linux-kernel - linux-next: manual merge of the arm-soc tree with the arm-perf tree

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Date: Wed, 3 Jan 2024 10:03:24 +1100
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Olof Johansson <olof@...om.net>, Arnd Bergmann <arnd@...db.de>, Will
 Deacon <will@...nel.org>
Cc: ARM <linux-arm-kernel@...ts.infradead.org>, Anshuman Khandual
 <anshuman.khandual@....com>, Linus Walleij <linus.walleij@...aro.org>,
 Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Linux Next
 Mailing List <linux-next@...r.kernel.org>
Subject: linux-next: manual merge of the arm-soc tree with the arm-perf tree

Hi all,

Today's linux-next merge of the arm-soc tree got a conflict in:

  arch/arm/kernel/perf_event_v6.c

between commit:

  5cd7da19cb97 ("arm: perf: Remove PMU locking")

from the arm-perf tree and commit:

  ced296f63635 ("ARM: Delete ARM11MPCore perf leftovers")

from the arm-soc tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc arch/arm/kernel/perf_event_v6.c
index 8fc080c9e4fb,0cbf46233d6b..000000000000
--- a/arch/arm/kernel/perf_event_v6.c
+++ b/arch/arm/kernel/perf_event_v6.c
@@@ -436,35 -386,9 +373,8 @@@ static void armv6pmu_disable_event(stru
  	val &= ~mask;
  	val |= evt;
  	armv6_pmcr_write(val);
 -	raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
  }
  
- static void armv6mpcore_pmu_disable_event(struct perf_event *event)
- {
- 	unsigned long val, mask, evt = 0;
- 	struct hw_perf_event *hwc = &event->hw;
- 	int idx = hwc->idx;
- 
- 	if (ARMV6_CYCLE_COUNTER == idx) {
- 		mask	= ARMV6_PMCR_CCOUNT_IEN;
- 	} else if (ARMV6_COUNTER0 == idx) {
- 		mask	= ARMV6_PMCR_COUNT0_IEN;
- 	} else if (ARMV6_COUNTER1 == idx) {
- 		mask	= ARMV6_PMCR_COUNT1_IEN;
- 	} else {
- 		WARN_ONCE(1, "invalid counter number (%d)\n", idx);
- 		return;
- 	}
- 
- 	/*
- 	 * Unlike UP ARMv6, we don't have a way of stopping the counters. We
- 	 * simply disable the interrupt reporting.
- 	 */
- 	val = armv6_pmcr_read();
- 	val &= ~mask;
- 	val |= evt;
- 	armv6_pmcr_write(val);
- }
- 
  static int armv6_map_event(struct perf_event *event)
  {
  	return armpmu_map_event(event, &armv6_perf_map,

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