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/linux/Documentation/devicetree/bindings/pci/
H A Dhost-generic-pci.yaml31 While ECAM extends this by 4 bits to accommodate 4k of function space:
38 description: Depends on the layout of configuration space (CAM vs ECAM
46 - const: pci-host-ecam-generic
51 some Cavium ThunderX processors. These devices have ECAM-based config
55 const: cavium,pci-host-thunder-ecam
60 HiSilicon Hip06/Hip07 PCIe host bridge in almost-ECAM mode. Some
61 firmware places the host controller in a mode where it is ECAM
64 - hisilicon,hip06-pcie-ecam
65 - hisilicon,hip07-pcie-ecam
69 that cover all config, MMIO and I/O spaces in a [mostly] ECAM
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H A Dnvidia,tegra194-pcie.yaml39 - description: aperture to access the configuration space through ECAM.
48 - const: ecam
338 <0x24 0x30000000 0x0 0x10000000>; /* ECAM (256MB) */
339 reg-names = "appl", "config", "atu_dma", "dbi", "ecam";
H A Damazon,al-alpine-v3-pcie.yaml27 - description: PCIe ECAM space
/linux/drivers/pci/
H A Decam.c11 #include <linux/pci-ecam.h>
44 /* ECAM-compliant platforms need not supply ops->bus_shift */ in pci_ecam_create()
59 dev_warn(dev, "ECAM area %pR can only accommodate %pR (reduced from %pR desired)\n", in pci_ecam_create()
67 cfg->res.name = "PCI ECAM"; in pci_ecam_create()
72 dev_err(dev, "can't claim ECAM area %pR: address conflict with %s %pR\n", in pci_ecam_create()
92 dev_info(dev, "ECAM at %pR for %pR\n", &cfg->res, &cfg->busr); in pci_ecam_create()
96 dev_err(dev, "ECAM ioremap failed\n"); in pci_ecam_create()
199 /* ECAM ops */
212 /* ECAM ops for 32-bit access only (non-compliant) */
223 /* ECAM ops for 32-bit read only (non-compliant) */
H A DMakefile32 obj-$(CONFIG_PCI_ECAM) += ecam.o
/linux/drivers/pci/controller/
H A Dpci-host-generic.c14 #include <linux/pci-ecam.h>
33 * The Synopsys DesignWare PCIe controller in ECAM mode will not filter in pci_dw_valid_device()
65 { .compatible = "pci-host-ecam-generic",
68 { .compatible = "marvell,armada8k-pcie-ecam",
71 { .compatible = "socionext,synquacer-pcie-ecam",
74 { .compatible = "snps,dw-pcie-ecam",
H A Dpci-thunder-pem.c13 #include <linux/pci-ecam.h>
25 * Enhanced Configuration Access Mechanism (ECAM)
27 * N.B. This is a non-standard platform-specific ECAM bus shift value. For
29 * include/linux/pci-ecam.h.
H A Dpcie-xilinx-common.h7 #include <linux/pci-ecam.h>
H A Dpcie-xilinx-cpm.c322 _IC(CFG_TIMEOUT, "ECAM access timeout"),
334 _IC(CFG_PCIE_TIMEOUT, "PCIe ECAM access timeout"),
335 _IC(CFG_ERR_POISON, "ECAM poisoned completion received"),
/linux/Documentation/PCI/
H A Dacpi-info.rst52 the device-specific details. The host bridge registers also include ECAM
66 bridge registers (including ECAM space) in PNP0C02 catch-all devices [6].
67 With the exception of ECAM, the bridge register space is device-specific
72 descriptors in the PNP0A03 device for bridge registers, including ECAM,
84 The PCIe spec requires the Enhanced Configuration Access Method (ECAM)
86 ia64 SAL interface [7]. A host bridge consumes ECAM memory address space
88 defines the ECAM address space layout and functionality; only the base of
92 The MCFG table must describe the ECAM space of non-hot pluggable host
94 a _CBA method in the PNP0A03 device describes the ECAM space of a
167 access to the Configuration Space, the ECAM is required as defined in
/linux/arch/loongarch/pci/
H A Dacpi.c11 #include <linux/pci-ecam.h>
120 cfg->res.name = "PCI ECAM"; in arch_pci_ecam_create()
125 dev_err(dev, "can't claim ECAM area %pR: address conflict with %s %pR\n", in arch_pci_ecam_create()
139 dev_info(dev, "ECAM at %pR for %pR\n", &cfg->res, &cfg->busr); in arch_pci_ecam_create()
145 dev_err(dev, "ECAM ioremap failed\n"); in arch_pci_ecam_create()
168 dev_err(dev, "%04x:%pR ECAM region not found, use default value\n", seg, bus_res); in pci_acpi_setup_ecam_mapping()
186 dev_err(dev, "%04x:%pR error %ld mapping ECAM\n", seg, bus_res, PTR_ERR(cfg)); in pci_acpi_setup_ecam_mapping()
/linux/include/linux/
H A Dpci-ecam.h18 * Enhanced Configuration Access Mechanism (ECAM)
57 * use ECAM.
