14a488a7aSOded Gabbay /* 24a488a7aSOded Gabbay * Copyright 2014 Advanced Micro Devices, Inc. 34a488a7aSOded Gabbay * 44a488a7aSOded Gabbay * Permission is hereby granted, free of charge, to any person obtaining a 54a488a7aSOded Gabbay * copy of this software and associated documentation files (the "Software"), 64a488a7aSOded Gabbay * to deal in the Software without restriction, including without limitation 74a488a7aSOded Gabbay * the rights to use, copy, modify, merge, publish, distribute, sublicense, 84a488a7aSOded Gabbay * and/or sell copies of the Software, and to permit persons to whom the 94a488a7aSOded Gabbay * Software is furnished to do so, subject to the following conditions: 104a488a7aSOded Gabbay * 114a488a7aSOded Gabbay * The above copyright notice and this permission notice shall be included in 124a488a7aSOded Gabbay * all copies or substantial portions of the Software. 134a488a7aSOded Gabbay * 144a488a7aSOded Gabbay * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 154a488a7aSOded Gabbay * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 164a488a7aSOded Gabbay * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 174a488a7aSOded Gabbay * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 184a488a7aSOded Gabbay * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 194a488a7aSOded Gabbay * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 204a488a7aSOded Gabbay * OTHER DEALINGS IN THE SOFTWARE. 214a488a7aSOded Gabbay */ 224a488a7aSOded Gabbay 234a488a7aSOded Gabbay #ifndef KFD_PRIV_H_INCLUDED 244a488a7aSOded Gabbay #define KFD_PRIV_H_INCLUDED 254a488a7aSOded Gabbay 264a488a7aSOded Gabbay #include <linux/hashtable.h> 274a488a7aSOded Gabbay #include <linux/mmu_notifier.h> 284a488a7aSOded Gabbay #include <linux/mutex.h> 294a488a7aSOded Gabbay #include <linux/types.h> 304a488a7aSOded Gabbay #include <linux/atomic.h> 314a488a7aSOded Gabbay #include <linux/workqueue.h> 324a488a7aSOded Gabbay #include <linux/spinlock.h> 3319f6d2a6SOded Gabbay #include <linux/kfd_ioctl.h> 344a488a7aSOded Gabbay #include <kgd_kfd_interface.h> 354a488a7aSOded Gabbay 365b5c4e40SEvgeny Pinchuk #define KFD_SYSFS_FILE_MODE 0444 375b5c4e40SEvgeny Pinchuk 38ed6e6a34SBen Goz /* 39ed6e6a34SBen Goz * When working with cp scheduler we should assign the HIQ manually or via 40ed6e6a34SBen Goz * the radeon driver to a fixed hqd slot, here are the fixed HIQ hqd slot 41ed6e6a34SBen Goz * definitions for Kaveri. In Kaveri only the first ME queues participates 42ed6e6a34SBen Goz * in the cp scheduling taking that in mind we set the HIQ slot in the 43ed6e6a34SBen Goz * second ME. 44ed6e6a34SBen Goz */ 45ed6e6a34SBen Goz #define KFD_CIK_HIQ_PIPE 4 46ed6e6a34SBen Goz #define KFD_CIK_HIQ_QUEUE 0 47ed6e6a34SBen Goz 485b5c4e40SEvgeny Pinchuk /* GPU ID hash width in bits */ 495b5c4e40SEvgeny Pinchuk #define KFD_GPU_ID_HASH_WIDTH 16 505b5c4e40SEvgeny Pinchuk 515b5c4e40SEvgeny Pinchuk /* Macro for allocating structures */ 525b5c4e40SEvgeny Pinchuk #define kfd_alloc_struct(ptr_to_struct) \ 535b5c4e40SEvgeny Pinchuk ((typeof(ptr_to_struct)) kzalloc(sizeof(*ptr_to_struct), GFP_KERNEL)) 545b5c4e40SEvgeny Pinchuk 5519f6d2a6SOded Gabbay /* Kernel module parameter to specify maximum number of supported processes */ 5619f6d2a6SOded Gabbay extern int max_num_of_processes; 5719f6d2a6SOded Gabbay 5819f6d2a6SOded Gabbay #define KFD_MAX_NUM_OF_PROCESSES_DEFAULT 32 5919f6d2a6SOded Gabbay #define KFD_MAX_NUM_OF_PROCESSES 512 6019f6d2a6SOded Gabbay 6119f6d2a6SOded Gabbay /* 6219f6d2a6SOded Gabbay * Kernel module parameter to specify maximum number of supported queues 6319f6d2a6SOded Gabbay * per process 6419f6d2a6SOded Gabbay */ 6519f6d2a6SOded Gabbay extern int max_num_of_queues_per_process; 6619f6d2a6SOded Gabbay 6719f6d2a6SOded Gabbay #define KFD_MAX_NUM_OF_QUEUES_PER_PROCESS_DEFAULT 128 6819f6d2a6SOded Gabbay #define KFD_MAX_NUM_OF_QUEUES_PER_PROCESS 