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[24.22.235.96]) by smtp.gmail.com with ESMTPSA id v20sm74710362pfn.116.2019.04.15.18.39.31 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 15 Apr 2019 18:39:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=HyeSXtTi0HQGgMHm9SM0E/AgTMzg6uy5FrM4vtsvYjI=; b=kryYvyWFlB1f7D/S0hTTm2TKpmJ0zAdUcYaou7GfWqVAs+0iSZGdI/c+2FMlqUkvLK NDRC7Z38xvI03qLCseG6Sk1GMDJiKpiwh4eD70NONO5VdIPQ2j7PzzwOgz2neVCc0nff rLbj/XcvWN4ZrNH3tmofXTLpGC7bYKPhvr2Yup2s11iukEzWrcAKcfxiXc8UT97LVfUx f/gzuBo7kJy+IklAv3jDK0qFlnCOb0WlNiRSBbgBOw7lalBUIZVFJqP7DQnmHU06CPoU /GqC3O0yoppDgluXmiT6k7C5dbhhmyC9v3MqXVHmx+ebz+XfIGib8KD4epIgqXpha0ST F72A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=HyeSXtTi0HQGgMHm9SM0E/AgTMzg6uy5FrM4vtsvYjI=; b=hyKdJHd9TUAmHyAZsDD+B6ohUWJY1Gyry3WcQk1SCoWEvPD56GWoHc4mKShZtmcUDs p2eCHziHbqa4z1K0fb3VlgiULS6gQMrzg8be8l822EN57CHVuXtiRvaDPW0OuPCSPg6L rNMSbG5dXTClpBdK5ww8QGyeKAkhRahMJZxNo25UopmpgSVwdlBxlmaTO05n3XmbmNoL ribqIO3inENvuPSjN4X/aTliL5ferGc93IhSvRH1iqWKYo0vTLJ/4VkLw0rwqT58/pCa H89H5CI+81Gc/3iD1ch9dvwS+pS9C9caa72vKmPCsDz4ukSPspoRuNX4Gyn8w8i79GZu 8R/A== X-Gm-Message-State: APjAAAWRQb1W45OQ7FsYXC1iIQ58jjq71jJq0X71LyY+gOrwHM9eJViY 9i4pFBRlsNGuY16buCdKNwxrVy4x X-Google-Smtp-Source: APXvYqzqNvGx7U0By9/TNQnOLn5AJOsA62uB5OFhsKoWIscy9BcpVOKniv+wQ6iZihJnljq2X5YmBQ== X-Received: by 2002:a17:902:1124:: with SMTP id d33mr55345928pla.268.1555378772610; Mon, 15 Apr 2019 18:39:32 -0700 (PDT) From: Andrey Smirnov To: qemu-arm@nongnu.org Date: Mon, 15 Apr 2019 18:39:00 -0700 Message-Id: <20190416013902.4941-4-andrew.smirnov@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190416013902.4941-1-andrew.smirnov@gmail.com> References: <20190416013902.4941-1-andrew.smirnov@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::643 Subject: [Qemu-devel] [PATCH 3/5] pci: designware: Update MSI mapping unconditionally X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Andrey Smirnov , Peter Maydell , qemu-devel@nongnu.org, "Michael S . Tsirkin" 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" Expression to calculate update_msi_mapping in code handling writes to DESIGNWARE_PCIE_MSI_INTR0_ENABLE is missing an ! operator and should be: !!root->msi.intr[0].enable ^ !!val; so that MSI mapping is updated when enabled transitions from either "none" -> "any" or "any" -> "none". Since that register shouldn't be written to very often, change the code to update MSI mapping unconditionally instead of trying to fix the update_msi_mapping logic. Signed-off-by: Andrey Smirnov Cc: Peter Maydell Cc: Michael S. Tsirkin Cc: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org Acked-by: Michael S. Tsirkin Reviewed-by: Peter Maydell --- hw/pci-host/designware.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/hw/pci-host/designware.c b/hw/pci-host/designware.c index 29ea313798..6affe823c0 100644 --- a/hw/pci-host/designware.c +++ b/hw/pci-host/designware.c @@ -296,16 +296,10 @@ static void designware_pcie_root_config_write(PCIDevi= ce *d, uint32_t address, root->msi.base |=3D (uint64_t)val << 32; break; =20 - case DESIGNWARE_PCIE_MSI_INTR0_ENABLE: { - const bool update_msi_mapping =3D !root->msi.intr[0].enable ^ !!va= l; - + case DESIGNWARE_PCIE_MSI_INTR0_ENABLE: root->msi.intr[0].enable =3D val; - - if (update_msi_mapping) { - designware_pcie_root_update_msi_mapping(root); - } + designware_pcie_root_update_msi_mapping(root); break; - } =20 case DESIGNWARE_PCIE_MSI_INTR0_MASK: root->msi.intr[0].mask =3D val; --=20 2.20.1