From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S942530AbcJFIqT (ORCPT ); Thu, 6 Oct 2016 04:46:19 -0400 Received: from mx1.redhat.com ([209.132.183.28]:45278 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S942199AbcJFIqO (ORCPT ); Thu, 6 Oct 2016 04:46:14 -0400 From: Eric Auger To: eric.auger@redhat.com, eric.auger.pro@gmail.com, christoffer.dall@linaro.org, marc.zyngier@arm.com, robin.murphy@arm.com, alex.williamson@redhat.com, will.deacon@arm.com, joro@8bytes.org, tglx@linutronix.de, jason@lakedaemon.net, linux-arm-kernel@lists.infradead.org Cc: kvm@vger.kernel.org, drjones@redhat.com, linux-kernel@vger.kernel.org, Bharat.Bhushan@freescale.com, pranav.sawargaonkar@gmail.com, p.fedin@samsung.com, iommu@lists.linux-foundation.org, Jean-Philippe.Brucker@arm.com, yehuday@marvell.com, Manish.Jaggi@caviumnetworks.com Subject: [PATCH v13 07/15] irqchip/gicv3-its: Register the MSI doorbell Date: Thu, 6 Oct 2016 08:45:23 +0000 Message-Id: <1475743531-4780-8-git-send-email-eric.auger@redhat.com> In-Reply-To: <1475743531-4780-1-git-send-email-eric.auger@redhat.com> References: <1475743531-4780-1-git-send-email-eric.auger@redhat.com> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Thu, 06 Oct 2016 08:46:14 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch registers the ITS global doorbell. Registered information are needed to set up the KVM passthrough use case. Signed-off-by: Eric Auger --- v12 -> v13: - use new doorbell registration prototype v11 -> v12: - use new irq_get_msi_doorbell_info name - simplify error handling v10 -> v11: - adapt to new doorbell registration API and implement msi_doorbell_info --- drivers/irqchip/irq-gic-v3-its.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 98ff669..3fc715e 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include @@ -86,6 +87,7 @@ struct its_node { u32 ite_size; u32 device_ids; int numa_node; + struct msi_doorbell_info *doorbell_info; }; #define ITS_ITT_ALIGN SZ_256 @@ -1717,6 +1719,7 @@ static int __init its_probe(struct device_node *node, if (of_property_read_bool(node, "msi-controller")) { struct msi_domain_info *info; + phys_addr_t translater; info = kzalloc(sizeof(*info), GFP_KERNEL); if (!info) { @@ -1724,10 +1727,21 @@ static int __init its_probe(struct device_node *node, goto out_free_tables; } + translater = its->phys_base + GITS_TRANSLATER; + err = msi_doorbell_register_global(translater, sizeof(u32), + true, &its->doorbell_info); + + if (err) { + kfree(info); + goto out_free_tables; + } + + inner_domain = irq_domain_add_tree(node, &its_domain_ops, its); if (!inner_domain) { err = -ENOMEM; kfree(info); + msi_doorbell_unregister_global(its->doorbell_info); goto out_free_tables; } -- 1.9.1 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Auger Subject: [PATCH v13 07/15] irqchip/gicv3-its: Register the MSI doorbell Date: Thu, 6 Oct 2016 08:45:23 +0000 Message-ID: <1475743531-4780-8-git-send-email-eric.auger@redhat.com> References: <1475743531-4780-1-git-send-email-eric.auger@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: drjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Manish.Jaggi-M3mlKVOIwJVv6pq1l3V1OdBPR1lH4CV8@public.gmane.org, p.fedin-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, pranav.sawargaonkar-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, yehuday-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org To: eric.auger-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, eric.auger.pro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, christoffer.dall-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, marc.zyngier-5wv7dgnIgG8@public.gmane.org, robin.murphy-5wv7dgnIgG8@public.gmane.org, alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, will.deacon-5wv7dgnIgG8@public.gmane.org, joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org, tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org, jason-NLaQJdtUoK4Be96aLqz0jA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org Return-path: In-Reply-To: <1475743531-4780-1-git-send-email-eric.auger-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org List-Id: kvm.vger.kernel.org This patch registers the ITS global doorbell. Registered information are needed to set up the KVM passthrough use case. Signed-off-by: Eric Auger --- v12 -> v13: - use new doorbell registration prototype v11 -> v12: - use new irq_get_msi_doorbell_info name - simplify error handling v10 -> v11: - adapt to new doorbell registration API and implement msi_doorbell_info --- drivers/irqchip/irq-gic-v3-its.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 98ff669..3fc715e 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include @@ -86,6 +87,7 @@ struct its_node { u32 ite_size; u32 device_ids; int numa_node; + struct msi_doorbell_info *doorbell_info; }; #define ITS_ITT_ALIGN SZ_256 @@ -1717,6 +1719,7 @@ static int __init its_probe(struct device_node *node, if (of_property_read_bool(node, "msi-controller")) { struct msi_domain_info *info; + phys_addr_t translater; info = kzalloc(sizeof(*info), GFP_KERNEL); if (!info) { @@ -1724,10 +1727,21 @@ static int __init its_probe(struct device_node *node, goto out_free_tables; } + translater = its->phys_base + GITS_TRANSLATER; + err = msi_doorbell_register_global(translater, sizeof(u32), + true, &its->doorbell_info); + + if (err) { + kfree(info); + goto out_free_tables; + } + + inner_domain = irq_domain_add_tree(node, &its_domain_ops, its); if (!inner_domain) { err = -ENOMEM; kfree(info); + msi_doorbell_unregister_global(its->doorbell_info); goto out_free_tables; } -- 1.9.1 From mboxrd@z Thu Jan 1 00:00:00 1970 From: eric.auger@redhat.com (Eric Auger) Date: Thu, 6 Oct 2016 08:45:23 +0000 Subject: [PATCH v13 07/15] irqchip/gicv3-its: Register the MSI doorbell In-Reply-To: <1475743531-4780-1-git-send-email-eric.auger@redhat.com> References: <1475743531-4780-1-git-send-email-eric.auger@redhat.com> Message-ID: <1475743531-4780-8-git-send-email-eric.auger@redhat.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This patch registers the ITS global doorbell. Registered information are needed to set up the KVM passthrough use case. Signed-off-by: Eric Auger --- v12 -> v13: - use new doorbell registration prototype v11 -> v12: - use new irq_get_msi_doorbell_info name - simplify error handling v10 -> v11: - adapt to new doorbell registration API and implement msi_doorbell_info --- drivers/irqchip/irq-gic-v3-its.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 98ff669..3fc715e 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include @@ -86,6 +87,7 @@ struct its_node { u32 ite_size; u32 device_ids; int numa_node; + struct msi_doorbell_info *doorbell_info; }; #define ITS_ITT_ALIGN SZ_256 @@ -1717,6 +1719,7 @@ static int __init its_probe(struct device_node *node, if (of_property_read_bool(node, "msi-controller")) { struct msi_domain_info *info; + phys_addr_t translater; info = kzalloc(sizeof(*info), GFP_KERNEL); if (!info) { @@ -1724,10 +1727,21 @@ static int __init its_probe(struct device_node *node, goto out_free_tables; } + translater = its->phys_base + GITS_TRANSLATER; + err = msi_doorbell_register_global(translater, sizeof(u32), + true, &its->doorbell_info); + + if (err) { + kfree(info); + goto out_free_tables; + } + + inner_domain = irq_domain_add_tree(node, &its_domain_ops, its); if (!inner_domain) { err = -ENOMEM; kfree(info); + msi_doorbell_unregister_global(its->doorbell_info); goto out_free_tables; } -- 1.9.1