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* [PATCH 00/11] PCI dma-ranges parsing consolidation
@ 2019-09-24 21:46 Rob Herring
  2019-09-24 21:46 ` [PATCH 03/11] PCI: mediatek: Use pci_parse_request_of_pci_ranges() Rob Herring
                   ` (2 more replies)
  0 siblings, 3 replies; 11+ messages in thread
From: Rob Herring @ 2019-09-24 21:46 UTC (permalink / raw)
  To: linux-pci, Bjorn Helgaas, Lorenzo Pieralisi
  Cc: Heiko Stuebner, Karthikeyan Mitran, Shawn Lin, Thomas Petazzoni,
	Toan Le, Will Deacon, Ryder Lee, Michal Simek, linux-rockchip,
	bcm-kernel-feedback-list, Linus Walleij, Ray Jui, Hou Zhiqiang,
	Simon Horman, linux-mediatek, Matthias Brugger, linux-arm-kernel,
	Scott Branden, Gustavo Pimentel, rfi, linux-renesas-soc,
	Tom Joseph, Jingoo Han, Ley

This series moves the DT 'dma-ranges' parsing into common helpers
utilizing a resource list. In the process of doing this, I noticed
several cases where pci_parse_request_of_pci_ranges() could be used so
I converted those drivers first. The last 5 patches make the actual
change to use the common 'dma_ranges' resource list. There's no
(intended) functional change in this series though I'm also working on
a separate series to improve the handling of 'dma-ranges' and dma
masks.

pci-rcar-gen2 is the only remaining driver doing its own dma-ranges
handling as it is still using the old ARM PCI functions. Looks like it
is the last one (in drivers/pci/).

Compile tested only.

Rob

Rob Herring (11):
  PCI: aardvark: Use pci_parse_request_of_pci_ranges()
  PCI: altera: Use pci_parse_request_of_pci_ranges()
  PCI: mediatek: Use pci_parse_request_of_pci_ranges()
  PCI: versatile: Enable COMPILE_TEST
  PCI: versatile: Use pci_parse_request_of_pci_ranges()
  PCI: of: Add inbound resource parsing to helpers
  PCI: ftpci100: Use inbound resources for setup
  PCI: v3-semi: Use inbound resources for setup
  PCI: xgene: Use inbound resources for setup
  PCI: iproc: Use inbound resources for setup
  PCI: rcar: Use inbound resources for setup

 drivers/pci/controller/Kconfig                |  2 +-
 .../pci/controller/dwc/pcie-designware-host.c |  3 +-
 drivers/pci/controller/pci-aardvark.c         | 58 ++---------------
 drivers/pci/controller/pci-ftpci100.c         | 29 ++++-----
 drivers/pci/controller/pci-host-common.c      |  2 +-
 drivers/pci/controller/pci-v3-semi.c          | 40 +++++-------
 drivers/pci/controller/pci-versatile.c        | 62 ++++--------------
 drivers/pci/controller/pci-xgene.c            | 33 ++++------
 drivers/pci/controller/pcie-altera.c          | 38 +----------
 drivers/pci/controller/pcie-cadence-host.c    |  2 +-
 drivers/pci/controller/pcie-iproc-platform.c  |  1 +
 drivers/pci/controller/pcie-iproc.c           | 63 +++----------------
 drivers/pci/controller/pcie-mediatek.c        | 47 +++++---------
 drivers/pci/controller/pcie-mobiveil.c        |  4 +-
 drivers/pci/controller/pcie-rcar.c            | 48 ++++++--------
 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 +
 21 files changed, 162 insertions(+), 331 deletions(-)

--
2.20.1

^ permalink raw reply	[flat|nested] 11+ messages in thread
* [PATCH 03/11] PCI: mediatek: Use pci_parse_request_of_pci_ranges()
  2019-09-24 21:46 [PATCH 00/11] PCI dma-ranges parsing consolidation Rob Herring
@ 2019-09-24 21:46 ` Rob Herring
  2019-09-25 11:34   ` Andrew Murray
  2019-09-24 21:46 ` [PATCH 06/11] PCI: of: Add inbound resource parsing to helpers Rob Herring
  2019-09-26  8:49 ` [PATCH 00/11] PCI dma-ranges parsing consolidation Andrew Murray
  2 siblings, 1 reply; 11+ messages in thread
From: Rob Herring @ 2019-09-24 21:46 UTC (permalink / raw)
  To: linux-pci, Bjorn Helgaas, Lorenzo Pieralisi
  Cc: Matthias Brugger, Ryder Lee, linux-mediatek, linux-arm-kernel

Convert Mediatek host bridge to use the common
pci_parse_request_of_pci_ranges().

