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Diffstat (limited to 'drivers/misc/habanalabs/habanalabs.h')
| -rw-r--r-- | drivers/misc/habanalabs/habanalabs.h | 1464 |
1 files changed, 1464 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/habanalabs.h b/drivers/misc/habanalabs/habanalabs.h new file mode 100644 index 000000000000..a7c95e9f9b9a --- /dev/null +++ b/drivers/misc/habanalabs/habanalabs.h @@ -0,0 +1,1464 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * Copyright 2016-2019 HabanaLabs, Ltd. + * All Rights Reserved. + * + */ + +#ifndef HABANALABSP_H_ +#define HABANALABSP_H_ + +#include "include/armcp_if.h" +#include "include/qman_if.h" + +#define pr_fmt(fmt) "habanalabs: " fmt + +#include <linux/cdev.h> +#include <linux/iopoll.h> +#include <linux/irqreturn.h> +#include <linux/dma-fence.h> +#include <linux/dma-direction.h> +#include <linux/scatterlist.h> +#include <linux/hashtable.h> + +#define HL_NAME "habanalabs" + +#define HL_MMAP_CB_MASK (0x8000000000000000ull >> PAGE_SHIFT) + +#define HL_PENDING_RESET_PER_SEC 5 + +#define HL_DEVICE_TIMEOUT_USEC 1000000 /* 1 s */ + +#define HL_HEARTBEAT_PER_USEC 5000000 /* 5 s */ + +#define HL_PLL_LOW_JOB_FREQ_USEC 5000000 /* 5 s */ + +#define HL_MAX_QUEUES 128 + +#define HL_MAX_JOBS_PER_CS 64 + +/* MUST BE POWER OF 2 and larger than 1 */ +#define HL_MAX_PENDING_CS 64 + +/* Memory */ +#define MEM_HASH_TABLE_BITS 7 /* 1 << 7 buckets */ + +/* MMU */ +#define MMU_HASH_TABLE_BITS 7 /* 1 << 7 buckets */ + +/** + * struct pgt_info - MMU hop page info. + * @node: hash linked-list node for the pgts hash of pgts. + * @addr: physical address of the pgt. + * @ctx: pointer to the owner ctx. + * @num_of_ptes: indicates how many ptes are used in the pgt. + * + * The MMU page tables hierarchy is placed on the DRAM. When a new level (hop) + * is needed during mapping, a new page is allocated and this structure holds + * its essential information. During unmapping, if no valid PTEs remained in the + * page, it is freed with its pgt_info structure. + */ +struct pgt_info { + struct hlist_node node; + u64 addr; + struct hl_ctx *ctx; + int num_of_ptes; +}; + +struct hl_device; +struct hl_fpriv; + +/** + * enum hl_queue_type - Supported QUEUE types. + * @QUEUE_TYPE_NA: queue is not available. + * @QUEUE_TYPE_EXT: external queue which is a DMA channel that may access the + * host. + * @QUEUE_TYPE_INT: internal queue that performs DMA inside the device's + * memories and/or operates the compute engines. + * @QUEUE_TYPE_CPU: S/W queue for communication with the device's CPU. + */ +enum hl_queue_type { + QUEUE_TYPE_NA, + QUEUE_TYPE_EXT, + QUEUE_TYPE_INT, + QUEUE_TYPE_CPU +}; + +/** + * struct hw_queue_properties - queue information. + * @type: queue type. + * @kmd_only: true if only KMD is allowed to send a job to this queue, false + * otherwise. + */ +struct hw_queue_properties { + enum hl_queue_type type; + u8 kmd_only; +}; + +/** + * enum vm_type_t - virtual memory mapping request information. + * @VM_TYPE_USERPTR: mapping of user memory to device virtual address. + * @VM_TYPE_PHYS_PACK: mapping of DRAM memory to device virtual address. + */ +enum vm_type_t { + VM_TYPE_USERPTR, + VM_TYPE_PHYS_PACK +}; + +/** + * enum hl_device_hw_state - H/W device state. use this to understand whether + * to do reset before hw_init or not + * @HL_DEVICE_HW_STATE_CLEAN: H/W state is clean. i.e. after hard reset + * @HL_DEVICE_HW_STATE_DIRTY: H/W state is dirty. i.e. we started to execute + * hw_init + */ +enum hl_device_hw_state { + HL_DEVICE_HW_STATE_CLEAN = 0, + HL_DEVICE_HW_STATE_DIRTY +}; + +/** + * struct asic_fixed_properties - ASIC specific immutable properties. + * @hw_queues_props: H/W queues properties. + * @armcp_info: received various information from ArmCP regarding the H/W. e.g. + * available sensors. + * @uboot_ver: F/W U-boot version. + * @preboot_ver: F/W Preboot version. + * @sram_base_address: SRAM physical start address. + * @sram_end_address: SRAM physical end address. + * @sram_user_base_address - SRAM physical start address for user access. + * @dram_base_address: DRAM physical start address. + * @dram_end_address: DRAM physical end address. + * @dram_user_base_address: DRAM physical start address for user access. + * @dram_size: DRAM total size. + * @dram_pci_bar_size: size of PCI bar towards DRAM. + * @host_phys_base_address: base physical address of host memory for + * transactions that the device generates. + * @max_power_default: max power of the device after reset + * @va_space_host_start_address: base address of virtual memory range for + * mapping host memory. + * @va_space_host_end_address: end address of virtual memory range for + * mapping host memory. + * @va_space_dram_start_address: base address of virtual memory range for + * mapping DRAM memory. + * @va_space_dram_end_address: end address of virtual memory range for + * mapping DRAM memory. + * @dram_size_for_default_page_mapping: DRAM size needed to map to avoid page + * fault. + * @mmu_pgt_addr: base physical address in DRAM of MMU page tables. + * @mmu_dram_default_page_addr: DRAM default page physical address. + * @mmu_pgt_size: MMU page tables total size. + * @mmu_pte_size: PTE size in MMU page tables. + * @mmu_hop_table_size: MMU hop table size. + * @mmu_hop0_tables_total_size: total size of MMU hop0 tables. + * @dram_page_size: page size for MMU DRAM allocation. + * @cfg_size: configuration space size on SRAM. + * @sram_size: total size of SRAM. + * @max_asid: maximum number of open contexts (ASIDs). + * @num_of_events: number of possible internal H/W IRQs. + * @psoc_pci_pll_nr: PCI PLL NR value. + * @psoc_pci_pll_nf: PCI PLL NF value. + * @psoc_pci_pll_od: PCI PLL OD value. + * @psoc_pci_pll_div_factor: PCI PLL DIV FACTOR 1 value. + * @completion_queues_count: number of completion queues. + * @high_pll: high PLL frequency used by the device. + * @cb_pool_cb_cnt: number of CBs in the CB pool. + * @cb_pool_cb_size: size of each CB in the CB pool. + * @tpc_enabled_mask: which TPCs are enabled. + */ +struct asic_fixed_properties { + struct hw_queue_properties hw_queues_props[HL_MAX_QUEUES]; + struct armcp_info armcp_info; + char uboot_ver[VERSION_MAX_LEN]; + char preboot_ver[VERSION_MAX_LEN]; + u64 sram_base_address; + u64 sram_end_address; + u64 sram_user_base_address; + u64 dram_base_address; + u64 dram_end_address; + u64 dram_user_base_address; + u64 dram_size; + u64 dram_pci_bar_size; + u64 