Extend devm_of_pci_get_host_bridge_resources() and
pci_parse_request_of_pci_ranges() helpers to also parse the inbound
addresses from DT 'dma-ranges' and populate a resource list with the
translated addresses. This will help ensure 'dma-ranges' is always
parsed in a consistent way.
Cc: Jingoo Han <jingoohan1@xxxxxxxxx>
Cc: Gustavo Pimentel <gustavo.pimentel@xxxxxxxxxxxx>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Cc: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: Toan Le <toan@xxxxxxxxxxxxxxxxxxxxxx>
Cc: Ley Foon Tan <lftan@xxxxxxxxxx>
Cc: Tom Joseph <tjoseph@xxxxxxxxxxx>
Cc: Ray Jui <rjui@xxxxxxxxxxxx>
Cc: Scott Branden <sbranden@xxxxxxxxxxxx>
Cc: bcm-kernel-feedback-list@xxxxxxxxxxxx
Cc: Ryder Lee <ryder.lee@xxxxxxxxxxxx>
Cc: Karthikeyan Mitran <m.karthikeyan@xxxxxxxxxxxxxx>
Cc: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx>
Cc: Simon Horman <horms@xxxxxxxxxxxx>
Cc: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx>
Cc: Heiko Stuebner <heiko@xxxxxxxxx>
Cc: Michal Simek <michal.simek@xxxxxxxxxx>
Cc: rfi@xxxxxxxxxxxxxxxxxxxxxx
Cc: linux-mediatek@xxxxxxxxxxxxxxxxxxx
Cc: linux-renesas-soc@xxxxxxxxxxxxxxx
Cc: linux-rockchip@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
---
.../pci/controller/dwc/pcie-designware-host.c | 3 +-
drivers/pci/controller/pci-aardvark.c | 2 +-
drivers/pci/controller/pci-ftpci100.c | 3 +-
drivers/pci/controller/pci-host-common.c | 2 +-
drivers/pci/controller/pci-v3-semi.c | 2 +-
drivers/pci/controller/pci-versatile.c | 2 +-
drivers/pci/controller/pci-xgene.c | 1 +
drivers/pci/controller/pcie-altera.c | 2 +-
drivers/pci/controller/pcie-cadence-host.c | 2 +-
drivers/pci/controller/pcie-iproc-platform.c | 1 +
drivers/pci/controller/pcie-mediatek.c | 2 +-
drivers/pci/controller/pcie-mobiveil.c | 4 +-
drivers/pci/controller/pcie-rcar.c | 3 +-
drivers/pci/controller/pcie-rockchip-host.c | 3 +-
drivers/pci/controller/pcie-xilinx-nwl.c | 2 +-
drivers/pci/controller/pcie-xilinx.c | 2 +-
drivers/pci/of.c | 44 ++++++++++++++++++-
drivers/pci/pci.h | 8 +++-
include/linux/pci.h | 2 +
19 files changed, 72 insertions(+), 18 deletions(-)
diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index f93252d0da5b..0743ae64bb0f 100644
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -342,7 +342,8 @@ int dw_pcie_host_init(struct pcie_port *pp)
return -ENOMEM;
ret = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff,
- &bridge->windows, &pp->io_base);
+ &bridge->windows, &bridge->dma_ranges,
+ &pp->io_base);
if (ret)
return ret;
diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index ff3af3d34028..c00b391529f3 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -940,7 +940,7 @@ static int advk_pcie_probe(struct platform_device *pdev)
}
ret = pci_parse_request_of_pci_ranges(dev, &pcie->resources,
- &bus);
+ &bridge->dma_ranges, &bus);
if (ret) {
dev_err(dev, "Failed to parse resources\n");
return ret;
diff --git a/drivers/pci/controller/pci-ftpci100.c b/drivers/pci/controller/pci-ftpci100.c
index bf5ece5d9291..3e07a8203736 100644
--- a/drivers/pci/controller/pci-ftpci100.c
+++ b/drivers/pci/controller/pci-ftpci100.c
@@ -481,7 +481,8 @@ static int faraday_pci_probe(struct platform_device *pdev)
return PTR_ERR(p->base);
ret = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff,
- &res, &io_base);
+ &res, &host->dma_ranges,
+ &io_base);
if (ret)
return ret;
