/* * This file is provided under a dual BSD/GPLv2 license. When using or * redistributing this file, you may do so under either license. * * GPL LICENSE SUMMARY * * Copyright (C) 2016 Advanced Micro Devices, Inc. All Rights Reserved. * Copyright (C) 2016 T-Platforms. All Rights Reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * BSD LICENSE * * Copyright (C) 2016 Advanced Micro Devices, Inc. All Rights Reserved. * Copyright (C) 2016 T-Platforms. All Rights Reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copy * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * Neither the name of AMD Corporation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * AMD PCIe NTB Linux driver * * Contact Information: * Xiangliang Yu <[email protected]> */ #include <linux/debugfs.h> #include <linux/delay.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/module.h> #include <linux/acpi.h> #include <linux/pci.h> #include <linux/random.h> #include <linux/slab.h> #include <linux/ntb.h> #include "ntb_hw_amd.h" #define NTB_NAME … #define NTB_DESC … #define NTB_VER … MODULE_DESCRIPTION(…); MODULE_VERSION(…); MODULE_LICENSE(…) …; MODULE_AUTHOR(…) …; static const struct file_operations amd_ntb_debugfs_info; static struct dentry *debugfs_dir; static int ndev_mw_to_bar(struct amd_ntb_dev *ndev, int idx) { … } static int amd_ntb_mw_count(struct ntb_dev *ntb, int pidx) { … } static int amd_ntb_mw_get_align(struct ntb_dev *ntb, int pidx, int idx, resource_size_t *addr_align, resource_size_t *size_align, resource_size_t *size_max) { … } static int amd_ntb_mw_set_trans(struct ntb_dev *ntb, int pidx, int idx, dma_addr_t addr, resource_size_t size) { … } static int amd_ntb_get_link_status(struct amd_ntb_dev *ndev) { … } static int amd_link_is_up(struct amd_ntb_dev *ndev) { … } static u64 amd_ntb_link_is_up(struct ntb_dev *ntb, enum ntb_speed *speed, enum ntb_width *width) { … } static int amd_ntb_link_enable(struct ntb_dev *ntb, enum ntb_speed max_speed, enum ntb_width max_width) { … } static int amd_ntb_link_disable(struct ntb_dev *ntb) { … } static int amd_ntb_peer_mw_count(struct ntb_dev *ntb) { … } static int amd_ntb_peer_mw_get_addr(struct ntb_dev *ntb, int idx, phys_addr_t *base, resource_size_t *size) { … } static u64 amd_ntb_db_valid_mask(struct ntb_dev *ntb) { … } static int amd_ntb_db_vector_count(struct ntb_dev *ntb) { … } static u64 amd_ntb_db_vector_mask(struct ntb_dev *ntb, int db_vector) { … } static u64 amd_ntb_db_read(struct ntb_dev *ntb) { … } static int amd_ntb_db_clear(struct ntb_dev *ntb, u64 db_bits) { … } static int amd_ntb_db_set_mask(struct ntb_dev *ntb, u64 db_bits) { … } static int amd_ntb_db_clear_mask(struct ntb_dev *ntb, u64 db_bits) { … } static int amd_ntb_peer_db_set(struct ntb_dev *ntb, u64 db_bits) { … } static int amd_ntb_spad_count(struct ntb_dev *ntb) { … } static u32 amd_ntb_spad_read(struct ntb_dev *ntb, int idx) { … } static int amd_ntb_spad_write(struct ntb_dev *ntb, int idx, u32 val) { … } static u32 amd_ntb_peer_spad_read(struct ntb_dev *ntb, int pidx, int sidx) { … } static int amd_ntb_peer_spad_write(struct ntb_dev *ntb, int pidx, int sidx, u32 val) { … } static const struct ntb_dev_ops amd_ntb_ops = …; static void amd_ack_smu(struct amd_ntb_dev *ndev, u32 bit) { … } static void amd_handle_event(struct amd_ntb_dev *ndev, int vec) { … } static void amd_handle_db_event(struct amd_ntb_dev *ndev, int vec) { … } static irqreturn_t ndev_interrupt(struct amd_ntb_dev *ndev, int vec) { … } static irqreturn_t ndev_vec_isr(int irq, void *dev) { … } static irqreturn_t ndev_irq_isr(int irq, void *dev) { … } static int ndev_init_isr(struct amd_ntb_dev *ndev, int msix_min, int msix_max) { … } static void ndev_deinit_isr(struct amd_ntb_dev *ndev) { … } static ssize_t ndev_debugfs_read(struct file *filp, char __user *ubuf, size_t count, loff_t *offp) { … } static void ndev_init_debugfs(struct amd_ntb_dev *ndev) { … } static void ndev_deinit_debugfs(struct amd_ntb_dev *ndev) { … } static inline void ndev_init_struct(struct amd_ntb_dev *ndev, struct pci_dev *pdev) { … } static int amd_poll_link(struct amd_ntb_dev *ndev) { … } static void amd_link_hb(struct work_struct *work) { … } static int amd_init_isr(struct amd_ntb_dev *ndev) { … } static void amd_set_side_info_reg(struct amd_ntb_dev *ndev, bool peer) { … } static void amd_clear_side_info_reg(struct amd_ntb_dev *ndev, bool peer) { … } static void amd_init_side_info(struct amd_ntb_dev *ndev) { … } static void amd_deinit_side_info(struct amd_ntb_dev *ndev) { … } static int amd_init_ntb(struct amd_ntb_dev *ndev) { … } static enum ntb_topo amd_get_topo(struct amd_ntb_dev *ndev) { … } static int amd_init_dev(struct amd_ntb_dev *ndev) { … } static void amd_deinit_dev(struct amd_ntb_dev *ndev) { … } static int amd_ntb_init_pci(struct amd_ntb_dev *ndev, struct pci_dev *pdev) { … } static void amd_ntb_deinit_pci(struct amd_ntb_dev *ndev) { … } static int amd_ntb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) { … } static void amd_ntb_pci_remove(struct pci_dev *pdev) { … } static void amd_ntb_pci_shutdown(struct pci_dev *pdev) { … } static const struct file_operations amd_ntb_debugfs_info = …; static const struct ntb_dev_data dev_data[] = …; static const struct pci_device_id amd_ntb_pci_tbl[] = …; MODULE_DEVICE_TABLE(pci, amd_ntb_pci_tbl); static struct pci_driver amd_ntb_pci_driver = …; static int __init amd_ntb_pci_driver_init(void) { … } module_init(…) …; static void __exit amd_ntb_pci_driver_exit(void) { … } module_exit(amd_ntb_pci_driver_exit);
Codebase Browser
linux