diff options
Diffstat (limited to 'drivers/misc/habanalabs/habanalabs.h')
| -rw-r--r-- | drivers/misc/habanalabs/habanalabs.h | 40 |
1 files changed, 38 insertions, 2 deletions
diff --git a/drivers/misc/habanalabs/habanalabs.h b/drivers/misc/habanalabs/habanalabs.h index 2121babbebdc..b3731b2bab17 100644 --- a/drivers/misc/habanalabs/habanalabs.h +++ b/drivers/misc/habanalabs/habanalabs.h @@ -15,6 +15,7 @@ #include <linux/cdev.h> #include <linux/iopoll.h> +#include <linux/irqreturn.h> #define HL_NAME "habanalabs" @@ -80,6 +81,7 @@ struct hw_queue_properties { * @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. * @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. @@ -106,6 +108,7 @@ struct asic_fixed_properties { u32 cfg_size; u32 sram_size; u32 max_asid; + u32 num_of_events; u32 high_pll; u32 cb_pool_cb_cnt; u32 cb_pool_cb_size; @@ -198,6 +201,9 @@ struct hl_cs_job; #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) /** @@ -245,6 +251,20 @@ struct hl_cq { 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 @@ -271,6 +291,9 @@ enum hl_asic_type { * @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. * @mmap: mmap function, does nothing. @@ -292,6 +315,9 @@ enum hl_asic_type { * @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. + * @update_eq_ci: update event queue CI. + * @handle_eqe: handle event queue entry (IRQ) from ArmCP. + * @get_events_stat: retrieve event queue entries histogram. * @hw_queues_lock: acquire H/W queues lock. * @hw_queues_unlock: release H/W queues lock. * @send_cpu_message: send buffer to ArmCP. @@ -303,6 +329,7 @@ struct hl_asic_funcs { 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 (*mmap)(struct hl_fpriv *hpriv, struct vm_area_struct *vma); @@ -325,6 +352,10 @@ struct hl_asic_funcs { size_t size, dma_addr_t *dma_handle); void (*cpu_accessible_dma_pool_free)(struct hl_device *hdev, size_t size, void *vaddr); + void (*update_eq_ci)(struct hl_device *hdev, u32 val); + void (*handle_eqe)(struct hl_device *hdev, + struct hl_eq_entry *eq_entry); + void* (*get_events_stat)(struct hl_device *hdev, u32 *size); void (*hw_queues_lock)(struct hl_device *hdev); void (*hw_queues_unlock)(struct hl_device *hdev); int (*send_cpu_message)(struct hl_device *hdev, u32 *msg, @@ -364,8 +395,6 @@ struct hl_ctx_mgr { }; - - /** * struct hl_cs_job - command submission job. * @finish_work: workqueue object to run when job is completed. @@ -455,6 +484,7 @@ void hl_wreg(struct hl_device *hdev, u32 reg, u32 val); * @kernel_ctx: KMD context structure. * @kernel_queues: array of hl_hw_queue. * @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. @@ -489,9 +519,11 @@ struct hl_device { 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 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; @@ -573,6 +605,10 @@ void hl_hw_queue_inc_ci_kernel(struct hl_device *hdev, u32 hw_queue_id); 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); +irqreturn_t hl_irq_handler_cq(int irq, void *arg); +irqreturn_t hl_irq_handler_eq(int irq, void *arg); 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); |