mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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bd6bf7c104
-----BEGIN PGP SIGNATURE----- iQJIBAABCgAyFiEEgMe7l+5h9hnxdsnuWYigwDrT+vwFAlvPV7IUHGJoZWxnYWFz QGdvb2dsZS5jb20ACgkQWYigwDrT+vyaUg//WnCaRIu2oKOp8c/bplZJDW5eT10d oYAN9qeyptU9RYrg4KBNbZL9UKGFTk3AoN5AUjrk8njxc/dY2ra/79esOvZyyYQy qLXBvrXKg3yZnlNlnyBneGSnUVwv/kl2hZS+kmYby2YOa8AH/mhU0FIFvsnfRK2I XvwABFm2ZYvXCqh3e5HXaHhOsR88NQ9In0AXVC7zHGqv1r/bMVn2YzPZHL/zzMrF mS79tdBTH+shSvchH9zvfgIs+UEKvvjEJsG2liwMkcQaV41i5dZjSKTdJ3EaD/Y2 BreLxXRnRYGUkBqfcon16Yx+P6VCefDRLa+RhwYO3dxFF2N4ZpblbkIdBATwKLjL npiGc6R8yFjTmZU0/7olMyMCm7igIBmDvWPcsKEE8R4PezwoQv6YKHBMwEaflIbl Rv4IUqjJzmQPaA0KkRoAVgAKHxldaNqno/6G1FR2gwz+fr68p5WSYFlQ3axhvTjc bBMJpB/fbp9WmpGJieTt6iMOI6V1pnCVjibM5ZON59WCFfytHGGpbYW05gtZEod4 d/3yRuU53JRSj3jQAQuF1B6qYhyxvv5YEtAQqIFeHaPZ67nL6agw09hE+TlXjWbE rTQRShflQ+ydnzIfKicFgy6/53D5hq7iH2l7HwJVXbXRQ104T5DB/XHUUTr+UWQn /Nkhov32/n6GjxQ= =58I4 -----END PGP SIGNATURE----- Merge tag 'pci-v4.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: - Fix ASPM link_state teardown on removal (Lukas Wunner) - Fix misleading _OSC ASPM message (Sinan Kaya) - Make _OSC optional for PCI (Sinan Kaya) - Don't initialize ASPM link state when ACPI_FADT_NO_ASPM is set (Patrick Talbert) - Remove x86 and arm64 node-local allocation for host bridge structures (Punit Agrawal) - Pay attention to device-specific _PXM node values (Jonathan Cameron) - Support new Immediate Readiness bit (Felipe Balbi) - Differentiate between pciehp surprise and safe removal (Lukas Wunner) - Remove unnecessary pciehp includes (Lukas Wunner) - Drop pciehp hotplug_slot_ops wrappers (Lukas Wunner) - Tolerate PCIe Slot Presence Detect being hardwired to zero to workaround broken hardware, e.g., the Wilocity switch/wireless device (Lukas Wunner) - Unify pciehp controller & slot structs (Lukas Wunner) - Constify hotplug_slot_ops (Lukas Wunner) - Drop hotplug_slot_info (Lukas Wunner) - Embed hotplug_slot struct into users instead of allocating it separately (Lukas Wunner) - Initialize PCIe port service drivers directly instead of relying on initcall ordering (Keith Busch) - Restore PCI config state after a slot reset (Keith Busch) - Save/restore DPC config state along with other PCI config state (Keith Busch) - Reference count devices during AER handling to avoid race issue with concurrent hot removal (Keith Busch) - If an Upstream Port reports ERR_FATAL, don't try to read the Port's config space because it is probably unreachable (Keith Busch) - During error handling, use slot-specific reset instead of secondary bus reset to avoid link up/down issues on hotplug ports (Keith Busch) - Restore previous AER/DPC handling that does not remove and re-enumerate devices on ERR_FATAL (Keith Busch) - Notify all drivers that may be affected by error recovery resets (Keith Busch) - Always generate error recovery uevents, even if a driver doesn't have error callbacks (Keith Busch) - Make PCIe link active reporting detection generic (Keith Busch) - Support D3cold in PCIe hierarchies during system sleep and runtime, including hotplug and Thunderbolt ports (Mika Westerberg) - Handle hpmemsize/hpiosize kernel parameters uniformly, whether slots are empty or occupied (Jon Derrick) - Remove duplicated include from pci/pcie/err.c and unused variable from cpqphp (YueHaibing) - Remove driver pci_cleanup_aer_uncorrect_error_status() calls (Oza Pawandeep) - Uninline