linux-kernel - Re: [PATCH V1] accel/amdxdna: Switch to always use chained command

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Message-ID: <68d89362-7592-4465-adaf-8be1268131ba@amd.com>
Date: Fri, 6 Feb 2026 08:52:35 -0600
From: Mario Limonciello <mario.limonciello@....com>
To: Lizhi Hou <lizhi.hou@....com>, ogabbay@...nel.org,
 quic_jhugo@...cinc.com, dri-devel@...ts.freedesktop.org,
 maciej.falkowski@...ux.intel.com
Cc: linux-kernel@...r.kernel.org, max.zhen@....com, sonal.santan@....com
Subject: Re: [PATCH V1] accel/amdxdna: Switch to always use chained command



On 2/6/2026 12:02 AM, Lizhi Hou wrote:
> Preempt commands are only supported when submitted as chained commands.
> To ensure preempt support works consistently, always submit commands in
> chained command format.
> 
> Set force_cmdlist to true so that single commands are filled using the
> chained command layout, enabling correct handling of preempt commands.
> 
> Fixes: 3a0ff7b98af4 ("accel/amdxdna: Support preemption requests")
> Signed-off-by: Lizhi Hou <lizhi.hou@....com>
> ---
>   drivers/accel/amdxdna/aie2_ctx.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/accel/amdxdna/aie2_ctx.c b/drivers/accel/amdxdna/aie2_ctx.c
> index 37d05f2e986f..6378a0bc7b6e 100644
> --- a/drivers/accel/amdxdna/aie2_ctx.c
> +++ b/drivers/accel/amdxdna/aie2_ctx.c
> @@ -23,9 +23,9 @@
>   #include "amdxdna_pci_drv.h"
>   #include "amdxdna_pm.h"
>   
> -static bool force_cmdlist;
> +static bool force_cmdlist = true;
>   module_param(force_cmdlist, bool, 0600);
> -MODULE_PARM_DESC(force_cmdlist, "Force use command list (Default false)");
> +MODULE_PARM_DESC(force_cmdlist, "Force use command list (Default true)");
>   
>   #define HWCTX_MAX_TIMEOUT	60000 /* milliseconds */
>   

Reviewed-by: Mario Limonciello (AMD) <superm1@...nel.org>