Cc: Ryder Lee <ryder.lee@mediatek.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: linux-mediatek@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
---
 drivers/pci/controller/pcie-mediatek.c | 47 ++++++++++----------------
 1 file changed, 17 insertions(+), 30 deletions(-)

diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index 80601e1b939e..cea4112b5309 100644
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -211,7 +211,6 @@ struct mtk_pcie {
 	void __iomem *base;
 	struct clk *free_ck;
 
-	struct resource mem;
 	struct list_head ports;
 	const struct mtk_pcie_soc *soc;
 	unsigned int busnr;
@@ -658,11 +657,23 @@ static int mtk_pcie_setup_irq(struct mtk_pcie_port *port,
 static int mtk_pcie_startup_port_v2(struct mtk_pcie_port *port)
 {
 	struct mtk_pcie *pcie = port->pcie;
-	struct resource *mem = &pcie->mem;
+	struct pci_host_bridge *host = pci_host_bridge_from_priv(pcie);
+	struct resource *mem = NULL;
+	struct resource_entry *entry;
 	const struct mtk_pcie_soc *soc = port->pcie->soc;
 	u32 val;
 	int err;
 
+	resource_list_for_each_entry(entry, &host->windows) {
+		if (resource_type(entry->res) != IORESOURCE_MEM)
+			continue;
+
+		mem = entry->res;
+		break;
+	}
+	if (!mem)
+		return -EINVAL;
+
 	/* MT7622 platforms need to enable LTSSM and ASPM from PCIe subsys */
 	if (pcie->base) {
 		val = readl(pcie->base + PCIE_SYS_CFG_V2);
@@ -1017,39 +1028,15 @@ static int mtk_pcie_setup(struct mtk_pcie *pcie)
 	struct mtk_pcie_port *port, *tmp;
 	struct pci_host_bridge *host = pci_host_bridge_from_priv(pcie);
 	struct list_head *windows = &host->windows;
-	struct resource_entry *win, *tmp_win;
-	resource_size_t io_base;
+	struct resource *bus;
 	int err;
 
-	err = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff,
-						    windows, &io_base);
+	err = pci_parse_request_of_pci_ranges(dev, windows,
+					      &bus);
 	if (err)
 		return err;
 
-	err = devm_request_pci_bus_resources(dev, windows);
-	if (err < 0)
-		return err;
-
-	/* Get the I/O and memory ranges from DT */
-	resource_list_for_each_entry_safe(win, tmp_win, windows) {
-		switch (resource_type(win->res)) {
-		case IORESOURCE_IO:
-			err = devm_pci_remap_iospace(dev, win->res, io_base);
-			if (err) {
-				dev_warn(dev, "error %d: failed to map resource %pR\n",
-					 err, win->res);
-				resource_list_destroy_entry(win);
-			}
-			break;
-		case IORESOURCE_MEM:
-			memcpy(&pcie->mem, win->res, sizeof(*win->res));
-			pcie->mem.name = "non-prefetchable";
-			break;
-		case IORESOURCE_BUS:
-			pcie->busnr = win->res->start;
-			break;
-		}
-	}
+	pcie->busnr = bus->start;
 
 	for_each_available_child_of_node(node, child) {
 		int slot;
-- 
2.20.1

^ permalink raw reply related	[flat|nested] 11+ messages in thread
* [PATCH 06/11] PCI: of: Add inbound resource parsing to helpers
  2019-09-24 21:46 [PATCH 00/11] PCI dma-ranges parsing consolidation Rob Herring
  2019-09-24 21:46 ` [PATCH 03/11] PCI: mediatek: Use pci_parse_request_of_pci_ranges() Rob Herring
@ 2019-09-24 21:46 ` Rob Herring
  2019-09-25  9:00   ` Thomas Petazzoni
                     ` (5 more replies)
  2019-09-26  8:49 ` [PATCH 00/11] PCI dma-ranges parsing consolidation Andrew Murray
  2 siblings, 6 replies; 11+ messages in thread
From: Rob Herring @ 2019-09-24 21:46 UTC (permalink / raw)
  To: linux-pci, Bjorn Helgaas, Lorenzo Pieralisi
  Cc: Heiko Stuebner, Karthikeyan Mitran, Linus Walleij,
	Thomas Petazzoni, Toan Le, Will Deacon, Ryder Lee, Michal Simek,
	linux-rockchip, bcm-kernel-feedback-list, Shawn Lin, Ray Jui,
	Hou Zhiqiang, Simon Horman, linux-mediatek, linux-arm-kernel,
	Scott Branden, Jingoo Han, rfi, linux-renesas-soc, Tom Joseph,
	Gustavo Pimentel, Ley Foon Tan

