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/* SPDX-License-Identifier: GPL-2.0-only */ /* * Microsemi Switchtec PCIe Driver * Copyright (c) 2017, Microsemi Corporation */ #ifndef _SWITCHTEC_H #define _SWITCHTEC_H #include <linux/pci.h> #include <linux/cdev.h> #define SWITCHTEC_MRPC_PAYLOAD_SIZE 1024 #define SWITCHTEC_MAX_PFF_CSR 255 #define SWITCHTEC_EVENT_OCCURRED BIT(0) #define SWITCHTEC_EVENT_CLEAR BIT(0) #define SWITCHTEC_EVENT_EN_LOG BIT(1) #define SWITCHTEC_EVENT_EN_CLI BIT(2) #define SWITCHTEC_EVENT_EN_IRQ BIT(3) #define SWITCHTEC_EVENT_FATAL BIT(4) #define SWITCHTEC_EVENT_NOT_SUPP BIT(31) #define SWITCHTEC_DMA_MRPC_EN BIT(0) #define MRPC_GAS_READ 0x29 #define MRPC_GAS_WRITE 0x87 #define MRPC_CMD_ID(x) ((x) & 0xffff) enum { SWITCHTEC_GAS_MRPC_OFFSET = 0x0000, SWITCHTEC_GAS_TOP_CFG_OFFSET = 0x1000, SWITCHTEC_GAS_SW_EVENT_OFFSET = 0x1800, SWITCHTEC_GAS_SYS_INFO_OFFSET = 0x2000, SWITCHTEC_GAS_FLASH_INFO_OFFSET = 0x2200, SWITCHTEC_GAS_PART_CFG_OFFSET = 0x4000, SWITCHTEC_GAS_NTB_OFFSET = 0x10000, SWITCHTEC_GAS_PFF_CSR_OFFSET = 0x134000, }; enum switchtec_gen { SWITCHTEC_GEN3, SWITCHTEC_GEN4, SWITCHTEC_GEN5, }; struct mrpc_regs { u8 input_data[SWITCHTEC_MRPC_PAYLOAD_SIZE]; u8 output_data[SWITCHTEC_MRPC_PAYLOAD_SIZE]; u32 cmd; u32 status; u32 ret_value; u32 dma_en; u64 dma_addr; u32 dma_vector; u32 dma_ver; } __packed; enum mrpc_status { SWITCHTEC_MRPC_STATUS_INPROGRESS = 1, SWITCHTEC_MRPC_STATUS_DONE = 2, SWITCHTEC_MRPC_STATUS_ERROR = 0xFF, SWITCHTEC_MRPC_STATUS_INTERRUPTED = 0x100, }; struct sw_event_regs { u64 event_report_ctrl; u64 reserved1; u64 part_event_bitmap; u64 reserved2; u32 global_summary; u32 reserved3[3]; u32 stack_error_event_hdr; u32 stack_error_event_data; u32 reserved4[4]; u32 ppu_error_event_hdr; u32 ppu_error_event_data; u32 reserved5[4]; u32 isp_error_event_hdr; u32 isp_error_event_data; u32 reserved6[4]; u32 sys_reset_event_hdr; u32 reserved7[5]; u32 fw_exception_hdr; u32 reserved8[5]; u32 fw_nmi_hdr; u32 reserved9[5]; u32 fw_non_fatal_hdr; u32 reserved10[5]; u32 fw_fatal_hdr; u32 reserved11[5]; u32 twi_mrpc_comp_hdr; u32 twi_mrpc_comp_data; u32 reserved12[4]; u32 twi_mrpc_comp_async_hdr; u32 twi_mrpc_comp_async_data; u32 reserved13[4]; u32 cli_mrpc_comp_hdr; u32 cli_mrpc_comp_data; u32 reserved14[4]; u32 cli_mrpc_comp_async_hdr; u32 cli_mrpc_comp_async_data; u32 reserved15[4]; u32 gpio_interrupt_hdr; u32 gpio_interrupt_data; u32 reserved16[4]; u32 gfms_event_hdr; u32 gfms_event_data; u32 reserved17[4]; } __packed; enum { SWITCHTEC_GEN3_CFG0_RUNNING = 0x04, SWITCHTEC_GEN3_CFG1_RUNNING = 0x05, SWITCHTEC_GEN3_IMG0_RUNNING = 0x03, SWITCHTEC_GEN3_IMG1_RUNNING = 0x07, }; enum { SWITCHTEC_GEN4_MAP0_RUNNING = 0x00, SWITCHTEC_GEN4_MAP1_RUNNING = 0x01, SWITCHTEC_GEN4_KEY0_RUNNING = 0x02, SWITCHTEC_GEN4_KEY1_RUNNING = 0x03, SWITCHTEC_GEN4_BL2_0_RUNNING = 0x04, SWITCHTEC_GEN4_BL2_1_RUNNING = 0x05, SWITCHTEC_GEN4_CFG0_RUNNING = 0x06, SWITCHTEC_GEN4_CFG1_RUNNING = 0x07, SWITCHTEC_GEN4_IMG0_RUNNING = 0x08, SWITCHTEC_GEN4_IMG1_RUNNING = 0x09, }; enum { SWITCHTEC_GEN4_KEY0_ACTIVE = 0, SWITCHTEC_GEN4_KEY1_ACTIVE = 1, SWITCHTEC_GEN4_BL2_0_ACTIVE = 0, SWITCHTEC_GEN4_BL2_1_ACTIVE = 1, SWITCHTEC_GEN4_CFG0_ACTIVE = 0, SWITCHTEC_GEN4_CFG1_ACTIVE = 1, SWITCHTEC_GEN4_IMG0_ACTIVE = 0, SWITCHTEC_GEN4_IMG1_ACTIVE = 1, }; struct sys_info_regs_gen3 { u32 reserved1; u32 vendor_table_revision; u32 table_format_version; u32 partition_id; u32 cfg_file_fmt_version; u16 cfg_running; u16 img_running; u32 reserved2[57]; char vendor_id[8]; char product_id[16]; char product_revision[4]; char component_vendor[8]; u16 component_id; u8 component_revision; } __packed; struct sys_info_regs_gen4 { u16 gas_layout_ver; u8 evlist_ver; u8 reserved1; u16 mgmt_cmd_set_ver; u16 fabric_cmd_set_ver; u32 reserved2[2]; u8 mrpc_uart_ver; u8 mrpc_twi_ver; u8 mrpc_eth_ver; u8 mrpc_inband_ver; u32 reserved3[7]; u32 fw_update_tmo; u32 xml_version_cfg; u32 xml_version_img; u32 partition_id; u16 bl2_running; u16 cfg_running; u16 img_running; u16 key_running; u32 reserved4[43]; u32 vendor_seeprom_twi; u32 vendor_table_revision; u32 vendor_specific_info[2]; u16 p2p_vendor_id; u16 p2p_device_id; u8 p2p_revision_id; u8 reserved5[3]; u32 p2p_class_id; u16 subsystem_vendor_id; u16 subsystem_id; u32 p2p_serial_number[2]; u8 mac_addr[6]; u8 reserved6[2]; u32 reserved7[3]; char vendor_id[8]; char product_id[24]; char product_revision[2]; u16 reserved8; } __packed; struct sys_info_regs { u32 device_id; u32 device_version; u32 firmware_version; union { struct sys_info_regs_gen3 gen3; struct sys_info_regs_gen4 gen4; }; } __packed; struct partition_info { u32 address; u32 length; }; struct flash_info_regs_gen3 { u32 flash_part_map_upd_idx; struct active_partition_info_gen3 { u32 address; u32 build_version; u32 build_string; } active_img; struct active_partition_info_gen3 active_cfg; struct active_partition_info_gen3 inactive_img; struct active_partition_info_gen3 inactive_cfg; u32 flash_length; struct partition_info cfg0; struct partition_info cfg1; struct partition_info img0; struct partition_info img1; struct partition_info nvlog; struct partition_info vendor[8]; }; struct flash_info_regs_gen4 { u32 flash_address; u32 flash_length; struct active_partition_info_gen4 { unsigned char bl2; unsigned char cfg; unsigned char img; unsigned char key; } active_flag; u32 reserved[3]; struct partition_info