Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Feedback-ID: i0ad843c9:Fastmail
From:   Samuel Holland <samuel@sholland.org>
To:     Palmer Dabbelt <palmer@dabbelt.com>,
        Dmitry Osipenko <dmitry.osipenko@collabora.com>,
        "Rafael J . Wysocki" <rafael.j.wysocki@intel.com>
Cc:     Samuel Holland <samuel@sholland.org>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Anup Patel <apatel@ventanamicro.com>,
        Atish Patra <atishp@rivosinc.com>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Heiko Stuebner <heiko@sntech.de>,
        Kai-Heng Feng <kai.heng.feng@canonical.com>,
        Luis Chamberlain <mcgrof@kernel.org>,
        "Paul E. McKenney" <paulmck@kernel.org>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Petr Mladek <pmladek@suse.com>,
        YueHaibing <yuehaibing@huawei.com>, linux-kernel@vger.kernel.org,
        linux-riscv@lists.infradead.org, tangmeng <tangmeng@uniontech.com>
Subject: [PATCH 0/3] riscv: sbi: Switch to the sys-off handler API
Date:   Wed, 28 Dec 2022 10:19:12 -0600
Message-Id: <20221228161915.13194-1-samuel@sholland.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

I want to convert the axp20x PMIC poweroff handler to use the sys-off
API, so it can be used as a fallback for if the SBI poweroff handler
is unavailable. But the SBI poweroff handler still uses pm_power_off, so
done alone, this would cause the axp20x callback to be called first,
before the SBI poweroff handler has a chance to run.

In order to prevent this change in behavior, the SBI poweroff handler
needs to be converted to the sys-off API first, at a higher priority.

This series performs the conversion, after accounting for the fact that
the SBI poweroff handler is registered quite early during boot.

The first patch is a dependency for both this series and the PSCI
series[1], so I would like to get at least patch 1 merged soon.

[1]: https://lore.kernel.org/lkml/20221105214841.7828-1-samuel@sholland.org/


Samuel Holland (3):
  kernel/reboot: Use the static sys-off handler for any priority
  riscv: sbi: Share the code for unsupported extension warnings
  riscv: sbi: Switch to the sys-off handler API

 arch/riscv/include/asm/sbi.h |  1 -
 arch/riscv/kernel/sbi.c      | 63 +++++++++++++++++++++---------------
 kernel/reboot.c              | 10 +++---
 3 files changed, 41 insertions(+), 33 deletions(-)

-- 
2.37.4