PCI bus accessors for better ftracing (Keith Busch) - Remove unused AER Root Port .error_resume method (Keith Busch) - Use kfifo in AER instead of a local version (Keith Busch) - Use threaded IRQ in AER bottom half (Keith Busch) - Use managed resources in AER core (Keith Busch) - Reuse pcie_port_find_device() for AER injection (Keith Busch) - Abstract AER interrupt handling to disconnect error injection (Keith Busch) - Refactor AER injection callbacks to simplify future improvments (Keith Busch) - Remove unused Netronome NFP32xx Device IDs (Jakub Kicinski) - Use bitmap_zalloc() for dma_alias_mask (Andy Shevchenko) - Add switch fall-through annotations (Gustavo A. R. Silva) - Remove unused Switchtec quirk variable (Joshua Abraham) - Fix pci.c kernel-doc warning (Randy Dunlap) - Remove trivial PCI wrappers for DMA APIs (Christoph Hellwig) - Add Intel GPU device IDs to spurious interrupt quirk (Bin Meng) - Run Switchtec DMA aliasing quirk only on NTB endpoints to avoid useless dmesg errors (Logan Gunthorpe) - Update Switchtec NTB documentation (Wesley Yung) - Remove redundant "default n" from Kconfig (Bartlomiej Zolnierkiewicz) - Avoid panic when drivers enable MSI/MSI-X twice (Tonghao Zhang) - Add PCI support for peer-to-peer DMA (Logan Gunthorpe) - Add sysfs group for PCI peer-to-peer memory statistics (Logan Gunthorpe) - Add PCI peer-to-peer DMA scatterlist mapping interface (Logan Gunthorpe) - Add PCI configfs/sysfs helpers for use by peer-to-peer users (Logan Gunthorpe) - Add PCI peer-to-peer DMA driver writer's documentation (Logan Gunthorpe) - Add block layer flag to indicate driver support for PCI peer-to-peer DMA (Logan Gunthorpe) - Map Infiniband scatterlists for peer-to-peer DMA if they contain P2P memory (Logan Gunthorpe) - Register nvme-pci CMB buffer as PCI peer-to-peer memory (Logan Gunthorpe) - Add nvme-pci support for PCI peer-to-peer memory in requests (Logan Gunthorpe) - Use PCI peer-to-peer memory in nvme (Stephen Bates, Steve Wise, Christoph Hellwig, Logan Gunthorpe) - Cache VF config space size to optimize enumeration of many VFs (KarimAllah Ahmed) - Remove unnecessary <linux/pci-ats.h> include (Bjorn Helgaas) - Fix VMD AERSID quirk Device ID matching (Jon Derrick) - Fix Cadence PHY handling during probe (Alan Douglas) - Signal Cadence Endpoint interrupts via AXI region 0 instead of last region (Alan Douglas) - Write Cadence Endpoint MSI interrupts with 32 bits of data (Alan Douglas) - Remove redundant controller tests for "device_type == pci" (Rob Herring) - Document R-Car E3 (R8A77990) bindings (Tho Vu) - Add device tree support for R-Car r8a7744 (Biju Das) - Drop unused mvebu PCIe capability code (Thomas Petazzoni) - Add shared PCI bridge emulation code (Thomas Petazzoni) - Convert mvebu to use shared PCI bridge emulation (Thomas Petazzoni) - Add aardvark Root Port emulation (Thomas Petazzoni) - Support 100MHz/200MHz refclocks for i.MX6 (Lucas Stach) - Add initial power management for i.MX7 (Leonard Crestez) - Add PME_Turn_Off support for i.MX7 (Leonard Crestez) - Fix qcom runtime power management error handling (Bjorn Andersson) - Update TI dra7xx unaligned access errata workaround for host mode as well as endpoint mode (Vignesh R) - Fix kirin section mismatch warning (Nathan Chancellor) - Remove iproc PAXC slot check to allow VF support (Jitendra Bhivare) - Quirk Keystone K2G to limit MRRS to 256 (Kishon Vijay Abraham I) - Update Keystone to use MRRS quirk for