From: Nipun Gupta <nipun.gupta@amd.com> To: <robh+dt@kernel.org>, <krzysztof.kozlowski+dt@linaro.org>, <gregkh@linuxfoundation.org>, <rafael@kernel.org>, <eric.auger@redhat.com>, <alex.williamson@redhat.com>, <cohuck@redhat.com>, <puneet.gupta@amd.com>, <song.bao.hua@hisilicon.com>, <mchehab+huawei@kernel.org>, <maz@kernel.org>, <f.fainelli@gmail.com>, <jeffrey.l.hugo@gmail.com>, <saravanak@google.com>, <Michael.Srba@seznam.cz>, <mani@kernel.org>, <yishaih@nvidia.com>, <jgg@ziepe.ca>, <jgg@nvidia.com>, <robin.murphy@arm.com>, <will@kernel.org>, <joro@8bytes.org>, <masahiroy@kernel.org>, <ndesaulniers@google.com>, <linux-arm-kernel@lists.infradead.org>, <linux-kbuild@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>, <kvm@vger.kernel.org> Cc: <okaya@kernel.org>, <harpreet.anand@amd.com>, <nikhil.agarwal@amd.com>, <michal.simek@amd.com>, <aleksandar.radovanovic@amd.com>, <git@amd.com>, Nipun Gupta <nipun.gupta@amd.com> Subject: [RFC PATCH v4 4/8] bux/cdx: support dma configuration for CDX devices Date: Fri, 14 Oct 2022 10:10:45 +0530 [thread overview] Message-ID: <20221014044049.2557085-5-nipun.gupta@amd.com> (raw) In-Reply-To: <20221014044049.2557085-1-nipun.gupta@amd.com> With CDX bus supported in SMMU, devices on CDX bus can be configured to support DMA configuration. This change adds the dma configure callback for CDX bus. Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> --- drivers/bus/cdx/cdx.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/bus/cdx/cdx.c b/drivers/bus/cdx/cdx.c index 5a366f4ae69c..b2a7e0b34df8 100644 --- a/drivers/bus/cdx/cdx.c +++ b/drivers/bus/cdx/cdx.c @@ -57,6 +57,7 @@ #include <linux/init.h> #include <linux/kernel.h> +#include <linux/of_device.h> #include <linux/slab.h> #include <linux/cdx/cdx_bus.h> @@ -180,10 +181,26 @@ static void cdx_remove(struct device *dev) cdx_drv->remove(cdx_dev); } +static int cdx_dma_configure(struct device *dev) +{ + struct cdx_device *cdx_dev = to_cdx_device(dev); + u32 input_id = cdx_dev->req_id; + int ret; + + ret = of_dma_configure_id(dev, dev->parent->of_node, 0, &input_id); + if (ret) { + dev_err(dev, "of_dma_configure_id() failed\n"); + return ret; + } + + return 0; +} + struct bus_type cdx_bus_type = { .name = "cdx", .match = cdx_bus_match, .remove = cdx_remove, + .dma_configure = cdx_dma_configure, }; EXPORT_SYMBOL_GPL(cdx_bus_type); -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Nipun Gupta <nipun.gupta@amd.com> To: <robh+dt@kernel.org>, <krzysztof.kozlowski+dt@linaro.org>, <gregkh@linuxfoundation.org>, <rafael@kernel.org>, <eric.auger@redhat.com>, <alex.williamson@redhat.com>, <cohuck@redhat.com>, <puneet.gupta@amd.com>, <song.bao.hua@hisilicon.com>, <mchehab+huawei@kernel.org>, <maz@kernel.org>, <f.fainelli@gmail.com>, <jeffrey.l.hugo@gmail.com>, <saravanak@google.com>, <Michael.Srba@seznam.cz>, <mani@kernel.org>, <yishaih@nvidia.com>, <jgg@ziepe.ca>, <jgg@nvidia.com>, <robin.murphy@arm.com>, <will@kernel.org>, <joro@8bytes.org>, <masahiroy@kernel.org>, <ndesaulniers@google.com>, <linux-arm-kernel@lists.infradead.org>, <linux-kbuild@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>, <kvm@vger.kernel.org> Cc: <okaya@kernel.org>, <harpreet.anand@amd.com>, <nikhil.agarwal@amd.com>, <michal.simek@amd.com>, <aleksandar.radovanovic@amd.com>, <git@amd.com>, Nipun Gupta <nipun.gupta@amd.com> Subject: [RFC PATCH v4 4/8] bux/cdx: support dma configuration for CDX devices Date: Fri, 14 Oct 2022 10:10:45 +0530 [thread overview] Message-ID: <20221014044049.2557085-5-nipun.gupta@amd.com> (raw) In-Reply-To: <20221014044049.2557085-1-nipun.gupta@amd.com> With CDX bus supported in SMMU, devices on CDX bus can be configured to support DMA configuration. This change adds the dma configure callback for CDX bus. Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> --- drivers/bus/cdx/cdx.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/bus/cdx/cdx.c b/drivers/bus/cdx/cdx.c index 5a366f4ae69c..b2a7e0b34df8 100644 --- a/drivers/bus/cdx/cdx.c +++ b/drivers/bus/cdx/cdx.c @@ -57,6 +57,7 @@ #include <linux/init.h> #include <linux/kernel.h> +#include <linux/of_device.h> #include <linux/slab.h> #include <linux/cdx/cdx_bus.h> @@ -180,10 +181,26 @@ static void cdx_remove(struct device *dev) cdx_drv->remove(cdx_dev); } +static int cdx_dma_configure(struct device *dev) +{ + struct cdx_device *cdx_dev = to_cdx_device(dev); + u32 input_id = cdx_dev->req_id; + int ret; + + ret = of_dma_configure_id(dev, dev->parent->of_node, 0, &input_id); + if (ret) { + dev_err(dev, "of_dma_configure_id() failed\n"); + return ret; + } + + return 0; +} + struct bus_type cdx_bus_type = { .name = "cdx", .match = cdx_bus_match, .remove = cdx_remove, + .dma_configure = cdx_dma_configure, }; EXPORT_SYMBOL_GPL(cdx_bus_type); -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-10-14 4:42 UTC|newest] Thread overview: 198+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-08-03 12:26 [RFC PATCH 0/2] add support for CDX bus MSI domain Nipun Gupta 2022-08-03 12:26 ` Nipun Gupta 2022-08-03 12:26 ` [RFC PATCH 1/2] irqchip: cdx-bus: add cdx-MSI domain with gic-its domain as parent Nipun Gupta 2022-08-03 12:26 ` Nipun Gupta 2022-08-03 12:33 ` Greg KH 2022-08-03 12:33 ` Greg KH 2022-08-03 12:37 ` Gupta, Nipun 2022-08-03 12:37 ` Gupta, Nipun 2022-08-04 