host_phys_base_address; + u64 max_power_default; + u64 va_space_host_start_address; + u64 va_space_host_end_address; + u64 va_space_dram_start_address; + u64 va_space_dram_end_address; + u64 dram_size_for_default_page_mapping; + u64 mmu_pgt_addr; + u64 mmu_dram_default_page_addr; + u32 mmu_pgt_size; + u32 mmu_pte_size; + u32 mmu_hop_table_size; + u32 mmu_hop0_tables_total_size; + u32 dram_page_size; + u32 cfg_size; + u32 sram_size; + u32 max_asid; + u32 num_of_events; + u32 psoc_pci_pll_nr; + u32 psoc_pci_pll_nf; + u32 psoc_pci_pll_od; + u32 psoc_pci_pll_div_factor; + u32 high_pll; + u32 cb_pool_cb_cnt; + u32 cb_pool_cb_size; + u8 completion_queues_count; + u8 tpc_enabled_mask; +}; + +/** + * struct hl_dma_fence - wrapper for fence object used by command submissions. + * @base_fence: kernel fence object. + * @lock: spinlock to protect fence. + * @hdev: habanalabs device structure. + * @cs_seq: command submission sequence number. + */ +struct hl_dma_fence { + struct dma_fence base_fence; + spinlock_t lock; + struct hl_device *hdev; + u64 cs_seq; +}; + +/* + * Command Buffers + */ + +#define HL_MAX_CB_SIZE 0x200000 /* 2MB */ + +/** + * struct hl_cb_mgr - describes a Command Buffer Manager. + * @cb_lock: protects cb_handles. + * @cb_handles: an idr to hold all command buffer handles. + */ +struct hl_cb_mgr { + spinlock_t cb_lock; + struct idr cb_handles; /* protected by cb_lock */ +}; + +/** + * struct hl_cb - describes a Command Buffer. + * @refcount: reference counter for usage of the CB. + * @hdev: pointer to device this CB belongs to. + * @lock: spinlock to protect mmap/cs flows. + * @debugfs_list: node in debugfs list of command buffers. + * @pool_list: node in pool list of command buffers. + * @kernel_address: Holds the CB's kernel virtual address. + * @bus_address: Holds the CB's DMA address. + * @mmap_size: Holds the CB's size that was mmaped. + * @size: holds the CB's size. + * @id: the CB's ID. + * @cs_cnt: holds number of CS that this CB participates in. + * @ctx_id: holds the ID of the owner's context. + * @mmap: true if the CB is currently mmaped to user. + * @is_pool: true if CB was acquired from the pool, false otherwise. + */ +struct hl_cb { + struct kref refcount; + struct hl_device *hdev; + spinlock_t lock; + struct list_head debugfs_list; + struct list_head pool_list; + u64 kernel_address; + dma_addr_t bus_address; + u32 mmap_size; + u32 size; + u32 id; + u32 cs_cnt; + u32 ctx_id; + u8 mmap; + u8 is_pool; +}; + + +/* + * QUEUES + */ + +struct hl_cs_job; + +/* + * Currently, there are two limitations on the maximum length of a queue: + * + * 1. The memory footprint of the queue. The current allocated space for the + * queue is PAGE_SIZE. Because each entry in the queue is HL_BD_SIZE, + * the maximum length of the queue can be PAGE_SIZE / HL_BD_SIZE, + * which currently is 4096/16 = 256 entries. + * + * To increase that, we need either to decrease the size of the + * BD (difficult), or allocate more than a single page (easier). + * + * 2. Because the size of the JOB handle field in the BD CTL / completion queue + * is 10-bit, we can have up to 1024 open jobs per hardware queue. + * Therefore, each queue can hold up to 1024 entries. + * + * HL_QUEUE_LENGTH is in units of struct hl_bd. + * HL_QUEUE_LENGTH * sizeof(struct hl_bd) should be <= HL_PAGE_SIZE + */ + +#define HL_PAGE_SIZE 4096 /* minimum page size */ +/* Must be power of 2 (HL_PAGE_SIZE / HL_BD_SIZE) */ +#define HL_QUEUE_LENGTH 256 +#define HL_QUEUE_SIZE_IN_BYTES (HL_QUEUE_LENGTH * HL_BD_SIZE) + +/* + * HL_CQ_LENGTH is in units of struct hl_cq_entry. + * HL_CQ_LENGTH should be <= HL_PAGE_SIZE + */ +#define HL_CQ_LENGTH HL_QUEUE_LENGTH +#define HL_CQ_SIZE_IN_BYTES (HL_CQ_LENGTH * HL_CQ_ENTRY_SIZE) + +/* Must be power of 2 (HL_PAGE_SIZE / HL_EQ_ENTRY_SIZE) */ +#define HL_EQ_LENGTH 64 +#define HL_EQ_SIZE_IN_BYTES (HL_EQ_LENGTH * HL_EQ_ENTRY_SIZE) + + +/** + * struct hl_hw_queue - describes a H/W transport queue. + * @shadow_queue: pointer to a shadow queue that holds pointers to jobs. + * @queue_type: type of queue. + * @kernel_address: holds the queue's kernel virtual address. + * @bus_address: holds the queue's DMA address. + * @pi: holds the queue's pi value. + * @ci: holds the queue's ci value, AS CALCULATED BY THE DRIVER (not real ci). + * @hw_queue_id: the id of the H/W queue. + * @int_queue_len: length of internal queue (number of entries). + * @valid: is the queue valid (we have array of 32 queues, not all of them + * exists). + */ +struct hl_hw_queue { + struct hl_cs_job **shadow_queue; + enum hl_queue_type queue_type; + u64 kernel_address; + dma_addr_t bus_address; + u32 pi; + u32 ci; + u32 hw_queue_id; + u16 int_queue_len; + u8 valid; +}; + +/** + * struct hl_cq - describes a completion queue + * @hdev: pointer to the device structure + * @kernel_address: holds the queue's kernel virtual address + * @bus_address: holds the queue's DMA address + * @hw_queue_id: the id of the matching H/W queue + * @ci: ci inside the queue + * @pi: pi inside the queue + * @free_slots_cnt: counter of free slots in queue + */ +struct hl_cq { + struct hl_device *hdev; + u64 kernel_address; + dma_addr_t bus_address; + u32 hw_queue_id; + u32 ci; + u32 pi; + atomic_t free_slots_cnt; +}; + +/** + * struct hl_eq - describes the event queue (single one per device) + * @hdev: pointer to the device structure + * @kernel_address: holds the queue's kernel virtual address + * @bus_address: holds the queue's DMA address + * @ci: ci inside the queue + */ +struct hl_eq { + struct hl_device *hdev; + u64 kernel_address; + dma_addr_t bus_address; + u32 ci; +}; + + +/* + * ASICs + */ + +/** + * enum hl_asic_type - supported ASIC types. + * @ASIC_AUTO_DETECT: ASIC type will be automatically set. + * @ASIC_GOYA: Goya device. + * @ASIC_INVALID: Invalid ASIC type. + */ +enum hl_asic_type { + ASIC_AUTO_DETECT, + ASIC_GOYA, + ASIC_INVALID +}; + +struct hl_cs_parser; + +/** + * enum hl_pm_mng_profile - power management profile. + * @PM_AUTO: internal clock is set by KMD. + * @PM_MANUAL: internal clock is set by the user. + * @PM_LAST: last power management type. + */ +enum hl_pm_mng_profile { + PM_AUTO = 1, + PM_MANUAL, + PM_LAST +}; + +/** + * enum hl_pll_frequency - PLL frequency. + * @PLL_HIGH: high frequency. + * @PLL_LOW: low frequency. + * @PLL_LAST: last frequency values that were configured by the user. + */ +enum hl_pll_frequency { + PLL_HIGH = 