From: Greg KH <gregkh@linuxfoundation.org>
To: Yuji Ishikawa <yuji2.ishikawa@toshiba.co.jp>
Cc: "Rob Herring" <robh+dt@kernel.org>,
"Hans Verkuil" <hverkuil@xs4all.nl>,
"Nobuhiro Iwamatsu" <nobuhiro1.iwamatsu@toshiba.co.jp>,
"Jonathan Corbet" <corbet@lwn.net>,
"Sumit Semwal" <sumit.semwal@linaro.org>,
"Christian König" <christian.koenig@amd.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org
Subject: Re: [PATCH v2 3/5] soc: visconti: Add Toshiba Visconti DNN image processing accelerator
Date: Mon, 25 Jul 2022 14:50:55 +0200 [thread overview]
Message-ID: <Yt6Rryi4SHVc4DR4@kroah.com> (raw)
In-Reply-To: <20220722082858.17880-4-yuji2.ishikawa@toshiba.co.jp>
On Fri, Jul 22, 2022 at 05:28:56PM +0900, Yuji Ishikawa wrote:
> --- /dev/null
> +++ b/drivers/soc/visconti/uapi/dnn.h
> @@ -0,0 +1,77 @@
> +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
> +/* Toshiba Visconti DNN Accelerator Support
> + *
> + * (C) Copyright 2022 TOSHIBA CORPORATION
> + * (C) Copyright 2022 Toshiba Electronic Devices & Storage Corporation
> + */
> +
> +#ifndef _UAPI_LINUX_DNN_H
> +#define _UAPI_LINUX_DNN_H
> +
> +#include <linux/ioctl.h>
> +#include <linux/types.h>
> +#include "ipa.h"
> +
> +#define DRV_DNN_BIT_CONFIG_DESC_FINAL (0x8000U)
> +#define DRV_DNN_BUFFER_INDEX_MAX (15)
> +
> +#define DRV_DNN_BASE_ADDR_NUM (8U) /* DNN number of base address */
> +
> +#define DRV_DNN_BASE_ADDR_PURPOSE_INPUT (1U)
> +#define DRV_DNN_BASE_ADDR_PURPOSE_OUTPUT (2U)
> +#define DRV_DNN_BASE_ADDR_PURPOSE_AWB (3U)
> +#define DRV_DNN_BASE_ADDR_PURPOSE_TEMPORARY (4U)
> +
> +/**
> + * struct drv_dnn_status - DNN IPA status for IOC_IPA_GET_STATUS
> + *
> + * @state: State of driver
> + * @eer_cmd: Execution error command
> + * @eer: Execution error
> + * @reserved: Padding
> + * @eer_flags: Execution error flags
> + */
> +struct drv_dnn_status {
> + enum drv_ipa_state state;
> + __u32 eer_cmd;
> + __u32 eer : 1;
> + __u32 reserved : 31;
bitfields will not work like this for uapi files, sorry.
> + __u32 eer_flags[32];
What endian is all of these? Big? Little? Unknown?
> +};
> +
> +struct drv_dnn_base_addr {
> + __u32 purpose;
> + union {
> + struct drv_ipa_addr ipa_addr;
> + uintptr_t list_addr;
You really do not ever want a uintptr_t in a uapi file, that's not going
to be portable at all. It's also not a valid kernel type :(
No documentation on what "purpose" is for?
> + } addr;
> +};
> +
> +/**
> + * struct drv_dnn_descriptor - DNN IPA Descriptor for IOC_IPA_START
> + *
> + * @configuration: Address of configuration data
> + * @configuration_offset: Configuration offset
> + * @configuration_size: Configuration data size
> + * @list_num: Number of input/output list
> + * @base_addr: Base addresses
> + * @base_addr_flag: Bit-fields of base_addr list config;
> + * 0 for fixed address,
> + * 1 for address list.
Where are the bitfield definitions?
What about unused bits, what happens with them? You are checking them,
right?
> + * @config_done: Flags of called configuration
> + * @buffer_info: Table of buffer information
> + * @buffer_info_num: Number of buffer_info
> + */
> +struct drv_dnn_descriptor {
> + struct drv_ipa_addr configuration;
> + __u32 configuration_offset;
What endian are any of these?
thanks,
greg k-h
next prev parent reply other threads:[~2022-07-25 12:51 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-22 8:28 [PATCH v2 0/5] Add Toshiba Visconti DNN image processing accelerator driver Yuji Ishikawa
2022-07-22 8:28 ` [PATCH v2 1/5] dt-bindings: soc: visconti: Add Toshiba Visconti DNN image processing accelerator bindings Yuji Ishikawa
2022-07-22 8:28 ` [PATCH v2 2/5] soc: visconti: Add Toshiba Visconti image processing accelerator common source Yuji Ishikawa
2022-07-25 12:46 ` Greg KH
2022-07-26 7:02 ` yuji2.ishikawa
2022-07-22 8:28 ` [PATCH v2 3/5] soc: visconti: Add Toshiba Visconti DNN image processing accelerator Yuji Ishikawa
2022-07-25 12:48 ` Greg KH
2022-07-26 6:10 ` yuji2.ishikawa
2022-07-25 12:50 ` Greg KH [this message]
2022-07-26 6:10 ` yuji2.ishikawa
2022-07-26 15:15 ` Greg KH
2022-07-22 8:28 ` [PATCH v2 4/5] MAINTAINERS: Add entries for " Yuji Ishikawa
2022-07-25 12:47 ` Greg KH
2022-07-26 6:10 ` yuji2.ishikawa
2022-07-28 8:46 ` Greg KH
2022-07-22 8:28 ` [PATCH v2 5/5] Documentation: driver-api: visconti: add a description of DNN driver Yuji Ishikawa
2022-07-22 13:32 ` Jonathan Corbet
2022-07-26 6:10 ` yuji2.ishikawa
2022-07-25 12:46 ` [PATCH v2 0/5] Add Toshiba Visconti DNN image processing accelerator driver Greg KH
2022-07-26 6:09 ` yuji2.ishikawa
2022-07-28 8:47 ` Greg KH
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