diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0003-soc-fsl-qman-map-FQD-and-PFDR-areas-in-the-iommu.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/701-net-0003-soc-fsl-qman-map-FQD-and-PFDR-areas-in-the-iommu.patch | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0003-soc-fsl-qman-map-FQD-and-PFDR-areas-in-the-iommu.patch b/target/linux/layerscape/patches-5.4/701-net-0003-soc-fsl-qman-map-FQD-and-PFDR-areas-in-the-iommu.patch deleted file mode 100644 index 03b8c22465..0000000000 --- a/target/linux/layerscape/patches-5.4/701-net-0003-soc-fsl-qman-map-FQD-and-PFDR-areas-in-the-iommu.patch +++ /dev/null @@ -1,52 +0,0 @@ -From 02638b2627104cd02aff7484bb250d029e05dc5f Mon Sep 17 00:00:00 2001 -From: Laurentiu Tudor <laurentiu.tudor@nxp.com> -Date: Tue, 3 Apr 2018 18:08:48 +0300 -Subject: [PATCH] soc/fsl/qman: map FQD and PFDR areas in the iommu - -Add a one-to-one iommu mapping for qman private data memory areas -(FQD and PFDR). This is required for QMAN to work without faults -behind an iommu. - -Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> ---- - drivers/soc/fsl/qbman/qman_ccsr.c | 15 +++++++++++++++ - 1 file changed, 15 insertions(+) - ---- a/drivers/soc/fsl/qbman/qman_ccsr.c -+++ b/drivers/soc/fsl/qbman/qman_ccsr.c -@@ -29,6 +29,7 @@ - */ - - #include "qman_priv.h" -+#include <linux/iommu.h> - - u16 qman_ip_rev; - EXPORT_SYMBOL(qman_ip_rev); -@@ -755,6 +756,7 @@ static int fsl_qman_probe(struct platfor - { - struct device *dev = &pdev->dev; - struct device_node *node = dev->of_node; -+ struct iommu_domain *domain; - struct resource *res; - int ret, err_irq; - u16 id; -@@ -834,6 +836,19 @@ static int fsl_qman_probe(struct platfor - } - dev_dbg(dev, "Allocated PFDR 0x%llx 0x%zx\n", pfdr_a, pfdr_sz); - -+ /* Create an 1-to-1 iommu mapping for fqd and pfdr areas */ -+ domain = iommu_get_domain_for_dev(dev); -+ if (domain) { -+ ret = iommu_map(domain, fqd_a, fqd_a, fqd_sz, -+ IOMMU_READ | IOMMU_WRITE | IOMMU_CACHE); -+ if (ret) -+ dev_warn(dev, "iommu_map(fqd) failed %d\n", ret); -+ ret = iommu_map(domain, pfdr_a, pfdr_a, pfdr_sz, -+ IOMMU_READ | IOMMU_WRITE | IOMMU_CACHE); -+ if (ret) -+ dev_warn(dev, "iommu_map(pfdr) failed %d\n", ret); -+ } -+ - ret = qman_init_ccsr(dev); - if (ret) { - dev_err(dev, "CCSR setup failed\n"); |