Merge tag 'pci-v5.11-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "Enumeration:
   - Decode PCIe 64 GT/s link speed (Gustavo Pimentel)
   - Remove unused HAVE_PCI_SET_MWI (Heiner Kallweit)
   - Reduce pci_set_cacheline_size() message to debug level (Heiner
     Kallweit)
   - Fix pci_slot_release() NULL pointer dereference (Jubin Zhong)
   - Unify ECAM constants in native PCI Express drivers (Krzysztof
     Wilczyński)
   - Return u8 from pci_find_capability() and similar (Puranjay Mohan)
   - Return u16 from pci_find_ext_capability() and similar (Bjorn
     Helgaas)
   - Fix ACPI companion lookup for device 0 on the root bus (Rafael J.
     Wysocki)

  Resource management:
   - Keep both device and resource name for config space remaps
     (Alexander Lobakin)
   - Bounds-check command-line resource alignment requests (Bjorn
     Helgaas)
   - Fix overflow in command-line resource alignment requests (Colin Ian
     King)

  Driver binding:
   - Avoid duplicate IDs in driver dynamic IDs list (Zhenzhong Duan)

  Power management:
   - Save/restore Precision Time Measurement Capability for
     suspend/resume (David E. Box)
   - Disable PTM during suspend to save power (David E. Box)
   - Add sysfs attribute for device power state (Maximilian Luz)
   - Rename pci_wakeup_bus() to pci_resume_bus() (Mika Westerberg)
   - Do not generate wakeup event when runtime resuming device (Mika
     Westerberg)
   - Save/restore ASPM L1SS Capability for suspend/resume (Vidya Sagar)

  Virtualization:
   - Mark AMD Raven iGPU ATS as broken in some platforms (Alex Deucher)
   - Add function 1 DMA alias quirk for Marvell 9215 SATA controller
     (Bjorn Helgaas)

  MSI:
   - Disable MSI for Pericom PCIe-USB adapter (Andy Shevchenko)
   - Improve warnings for 32-bit-limited MSI support (Vidya Sagar)

  Error handling:
   - Cache RCEC EA Capability offset in pci_init_capabilities() (Sean V
     Kelley)
   - Rename reset_link() to reset_subordinates() (Sean V Kelley)
   - Write AER Capability only when we control it (Sean V Kelley)
   - Clear AER status only when we control AER (Sean V Kelley)
   - Bind RCEC devices to the Root Port driver (Qiuxu Zhuo)
   - Recover from RCiEP AER errors (Qiuxu Zhuo)
   - Recover from RCEC AER errors (Sean V Kelley)
   - Add pcie_link_rcec() to associate RCiEPs (Sean V Kelley)
   - Add pcie_walk_rcec() to RCEC AER handling (Sean V Kelley)
   - Add pcie_walk_rcec() to RCEC PME handling (Sean V Kelley)
   - Add RCEC AER error injection support (Qiuxu Zhuo)

  Broadcom iProc PCIe controller driver:
   - Fix out-of-bound array accesses (Bharat Gooty)
   - Invalidate correct PAXB inbound windows (Roman Bacik)
   - Enhance PCIe Link information display (Srinath Mannam)

  Cadence PCIe controller driver:
   - Make "cdns,max-outbound-regions" property optional (Kishon Vijay
     Abraham I)

  Intel VMD host bridge driver:
   - Offset client MSI-X vectors (Jon Derrick)
   - Update type of __iomem pointers (Krzysztof Wilczyński)

  NVIDIA Tegra PCIe controller driver:
   - Move "dbi" accesses to post common DWC initialization (Vidya Sagar)
   - Read "dbi" base address to program in application logic (Vidya
     Sagar)
   - Fix ASPM-L1SS advertisement disable code (Vidya Sagar)
   - Set DesignWare IP version (Vidya Sagar)
   - Continue unconfig sequence even if parts fail (Vidya Sagar)
   - Check return value of tegra_pcie_init_controller() (Vidya Sagar)
   - Disable LTSSM during L2 entry (Vidya Sagar)

  Qualcomm PCIe controller driver:
   - Document PCIe bindings for SM8250 SoC (Manivannan Sadhasivam)
   - Add SM8250 SoC support (Manivannan Sadhasivam)
   - Add support for configuring BDF to SID mapping for SM8250
     (Manivannan Sadhasivam)

  Renesas R-Car PCIe controller driver:
   - rcar: Drop unused members from struct rcar_pcie_host (Lad
     Prabhakar)
   - PCI: rcar-pci-host: Document r8a774e1 bindings (Lad Prabhakar)
   - PCI: rcar-pci-host: Convert bindings to json-schema (Yoshihiro
     Shimoda)
   - PCI: rcar-pci-host: Document r8a77965 bindings (Yoshihiro Shimoda)

