From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ABDF2C10F29 for ; Wed, 11 Mar 2020 13:57:53 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 38EC721D7E for ; Wed, 11 Mar 2020 13:57:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="eNPEjIVE" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 38EC721D7E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:52534 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jC1rs-0006IW-2b for qemu-devel@archiver.kernel.org; Wed, 11 Mar 2020 09:57:52 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35909) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jC1mV-0003Jm-Df for qemu-devel@nongnu.org; Wed, 11 Mar 2020 09:52:20 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jC1mU-0001uR-4Z for qemu-devel@nongnu.org; Wed, 11 Mar 2020 09:52:19 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:29677 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jC1mU-0001tf-1U for qemu-devel@nongnu.org; Wed, 11 Mar 2020 09:52:18 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1583934737; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=V+xBC2RXQ5rqxWP6/1TDovGW7bQFrd1e4rfk5KfHEUI=; b=eNPEjIVEdXm3dH8Bg5ULn5Z7AK6lkL/G/gvEr72rc5nmCE+fZ+CwFeGYuVpgkteBAykcfu dQDKruKRLMuUu7AitUrxnwEsJWV8G7NBxh6PBVzgIw+NbYsne7sjL4tHjzVHwaP7yUrRTN GFf8c8ldOwy1olxVQbanB3AdxpIUJ4Q= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-460-AX4EL4XJNcmX8yVAV6MS5w-1; Wed, 11 Mar 2020 09:52:14 -0400 X-MC-Unique: AX4EL4XJNcmX8yVAV6MS5w-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 704AA189F760; Wed, 11 Mar 2020 13:52:12 +0000 (UTC) Received: from laptop.redhat.com (unknown [10.36.118.12]) by smtp.corp.redhat.com (Postfix) with ESMTP id 746CD5C13D; Wed, 11 Mar 2020 13:52:05 +0000 (UTC) From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, maz@kernel.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, qemu-devel@nongnu.org, qemu-arm@nongnu.org Subject: [kvm-unit-tests PATCH v6 08/13] arm/arm64: ITS: Device and collection Initialization Date: Wed, 11 Mar 2020 14:51:12 +0100 Message-Id: <20200311135117.9366-9-eric.auger@redhat.com> In-Reply-To: <20200311135117.9366-1-eric.auger@redhat.com> References: <20200311135117.9366-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 205.139.110.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, drjones@redhat.com, andre.przywara@arm.com, thuth@redhat.com, yuzenghui@huawei.com, alexandru.elisei@arm.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Introduce an helper functions to register - a new device, characterized by its device id and the max number of event IDs that dimension its ITT (Interrupt Translation Table). The function allocates the ITT. - a new collection, characterized by its ID and the target processing engine (PE). Signed-off-by: Eric Auger --- v3 -> v4: - remove unused its_baser variable from its_create_device() - use get_order() - device->itt becomes a GVA instead of GPA v2 -> v3: - s/report_abort/assert v1 -> v2: - s/nb_/nr_ --- lib/arm64/asm/gic-v3-its.h | 19 +++++++++++++++++++ lib/arm64/gic-v3-its.c | 38 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 57 insertions(+) diff --git a/lib/arm64/asm/gic-v3-its.h b/lib/arm64/asm/gic-v3-its.h index fec6767..8c4ed31 100644 --- a/lib/arm64/asm/gic-v3-its.h +++ b/lib/arm64/asm/gic-v3-its.h @@ -27,6 +27,19 @@ struct its_baser { }; =20 #define GITS_BASER_NR_REGS 8 +#define GITS_MAX_DEVICES 8 +#define GITS_MAX_COLLECTIONS 8 + +struct its_device { + u32 device_id; /* device ID */ + u32 nr_ites; /* Max Interrupt Translation Entries */ + void *itt; /* Interrupt Translation Table GVA */ +}; + +struct its_collection { + u64 target_address; + u16 col_id; +}; =20 struct its_data { void *base; @@ -35,6 +48,10 @@ struct its_data { struct its_baser coll_baser; struct its_cmd_block *cmd_base; struct its_cmd_block *cmd_write; + struct its_device devices[GITS_MAX_DEVICES]; + u32 nr_devices; /* Allocated Devices */ + struct its_collection collections[GITS_MAX_COLLECTIONS]; + u32 nr_collections; /* Allocated Collections */ }; =20 extern struct its_data its_data; @@ -89,5 +106,7 @@ extern void its_parse_typer(void); extern void its_init(void); extern int its_baser_lookup(int i, struct its_baser *baser); extern void its_enable_defaults(void); +extern struct its_device *its_create_device(u32 dev_id, int nr_ites); +extern struct its_collection *its_create_collection(u32 col_id, u32 targ= et_pe); =20 #endif /* _ASMARM64_GIC_V3_ITS_H_ */ diff --git a/lib/arm64/gic-v3-its.c b/lib/arm64/gic-v3-its.c index c431f31..442dcf0 100644 --- a/lib/arm64/gic-v3-its.c +++ b/lib/arm64/gic-v3-its.c @@ -110,3 +110,41 @@ void its_enable_defaults(void) =20 writel(GITS_CTLR_ENABLE, its_data.base + GITS_CTLR); } + +struct its_device *its_create_device(u32 device_id, int nr_ites) +{ + struct its_device *new; + unsigned long n; + + assert(its_data.nr_devices < GITS_MAX_DEVICES); + + new =3D &its_data.devices[its_data.nr_devices]; + + new->device_id =3D device_id; + new->nr_ites =3D nr_ites; + + n =3D (its_data.typer.ite_size * nr_ites) >> PAGE_SHIFT; + new->itt =3D alloc_pages(get_order(n)); + + its_data.nr_devices++; + return new; +} + +struct its_collection *its_create_collection(u32 col_id, u32 pe) +{ + struct its_collection *new; + + assert(its_data.nr_collections < GITS_MAX_COLLECTIONS); + + new =3D &its_data.collections[its_data.nr_collections]; + + new->col_id =3D col_id; + + if (its_data.typer.pta) + new->target_address =3D (u64)gicv3_data.redist_base[pe]; + else + new->target_address =3D pe << 16; + + its_data.nr_collections++; + return new; +} --=20 2.20.1