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 #define KFD_MAX_NUM_OF_PROCESSES 512 56b8cbab04SOded Gabbay #define KFD_MAX_NUM_OF_QUEUES_PER_PROCESS 1024 5719f6d2a6SOded Gabbay 5819f6d2a6SOded Gabbay /* 59b8cbab04SOded Gabbay * Kernel module parameter to specify maximum number of supported queues per 60b8cbab04SOded Gabbay * device 6119f6d2a6SOded Gabbay */ 62b8cbab04SOded Gabbay extern int max_num_of_queues_per_device; 6319f6d2a6SOded Gabbay 64b8cbab04SOded Gabbay #define KFD_MAX_NUM_OF_QUEUES_PER_DEVICE_DEFAULT 4096 65b8cbab04SOded Gabbay #define KFD_MAX_NUM_OF_QUEUES_PER_DEVICE \ 66b8cbab04SOded Gabbay (KFD_MAX_NUM_OF_PROCESSES * \ 67b8cbab04SOded Gabbay KFD_MAX_NUM_OF_QUEUES_PER_PROCESS) 6819f6d2a6SOded Gabbay 69ed6e6a34SBen Goz #define KFD_KERNEL_QUEUE_SIZE 2048 70ed6e6a34SBen Goz 7131c21fecSBen Goz /* Kernel module parameter to specify the scheduling policy */ 7231c21fecSBen Goz extern int sched_policy; 7331c21fecSBen Goz 7431c21fecSBen Goz /** 7531c21fecSBen Goz * enum kfd_sched_policy 7631c21fecSBen Goz * 7731c21fecSBen Goz * @KFD_SCHED_POLICY_HWS: H/W scheduling policy known as command processor (cp) 7831c21fecSBen Goz * scheduling. In this scheduling mode we're using the firmware code to 7931c21fecSBen Goz * schedule the user mode queues and kernel queues such as HIQ and DIQ. 8031c21fecSBen Goz * the HIQ queue is used as a special queue that dispatches the configuration 8131c21fecSBen Goz * to the cp and the user mode queues list that are currently running. 8231c21fecSBen Goz * the DIQ queue is a debugging queue that dispatches debugging commands to the 8331c21fecSBen Goz * firmware. 8431c21fecSBen Goz * in this scheduling mode user mode queues over subscription feature is 8531c21fecSBen Goz * enabled. 8631c21fecSBen Goz * 8731c21fecSBen Goz * @KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION: The same as above but the over 8831c21fecSBen Goz * subscription feature disabled. 8931c21fecSBen Goz * 9031c21fecSBen Goz * @KFD_SCHED_POLICY_NO_HWS: no H/W scheduling policy is a mode which directly 9131c21fecSBen Goz * set the command processor registers and sets the queues "manually". This 9231c21fecSBen Goz * mode is used *ONLY* for debugging proposes. 9331c21fecSBen Goz * 9431c21fecSBen Goz */ 9531c21fecSBen Goz enum kfd_sched_policy { 9631c21fecSBen Goz KFD_SCHED_POLICY_HWS = 0, 9731c21fecSBen Goz KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION, 9831c21fecSBen Goz KFD_SCHED_POLICY_NO_HWS 9931c21fecSBen Goz }; 10031c21fecSBen Goz 101ed6e6a34SBen Goz enum cache_policy { 102ed6e6a34SBen Goz cache_policy_coherent, 103ed6e6a34SBen Goz cache_policy_noncoherent 104ed6e6a34SBen Goz }; 105ed6e6a34SBen Goz 1060da7558cSBen Goz enum asic_family_type { 1070da7558cSBen Goz CHIP_KAVERI = 0, 1080da7558cSBen Goz CHIP_CARRIZO 1090da7558cSBen Goz }; 1100da7558cSBen Goz 1114a488a7aSOded Gabbay struct kfd_device_info { 1120da7558cSBen Goz unsigned int asic_family; 1134a488a7aSOded Gabbay unsigned int max_pasid_bits; 1144a488a7aSOded Gabbay size_t ih_ring_entry_size; 115f7c826adSAlexey Skidanov uint8_t num_of_watch_points; 11619f6d2a6SOded Gabbay uint16_t mqd_size_aligned; 1174a488a7aSOded Gabbay }; 1184a488a7aSOded Gabbay 11936b5c08fSOded Gabbay struct kfd_mem_obj { 12036b5c08fSOded Gabbay uint32_t range_start; 12136b5c08fSOded Gabbay uint32_t range_end; 12236b5c08fSOded