host bridge instead of open coding (Kishon Vijay Abraham I) - Refactor Keystone link establishment (Kishon Vijay Abraham I) - Simplify and speed up Keystone link training (Kishon Vijay Abraham I) - Remove unused Keystone host_init argument (Kishon Vijay Abraham I) - Merge Keystone driver files into one (Kishon Vijay Abraham I) - Remove redundant Keystone platform_set_drvdata() (Kishon Vijay Abraham I) - Rename Keystone functions for uniformity (Kishon Vijay Abraham I) - Add Keystone device control module DT binding (Kishon Vijay Abraham I) - Use SYSCON API to get Keystone control module device IDs (Kishon Vijay Abraham I) - Clean up Keystone PHY handling (Kishon Vijay Abraham I) - Use runtime PM APIs to enable Keystone clock (Kishon Vijay Abraham I) - Clean up Keystone config space access checks (Kishon Vijay Abraham I) - Get Keystone outbound window count from DT (Kishon Vijay Abraham I) - Clean up Keystone outbound window configuration (Kishon Vijay Abraham I) - Clean up Keystone DBI setup (Kishon Vijay Abraham I) - Clean up Keystone ks_pcie_link_up() (Kishon Vijay Abraham I) - Fix Keystone IRQ status checking (Kishon Vijay Abraham I) - Add debug messages for all Keystone errors (Kishon Vijay Abraham I) - Clean up Keystone includes and macros (Kishon Vijay Abraham I) - Fix Mediatek unchecked return value from devm_pci_remap_iospace() (Gustavo A. R. Silva) - Fix Mediatek endpoint/port matching logic (Honghui Zhang) - Change Mediatek Root Port Class Code to PCI_CLASS_BRIDGE_PCI (Honghui Zhang) - Remove redundant Mediatek PM domain check (Honghui Zhang) - Convert Mediatek to pci_host_probe() (Honghui Zhang) - Fix Mediatek MSI enablement (Honghui Zhang) - Add Mediatek system PM support for MT2712 and MT7622 (Honghui Zhang) - Add Mediatek loadable module support (Honghui Zhang) - Detach VMD resources after stopping root bus to prevent orphan resources (Jon Derrick) - Convert pcitest build process to that used by other tools (iio, perf, etc) (Gustavo Pimentel) * tag 'pci-v4.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (140 commits) PCI/AER: Refactor error injection fallbacks PCI/AER: Abstract AER interrupt handling PCI/AER: Reuse existing pcie_port_find_device() interface PCI/AER: Use managed resource allocations PCI: pcie: Remove redundant 'default n' from Kconfig PCI: aardvark: Implement emulated root PCI bridge config space PCI: mvebu: Convert to PCI emulated bridge config space PCI: mvebu: Drop unused PCI express capability code PCI: Introduce PCI bridge emulated config space common logic PCI: vmd: Detach resources after stopping root bus nvmet: Optionally use PCI P2P memory nvmet: Introduce helper functions to allocate and free request SGLs nvme-pci: Add support for P2P memory in requests nvme-pci: Use PCI p2pmem subsystem to manage the CMB IB/core: Ensure we map P2P memory correctly in rdma_rw_ctx_[init|destroy]() block: Add PCI P2P flag for request queue PCI/P2PDMA: Add P2P DMA driver writer's documentation docs-rst: Add a new directory for PCI documentation PCI/P2PDMA: Introduce configfs/sysfs enable attribute helpers PCI/P2PDMA: Add PCI p2pmem DMA mappings to adjust the bus offset ...
396 lines
11 KiB
C
396 lines
11 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Synopsys DesignWare PCIe host controller driver
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*
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* Copyright (C) 2013 Samsung Electronics Co., Ltd.