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@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Will Deacon <will@kernel.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Toan Le <toan@os.amperecomputing.com>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Tom Joseph <tjoseph@cadence.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: Ryder Lee <ryder.lee@mediatek.com>
Cc: Karthikeyan Mitran <m.karthikeyan@mobiveil.co.in>
Cc: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: Shawn Lin <shawn.lin@rock-chips.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: rfi@lists.rocketboards.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-rockchip@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
---
 .../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

^ permalink raw reply related	[flat|nested] 11+ messages in thread
* Re: [PATCH 06/11] PCI: of: Add inbound resource parsing to helpers
  2019-09-24 21:46 ` [PATCH 06/11] PCI: of: Add inbound resource parsing to helpers Rob Herring
@ 2019-09-25  9:00   ` Thomas Petazzoni
  2019-09-26  8:29   ` Andrew Murray
                     ` (4 subsequent siblings)
  5 siblings, 0 replies; 11+ messages in thread
From: Thomas Petazzoni @ 2019-09-25  9:00 UTC (permalink / raw)
  To: Rob Herring
  Cc: Heiko Stuebner, Karthikeyan Mitran, linux-pci, Linus Walleij,
	Ryder Lee, Nadav Haklai, Toan Le, Will Deacon, Lorenzo Pieralisi,
	Michal Simek, linux-rockchip, bcm-kernel-feedback-list, Shawn Lin,
	Ray Jui, Hou Zhiqiang, Simon Horman, linux-mediatek,
	Bjorn Helgaas, linux-arm-kernel, Scott Branden, Jingoo Han, rfi,
	linux-renesas-soc, Tom Joseph, Gusta

On Tue, 24 Sep 2019 16:46:25 -0500
Rob Herring <robh@kernel.org> wrote:

> 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@gmail.com>
> Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: Bjorn Helgaas <bhelgaas@google.com>
> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
> Cc: Will Deacon <will@kernel.org>
> Cc: Linus Walleij <linus.walleij@linaro.org>
> Cc: Toan Le <toan@os.amperecomputing.com>
> Cc: Ley Foon Tan <lftan@altera.com>
> Cc: Tom Joseph <tjoseph@cadence.com>
> Cc: Ray Jui <rjui@broadcom.com>
> Cc: Scott Branden <sbranden@broadcom.com>
> Cc: bcm-kernel-feedback-list@broadcom.com
> Cc: Ryder Lee <ryder.lee@mediatek.com>
> Cc: Karthikeyan Mitran <m.karthikeyan@mobiveil.co.in>
> Cc: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
> Cc: Simon Horman <horms@verge.net.au>
> Cc: Shawn Lin <shawn.lin@rock-chips.com>
> Cc: Heiko Stuebner <heiko@sntech.de>
> Cc: Michal Simek <michal.simek@xilinx.com>
> Cc: rfi@lists.rocketboards.org
> Cc: linux-mediatek@lists.infradead.org
> Cc: linux-renesas-soc@vger.kernel.org
> Cc: linux-rockchip@lists.infradead.org
> Signed-off-by: Rob Herring <robh@kernel.org>
> ---
>  .../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(-)

for the AArdvark bits:

Tested-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(on Armada 3720-DB, with a E1000E NIC)

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

^ permalink raw reply	[flat|nested] 11+ messages in thread
* Re: [PATCH 03/11] PCI: mediatek: Use pci_parse_request_of_pci_ranges()
  2019-09-24 21:46 ` [PATCH 03/11] PCI: mediatek: Use pci_parse_request_of_pci_ranges() Rob Herring
@ 2019-09-25 11:34   ` Andrew Murray
  0 siblings, 0 replies; 11+ messages in thread
From: Andrew Murray @ 2019-09-25 11:34 UTC (permalink / raw)
  To: Rob Herring
  Cc: Lorenzo Pieralisi, linux-pci, Matthias Brugger, Ryder Lee,
	linux-mediatek, Bjorn Helgaas, linux-arm-kernel

