linux-kernel - [PATCH v2 0/2] perf/arm-cmn: Add support for tertiary match group

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Message-ID: <20240307230929.6233-1-ilkka@os.amperecomputing.com>
Date: Thu,  7 Mar 2024 15:09:27 -0800
From: Ilkka Koskinen <ilkka@...amperecomputing.com>
To: Robin Murphy <robin.murphy@....com>,
	Will Deacon <will@...nel.org>
Cc: Mark Rutland <mark.rutland@....com>,
	Jing Zhang <renyu.zj@...ux.alibaba.com>,
	Ilkka Koskinen <ilkka@...amperecomputing.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 0/2] perf/arm-cmn: Add support for tertiary match group

Tertiary match group was added to CMN-650 and newer implementations.
This patchset makes the parameters model specific to support properly
various models. Also, wp_config registers and filter groups numbers are
decoupled to enable the new match group.

v2:
	* Use bitmap to track which WPs/DTMs are used by the event
	* Dropped model specific parameters
	* Addressed other Robin's comments regarding to sysfs, sanity-check
	  of wp arguments, and wp_combine check

v1:
	https://lore.kernel.org/all/20240126221215.1537377-1-ilkka@os.amperecomputing.com/

Ilkka Koskinen (2):
  perf/arm-cmn: Decouple wp_config registers from filter group number
  perf/arm-cmn: Enable support for tertiary match group

 drivers/perf/arm-cmn.c | 144 +++++++++++++++++++++++++++++++++--------
 1 file changed, 118 insertions(+), 26 deletions(-)

-- 
2.43.2