From: Rob Herring <robh+dt@kernel.org>
To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE"
<linux-arm-kernel@lists.infradead.org>,
Robin Murphy <robin.murphy@arm.com>,
Joerg Roedel <joro@8bytes.org>,
Laurentiu Tudor <laurentiu.tudor@nxp.com>,
Linux IOMMU <iommu@lists.linux-foundation.org>,
linux-acpi@vger.kernel.org, devicetree@vger.kernel.org,
PCI <linux-pci@vger.kernel.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Hanjun Guo <guohanjun@huawei.com>,
Bjorn Helgaas <bhelgaas@google.com>,
Sudeep Holla <sudeep.holla@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>,
Makarand Pawagi <makarand.pawagi@nxp.com>,
Diana Craciun <diana.craciun@oss.nxp.com>
Subject: Re: [PATCH 07/12] of/device: Add input id to of_dma_configure()
Date: Thu, 21 May 2020 17:02:20 -0600 [thread overview]
Message-ID: <CAL_JsqJw3wyiUrbd1AekwDc5+uqhHi9BwoB-rYpypUEGNgzCtw@mail.gmail.com> (raw)
In-Reply-To: <20200521130008.8266-8-lorenzo.pieralisi@arm.com>
On Thu, May 21, 2020 at 7:00 AM Lorenzo Pieralisi
<lorenzo.pieralisi@arm.com> wrote:
>
> Devices sitting on proprietary busses have a device ID space that
> is owned by the respective bus and related firmware bindings. In order
> to let the generic OF layer handle the input translations to
> an IOMMU id, for such busses the current of_dma_configure() interface
> should be extended in order to allow the bus layer to provide the
> device input id parameter - that is retrieved/assigned in bus
> specific code and firmware.
>
> Augment of_dma_configure() to add an optional input_id parameter,
> leaving current functionality unchanged.
>
> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: Robin Murphy <robin.murphy@arm.com>
> Cc: Joerg Roedel <joro@8bytes.org>
> Cc: Laurentiu Tudor <laurentiu.tudor@nxp.com>
> ---
> drivers/bus/fsl-mc/fsl-mc-bus.c | 4 ++-
> drivers/iommu/of_iommu.c | 53 +++++++++++++++++++++------------
> drivers/of/device.c | 8 +++--
> include/linux/of_device.h | 16 ++++++++--
> include/linux/of_iommu.h | 6 ++--
> 5 files changed, 60 insertions(+), 27 deletions(-)
>
> diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c
> index 40526da5c6a6..8ead3f0238f2 100644
> --- a/drivers/bus/fsl-mc/fsl-mc-bus.c
> +++ b/drivers/bus/fsl-mc/fsl-mc-bus.c
> @@ -118,11 +118,13 @@ static int fsl_mc_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
> static int fsl_mc_dma_configure(struct device *dev)
> {
> struct device *dma_dev = dev;
> + struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
> + u32 input_id = mc_dev->icid;
>
> while (dev_is_fsl_mc(dma_dev))
> dma_dev = dma_dev->parent;
>
> - return of_dma_configure(dev, dma_dev->of_node, 0);
> + return of_dma_configure_id(dev, dma_dev->of_node, 0, &input_id);
> }
>
> static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
> diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
> index ad96b87137d6..4516d5bf6cc9 100644
> --- a/drivers/iommu/of_iommu.c
> +++ b/drivers/iommu/of_iommu.c
> @@ -139,25 +139,53 @@ static int of_pci_iommu_init(struct pci_dev *pdev, u16 alias, void *data)
> return err;
> }
>
> -static int of_fsl_mc_iommu_init(struct fsl_mc_device *mc_dev,
> - struct device_node *master_np)
> +static int of_iommu_configure_dev_id(struct device_node *master_np,
> + struct device *dev,
> + const u32 *id)
Should have read this patch before #6. I guess you could still make
of_pci_iommu_init() call
of_iommu_configure_dev_id.
Rob
next prev parent reply other threads:[~2020-05-21 23:02 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-21 12:59 [PATCH 00/12] ACPI/OF: Upgrade MSI/IOMMU ID mapping APIs Lorenzo Pieralisi
2020-05-21 12:59 ` [PATCH 01/12] ACPI/IORT: Make iort_match_node_callback walk the ACPI namespace for NC Lorenzo Pieralisi
2020-05-21 12:59 ` [PATCH 02/12] ACPI/IORT: Make iort_get_device_domain IRQ domain agnostic Lorenzo Pieralisi
2020-05-21 19:56 ` Bjorn Helgaas
2020-05-21 12:59 ` [PATCH 03/12] ACPI/IORT: Make iort_msi_map_rid() PCI agnostic Lorenzo Pieralisi
2020-05-21 13:00 ` [PATCH 04/12] ACPI/IORT: Remove useless PCI bus walk Lorenzo Pieralisi
2020-05-21 13:00 ` [PATCH 05/12] ACPI/IORT: Add an input ID to acpi_dma_configure() Lorenzo Pieralisi
