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From: Rick Chen <rickchen36@gmail.com>
To: u-boot@lists.denx.de
Subject: [PATCH 1/7] Revert "riscv: Clear pending interrupts before enabling IPIs"
Date: Wed, 9 Sep 2020 15:50:40 +0800	[thread overview]
Message-ID: <CAN5B=eKF-dZpAq3CKsE3_wAqwLA0BZ80_8+2X7qXORF49HsVGQ@mail.gmail.com> (raw)
In-Reply-To: <20200907181659.92449-2-seanga2@gmail.com>

Hi Sean

> Clearing MIP doesn't do anything. Whoops. The following commits should
> tackle this problem in a more robust manner.

I still not catch your points about that  this commit 947263033 really
help to fix  pending IPIs not clean problem on k210 platform at that
time, but you just said it do nothing and remove it here currently.

Thanks,
Rick

>
> This reverts commit 9472630337e7c4ac442066b5a752aaa8c3b4d4a6.
>
> Signed-off-by: Sean Anderson <seanga2@gmail.com>
> ---
>
>  arch/riscv/cpu/start.S | 2 --
>  1 file changed, 2 deletions(-)
>
> diff --git a/arch/riscv/cpu/start.S b/arch/riscv/cpu/start.S
> index bf9fdf369b..e3222b1ea7 100644
> --- a/arch/riscv/cpu/start.S
> +++ b/arch/riscv/cpu/start.S
> @@ -65,8 +65,6 @@ _start:
>  #else
>         li      t0, SIE_SSIE
>  #endif
> -       /* Clear any pending IPIs */
> -       csrc    MODE_PREFIX(ip), t0
>         csrs    MODE_PREFIX(ie), t0
>  #endif
>
> --
> 2.28.0
>

  reply	other threads:[~2020-09-09  7:50 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 [this message]
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
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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