From patchwork Mon Aug 1 21:12:33 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Elliot Berman X-Patchwork-Id: 12934067 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 857D8C25B0E for ; Mon, 1 Aug 2022 21:14:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235007AbiHAVOB (ORCPT ); Mon, 1 Aug 2022 17:14:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41038 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234487AbiHAVOA (ORCPT ); Mon, 1 Aug 2022 17:14:00 -0400 Received: from alexa-out-sd-01.qualcomm.com (alexa-out-sd-01.qualcomm.com [199.106.114.38]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 887573C150; Mon, 1 Aug 2022 14:13:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1659388439; x=1690924439; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=8Zu1w/0V0h7dug7aLTMZQuEKcNOe7CoCHzakPAKWRP0=; b=tAw8LVSOdTCRaKgM3QipjQk3tmpjQgAP3SPTxPRaG61M1ci4Z6q3Vbs2 S5/H57SjIL+Ke/bwBCK2LN5D3TXMZLhnr/eCD1h+oGL+9WGOaTfdH0uua +0aT6xA7rtJbsnrbdQ0yKtaoH/ej91lIt3i+HcxsjpwYVymeQPTYW4rFd 4=; Received: from unknown (HELO ironmsg05-sd.qualcomm.com) ([10.53.140.145]) by alexa-out-sd-01.qualcomm.com with ESMTP; 01 Aug 2022 14:13:58 -0700 X-QCInternal: smtphost Received: from nasanex01b.na.qualcomm.com ([10.46.141.250]) by ironmsg05-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Aug 2022 14:13:58 -0700 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 15.2.986.22; Mon, 1 Aug 2022 14:13:57 -0700 From: Elliot Berman To: Bjorn Andersson CC: Elliot Berman , Murali Nalajala , Trilok Soni , "Srivatsa Vaddagiri" , Carl van Schaik , Andy Gross , , Lorenzo Pieralisi , Sudeep Holla , "Marc Zyngier" , Rob Herring , "Krzysztof Kozlowski" , Jonathan Corbet , Will Deacon , Catalin Marinas , , , Subject: [PATCH v2 04/11] gunyah: Common types and error codes for Gunyah hypercalls Date: Mon, 1 Aug 2022 14:12:33 -0700 Message-ID: <20220801211240.597859-5-quic_eberman@quicinc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220801211240.597859-1-quic_eberman@quicinc.com> References: <20220801211240.597859-1-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) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add architecture-independent standard error codes, types, and macros for Gunyah hypercalls. Signed-off-by: Elliot Berman --- MAINTAINERS | 1 + include/linux/gunyah.h | 75 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 76 insertions(+) create mode 100644 include/linux/gunyah.h diff --git a/MAINTAINERS b/MAINTAINERS index 02f97ac90cdf..2e4f1d9ed47b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8744,6 +8744,7 @@ S: Maintained F: Documentation/devicetree/bindings/firmware/gunyah-hypervisor.yaml F: Documentation/virt/gunyah/ F: arch/arm64/include/asm/gunyah.h +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..69931a0f5736 --- /dev/null +++ b/include/linux/gunyah.h @@ -0,0 +1,75 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#ifndef _GUNYAH_H +#define _GUNYAH_H + +#include +#include +#include + +typedef u64 gh_capid_t; + +/* Common Gunyah macros */ +#define GH_CAPID_INVAL U64_MAX + +#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