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=-6.5 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,URIBL_BLOCKED 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 A0BBAC2BA15 for ; Sat, 4 Apr 2020 14:39:29 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 59E38206F5 for ; Sat, 4 Apr 2020 14:39:29 +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="MR3ADrAt" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 59E38206F5 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 13B904B179; Sat, 4 Apr 2020 10:39:29 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@redhat.com Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id k6n1rtiKFhxs; Sat, 4 Apr 2020 10:39:27 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id E48D14B218; Sat, 4 Apr 2020 10:39:27 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 861444B19B for ; Sat, 4 Apr 2020 10:39:26 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 6zm9hE4Atiug for ; Sat, 4 Apr 2020 10:39:25 -0400 (EDT) Received: from us-smtp-delivery-1.mimecast.com (us-smtp-delivery-1.mimecast.com [205.139.110.120]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 78F1C4B202 for ; Sat, 4 Apr 2020 10:39:25 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1586011165; 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=AEz5troQ6ynHVc5o8x3G+52JS9FvzhU5HuoUMu7WhdU=; b=MR3ADrAtK+xXqqFHZ2F3X4OuohkvUdDFRAS6f8emX6u7/LRmqfXqmW+dk5JEeE2X4aF+Nn ckBpG4oMFwK7RjJPZOwSphnqq2FtSEpoYLrFg2y/6nvDkdVKwZOHF8UQWS3ukANgzKYTfr f6FevnqYCX2S6kgOZ6LtUR/9sKNQ13E= 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-74-YhXihnf-PdCSPhTOdbv3gA-1; Sat, 04 Apr 2020 10:39:22 -0400 X-MC-Unique: YhXihnf-PdCSPhTOdbv3gA-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id D54AF18AB2C5; Sat, 4 Apr 2020 14:39:21 +0000 (UTC) Received: from kamzik.brq.redhat.com (unknown [10.40.192.30]) by smtp.corp.redhat.com (Postfix) with ESMTP id 356C99B912; Sat, 4 Apr 2020 14:39:17 +0000 (UTC) From: Andrew Jones To: pbonzini@redhat.com Subject: [PULL kvm-unit-tests 34/39] arm/arm64: ITS: Device and collection Initialization Date: Sat, 4 Apr 2020 16:37:26 +0200 Message-Id: <20200404143731.208138-35-drjones@redhat.com> In-Reply-To: <20200404143731.208138-1-drjones@redhat.com> References: <20200404143731.208138-1-drjones@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Cc: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu From: Eric Auger 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 Reviewed-by: Zenghui Yu Signed-off-by: Andrew Jones --- 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 7e03e4ce2b17..628eedf9f8ed 100644 --- a/lib/arm64/asm/gic-v3-its.h +++ b/lib/arm64/asm/gic-v3-its.h @@ -31,6 +31,19 @@ struct its_baser { }; #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; +}; 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]; + u16 nr_collections; /* Allocated Collections */ }; 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(u16 col_id, u32 target_pe); #endif /* _ASMARM64_GIC_V3_ITS_H_ */ diff --git a/lib/arm64/gic-v3-its.c b/lib/arm64/gic-v3-its.c index cf176b74a277..ca91c3dd1108 100644 --- a/lib/arm64/gic-v3-its.c +++ b/lib/arm64/gic-v3-its.c @@ -109,3 +109,41 @@ void its_enable_defaults(void) 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 = &its_data.devices[its_data.nr_devices]; + + new->device_id = device_id; + new->nr_ites = nr_ites; + + n = (its_data.typer.ite_size * nr_ites) >> PAGE_SHIFT; + new->itt = alloc_pages(get_order(n)); + + its_data.nr_devices++; + return new; +} + +struct its_collection *its_create_collection(u16 col_id, u32 pe) +{ + struct its_collection *new; + + assert(its_data.nr_collections < GITS_MAX_COLLECTIONS); + + new = &its_data.collections[its_data.nr_collections]; + + new->col_id = col_id; + + if (its_data.typer.pta) + new->target_address = (u64)gicv3_data.redist_base[pe]; + else + new->target_address = pe << 16; + + its_data.nr_collections++; + return new; +} -- 2.25.1 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm