msrs, PERF_RAPL_PKG_EVENTS_MAX,
+ rapl_pkg_cntr_mask = perf_msr_probe(rapl_model->rapl_pkg_msrs, PERF_RAPL_PKG_EVENTS_MAX,
false, (void *) &rapl_model->pkg_events);
ret = rapl_check_hw_unit();