1024 6919f6d2a6SOded Gabbay 70ed6e6a34SBen Goz #define KFD_KERNEL_QUEUE_SIZE 2048 71ed6e6a34SBen Goz 7231c21fecSBen Goz /* Kernel module parameter to specify the scheduling policy */ 7331c21fecSBen Goz extern int sched_policy; 7431c21fecSBen Goz 7531c21fecSBen Goz /** 7631c21fecSBen Goz * enum kfd_sched_policy 7731c21fecSBen Goz * 7831c21fecSBen Goz * @KFD_SCHED_POLICY_HWS: H/W scheduling policy known as command processor (cp) 7931c21fecSBen Goz * scheduling. In this scheduling mode we're using the firmware code to 8031c21fecSBen Goz * schedule the user mode queues and kernel queues such as HIQ and DIQ. 8131c21fecSBen Goz * the HIQ queue is used as a special queue that dispatches the configuration 8231c21fecSBen Goz * to the cp and the user mode queues list that are currently running. 8331c21fecSBen Goz * the DIQ queue is a debugging queue that dispatches debugging commands to the 8431c21fecSBen Goz * firmware. 8531c21fecSBen Goz * in this scheduling mode user mode queues over subscription feature is 8631c21fecSBen Goz * enabled. 8731c21fecSBen Goz * 8831c21fecSBen Goz * @KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION: The same as above but the over 8931c21fecSBen Goz * subscription feature disabled. 9031c21fecSBen Goz * 9131c21fecSBen Goz * @KFD_SCHED_POLICY_NO_HWS: no H/W scheduling policy is a mode which directly 9231c21fecSBen Goz * set the command processor registers and sets the queues "manually". This 9331c21fecSBen Goz * mode is used *ONLY* for debugging proposes. 9431c21fecSBen Goz * 9531c21fecSBen Goz */ 9631c21fecSBen Goz enum kfd_sched_policy { 9731c21fecSBen Goz KFD_SCHED_POLICY_HWS = 0, 9831c21fecSBen Goz KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION, 9931c21fecSBen Goz KFD_SCHED_POLICY_NO_HWS 10031c21fecSBen Goz }; 10131c21fecSBen Goz 102ed6e6a34SBen Goz enum cache_policy { 103ed6e6a34SBen Goz cache_policy_coherent, 104ed6e6a34SBen Goz cache_policy_noncoherent 105ed6e6a34SBen Goz }; 106ed6e6a34SBen Goz 1074a488a7aSOded Gabbay struct kfd_device_info { 1084a488a7aSOded Gabbay unsigned int max_pasid_bits; 1094a488a7aSOded Gabbay size_t ih_ring_entry_size; 110f7c826adSAlexey Skidanov uint8_t num_of_watch_points; 11119f6d2a6SOded Gabbay uint16_t mqd_size_aligned; 1124a488a7aSOded Gabbay }; 1134a488a7aSOded Gabbay 11436b5c08fSOded Gabbay struct kfd_mem_obj { 11536b5c08fSOded Gabbay uint32_t range_start; 11636b5c08fSOded Gabbay uint32_t range_end; 11736b5c08fSOded Gabbay uint64_t gpu_addr; 11836b5c08fSOded Gabbay uint32_t *cpu_ptr; 11936b5c08fSOded Gabbay }; 12036b5c08fSOded Gabbay 1214a488a7aSOded Gabbay struct kfd_dev { 1224a488a7aSOded Gabbay struct kgd_dev *kgd; 1234a488a7aSOded Gabbay 1244a488a7aSOded Gabbay const struct kfd_device_info *device_info; 1254a488a7aSOded Gabbay struct pci_dev *pdev; 1264a488a7aSOded Gabbay 1274a488a7aSOded Gabbay unsigned int id; /* topology stub index */ 1284a488a7aSOded Gabbay 12919f6d2a6SOded Gabbay phys_addr_t doorbell_base; /* Start of actual doorbells used by 13019f6d2a6SOded Gabbay * KFD. It is aligned for mapping 13119f6d2a6SOded Gabbay * into user mode 13219f6d2a6SOded Gabbay */ 13319f6d2a6SOded Gabbay size_t doorbell_id_offset; /* Doorbell offset (from KFD doorbell 13419f6d2a6SOded Gabbay * to HW doorbell, GFX reserved some 13519f6d2a6SOded Gabbay * at the start) 13619f6d2a6SOded Gabbay */ 13719f6d2a6SOded Gabbay size_t doorbell_process_limit; /* Number of processes we have doorbell 13819f6d2a6SOded Gabbay * space for. 13919f6d2a6SOded Gabbay */ 14019f6d2a6SOded Gabbay u32 __iomem *doorbell_kernel_ptr; /* This is a pointer for a doorbells 14119f6d2a6SOded Gabbay * page used by kernel queue 14219f6d2a6SOded Gabbay */ 14319f6d2a6SOded Gabbay 1444a488a7aSOded Gabbay struct kgd2kfd_shared_resources shared_resources; 1454a488a7aSOded Gabbay 14636b5c08fSOded Gabbay void *gtt_mem; 14736b5c08fSOded Gabbay uint64_t gtt_start_gpu_addr; 