On Tue, Sep 24, 2019 at 04:46:22PM -0500, Rob Herring wrote:
> Convert Mediatek host bridge to use the common
> pci_parse_request_of_pci_ranges().
> 
> Cc: Ryder Lee <ryder.lee@mediatek.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: Bjorn Helgaas <bhelgaas@google.com>
> Cc: Matthias Brugger <matthias.bgg@gmail.com>
> Cc: linux-mediatek@lists.infradead.org
> Signed-off-by: Rob Herring <robh@kernel.org>
> ---
>  drivers/pci/controller/pcie-mediatek.c | 47 ++++++++++----------------
>  1 file changed, 17 insertions(+), 30 deletions(-)
> 
> diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
> index 80601e1b939e..cea4112b5309 100644
> --- a/drivers/pci/controller/pcie-mediatek.c
> +++ b/drivers/pci/controller/pcie-mediatek.c
> @@ -211,7 +211,6 @@ struct mtk_pcie {
>  	void __iomem *base;
>  	struct clk *free_ck;
>  
> -	struct resource mem;
>  	struct list_head ports;
>  	const struct mtk_pcie_soc *soc;
>  	unsigned int busnr;
> @@ -658,11 +657,23 @@ static int mtk_pcie_setup_irq(struct mtk_pcie_port *port,
>  static int mtk_pcie_startup_port_v2(struct mtk_pcie_port *port)
>  {
>  	struct mtk_pcie *pcie = port->pcie;
> -	struct resource *mem = &pcie->mem;
> +	struct pci_host_bridge *host = pci_host_bridge_from_priv(pcie);
> +	struct resource *mem = NULL;
> +	struct resource_entry *entry;
>  	const struct mtk_pcie_soc *soc = port->pcie->soc;
>  	u32 val;
>  	int err;
>  
> +	resource_list_for_each_entry(entry, &host->windows) {
> +		if (resource_type(entry->res) != IORESOURCE_MEM)
> +			continue;
> +
> +		mem = entry->res;
> +		break;
> +	}
> +	if (!mem)
> +		return -EINVAL;
> +
>  	/* MT7622 platforms need to enable LTSSM and ASPM from PCIe subsys */
>  	if (pcie->base) {
>  		val = readl(pcie->base + PCIE_SYS_CFG_V2);
> @@ -1017,39 +1028,15 @@ static int mtk_pcie_setup(struct mtk_pcie *pcie)
>  	struct mtk_pcie_port *port, *tmp;
>  	struct pci_host_bridge *host = pci_host_bridge_from_priv(pcie);
>  	struct list_head *windows = &host->windows;
> -	struct resource_entry *win, *tmp_win;
> -	resource_size_t io_base;
> +	struct resource *bus;
>  	int err;
>  
> -	err = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff,
> -						    windows, &io_base);
> +	err = pci_parse_request_of_pci_ranges(dev, windows,
> +					      &bus);
>  	if (err)
>  		return err;
>  
> -	err = devm_request_pci_bus_resources(dev, windows);
> -	if (err < 0)
> -		return err;
> -
> -	/* Get the I/O and memory ranges from DT */
> -	resource_list_for_each_entry_safe(win, tmp_win, windows) {
> -		switch (resource_type(win->res)) {
> -		case IORESOURCE_IO:
> -			err = devm_pci_remap_iospace(dev, win->res, io_base);
> -			if (err) {
> -				dev_warn(dev, "error %d: failed to map resource %pR\n",
> -					 err, win->res);
> -				resource_list_destroy_entry(win);
> -			}
> -			break;
> -		case IORESOURCE_MEM:
> -			memcpy(&pcie->mem, win->res, sizeof(*win->res));
> -			pcie->mem.name = "non-prefetchable";

Using pci_parse_request_of_pci_ranges will now guard against using only
prefetchable memory ranges, whereas the existing code didn't do that. Given
that the current DT users all provide a non-prefetchable range I think this is
OK.

Reviewed-by: Andrew murray <andrew.murray@arm.com>

> -			break;
> -		case IORESOURCE_BUS:
> -			pcie->busnr = win->res->start;
> -			break;
> -		}
> -	}
> +	pcie->busnr = bus->start;
>  
>  	for_each_available_child_of_node(node, child) {
>  		int slot;
> -- 
> 2.20.1
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 11+ messages in thread
* Re: [PATCH 06/11] PCI: of: Add inbound resource parsing to helpers
  2019-09-24 21:46 ` [PATCH 06/11] PCI: of: Add inbound resource parsing to helpers Rob Herring
  2019-09-25  9:00   ` Thomas Petazzoni
@ 2019-09-26  8:29   ` Andrew Murray
  2019-09-26 10:43   ` Gustavo Pimentel
                     ` (3 subsequent siblings)
  5 siblings, 0 replies; 11+ messages in thread
From: Andrew Murray @ 2019-09-26  8:29 UTC (permalink / raw)
  To: Rob Herring
  Cc: Heiko Stuebner, Karthikeyan Mitran, linux-pci, Linus Walleij,
	Ryder Lee, Thomas Petazzoni, Toan Le, Will Deacon,
	Lorenzo Pieralisi, Michal Simek, linux-rockchip,
	bcm-kernel-feedback-list, Shawn Lin, Ray Jui, Hou Zhiqiang,
	Simon Horman, linux-mediatek, Bjorn Helgaas, linux-arm-kernel,
	Scott Branden, Jingoo Han, rfi, linux-renesas-soc, Tom Joseph

