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From: "Philippe Mathieu-Daudé" <philmd@redhat.com>
To: Jim Shu <jim.shu@sifive.com>,
	Alistair.Francis@wdc.com, bin.meng@windriver.com,
	palmer@dabbelt.com, frank.chang@sifive.com,
	qemu-riscv@nongnu.org, qemu-devel@nongnu.org
Subject: Re: [PATCH 2/2] hw/dma: sifive_pdma: permit 4/8-byte access size of PDMA registers
Date: Tue, 28 Dec 2021 11:35:31 +0100	[thread overview]
Message-ID: <df3d3a3a-500b-8dd2-045c-7074682af27e@redhat.com> (raw)
In-Reply-To: <20211228005236.415583-3-jim.shu@sifive.com>

On 12/28/21 01:52, Jim Shu wrote:
> It's obvious that PDMA support 64-bit access of 64-bit registers, and
> in previous commit, we confirm that PDMA support 32-bit access of both
> 32/64-bit registers. Thus, we configure 32/64-bit memory access of
> PDMA registers as valid in general.
> 
> Signed-off-by: Jim Shu <jim.shu@sifive.com>
> Reviewed-by: Frank Chang <frank.chang@sifive.com>
> ---
>  hw/dma/sifive_pdma.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/hw/dma/sifive_pdma.c b/hw/dma/sifive_pdma.c
> index b8b198ab4e..731fcdcf89 100644
> --- a/hw/dma/sifive_pdma.c
> +++ b/hw/dma/sifive_pdma.c
> @@ -441,6 +441,10 @@ static const MemoryRegionOps sifive_pdma_ops = {
>      .impl = {
>          .min_access_size = 4,
>          .max_access_size = 8,
> +    },
> +    .valid = {
> +        .min_access_size = 4,
> +        .max_access_size = 8,
>      }
>  };
>  

Eh now I see this patch. It is correct, so:
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

But I think the previous patch could be simpler.



  reply	other threads:[~2021-12-28 10:37 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-28  0:52 [PATCH 0/2] Align SiFive PDMA behavior to real hardware Jim Shu
2021-12-28  0:52 ` [PATCH 1/2] hw/dma: sifive_pdma: support high 32-bit access of 64-bit register Jim Shu
2021-12-28 10:33   ` Philippe Mathieu-Daudé
2022-01-03 22:45   ` Alistair Francis
2022-01-04  2:55   ` Bin Meng
2022-01-04  5:53     ` Jim Shu
2021-12-28  0:52 ` [PATCH 2/2] hw/dma: sifive_pdma: permit 4/8-byte access size of PDMA registers Jim Shu
2021-12-28 10:35   ` Philippe Mathieu-Daudé [this message]
2022-01-03 22:46   ` Alistair Francis
2022-01-04  2:56   ` Bin Meng

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