linux-kernel - Re: [PATCH v3] riscv: errata: andes: Probe for IOCP only once in boot stage

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Date:   Thu, 07 Dec 2023 15:20:25 +0000
From:   patchwork-bot+linux-riscv@...nel.org
To:     Lad@...codeaurora.org, Prabhakar <prabhakar.csengg@...il.com>
Cc:     linux-riscv@...ts.infradead.org, paul.walmsley@...ive.com,
        palmer@...belt.com, aou@...s.berkeley.edu,
        conor.dooley@...rochip.com, geert+renesas@...der.be,
        peterlin@...estech.com, samuel.holland@...ive.com,
        linux-kernel@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
        biju.das.jz@...renesas.com, prabhakar.mahadev-lad.rj@...renesas.com
Subject: Re: [PATCH v3] riscv: errata: andes: Probe for IOCP only once in boot
 stage

Hello:

This patch was applied to riscv/linux.git (fixes)
by Palmer Dabbelt <palmer@...osinc.com>:

On Thu, 30 Nov 2023 21:26:47 +0000 you wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> 
> We need to probe for IOCP only once during boot stage, as we were probing
> for IOCP for all the stages this caused the below issue during module-init
> stage,
> 
> [9.019104] Unable to handle kernel paging request at virtual address ffffffff8100d3a0
> [9.027153] Oops [#1]
> [9.029421] Modules linked in: rcar_canfd renesas_usbhs i2c_riic can_dev spi_rspi i2c_core
> [9.037686] CPU: 0 PID: 90 Comm: udevd Not tainted 6.7.0-rc1+ #57
> [9.043756] Hardware name: Renesas SMARC EVK based on r9a07g043f01 (DT)
> [9.050339] epc : riscv_noncoherent_supported+0x10/0x3e
> [9.055558]  ra : andes_errata_patch_func+0x4a/0x52
> [9.060418] epc : ffffffff8000d8c2 ra : ffffffff8000d95c sp : ffffffc8003abb00
> [9.067607]  gp : ffffffff814e25a0 tp : ffffffd80361e540 t0 : 0000000000000000
> [9.074795]  t1 : 000000000900031e t2 : 0000000000000001 s0 : ffffffc8003abb20
> [9.081984]  s1 : ffffffff015b57c7 a0 : 0000000000000000 a1 : 0000000000000001
> [9.089172]  a2 : 0000000000000000 a3 : 0000000000000000 a4 : ffffffff8100d8be
> [9.096360]  a5 : 0000000000000001 a6 : 0000000000000001 a7 : 000000000900031e
> [9.103548]  s2 : ffffffff015b57d7 s3 : 0000000000000001 s4 : 000000000000031e
> [9.110736]  s5 : 8000000000008a45 s6 : 0000000000000500 s7 : 000000000000003f
> [9.117924]  s8 : ffffffc8003abd48 s9 : ffffffff015b1140 s10: ffffffff8151a1b0
> [9.125113]  s11: ffffffff015b1000 t3 : 0000000000000001 t4 : fefefefefefefeff
> [9.132301]  t5 : ffffffff015b57c7 t6 : ffffffd8b63a6000
> [9.137587] status: 0000000200000120 badaddr: ffffffff8100d3a0 cause: 000000000000000f
> [9.145468] [<ffffffff8000d8c2>] riscv_noncoherent_supported+0x10/0x3e
> [9.151972] [<ffffffff800027e8>] _apply_alternatives+0x84/0x86
> [9.157784] [<ffffffff800029be>] apply_module_alternatives+0x10/0x1a
> [9.164113] [<ffffffff80008fcc>] module_finalize+0x5e/0x7a
> [9.169583] [<ffffffff80085cd6>] load_module+0xfd8/0x179c
> [9.174965] [<ffffffff80086630>] init_module_from_file+0x76/0xaa
> [9.180948] [<ffffffff800867f6>] __riscv_sys_finit_module+0x176/0x2a8
> [9.187365] [<ffffffff80889862>] do_trap_ecall_u+0xbe/0x130
> [9.192922] [<ffffffff808920bc>] ret_from_exception+0x0/0x64
> [9.198573] Code: 0009 b7e9 6797 014d a783 85a7 c799 4785 0717 0100 (0123) aef7
> [9.205994] ---[ end trace 0000000000000000 ]---
> 
> [...]

Here is the summary with links:
  - [v3] riscv: errata: andes: Probe for IOCP only once in boot stage
    https://git.kernel.org/riscv/c/ed5b7cfd7839

You are awesome, thank you!
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