On Tue, Sep 24, 2019 at 04:46:25PM -0500, Rob Herring wrote:
> 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@gmail.com>
> Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: Bjorn Helgaas <bhelgaas@google.com>
> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
> Cc: Will Deacon <will@kernel.org>
> Cc: Linus Walleij <linus.walleij@linaro.org>
> Cc: Toan Le <toan@os.amperecomputing.com>
> Cc: Ley Foon Tan <lftan@altera.com>
> Cc: Tom Joseph <tjoseph@cadence.com>
> Cc: Ray Jui <rjui@broadcom.com>
> Cc: Scott Branden <sbranden@broadcom.com>
> Cc: bcm-kernel-feedback-list@broadcom.com
> Cc: Ryder Lee <ryder.lee@mediatek.com>
> Cc: Karthikeyan Mitran <m.karthikeyan@mobiveil.co.in>
> Cc: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
> Cc: Simon Horman <horms@verge.net.au>
> Cc: Shawn Lin <shawn.lin@rock-chips.com>
> Cc: Heiko Stuebner <heiko@sntech.de>
> Cc: Michal Simek <michal.simek@xilinx.com>
> Cc: rfi@lists.rocketboards.org
> Cc: linux-mediatek@lists.infradead.org
> Cc: linux-renesas-soc@vger.kernel.org
> Cc: linux-rockchip@lists.infradead.org
> Signed-off-by: Rob Herring <robh@kernel.org>
> ---

Reviewed-by: Andrew Murray <andrew.murray@arm.com>

>  .../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
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 11+ messages in thread
* Re: [PATCH 00/11] PCI dma-ranges parsing consolidation
  2019-09-24 21:46 [PATCH 00/11] PCI dma-ranges parsing consolidation Rob Herring
  2019-09-24 21:46 ` [PATCH 03/11] PCI: mediatek: Use pci_parse_request_of_pci_ranges() Rob Herring
  2019-09-24 21:46 ` [PATCH 06/11] PCI: of: Add inbound resource parsing to helpers Rob Herring
@ 2019-09-26  8:49 ` Andrew Murray
  2 siblings, 0 replies; 11+ messages in thread
From: Andrew Murray @ 2019-09-26  8:49 UTC (permalink / raw)
  To: Rob Herring
  Cc: Heiko Stuebner, Karthikeyan Mitran, linux-pci, Shawn Lin,
	Ryder Lee, Matthias Brugger, Thomas Petazzoni, Toan Le,
	Will Deacon, Lorenzo Pieralisi, Michal Simek, linux-rockchip,
	bcm-kernel-feedback-list, Linus Walleij, Ray Jui, Hou Zhiqiang,
	Simon Horman, linux-mediatek, Bjorn Helgaas, linux-arm-kernel,
	Scott Branden, Gustavo Pimentel, rfi

On Tue, Sep 24, 2019 at 04:46:19PM -0500, Rob Herring wrote:
> This series moves the DT 'dma-ranges' parsing into common helpers
> utilizing a resource list. In the process of doing this, I noticed
> several cases where pci_parse_request_of_pci_ranges() could be used so
> I converted those drivers first. The last 5 patches make the actual
> change to use the common 'dma_ranges' resource list. There's no
> (intended) functional change in this series though I'm also working on
> a separate series to improve the handling of 'dma-ranges' and dma
> masks.
> 
> pci-rcar-gen2 is the only remaining driver doing its own dma-ranges
> handling as it is still using the old ARM PCI functions. Looks like it
> is the last one (in drivers/pci/).

It also seems that pcie-tango is using of_pci_dma_range_parser_init
and so parsing dma-ranges. Though it's using the dma_ranges for a
slightly different purpose.