8:49 ` Marc Zyngier 2022-08-04 8:49 ` Marc Zyngier 2022-08-04 9:18 ` Gupta, Nipun 2022-08-04 9:18 ` Gupta, Nipun 2022-08-04 10:38 ` Marc Zyngier 2022-08-04 12:11 ` Gupta, Nipun 2022-08-04 12:11 ` Gupta, Nipun 2022-08-03 12:26 ` [RFC PATCH 2/2] driver core: add compatible string in sysfs for platform devices Nipun Gupta 2022-08-03 12:26 ` Nipun Gupta 2022-08-03 12:31 ` Greg KH 2022-08-03 12:31 ` Greg KH 2022-08-03 12:46 ` Gupta, Nipun 2022-08-03 12:46 ` Gupta, Nipun 2022-08-03 14:16 ` [RFC PATCH 0/2] add support for CDX bus MSI domain Robin Murphy 2022-08-03 14:16 ` Robin Murphy 2022-08-04 4:23 ` Gupta, Nipun 2022-08-04 4:23 ` Gupta, Nipun 2022-08-17 16:00 ` Jason Gunthorpe 2022-08-17 16:00 ` Jason Gunthorpe 2022-08-17 15:05 ` [RFC PATCH v2 0/6] add support for CDX bus controller Nipun Gupta 2022-08-17 15:05 ` [RFC PATCH v2 1/6] Documentation: DT: Add entry for CDX controller Nipun Gupta 2022-08-18 9:54 ` Krzysztof Kozlowski 2022-08-18 9:59 ` Krzysztof Kozlowski 2022-09-05 14:05 ` Gupta, Nipun 2022-09-06 6:55 ` Krzysztof Kozlowski 2022-09-06 7:03 ` Gupta, Nipun 2022-09-06 7:20 ` Krzysztof Kozlowski 2022-08-17 15:05 ` [RFC PATCH v2 2/6] bus/cdx: add the cdx bus driver Nipun Gupta 2022-08-17 15:32 ` Greg KH 2022-08-17 15:46 ` Marc Zyngier 2022-08-22 13:21 ` Gupta, Nipun 2022-08-22 13:29 ` Greg KH 2022-08-24 8:50 ` Gupta, Nipun 2022-08-24 12:11 ` Greg KH 2022-08-24 23:31 ` Jason Gunthorpe 2022-08-25 18:38 ` Saravana Kannan 2022-08-25 19:57 ` Robin Murphy 2022-08-26 0:08 ` Jason Gunthorpe 2022-08-29 4:49 ` Gupta, Nipun 2022-08-29 4:49 ` Gupta, Nipun 2022-08-29 15:31 ` Jason Gunthorpe 2022-08-30 7:06 ` Gupta, Nipun 2022-08-30 11:25 ` Robin Murphy 2022-08-30 13:01 ` Jason Gunthorpe 2022-08-30 13:12 ` Gupta, Nipun 2022-08-17 15:05 ` [RFC PATCH v2 3/6] bus/cdx: add cdx-MSI domain with gic-its domain as parent Nipun Gupta 2022-08-17 15:33 ` Greg KH 2022-08-17 15:05 ` [RFC PATCH v2 4/6] bus/cdx: add rescan and reset support Nipun Gupta 2022-08-17 15:05 ` [RFC PATCH v2 5/6] vfio: platform: reset: add reset for cdx devices Nipun Gupta 2022-08-17 15:05 ` [RFC PATCH v2 6/6] driver core: add compatible string in sysfs for platform devices Nipun Gupta 2022-08-17 15:30 ` Greg KH 2022-08-17 16:04 ` Saravana Kannan 2022-09-05 13:54 ` Gupta, Nipun 2022-09-06 13:47 ` [RFC PATCH v3 0/7] add support for CDX bus Nipun Gupta 2022-09-06 13:47 ` Nipun Gupta 2022-09-06 13:47 ` [RFC PATCH v3 1/7] dt-bindings: bus: add CDX bus device tree bindings Nipun Gupta 2022-09-06 13:47 ` Nipun Gupta 2022-09-06 17:46 ` Rob Herring 2022-09-06 17:46 ` Rob Herring 2022-09-07 3:13 ` Gupta, Nipun 2022-09-07 3:13 ` Gupta, Nipun 2022-09-08 