2020-05-21 13:00 ` [PATCH 06/12] of/iommu: Make of_map_rid() PCI agnostic Lorenzo Pieralisi
2020-05-21 22:47 ` Rob Herring
2020-06-04 14:27 ` Lorenzo Pieralisi
2020-05-21 13:00 ` [PATCH 07/12] of/device: Add input id to of_dma_configure() Lorenzo Pieralisi
2020-05-21 23:02 ` Rob Herring [this message]
2020-06-04 14:49 ` Lorenzo Pieralisi
2020-05-21 13:00 ` [PATCH 08/12] of/irq: make of_msi_map_get_device_domain() bus agnostic Lorenzo Pieralisi
2020-05-21 19:57 ` Bjorn Helgaas
2020-05-21 13:00 ` [PATCH 09/12] dt-bindings: arm: fsl: Add msi-map device-tree binding for fsl-mc bus Lorenzo Pieralisi
2020-05-21 23:10 ` Rob Herring
2020-05-22 9:42 ` Robin Murphy
2020-05-22 9:57 ` Diana Craciun OSS
2020-05-22 14:08 ` Rob Herring
2020-05-22 14:34 ` Robin Murphy
2020-05-22 14:02 ` Rob Herring
2020-05-22 15:38 ` Laurentiu Tudor
2020-05-21 13:00 ` [PATCH 10/12] of/irq: Make of_msi_map_rid() PCI bus agnostic Lorenzo Pieralisi
2020-05-21 23:17 ` Rob Herring
2020-06-04 15:08 ` Lorenzo Pieralisi
2020-05-21 13:00 ` [PATCH 11/12] bus/fsl-mc: Refactor the MSI domain creation in the DPRC driver Lorenzo Pieralisi
2020-05-21 13:00 ` [PATCH 12/12] bus: fsl-mc: Add ACPI support for fsl-mc Lorenzo Pieralisi
2020-05-21 15:03 ` Laurentiu Tudor
2020-05-22 5:32 ` Makarand Pawagi
2020-05-22 9:53 ` Lorenzo Pieralisi
2020-06-19 8:20 ` [PATCH v2 00/12] ACPI/OF: Upgrade MSI/IOMMU ID mapping APIs Lorenzo Pieralisi
2020-06-19 8:20 ` [PATCH v2 01/12] ACPI/IORT: Make iort_match_node_callback walk the ACPI namespace for NC Lorenzo Pieralisi
2020-06-29 4:24 ` Hanjun Guo
2020-06-29 9:05 ` Lorenzo Pieralisi
2020-06-30 3:06 ` Hanjun Guo
2020-06-30 10:24 ` Lorenzo Pieralisi
2020-06-30 13:04 ` Hanjun Guo
2020-07-01 16:12 ` Robin Murphy
2020-07-02 8:22 ` Hanjun Guo
2020-07-09 9:21 ` Lorenzo Pieralisi
2020-07-09 12:48 ` Hanjun Guo
2020-08-18 0:49 ` Hanjun Guo
2020-06-19 8:20 ` [PATCH v2 02/12] ACPI/IORT: Make iort_get_device_domain IRQ domain agnostic Lorenzo Pieralisi
2020-06-19 8:20 ` [PATCH v2 03/12] ACPI/IORT: Make iort_msi_map_rid() PCI agnostic Lorenzo Pieralisi
2020-07-15 9:15 ` Lorenzo Pieralisi
2020-07-21 14:59 ` Bjorn Helgaas
2020-07-27 6:06 ` [EXT] " Makarand Pawagi
2020-06-19 8:20 ` [PATCH v2 04/12] ACPI/IORT: Remove useless PCI bus walk Lorenzo Pieralisi
2020-06-19 8:20 ` [PATCH v2 05/12] ACPI/IORT: Add an input ID to acpi_dma_configure() Lorenzo Pieralisi
2020-07-09 9:35 ` Lorenzo Pieralisi
2020-07-15 9:13 ` Lorenzo Pieralisi
2020-07-28 12:48 ` Lorenzo Pieralisi
2020-07-28 13:00 ` Rafael J. Wysocki
2020-06-19 8:20 ` [PATCH v2 06/12] of/iommu: Make of_map_rid() PCI agnostic Lorenzo Pieralisi
2020-06-22 13:26 ` Joerg Roedel
2020-07-13 23:57 ` Rob Herring
2020-06-19 8:20 ` [PATCH v2 07/12] of/device: Add input id to of_dma_configure() Lorenzo Pieralisi
2020-06-30 21:50 ` Rob Herring
2020-06-19 8:20 ` [PATCH v2 08/12] dt-bindings: arm: fsl: Add msi-map device-tree binding for fsl-mc bus Lorenzo Pieralisi
2020-06-30 21:55 ` Rob Herring
2020-06-19 8:20 ` [PATCH v2 09/12] of/irq: make of_msi_map_get_device_domain() bus agnostic Lorenzo Pieralisi
2020-06-30 21:50 ` Rob Herring
2020-06-19 8:20 ` [PATCH v2 10/12] of/irq: Make of_msi_map_rid() PCI " Lorenzo Pieralisi
2020-06-30 21:56 ` Rob Herring
2020-06-19 8:20 ` [PATCH v2 11/12] bus/fsl-mc: Refactor the MSI domain creation in the DPRC driver Lorenzo Pieralisi
2020-07-15 13:05 ` Marc Zyngier
2020-06-19 8:20 ` [PATCH v2 12/12] bus: fsl-mc: Add ACPI support for fsl-mc Lorenzo Pieralisi
2020-07-01 16:55 ` Laurentiu Tudor
2020-07-09 9:19 ` Lorenzo Pieralisi
2020-07-09 9:26 ` [EXT] " Makarand Pawagi
2020-07-09 10:14 ` Laurentiu Tudor
2020-07-09 10:37 ` Makarand Pawagi
2020-07-09 10:39 ` Laurentiu Tudor
2020-07-09 10:47 ` Diana Craciun OSS
2020-07-09 10:52 ` Makarand Pawagi
2020-07-15 10:06 ` Lorenzo Pieralisi
2020-07-16 3:23 ` Makarand Pawagi
2020-07-16 7:57 ` Marc Zyngier
2020-07-20 16:54 ` [PATCH v2 00/12] ACPI/OF: Upgrade MSI/IOMMU ID mapping APIs Lorenzo Pieralisi
2020-07-21 4:28 ` [EXT] " Makarand Pawagi
2020-07-28 17:01 ` Catalin Marinas
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