Thanks,

Andrew Murray

> 
> Compile tested only.
> 
> Rob
> 
> Rob Herring (11):
>   PCI: aardvark: Use pci_parse_request_of_pci_ranges()
>   PCI: altera: Use pci_parse_request_of_pci_ranges()
>   PCI: mediatek: Use pci_parse_request_of_pci_ranges()
>   PCI: versatile: Enable COMPILE_TEST
>   PCI: versatile: Use pci_parse_request_of_pci_ranges()
>   PCI: of: Add inbound resource parsing to helpers
>   PCI: ftpci100: Use inbound resources for setup
>   PCI: v3-semi: Use inbound resources for setup
>   PCI: xgene: Use inbound resources for setup
>   PCI: iproc: Use inbound resources for setup
>   PCI: rcar: Use inbound resources for setup
> 
>  drivers/pci/controller/Kconfig                |  2 +-
>  .../pci/controller/dwc/pcie-designware-host.c |  3 +-
>  drivers/pci/controller/pci-aardvark.c         | 58 ++---------------
>  drivers/pci/controller/pci-ftpci100.c         | 29 ++++-----
>  drivers/pci/controller/pci-host-common.c      |  2 +-
>  drivers/pci/controller/pci-v3-semi.c          | 40 +++++-------
>  drivers/pci/controller/pci-versatile.c        | 62 ++++--------------
>  drivers/pci/controller/pci-xgene.c            | 33 ++++------
>  drivers/pci/controller/pcie-altera.c          | 38 +----------
>  drivers/pci/controller/pcie-cadence-host.c    |  2 +-
>  drivers/pci/controller/pcie-iproc-platform.c  |  1 +
>  drivers/pci/controller/pcie-iproc.c           | 63 +++----------------
>  drivers/pci/controller/pcie-mediatek.c        | 47 +++++---------
>  drivers/pci/controller/pcie-mobiveil.c        |  4 +-
>  drivers/pci/controller/pcie-rcar.c            | 48 ++++++--------
>  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 +
>  21 files changed, 162 insertions(+), 331 deletions(-)
> 
> --
> 2.20.1
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 11+ messages in thread
* RE: [PATCH 06/11] PCI: of: Add inbound resource parsing to helpers
  2019-09-24 21:46 ` [PATCH 06/11] PCI: of: Add inbound resource parsing to helpers Rob Herring
  2019-09-25  9:00   ` Thomas Petazzoni
  2019-09-26  8:29   ` Andrew Murray
@ 2019-09-26 10:43   ` Gustavo Pimentel
  2019-09-27 16:12   ` Jingoo Han
                     ` (2 subsequent siblings)
  5 siblings, 0 replies; 11+ messages in thread
From: Gustavo Pimentel @ 2019-09-26 10:43 UTC (permalink / raw)
  To: Rob Herring, linux-pci@vger.kernel.org, Bjorn Helgaas,
	Lorenzo Pieralisi
  Cc: Heiko Stuebner, Karthikeyan Mitran, Linus Walleij,
	Thomas Petazzoni, Toan Le, Will Deacon, Ryder Lee, Michal Simek,
	linux-rockchip@lists.infradead.org,
	bcm-kernel-feedback-list@broadcom.com, Shawn Lin, Ray Jui,
	Hou Zhiqiang, Simon Horman, linux-mediatek@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org, Scott Branden, Jingoo Han,
	rfi@lists.rocketboards.org

On Tue, Sep 24, 2019 at 22:46:25, Rob Herring <robh@kernel.org> wrote:

> 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@gmail.com>
> Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: Bjorn Helgaas <bhelgaas@google.com>
> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
> Cc: Will Deacon <will@kernel.org>
> Cc: Linus Walleij <linus.walleij@linaro.org>
> Cc: Toan Le <toan@os.amperecomputing.com>
> Cc: Ley Foon Tan <lftan@altera.com>
> Cc: Tom Joseph <tjoseph@cadence.com>
> Cc: Ray Jui <rjui@broadcom.com>
> Cc: Scott Branden <sbranden@broadcom.com>
> Cc: bcm-kernel-feedback-list@broadcom.com
> Cc: Ryder Lee <ryder.lee@mediatek.com>
> Cc: Karthikeyan Mitran <m.karthikeyan@mobiveil.co.in>
> Cc: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
> Cc: Simon Horman <horms@verge.net.au>
> Cc: Shawn Lin <shawn.lin@rock-chips.com>
> Cc: Heiko Stuebner <heiko@sntech.de>
> Cc: Michal Simek <michal.simek@xilinx.com>
> Cc: rfi@lists.rocketboards.org
> Cc: linux-mediatek@lists.infradead.org
> Cc: linux-renesas-soc@vger.kernel.org
> Cc: linux-rockchip@lists.infradead.org
> Signed-off-by: Rob Herring <robh@kernel.org>
> ---
>  .../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

Seems ok to me.


