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Wed, 01 Apr 2020 22:00:13 +0000 Received: from b01ledav001.gho.pok.ibm.com (b01ledav001.gho.pok.ibm.com [9.57.199.106]) by b01cxnp23032.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 031M0CUc53543338 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 1 Apr 2020 22:00:12 GMT Received: from b01ledav001.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6C9DA2805E; Wed, 1 Apr 2020 22:00:12 +0000 (GMT) Received: from b01ledav001.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id ABB3C28059; Wed, 1 Apr 2020 22:00:11 +0000 (GMT) Received: from [9.70.82.143] (unknown [9.70.82.143]) by b01ledav001.gho.pok.ibm.com (Postfix) with ESMTP; Wed, 1 Apr 2020 22:00:11 +0000 (GMT) Subject: [PATCH v5 2/9] powerpc/vas: Define VAS_TX_WIN_OPEN ioctl API From: Haren Myneni To: mpe@ellerman.id.au In-Reply-To: <1585777592.10664.462.camel@hbabu-laptop> References: <1585777592.10664.462.camel@hbabu-laptop> Content-Type: text/plain; charset="UTF-8" Date: Wed, 01 Apr 2020 14:58:38 -0700 Message-ID: <1585778318.10664.477.camel@hbabu-laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.676 definitions=2020-04-01_04:2020-03-31, 2020-04-01 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 spamscore=0 phishscore=0 impostorscore=0 mlxlogscore=661 lowpriorityscore=0 suspectscore=1 adultscore=0 priorityscore=1501 mlxscore=0 bulkscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2004010174 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mikey@neuling.org, herbert@gondor.apana.org.au, npiggin@gmail.com, linux-crypto@vger.kernel.org, sukadev@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org, dja@axtens.net Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Define the VAS_TX_WIN_OPEN ioctl interface for NX GZIP access from user space. This interface is used to open GZIP send window and mmap region which can be used by user space to send requests to NX directly with copy/paste instructions. Signed-off-by: Haren Myneni --- Documentation/userspace-api/ioctl/ioctl-number.rst | 1 + arch/powerpc/include/uapi/asm/vas-api.h | 22 ++++++++++++++++++++++ 2 files changed, 23 insertions(+) create mode 100644 arch/powerpc/include/uapi/asm/vas-api.h diff --git a/Documentation/userspace-api/ioctl/ioctl-number.rst b/Documentation/userspace-api/ioctl/ioctl-number.rst index f759eda..f18accb 100644 --- a/Documentation/userspace-api/ioctl/ioctl-number.rst +++ b/Documentation/userspace-api/ioctl/ioctl-number.rst @@ -286,6 +286,7 @@ Code Seq# Include File Comments 'v' 00-1F linux/fs.h conflict! 'v' 00-0F linux/sonypi.h conflict! 'v' 00-0F media/v4l2-subdev.h conflict! +'v' 20-27 arch/powerpc/include/uapi/asm/vas-api.h VAS API 'v' C0-FF linux/meye.h conflict! 'w' all CERN SCI driver 'y' 00-1F packet based user level communications diff --git a/arch/powerpc/include/uapi/asm/vas-api.h b/arch/powerpc/include/uapi/asm/vas-api.h new file mode 100644 index 0000000..fe95d67 --- /dev/null +++ b/arch/powerpc/include/uapi/asm/vas-api.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ +/* + * Copyright 2019 IBM Corp. + */ + +#ifndef _UAPI_MISC_VAS_H +#define _UAPI_MISC_VAS_H + +#include + +#define VAS_MAGIC 'v' +#define VAS_TX_WIN_OPEN _IOW(VAS_MAGIC, 0x20, struct vas_tx_win_open_attr) + +struct vas_tx_win_open_attr { + __u32 version; + __s16 vas_id; /* specific instance of vas or -1 for default */ + __u16 reserved1; + __u64 flags; /* Future use */ + __u64 reserved2[6]; +}; + +#endif /* _UAPI_MISC_VAS_H */ -- 1.8.3.1