diff --git a/drivers/pci/controller/pci-host-common.c b/drivers/pci/controller/pci-host-common.c
index c742881b5061..183381c19ee8 100644
--- a/drivers/pci/controller/pci-host-common.c
+++ b/drivers/pci/controller/pci-host-common.c
@@ -27,7 +27,7 @@ static struct pci_config_window *gen_pci_init(struct device *dev,
struct pci_config_window *cfg;
/* Parse our PCI ranges and request their resources */
- err = pci_parse_request_of_pci_ranges(dev, resources, &bus_range);
+ err = pci_parse_request_of_pci_ranges(dev, resources, NULL, &bus_range);
if (err)
return ERR_PTR(err);
diff --git a/drivers/pci/controller/pci-v3-semi.c b/drivers/pci/controller/pci-v3-semi.c
index d219404bad92..090df766faf9 100644
--- a/drivers/pci/controller/pci-v3-semi.c
+++ b/drivers/pci/controller/pci-v3-semi.c
@@ -794,7 +794,7 @@ static int v3_pci_probe(struct platform_device *pdev)
return PTR_ERR(v3->config_base);
ret = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff, &res,
- &io_base);
+ &host->dma_ranges, &io_base);
if (ret)
return ret;
diff --git a/drivers/pci/controller/pci-versatile.c b/drivers/pci/controller/pci-versatile.c
index 237b1abb26f2..211159f54b4a 100644
--- a/drivers/pci/controller/pci-versatile.c
+++ b/drivers/pci/controller/pci-versatile.c
@@ -93,7 +93,7 @@ static int versatile_pci_probe(struct platform_device *pdev)
if (IS_ERR(versatile_cfg_base[1]))
return PTR_ERR(versatile_cfg_base[1]);
- ret = pci_parse_request_of_pci_ranges(dev, &pci_res, NULL);
+ ret = pci_parse_request_of_pci_ranges(dev, &pci_res, NULL, NULL);
if (ret)
return ret;
diff --git a/drivers/pci/controller/pci-xgene.c b/drivers/pci/controller/pci-xgene.c
index ffda3e8b4742..11f27c42c06a 100644
--- a/drivers/pci/controller/pci-xgene.c
+++ b/drivers/pci/controller/pci-xgene.c
@@ -635,6 +635,7 @@ static int xgene_pcie_probe(struct platform_device *pdev)
return ret;
ret = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff, &res,
+ &bridge->dma_ranges,
&iobase);
if (ret)
return ret;
diff --git a/drivers/pci/controller/pcie-altera.c b/drivers/pci/controller/pcie-altera.c
index 2ed00babff5a..fde6a3b16fb9 100644
--- a/drivers/pci/controller/pcie-altera.c
+++ b/drivers/pci/controller/pcie-altera.c
@@ -801,7 +801,7 @@ static int altera_pcie_probe(struct platform_device *pdev)
}
ret = pci_parse_request_of_pci_ranges(dev, &pcie->resources,
- NULL);
+ &bridge->dma_ranges, NULL);
if (ret) {
dev_err(dev, "Failed add resources\n");
return ret;
diff --git a/drivers/pci/controller/pcie-cadence-host.c b/drivers/pci/controller/pcie-cadence-host.c
index 97e251090b4f..a8f7a6284c3e 100644
--- a/drivers/pci/controller/pcie-cadence-host.c
+++ b/drivers/pci/controller/pcie-cadence-host.c
@@ -211,7 +211,7 @@ static int cdns_pcie_host_init(struct device *dev,
int err;
/* Parse our PCI ranges and request their resources */
- err = pci_parse_request_of_pci_ranges(dev, resources, &bus_range);
+ err = pci_parse_request_of_pci_ranges(dev, resources, NULL, &bus_range);
if (err)
return err;
diff --git a/drivers/pci/controller/pcie-iproc-platform.c b/drivers/pci/controller/pcie-iproc-platform.c
index 5a3550b6bb29..62eee2d17f43 100644
--- a/drivers/pci/controller/pcie-iproc-platform.c
+++ b/drivers/pci/controller/pcie-iproc-platform.c
@@ -101,6 +101,7 @@ static int iproc_pcie_pltfm_probe(struct platform_device *pdev)
}
ret = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff, &resources,