14836b5c08fSOded Gabbay void *gtt_start_cpu_ptr; 14936b5c08fSOded Gabbay void *gtt_sa_bitmap; 15036b5c08fSOded Gabbay struct mutex gtt_sa_lock; 15136b5c08fSOded Gabbay unsigned int gtt_sa_chunk_size; 15236b5c08fSOded Gabbay unsigned int gtt_sa_num_of_chunks; 15336b5c08fSOded Gabbay 154b3f5e6b4SAndrew Lewycky void *interrupt_ring; 155b3f5e6b4SAndrew Lewycky size_t interrupt_ring_size; 156b3f5e6b4SAndrew Lewycky atomic_t interrupt_ring_rptr; 157b3f5e6b4SAndrew Lewycky atomic_t interrupt_ring_wptr; 158b3f5e6b4SAndrew Lewycky struct work_struct interrupt_work; 159b3f5e6b4SAndrew Lewycky spinlock_t interrupt_lock; 160b3f5e6b4SAndrew Lewycky 161ed6e6a34SBen Goz /* QCM Device instance */ 162ed6e6a34SBen Goz struct device_queue_manager *dqm; 1634a488a7aSOded Gabbay 164ed6e6a34SBen Goz bool init_complete; 165b3f5e6b4SAndrew Lewycky /* 166b3f5e6b4SAndrew Lewycky * Interrupts of interest to KFD are copied 167b3f5e6b4SAndrew Lewycky * from the HW ring into a SW ring. 168b3f5e6b4SAndrew Lewycky */ 169b3f5e6b4SAndrew Lewycky bool interrupts_active; 1704a488a7aSOded Gabbay }; 1714a488a7aSOded Gabbay 1724a488a7aSOded Gabbay /* KGD2KFD callbacks */ 1734a488a7aSOded Gabbay void kgd2kfd_exit(void); 1744a488a7aSOded Gabbay struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, struct pci_dev *pdev); 1754a488a7aSOded Gabbay bool kgd2kfd_device_init(struct kfd_dev *kfd, 1764a488a7aSOded Gabbay const struct kgd2kfd_shared_resources *gpu_resources); 1774a488a7aSOded Gabbay void kgd2kfd_device_exit(struct kfd_dev *kfd); 1784a488a7aSOded Gabbay 1794a488a7aSOded Gabbay extern const struct kfd2kgd_calls *kfd2kgd; 1804a488a7aSOded Gabbay 18119f6d2a6SOded Gabbay enum kfd_mempool { 18219f6d2a6SOded Gabbay KFD_MEMPOOL_SYSTEM_CACHEABLE = 1, 18319f6d2a6SOded Gabbay KFD_MEMPOOL_SYSTEM_WRITECOMBINE = 2, 18419f6d2a6SOded Gabbay KFD_MEMPOOL_FRAMEBUFFER = 3, 18519f6d2a6SOded Gabbay }; 18619f6d2a6SOded Gabbay 1874a488a7aSOded Gabbay /* Character device interface */ 1884a488a7aSOded Gabbay int kfd_chardev_init(void); 1894a488a7aSOded Gabbay void kfd_chardev_exit(void); 1904a488a7aSOded Gabbay struct device *kfd_chardev(void); 1914a488a7aSOded Gabbay 192241f24f8SBen Goz /** 193241f24f8SBen Goz * enum kfd_preempt_type_filter 194241f24f8SBen Goz * 195241f24f8SBen Goz * @KFD_PREEMPT_TYPE_FILTER_SINGLE_QUEUE: Preempts single queue. 196241f24f8SBen Goz * 197241f24f8SBen Goz * @KFD_PRERMPT_TYPE_FILTER_ALL_QUEUES: Preempts all queues in the 198241f24f8SBen Goz * running queues list. 199241f24f8SBen Goz * 200241f24f8SBen Goz * @KFD_PRERMPT_TYPE_FILTER_BY_PASID: Preempts queues that belongs to 201241f24f8SBen Goz * specific process. 202241f24f8SBen Goz * 203241f24f8SBen Goz */ 204241f24f8SBen Goz enum kfd_preempt_type_filter { 205241f24f8SBen Goz KFD_PREEMPT_TYPE_FILTER_SINGLE_QUEUE, 206241f24f8SBen Goz KFD_PREEMPT_TYPE_FILTER_ALL_QUEUES, 207241f24f8SBen Goz KFD_PREEMPT_TYPE_FILTER_BY_PASID 208241f24f8SBen Goz }; 20919f6d2a6SOded Gabbay 2106e99df57SBen Goz enum kfd_preempt_type { 2116e99df57SBen Goz KFD_PREEMPT_TYPE_WAVEFRONT, 2126e99df57SBen Goz KFD_PREEMPT_TYPE_WAVEFRONT_RESET 2136e99df57SBen Goz }; 2146e99df57SBen Goz 215ed8aab45SBen Goz /** 216ed8aab45SBen Goz * enum kfd_queue_type 217ed8aab45SBen Goz * 218ed8aab45SBen Goz * @KFD_QUEUE_TYPE_COMPUTE: Regular user mode queue type. 219ed8aab45SBen Goz * 220ed8aab45SBen Goz * @KFD_QUEUE_TYPE_SDMA: Sdma user mode queue type. 221ed8aab45SBen Goz * 222ed8aab45SBen Goz * @KFD_QUEUE_TYPE_HIQ: HIQ queue type. 223ed8aab45SBen Goz * 224ed8aab45SBen Goz * @KFD_QUEUE_TYPE_DIQ: DIQ queue type. 225ed8aab45SBen Goz */ 226ed8aab45SBen Goz enum kfd_queue_type { 227ed8aab45SBen Goz KFD_QUEUE_TYPE_COMPUTE, 228ed8aab45SBen Goz KFD_QUEUE_TYPE_SDMA, 229ed8aab45SBen Goz KFD_QUEUE_TYPE_HIQ, 230ed8aab45SBen Goz KFD_QUEUE_TYPE_DIQ 231ed8aab45SBen Goz }; 232ed8aab45SBen Goz 2336e99df57SBen Goz enum kfd_queue_format { 2346e99df57SBen Goz KFD_QUEUE_FORMAT_PM4, 2356e99df57SBen Goz KFD_QUEUE_FORMAT_AQL 2366e99df57SBen Goz }; 2376e99df57SBen Goz 238ed8aab45SBen Goz /** 239ed8aab45SBen Goz * struct queue_properties 240ed8aab45SBen Goz * 241ed8aab45SBen Goz * @type: The queue type. 242ed8aab45SBen Goz * 243ed8aab45SBen Goz * @queue_id: Queue identifier. 