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* http://www.samsung.com
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*
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* Author: Jingoo Han <jg1.han@samsung.com>
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*/
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#ifndef _PCIE_DESIGNWARE_H
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#define _PCIE_DESIGNWARE_H
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#include <linux/dma-mapping.h>
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#include <linux/irq.h>
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#include <linux/msi.h>
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#include <linux/pci.h>
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#include <linux/pci-epc.h>
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#include <linux/pci-epf.h>
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/* Parameters for the waiting for link up routine */
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#define LINK_WAIT_MAX_RETRIES 10
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#define LINK_WAIT_USLEEP_MIN 90000
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#define LINK_WAIT_USLEEP_MAX 100000
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/* Parameters for the waiting for iATU enabled routine */
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#define LINK_WAIT_MAX_IATU_RETRIES 5
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#define LINK_WAIT_IATU 9
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/* Synopsys-specific PCIe configuration registers */
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#define PCIE_PORT_LINK_CONTROL 0x710
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#define PORT_LINK_MODE_MASK (0x3f << 16)
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#define PORT_LINK_MODE_1_LANES (0x1 << 16)
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#define PORT_LINK_MODE_2_LANES (0x3 << 16)
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#define PORT_LINK_MODE_4_LANES (0x7 << 16)
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#define PORT_LINK_MODE_8_LANES (0xf << 16)
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#define PCIE_PORT_DEBUG0 0x728
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#define PORT_LOGIC_LTSSM_STATE_MASK 0x1f
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#define PORT_LOGIC_LTSSM_STATE_L0 0x11
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#define PCIE_LINK_WIDTH_SPEED_CONTROL 0x80C
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#define PORT_LOGIC_SPEED_CHANGE (0x1 << 17)
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#define PORT_LOGIC_LINK_WIDTH_MASK (0x1f << 8)
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#define PORT_LOGIC_LINK_WIDTH_1_LANES (0x1 << 8)
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#define PORT_LOGIC_LINK_WIDTH_2_LANES (0x2 << 8)
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#define PORT_LOGIC_LINK_WIDTH_4_LANES (0x4 << 8)
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#define PORT_LOGIC_LINK_WIDTH_8_LANES (0x8 << 8)
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#define PCIE_MSI_ADDR_LO 0x820
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#define PCIE_MSI_ADDR_HI 0x824
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#define PCIE_MSI_INTR0_ENABLE 0x828
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#define PCIE_MSI_INTR0_MASK 0x82C
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#define PCIE_MSI_INTR0_STATUS 0x830
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#define PCIE_ATU_VIEWPORT 0x900
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#define PCIE_ATU_REGION_INBOUND (0x1 << 31)
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#define PCIE_ATU_REGION_OUTBOUND (0x0 << 31)
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#define PCIE_ATU_REGION_INDEX2 (0x2 << 0)
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#define PCIE_ATU_REGION_INDEX1 (0x1 << 0)
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#define PCIE_ATU_REGION_INDEX0 (0x0 << 0)
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#define PCIE_ATU_CR1 0x904
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#define PCIE_ATU_TYPE_MEM (0x0 << 0)
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#define PCIE_ATU_TYPE_IO (0x2 << 0)
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#define PCIE_ATU_TYPE_CFG0 (0x4 << 0)
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#define PCIE_ATU_TYPE_CFG1 (0x5 << 0)
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#define PCIE_ATU_CR2 0x908
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#define PCIE_ATU_ENABLE (0x1 << 31)
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#define PCIE_ATU_BAR_MODE_ENABLE (0x1 << 30)
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#define PCIE_ATU_LOWER_BASE 0x90C
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#define PCIE_ATU_UPPER_BASE 0x910
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#define PCIE_ATU_LIMIT 0x914
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#define PCIE_ATU_LOWER_TARGET 0x918
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#define PCIE_ATU_BUS(x) (((x) & 0xff) << 24)
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#define PCIE_ATU_DEV(x) (((x) & 0x1f) << 19)
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#define PCIE_ATU_FUNC(x) (((x) & 0x7) << 16)
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#define PCIE_ATU_UPPER_TARGET 0x91C
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#define PCIE_MISC_CONTROL_1_OFF 0x8BC
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#define PCIE_DBI_RO_WR_EN (0x1 << 0)
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/*
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* iATU Unroll-specific register definitions
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* From 4.80 core version the address translation will be made by unroll
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*/
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#define PCIE_ATU_UNR_REGION_CTRL1 0x00