1, + PLL_LOW, + PLL_LAST +}; + +/** + * struct hl_asic_funcs - ASIC specific functions that are can be called from + * common code. + * @early_init: sets up early driver state (pre sw_init), doesn't configure H/W. + * @early_fini: tears down what was done in early_init. + * @late_init: sets up late driver/hw state (post hw_init) - Optional. + * @late_fini: tears down what was done in late_init (pre hw_fini) - Optional. + * @sw_init: sets up driver state, does not configure H/W. + * @sw_fini: tears down driver state, does not configure H/W. + * @hw_init: sets up the H/W state. + * @hw_fini: tears down the H/W state. + * @halt_engines: halt engines, needed for reset sequence. This also disables + * interrupts from the device. Should be called before + * hw_fini and before CS rollback. + * @suspend: handles IP specific H/W or SW changes for suspend. + * @resume: handles IP specific H/W or SW changes for resume. + * @cb_mmap: maps a CB. + * @ring_doorbell: increment PI on a given QMAN. + * @flush_pq_write: flush PQ entry write if necessary, WARN if flushing failed. + * @dma_alloc_coherent: Allocate coherent DMA memory by calling + * dma_alloc_coherent(). This is ASIC function because its + * implementation is not trivial when the driver is loaded + * in simulation mode (not upstreamed). + * @dma_free_coherent: Free coherent DMA memory by calling dma_free_coherent(). + * This is ASIC function because its implementation is not + * trivial when the driver is loaded in simulation mode + * (not upstreamed). + * @get_int_queue_base: get the internal queue base address. + * @test_queues: run simple test on all queues for sanity check. + * @dma_pool_zalloc: small DMA allocation of coherent memory from DMA pool. + * size of allocation is HL_DMA_POOL_BLK_SIZE. + * @dma_pool_free: free small DMA allocation from pool. + * @cpu_accessible_dma_pool_alloc: allocate CPU PQ packet from DMA pool. + * @cpu_accessible_dma_pool_free: free CPU PQ packet from DMA pool. + * @hl_dma_unmap_sg: DMA unmap scatter-gather list. + * @cs_parser: parse Command Submission. + * @asic_dma_map_sg: DMA map scatter-gather list. + * @get_dma_desc_list_size: get number of LIN_DMA packets required for CB. + * @add_end_of_cb_packets: Add packets to the end of CB, if device requires it. + * @update_eq_ci: update event queue CI. + * @context_switch: called upon ASID context switch. + * @restore_phase_topology: clear all SOBs amd MONs. + * @debugfs_read32: debug interface for reading u32 from DRAM/SRAM. + * @debugfs_write32: debug interface for writing u32 to DRAM/SRAM. + * @add_device_attr: add ASIC specific device attributes. + * @handle_eqe: handle event queue entry (IRQ) from ArmCP. + * @set_pll_profile: change PLL profile (manual/automatic). + * @get_events_stat: retrieve event queue entries histogram. + * @read_pte: read MMU page table entry from DRAM. + * @write_pte: write MMU page table entry to DRAM. + * @mmu_invalidate_cache: flush MMU STLB cache, either with soft (L1 only) or + * hard (L0 & L1) flush. + * @mmu_invalidate_cache_range: flush specific MMU STLB cache lines with + * ASID-VA-size mask. + * @send_heartbeat: send is-alive packet to ArmCP and verify response. + * @enable_clock_gating: enable clock gating for reducing power consumption. + * @disable_clock_gating: disable clock for accessing registers on HBW. + * @is_device_idle: return true if device is idle, false otherwise. + * @soft_reset_late_init: perform certain actions needed after soft reset. + * @hw_queues_lock: acquire H/W queues lock. + * @hw_queues_unlock: release H/W queues lock. + * @get_pci_id: retrieve PCI ID. + * @get_eeprom_data: retrieve EEPROM data from F/W. + * @send_cpu_message: send buffer to ArmCP. + * @get_hw_state: retrieve the H/W state + */ +struct hl_asic_funcs { + int (*early_init)(struct hl_device *hdev); + int (*early_fini)(struct hl_device *hdev); + int (*late_init)(struct hl_device *hdev); + void (*late_fini)(struct hl_device *hdev); + int (*sw_init)(struct hl_device *hdev); + int (*sw_fini)(struct hl_device *hdev); + int (*hw_init)(struct hl_device *hdev); + void (*hw_fini)(struct hl_device *hdev, bool hard_reset); + void (*halt_engines)(struct hl_device *hdev, bool hard_reset); + int (*suspend)(struct hl_device *hdev); + int (*resume)(struct hl_device *hdev); + int (*cb_mmap)(struct hl_device *hdev, struct vm_area_struct *vma, + u64 kaddress, phys_addr_t paddress, u32 size); + void (*ring_doorbell)(struct hl_device *hdev, u32 hw_queue_id, u32 pi); + void (*flush_pq_write)(struct hl_device *hdev, u64 *pq, u64 exp_val); + void* (*dma_alloc_coherent)(struct hl_device *hdev, size_t size, + dma_addr_t *dma_handle, gfp_t flag); + void (*dma_free_coherent)(struct hl_device *hdev, size_t size, + void *cpu_addr, dma_addr_t dma_handle); + void* (*get_int_queue_base)(struct hl_device *hdev, u32 queue_id, + dma_addr_t *dma_handle, u16 *queue_len); + int (*test_queues)(struct hl_device *hdev); + void* (*dma_pool_zalloc)(struct hl_device *hdev, size_t size, + gfp_t mem_flags, dma_addr_t *dma_handle); + void (*dma_pool_free)(struct hl_device *hdev, void *vaddr, + dma_addr_t dma_addr); + void* (*cpu_accessible_dma_pool_alloc)(struct hl_device *hdev, + size_t size, dma_addr_t *dma_handle); + void (*cpu_accessible_dma_pool_free)(struct hl_device *hdev, + size_t size, void *vaddr); + void (*hl_dma_unmap_sg)(struct hl_device *hdev, + struct scatterlist *sg, int nents, + enum dma_data_direction dir); + int (*cs_parser)(struct hl_device *hdev, struct hl_cs_parser *parser); + int (*asic_dma_map_sg)(struct hl_device *hdev, + struct scatterlist *sg, int nents, + enum dma_data_direction dir); + u32 (*get_dma_desc_list_size)(struct hl_device *hdev, + struct sg_table *sgt); + void (*add_end_of_cb_packets)(u64 kernel_address, u32 len, u64 cq_addr, + u32 cq_val, u32 msix_num); + void (*update_eq_ci)(struct hl_device *hdev, u32 val); + int (*context_switch)(struct hl_device *hdev, u32 asid); + void (*restore_phase_topology)(struct hl_device *hdev); + int (*debugfs_read32)(struct hl_device *hdev, u64 addr, u32 *val); + int (*debugfs_write32)(struct hl_device *hdev, u64 addr, u32 val); + void (*add_device_attr)(struct hl_device *hdev, + struct attribute_group *dev_attr_grp); + void (*handle_eqe)(struct hl_device *hdev, + struct hl_eq_entry *eq_entry); + void (*set_pll_profile)(struct hl_device *hdev, + enum hl_pll_frequency freq); + void* (*get_events_stat)(struct hl_device *hdev, u32 *size); + u64 (*read_pte)(struct hl_device *hdev, u64 addr); + void (*write_pte)(struct hl_device *hdev, u64 addr, u64 val); + void (*mmu_invalidate_cache)(struct hl_device *hdev, bool is_hard); + void (*mmu_invalidate_cache_range)(struct hl_device *hdev, bool is_hard, + u32 asid, u64 va, u64 size); + int (*send_heartbeat)(struct hl_device *hdev); + void (*enable_clock_gating)(struct hl_device *hdev); + void (*disable_clock_gating)(struct hl_device *hdev); + bool (*is_device_idle)(struct hl_device *hdev); + int (*soft_reset_late_init)(struct hl_device *hdev); + void (*hw_queues_lock)(struct hl_device *hdev); + void (*hw_queues_unlock)(struct hl_device *hdev); + u32 (*get_pci_id)(struct hl_device *hdev); + int (*get_eeprom_data)(struct hl_device *hdev, void *data, + size_t max_size); + int (*send_cpu_message)(struct hl_device *hdev, u32 *msg, + u16 len, u32 timeout, long *result); + enum hl_device_hw_state (*get_hw_state)(struct hl_device *hdev); +}; + + +/* + * CONTEXTS + */ + +#define HL_KERNEL_ASID_ID 0 + +/** + * struct hl_va_range - virtual addresses range. + * @lock: protects the virtual addresses list. + * @list: list of virtual addresses blocks available for mappings. + * @start_addr: range start address. + * @end_addr: range end address. + */ +struct hl_va_range { + struct mutex lock; + struct list_head list; + u64 start_addr; + u64 end_addr; +}; + +/** + * struct hl_ctx - user/kernel context. + * @mem_hash: holds mapping from virtual address to virtual memory area + * descriptor (hl_vm_phys_pg_list or hl_userptr). + * @mmu_hash: holds a mapping from virtual address to pgt_info structure. + * @hpriv: pointer to the private (KMD) data of the process (fd). + * @hdev: pointer to the device structure. + * @refcount: reference counter for the context. Context is released only when + * this hits 0l. It is incremented on CS and CS_WAIT. + * @cs_pending: array of DMA fence objects representing pending CS. + * @host_va_range: holds available virtual addresses for host mappings. + * @dram_va_range: holds available virtual addresses for DRAM mappings. + * @mem_hash_lock: protects the mem_hash. + * @mmu_lock: protects the MMU page tables. Any change to the PGT, modifing the + * MMU hash or walking the PGT requires talking this lock + * @debugfs_list: node in debugfs list of contexts. + * @cs_sequence: sequence number for CS. Value is assigned to a CS and passed + * to user so user could inquire about CS. It is used as + * index to cs_pending array. + * @dram_default_hops: array that holds all hops addresses needed for default + * DRAM mapping. + * @cs_lock: spinlock to protect cs_sequence. + * @dram_phys_mem: amount of used physical DRAM memory by this context. + * @thread_restore_token: token to prevent multiple threads of the same context + * from running the restore phase. Only one thread + * should run it. + * @thread_restore_wait_token: token to prevent the threads that didn't run + * the restore phase from moving to their execution + * phase before the restore phase has finished. + * @asid: context's unique address space ID in the device's MMU. + */ +struct hl_ctx { + DECLARE_HASHTABLE(mem_hash, MEM_HASH_TABLE_BITS); + DECLARE_HASHTABLE(mmu_hash, MMU_HASH_TABLE_BITS); + struct hl_fpriv *hpriv; + struct hl_device *hdev; + struct kref refcount; + struct dma_fence *cs_pending[HL_MAX_PENDING_CS]; + struct hl_va_range host_va_range; + struct hl_va_range dram_va_range; + struct mutex mem_hash_lock; + struct mutex mmu_lock; + struct list_head debugfs_list; + u64 cs_sequence; + u64 *dram_default_hops; + spinlock_t cs_lock; + atomic64_t dram_phys_mem; + atomic_t thread_restore_token; + u32 thread_restore_wait_token; + u32 asid; +}; + +/** + * struct hl_ctx_mgr - for handling multiple contexts. + * @ctx_lock: protects ctx_handles. + * @ctx_handles: idr to hold all ctx handles. + */ +struct hl_ctx_mgr { + struct mutex ctx_lock; + struct idr ctx_handles; +}; + + + +/* + * COMMAND SUBMISSIONS + */ + +/** + * struct hl_userptr - memory mapping chunk information + * @vm_type: type of the VM. + * @job_node: linked-list node for hanging the object on the Job's list. + * @vec: pointer to the frame vector. + * @sgt: pointer to the scatter-gather table that holds the pages. + * @dir: for DMA unmapping, the direction must be supplied, so save it. + * @debugfs_list: node in debugfs list of command submissions. + * @addr: user-space virtual pointer to the start of the memory area. + * @size: size of the memory area to pin & map. + * @dma_mapped: true if the SG was mapped to DMA addresses, false otherwise. + */ +struct hl_userptr { + enum vm_type_t vm_type; /* must be first */ + struct list_head job_node; + struct frame_vector *vec; + struct sg_table *sgt; + enum dma_data_direction dir; + struct list_head debugfs_list; + u64 addr; + u32 size; + u8 dma_mapped; +}; + +/** + * struct hl_cs - command submission. + * @jobs_in_queue_cnt: per each queue, maintain counter of submitted jobs. + * @ctx: the context this CS belongs to. + * @job_list: list of the CS's jobs in the various queues. + * @job_lock: spinlock for the CS's jobs list. Needed for free_job. + * @refcount: reference counter for usage of the CS. + * @fence: pointer to the fence object of this CS. + * @work_tdr: delayed work node for TDR. + * @mirror_node : node in device mirror list of command submissions. + * @debugfs_list: node in debugfs list of command submissions. + * @sequence: the sequence number of this CS. + * @submitted: true if CS was submitted to H/W. + * @completed: true if CS was completed by device. + * @timedout : true if CS was timedout. + * @tdr_active: true if TDR was activated for this CS (to prevent + * double TDR activation). + * @aborted: true if CS was aborted due to some device error. + */ +struct hl_cs { + u8 jobs_in_queue_cnt[HL_MAX_QUEUES]; + struct hl_ctx *ctx; + struct list_head job_list; + spinlock_t job_lock; + struct kref refcount; + struct dma_fence *fence; + struct delayed_work work_tdr; + struct list_head mirror_node; + struct list_head debugfs_list; + u64 sequence; + u8 submitted; + u8 completed; + u8 timedout; + u8 tdr_active; + u8 aborted; +}; + +/** + * struct hl_cs_job - command submission job. + * @cs_node: the node to hang on the CS jobs list. + * @cs: the CS this job belongs to. + * @user_cb: the CB we got from the user. + * @patched_cb: in case of patching, this is internal CB which is submitted on + * the queue