244ed8aab45SBen Goz * 245ed8aab45SBen Goz * @queue_address: Queue ring buffer address. 246ed8aab45SBen Goz * 247ed8aab45SBen Goz * @queue_size: Queue ring buffer size. 248ed8aab45SBen Goz * 249ed8aab45SBen Goz * @priority: Defines the queue priority relative to other queues in the 250ed8aab45SBen Goz * process. 251ed8aab45SBen Goz * This is just an indication and HW scheduling may override the priority as 252ed8aab45SBen Goz * necessary while keeping the relative prioritization. 253ed8aab45SBen Goz * the priority granularity is from 0 to f which f is the highest priority. 254ed8aab45SBen Goz * currently all queues are initialized with the highest priority. 255ed8aab45SBen Goz * 256ed8aab45SBen Goz * @queue_percent: This field is partially implemented and currently a zero in 257ed8aab45SBen Goz * this field defines that the queue is non active. 258ed8aab45SBen Goz * 259ed8aab45SBen Goz * @read_ptr: User space address which points to the number of dwords the 260ed8aab45SBen Goz * cp read from the ring buffer. This field updates automatically by the H/W. 261ed8aab45SBen Goz * 262ed8aab45SBen Goz * @write_ptr: Defines the number of dwords written to the ring buffer. 263ed8aab45SBen Goz * 264ed8aab45SBen Goz * @doorbell_ptr: This field aim is to notify the H/W of new packet written to 265ed8aab45SBen Goz * the queue ring buffer. This field should be similar to write_ptr and the user 266ed8aab45SBen Goz * should update this field after he updated the write_ptr. 267ed8aab45SBen Goz * 268ed8aab45SBen Goz * @doorbell_off: The doorbell offset in the doorbell pci-bar. 269ed8aab45SBen Goz * 270ed8aab45SBen Goz * @is_interop: Defines if this is a interop queue. Interop queue means that the 271ed8aab45SBen Goz * queue can access both graphics and compute resources. 272ed8aab45SBen Goz * 273ed8aab45SBen Goz * @is_active: Defines if the queue is active or not. 274ed8aab45SBen Goz * 275ed8aab45SBen Goz * @vmid: If the scheduling mode is no cp scheduling the field defines the vmid 276ed8aab45SBen Goz * of the queue. 277ed8aab45SBen Goz * 278ed8aab45SBen Goz * This structure represents the queue properties for each queue no matter if 279ed8aab45SBen Goz * it's user mode or kernel mode queue. 280ed8aab45SBen Goz * 281ed8aab45SBen Goz */ 282ed8aab45SBen Goz struct queue_properties { 283ed8aab45SBen Goz enum kfd_queue_type type; 2846e99df57SBen Goz enum kfd_queue_format format; 285ed8aab45SBen Goz unsigned int queue_id; 286ed8aab45SBen Goz uint64_t queue_address; 287ed8aab45SBen Goz uint64_t queue_size; 288ed8aab45SBen Goz uint32_t priority; 289ed8aab45SBen Goz uint32_t queue_percent; 290ed8aab45SBen Goz uint32_t *read_ptr; 291ed8aab45SBen Goz uint32_t *write_ptr; 2925cd78de5SOded Gabbay uint32_t __iomem *doorbell_ptr; 293ed8aab45SBen Goz uint32_t doorbell_off; 294ed8aab45SBen Goz bool is_interop; 295ed8aab45SBen Goz bool is_active; 296ed8aab45SBen Goz /* Not relevant for user mode queues in cp scheduling */ 297ed8aab45SBen Goz unsigned int vmid; 29877669eb8SBen Goz /* Relevant only for sdma queues*/ 29977669eb8SBen Goz uint32_t sdma_engine_id; 30077669eb8SBen Goz uint32_t sdma_queue_id; 30177669eb8SBen Goz uint32_t sdma_vm_addr; 302ed8aab45SBen Goz }; 303ed8aab45SBen Goz 304ed8aab45SBen Goz /** 305ed8aab45SBen Goz * struct queue 306ed8aab45SBen Goz * 307ed8aab45SBen Goz * @list: Queue linked list. 308ed8aab45SBen Goz * 309ed8aab45SBen Goz * @mqd: The queue MQD. 310ed8aab45SBen Goz * 311ed8aab45SBen Goz * @mqd_mem_obj: The MQD local gpu memory object. 312ed8aab45SBen Goz * 313ed8aab45SBen Goz * @gart_mqd_addr: The MQD gart mc address. 