From patchwork Tue Jan 9 19:37:41 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Elliot Berman X-Patchwork-Id: 13515388 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5AB78C4725D for ; Tue, 9 Jan 2024 20:46:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:CC:To:In-Reply-To:References:Message-ID :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=DemDQYzp1N1sai7nRx3YKzngV/mwF6oGKYM9pjdRGSQ=; b=noVCxRT0C2Q5Si WxqSltlAesbucc3rlTIOf2LIk3bXldXdnIzSIaOfcCGYzYPcHIbO0tw5rAUeXt0LRu1pIH0kyoM/E jdZgjsBHs3Azs5kMD579j1/8njWI0WXeegmyuzirX/3PxFkunGmz422G6xDRcczcJ1MQNfA+js+Tv 52ndzTmNaM2WZwWkwuFY4z9tcfdH7L/hkARUxcc71aTzCBkcc2P4l1Dnidpa0kzZ9nfBzT5IJmRyR k3oLg1cpkQa+4p/V8IlrhIMcx68ze1wPvVrvRkBYoeVMPKMSxxi9PpuJ2nDW5t8tuinTFxNfSvDWe 7TFtsIL6Lc/H5lNS1Ibw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rNIyo-009U7b-2p; Tue, 09 Jan 2024 20:45:46 +0000 Received: from mx0b-0031df01.pphosted.com ([205.220.180.131]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rNHvJ-009IuC-2R for linux-arm-kernel@lists.infradead.org; Tue, 09 Jan 2024 19:38:10 +0000 Received: from pps.filterd (m0279871.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 409Gxr7f030302; Tue, 9 Jan 2024 19:37:52 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= from:date:subject:mime-version:content-type :content-transfer-encoding:message-id:references:in-reply-to:to :cc; s=qcppdkim1; bh=79hmU2lp1B5mL+vTI4VCC81K4NZ9OnMRLXsigEg7NjA =; b=jTlTqzlaIoNWJ3xWkBqZpGr2TQgOr6wi6b494/cSFWtw7QSSyTqCrtx96LT +ombeaEOt3hRv6ciEFkaP5u4mcpL8hKDry+NnqIHHtl6NAG8ZQQGfxj8iKIf9WaL pZcqabCID5S1f8gc8Voude/n7IkfvqwTS64JD+EzAxvZauvtcbGbKhEVYuwOG9BA mWBMm4QhN9XaGZrc/mXNK2w+LC8WSChTVFbukp7kpmSSmM0r0vwtmMh6F0oTb35/ XRX0T1w9PUS5Nr3MI2erJ1rCVscVnuLQbqRUuTBpQyM+A07n70RDXG1pAt3FxGxr IlhBZb2LTRUeput0KGlPLU7jfqg== Received: from nasanppmta02.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3vh98m8hqd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 09 Jan 2024 19:37:52 +0000 (GMT) Received: from nasanex01b.na.qualcomm.com (nasanex01b.na.qualcomm.com [10.46.141.250]) by NASANPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 409Jbp4d011905 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 9 Jan 2024 19:37:51 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 15.2.1118.40; Tue, 9 Jan 2024 11:37:50 -0800 From: Elliot Berman Date: Tue, 9 Jan 2024 11:37:41 -0800 Subject: [PATCH v16 03/34] gunyah: Common types and error codes for Gunyah hypercalls MIME-Version: 1.0 Message-ID: <20240109-gunyah-v16-3-634904bf4ce9@quicinc.com> References: <20240109-gunyah-v16-0-634904bf4ce9@quicinc.com> In-Reply-To: <20240109-gunyah-v16-0-634904bf4ce9@quicinc.com> To: Alex Elder , Srinivas Kandagatla , Murali Nalajal , Trilok Soni , Srivatsa Vaddagiri , Carl van Schaik , Philip Derrin , Prakruthi Deepak Heragu , Jonathan Corbet , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Catalin Marinas , Will Deacon , Konrad Dybcio , Bjorn Andersson , Dmitry Baryshkov , "Fuad Tabba" , Sean Christopherson , "Andrew Morton" CC: , , , , , , Elliot Berman X-Mailer: b4 0.13-dev 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-ORIG-GUID: c6Fe_jSNy_BQ31t0hfFNRHbgo2Psl9eu X-Proofpoint-GUID: c6Fe_jSNy_BQ31t0hfFNRHbgo2Psl9eu X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-09_02,2023-12-07_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 