// SPDX-License-Identifier: GPL-2.0 /* * Copyright 2018-2020 Broadcom. */ #include <linux/delay.h> #include <linux/dma-mapping.h> #include <linux/firmware.h> #include <linux/fs.h> #include <linux/idr.h> #include <linux/interrupt.h> #include <linux/panic_notifier.h> #include <linux/kref.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/pci.h> #include <linux/pci_regs.h> #include <uapi/linux/misc/bcm_vk.h> #include "bcm_vk.h" #define PCI_DEVICE_ID_VALKYRIE … #define PCI_DEVICE_ID_VIPER … static DEFINE_IDA(bcm_vk_ida); enum soc_idx { … }; enum img_idx { … }; struct load_image_entry { … }; #define NUM_BOOT_STAGES … /* default firmware images names */ static const struct load_image_entry image_tab[][NUM_BOOT_STAGES] = …; /* Location of memory base addresses of interest in BAR1 */ /* Load Boot1 to start of ITCM */ #define BAR1_CODEPUSH_BASE_BOOT1 … /* Allow minimum 1s for Load Image timeout responses */ #define LOAD_IMAGE_TIMEOUT_MS … /* Image startup timeouts */ #define BOOT1_STARTUP_TIMEOUT_MS … #define BOOT2_STARTUP_TIMEOUT_MS … /* 1ms wait for checking the transfer complete status */ #define TXFR_COMPLETE_TIMEOUT_MS … /* MSIX usages */ #define VK_MSIX_MSGQ_MAX … #define VK_MSIX_NOTF_MAX … #define VK_MSIX_TTY_MAX … #define VK_MSIX_IRQ_MAX … #define VK_MSIX_IRQ_MIN_REQ … /* Number of bits set in DMA mask*/ #define BCM_VK_DMA_BITS … /* Ucode boot wait time */ #define BCM_VK_UCODE_BOOT_US … /* 50% margin */ #define BCM_VK_UCODE_BOOT_MAX_US … /* deinit time for the card os after receiving doorbell */ #define BCM_VK_DEINIT_TIME_MS … /* * module parameters */ static bool auto_load = …; module_param(auto_load, bool, 0444); MODULE_PARM_DESC(…) …; static uint nr_scratch_pages = …; module_param(nr_scratch_pages, uint, 0444); MODULE_PARM_DESC(…) …; static uint nr_ib_sgl_blk = …; module_param(nr_ib_sgl_blk, uint, 0444); MODULE_PARM_DESC(…) …; /* * alerts that could be generated from peer */ const struct bcm_vk_entry bcm_vk_peer_err[BCM_VK_PEER_ERR_NUM] = …; /* alerts detected by the host */ const struct bcm_vk_entry bcm_vk_host_err[BCM_VK_HOST_ERR_NUM] = …; irqreturn_t bcm_vk_notf_irqhandler(int irq, void *dev_id) { … } static int bcm_vk_intf_ver_chk(struct bcm_vk *vk) { … } static void bcm_vk_log_notf(struct bcm_vk *vk, struct bcm_vk_alert *alert, struct bcm_vk_entry const *entry_tab, const u32 table_size) { … } static void bcm_vk_dump_peer_log(struct bcm_vk *vk) { … } void bcm_vk_handle_notf(struct bcm_vk *vk) { … } static inline int bcm_vk_wait(struct bcm_vk *vk, enum pci_barno bar, u64 offset, u32 mask, u32 value, unsigned long timeout_ms) { … } static void bcm_vk_get_card_info(struct bcm_vk *vk) { … } static void bcm_vk_get_proc_mon_info(struct bcm_vk *vk) { … } static int bcm_vk_sync_card_info(struct bcm_vk *vk) { … } void bcm_vk_blk_drv_access(struct bcm_vk *vk) { … } static void bcm_vk_buf_notify(struct bcm_vk *vk, void *bufp, dma_addr_t host_buf_addr, u32 buf_size) { … } static int bcm_vk_load_image_by_type(struct bcm_vk *vk, u32 load_type, const char *filename) { … } static u32 bcm_vk_next_boot_image(struct bcm_vk *vk) { … } static enum soc_idx get_soc_idx(struct bcm_vk *vk) { … } static const char *get_load_fw_name(struct bcm_vk *vk, const struct load_image_entry *entry) { … } int bcm_vk_auto_load_all_images(struct bcm_vk *vk) { … } static int bcm_vk_trigger_autoload(struct bcm_vk *vk) { … } /* * deferred work queue for draining and auto download. */ static void bcm_vk_wq_handler(struct work_struct *work) { … } static long bcm_vk_load_image(struct bcm_vk *vk, const struct vk_image __user *arg) { … } static int bcm_vk_reset_successful(struct bcm_vk *vk) { … } static void bcm_to_v_reset_doorbell(struct bcm_vk *vk, u32 db_val) { … } static int bcm_vk_trigger_reset(struct bcm_vk *vk) { … } static long bcm_vk_reset(struct bcm_vk *vk, struct vk_reset __user *arg) { … } static int bcm_vk_mmap(struct file *file, struct vm_area_struct *vma) { … } static long bcm_vk_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { … } static const struct file_operations bcm_vk_fops = …; static int bcm_vk_on_panic(struct notifier_block *nb, unsigned long e, void *p) { … } static int bcm_vk_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { … } void bcm_vk_release_data(struct kref *kref) { … } static void bcm_vk_remove(struct pci_dev *pdev) { … } static void bcm_vk_shutdown(struct pci_dev *pdev) { … } static const struct pci_device_id bcm_vk_ids[] = …; MODULE_DEVICE_TABLE(pci, bcm_vk_ids); static struct pci_driver pci_driver = …; module_pci_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; MODULE_VERSION(…) …;
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