314ed8aab45SBen Goz * 315ed8aab45SBen Goz * @properties: The queue properties. 316ed8aab45SBen Goz * 317ed8aab45SBen Goz * @mec: Used only in no cp scheduling mode and identifies to micro engine id 318ed8aab45SBen Goz * that the queue should be execute on. 319ed8aab45SBen Goz * 320ed8aab45SBen Goz * @pipe: Used only in no cp scheduling mode and identifies the queue's pipe id. 321ed8aab45SBen Goz * 322ed8aab45SBen Goz * @queue: Used only in no cp scheduliong mode and identifies the queue's slot. 323ed8aab45SBen Goz * 324ed8aab45SBen Goz * @process: The kfd process that created this queue. 325ed8aab45SBen Goz * 326ed8aab45SBen Goz * @device: The kfd device that created this queue. 327ed8aab45SBen Goz * 328ed8aab45SBen Goz * This structure represents user mode compute queues. 329ed8aab45SBen Goz * It contains all the necessary data to handle such queues. 330ed8aab45SBen Goz * 331ed8aab45SBen Goz */ 332ed8aab45SBen Goz 333ed8aab45SBen Goz struct queue { 334ed8aab45SBen Goz struct list_head list; 335ed8aab45SBen Goz void *mqd; 336ed8aab45SBen Goz struct kfd_mem_obj *mqd_mem_obj; 337ed8aab45SBen Goz uint64_t gart_mqd_addr; 338ed8aab45SBen Goz struct queue_properties properties; 339ed8aab45SBen Goz 340ed8aab45SBen Goz uint32_t mec; 341ed8aab45SBen Goz uint32_t pipe; 342ed8aab45SBen Goz uint32_t queue; 343ed8aab45SBen Goz 34477669eb8SBen Goz unsigned int sdma_id; 34577669eb8SBen Goz 346ed8aab45SBen Goz struct kfd_process *process; 347ed8aab45SBen Goz struct kfd_dev *device; 348ed8aab45SBen Goz }; 349ed8aab45SBen Goz 3506e99df57SBen Goz /* 3516e99df57SBen Goz * Please read the kfd_mqd_manager.h description. 3526e99df57SBen Goz */ 3536e99df57SBen Goz enum KFD_MQD_TYPE { 3546e99df57SBen Goz KFD_MQD_TYPE_CIK_COMPUTE = 0, /* for no cp scheduling */ 3556e99df57SBen Goz KFD_MQD_TYPE_CIK_HIQ, /* for hiq */ 3566e99df57SBen Goz KFD_MQD_TYPE_CIK_CP, /* for cp queues and diq */ 3576e99df57SBen Goz KFD_MQD_TYPE_CIK_SDMA, /* for sdma queues */ 3586e99df57SBen Goz KFD_MQD_TYPE_MAX 3596e99df57SBen Goz }; 3606e99df57SBen Goz 361241f24f8SBen Goz struct scheduling_resources { 362241f24f8SBen Goz unsigned int vmid_mask; 363241f24f8SBen Goz enum kfd_queue_type type; 364241f24f8SBen Goz uint64_t queue_mask; 365241f24f8SBen Goz uint64_t gws_mask; 366241f24f8SBen Goz uint32_t oac_mask; 367241f24f8SBen Goz uint32_t gds_heap_base; 368241f24f8SBen Goz uint32_t gds_heap_size; 369241f24f8SBen Goz }; 370241f24f8SBen Goz 371241f24f8SBen Goz struct process_queue_manager { 372241f24f8SBen Goz /* data */ 373241f24f8SBen Goz struct kfd_process *process; 374241f24f8SBen Goz unsigned int num_concurrent_processes; 375241f24f8SBen Goz struct list_head queues; 376241f24f8SBen Goz unsigned long *queue_slot_bitmap; 377241f24f8SBen Goz }; 378241f24f8SBen Goz 379241f24f8SBen Goz struct qcm_process_device { 380241f24f8SBen Goz /* The Device Queue Manager that owns this data */ 381241f24f8SBen Goz struct device_queue_manager *dqm; 382241f24f8SBen Goz struct process_queue_manager *pqm; 383241f24f8SBen Goz /* Device Queue Manager lock */ 384241f24f8SBen Goz struct mutex *lock; 385241f24f8SBen Goz /* Queues list */ 386241f24f8SBen Goz struct list_head queues_list; 387241f24f8SBen Goz struct list_head priv_queue_list; 388241f24f8SBen Goz 389241f24f8SBen Goz unsigned int queue_count; 390241f24f8SBen Goz unsigned int vmid; 391241f24f8SBen Goz bool is_debug; 392241f24f8SBen Goz /* 393241f24f8SBen Goz * All the memory management data should be here too 394241f24f8SBen Goz */ 395241f24f8SBen Goz uint64_t gds_context_area; 396241f24f8SBen Goz uint32_t sh_mem_config; 397241f24f8SBen Goz uint32_t sh_mem_bases; 398241f24f8SBen Goz uint32_t sh_mem_ape1_base; 399241f24f8SBen Goz uint32_t sh_mem_ape1_limit; 400241f24f8SBen Goz uint32_t page_table_base; 401241f24f8SBen Goz uint32_t gds_size; 402241f24f8SBen Goz uint32_t num_gws; 403241f24f8SBen Goz uint32_t num_oac; 404241f24f8SBen Goz }; 405241f24f8SBen Goz 40619f6d2a6SOded Gabbay /* Data that is per-process-per device. */ 40719f6d2a6SOded Gabbay struct kfd_process_device { 40819f6d2a6SOded Gabbay /* 40919f6d2a6SOded Gabbay * List of all per-device data for a process. 