instead of the CB we got from the IOCTL. + * @finish_work: workqueue object to run when job is completed. + * @userptr_list: linked-list of userptr mappings that belong to this job and + * wait for completion. + * @debugfs_list: node in debugfs list of command submission jobs. + * @id: the id of this job inside a CS. + * @hw_queue_id: the id of the H/W queue this job is submitted to. + * @user_cb_size: the actual size of the CB we got from the user. + * @job_cb_size: the actual size of the CB that we put on the queue. + * @ext_queue: whether the job is for external queue or internal queue. + */ +struct hl_cs_job { + struct list_head cs_node; + struct hl_cs *cs; + struct hl_cb *user_cb; + struct hl_cb *patched_cb; + struct work_struct finish_work; + struct list_head userptr_list; + struct list_head debugfs_list; + u32 id; + u32 hw_queue_id; + u32 user_cb_size; + u32 job_cb_size; + u8 ext_queue; +}; + +/** + * struct hl_cs_parser - command submission paerser properties. + * @user_cb: the CB we got from the user. + * @patched_cb: in case of patching, this is internal CB which is submitted on + * the queue instead of the CB we got from the IOCTL. + * @job_userptr_list: linked-list of userptr mappings that belong to the related + * job and wait for completion. + * @cs_sequence: the sequence number of the related CS. + * @ctx_id: the ID of the context the related CS belongs to. + * @hw_queue_id: the id of the H/W queue this job is submitted to. + * @user_cb_size: the actual size of the CB we got from the user. + * @patched_cb_size: the size of the CB after parsing. + * @ext_queue: whether the job is for external queue or internal queue. + * @job_id: the id of the related job inside the related CS. + * @use_virt_addr: whether to treat the addresses in the CB as virtual during + * parsing. + */ +struct hl_cs_parser { + struct hl_cb *user_cb; + struct hl_cb *patched_cb; + struct list_head *job_userptr_list; + u64 cs_sequence; + u32 ctx_id; + u32 hw_queue_id; + u32 user_cb_size; + u32 patched_cb_size; + u8 ext_queue; + u8 job_id; + u8 use_virt_addr; +}; + + +/* + * MEMORY STRUCTURE + */ + +/** + * struct hl_vm_hash_node - hash element from virtual address to virtual + * memory area descriptor (hl_vm_phys_pg_list or + * hl_userptr). + * @node: node to hang on the hash table in context object. + * @vaddr: key virtual address. + * @ptr: value pointer (hl_vm_phys_pg_list or hl_userptr). + */ +struct hl_vm_hash_node { + struct hlist_node node; + u64 vaddr; + void *ptr; +}; + +/** + * struct hl_vm_phys_pg_pack - physical page pack. + * @vm_type: describes the type of the virtual area descriptor. + * @pages: the physical page array. + * @mapping_cnt: number of shared mappings. + * @asid: the context related to this list. + * @npages: num physical pages in the pack. + * @page_size: size of each page in the pack. + * @total_size: total size of all the pages in this list. + * @flags: HL_MEM_* flags related to this list. + * @handle: the provided handle related to this list. + * @offset: offset from the first page. + * @contiguous: is contiguous physical memory. + * @created_from_userptr: is product of host virtual address. + */ +struct hl_vm_phys_pg_pack { + enum vm_type_t vm_type; /* must be first */ + u64 *pages; + atomic_t mapping_cnt; + u32 asid; + u32 npages; + u32 page_size; + u32 total_size; + u32 flags; + u32 handle; + u32 offset; + u8 contiguous; + u8 created_from_userptr; +}; + +/** + * struct hl_vm_va_block - virtual range block information. + * @node: node to hang on the virtual range list in context object. + * @start: virtual range start address. + * @end: virtual range end address. + * @size: virtual range size. + */ +struct hl_vm_va_block { + struct list_head node; + u64 start; + u64 end; + u64 size; +}; + +/** + * struct hl_vm - virtual memory manager for MMU. + * @dram_pg_pool: pool for DRAM physical pages of 2MB. + * @dram_pg_pool_refcount: reference counter for the pool usage. + * @idr_lock: protects the phys_pg_list_handles. + * @phys_pg_pack_handles: idr to hold all device allocations handles. + * @init_done: whether initialization was done. We need this because VM + * initialization might be skipped during device initialization. + */ +struct hl_vm { + struct gen_pool *dram_pg_pool; + struct kref dram_pg_pool_refcount; + spinlock_t idr_lock; + struct idr phys_pg_pack_handles; + u8 init_done; +}; + +/* + * FILE PRIVATE STRUCTURE + */ + +/** + * struct hl_fpriv - process information stored in FD private data. + * @hdev: habanalabs device structure. + * @filp: pointer to the given file structure. + * @taskpid: current process ID. + * @ctx: current executing context. + * @ctx_mgr: context manager to handle multiple context for this FD. + * @cb_mgr: command buffer manager to handle multiple buffers for this FD. + * @debugfs_list: list of relevant ASIC debugfs. + * @refcount: number of related contexts. + * @restore_phase_mutex: lock for context switch and restore phase. + */ +struct hl_fpriv { + struct hl_device *hdev; + struct file *filp; + struct pid *taskpid; + struct hl_ctx *ctx; /* TODO: remove for multiple ctx */ + struct hl_ctx_mgr ctx_mgr; + struct hl_cb_mgr cb_mgr; + struct list_head debugfs_list; + struct kref refcount; + struct mutex restore_phase_mutex; +}; + + +/* + * DebugFS + */ + +/** + * struct hl_info_list - debugfs file ops. + * @name: file name. + * @show: function to output information. + * @write: function to write to the file. + */ +struct hl_info_list { + const char *name; + int (*show)(struct seq_file *s, void *data); + ssize_t (*write)(struct file *file, const char __user *buf, + size_t count, loff_t *f_pos); +}; + +/** + * struct hl_debugfs_entry - debugfs dentry wrapper. + * @dent: base debugfs entry structure. + * @info_ent: dentry realted ops. + * @dev_entry: ASIC specific debugfs manager. + */ +struct hl_debugfs_entry { + struct dentry *dent; + const struct hl_info_list *info_ent; + struct hl_dbg_device_entry *dev_entry; +}; + +/** + * struct hl_dbg_device_entry - ASIC specific debugfs manager. + * @root: root dentry. + * @hdev: habanalabs device structure. + * @entry_arr: array of available hl_debugfs_entry. + * @file_list: list of available debugfs files. + * @file_mutex: protects file_list. + * @cb_list: list of available CBs. + * @cb_spinlock: protects cb_list. + * @cs_list: list of available CSs. + * @cs_spinlock: protects cs_list. + * @cs_job_list: list of available