69 struct device *parent;/* ECAM res was from this dev */
81 /* default ECAM ops */
/linux/drivers/pci/controller/dwc/
H A Dpcie-hisi.c16 #include <linux/pci-ecam.h>
160 .compatible = "hisilicon,hip06-pcie-ecam",
164 .compatible = "hisilicon,hip07-pcie-ecam",
173 .name = "hisi-pcie-almost-ecam",
H A Dpcie-al.c12 #include <linux/pci-ecam.h>
267 dev_warn(pcie->dev, "ECAM window size is larger than 256MB. Cutting off at 256\n"); in al_pcie_config_prepare()
H A Dpcie-tegra194-acpi.c12 #include <linux/pci-ecam.h>
/linux/Documentation/translations/zh_CN/PCI/
H A Dacpi-info.rst60 ECAM，尽管对[6]的严格解释可能禁止这样做。旧的x86和ia64内核假定所有的地址空间描述
69 型配置访问方法（ECAM）。主桥消耗ECAM内存地址空间并将内存访问转换为PCI配置访问。该规范
/linux/drivers/pci/controller/plda/
H A Dpcie-microchip-host.c21 #include <linux/pci-ecam.h>
299 static void mc_pcie_enable_msi(struct mc_pcie *port, void __iomem *ecam) in mc_pcie_enable_msi() argument
306 reg = readw_relaxed(ecam + MC_MSI_CAP_CTRL_OFFSET + PCI_MSI_FLAGS); in mc_pcie_enable_msi()
308 writew_relaxed(reg, ecam + MC_MSI_CAP_CTRL_OFFSET + PCI_MSI_FLAGS); in mc_pcie_enable_msi()
313 writew_relaxed(reg, ecam + MC_MSI_CAP_CTRL_OFFSET + PCI_MSI_FLAGS); in mc_pcie_enable_msi()
317 ecam + MC_MSI_CAP_CTRL_OFFSET + PCI_MSI_ADDRESS_LO); in mc_pcie_enable_msi()
319 ecam + MC_MSI_CAP_CTRL_OFFSET + PCI_MSI_ADDRESS_HI); in mc_pcie_enable_msi()
/linux/arch/arm64/boot/dts/cavium/
H A Dthunder2-99xx.dtsi98 compatible = "pci-host-ecam-generic";
104 /* ECAM at 0x3000_0000 - 0x4000_0000 */
/linux/arch/arm64/boot/dts/arm/
H A Dmorello-sdp.dts113 compatible = "pci-host-ecam-generic";
135 compatible = "pci-host-ecam-generic";
/linux/drivers/acpi/
H A Dpci_mcfg.c14 #include <linux/pci-ecam.h>
234 dev_info(&root->device->dev, "MCFG quirk: ECAM at %pR for %pR with %ps\n", in pci_mcfg_apply_quirks()
278 * Allow quirks to override default ECAM ops and CFG resource in pci_mcfg_lookup()
/linux/arch/xtensa/boot/dts/
H A Dvirt.dts49 compatible = "pci-host-ecam-generic";
/linux/arch/mips/boot/dts/loongson/
H A Dloongson64v_4core_virtio.dts69 compatible = "pci-host-ecam-generic";
/linux/arch/x86/pci/
H A Dmmconfig_32.c134 printk(KERN_INFO "PCI: Using ECAM for extended config space\n"); in pci_mmcfg_arch_init()
H A Dmmconfig_64.c118 pr_err("can't map ECAM at %pR\n", &cfg->res); in pci_mmcfg_arch_map()
/linux/arch/arm64/boot/dts/nvidia/
H A Dtegra234.dtsi4518 <0x35 0x30000000 0x0 0x10000000>; /* ECAM (256MB) */
4519 reg-names = "appl", "config", "atu_dma", "dbi", "ecam";
4572 <0x38 0x30000000 0x0 0x10000000>; /* ECAM (256MB) */
4573 reg-names = "appl", "config", "atu_dma", "dbi", "ecam";
4626 <0x3b 0x30000000 0x0 0x10000000>; /* ECAM (256MB) */
4627 reg-names = "appl", "config", "atu_dma", "dbi", "ecam";
4720 <0x20 0xb0000000 0x0 0x10000000>; /* ECAM (256MB) */
4721 reg-names = "appl", "config", "atu_dma", "dbi", "ecam";
4774 <0x20 0xf0000000 0x0 0x10000000>; /* ECAM (256MB) */
4775 reg-names = "appl", "config", "atu_dma", "dbi", "ecam";
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