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#define PCIE_ATU_UNR_REGION_CTRL2 0x04
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#define PCIE_ATU_UNR_LOWER_BASE 0x08
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#define PCIE_ATU_UNR_UPPER_BASE 0x0C
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#define PCIE_ATU_UNR_LIMIT 0x10
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#define PCIE_ATU_UNR_LOWER_TARGET 0x14
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#define PCIE_ATU_UNR_UPPER_TARGET 0x18
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/* Register address builder */
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#define PCIE_GET_ATU_OUTB_UNR_REG_OFFSET(region) \
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((0x3 << 20) | ((region) << 9))
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#define PCIE_GET_ATU_INB_UNR_REG_OFFSET(region) \
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((0x3 << 20) | ((region) << 9) | (0x1 << 8))
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#define MAX_MSI_IRQS 256
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#define MAX_MSI_IRQS_PER_CTRL 32
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#define MAX_MSI_CTRLS (MAX_MSI_IRQS / MAX_MSI_IRQS_PER_CTRL)
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#define MSI_REG_CTRL_BLOCK_SIZE 12
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#define MSI_DEF_NUM_VECTORS 32
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/* Maximum number of inbound/outbound iATUs */
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#define MAX_IATU_IN 256
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#define MAX_IATU_OUT 256
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struct pcie_port;
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struct dw_pcie;
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struct dw_pcie_ep;
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enum dw_pcie_region_type {
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DW_PCIE_REGION_UNKNOWN,
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DW_PCIE_REGION_INBOUND,
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DW_PCIE_REGION_OUTBOUND,
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};
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enum dw_pcie_device_mode {
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DW_PCIE_UNKNOWN_TYPE,
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DW_PCIE_EP_TYPE,
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DW_PCIE_LEG_EP_TYPE,
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DW_PCIE_RC_TYPE,
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};
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struct dw_pcie_host_ops {
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int (*rd_own_conf)(struct pcie_port *pp, int where, int size, u32 *val);
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int (*wr_own_conf)(struct pcie_port *pp, int where, int size, u32 val);
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int (*rd_other_conf)(struct pcie_port *pp, struct pci_bus *bus,
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unsigned int devfn, int where, int size, u32 *val);
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int (*wr_other_conf)(struct pcie_port *pp, struct pci_bus *bus,
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unsigned int devfn, int where, int size, u32 val);
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int (*host_init)(struct pcie_port *pp);
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void (*msi_set_irq)(struct pcie_port *pp, int irq);
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void (*msi_clear_irq)(struct pcie_port *pp, int irq);
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phys_addr_t (*get_msi_addr)(struct pcie_port *pp);
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u32 (*get_msi_data)(struct pcie_port *pp, int pos);
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void (*scan_bus)(struct pcie_port *pp);
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void (*set_num_vectors)(struct pcie_port *pp);
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int (*msi_host_init)(struct pcie_port *pp);
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void (*msi_irq_ack)(int irq, struct pcie_port *pp);
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};
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struct pcie_port {
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u8 root_bus_nr;
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u64 cfg0_base;
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void __iomem *va_cfg0_base;
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u32 cfg0_size;
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u64 cfg1_base;
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void __iomem *va_cfg1_base;
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u32 cfg1_size;
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resource_size_t io_base;
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phys_addr_t io_bus_addr;
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u32 io_size;
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u64 mem_base;
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phys_addr_t mem_bus_addr;
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u32 mem_size;
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struct resource *cfg;
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struct resource *io;
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struct resource *mem;
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struct resource *busn;
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int irq;
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const struct dw_pcie_host_ops *ops;
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int msi_irq;
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struct irq_domain *irq_domain;
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struct irq_domain *msi_domain;
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dma_addr_t msi_data;