Gabbay uint64_t gpu_addr; 12336b5c08fSOded Gabbay uint32_t *cpu_ptr; 12436b5c08fSOded Gabbay }; 12536b5c08fSOded Gabbay 1264a488a7aSOded Gabbay struct kfd_dev { 1274a488a7aSOded Gabbay struct kgd_dev *kgd; 1284a488a7aSOded Gabbay 1294a488a7aSOded Gabbay const struct kfd_device_info *device_info; 1304a488a7aSOded Gabbay struct pci_dev *pdev; 1314a488a7aSOded Gabbay 1324a488a7aSOded Gabbay unsigned int id; /* topology stub index */ 1334a488a7aSOded Gabbay 13419f6d2a6SOded Gabbay phys_addr_t doorbell_base; /* Start of actual doorbells used by 13519f6d2a6SOded Gabbay * KFD. It is aligned for mapping 13619f6d2a6SOded Gabbay * into user mode 13719f6d2a6SOded Gabbay */ 13819f6d2a6SOded Gabbay size_t doorbell_id_offset; /* Doorbell offset (from KFD doorbell 13919f6d2a6SOded Gabbay * to HW doorbell, GFX reserved some 14019f6d2a6SOded Gabbay * at the start) 14119f6d2a6SOded Gabbay */ 14219f6d2a6SOded Gabbay size_t doorbell_process_limit; /* Number of processes we have doorbell 14319f6d2a6SOded Gabbay * space for. 14419f6d2a6SOded Gabbay */ 14519f6d2a6SOded Gabbay u32 __iomem *doorbell_kernel_ptr; /* This is a pointer for a doorbells 14619f6d2a6SOded Gabbay * page used by kernel queue 14719f6d2a6SOded Gabbay */ 14819f6d2a6SOded Gabbay 1494a488a7aSOded Gabbay struct kgd2kfd_shared_resources shared_resources; 1504a488a7aSOded Gabbay 151cea405b1SXihan Zhang const struct kfd2kgd_calls *kfd2kgd; 152cea405b1SXihan Zhang struct mutex doorbell_mutex; 153cea405b1SXihan Zhang unsigned long doorbell_available_index[DIV_ROUND_UP( 154cea405b1SXihan Zhang KFD_MAX_NUM_OF_QUEUES_PER_PROCESS, BITS_PER_LONG)]; 155cea405b1SXihan Zhang 15636b5c08fSOded Gabbay void *gtt_mem; 15736b5c08fSOded Gabbay uint64_t gtt_start_gpu_addr; 15836b5c08fSOded Gabbay void *gtt_start_cpu_ptr; 15936b5c08fSOded Gabbay void *gtt_sa_bitmap; 16036b5c08fSOded Gabbay struct mutex gtt_sa_lock; 16136b5c08fSOded Gabbay unsigned int gtt_sa_chunk_size; 16236b5c08fSOded Gabbay unsigned int gtt_sa_num_of_chunks; 16336b5c08fSOded Gabbay 164ed6e6a34SBen Goz /* QCM Device instance */ 165ed6e6a34SBen Goz struct device_queue_manager *dqm; 1664a488a7aSOded Gabbay 167ed6e6a34SBen Goz bool init_complete; 1684a488a7aSOded Gabbay }; 1694a488a7aSOded Gabbay 1704a488a7aSOded Gabbay /* KGD2KFD callbacks */ 1714a488a7aSOded Gabbay void kgd2kfd_exit(void); 172cea405b1SXihan Zhang struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, 173cea405b1SXihan Zhang struct pci_dev *pdev, const struct kfd2kgd_calls *f2g); 1744a488a7aSOded Gabbay bool kgd2kfd_device_init(struct kfd_dev *kfd, 1754a488a7aSOded Gabbay const struct kgd2kfd_shared_resources *gpu_resources); 1764a488a7aSOded Gabbay void kgd2kfd_device_exit(struct kfd_dev *kfd); 1774a488a7aSOded Gabbay 17819f6d2a6SOded Gabbay enum kfd_mempool { 17919f6d2a6SOded Gabbay KFD_MEMPOOL_SYSTEM_CACHEABLE = 1, 18019f6d2a6SOded Gabbay KFD_MEMPOOL_SYSTEM_WRITECOMBINE = 2, 18119f6d2a6SOded Gabbay KFD_MEMPOOL_FRAMEBUFFER = 3, 18219f6d2a6SOded Gabbay }; 18319f6d2a6SOded Gabbay 1844a488a7aSOded Gabbay /* Character device interface */ 1854a488a7aSOded Gabbay int kfd_chardev_init(void); 1864a488a7aSOded Gabbay void kfd_chardev_exit(void); 1874a488a7aSOded Gabbay struct device *kfd_chardev(void); 1884a488a7aSOded Gabbay 189241f24f8SBen Goz /** 190241f24f8SBen Goz * enum kfd_preempt_type_filter 191241f24f8SBen Goz * 192241f24f8SBen Goz * @KFD_PREEMPT_TYPE_FILTER_SINGLE_QUEUE: Preempts single queue. 