Re: [PATCH v2 7/8] ARM: perf: Allow the use of the PMUv3 driver on 32bit ARM

From: Marc Zyngier <redacted>

The only thing stopping the PMUv3 driver from compiling on 32bit
is the lack of defined system registers names and the handful of
required helpers.

This is easily solved by providing the sysreg accessors and updating
the Kconfig entry.

Signed-off-by: Marc Zyngier <redacted>
Co-developed-by: Zaid Al-Bassam <redacted>
Signed-off-by: Zaid Al-Bassam <redacted>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230126204444.2204061-8-zalbassam@google.com (local)
---
 arch/arm/include/asm/arm_pmuv3.h | 259 +++++++++++++++++++++++++++++++
 drivers/perf/Kconfig             |   5 +-
 drivers/perf/arm_pmuv3.c         |   5 +-
 3 files changed, 265 insertions(+), 4 deletions(-)
 create mode 100644 arch/arm/include/asm/arm_pmuv3.h

diff --git a/arch/arm/include/asm/arm_pmuv3.h b/arch/arm/include/asm/arm_pmuv3.h
new file mode 100644
index 0000000000000..b2d9dc9dedbac
--- /dev/null
+++ b/arch/arm/include/asm/arm_pmuv3.h

@@ -0,0 +1,259 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2012 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */