linux-kernel - Re: [PATCH] dma-mapping: Save base/size instead of pointer to shared DMA pool

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Message-Id: 
 <173395639900.1729195.15505065425946747500.git-patchwork-notify@kernel.org>
Date: Wed, 11 Dec 2024 22:33:19 +0000
From: patchwork-bot+linux-riscv@...nel.org
To: Geert Uytterhoeven <geert+renesas@...der.be>
Cc: linux-riscv@...ts.infradead.org, quic_obabatun@...cinc.com,
 robh@...nel.org, hch@....de, m.szyprowski@...sung.com, robin.murphy@....com,
 iommu@...ts.linux.dev, linux-renesas-soc@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dma-mapping: Save base/size instead of pointer to shared DMA
 pool

Hello:

This patch was applied to riscv/linux.git (fixes)
by Christoph Hellwig <hch@....de>:

On Tue, 12 Nov 2024 19:39:37 +0100 you wrote:
> On RZ/Five, which is non-coherent, and uses CONFIG_DMA_GLOBAL_POOL=y:
> 
>     Oops - store (or AMO) access fault [#1]
>     CPU: 0 UID: 0 PID: 1 Comm: swapper Not tainted 6.12.0-rc1-00015-g8a6e02d0c00e #201
>     Hardware name: Renesas SMARC EVK based on r9a07g043f01 (DT)
>     epc : __memset+0x60/0x100
>      ra : __dma_alloc_from_coherent+0x150/0x17a
>     epc : ffffffff8062d2bc ra : ffffffff80053a94 sp : ffffffc60000ba20
>      gp : ffffffff812e9938 tp : ffffffd601920000 t0 : ffffffc6000d0000
>      t1 : 0000000000000000 t2 : ffffffffe9600000 s0 : ffffffc60000baa0
>      s1 : ffffffc6000d0000 a0 : ffffffc6000d0000 a1 : 0000000000000000
>      a2 : 0000000000001000 a3 : ffffffc6000d1000 a4 : 0000000000000000
>      a5 : 0000000000000000 a6 : ffffffd601adacc0 a7 : ffffffd601a841a8
>      s2 : ffffffd6018573c0 s3 : 0000000000001000 s4 : ffffffd6019541e0
>      s5 : 0000000200000022 s6 : ffffffd6018f8410 s7 : ffffffd6018573e8
>      s8 : 0000000000000001 s9 : 0000000000000001 s10: 0000000000000010
>      s11: 0000000000000000 t3 : 0000000000000000 t4 : ffffffffdefe62d1
>      t5 : 000000001cd6a3a9 t6 : ffffffd601b2aad6
>     status: 0000000200000120 badaddr: ffffffc6000d0000 cause: 0000000000000007
>     [<ffffffff8062d2bc>] __memset+0x60/0x100
>     [<ffffffff80053e1a>] dma_alloc_from_global_coherent+0x1c/0x28
>     [<ffffffff80053056>] dma_direct_alloc+0x98/0x112
>     [<ffffffff8005238c>] dma_alloc_attrs+0x78/0x86
>     [<ffffffff8035fdb4>] rz_dmac_probe+0x3f6/0x50a
>     [<ffffffff803a0694>] platform_probe+0x4c/0x8a
> 
> [...]

Here is the summary with links:
  - dma-mapping: Save base/size instead of pointer to shared DMA pool
    https://git.kernel.org/riscv/c/22293c33738c

You are awesome, thank you!
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