10:51 ` Krzysztof Kozlowski 2022-09-08 10:51 ` Krzysztof Kozlowski 2022-09-06 13:47 ` [RFC PATCH v3 2/7] bus/cdx: add the cdx bus driver Nipun Gupta 2022-09-06 13:47 ` Nipun Gupta 2022-09-07 0:32 ` Saravana Kannan 2022-09-07 0:32 ` Saravana Kannan 2022-09-07 3:21 ` Gupta, Nipun 2022-09-07 3:21 ` Gupta, Nipun 2022-09-07 18:06 ` Saravana Kannan 2022-09-07 18:06 ` Saravana Kannan 2022-09-07 12:32 ` Greg KH 2022-09-07 12:32 ` Greg KH 2022-09-08 13:29 ` Gupta, Nipun 2022-09-08 13:29 ` Gupta, Nipun 2022-09-06 13:47 ` [RFC PATCH v3 3/7] iommu/arm-smmu-v3: support ops registration for CDX bus Nipun Gupta 2022-09-06 13:47 ` Nipun Gupta 2022-09-07 0:10 ` Saravana Kannan 2022-09-07 0:10 ` Saravana Kannan 2022-09-07 3:17 ` Gupta, Nipun 2022-09-07 3:17 ` Gupta, Nipun 2022-09-07 8:27 ` Robin Murphy 2022-09-07 8:27 ` Robin Murphy 2022-09-07 18:24 ` Saravana Kannan 2022-09-07 18:24 ` Saravana Kannan 2022-09-07 20:40 ` Robin Murphy 2022-09-07 20:40 ` Robin Murphy 2022-09-08 0:14 ` Saravana Kannan 2022-09-08 0:14 ` Saravana Kannan 2022-09-06 13:47 ` [RFC PATCH v3 4/7] bus/cdx: add cdx-MSI domain with gic-its domain as parent Nipun Gupta 2022-09-06 13:47 ` Nipun Gupta 2022-09-06 17:19 ` Jason Gunthorpe 2022-09-06 17:19 ` Jason Gunthorpe 2022-09-07 11:17 ` Marc Zyngier 2022-09-07 11:17 ` Marc Zyngier 2022-09-07 11:33 ` Robin Murphy 2022-09-07 11:33 ` Robin Murphy 2022-09-07 12:14 ` Marc Zyngier 2022-09-07 12:14 ` Marc Zyngier 2022-09-07 11:35 ` Radovanovic, Aleksandar 2022-09-07 11:35 ` Radovanovic, Aleksandar 2022-09-07 12:32 ` Marc Zyngier 2022-09-07 13:18 ` Radovanovic, Aleksandar 2022-09-07 13:18 ` Radovanovic, Aleksandar 2022-09-08 8:08 ` Marc Zyngier 2022-09-08 9:51 ` Radovanovic, Aleksandar 2022-09-08 9:51 ` Radovanovic, Aleksandar 2022-09-08 11:49 ` Robin Murphy 2022-09-08 11:49 ` Robin Murphy 2022-09-08 14:18 ` Marc Zyngier 2022-09-07 13:18 ` Marc Zyngier 2022-09-07 13:18 ` Marc Zyngier 2022-09-08 14:13 ` Gupta, Nipun 2022-09-08 14:13 ` Gupta, Nipun 2022-09-08 14:29 ` Marc Zyngier 2022-09-09 6:32 ` Gupta, Nipun 2022-09-09 6:32 ` Gupta, Nipun 2022-10-12 10:04 ` Gupta, Nipun 2022-10-12 10:04 ` Gupta, Nipun 2022-10-12 10:34 ` Radovanovic, Aleksandar 2022-10-12 10:34 ` Radovanovic, Aleksandar 2022-10-12 13:02 ` Jason Gunthorpe 2022-10-12 13:02 ` Jason Gunthorpe 2022-10-12 13:37 ` Radovanovic, Aleksandar 2022-10-12 13:37 ` Radovanovic, Aleksandar 2022-10-12 14:38 ` Jason Gunthorpe 2022-10-12 14:38 ` Jason Gunthorpe 2022-10-12 15:09 ` Radovanovic, Aleksandar 2022-10-12 15:09 ` Radovanovic, Aleksandar 2022-10-13 12:43 ` Jason Gunthorpe 2022-10-13 12:43 ` Jason Gunthorpe 2022-10-14 11:18 ` Radovanovic, Aleksandar 