+ &bridge->dma_ranges,
&iobase);
if (ret) {
dev_err(dev, "unable to get PCI host bridge resources\n");
diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index cea4112b5309..f3996eed152d 100644
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -1032,7 +1032,7 @@ static int mtk_pcie_setup(struct mtk_pcie *pcie)
int err;
err = pci_parse_request_of_pci_ranges(dev, windows,
- &bus);
+ &host->dma_ranges, &bus);
if (err)
return err;
diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
index 672e633601c7..93064faaa656 100644
--- a/drivers/pci/controller/pcie-mobiveil.c
+++ b/drivers/pci/controller/pcie-mobiveil.c
@@ -875,7 +875,9 @@ static int mobiveil_pcie_probe(struct platform_device *pdev)
/* parse the host bridge base addresses from the device tree file */
ret = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff,
- &pcie->resources, &iobase);
+ &pcie->resources,
+ &bridge->dma_ranges,
+ &iobase);
if (ret) {
dev_err(dev, "Getting bridge resources failed\n");
return ret;
diff --git a/drivers/pci/controller/pcie-rcar.c b/drivers/pci/controller/pcie-rcar.c
index f6a669a9af41..b8d6e86a5539 100644
--- a/drivers/pci/controller/pcie-rcar.c
+++ b/drivers/pci/controller/pcie-rcar.c
@@ -1138,7 +1138,8 @@ static int rcar_pcie_probe(struct platform_device *pdev)
pcie->dev = dev;
platform_set_drvdata(pdev, pcie);
- err = pci_parse_request_of_pci_ranges(dev, &pcie->resources, NULL);
+ err = pci_parse_request_of_pci_ranges(dev, &pcie->resources,
+ &bridge->dma_ranges, NULL);
if (err)
goto err_free_bridge;
diff --git a/drivers/pci/controller/pcie-rockchip-host.c b/drivers/pci/controller/pcie-rockchip-host.c
index 8d20f1793a61..093b816b9dc9 100644
--- a/drivers/pci/controller/pcie-rockchip-host.c
+++ b/drivers/pci/controller/pcie-rockchip-host.c
@@ -996,7 +996,8 @@ static int rockchip_pcie_probe(struct platform_device *pdev)
goto err_deinit_port;
err = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff,
- &res, &io_base);
+ &res, &bridge->dma_ranges,
+ &io_base);
if (err)
goto err_remove_irq_domain;
diff --git a/drivers/pci/controller/pcie-xilinx-nwl.c b/drivers/pci/controller/pcie-xilinx-nwl.c
index 45c0f344ccd1..5c9132a02d15 100644
--- a/drivers/pci/controller/pcie-xilinx-nwl.c
+++ b/drivers/pci/controller/pcie-xilinx-nwl.c
@@ -846,7 +846,7 @@ static int nwl_pcie_probe(struct platform_device *pdev)
}
err = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff, &res,
- &iobase);
+ &bridge->dma_ranges, &iobase);
if (err) {
dev_err(dev, "Getting bridge resources failed\n");
return err;
diff --git a/drivers/pci/controller/pcie-xilinx.c b/drivers/pci/controller/pcie-xilinx.c
index 5bf3af3b28e6..a95faca30291 100644
--- a/drivers/pci/controller/pcie-xilinx.c
+++ b/drivers/pci/controller/pcie-xilinx.c
@@ -648,7 +648,7 @@ static int xilinx_pcie_probe(struct platform_device *pdev)
}
err = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff, &res,
- &iobase);
+ &bridge->dma_ranges, &iobase);
if (err) {
dev_err(dev, "Getting bridge resources failed\n");
return err;
diff --git a/drivers/pci/of.c b/drivers/pci/of.c
index bc7b27a28795..8d31e078461f 100644
--- a/drivers/pci/of.c
+++ b/drivers/pci/of.c
@@ -257,7 +257,9 @@ EXPORT_SYMBOL_GPL(of_pci_check_probe_only);
*/
int devm_of_pci_get_host_bridge_resources(struct device *dev,
unsigned char busno, unsigned char bus_max,
- struct list_head *resources, resource_size_t *io_base)