193241f24f8SBen Goz * 194241f24f8SBen Goz * @KFD_PRERMPT_TYPE_FILTER_ALL_QUEUES: Preempts all queues in the 195241f24f8SBen Goz * running queues list. 196241f24f8SBen Goz * 197241f24f8SBen Goz * @KFD_PRERMPT_TYPE_FILTER_BY_PASID: Preempts queues that belongs to 198241f24f8SBen Goz * specific process. 199241f24f8SBen Goz * 200241f24f8SBen Goz */ 201241f24f8SBen Goz enum kfd_preempt_type_filter { 202241f24f8SBen Goz KFD_PREEMPT_TYPE_FILTER_SINGLE_QUEUE, 203241f24f8SBen Goz KFD_PREEMPT_TYPE_FILTER_ALL_QUEUES, 204241f24f8SBen Goz KFD_PREEMPT_TYPE_FILTER_BY_PASID 205241f24f8SBen Goz }; 20619f6d2a6SOded Gabbay 2076e99df57SBen Goz enum kfd_preempt_type { 2086e99df57SBen Goz KFD_PREEMPT_TYPE_WAVEFRONT, 2096e99df57SBen Goz KFD_PREEMPT_TYPE_WAVEFRONT_RESET 2106e99df57SBen Goz }; 2116e99df57SBen Goz 212ed8aab45SBen Goz /** 213ed8aab45SBen Goz * enum kfd_queue_type 214ed8aab45SBen Goz * 215ed8aab45SBen Goz * @KFD_QUEUE_TYPE_COMPUTE: Regular user mode queue type. 216ed8aab45SBen Goz * 217ed8aab45SBen Goz * @KFD_QUEUE_TYPE_SDMA: Sdma user mode queue type. 218ed8aab45SBen Goz * 219ed8aab45SBen Goz * @KFD_QUEUE_TYPE_HIQ: HIQ queue type. 220ed8aab45SBen Goz * 221ed8aab45SBen Goz * @KFD_QUEUE_TYPE_DIQ: DIQ queue type. 222ed8aab45SBen Goz */ 223ed8aab45SBen Goz enum kfd_queue_type { 224ed8aab45SBen Goz KFD_QUEUE_TYPE_COMPUTE, 225ed8aab45SBen Goz KFD_QUEUE_TYPE_SDMA, 226ed8aab45SBen Goz KFD_QUEUE_TYPE_HIQ, 227ed8aab45SBen Goz KFD_QUEUE_TYPE_DIQ 228ed8aab45SBen Goz }; 229ed8aab45SBen Goz 2306e99df57SBen Goz enum kfd_queue_format { 2316e99df57SBen Goz KFD_QUEUE_FORMAT_PM4, 2326e99df57SBen Goz KFD_QUEUE_FORMAT_AQL 2336e99df57SBen Goz }; 2346e99df57SBen Goz 235ed8aab45SBen Goz /** 236ed8aab45SBen Goz * struct queue_properties 237ed8aab45SBen Goz * 238ed8aab45SBen Goz * @type: The queue type. 239ed8aab45SBen Goz * 240ed8aab45SBen Goz * @queue_id: Queue identifier. 241ed8aab45SBen Goz * 242ed8aab45SBen Goz * @queue_address: Queue ring buffer address. 243ed8aab45SBen Goz * 244ed8aab45SBen Goz * @queue_size: Queue ring buffer size. 245ed8aab45SBen Goz * 246ed8aab45SBen Goz * @priority: Defines the queue priority relative to other queues in the 247ed8aab45SBen Goz * process. 248ed8aab45SBen Goz * This is just an indication and HW scheduling may override the priority as 249ed8aab45SBen Goz * necessary while keeping the relative prioritization. 250ed8aab45SBen Goz * the priority granularity is from 0 to f which f is the highest priority. 251ed8aab45SBen Goz * currently all queues are initialized with the highest priority. 252ed8aab45SBen Goz * 253ed8aab45SBen Goz * @queue_percent: This field is partially implemented and currently a zero in 254ed8aab45SBen Goz * this field defines that the queue is non active. 255ed8aab45SBen Goz * 256ed8aab45SBen Goz * @read_ptr: User space address which points to the number of dwords the 257ed8aab45SBen Goz * cp read from the ring buffer. This field updates automatically by the H/W. 258ed8aab45SBen Goz * 259ed8aab45SBen Goz * @write_ptr: Defines the number of dwords written to the ring buffer. 