2022-10-14 11:18 ` Radovanovic, Aleksandar 2022-10-14 11:54 ` gregkh 2022-10-14 11:54 ` gregkh 2022-10-14 12:13 ` Radovanovic, Aleksandar 2022-10-14 12:13 ` Radovanovic, Aleksandar 2022-10-14 13:46 ` gregkh 2022-10-14 13:46 ` gregkh 2022-10-14 13:58 ` Jason Gunthorpe 2022-10-14 13:58 ` Jason Gunthorpe 2022-09-06 13:47 ` [RFC PATCH v3 5/7] bus/cdx: add bus and device attributes Nipun Gupta 2022-09-06 13:47 ` Nipun Gupta 2022-09-06 13:48 ` [RFC PATCH v3 6/7] vfio/cdx: add support for CDX bus Nipun Gupta 2022-09-06 13:48 ` Nipun Gupta 2022-09-06 17:20 ` Jason Gunthorpe 2022-09-06 17:20 ` Jason Gunthorpe 2022-09-06 17:23 ` Gupta, Nipun 2022-09-06 17:23 ` Gupta, Nipun 2022-09-06 13:48 ` [RFC PATCH v3 7/7] vfio/cdx: add interrupt support Nipun Gupta 2022-09-06 13:48 ` Nipun Gupta 2022-10-14 4:40 ` [RFC PATCH v4 0/8] add support for CDX bus Nipun Gupta 2022-10-14 4:40 ` Nipun Gupta 2022-10-14 4:40 ` [RFC PATCH v4 1/8] dt-bindings: bus: add CDX bus device tree bindings Nipun Gupta 2022-10-14 4:40 ` Nipun Gupta 2022-10-14 14:17 ` Rob Herring 2022-10-14 14:17 ` Rob Herring 2022-10-17 10:18 ` Gupta, Nipun 2022-10-17 10:18 ` Gupta, Nipun 2022-10-14 4:40 ` [RFC PATCH v4 2/8] bus/cdx: add the cdx bus driver Nipun Gupta 2022-10-14 4:40 ` Nipun Gupta 2022-10-14 7:15 ` Greg KH 2022-10-14 7:15 ` Greg KH 2022-10-14 8:12 ` Gupta, Nipun 2022-10-14 8:12 ` Gupta, Nipun 2022-10-14 7:18 ` Greg KH 2022-10-14 7:18 ` Greg KH 2022-10-14 8:20 ` Gupta, Nipun 2022-10-14 8:20 ` Gupta, Nipun 2022-10-14 4:40 ` [RFC PATCH v4 3/8] iommu/arm-smmu-v3: support ops registration for CDX bus Nipun Gupta 2022-10-14 4:40 ` Nipun Gupta 2022-10-14 4:51 ` Gupta, Nipun 2022-10-14 4:51 ` Gupta, Nipun 2022-10-14 4:40 ` Nipun Gupta [this message] 2022-10-14 4:40 ` [RFC PATCH v4 4/8] bux/cdx: support dma configuration for CDX devices Nipun Gupta 2022-10-14 4:40 ` [RFC PATCH v4 5/8] bus/cdx: add bus and device attributes Nipun Gupta 2022-10-14 4:40 ` Nipun Gupta 2022-10-14 4:40 ` [RFC PATCH v4 6/8] irq/msi: use implicit msi domain for alloc and free Nipun Gupta 2022-10-14 4:40 ` Nipun Gupta 2022-10-14 4:40 ` [RFC PATCH v4 7/8] bus/cdx: add cdx-MSI domain with gic-its domain as parent Nipun Gupta 2022-10-14 4:40 ` Nipun Gupta 2022-10-17 13:08 ` kernel test robot 2022-11-17 19:10 ` Thomas Gleixner 2022-11-17 19:10 ` Thomas Gleixner 2022-10-14 4:40 ` [RFC PATCH v4 8/8] bus/cdx: add cdx controller Nipun Gupta 2022-10-14 4:40 ` Nipun Gupta 2022-10-14 14:10 ` [RFC PATCH v4 0/8] add support for CDX bus Rob Herring 2022-10-14 14:10 ` Rob Herring 2022-10-17 10:08 ` Gupta, Nipun 2022-10-17 10:08 ` Gupta, Nipun
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