CB jobs. + * @cs_job_spinlock: protects cs_job_list. + * @userptr_list: list of available userptrs (virtual memory chunk descriptor). + * @userptr_spinlock: protects userptr_list. + * @ctx_mem_hash_list: list of available contexts with MMU mappings. + * @ctx_mem_hash_spinlock: protects cb_list. + * @addr: next address to read/write from/to in read/write32. + * @mmu_addr: next virtual address to translate to physical address in mmu_show. + * @mmu_asid: ASID to use while translating in mmu_show. + * @i2c_bus: generic u8 debugfs file for bus value to use in i2c_data_read. + * @i2c_bus: generic u8 debugfs file for address value to use in i2c_data_read. + * @i2c_bus: generic u8 debugfs file for register value to use in i2c_data_read. + */ +struct hl_dbg_device_entry { + struct dentry *root; + struct hl_device *hdev; + struct hl_debugfs_entry *entry_arr; + struct list_head file_list; + struct mutex file_mutex; + struct list_head cb_list; + spinlock_t cb_spinlock; + struct list_head cs_list; + spinlock_t cs_spinlock; + struct list_head cs_job_list; + spinlock_t cs_job_spinlock; + struct list_head userptr_list; + spinlock_t userptr_spinlock; + struct list_head ctx_mem_hash_list; + spinlock_t ctx_mem_hash_spinlock; + u64 addr; + u64 mmu_addr; + u32 mmu_asid; + u8 i2c_bus; + u8 i2c_addr; + u8 i2c_reg; +}; + + +/* + * DEVICES + */ + +/* Theoretical limit only. A single host can only contain up to 4 or 8 PCIe + * x16 cards. In extereme cases, there are hosts that can accommodate 16 cards + */ +#define HL_MAX_MINORS 256 + +/* + * Registers read & write functions. + */ + +u32 hl_rreg(struct hl_device *hdev, u32 reg); +void hl_wreg(struct hl_device *hdev, u32 reg, u32 val); + +#define hl_poll_timeout(hdev, addr, val, cond, sleep_us, timeout_us) \ + readl_poll_timeout(hdev->rmmio + addr, val, cond, sleep_us, timeout_us) + +#define RREG32(reg) hl_rreg(hdev, (reg)) +#define WREG32(reg, v) hl_wreg(hdev, (reg), (v)) +#define DREG32(reg) pr_info("REGISTER: " #reg " : 0x%08X\n", \ + hl_rreg(hdev, (reg))) + +#define WREG32_P(reg, val, mask) \ + do { \ + u32 tmp_ = RREG32(reg); \ + tmp_ &= (mask); \ + tmp_ |= ((val) & ~(mask)); \ + WREG32(reg, tmp_); \ + } while (0) +#define WREG32_AND(reg, and) WREG32_P(reg, 0, and) +#define WREG32_OR(reg, or) WREG32_P(reg, or, ~(or)) + +#define REG_FIELD_SHIFT(reg, field) reg##_##field##_SHIFT +#define REG_FIELD_MASK(reg, field) reg##_##field##_MASK +#define WREG32_FIELD(reg, field, val) \ + WREG32(mm##reg, (RREG32(mm##reg) & ~REG_FIELD_MASK(reg, field)) | \ + (val) << REG_FIELD_SHIFT(reg, field)) + +struct hwmon_chip_info; + +/** + * struct hl_device_reset_work - reset workqueue task wrapper. + * @reset_work: reset work to be done. + * @hdev: habanalabs device structure. + */ +struct hl_device_reset_work { + struct work_struct reset_work; + struct hl_device *hdev; +}; + +/** + * struct hl_device - habanalabs device structure. + * @pdev: pointer to PCI device, can be NULL in case of simulator device. + * @pcie_bar: array of available PCIe bars. + * @rmmio: configuration area address on SRAM. + * @cdev: related char device. + * @dev: realted kernel basic device structure. + * @work_freq: delayed work to lower device frequency if possible. + * @work_heartbeat: delayed work for ArmCP is-alive check. + * @asic_name: ASIC specific nmae. + * @asic_type: ASIC specific type. + * @completion_queue: array of hl_cq. + * @cq_wq: work queue of completion queues for executing work in process context + * @eq_wq: work queue of event queue for executing work in process context. + * @kernel_ctx: KMD context structure. + * @kernel_queues: array of hl_hw_queue. + * @hw_queues_mirror_list: CS mirror list for TDR. + * @hw_queues_mirror_lock: protects hw_queues_mirror_list. + * @kernel_cb_mgr: command buffer manager for creating/destroying/handling CGs. + * @event_queue: event queue for IRQ from ArmCP. + * @dma_pool: DMA pool for small allocations. + * @cpu_accessible_dma_mem: KMD <-> ArmCP shared memory CPU address. + * @cpu_accessible_dma_address: KMD <-> ArmCP shared memory DMA address. + * @cpu_accessible_dma_pool: KMD <-> ArmCP shared memory pool. + * @asid_bitmap: holds used/available ASIDs. + * @asid_mutex: protects asid_bitmap. + * @fd_open_cnt_lock: lock for updating fd_open_cnt in hl_device_open. Although + * fd_open_cnt is atomic, we need this lock to serialize + * the open function because the driver currently supports + * only a single process at a time. In addition, we need a + * lock here so we can flush user processes which are opening + * the device while we are trying to hard reset it + * @send_cpu_message_lock: enforces only one message in KMD <-> ArmCP queue. + * @asic_prop: ASIC specific immutable properties. + * @asic_funcs: ASIC specific functions. + * @asic_specific: ASIC specific information to use only from ASIC files. + * @mmu_pgt_pool: pool of available MMU hops. + * @vm: virtual memory manager for MMU. + * @mmu_cache_lock: protects MMU cache invalidation as it can serve one context + * @hwmon_dev: H/W monitor device. + * @pm_mng_profile: current power management profile. + * @hl_chip_info: ASIC's sensors information. + * @hl_debugfs: device's debugfs manager. + * @cb_pool: list of preallocated CBs. + * @cb_pool_lock: protects the CB pool. + * @user_ctx: current user context executing. + * @dram_used_mem: current DRAM memory consumption. + * @in_reset: is device in reset flow. + * @curr_pll_profile: current PLL profile. + * @fd_open_cnt: number of open user processes. + * @timeout_jiffies: device CS timeout value. + * @max_power: the max power of the device, as configured by the sysadmin. This + * value is saved so in case of hard-reset, KMD will restore this + * value and update the F/W after the re-initialization + * @major: habanalabs KMD major. + * @high_pll: high PLL profile frequency. + * @soft_reset_cnt: number of soft reset since KMD loading. + * @hard_reset_cnt: number of hard reset since KMD loading. + * @id: device minor. + * @disabled: is device disabled. + * @late_init_done: is late init stage was done during initialization. + * @hwmon_initialized: is H/W monitor sensors was initialized. + * @hard_reset_pending: is there a hard reset work pending. + * @heartbeat: is heartbeat sanity check towards ArmCP enabled. + * @reset_on_lockup: true if a reset should be done in case of stuck CS, false + * otherwise. + * @dram_supports_virtual_memory: is MMU enabled towards