From nobody Mon Feb 9 07:05:24 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1576505153; cv=none; d=zohomail.com; s=zohoarc; b=N1UpUpTA8iujIWFKdEpTQrcdxCvXw7errQvVGh+YRlZdrlS2Z4MgTKLboIkQP8v1n9sxvlRizSfxlV4DO0kOrlLTO2ijz03bKmzrWW6nzT/pfQh0p6gxHmgsa6KvYGqwcok6VL/QJBB9zflH56TVpBpIEJ7ZZvrFEDiQiw4+wRw= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1576505153; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; 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Mon, 16 Dec 2019 14:04:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1576505053; 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=OCRQ/pdsIh4TpbiB2k9WKBIlHq8frf2VL5aV01rBiHQ=; b=eHhVD94OqnPQ/aKluQHF3Q743GPiau8yLs+1UY6ZGrXBoX0zFkHsn9bbjeV+ESfCBoSxnk CfzFafFqLJ19sjc7wXJ7yEiot7cOOEcaWe+2P8uvSAp6uJvZ4x3u5g49OLuj8DJ+Hg2z82 nIT+D1/a+yOmeqPEhmY95sHNvvAm2vE= X-MC-Unique: d9quq6-aOwC9kim1AWnO3A-1 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 09/16] arm/arm64: ITS: Enable/Disable LPIs at re-distributor level Date: Mon, 16 Dec 2019 15:02:28 +0100 Message-Id: <20191216140235.10751-10-eric.auger@redhat.com> In-Reply-To: <20191216140235.10751-1-eric.auger@redhat.com> References: <20191216140235.10751-1-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] [fuzzy] 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" This helper function enables or disables the signaling of LPIs at redistributor level. Signed-off-by: Eric Auger --- lib/arm/asm/gic-v3-its.h | 1 + lib/arm/gic-v3-its.c | 18 ++++++++++++++++++ 2 files changed, 19 insertions(+) diff --git a/lib/arm/asm/gic-v3-its.h b/lib/arm/asm/gic-v3-its.h index ed42707..d56a17f 100644 --- a/lib/arm/asm/gic-v3-its.h +++ b/lib/arm/asm/gic-v3-its.h @@ -138,6 +138,7 @@ extern struct its_baser *its_lookup_baser(int type); extern void set_lpi_config(int n, u8 val); extern u8 get_lpi_config(int n); extern void set_pending_table_bit(int rdist, int n, bool set); +extern void gicv3_rdist_ctrl_lpi(u32 redist, bool set); =20 #endif /* !__ASSEMBLY__ */ #endif /* _ASMARM_GIC_V3_ITS_H_ */ diff --git a/lib/arm/gic-v3-its.c b/lib/arm/gic-v3-its.c index 8b6a095..b0f7714 100644 --- a/lib/arm/gic-v3-its.c +++ b/lib/arm/gic-v3-its.c @@ -225,3 +225,21 @@ void init_cmd_queue(void) writeq(0, its_data.base + GITS_CWRITER); writeq(0, its_data.base + GITS_CREADR); } + +void gicv3_rdist_ctrl_lpi(u32 redist, bool set) +{ + void *ptr; + u64 val; + + if (redist >=3D nr_cpus) + report_abort("%s redist=3D%d >=3D cpu_count=3D%d\n", + __func__, redist, nr_cpus); + + ptr =3D gicv3_data.redist_base[redist]; + val =3D readl(ptr + GICR_CTLR); + if (set) + val |=3D GICR_CTLR_ENABLE_LPIS; + else + val &=3D ~GICR_CTLR_ENABLE_LPIS; + writel(val, ptr + GICR_CTLR); +} --=20 2.20.1