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 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 DE6C1C33C9E for ; Tue, 28 Jan 2020 10:36:22 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 92F6224686 for ; Tue, 28 Jan 2020 10:36:22 +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="VfU4+uf0" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 92F6224686 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 39DCC4A531; Tue, 28 Jan 2020 05:36:22 -0500 (EST) 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 yiw7cfhaM9b2; Tue, 28 Jan 2020 05:36:21 -0500 (EST) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 123AB4A5BD; Tue, 28 Jan 2020 05:36:21 -0500 (EST) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id DBB934A5BD for ; Tue, 28 Jan 2020 05:36:19 -0500 (EST) 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 rcTnRiiehBXn for ; Tue, 28 Jan 2020 05:36:18 -0500 (EST) Received: from us-smtp-1.mimecast.com (us-smtp-2.mimecast.com [207.211.31.81]) by mm01.cs.columbia.edu (Postfix) with ESMTP id E53F74A531 for ; Tue, 28 Jan 2020 05:36:18 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1580207778; 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=54NPiD/s7NhXdHaaTgCUqqDcRiDlHdCFtYHnxyYOpT4=; b=VfU4+uf0eGdW8Nsk1hU2aAaus7IH2Br4UmxWhIj22nxKG+nBUN+byu//5H/uG2B/c6Iw+I oPYRuWLp0DT5hdH6KLjzi8z6RZj92xrBTNaCAx3sla2wP40OgSaAJZpfvfLq5cMnlD8sQX bsq3pnktRa/p/FPblFKkjmbETIIZvK4= 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-137-rD51XNLdNO2IvgzW0-stYg-1; Tue, 28 Jan 2020 05:36:17 -0500 X-MC-Unique: rD51XNLdNO2IvgzW0-stYg-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 73910100550E; Tue, 28 Jan 2020 10:36:15 +0000 (UTC) Received: from laptop.redhat.com (ovpn-116-37.ams2.redhat.com [10.36.116.37]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8F6981001B30; Tue, 28 Jan 2020 10:36:06 +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 v3 08/14] arm/arm64: ITS: its_enable_defaults Date: Tue, 28 Jan 2020 11:34:53 +0100 Message-Id: <20200128103459.19413-9-eric.auger@redhat.com> In-Reply-To: <20200128103459.19413-1-eric.auger@redhat.com> References: <20200128103459.19413-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Cc: andre.przywara@arm.com, thuth@redhat.com 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 its_enable_defaults() is the top init function that allocates the command queue and all the requested tables (device, collection, lpi config and pending tables), enable LPIs at distributor level and ITS level. gicv3_enable_defaults must be called before. Signed-off-by: Eric Auger --- v2 -> v3: - introduce its_setup_baser in this patch - squash "arm/arm64: ITS: Init the command queue" in this patch. --- lib/arm/asm/gic-v3-its.h | 8 ++++ lib/arm/gic-v3-its.c | 89 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 97 insertions(+) diff --git a/lib/arm/asm/gic-v3-its.h b/lib/arm/asm/gic-v3-its.h index 815c515..fe73c04 100644 --- a/lib/arm/asm/gic-v3-its.h +++ b/lib/arm/asm/gic-v3-its.h @@ -36,6 +36,8 @@ struct its_data { void *base; struct its_typer typer; struct its_baser baser[GITS_BASER_NR_REGS]; + struct its_cmd_block *cmd_base; + struct its_cmd_block *cmd_write; }; extern struct its_data its_data; @@ -88,10 +90,16 @@ extern struct its_data its_data; #define GITS_BASER_TYPE_DEVICE 1 #define GITS_BASER_TYPE_COLLECTION 4 + +struct its_cmd_block { + u64 raw_cmd[4]; +}; + extern void its_parse_typer(void); extern void its_init(void); extern int its_parse_baser(int i, struct its_baser *baser); extern struct its_baser *its_lookup_baser(int type); +extern void its_enable_defaults(void); #else /* __arm__ */ diff --git a/lib/arm/gic-v3-its.c b/lib/arm/gic-v3-its.c index 2c0ce13..d1e7e52 100644 --- a/lib/arm/gic-v3-its.c +++ b/lib/arm/gic-v3-its.c @@ -86,3 +86,92 @@ void its_init(void) its_parse_baser(i, &its_data.baser[i]); } +static void its_setup_baser(int i, struct its_baser *baser) +{ + unsigned long n = (baser->nr_pages * baser->psz) >> PAGE_SHIFT; + unsigned long order = is_power_of_2(n) ? fls(n) : fls(n) + 1; + u64 val; + + baser->table_addr = (u64)virt_to_phys(alloc_pages(order)); + + val = ((u64)baser->table_addr | + ((u64)baser->type << GITS_BASER_TYPE_SHIFT) | + ((u64)(baser->esz - 1) << GITS_BASER_ENTRY_SIZE_SHIFT) | + ((baser->nr_pages - 1) << GITS_BASER_PAGES_SHIFT) | + (u64)baser->indirect << 62 | + (u64)baser->valid << 63); + + switch (baser->psz) { + case SZ_4K: + val |= GITS_BASER_PAGE_SIZE_4K; + break; + case SZ_16K: + val |= GITS_BASER_PAGE_SIZE_16K; + break; + case SZ_64K: + val |= GITS_BASER_PAGE_SIZE_64K; + break; + } + + writeq(val, gicv3_its_base() + GITS_BASER + i * 8); +} + +/** + * init_cmd_queue: Allocate the command queue and initialize + * CBASER, CREADR, CWRITER + */ +static void its_cmd_queue_init(void) +{ + unsigned long n = SZ_64K >> PAGE_SHIFT; + unsigned long order = fls(n); + u64 cbaser; + + its_data.cmd_base = (void *)virt_to_phys(alloc_pages(order)); + + cbaser = ((u64)its_data.cmd_base | (SZ_64K / SZ_4K - 1) | GITS_CBASER_VALID); + + writeq(cbaser, its_data.base + GITS_CBASER); + + its_data.cmd_write = its_data.cmd_base; + writeq(0, its_data.base + GITS_CWRITER); +} + +void its_enable_defaults(void) +{ + unsigned int i; + + its_parse_typer(); + + /* Allocate BASER tables (device and collection tables) */ + for (i = 0; i < GITS_BASER_NR_REGS; i++) { + struct its_baser *baser = &its_data.baser[i]; + int ret; + + ret = its_parse_baser(i, baser); + if (ret) + continue; + + switch (baser->type) { + case GITS_BASER_TYPE_DEVICE: + baser->valid = true; + its_setup_baser(i, baser); + break; + case GITS_BASER_TYPE_COLLECTION: + baser->valid = true; + its_setup_baser(i, baser); + break; + default: + break; + } + } + + /* Allocate LPI config and pending tables */ + gicv3_lpi_alloc_tables(); + + its_cmd_queue_init(); + + for (i = 0; i < nr_cpus; i++) + gicv3_lpi_rdist_ctrl(i, true); + + writel(GITS_CTLR_ENABLE, its_data.base + GITS_CTLR); +} -- 2.20.1 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm