From: Jean-Philippe Brucker <jean-philippe@linaro.org>
To: joro@8bytes.org, will@kernel.org
Cc: devicetree@vger.kernel.org, linux-acpi@vger.kernel.org,
Jean-Philippe Brucker <jean-philippe@linaro.org>,
guohanjun@huawei.com, rjw@rjwysocki.net,
iommu@lists.linux-foundation.org, robh+dt@kernel.org,
linux-accelerators@lists.ozlabs.org, sudeep.holla@arm.com,
vivek.gautam@arm.com, zhangfei.gao@linaro.org,
robin.murphy@arm.com, linux-arm-kernel@lists.infradead.org,
lenb@kernel.org
Subject: [PATCH v9 09/10] ACPI/IORT: Enable stall support for platform devices
Date: Fri, 8 Jan 2021 15:52:17 +0100 [thread overview]
Message-ID: <20210108145217.2254447-10-jean-philippe@linaro.org> (raw)
In-Reply-To: <20210108145217.2254447-1-jean-philippe@linaro.org>
Copy the "Stall supported" bit, that tells whether a named component
supports stall, into the dma-can-stall device property.
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
---
v9: dropped fwspec member in favor of device properties
---
drivers/acpi/arm64/iort.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index c9a8bbb74b09..42820d7eb869 100644
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -968,13 +968,15 @@ static int iort_pci_iommu_init(struct pci_dev *pdev, u16 alias, void *data)
static void iort_named_component_init(struct device *dev,
struct acpi_iort_node *node)
{
- struct property_entry props[2] = {};
+ struct property_entry props[3] = {};
struct acpi_iort_named_component *nc;
nc = (struct acpi_iort_named_component *)node->node_data;
props[0] = PROPERTY_ENTRY_U32("pasid-num-bits",
FIELD_GET(ACPI_IORT_NC_PASID_BITS,
nc->node_flags));
+ if (nc->node_flags & ACPI_IORT_NC_STALL_SUPPORTED)
+ props[1] = PROPERTY_ENTRY_BOOL("dma-can-stall");
if (device_add_properties(dev, props))
dev_warn(dev, "Could not add device properties\n");
--
2.29.2
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next prev parent reply other threads:[~2021-01-08 15:02 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-08 14:52 [PATCH v9 00/10] iommu: I/O page faults for SMMUv3 Jean-Philippe Brucker
2021-01-08 14:52 ` [PATCH v9 01/10] iommu: Remove obsolete comment Jean-Philippe Brucker
2021-01-19 11:11 ` Jonathan Cameron
2021-01-20 17:41 ` Jean-Philippe Brucker
2021-01-08 14:52 ` [PATCH v9 02/10] iommu/arm-smmu-v3: Use device properties for pasid-num-bits Jean-Philippe Brucker
2021-01-19 11:22 ` Jonathan Cameron
2021-01-08 14:52 ` [PATCH v9 03/10] iommu: Separate IOMMU_DEV_FEAT_IOPF from IOMMU_DEV_FEAT_SVA Jean-Philippe Brucker
2021-01-12 4:31 ` Lu Baolu
2021-01-12 9:16 ` Jean-Philippe Brucker
2021-01-13 2:49 ` Lu Baolu
2021-01-13 8:10 ` Tian, Kevin
2021-01-14 16:41 ` Jean-Philippe Brucker
2021-01-16 3:54 ` Lu Baolu
2021-01-18 6:54 ` Tian, Kevin
2021-01-19 10:16 ` Jean-Philippe Brucker
2021-01-20 1:57 ` Lu Baolu
2021-01-08 14:52 ` [PATCH v9 04/10] iommu/vt-d: Support IOMMU_DEV_FEAT_IOPF Jean-Philippe Brucker
2021-01-08 14:52 ` [PATCH v9 05/10] uacce: Enable IOMMU_DEV_FEAT_IOPF Jean-Philippe Brucker
2021-01-11 3:29 ` Zhangfei Gao
2021-01-19 12:27 ` Jonathan Cameron
2021-01-20 17:42 ` Jean-Philippe Brucker
2021-01-20 20:47 ` Dave Jiang
2021-01-22 11:53 ` Zhou Wang
2021-01-22 15:43 ` Dave Jiang
2021-01-08 14:52 ` [PATCH v9 06/10] iommu: Add a page fault handler Jean-Philippe Brucker
2021-01-19 13:38 ` Jonathan Cameron
2021-01-20 17:43 ` Jean-Philippe Brucker
2021-01-08 14:52 ` [PATCH v9 07/10] iommu/arm-smmu-v3: Maintain a SID->device structure Jean-Philippe Brucker
2021-01-19 13:51 ` Jonathan Cameron
2021-01-08 14:52 ` [PATCH v9 08/10] dt-bindings: document stall property for IOMMU masters Jean-Philippe Brucker
2021-01-08 14:52 ` Jean-Philippe Brucker [this message]
2021-01-08 14:52 ` [PATCH v9 10/10] iommu/arm-smmu-v3: Add stall support for platform devices Jean-Philippe Brucker
2021-01-19 17:28 ` Robin Murphy
2021-01-20 17:55 ` Jean-Philippe Brucker
2021-01-11 3:26 ` [PATCH v9 00/10] iommu: I/O page faults for SMMUv3 Zhangfei Gao
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