impostorscore=0 spamscore=0 mlxscore=0 priorityscore=1501 phishscore=0 malwarescore=0 mlxlogscore=368 suspectscore=0 clxscore=1015 bulkscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2401090158 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240109_113805_956759_C7274F9E X-CRM114-Status: GOOD ( 15.01 ) 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 Reviewed-by: Srinivas Kandagatla Reviewed-by: Alex Elder Signed-off-by: Elliot Berman --- include/linux/gunyah.h | 106 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 106 insertions(+) diff --git a/include/linux/gunyah.h b/include/linux/gunyah.h new file mode 100644 index 000000000000..1eab631a49b6 --- /dev/null +++ b/include/linux/gunyah.h @@ -0,0 +1,106 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#ifndef _LINUX_GUNYAH_H +#define _LINUX_GUNYAH_H + +#include +#include +#include + +/* Matches resource manager's resource types for VM_GET_HYP_RESOURCES RPC */ +enum gunyah_resource_type { + /* clang-format off */ + GUNYAH_RESOURCE_TYPE_BELL_TX = 0, + GUNYAH_RESOURCE_TYPE_BELL_RX = 1, + GUNYAH_RESOURCE_TYPE_MSGQ_TX = 2, + GUNYAH_RESOURCE_TYPE_MSGQ_RX = 3, + GUNYAH_RESOURCE_TYPE_VCPU = 4, + GUNYAH_RESOURCE_TYPE_MEM_EXTENT = 9, + GUNYAH_RESOURCE_TYPE_ADDR_SPACE = 10, + /* clang-format on */ +}; + +struct gunyah_resource { + enum gunyah_resource_type type; + u64 capid; + unsigned int irq; +}; + +/******************************************************************************/ +/* Common arch-independent definitions for Gunyah hypercalls */ +#define GUNYAH_CAPID_INVAL U64_MAX +#define GUNYAH_VMID_ROOT_VM 0xff + +enum gunyah_error { + /* clang-format off */ + GUNYAH_ERROR_OK = 0, + GUNYAH_ERROR_UNIMPLEMENTED = -1, + GUNYAH_ERROR_RETRY = -2, + + GUNYAH_ERROR_ARG_INVAL = 1, + GUNYAH_ERROR_ARG_SIZE = 2, + GUNYAH_ERROR_ARG_ALIGN = 3, + + GUNYAH_ERROR_NOMEM = 10, + + GUNYAH_ERROR_ADDR_OVFL = 20, + GUNYAH_ERROR_ADDR_UNFL = 21, + GUNYAH_ERROR_ADDR_INVAL = 22, + + GUNYAH_ERROR_DENIED = 30, + GUNYAH_ERROR_BUSY = 31, + GUNYAH_ERROR_IDLE = 32, + + GUNYAH_ERROR_IRQ_BOUND = 40, + GUNYAH_ERROR_IRQ_UNBOUND = 41, + + GUNYAH_ERROR_CSPACE_CAP_NULL = 50, + GUNYAH_ERROR_CSPACE_CAP_REVOKED = 51, + GUNYAH_ERROR_CSPACE_WRONG_OBJ_TYPE = 52, + GUNYAH_ERROR_CSPACE_INSUF_RIGHTS = 53, + GUNYAH_ERROR_CSPACE_FULL = 54, + + GUNYAH_ERROR_MSGQUEUE_EMPTY = 60, + GUNYAH_ERROR_MSGQUEUE_FULL = 61, + /* clang-format on */ +}; + +/** + * gunyah_error_remap() - Remap Gunyah hypervisor errors into a Linux error code + * @gunyah_error: Gunyah hypercall return value + */ +static inline int gunyah_error_remap(enum gunyah_error gunyah_error) +{ + switch (gunyah_error) { + case GUNYAH_ERROR_OK: + return 0; + case GUNYAH_ERROR_NOMEM: + return -ENOMEM; + case GUNYAH_ERROR_DENIED: + case GUNYAH_ERROR_CSPACE_CAP_NULL: + case GUNYAH_ERROR_CSPACE_CAP_REVOKED: + case GUNYAH_ERROR_CSPACE_WRONG_OBJ_TYPE: + case GUNYAH_ERROR_CSPACE_INSUF_RIGHTS: + return -EACCES; + case GUNYAH_ERROR_CSPACE_FULL: + case GUNYAH_ERROR_BUSY: + case GUNYAH_ERROR_IDLE: + return -EBUSY; + case GUNYAH_ERROR_IRQ_BOUND: + case GUNYAH_ERROR_IRQ_UNBOUND: + case GUNYAH_ERROR_MSGQUEUE_FULL: + case GUNYAH_ERROR_MSGQUEUE_EMPTY: + return -EIO; + case GUNYAH_ERROR_UNIMPLEMENTED: + return -EOPNOTSUPP; + case GUNYAH_ERROR_RETRY: + return -EAGAIN; + default: + return -EINVAL; + } +} + +#endif