map0; struct partition_info map1; struct partition_info key0; struct partition_info key1; struct partition_info bl2_0; struct partition_info bl2_1; struct partition_info cfg0; struct partition_info cfg1; struct partition_info img0; struct partition_info img1; struct partition_info nvlog; struct partition_info vendor[8]; }; struct flash_info_regs { union { struct flash_info_regs_gen3 gen3; struct flash_info_regs_gen4 gen4; }; }; enum { SWITCHTEC_NTB_REG_INFO_OFFSET = 0x0000, SWITCHTEC_NTB_REG_CTRL_OFFSET = 0x4000, SWITCHTEC_NTB_REG_DBMSG_OFFSET = 0x64000, }; struct ntb_info_regs { u8 partition_count; u8 partition_id; u16 reserved1; u64 ep_map; u16 requester_id; u16 reserved2; u32 reserved3[4]; struct nt_partition_info { u32 xlink_enabled; u32 target_part_low; u32 target_part_high; u32 reserved; } ntp_info[48]; } __packed; struct part_cfg_regs { u32 status; u32 state; u32 port_cnt; u32 usp_port_mode; u32 usp_pff_inst_id; u32 vep_pff_inst_id; u32 dsp_pff_inst_id[47]; u32 reserved1[11]; u16 vep_vector_number; u16 usp_vector_number; u32 port_event_bitmap; u32 reserved2[3]; u32 part_event_summary; u32 reserved3[3]; u32 part_reset_hdr; u32 part_reset_data[5]; u32 mrpc_comp_hdr; u32 mrpc_comp_data[5]; u32 mrpc_comp_async_hdr; u32 mrpc_comp_async_data[5]; u32 dyn_binding_hdr; u32 dyn_binding_data[5]; u32 intercomm_notify_hdr; u32 intercomm_notify_data[5]; u32 reserved4[153]; } __packed; enum { NTB_CTRL_PART_OP_LOCK = 0x1, NTB_CTRL_PART_OP_CFG = 0x2, NTB_CTRL_PART_OP_RESET = 0x3, NTB_CTRL_PART_STATUS_NORMAL = 0x1, NTB_CTRL_PART_STATUS_LOCKED = 0x2, NTB_CTRL_PART_STATUS_LOCKING = 0x3, NTB_CTRL_PART_STATUS_CONFIGURING = 0x4, NTB_CTRL_PART_STATUS_RESETTING = 0x5, NTB_CTRL_BAR_VALID = 1 << 0, NTB_CTRL_BAR_DIR_WIN_EN = 1 << 4, NTB_CTRL_BAR_LUT_WIN_EN = 1 << 5, NTB_CTRL_REQ_ID_EN = 1 << 0, NTB_CTRL_LUT_EN = 1 << 0, }; struct ntb_ctrl_regs { u32 partition_status; u32 partition_op; u32 partition_ctrl; u32 bar_setup; u32 bar_error; u16 lut_table_entries; u16 lut_table_offset; u32 lut_error; u16 req_id_table_size; u16 req_id_table_offset; u32 req_id_error; u32 reserved1[7]; struct { u32 ctl; u32 win_size; u64 xlate_addr; } bar_entry[6]; struct { u32 win_size; u32 reserved[3]; } bar_ext_entry[6]; u32 reserved2[192]; u32 req_id_table[512]; u32 reserved3[256]; u64 lut_entry[512]; } __packed; #define NTB_DBMSG_IMSG_STATUS BIT_ULL(32) #define NTB_DBMSG_IMSG_MASK BIT_ULL(40) struct ntb_dbmsg_regs { u32 reserved1[1024]; u64 odb; u64 odb_mask; u64 idb; u64 idb_mask; u8 idb_vec_map[64]; u32 msg_map; u32 reserved2; struct { u32 msg; u32 status; } omsg[4]; struct { u32 msg; u8 status; u8 mask; u8 src; u8 reserved; } imsg[4]; u8 reserved3[3928]; u8 