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u32 num_vectors;
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u32 irq_status[MAX_MSI_CTRLS];
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raw_spinlock_t lock;
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DECLARE_BITMAP(msi_irq_in_use, MAX_MSI_IRQS);
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};
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enum dw_pcie_as_type {
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DW_PCIE_AS_UNKNOWN,
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DW_PCIE_AS_MEM,
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DW_PCIE_AS_IO,
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};
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struct dw_pcie_ep_ops {
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void (*ep_init)(struct dw_pcie_ep *ep);
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int (*raise_irq)(struct dw_pcie_ep *ep, u8 func_no,
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enum pci_epc_irq_type type, u16 interrupt_num);
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};
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struct dw_pcie_ep {
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struct pci_epc *epc;
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struct dw_pcie_ep_ops *ops;
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phys_addr_t phys_base;
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size_t addr_size;
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size_t page_size;
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u8 bar_to_atu[6];
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phys_addr_t *outbound_addr;
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unsigned long *ib_window_map;
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unsigned long *ob_window_map;
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u32 num_ib_windows;
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u32 num_ob_windows;
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void __iomem *msi_mem;
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phys_addr_t msi_mem_phys;
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u8 msi_cap; /* MSI capability offset */
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u8 msix_cap; /* MSI-X capability offset */
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};
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struct dw_pcie_ops {
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u64 (*cpu_addr_fixup)(struct dw_pcie *pcie, u64 cpu_addr);
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u32 (*read_dbi)(struct dw_pcie *pcie, void __iomem *base, u32 reg,
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size_t size);
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void (*write_dbi)(struct dw_pcie *pcie, void __iomem *base, u32 reg,
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size_t size, u32 val);
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int (*link_up)(struct dw_pcie *pcie);
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int (*start_link)(struct dw_pcie *pcie);
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void (*stop_link)(struct dw_pcie *pcie);
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};
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struct dw_pcie {
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struct device *dev;
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void __iomem *dbi_base;
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void __iomem *dbi_base2;
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u32 num_viewport;
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u8 iatu_unroll_enabled;
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struct pcie_port pp;
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struct dw_pcie_ep ep;
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const struct dw_pcie_ops *ops;
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};
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#define to_dw_pcie_from_pp(port) container_of((port), struct dw_pcie, pp)
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#define to_dw_pcie_from_ep(endpoint) \
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container_of((endpoint), struct dw_pcie, ep)
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int dw_pcie_read(void __iomem *addr, int size, u32 *val);
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int dw_pcie_write(void __iomem *addr, int size, u32 val);
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u32 __dw_pcie_read_dbi(struct dw_pcie *pci, void __iomem *base, u32 reg,
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size_t size);
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void __dw_pcie_write_dbi(struct dw_pcie *pci, void __iomem *base, u32 reg,
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size_t size, u32 val);
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int dw_pcie_link_up(struct dw_pcie *pci);
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int dw_pcie_wait_for_link(struct dw_pcie *pci);
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void dw_pcie_prog_outbound_atu(struct dw_pcie *pci, int index,
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int type, u64 cpu_addr, u64 pci_addr,
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u32 size);
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int dw_pcie_prog_inbound_atu(struct dw_pcie *pci, int index, int bar,
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u64 cpu_addr, enum dw_pcie_as_type as_type);
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void dw_pcie_disable_atu(struct dw_pcie *pci, int index,
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enum dw_pcie_region_type type);
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void dw_pcie_setup(struct dw_pcie *pci);
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static inline void dw_pcie_writel_dbi(struct dw_pcie *pci, u32 reg, u32 val)
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{
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__dw_pcie_write_dbi(pci, pci->dbi_base, reg, 0x4, val);
