linux-kernel - [PATCH V7 0/2] genirq: arm64: perf: support for percpu pmu interrupt

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1386151791-4881-1-git-send-email-vkale@apm.com>
Date:	Wed,  4 Dec 2013 15:39:49 +0530
From:	Vinayak Kale <vkale@....com>
To:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:	tglx@...utronix.de, will.deacon@....com, patches@....com,
	jcm@...hat.com, sboyd@...eaurora.org, marc.zyngier@....com,
	Vinayak Kale <vkale@....com>
Subject: [PATCH V7 0/2] genirq: arm64: perf: support for percpu pmu interrupt

This patch series adds support to handle interrupt registration/deregistration
in arm64 pmu driver when pmu interrupt type is percpu.

Changelog:
V7:
* In arm64 pmu driver: Instead of passing 'struct arm_pmu' pointer, pass the
  irq number directly to armpmu_[enable/disable]_percpu_irq().
  Clean-up the percpu active irq cpumask set/clear. 

V6:
* In arm64 pmu driver: Use macro 'IRQ_TYPE_NONE' while passing irq type value
  to enable_percpu_irq(). Change 'irqs' etc variables as unsigned, modify the
  check for 'irqs' inside armpmu_[release/reserve]_hardware().

V5:
* In irqdesc.h: Added Chris Smith's sign-off.
  In arm64 pmu driver: Handle the invalid irq-0 case for platform_get_irq().

V4:
* In arm64 pmu driver: Avoid using irq_to_desc() to check validity of irq.

V3:
* Remove validity check for 'desc' from accessor function in irqdesc.h .
  Instead, check the irq 'desc' validity in arm64 pmu driver.

V2:
* To determine whether an IRQ is percpu or not, added an accessor function in
  irqdesc.h . This approach was used by Chris Smith here[1] for similar changes
  in arm pmu driver.
* In arm64 pmu driver: Got rid of unnecessary pointer typecastings.

[1] http://lkml.indiana.edu/hypermail/linux/kernel/1207.3/02955.html

Vinayak Kale (2):
  genirq: Add an accessor for IRQ_PER_CPU flag
  arm64: perf: add support for percpu pmu interrupt

 arch/arm64/kernel/perf_event.c |  108 +++++++++++++++++++++++++++++-----------
 include/linux/irqdesc.h        |    8 +++
 2 files changed, 86 insertions(+), 30 deletions(-)

-- 
1.7.9.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/