  Samsung Exynos PCIe controller driver:
   - Rework driver to support Exynos5433 PCIe PHY (Jaehoon Chung)
   - Rework driver to support Exynos5433 variant (Jaehoon Chung)
   - Drop samsung,exynos5440-pcie binding (Marek Szyprowski)
   - Add the samsung,exynos-pcie binding (Marek Szyprowski)
   - Add the samsung,exynos-pcie-phy binding (Marek Szyprowski)

  Synopsys DesignWare PCIe controller driver:
   - Support multiple ATU memory regions (Rob Herring)
   - Move intel-gw ATU offset out of driver match data (Rob Herring)
   - Move "dbi", "dbi2", and "addr_space" resource setup into common
     code (Rob Herring)
   - Remove intel-gw unneeded function wrappers (Rob Herring)
   - Ensure all outbound ATU windows are reset (Rob Herring)
   - Use the common MSI irq_chip in dra7xx (Rob Herring)
   - Drop the .set_num_vectors() host op (Rob Herring)
   - Move MSI interrupt setup into DWC common code (Rob Herring)
   - Rework MSI initialization (Rob Herring)
   - Move link handling into common code (Rob Herring)
   - Move dw_pcie_msi_init() into core (Rob Herring)
   - Move dw_pcie_setup_rc() to DWC common code (Rob Herring)
   - Remove unnecessary wrappers around dw_pcie_host_init() (Rob
     Herring)
   - Drop keystone duplicated 'num-viewport'" (Rob Herring)
   - Move inbound and outbound windows to common struct (Rob Herring)
   - Detect number of iATU windows (Rob Herring)
   - Warn if non-prefetchable memory aperture size is > 32-bit (Vidya
     Sagar)
   - Add support to program ATU for >4GB memory (Vidya Sagar)
   - Set 32-bit DMA mask for MSI target address allocation (Vidya Sagar)

  TI J721E PCIe driver:
   - Fix "ti,syscon-pcie-ctrl" to take argument (Kishon Vijay Abraham I)
   - Add host mode dt-bindings for TI's J7200 SoC (Kishon Vijay Abraham
     I)
   - Add EP mode dt-bindings for TI's J7200 SoC (Kishon Vijay Abraham I)
   - Get offset within "syscon" from "ti,syscon-pcie-ctrl" phandle arg
     (Kishon Vijay Abraham I)

  TI Keystone PCIe controller driver:
   - Enable compile-testing on !ARM (Alex Dewar)"

* tag 'pci-v5.11-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (100 commits)
  PCI: Add function 1 DMA alias quirk for Marvell 9215 SATA controller
  PCI/ACPI: Fix companion lookup for device 0 on the root bus
  PCI: Keep both device and resource name for config space remaps
  PCI: xgene: Removed unused ".bus_shift" initialisers from pci-xgene.c
  PCI: vmd: Update type of the __iomem pointers
  PCI: iproc: Convert to use the new ECAM constants
  PCI: thunder-pem: Add constant for custom ".bus_shift" initialiser
  PCI: Unify ECAM constants in native PCI Express drivers
  PCI: Disable PTM during suspend to save power
  PCI/PTM: Save/restore Precision Time Measurement Capability for suspend/resume
  PCI: Mark AMD Raven iGPU ATS as broken in some platforms
  PCI: j721e: Get offset within "syscon" from "ti,syscon-pcie-ctrl" phandle arg
  dt-bindings: PCI: Add EP mode dt-bindings for TI's J7200 SoC
  dt-bindings: PCI: Add host mode dt-bindings for TI's J7200 SoC
  dt-bindings: pci: ti,j721e: Fix "ti,syscon-pcie-ctrl" to take argument
  PCI: dwc: Set 32-bit DMA mask for MSI target address allocation
  PCI: qcom: Add support for configuring BDF to SID mapping for SM8250
  PCI: Reduce pci_set_cacheline_size() message to debug level
  PCI: Remove unused HAVE_PCI_SET_MWI
  PCI: qcom: Add SM8250 SoC support
  ...

