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Sat, 29 Feb 2020 11:12:47 +0000 Received: from b01ledav003.gho.pok.ibm.com (b01ledav003.gho.pok.ibm.com [9.57.199.108]) by b01cxnp23034.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 01TBCkmj47448350 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 29 Feb 2020 11:12:46 GMT Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 96F9CB2066; Sat, 29 Feb 2020 11:12:46 +0000 (GMT) Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id ECC47B2065; Sat, 29 Feb 2020 11:12:45 +0000 (GMT) Received: from [9.70.82.143] (unknown [9.70.82.143]) by b01ledav003.gho.pok.ibm.com (Postfix) with ESMTP; Sat, 29 Feb 2020 11:12:45 +0000 (GMT) Subject: [PATCH V2 2/9] powerpc/vas: Define VAS_TX_WIN_OPEN ioctl API From: Haren Myneni To: herbert@gondor.apana.org.au In-Reply-To: <1582974266.18705.28.camel@hbabu-laptop> References: <1582974266.18705.28.camel@hbabu-laptop> Content-Type: text/plain; charset="UTF-8" Date: Sat, 29 Feb 2020 03:11:50 -0800 Message-ID: <1582974710.18705.38.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, 18.0.572 definitions=2020-02-29_03:2020-02-28, 2020-02-29 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 mlxscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 suspectscore=1 bulkscore=0 mlxlogscore=727 phishscore=0 adultscore=0 priorityscore=1501 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2002290087 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, npiggin@gmail.com, linux-crypto@vger.kernel.org, sukadev@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org 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 userspace 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 2e91370..deabc73 100644 --- a/Documentation/userspace-api/ioctl/ioctl-number.rst +++ b/Documentation/userspace-api/ioctl/ioctl-number.rst @@ -287,6 +287,7 @@ 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