[PATCH 0/2] Support SSTC while PM operations

From: Nick Hu <nick.hu@sifive.com>
To: greentime.hu@sifive.com, zong.li@sifive.com,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Pavel Machek <pavel@ucw.cz>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Andrew Jones <ajones@ventanamicro.com>,
	Samuel Holland <samuel.holland@sifive.com>,
	Conor Dooley <conor.dooley@microchip.com>,
	Sunil V L <sunilvl@ventanamicro.com>,
	Nick Hu <nick.hu@sifive.com>,
	linux-pm@vger.kernel.org, linux-riscv@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH 0/2] Support SSTC while PM operations
Date: Thu, 29 Aug 2024 11:38:58 +0800	[thread overview]
Message-ID: <20240829033904.477200-1-nick.hu@sifive.com> (raw)

When the cpu is going to be hotplug, stop the stimecmp to prevent pending
interrupt.
When the cpu is going to be suspended, save the stimecmp before entering
the suspend state and restore it in the resume path.

Nick Hu (2):
  riscv: Add stimecmp save and restore
  time-riscv: Stop stimecmp when cpu hotplug

 arch/riscv/include/asm/suspend.h  |  4 ++++
 arch/riscv/kernel/suspend.c       | 13 +++++++++++++
 drivers/clocksource/timer-riscv.c | 22 +++++++++++++++-------
 3 files changed, 32 insertions(+), 7 deletions(-)

-- 
2.34.1

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