1 files changed, 31 insertions, 27 deletions

diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
index ad7da4ea43a5..bcd1cd9ba8c8 100644
--- a/drivers/pci/controller/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/of.h>
+#include <linux/platform_device.h>
 
 #include "pcie-designware.h"
 #include <linux/pci-epc.h>
@@ -160,8 +161,8 @@ static int dw_pcie_ep_inbound_atu(struct dw_pcie_ep *ep, u8 func_no,
 	u32 free_win;
 	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
 
-	free_win = find_first_zero_bit(ep->ib_window_map, ep->num_ib_windows);
-	if (free_win >= ep->num_ib_windows) {
+	free_win = find_first_zero_bit(ep->ib_window_map, pci->num_ib_windows);
+	if (free_win >= pci->num_ib_windows) {
 		dev_err(pci->dev, "No free inbound window\n");
 		return -EINVAL;
 	}
@@ -186,8 +187,8 @@ static int dw_pcie_ep_outbound_atu(struct dw_pcie_ep *ep, u8 func_no,
 	u32 free_win;
 	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
 
-	free_win = find_first_zero_bit(ep->ob_window_map, ep->num_ob_windows);
-	if (free_win >= ep->num_ob_windows) {
+	free_win = find_first_zero_bit(ep->ob_window_map, pci->num_ob_windows);
+	if (free_win >= pci->num_ob_windows) {
 		dev_err(pci->dev, "No free outbound window\n");
 		return -EINVAL;
 	}
@@ -263,8 +264,9 @@ static int dw_pcie_find_index(struct dw_pcie_ep *ep, phys_addr_t addr,
 			      u32 *atu_index)
 {
 	u32 index;
+	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
 
-	for (index = 0; index < ep->num_ob_windows; index++) {
+	for (index = 0; index < pci->num_ob_windows; index++) {
 		if (ep->outbound_addr[index] != addr)
 			continue;
 		*atu_index = index;
@@ -676,55 +678,57 @@ int dw_pcie_ep_init(struct dw_pcie_ep *ep)
 	int ret;
 	void *addr;
 	u8 func_no;
+	struct resource *res;
 	struct pci_epc *epc;
 	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
 	struct device *dev = pci->dev;
+	struct platform_device *pdev = to_platform_device(dev);
 	struct device_node *np = dev->of_node;
 	const struct pci_epc_features *epc_features;
 	struct dw_pcie_ep_func *ep_func;
 
 	INIT_LIST_HEAD(&ep->func_list);
 
-	if (!pci->dbi_base || !pci->dbi_base2) {
-		dev_err(dev, "dbi_base/dbi_base2 is not populated\n");
-		return -EINVAL;
+	if (!pci->dbi_base) {
+		res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dbi");
+		pci->dbi_base = devm_pci_remap_cfg_resource(dev, res);
+		if (IS_ERR(pci->dbi_base))
+			return PTR_ERR(pci->dbi_base);
 	}
 
-	ret = of_property_read_u32(np, "num-ib-windows", &ep->num_ib_windows);
-	if (ret < 0) {
-		dev_err(dev, "Unable to read *num-ib-windows* property\n");
-		return ret;
-	}
-	if (ep->num_ib_windows > MAX_IATU_IN) {
-		dev_err(dev, "Invalid *num-ib-windows*\n");
-		return -EINVAL;
+	if (!pci->dbi_base2) {
+		res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dbi2");
+		if (!res)
+			pci->dbi_base2 = pci->dbi_base + SZ_4K;
+		else {
+			pci->dbi_base2 = devm_pci_remap_cfg_resource(dev, res);
+			if (IS_ERR(pci->dbi_base2))
+				return PTR_ERR(pci->dbi_base2);
+		}
 	}
 
-	ret = of_property_read_u32(np, "num-ob-windows", &ep->num_ob_windows);
-	if (ret < 0) {
-		dev_err(dev, "Unable to read *num-ob-windows* property\n");
-		return ret;
-	}
-	if (ep->num_ob_windows > MAX_IATU_OUT) {
-		dev_err(dev, "Invalid *num-ob-windows*\n");
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "addr_space");
+	if (!res)
 		return -EINVAL;
-	}
+
+	ep->phys_base = res->start;
+	ep->addr_size = resource_size(res);
 
 	ep->ib_window_map = devm_kcalloc(dev,
-					 BITS_TO_LONGS(ep->num_ib_windows),
+					 BITS_TO_LONGS(pci->num_ib_windows),
 					 sizeof(long),
 					 GFP_KERNEL);
 	if (!ep->ib_window_map)
 		return -ENOMEM;
 
 	ep->ob_window_map = devm_kcalloc(dev,
-					 BITS_TO_LONGS(ep->num_ob_windows),
+					 BITS_TO_LONGS(pci->num_ob_windows),
 					 sizeof(long),
 					 GFP_KERNEL);
 	if (!ep->ob_window_map)
 		return -ENOMEM;
 
-	addr = devm_kcalloc(dev, ep->num_ob_windows, sizeof(phys_addr_t),
+	addr = devm_kcalloc(dev, pci->num_ob_windows, sizeof(phys_addr_t),
 			    GFP_KERNEL);
 	if (!addr)
 		return -ENOMEM;