+ struct list_head *resources,
+ struct list_head *ib_resources,
+ resource_size_t *io_base)
{
struct device_node *dev_node = dev->of_node;
struct resource *res, tmp_res;
@@ -340,6 +342,42 @@ int devm_of_pci_get_host_bridge_resources(struct device *dev,
pci_add_resource_offset(resources, res, res->start - range.pci_addr);
}
+ /* Check for dma-ranges property */
+ if (!ib_resources)
+ return 0;
+ err = of_pci_dma_range_parser_init(&parser, dev_node);
+ if (err)
+ return 0;
+
+ dev_dbg(dev, "Parsing dma-ranges property...\n");
+ for_each_of_pci_range(&parser, &range) {
+ /*
+ * If we failed translation or got a zero-sized region
+ * then skip this range
+ */
+ if (((range.flags & IORESOURCE_TYPE_BITS) != IORESOURCE_MEM) ||
+ range.cpu_addr == OF_BAD_ADDR || range.size == 0)
+ continue;
+
+ dev_info(dev, "IB MEM %#010llx..%#010llx -> %#010llx\n",
+ range.cpu_addr,
+ range.cpu_addr + range.size - 1, range.pci_addr);
+
+
+ err = of_pci_range_to_resource(&range, dev_node, &tmp_res);
+ if (err)
+ continue;
+
+ res = devm_kmemdup(dev, &tmp_res, sizeof(tmp_res), GFP_KERNEL);
+ if (!res) {
+ err = -ENOMEM;
+ goto failed;
+ }
+
+ pci_add_resource_offset(ib_resources, res,
+ res->start - range.pci_addr);
+ }
+
return 0;
failed:
@@ -482,6 +520,7 @@ EXPORT_SYMBOL_GPL(of_irq_parse_and_map_pci);
int pci_parse_request_of_pci_ranges(struct device *dev,
struct list_head *resources,
+ struct list_head *ib_resources,
struct resource **bus_range)
{
int err, res_valid = 0;
@@ -489,8 +528,9 @@ int pci_parse_request_of_pci_ranges(struct device *dev,
struct resource_entry *win, *tmp;
INIT_LIST_HEAD(resources);
+ INIT_LIST_HEAD(ib_resources);
err = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff, resources,
- &iobase);
+ ib_resources, &iobase);
if (err)
return err;
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index d22d1b807701..790458953c54 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -582,11 +582,15 @@ of_pci_get_max_link_speed(struct device_node *node)
#if defined(CONFIG_OF_ADDRESS)
int devm_of_pci_get_host_bridge_resources(struct device *dev,
unsigned char busno, unsigned char bus_max,
- struct list_head *resources, resource_size_t *io_base);
+ struct list_head *resources,
+ struct list_head *ib_resources,
+ resource_size_t *io_base);
#else
static inline int devm_of_pci_get_host_bridge_resources(struct device *dev,
unsigned char busno, unsigned char bus_max,
- struct list_head *resources, resource_size_t *io_base)
+ struct list_head *resources,
+ struct list_head *ib_resources,
+ resource_size_t *io_base);
{
return -EINVAL;
}
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 82e4cd1b7ac3..d57389b86f92 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -2312,6 +2312,7 @@ void pci_release_bus_of_node(struct pci_bus *bus);
struct irq_domain *pci_host_bridge_of_msi_domain(struct pci_bus *bus);
int pci_parse_request_of_pci_ranges(struct device *dev,
struct list_head *resources,
+ struct list_head *ib_resources,
struct resource **bus_range);
/* Arch may override this (weak) */
@@ -2326,6 +2327,7 @@ static inline struct irq_domain *
pci_host_bridge_of_msi_domain(struct pci_bus *bus) { return NULL; }
static inline int pci_parse_request_of_pci_ranges(struct device *dev,
struct list_head *resources,
+ struct list_head *ib_resources,
struct resource **bus_range)
{
return -EINVAL;
--
2.20.1