DRAM. + * @dram_default_page_mapping: is DRAM default page mapping enabled. + * @init_done: is the initialization of the device done. + * @mmu_enable: is MMU enabled. + * @device_cpu_disabled: is the device CPU disabled (due to timeouts) + */ +struct hl_device { + struct pci_dev *pdev; + void __iomem *pcie_bar[6]; + void __iomem *rmmio; + struct cdev cdev; + struct device *dev; + struct delayed_work work_freq; + struct delayed_work work_heartbeat; + char asic_name[16]; + enum hl_asic_type asic_type; + struct hl_cq *completion_queue; + struct workqueue_struct *cq_wq; + struct workqueue_struct *eq_wq; + struct hl_ctx *kernel_ctx; + struct hl_hw_queue *kernel_queues; + struct list_head hw_queues_mirror_list; + spinlock_t hw_queues_mirror_lock; + struct hl_cb_mgr kernel_cb_mgr; + struct hl_eq event_queue; + struct dma_pool *dma_pool; + void *cpu_accessible_dma_mem; + dma_addr_t cpu_accessible_dma_address; + struct gen_pool *cpu_accessible_dma_pool; + unsigned long *asid_bitmap; + struct mutex asid_mutex; + /* TODO: remove fd_open_cnt_lock for multiple process support */ + struct mutex fd_open_cnt_lock; + struct mutex send_cpu_message_lock; + struct asic_fixed_properties asic_prop; + const struct hl_asic_funcs *asic_funcs; + void *asic_specific; + struct gen_pool *mmu_pgt_pool; + struct hl_vm vm; + struct mutex mmu_cache_lock; + struct device *hwmon_dev; + enum hl_pm_mng_profile pm_mng_profile; + struct hwmon_chip_info *hl_chip_info; + + struct hl_dbg_device_entry hl_debugfs; + + struct list_head cb_pool; + spinlock_t cb_pool_lock; + + /* TODO: remove user_ctx for multiple process support */ + struct hl_ctx *user_ctx; + + atomic64_t dram_used_mem; + atomic_t in_reset; + atomic_t curr_pll_profile; + atomic_t fd_open_cnt; + u64 timeout_jiffies; + u64 max_power; + u32 major; + u32 high_pll; + u32 soft_reset_cnt; + u32 hard_reset_cnt; + u16 id; + u8 disabled; + u8 late_init_done; + u8 hwmon_initialized; + u8 hard_reset_pending; + u8 heartbeat; + u8 reset_on_lockup; + u8 dram_supports_virtual_memory; + u8 dram_default_page_mapping; + u8 init_done; + u8 device_cpu_disabled; + + /* Parameters for bring-up */ + u8 mmu_enable; + u8 cpu_enable; + u8 reset_pcilink; + u8 cpu_queues_enable; + u8 fw_loading; + u8 pldm; +}; + + +/* + * IOCTLs + */ + +/** + * typedef hl_ioctl_t - typedef for ioctl function in the driver + * @hpriv: pointer to the FD's private data, which contains state of + * user process + * @data: pointer to the input/output arguments structure of the IOCTL + * + * Return: 0 for success, negative value for error + */ +typedef int hl_ioctl_t(struct hl_fpriv *hpriv, void *data); + +/** + * struct hl_ioctl_desc - describes an IOCTL entry of the driver. + * @cmd: the IOCTL code as created by the kernel macros. + * @func: pointer to the driver's function that should be called for this IOCTL. + */ +struct hl_ioctl_desc { + unsigned int cmd; + hl_ioctl_t *func; +}; + + +/* + * Kernel module functions that can be accessed by entire module + */ + +/** + * hl_mem_area_inside_range() - Checks whether address+size are inside a range. + * @address: The start address of the area we want to validate. + * @size: The size in bytes of the area we want to validate. + * @range_start_address: The start address of the valid range. + * @range_end_address: The end address of the valid range. + * + * Return: true if the area is inside the valid range, false otherwise. + */ +static inline bool hl_mem_area_inside_range(u64 address, u32 size, + u64 range_start_address, u64 range_end_address) +{ + u64 end_address = address + size; + + if ((address >= range_start_address) && + (end_address <= range_end_address) && + (end_address > address)) + return true; + + return false; +} + +/** + * hl_mem_area_crosses_range() - Checks whether address+size crossing a range. + * @address: The start address of the area we want to validate. + * @size: The size in bytes of the area we want to validate. + * @range_start_address: The start address of the valid range. + * @range_end_address: The end address of the valid range. + * + * Return: true if the area overlaps part or all of the valid range, + * false otherwise. + */ +static inline bool hl_mem_area_crosses_range(u64 address, u32 size, + u64 range_start_address, u64 range_end_address) +{ + u64 end_address = address + size; + + if ((address >= range_start_address) && + (address < range_end_address)) + return true; + + if ((end_address >= range_start_address) && + (end_address < range_end_address)) + return true; + + if ((address < range_start_address) && + (end_address >= range_end_address)) + return true; + + return false; +} + +int hl_device_open(struct inode *inode, struct file *filp); +bool hl_device_disabled_or_in_reset(struct hl_device *hdev); +int create_hdev(struct hl_device **dev, struct pci_dev *pdev, + enum hl_asic_type asic_type, int minor); +void destroy_hdev(struct hl_device *hdev); +int hl_poll_timeout_memory(struct hl_device *hdev, u64 addr, u32 timeout_us, + u32 *val); +int hl_poll_timeout_device_memory(struct hl_device *hdev, void __iomem *addr, + u32 timeout_us, u32 *val); +int hl_hw_queues_create(struct hl_device *hdev); +void hl_hw_queues_destroy(struct hl_device *hdev); +int hl_hw_queue_send_cb_no_cmpl(struct hl_device *hdev, u32 hw_queue_id, + u32 cb_size, u64 cb_ptr); +int hl_hw_queue_schedule_cs(struct hl_cs *cs); +u32 hl_hw_queue_add_ptr(u32 ptr, u16 val); +void hl_hw_queue_inc_ci_kernel(struct hl_device *hdev, u32 hw_queue_id); +void hl_int_hw_queue_update_ci(struct hl_cs *cs); +void hl_hw_queue_reset(struct hl_device *hdev, bool hard_reset); + +#define hl_queue_inc_ptr(p) hl_hw_queue_add_ptr(p, 1) +#define hl_pi_2_offset(pi) ((pi) & (HL_QUEUE_LENGTH - 1)) + +int hl_cq_init(struct hl_device *hdev, struct hl_cq *q, u32 hw_queue_id); +void hl_cq_fini(struct hl_device *hdev, struct hl_cq *q); +int hl_eq_init(struct hl_device *hdev, struct hl_eq *q); +void hl_eq_fini(struct hl_device *hdev, struct hl_eq *q); +void hl_cq_reset(struct hl_device *hdev, struct hl_cq *q); +void hl_eq_reset(struct hl_device *hdev, struct hl_eq *q); +irqreturn_t hl_irq_handler_cq(int irq, void *arg); +irqreturn_t hl_irq_handler_eq(int irq, void *arg); +u32 hl_cq_inc_ptr(u32 ptr); + +int hl_asid_init(struct hl_device *hdev); +void hl_asid_fini(struct hl_device *hdev); +unsigned long hl_asid_alloc(struct hl_device *hdev); +void hl_asid_free(struct hl_device *hdev, unsigned long asid); + +int hl_ctx_create(struct