41019f6d2a6SOded Gabbay * Starts from kfd_process.per_device_data. 41119f6d2a6SOded Gabbay */ 41219f6d2a6SOded Gabbay struct list_head per_device_list; 41319f6d2a6SOded Gabbay 41419f6d2a6SOded Gabbay /* The device that owns this data. */ 41519f6d2a6SOded Gabbay struct kfd_dev *dev; 41619f6d2a6SOded Gabbay 41719f6d2a6SOded Gabbay 41845102048SBen Goz /* per-process-per device QCM data structure */ 41945102048SBen Goz struct qcm_process_device qpd; 42045102048SBen Goz 42119f6d2a6SOded Gabbay /*Apertures*/ 42219f6d2a6SOded Gabbay uint64_t lds_base; 42319f6d2a6SOded Gabbay uint64_t lds_limit; 42419f6d2a6SOded Gabbay uint64_t gpuvm_base; 42519f6d2a6SOded Gabbay uint64_t gpuvm_limit; 42619f6d2a6SOded Gabbay uint64_t scratch_base; 42719f6d2a6SOded Gabbay uint64_t scratch_limit; 42819f6d2a6SOded Gabbay 42919f6d2a6SOded Gabbay /* Is this process/pasid bound to this device? (amd_iommu_bind_pasid) */ 43019f6d2a6SOded Gabbay bool bound; 43119f6d2a6SOded Gabbay }; 43219f6d2a6SOded Gabbay 43352a5fdceSAlexey Skidanov #define qpd_to_pdd(x) container_of(x, struct kfd_process_device, qpd) 43452a5fdceSAlexey Skidanov 4354a488a7aSOded Gabbay /* Process data */ 4364a488a7aSOded Gabbay struct kfd_process { 43719f6d2a6SOded Gabbay /* 43819f6d2a6SOded Gabbay * kfd_process are stored in an mm_struct*->kfd_process* 43919f6d2a6SOded Gabbay * hash table (kfd_processes in kfd_process.c) 44019f6d2a6SOded Gabbay */ 44119f6d2a6SOded Gabbay struct hlist_node kfd_processes; 44219f6d2a6SOded Gabbay 44319f6d2a6SOded Gabbay struct mm_struct *mm; 44419f6d2a6SOded Gabbay 44519f6d2a6SOded Gabbay struct mutex mutex; 44619f6d2a6SOded Gabbay 44719f6d2a6SOded Gabbay /* 44819f6d2a6SOded Gabbay * In any process, the thread that started main() is the lead 44919f6d2a6SOded Gabbay * thread and outlives the rest. 45019f6d2a6SOded Gabbay * It is here because amd_iommu_bind_pasid wants a task_struct. 45119f6d2a6SOded Gabbay */ 45219f6d2a6SOded Gabbay struct task_struct *lead_thread; 45319f6d2a6SOded Gabbay 45419f6d2a6SOded Gabbay /* We want to receive a notification when the mm_struct is destroyed */ 45519f6d2a6SOded Gabbay struct mmu_notifier mmu_notifier; 45619f6d2a6SOded Gabbay 45719f6d2a6SOded Gabbay /* Use for delayed freeing of kfd_process structure */ 45819f6d2a6SOded Gabbay struct rcu_head rcu; 45919f6d2a6SOded Gabbay 46019f6d2a6SOded Gabbay unsigned int pasid; 46119f6d2a6SOded Gabbay 46219f6d2a6SOded Gabbay /* 46319f6d2a6SOded Gabbay * List of kfd_process_device structures, 46419f6d2a6SOded Gabbay * one for each device the process is using. 46519f6d2a6SOded Gabbay */ 46619f6d2a6SOded Gabbay struct list_head per_device_data; 46719f6d2a6SOded Gabbay 46845102048SBen Goz struct process_queue_manager pqm; 46945102048SBen Goz 47019f6d2a6SOded Gabbay /* The process's queues. */ 47119f6d2a6SOded Gabbay size_t queue_array_size; 47219f6d2a6SOded Gabbay 47319f6d2a6SOded Gabbay /* Size is queue_array_size, up to MAX_PROCESS_QUEUES. */ 47419f6d2a6SOded Gabbay struct kfd_queue **queues; 47519f6d2a6SOded Gabbay 47619f6d2a6SOded Gabbay unsigned long allocated_queue_bitmap[DIV_ROUND_UP(KFD_MAX_NUM_OF_QUEUES_PER_PROCESS, BITS_PER_LONG)]; 47719f6d2a6SOded Gabbay 47819f6d2a6SOded Gabbay /*Is the user space process 32 bit?