linux-kernel - Re: [PATCH V3 05/11] accel/amdxdna: Add hardware context

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Message-ID: <c1f92388-bd94-ebc2-dd59-0434a3fa63a6@quicinc.com>
Date: Fri, 4 Oct 2024 11:50:30 -0600
From: Jeffrey Hugo <quic_jhugo@...cinc.com>
To: Lizhi Hou <lizhi.hou@....com>, <ogabbay@...nel.org>,
        <dri-devel@...ts.freedesktop.org>
CC: <linux-kernel@...r.kernel.org>, <min.ma@....com>, <max.zhen@....com>,
        <sonal.santan@....com>, <king.tam@....com>
Subject: Re: [PATCH V3 05/11] accel/amdxdna: Add hardware context

On 9/11/2024 12:05 PM, Lizhi Hou wrote:
> diff --git a/drivers/accel/amdxdna/aie2_ctx.c b/drivers/accel/amdxdna/aie2_ctx.c
> new file mode 100644
> index 000000000000..52a71661f887
> --- /dev/null
> +++ b/drivers/accel/amdxdna/aie2_ctx.c
> @@ -0,0 +1,186 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (C) 2024, Advanced Micro Devices, Inc.
> + */
> +
> +#include <drm/amdxdna_accel.h>
> +#include <drm/drm_device.h>
> +#include <drm/drm_print.h>
> +#include <linux/types.h>
> +
> +#include "amdxdna_ctx.h"
> +#include "amdxdna_mailbox.h"
> +#include "amdxdna_pci_drv.h"
> +#include "aie2_pci.h"
> +#include "aie2_solver.h"

Alphabetical order?

<snip>
> +/**
> + * struct amdxdna_drm_create_hwctx - Create hardware context.
> + * @ext: MBZ.
> + * @ext_flags: MBZ.
> + * @qos_p: Address of QoS info.
> + * @umq_bo: BO handle for user mode queue(UMQ).
> + * @log_buf_bo: BO handle for log buffer.
> + * @max_opc: Maximum operations per cycle.
> + * @num_tiles: Number of AIE tiles.
> + * @mem_size: Size of AIE tile memory.
> + * @umq_doorbell: Returned offset of doorbell associated with UMQ.
> + * @handle: Returned hardware context handle.
> + * @pad: MBZ.

You specify must be zero, but I don't see that checked anywhere.

> + */
> +struct amdxdna_drm_create_hwctx {
> +	__u64 ext;
> +	__u64 ext_flags;
> +	__u64 qos_p;
> +	__u32 umq_bo;
> +	__u32 log_buf_bo;
> +	__u32 max_opc;
> +	__u32 num_tiles;
> +	__u32 mem_size;
> +	__u32 umq_doorbell;
> +	__u32 handle;
> +	__u32 pad;
> +};