msix_table[1024]; u8 reserved4[3072]; u8 pba[24]; u8 reserved5[4072]; } __packed; enum { SWITCHTEC_PART_CFG_EVENT_RESET = 1 << 0, SWITCHTEC_PART_CFG_EVENT_MRPC_CMP = 1 << 1, SWITCHTEC_PART_CFG_EVENT_MRPC_ASYNC_CMP = 1 << 2, SWITCHTEC_PART_CFG_EVENT_DYN_PART_CMP = 1 << 3, }; struct pff_csr_regs { u16 vendor_id; u16 device_id; u16 pcicmd; u16 pcists; u32 pci_class; u32 pci_opts; union { u32 pci_bar[6]; u64 pci_bar64[3]; }; u32 pci_cardbus; u32 pci_subsystem_id; u32 pci_expansion_rom; u32 pci_cap_ptr; u32 reserved1; u32 pci_irq; u32 pci_cap_region[48]; u32 pcie_cap_region[448]; u32 indirect_gas_window[128]; u32 indirect_gas_window_off; u32 reserved[127]; u32 pff_event_summary; u32 reserved2[3]; u32 aer_in_p2p_hdr; u32 aer_in_p2p_data[5]; u32 aer_in_vep_hdr; u32 aer_in_vep_data[5]; u32 dpc_hdr; u32 dpc_data[5]; u32 cts_hdr; u32 cts_data[5]; u32 uec_hdr; u32 uec_data[5]; u32 hotplug_hdr; u32 hotplug_data[5]; u32 ier_hdr; u32 ier_data[5]; u32 threshold_hdr; u32 threshold_data[5]; u32 power_mgmt_hdr; u32 power_mgmt_data[5]; u32 tlp_throttling_hdr; u32 tlp_throttling_data[5]; u32 force_speed_hdr; u32 force_speed_data[5]; u32 credit_timeout_hdr; u32 credit_timeout_data[5]; u32 link_state_hdr; u32 link_state_data[5]; u32 reserved4[174]; } __packed; struct switchtec_ntb; struct dma_mrpc_output { u32 status; u32 cmd_id; u32 rtn_code; u32 output_size; u8 data[SWITCHTEC_MRPC_PAYLOAD_SIZE]; }; struct switchtec_dev { struct pci_dev *pdev; struct device dev; struct cdev cdev; enum switchtec_gen gen; int partition; int partition_count; int pff_csr_count; char pff_local[SWITCHTEC_MAX_PFF_CSR]; void __iomem *mmio; struct mrpc_regs __iomem *mmio_mrpc; struct sw_event_regs __iomem *mmio_sw_event; struct sys_info_regs __iomem *mmio_sys_info; struct flash_info_regs __iomem *mmio_flash_info; struct ntb_info_regs __iomem *mmio_ntb; struct part_cfg_regs __iomem *mmio_part_cfg; struct part_cfg_regs __iomem *mmio_part_cfg_all; struct pff_csr_regs __iomem *mmio_pff_csr; /* * The mrpc mutex must be held when accessing the other * mrpc_ fields, alive flag and stuser->state field */ struct mutex mrpc_mutex; struct list_head mrpc_queue; int mrpc_busy; struct work_struct mrpc_work; struct delayed_work mrpc_timeout; bool alive; wait_queue_head_t event_wq; atomic_t event_cnt; struct work_struct link_event_work; void (*link_notifier)(struct switchtec_dev *stdev); u8 link_event_count[SWITCHTEC_MAX_PFF_CSR]; struct switchtec_ntb *sndev; struct dma_mrpc_output *dma_mrpc; dma_addr_t dma_mrpc_dma_addr; }; static inline struct switchtec_dev *to_stdev(struct device *dev) { return container_of(dev, struct switchtec_dev, dev); } extern const struct class switchtec_class; #endif