*/ 47919f6d2a6SOded Gabbay bool is_32bit_user_mode; 4804a488a7aSOded Gabbay }; 4814a488a7aSOded Gabbay 48219f6d2a6SOded Gabbay void kfd_process_create_wq(void); 48319f6d2a6SOded Gabbay void kfd_process_destroy_wq(void); 48419f6d2a6SOded Gabbay struct kfd_process *kfd_create_process(const struct task_struct *); 48519f6d2a6SOded Gabbay struct kfd_process *kfd_get_process(const struct task_struct *); 48619f6d2a6SOded Gabbay 48764c7f8cfSBen Goz struct kfd_process_device *kfd_bind_process_to_device(struct kfd_dev *dev, 48864c7f8cfSBen Goz struct kfd_process *p); 489b17f068aSOded Gabbay void kfd_unbind_process_from_device(struct kfd_dev *dev, unsigned int pasid); 49019f6d2a6SOded Gabbay struct kfd_process_device *kfd_get_process_device_data(struct kfd_dev *dev, 491093c7d8cSAlexey Skidanov struct kfd_process *p); 492093c7d8cSAlexey Skidanov struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev, 493093c7d8cSAlexey Skidanov struct kfd_process *p); 49419f6d2a6SOded Gabbay 495775921edSAlexey Skidanov /* Process device data iterator */ 496775921edSAlexey Skidanov struct kfd_process_device *kfd_get_first_process_device_data(struct kfd_process *p); 497775921edSAlexey Skidanov struct kfd_process_device *kfd_get_next_process_device_data(struct kfd_process *p, 498775921edSAlexey Skidanov struct kfd_process_device *pdd); 499775921edSAlexey Skidanov bool kfd_has_process_device_data(struct kfd_process *p); 500775921edSAlexey Skidanov 50119f6d2a6SOded Gabbay /* PASIDs */ 50219f6d2a6SOded Gabbay int kfd_pasid_init(void); 50319f6d2a6SOded Gabbay void kfd_pasid_exit(void); 50419f6d2a6SOded Gabbay bool kfd_set_pasid_limit(unsigned int new_limit); 50519f6d2a6SOded Gabbay unsigned int kfd_get_pasid_limit(void); 50619f6d2a6SOded Gabbay unsigned int kfd_pasid_alloc(void); 50719f6d2a6SOded Gabbay void kfd_pasid_free(unsigned int pasid); 50819f6d2a6SOded Gabbay 50919f6d2a6SOded Gabbay /* Doorbells */ 51019f6d2a6SOded Gabbay void kfd_doorbell_init(struct kfd_dev *kfd); 51119f6d2a6SOded Gabbay int kfd_doorbell_mmap(struct kfd_process *process, struct vm_area_struct *vma); 51219f6d2a6SOded Gabbay u32 __iomem *kfd_get_kernel_doorbell(struct kfd_dev *kfd, 51319f6d2a6SOded Gabbay unsigned int *doorbell_off); 51419f6d2a6SOded Gabbay void kfd_release_kernel_doorbell(struct kfd_dev *kfd, u32 __iomem *db_addr); 51519f6d2a6SOded Gabbay u32 read_kernel_doorbell(u32 __iomem *db); 51619f6d2a6SOded Gabbay void write_kernel_doorbell(u32 __iomem *db, u32 value); 51719f6d2a6SOded Gabbay unsigned int kfd_queue_id_to_doorbell(struct kfd_dev *kfd, 51819f6d2a6SOded Gabbay struct kfd_process *process, 51919f6d2a6SOded Gabbay unsigned int queue_id); 52019f6d2a6SOded Gabbay 5214a488a7aSOded Gabbay extern struct device *kfd_device; 5224a488a7aSOded Gabbay 5235b5c4e40SEvgeny Pinchuk /* Topology */ 5245b5c4e40SEvgeny Pinchuk int kfd_topology_init(void); 5255b5c4e40SEvgeny Pinchuk void kfd_topology_shutdown(void); 5265b5c4e40SEvgeny Pinchuk int kfd_topology_add_device(struct kfd_dev *gpu); 5275b5c4e40SEvgeny Pinchuk int kfd_topology_remove_device(struct kfd_dev *gpu); 5285b5c4e40SEvgeny Pinchuk struct kfd_dev *kfd_device_by_id(uint32_t gpu_id); 5295b5c4e40SEvgeny Pinchuk struct kfd_dev *kfd_device_by_pci_dev(const struct pci_dev *pdev); 5305b5c4e40SEvgeny Pinchuk struct kfd_dev *kfd_topology_enum_kfd_devices(uint8_t idx); 5315b5c4e40SEvgeny Pinchuk 5324a488a7aSOded Gabbay /* Interrupts */ 533b3f5e6b4SAndrew Lewycky int kfd_interrupt_init(struct kfd_dev *dev); 534b3f5e6b4SAndrew Lewycky void kfd_interrupt_exit(struct kfd_dev *dev); 535b3f5e6b4SAndrew Lewycky void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry); 536b3f5e6b4SAndrew Lewycky bool enqueue_ih_ring_entry(struct kfd_dev *kfd, const void *ih_ring_entry); 5374a488a7aSOded Gabbay 5384a488a7aSOded Gabbay /* Power Management */ 539b3f5e6b4SAndrew Lewycky void kgd2kfd_suspend(struct kfd_dev *kfd); 540b3f5e6b4SAndrew Lewycky int kgd2kfd_resume(struct kfd_dev *kfd); 5414a488a7aSOded Gabbay 54219f6d2a6SOded Gabbay /* amdkfd Apertures */ 54319f6d2a6SOded Gabbay int kfd_init_apertures(struct kfd_process *process); 54419f6d2a6SOded Gabbay 545ed6e6a34SBen Goz /* Queue Context Management */ 546241f24f8SBen Goz inline uint32_t lower_32(uint64_t x); 547241f24f8SBen Goz inline