From: Bin Meng <bmeng.cn@gmail.com>
To: u-boot@lists.denx.de
Subject: [PATCH 4/7] riscv: Clear pending IPIs on initialization
Date: Mon, 14 Sep 2020 10:08:30 +0800 [thread overview]
Message-ID: <CAEUhbmW9EFF7WbjLw3LpN_H=KN0hz-A0=VTjGTdRH2AC64e8Vw@mail.gmail.com> (raw)
In-Reply-To: <20200907181659.92449-5-seanga2@gmail.com>
On Tue, Sep 8, 2020 at 2:17 AM Sean Anderson <seanga2@gmail.com> wrote:
>
> Even though we no longer call smp_function if an IPI was not sent by
> U-Boot, we still need to clear any IPIs which were pending from the
> execution environment. Otherwise, secondary harts will busy-wait in
> secondary_hart_loop, instead of relaxing.
>
> Signed-off-by: Sean Anderson <seanga2@gmail.com>
> ---
>
> arch/riscv/cpu/cpu.c | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)
>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
next prev parent reply other threads:[~2020-09-14 2:08 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-07 18:16 [PATCH 0/7] riscv: Correctly handle IPIs already pending upon boot Sean Anderson
2020-09-07 18:16 ` [PATCH 1/7] Revert "riscv: Clear pending interrupts before enabling IPIs" Sean Anderson
2020-09-09 7:50 ` Rick Chen
2020-09-09 10:23 ` Sean Anderson
2020-09-10 6:39 ` Rick Chen
2020-09-10 10:18 ` Sean Anderson
2020-09-11 7:38 ` Bin Meng
2020-09-11 10:22 ` Sean Anderson
2020-09-11 14:45 ` Bin Meng
2020-09-11 18:30 ` Sean Anderson
2020-09-14 3:10 ` Rick Chen
2020-09-14 12:45 ` Sean Anderson
2020-09-07 18:16 ` [PATCH 2/7] riscv: Match memory barriers between send_ipi_many and handle_ipi Sean Anderson
2020-09-11 7:45 ` Bin Meng
2020-09-07 18:16 ` [PATCH 3/7] riscv: Use NULL as a sentinel value for smp_call_function Sean Anderson
2020-09-09 8:33 ` Rick Chen
2020-09-09 9:01 ` Rick Chen
2020-09-09 10:16 ` Sean Anderson
2020-09-09 10:26 ` Heinrich Schuchardt
2020-09-09 10:36 ` Sean Anderson
2020-09-10 8:09 ` Rick Chen
2020-09-14 3:21 ` Rick Chen
2020-09-11 8:04 ` Bin Meng
2020-09-14 1:58 ` Leo Liang
2020-09-14 2:07 ` Bin Meng
2020-09-14 6:10 ` Leo Liang
2020-09-14 6:15 ` Bin Meng
2020-09-14 14:05 ` Sean Anderson
2020-09-07 18:16 ` [PATCH 4/7] riscv: Clear pending IPIs on initialization Sean Anderson
2020-09-14 2:08 ` Bin Meng [this message]
2020-09-07 18:16 ` [PATCH 5/7] riscv: Add fence to available_harts_lock Sean Anderson
2020-09-10 3:26 ` Rick Chen
2020-09-11 10:39 ` Sean Anderson
2020-09-11 14:47 ` Bin Meng
2020-09-07 18:16 ` [PATCH 6/7] riscv: Ensure gp is NULL or points to valid data Sean Anderson
2020-09-14 5:25 ` Bin Meng
2020-09-14 13:03 ` Sean Anderson
2020-09-14 13:27 ` Sean Anderson
2020-09-07 18:16 ` [PATCH 7/7] riscv: Add some comments to start.S Sean Anderson
2020-09-14 5:26 ` Bin Meng
2020-09-09 2:02 ` [PATCH 0/7] riscv: Correctly handle IPIs already pending upon boot Rick Chen
2020-09-09 2:38 ` Sean Anderson
2020-09-09 2:44 ` Sean Anderson
2020-09-10 7:08 ` Rick Chen
2020-09-10 10:49 ` Sean Anderson
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