Acked-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>

^ permalink raw reply	[flat|nested] 11+ messages in thread
* Re: [PATCH 06/11] PCI: of: Add inbound resource parsing to helpers
  2019-09-24 21:46 ` [PATCH 06/11] PCI: of: Add inbound resource parsing to helpers Rob Herring
                     ` (2 preceding siblings ...)
  2019-09-26 10:43   ` Gustavo Pimentel
@ 2019-09-27 16:12   ` Jingoo Han
  2019-09-27 16:12   ` Jingoo Han
  2020-01-13  9:56   ` Bharat Kumar Gogada
  5 siblings, 0 replies; 11+ messages in thread
From: Jingoo Han @ 2019-09-27 16:12 UTC (permalink / raw)
  To: Rob Herring, linux-pci@vger.kernel.org, Bjorn Helgaas,
	Lorenzo Pieralisi
  Cc: Heiko Stuebner, Karthikeyan Mitran, Linus Walleij,
	Thomas Petazzoni, Toan Le, Will Deacon, Ryder Lee, Michal Simek,
	linux-rockchip@lists.infradead.org,
	bcm-kernel-feedback-list@broadcom.com, Shawn Lin, Ray Jui,
	Hou Zhiqiang, Simon Horman, linux-mediatek@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org, Scott Branden,
	Gustavo Pimentel, rfi



> On 9/24/19, 5:46 PM, Rob Herring wrote:
>
> 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@gmail.com>

For /drivers/pci/controller/dwc/pcie-designware-host.c,

Acked-by: Jingoo Han <jingoohan1@gmail.com>

Best regards,
Jingoo Han

> Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: Bjorn Helgaas <bhelgaas@google.com>
> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
> Cc: Will Deacon <will@kernel.org>
> Cc: Linus Walleij <linus.walleij@linaro.org>
> Cc: Toan Le <toan@os.amperecomputing.com>
> Cc: Ley Foon Tan <lftan@altera.com>
> Cc: Tom Joseph <tjoseph@cadence.com>
> Cc: Ray Jui <rjui@broadcom.com>
> Cc: Scott Branden <sbranden@broadcom.com>
> Cc: bcm-kernel-feedback-list@broadcom.com
> Cc: Ryder Lee <ryder.lee@mediatek.com>
> Cc: Karthikeyan Mitran <m.karthikeyan@mobiveil.co.in>
> Cc: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
> Cc: Simon Horman <horms@verge.net.au>
> Cc: Shawn Lin <shawn.lin@rock-chips.com>
> Cc: Heiko Stuebner <heiko@sntech.de>
> Cc: Michal Simek <michal.simek@xilinx.com>
> Cc: rfi@lists.rocketboards.org
> Cc: linux-mediatek@lists.infradead.org
> Cc: linux-renesas-soc@vger.kernel.org
> Cc: linux-rockchip@lists.infradead.org
> Signed-off-by: Rob Herring <robh@kernel.org>
> ---
>  .../pci/controller/dwc/pcie-designware-host.c |  3 +-

....

> 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;
 
....
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 11+ messages in thread
* Re: [PATCH 06/11] PCI: of: Add inbound resource parsing to helpers
  2019-09-24 21:46 ` [PATCH 06/11] PCI: of: Add inbound resource parsing to helpers Rob Herring
                     ` (3 preceding siblings ...)
  2019-09-27 16:12   ` Jingoo Han
@ 2019-09-27 16:12   ` Jingoo Han
  2020-01-13  9:56   ` Bharat Kumar Gogada
  5 siblings, 0 replies; 11+ messages in thread
From: Jingoo Han @ 2019-09-27 16:12 UTC (permalink / raw)
  To: Rob Herring, linux-pci@vger.kernel.org, Bjorn Helgaas,
	Lorenzo Pieralisi
  Cc: Heiko Stuebner, Karthikeyan Mitran, Linus Walleij,
	Thomas Petazzoni, Toan Le, Will Deacon, Ryder Lee, Michal Simek,
	linux-rockchip@lists.infradead.org,
	bcm-kernel-feedback-list@broadcom.com, Shawn Lin, Ray Jui,
	Hou Zhiqiang, Simon Horman, linux-mediatek@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org, Scott Branden,
	Gustavo Pimentel, rfi



> On 9/24/19, 5:46 PM, Rob Herring wrote:
>
> 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@gmail.com>

