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Fri, 20 Jan 2023 22:47:33 GMT Received: from hu-eberman-lv.qualcomm.com (10.49.16.6) by nasanex01b.na.qualcomm.com (10.46.141.250) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.36; Fri, 20 Jan 2023 14:47:32 -0800 From: Elliot Berman To: Bjorn Andersson , Alex Elder , Elliot Berman , Murali Nalajala CC: Trilok Soni , Srivatsa Vaddagiri , Carl van Schaik , Prakruthi Deepak Heragu , Dmitry Baryshkov , Arnd Bergmann , "Greg Kroah-Hartman" , Rob Herring , Krzysztof Kozlowski , Jonathan Corbet , Bagas Sanjaya , Catalin Marinas , Will Deacon , Marc Zyngier , Jassi Brar , Sudeep Holla , , , , , Subject: [PATCH v9 03/27] gunyah: Common types and error codes for Gunyah hypercalls Date: Fri, 20 Jan 2023 14:46:02 -0800 Message-ID: <20230120224627.4053418-4-quic_eberman@quicinc.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230120224627.4053418-1-quic_eberman@quicinc.com> References: <20230120224627.4053418-1-quic_eberman@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] X-ClientProxiedBy: nalasex01c.na.qualcomm.com (10.47.97.35) To nasanex01b.na.qualcomm.com (10.46.141.250) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: mHdx1hBxo0GmSzimkzOTJNpb6eCL3Tqh X-Proofpoint-ORIG-GUID: mHdx1hBxo0GmSzimkzOTJNpb6eCL3Tqh X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-01-20_11,2023-01-20_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 spamscore=0 priorityscore=1501 adultscore=0 lowpriorityscore=0 mlxlogscore=810 clxscore=1015 mlxscore=0 suspectscore=0 malwarescore=0 bulkscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2301200218 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230120_144744_685957_B35809BD X-CRM114-Status: GOOD ( 19.90 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add architecture-independent standard error codes, types, and macros for Gunyah hypercalls. Reviewed-by: Dmitry Baryshkov Signed-off-by: Elliot Berman --- MAINTAINERS | 1 + include/linux/gunyah.h | 74 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 75 insertions(+) create mode 100644 include/linux/gunyah.h diff --git a/MAINTAINERS b/MAINTAINERS index d9205cb9e988..f1e07e39b2f5 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9048,6 +9048,7 @@ L: linux-arm-msm@vger.kernel.org S: Supported F: Documentation/devicetree/bindings/firmware/gunyah-hypervisor.yaml F: Documentation/virt/gunyah/ +F: include/linux/gunyah.h HABANALABS PCI DRIVER M: Oded Gabbay diff --git a/include/linux/gunyah.h b/include/linux/gunyah.h new file mode 100644 index 000000000000..985c6086348e --- /dev/null +++ b/include/linux/gunyah.h @@ -0,0 +1,74 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#ifndef _LINUX_GUNYAH_H +#define _LINUX_GUNYAH_H + +#include +#include + +/* Common Gunyah macros */ +#define GH_CAPID_INVAL U64_MAX +#define GH_VMID_ROOT_VM 0xff + +#define GH_ERROR_OK 0 + +#define GH_ERROR_UNIMPLEMENTED -1 +#define GH_ERROR_RETRY -2 + +#define GH_ERROR_ARG_INVAL 1 +#define GH_ERROR_ARG_SIZE 2 +#define GH_ERROR_ARG_ALIGN 3 + +#define GH_ERROR_NOMEM 10 + +#define GH_ERROR_ADDR_OVFL 20 +#define GH_ERROR_ADDR_UNFL 21 +#define GH_ERROR_ADDR_INVAL 22 + +#define GH_ERROR_DENIED 30 +#define GH_ERROR_BUSY 31 +#define GH_ERROR_IDLE 32 + +#define GH_ERROR_IRQ_BOUND 40 +#define GH_ERROR_IRQ_UNBOUND 41 + +#define GH_ERROR_CSPACE_CAP_NULL 50 +#define GH_ERROR_CSPACE_CAP_REVOKED 51 +#define GH_ERROR_CSPACE_WRONG_OBJ_TYPE 52 +#define GH_ERROR_CSPACE_INSUF_RIGHTS 53 +#define GH_ERROR_CSPACE_FULL 54 + +#define GH_ERROR_MSGQUEUE_EMPTY 60 +#define GH_ERROR_MSGQUEUE_FULL 61 + +static inline int gh_remap_error(int gh_error) +{ + switch (gh_error) { + case GH_ERROR_OK: + return 0; + case GH_ERROR_NOMEM: + return -ENOMEM; + case GH_ERROR_DENIED: + case GH_ERROR_CSPACE_CAP_NULL: + case GH_ERROR_CSPACE_CAP_REVOKED: + case GH_ERROR_CSPACE_WRONG_OBJ_TYPE: + case GH_ERROR_CSPACE_INSUF_RIGHTS: + case GH_ERROR_CSPACE_FULL: + return -EACCES; + case GH_ERROR_BUSY: + case GH_ERROR_IDLE: + return -EBUSY; + case GH_ERROR_IRQ_BOUND: + case GH_ERROR_IRQ_UNBOUND: + case GH_ERROR_MSGQUEUE_FULL: + case GH_ERROR_MSGQUEUE_EMPTY: + return -EPERM; + default: + return -EINVAL; + } +} + +#endif