hl_device *hdev, struct hl_fpriv *hpriv); +void hl_ctx_free(struct hl_device *hdev, struct hl_ctx *ctx); +int hl_ctx_init(struct hl_device *hdev, struct hl_ctx *ctx, bool is_kernel_ctx); +void hl_ctx_do_release(struct kref *ref); +void hl_ctx_get(struct hl_device *hdev, struct hl_ctx *ctx); +int hl_ctx_put(struct hl_ctx *ctx); +struct dma_fence *hl_ctx_get_fence(struct hl_ctx *ctx, u64 seq); +void hl_ctx_mgr_init(struct hl_ctx_mgr *mgr); +void hl_ctx_mgr_fini(struct hl_device *hdev, struct hl_ctx_mgr *mgr); + +int hl_device_init(struct hl_device *hdev, struct class *hclass); +void hl_device_fini(struct hl_device *hdev); +int hl_device_suspend(struct hl_device *hdev); +int hl_device_resume(struct hl_device *hdev); +int hl_device_reset(struct hl_device *hdev, bool hard_reset, + bool from_hard_reset_thread); +void hl_hpriv_get(struct hl_fpriv *hpriv); +void hl_hpriv_put(struct hl_fpriv *hpriv); +int hl_device_set_frequency(struct hl_device *hdev, enum hl_pll_frequency freq); + +int hl_build_hwmon_channel_info(struct hl_device *hdev, + struct armcp_sensor *sensors_arr); + +int hl_sysfs_init(struct hl_device *hdev); +void hl_sysfs_fini(struct hl_device *hdev); + +int hl_hwmon_init(struct hl_device *hdev); +void hl_hwmon_fini(struct hl_device *hdev); + +int hl_cb_create(struct hl_device *hdev, struct hl_cb_mgr *mgr, u32 cb_size, + u64 *handle, int ctx_id); +int hl_cb_destroy(struct hl_device *hdev, struct hl_cb_mgr *mgr, u64 cb_handle); +int hl_cb_mmap(struct hl_fpriv *hpriv, struct vm_area_struct *vma); +struct hl_cb *hl_cb_get(struct hl_device *hdev, struct hl_cb_mgr *mgr, + u32 handle); +void hl_cb_put(struct hl_cb *cb); +void hl_cb_mgr_init(struct hl_cb_mgr *mgr); +void hl_cb_mgr_fini(struct hl_device *hdev, struct hl_cb_mgr *mgr); +struct hl_cb *hl_cb_kernel_create(struct hl_device *hdev, u32 cb_size); +int hl_cb_pool_init(struct hl_device *hdev); +int hl_cb_pool_fini(struct hl_device *hdev); + +void hl_cs_rollback_all(struct hl_device *hdev); +struct hl_cs_job *hl_cs_allocate_job(struct hl_device *hdev, bool ext_queue); + +void goya_set_asic_funcs(struct hl_device *hdev); + +int hl_vm_ctx_init(struct hl_ctx *ctx); +void hl_vm_ctx_fini(struct hl_ctx *ctx); + +int hl_vm_init(struct hl_device *hdev); +void hl_vm_fini(struct hl_device *hdev); + +int hl_pin_host_memory(struct hl_device *hdev, u64 addr, u64 size, + struct hl_userptr *userptr); +int hl_unpin_host_memory(struct hl_device *hdev, struct hl_userptr *userptr); +void hl_userptr_delete_list(struct hl_device *hdev, + struct list_head *userptr_list); +bool hl_userptr_is_pinned(struct hl_device *hdev, u64 addr, u32 size, + struct list_head *userptr_list, + struct hl_userptr **userptr); + +int hl_mmu_init(struct hl_device *hdev); +void hl_mmu_fini(struct hl_device *hdev); +int hl_mmu_ctx_init(struct hl_ctx *ctx); +void hl_mmu_ctx_fini(struct hl_ctx *ctx); +int hl_mmu_map(struct hl_ctx *ctx, u64 virt_addr, u64 phys_addr, u32 page_size); +int hl_mmu_unmap(struct hl_ctx *ctx, u64 virt_addr, u32 page_size); +void hl_mmu_swap_out(struct hl_ctx *ctx); +void hl_mmu_swap_in(struct hl_ctx *ctx); + +long hl_get_frequency(struct hl_device *hdev, u32 pll_index, bool curr); +void hl_set_frequency(struct hl_device *hdev, u32 pll_index, u64 freq); +long hl_get_temperature(struct hl_device *hdev, int sensor_index, u32 attr); +long hl_get_voltage(struct hl_device *hdev, int sensor_index, u32 attr); +long hl_get_current(struct hl_device *hdev, int sensor_index, u32 attr); +long hl_get_fan_speed(struct hl_device *hdev, int sensor_index, u32 attr); +long hl_get_pwm_info(struct hl_device *hdev, int sensor_index, u32 attr); +void hl_set_pwm_info(struct hl_device *hdev, int sensor_index, u32 attr, + long value); +u64 hl_get_max_power(struct hl_device *hdev); +void hl_set_max_power(struct hl_device *hdev, u64 value); + +#ifdef CONFIG_DEBUG_FS + +void hl_debugfs_init(void); +void hl_debugfs_fini(void); +void hl_debugfs_add_device(struct hl_device *hdev); +void hl_debugfs_remove_device(struct hl_device *hdev); +void hl_debugfs_add_file(struct hl_fpriv *hpriv); +void hl_debugfs_remove_file(struct hl_fpriv *hpriv); +void hl_debugfs_add_cb(struct hl_cb *cb); +void hl_debugfs_remove_cb(struct hl_cb *cb); +void hl_debugfs_add_cs(struct hl_cs *cs); +void hl_debugfs_remove_cs(struct hl_cs *cs); +void hl_debugfs_add_job(struct hl_device *hdev, struct hl_cs_job *job); +void hl_debugfs_remove_job(struct hl_device *hdev, struct hl_cs_job *job); +void hl_debugfs_add_userptr(struct hl_device *hdev, struct hl_userptr *userptr); +void hl_debugfs_remove_userptr(struct hl_device *hdev, + struct hl_userptr *userptr); +void hl_debugfs_add_ctx_mem_hash(struct hl_device *hdev, struct hl_ctx *ctx); +void hl_debugfs_remove_ctx_mem_hash(struct hl_device *hdev, struct hl_ctx *ctx); + +#else + +static inline void __init hl_debugfs_init(void) +{ +} + +static inline void hl_debugfs_fini(void) +{ +} + +static inline void hl_debugfs_add_device(struct hl_device *hdev) +{ +} + +static inline void hl_debugfs_remove_device(struct hl_device *hdev) +{ +} + +static inline void hl_debugfs_add_file(struct hl_fpriv *hpriv) +{ +} + +static inline void hl_debugfs_remove_file(struct hl_fpriv *hpriv) +{ +} + +static inline void hl_debugfs_add_cb(struct hl_cb *cb) +{ +} + +static inline void hl_debugfs_remove_cb(struct hl_cb *cb) +{ +} + +static inline void hl_debugfs_add_cs(struct hl_cs *cs) +{ +} + +static inline void hl_debugfs_remove_cs(struct hl_cs *cs) +{ +} + +static inline void hl_debugfs_add_job(struct hl_device *hdev, + struct hl_cs_job *job) +{ +} + +static inline void hl_debugfs_remove_job(struct hl_device *hdev, + struct hl_cs_job *job) +{ +} + +static inline void hl_debugfs_add_userptr(struct hl_device *hdev, + struct hl_userptr *userptr) +{ +} + +static inline void hl_debugfs_remove_userptr(struct hl_device *hdev, + struct hl_userptr *userptr) +{ +} + +static inline void hl_debugfs_add_ctx_mem_hash(struct hl_device *hdev, + struct hl_ctx *ctx) +{ +} + +static inline void hl_debugfs_remove_ctx_mem_hash(struct hl_device *hdev, + struct hl_ctx *ctx) +{ +} + +#endif + +/* IOCTLs */ +long hl_ioctl(struct file *filep, unsigned int cmd, unsigned long arg); +int hl_cb_ioctl(struct hl_fpriv *hpriv, void *data); +int hl_cs_ioctl(struct hl_fpriv *hpriv, void *data); +int hl_cs_wait_ioctl(struct hl_fpriv *hpriv, void *data); +int hl_mem_ioctl(struct hl_fpriv *hpriv, void *data); + +#endif /* HABANALABSP_H_ */ |