For /drivers/pci/controller/dwc/pcie-designware-host.c,

Acked-by: Jingoo Han <jingoohan1@gmail.com>

Best regards,
Jingoo Han

> Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: Bjorn Helgaas <bhelgaas@google.com>
> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
> Cc: Will Deacon <will@kernel.org>
> Cc: Linus Walleij <linus.walleij@linaro.org>
> Cc: Toan Le <toan@os.amperecomputing.com>
> Cc: Ley Foon Tan <lftan@altera.com>
> Cc: Tom Joseph <tjoseph@cadence.com>
> Cc: Ray Jui <rjui@broadcom.com>
> Cc: Scott Branden <sbranden@broadcom.com>
> Cc: bcm-kernel-feedback-list@broadcom.com
> Cc: Ryder Lee <ryder.lee@mediatek.com>
> Cc: Karthikeyan Mitran <m.karthikeyan@mobiveil.co.in>
> Cc: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
> Cc: Simon Horman <horms@verge.net.au>
> Cc: Shawn Lin <shawn.lin@rock-chips.com>
> Cc: Heiko Stuebner <heiko@sntech.de>
> Cc: Michal Simek <michal.simek@xilinx.com>
> Cc: rfi@lists.rocketboards.org
> Cc: linux-mediatek@lists.infradead.org
> Cc: linux-renesas-soc@vger.kernel.org
> Cc: linux-rockchip@lists.infradead.org
> Signed-off-by: Rob Herring <robh@kernel.org>
> ---
>  .../pci/controller/dwc/pcie-designware-host.c |  3 +-

....

> 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;
 
....
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 11+ messages in thread
* [PATCH 06/11] PCI: of: Add inbound resource parsing to helpers
  2019-09-24 21:46 ` [PATCH 06/11] PCI: of: Add inbound resource parsing to helpers Rob Herring
                     ` (4 preceding siblings ...)
  2019-09-27 16:12   ` Jingoo Han
@ 2020-01-13  9:56   ` Bharat Kumar Gogada
  5 siblings, 0 replies; 11+ messages in thread
From: Bharat Kumar Gogada @ 2020-01-13  9:56 UTC (permalink / raw)
  To: git-dev, linux-pci, Bjorn Helgaas, Lorenzo Pieralisi
  Cc: Heiko Stuebner, Karthikeyan Mitran, Linus Walleij,
	Thomas Petazzoni, Toan Le, Will Deacon, Rob Herring, Ryder Lee,
	linux-mediatek, Michal Simek, linux-rockchip,
	bcm-kernel-feedback-list, michals, Shawn Lin, Ray Jui,
	Hou Zhiqiang, Simon Horman, rgummal, linux-arm-kernel,
	Scott Branden, Jingoo Han, rfi, linux-renesas-soc, Tom Joseph,
	Gustavo Pimentel, Ley Foon Tan

From: Rob Herring <robh@kernel.org>

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@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Will Deacon <will@kernel.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Toan Le <toan@os.amperecomputing.com>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Tom Joseph <tjoseph@cadence.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: Ryder Lee <ryder.lee@mediatek.com>
Cc: Karthikeyan Mitran <m.karthikeyan@mobiveil.co.in>
Cc: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: Shawn Lin <shawn.lin@rock-chips.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: rfi@lists.rocketboards.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-rockchip@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
Tested-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Reviewed-by: Andrew Murray <andrew.murray@arm.com>
Acked-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Acked-by: Jingoo Han <jingoohan1@gmail.com>
Acked-by: Jingoo Han <jingoohan1@gmail.com>
---
 .../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;

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^ permalink raw reply related	[flat|nested] 11+ messages in thread
end of thread, other threads:[~2020-01-13  9:59 UTC | newest]

Thread overview: 11+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2019-09-24 21:46 [PATCH 00/11] PCI dma-ranges parsing consolidation Rob Herring
2019-09-24 21:46 ` [PATCH 03/11] PCI: mediatek: Use pci_parse_request_of_pci_ranges() Rob Herring
2019-09-25 11:34   ` Andrew Murray
2019-09-24 21:46 ` [PATCH 06/11] PCI: of: Add inbound resource parsing to helpers Rob Herring
2019-09-25  9:00   ` Thomas Petazzoni
2019-09-26  8:29   ` Andrew Murray
2019-09-26 10:43   ` Gustavo Pimentel
2019-09-27 16:12   ` Jingoo Han
2019-09-27 16:12   ` Jingoo Han
2020-01-13  9:56   ` Bharat Kumar Gogada
2019-09-26  8:49 ` [PATCH 00/11] PCI dma-ranges parsing consolidation Andrew Murray

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