diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0002-soc-fsl-bman-map-FBPR-area-in-the-iommu.patch')
-rw-r--r-- | target/linux/layerscape/patches-5.4/701-net-0002-soc-fsl-bman-map-FBPR-area-in-the-iommu.patch | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0002-soc-fsl-bman-map-FBPR-area-in-the-iommu.patch b/target/linux/layerscape/patches-5.4/701-net-0002-soc-fsl-bman-map-FBPR-area-in-the-iommu.patch deleted file mode 100644 index afafe928e4..0000000000 --- a/target/linux/layerscape/patches-5.4/701-net-0002-soc-fsl-bman-map-FBPR-area-in-the-iommu.patch +++ /dev/null @@ -1,47 +0,0 @@ -From 55705ace9136e1c24d92d7ab23e513439eb766e7 Mon Sep 17 00:00:00 2001 -From: Laurentiu Tudor <laurentiu.tudor@nxp.com> -Date: Tue, 3 Apr 2018 17:55:00 +0300 -Subject: [PATCH] soc/fsl/bman: map FBPR area in the iommu - -Add a one-to-one iommu mapping for bman private data memory (FBPR). -This is required for BMAN to work without faults behind an iommu. - -Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> ---- - drivers/soc/fsl/qbman/bman_ccsr.c | 11 +++++++++++ - 1 file changed, 11 insertions(+) - ---- a/drivers/soc/fsl/qbman/bman_ccsr.c -+++ b/drivers/soc/fsl/qbman/bman_ccsr.c -@@ -29,6 +29,7 @@ - */ - - #include "bman_priv.h" -+#include <linux/iommu.h> - - u16 bman_ip_rev; - EXPORT_SYMBOL(bman_ip_rev); -@@ -210,6 +211,7 @@ static int fsl_bman_probe(struct platfor - int ret, err_irq; - struct device *dev = &pdev->dev; - struct device_node *node = dev->of_node; -+ struct iommu_domain *domain; - struct resource *res; - u16 id, bm_pool_cnt; - u8 major, minor; -@@ -257,6 +259,15 @@ static int fsl_bman_probe(struct platfor - - dev_dbg(dev, "Allocated FBPR 0x%llx 0x%zx\n", fbpr_a, fbpr_sz); - -+ /* Create an 1-to-1 iommu mapping for FBPR area */ -+ domain = iommu_get_domain_for_dev(dev); -+ if (domain) { -+ ret = iommu_map(domain, fbpr_a, fbpr_a, fbpr_sz, -+ IOMMU_READ | IOMMU_WRITE | IOMMU_CACHE); -+ if (ret) -+ dev_warn(dev, "failed to iommu_map() %d\n", ret); -+ } -+ - bm_set_memory(fbpr_a, fbpr_sz); - - err_irq = platform_get_irq(pdev, 0); |