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=-6.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 4ECDEC4332B for ; Fri, 20 Mar 2020 09:25:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2329120767 for ; Fri, 20 Mar 2020 09:25:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="WxosLgGL" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727196AbgCTJZ0 (ORCPT ); Fri, 20 Mar 2020 05:25:26 -0400 Received: from us-smtp-delivery-74.mimecast.com ([216.205.24.74]:55139 "EHLO us-smtp-delivery-74.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727025AbgCTJZ0 (ORCPT ); Fri, 20 Mar 2020 05:25:26 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1584696325; 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=GzU4I4ukTx2E2t19JjBRA8CW2Ze8J6UYP6ITvAKHVr0=; b=WxosLgGLbtf2OQXpUs+923EpQfvkCZlYvwOQTcar96OrOYuSKt0o6c2/MexSnxg9FzJout GGp1JJOUO7yrIYNTydMJR+GcVrpKWaTKWNVdnJ6y4Tnjz8pwYuMRREZ3lDczRrb2XnhkbW Xe7MZc1yfuqFJHrAqOVAyNM0S1BBqcE= 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-233-6M5qn4EFNy-uPiMaDBpZ7A-1; Fri, 20 Mar 2020 05:25:21 -0400 X-MC-Unique: 6M5qn4EFNy-uPiMaDBpZ7A-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 55B7E180457A; Fri, 20 Mar 2020 09:25:19 +0000 (UTC) Received: from laptop.redhat.com (ovpn-113-142.ams2.redhat.com [10.36.113.142]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6930E5C1D8; Fri, 20 Mar 2020 09:25:11 +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 Cc: drjones@redhat.com, andre.przywara@arm.com, peter.maydell@linaro.org, yuzenghui@huawei.com, alexandru.elisei@arm.com, thuth@redhat.com Subject: [kvm-unit-tests PATCH v7 08/13] arm/arm64: ITS: Device and collection Initialization Date: Fri, 20 Mar 2020 10:24:23 +0100 Message-Id: <20200320092428.20880-9-eric.auger@redhat.com> In-Reply-To: <20200320092428.20880-1-eric.auger@redhat.com> References: <20200320092428.20880-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Content-Transfer-Encoding: quoted-printable Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org 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 4683011..adcb642 100644 --- a/lib/arm64/asm/gic-v3-its.h +++ b/lib/arm64/asm/gic-v3-its.h @@ -31,6 +31,19 @@ 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; @@ -39,6 +52,10 @@ 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; @@ -93,5 +110,7 @@ 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 afc66a3..f0a0381 100644 --- a/lib/arm64/gic-v3-its.c +++ b/lib/arm64/gic-v3-its.c @@ -109,3 +109,41 @@ 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