uint32_t upper_32(uint64_t x); 54877669eb8SBen Goz struct cik_sdma_rlc_registers *get_sdma_mqd(void *mqd); 54977669eb8SBen Goz inline uint32_t get_sdma_base_addr(struct cik_sdma_rlc_registers *m); 550241f24f8SBen Goz 551ed6e6a34SBen Goz int init_queue(struct queue **q, struct queue_properties properties); 552ed6e6a34SBen Goz void uninit_queue(struct queue *q); 55345102048SBen Goz void print_queue_properties(struct queue_properties *q); 554ed6e6a34SBen Goz void print_queue(struct queue *q); 555ed6e6a34SBen Goz 55664c7f8cfSBen Goz struct mqd_manager *mqd_manager_init(enum KFD_MQD_TYPE type, 55764c7f8cfSBen Goz struct kfd_dev *dev); 55864c7f8cfSBen Goz struct device_queue_manager *device_queue_manager_init(struct kfd_dev *dev); 55964c7f8cfSBen Goz void device_queue_manager_uninit(struct device_queue_manager *dqm); 560241f24f8SBen Goz struct kernel_queue *kernel_queue_init(struct kfd_dev *dev, 561241f24f8SBen Goz enum kfd_queue_type type); 562241f24f8SBen Goz void kernel_queue_uninit(struct kernel_queue *kq); 563241f24f8SBen Goz 56445102048SBen Goz /* Process Queue Manager */ 56545102048SBen Goz struct process_queue_node { 56645102048SBen Goz struct queue *q; 56745102048SBen Goz struct kernel_queue *kq; 56845102048SBen Goz struct list_head process_queue_list; 56945102048SBen Goz }; 57045102048SBen Goz 57145102048SBen Goz int pqm_init(struct process_queue_manager *pqm, struct kfd_process *p); 57245102048SBen Goz void pqm_uninit(struct process_queue_manager *pqm); 57345102048SBen Goz int pqm_create_queue(struct process_queue_manager *pqm, 57445102048SBen Goz struct kfd_dev *dev, 57545102048SBen Goz struct file *f, 57645102048SBen Goz struct queue_properties *properties, 57745102048SBen Goz unsigned int flags, 57845102048SBen Goz enum kfd_queue_type type, 57945102048SBen Goz unsigned int *qid); 58045102048SBen Goz int pqm_destroy_queue(struct process_queue_manager *pqm, unsigned int qid); 58145102048SBen Goz int pqm_update_queue(struct process_queue_manager *pqm, unsigned int qid, 58245102048SBen Goz struct queue_properties *p); 58345102048SBen Goz 584ed6e6a34SBen Goz /* Packet Manager */ 585ed6e6a34SBen Goz 586241f24f8SBen Goz #define KFD_HIQ_TIMEOUT (500) 587241f24f8SBen Goz 58864c7f8cfSBen Goz #define KFD_FENCE_COMPLETED (100) 58964c7f8cfSBen Goz #define KFD_FENCE_INIT (10) 590241f24f8SBen Goz #define KFD_UNMAP_LATENCY (150) 591241f24f8SBen Goz 592ed6e6a34SBen Goz struct packet_manager { 593ed6e6a34SBen Goz struct device_queue_manager *dqm; 594ed6e6a34SBen Goz struct kernel_queue *priv_queue; 595ed6e6a34SBen Goz struct mutex lock; 596ed6e6a34SBen Goz bool allocated; 597ed6e6a34SBen Goz struct kfd_mem_obj *ib_buffer_obj; 598ed6e6a34SBen Goz }; 599ed6e6a34SBen Goz 60064c7f8cfSBen Goz int pm_init(struct packet_manager *pm, struct device_queue_manager *dqm); 60164c7f8cfSBen Goz void pm_uninit(struct packet_manager *pm); 60264c7f8cfSBen Goz int pm_send_set_resources(struct packet_manager *pm, 60364c7f8cfSBen Goz struct scheduling_resources *res); 60464c7f8cfSBen Goz int pm_send_runlist(struct packet_manager *pm, struct list_head *dqm_queues); 60564c7f8cfSBen Goz int pm_send_query_status(struct packet_manager *pm, uint64_t fence_address, 60664c7f8cfSBen Goz uint32_t fence_value); 60764c7f8cfSBen Goz 60864c7f8cfSBen Goz int pm_send_unmap_queue(struct packet_manager *pm, enum kfd_queue_type type, 60964c7f8cfSBen Goz enum kfd_preempt_type_filter mode, 61064c7f8cfSBen Goz uint32_t filter_param, bool reset, 61164c7f8cfSBen Goz unsigned int sdma_engine); 61264c7f8cfSBen Goz 613241f24f8SBen Goz void pm_release_ib(struct packet_manager *pm); 614241f24f8SBen Goz 61519f6d2a6SOded Gabbay uint64_t kfd_get_number_elems(struct kfd_dev *kfd); 61619f6d2a6SOded Gabbay phys_addr_t kfd_get_process_doorbells(struct kfd_dev *dev, 61719f6d2a6SOded Gabbay struct kfd_process *process); 61819f6d2a6SOded Gabbay 6194a488a7aSOded Gabbay #endif 620