From: laurentiu.tudor@nxp.com
To: devicetree@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Cc: roy.pledge@nxp.com, madalin.bucur@nxp.com, davem@davemloft.net,
shawnguo@kernel.org, leoyang.li@nxp.com,
Laurentiu Tudor <laurentiu.tudor@nxp.com>
Subject: [PATCH 02/21] soc/fsl/bman: map FBPR area in the iommu
Date: Wed, 19 Sep 2018 15:35:54 +0300 [thread overview]
Message-ID: <20180919123613.15092-3-laurentiu.tudor@nxp.com> (raw)
In-Reply-To: <20180919123613.15092-1-laurentiu.tudor@nxp.com>
From: Laurentiu Tudor <laurentiu.tudor@nxp.com>
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 | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/soc/fsl/qbman/bman_ccsr.c b/drivers/soc/fsl/qbman/bman_ccsr.c
index 05c42235dd41..680f67f04fb4 100644
--- 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);
@@ -171,6 +172,7 @@ static int fsl_bman_probe(struct platform_device *pdev)
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;
@@ -216,6 +218,16 @@ static int fsl_bman_probe(struct platform_device *pdev)
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(iommu_get_domain_for_dev(dev),
+ 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);
--
2.17.1
next prev parent reply other threads:[~2018-09-19 12:36 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-19 12:35 [PATCH 00/21] SMMU enablement for NXP LS1043A and LS1046A laurentiu.tudor
2018-09-19 12:35 ` [PATCH 01/21] soc/fsl/qman: fixup liodns only on ppc targets laurentiu.tudor
2018-09-19 12:35 ` laurentiu.tudor [this message]
2018-09-19 12:35 ` [PATCH 03/21] soc/fsl/qman: map FQD and PFDR areas in the iommu laurentiu.tudor
2018-09-19 12:35 ` [PATCH 04/21] soc/fsl/qman-portal: map CENA area " laurentiu.tudor
2018-09-19 12:35 ` [PATCH 05/21] soc/fsl/qbman: add APIs to retrieve the probing status laurentiu.tudor
2018-09-19 12:35 ` [PATCH 06/21] soc/fsl/qman_portals: defer probe after qman's probe laurentiu.tudor
2018-09-19 12:35 ` [PATCH 07/21] soc/fsl/bman_portals: defer probe after bman's probe laurentiu.tudor
2018-09-19 12:36 ` [PATCH 08/21] soc/fsl/qbman_portals: add APIs to retrieve the probing status laurentiu.tudor
2018-09-19 12:36 ` [PATCH 09/21] fsl/fman: backup and restore ICID registers laurentiu.tudor
2018-09-19 12:36 ` [PATCH 10/21] fsl/fman: add API to get the device behind a fman port laurentiu.tudor
2018-09-19 12:36 ` [PATCH 11/21] dpaa_eth: defer probing after qbman laurentiu.tudor
2018-09-19 12:36 ` [PATCH 12/21] dpaa_eth: base dma mappings on the fman rx port laurentiu.tudor
2018-09-19 12:36 ` [PATCH 13/21] dpaa_eth: fix iova handling for contiguous frames laurentiu.tudor
2018-09-19 12:36 ` [PATCH 14/21] dpaa_eth: fix iova handling for sg frames laurentiu.tudor
2018-09-19 12:36 ` [PATCH 15/21] dpaa_eth: fix SG frame cleanup laurentiu.tudor
2018-09-19 12:36 ` [PATCH 16/21] arm64: dts: ls1046a: add smmu node laurentiu.tudor
2018-09-19 13:30 ` Robin Murphy
2018-09-19 13:51 ` Laurentiu Tudor
2018-09-19 12:36 ` [PATCH 17/21] arm64: dts: ls1043a: " laurentiu.tudor
2018-09-19 12:36 ` [PATCH 18/21] arm64: dts: ls104xa: set mask to drop TBU ID from StreamID laurentiu.tudor
2018-09-19 13:41 ` Robin Murphy
2018-09-19 14:06 ` Laurentiu Tudor
2018-09-19 12:36 ` [PATCH 19/21] arm64: dts: ls104x: add missing dma ranges property laurentiu.tudor
2018-09-19 12:36 ` [PATCH 20/21] arm64: dts: ls104x: add iommu-map to pci controllers laurentiu.tudor
2018-09-19 12:36 ` [PATCH 21/21] arm64: dts: ls104x: make dma-coherent global to the SoC laurentiu.tudor
2018-09-19 13:25 ` [PATCH 00/21] SMMU enablement for NXP LS1043A and LS1046A Robin Murphy
2018-09-19 14:18 ` Laurentiu Tudor
2018-09-19 14:37 ` Robin Murphy
2018-09-20 10:38 ` Laurentiu Tudor
2018-09-20 11:49 ` Robin Murphy
2018-09-20 14:33 ` Laurentiu Tudor
2018-09-20 19:07 ` Li Yang
2018-09-21 7:32 ` Laurentiu Tudor
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