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}
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|
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static inline u32 dw_pcie_readl_dbi(struct dw_pcie *pci, u32 reg)
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{
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return __dw_pcie_read_dbi(pci, pci->dbi_base, reg, 0x4);
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}
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static inline void dw_pcie_writew_dbi(struct dw_pcie *pci, u32 reg, u16 val)
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{
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__dw_pcie_write_dbi(pci, pci->dbi_base, reg, 0x2, val);
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}
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static inline u16 dw_pcie_readw_dbi(struct dw_pcie *pci, u32 reg)
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|
{
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return __dw_pcie_read_dbi(pci, pci->dbi_base, reg, 0x2);
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}
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|
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static inline void dw_pcie_writeb_dbi(struct dw_pcie *pci, u32 reg, u8 val)
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|
{
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__dw_pcie_write_dbi(pci, pci->dbi_base, reg, 0x1, val);
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}
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|
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static inline u8 dw_pcie_readb_dbi(struct dw_pcie *pci, u32 reg)
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|
{
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|
return __dw_pcie_read_dbi(pci, pci->dbi_base, reg, 0x1);
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|
}
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|
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static inline void dw_pcie_writel_dbi2(struct dw_pcie *pci, u32 reg, u32 val)
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|
{
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|
__dw_pcie_write_dbi(pci, pci->dbi_base2, reg, 0x4, val);
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|
}
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|
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static inline u32 dw_pcie_readl_dbi2(struct dw_pcie *pci, u32 reg)
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|
{
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|
return __dw_pcie_read_dbi(pci, pci->dbi_base2, reg, 0x4);
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|
}
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|
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static inline void dw_pcie_dbi_ro_wr_en(struct dw_pcie *pci)
|
|
{
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|
u32 reg;
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|
u32 val;
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|
|
|
reg = PCIE_MISC_CONTROL_1_OFF;
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val = dw_pcie_readl_dbi(pci, reg);
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|
val |= PCIE_DBI_RO_WR_EN;
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|
dw_pcie_writel_dbi(pci, reg, val);
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|
}
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|
|
|
static inline void dw_pcie_dbi_ro_wr_dis(struct dw_pcie *pci)
|
|
{
|
|
u32 reg;
|
|
u32 val;
|
|
|
|
reg = PCIE_MISC_CONTROL_1_OFF;
|
|
val = dw_pcie_readl_dbi(pci, reg);
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|
val &= ~PCIE_DBI_RO_WR_EN;
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|
dw_pcie_writel_dbi(pci, reg, val);
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|
}
|
|
|
|
#ifdef CONFIG_PCIE_DW_HOST
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|
irqreturn_t dw_handle_msi_irq(struct pcie_port *pp);
|
|
void dw_pcie_msi_init(struct pcie_port *pp);
|
|
void dw_pcie_free_msi(struct pcie_port *pp);
|
|
void dw_pcie_setup_rc(struct pcie_port *pp);
|
|
int dw_pcie_host_init(struct pcie_port *pp);
|
|
int dw_pcie_allocate_domains(struct pcie_port *pp);
|
|
#else
|
|
static inline irqreturn_t dw_handle_msi_irq(struct pcie_port *pp)
|
|
{
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
static inline void dw_pcie_msi_init(struct pcie_port *pp)
|
|
{
|
|
}
|
|
|
|
static inline void dw_pcie_free_msi(struct pcie_port *pp)
|
|
{
|
|
}
|
|
|
|
static inline void dw_pcie_setup_rc(struct pcie_port *pp)
|
|
{
|
|
}
|
|
|
|
static inline int dw_pcie_host_init(struct pcie_port *pp)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int dw_pcie_allocate_domains(struct pcie_port *pp)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_PCIE_DW_EP
|
|
void dw_pcie_ep_linkup(struct dw_pcie_ep *ep);
|
|
int dw_pcie_ep_init(struct dw_pcie_ep *ep);
|
|
void dw_pcie_ep_exit(struct dw_pcie_ep *ep);
|
|
int dw_pcie_ep_raise_legacy_irq(struct dw_pcie_ep *ep, u8 func_no);
|
|
int dw_pcie_ep_raise_msi_irq(struct dw_pcie_ep *ep, u8 func_no,
|
|
u8 interrupt_num);
|
|
int dw_pcie_ep_raise_msix_irq(struct dw_pcie_ep *ep, u8 func_no,
|
|
u16 interrupt_num);
|
|
void dw_pcie_ep_reset_bar(struct dw_pcie *pci, enum pci_barno bar);
|
|
#else
|
|
static inline void dw_pcie_ep_linkup(struct dw_pcie_ep *ep)
|
|
{
|
|
}
|
|
|
|
static inline int dw_pcie_ep_init(struct dw_pcie_ep *ep)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void dw_pcie_ep_exit(struct dw_pcie_ep *ep)
|
|
{
|
|
}
|
|
|
|
static inline int dw_pcie_ep_raise_legacy_irq(struct dw_pcie_ep *ep, u8 func_no)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int dw_pcie_ep_raise_msi_irq(struct dw_pcie_ep *ep, u8 func_no,
|
|
u8 interrupt_num)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int dw_pcie_ep_raise_msix_irq(struct dw_pcie_ep *ep, u8 func_no,
|
|
u16 interrupt_num)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void dw_pcie_ep_reset_bar(struct dw_pcie *pci, enum pci_barno bar)
|
|
{
|
|
}
|
|
#endif
|
|
#endif /* _PCIE_DESIGNWARE_H */
|