260ed8aab45SBen Goz * 261ed8aab45SBen Goz * @doorbell_ptr: This field aim is to notify the H/W of new packet written to 262ed8aab45SBen Goz * the queue ring buffer. This field should be similar to write_ptr and the user 263ed8aab45SBen Goz * should update this field after he updated the write_ptr. 264ed8aab45SBen Goz * 265ed8aab45SBen Goz * @doorbell_off: The doorbell offset in the doorbell pci-bar. 266ed8aab45SBen Goz * 267ed8aab45SBen Goz * @is_interop: Defines if this is a interop queue. Interop queue means that the 268ed8aab45SBen Goz * queue can access both graphics and compute resources. 269ed8aab45SBen Goz * 270ed8aab45SBen Goz * @is_active: Defines if the queue is active or not. 271ed8aab45SBen Goz * 272ed8aab45SBen Goz * @vmid: If the scheduling mode is no cp scheduling the field defines the vmid 273ed8aab45SBen Goz * of the queue. 274ed8aab45SBen Goz * 275ed8aab45SBen Goz * This structure represents the queue properties for each queue no matter if 276ed8aab45SBen Goz * it's user mode or kernel mode queue. 277ed8aab45SBen Goz * 278ed8aab45SBen Goz */ 279ed8aab45SBen Goz struct queue_properties { 280ed8aab45SBen Goz enum kfd_queue_type type; 2816e99df57SBen Goz enum kfd_queue_format format; 282ed8aab45SBen Goz unsigned int queue_id; 283ed8aab45SBen Goz uint64_t queue_address; 284ed8aab45SBen Goz uint64_t queue_size; 285ed8aab45SBen Goz uint32_t priority; 286ed8aab45SBen Goz uint32_t queue_percent; 287ed8aab45SBen Goz uint32_t *read_ptr; 288ed8aab45SBen Goz uint32_t *write_ptr; 2895cd78de5SOded Gabbay uint32_t __iomem *doorbell_ptr; 290ed8aab45SBen Goz uint32_t doorbell_off; 291ed8aab45SBen Goz bool is_interop; 292ed8aab45SBen Goz bool is_active; 293ed8aab45SBen Goz /* Not relevant for user mode queues in cp scheduling */ 294ed8aab45SBen Goz unsigned int vmid; 29577669eb8SBen Goz /* Relevant only for sdma queues*/ 29677669eb8SBen Goz uint32_t sdma_engine_id; 29777669eb8SBen Goz uint32_t sdma_queue_id; 29877669eb8SBen Goz uint32_t sdma_vm_addr; 299ff3d04a1SBen Goz /* Relevant only for VI */ 300ff3d04a1SBen Goz uint64_t eop_ring_buffer_address; 301ff3d04a1SBen Goz uint32_t eop_ring_buffer_size; 302ff3d04a1SBen Goz uint64_t ctx_save_restore_area_address; 303ff3d04a1SBen Goz uint32_t ctx_save_restore_area_size; 304ed8aab45SBen Goz }; 305ed8aab45SBen Goz 306ed8aab45SBen Goz /** 307ed8aab45SBen Goz * struct queue 308ed8aab45SBen Goz * 309ed8aab45SBen Goz * @list: Queue linked list. 310ed8aab45SBen Goz * 311ed8aab45SBen Goz * @mqd: The queue MQD. 312ed8aab45SBen Goz * 313ed8aab45SBen Goz * @mqd_mem_obj: The MQD local gpu memory object. 314ed8aab45SBen Goz * 315ed8aab45SBen Goz * @gart_mqd_addr: The MQD gart mc address. 316ed8aab45SBen Goz * 317ed8aab45SBen Goz * @properties: The queue properties. 318ed8aab45SBen Goz * 319ed8aab45SBen Goz * @mec: Used only in no cp scheduling mode and identifies to micro engine id 320ed8aab45SBen Goz * that the queue should be execute on. 321ed8aab45SBen Goz * 322ed8aab45SBen Goz * @pipe: Used only in no cp scheduling mode and identifies the queue's pipe id. 323ed8aab45SBen Goz * 324ed8aab45SBen Goz * @queue: Used only in no cp scheduliong mode and identifies the queue's slot. 325ed8aab45SBen Goz * 326ed8aab45SBen Goz * @process: The kfd process that created this queue. 327ed8aab45SBen Goz * 328ed8aab45SBen Goz * @device: The kfd device that created this queue. 329ed8aab45SBen Goz * 330ed8aab45SBen Goz * This structure represents user mode compute queues. 331ed8aab45SBen Goz * It contains all the necessary data to handle such queues. 332ed8aab45SBen Goz * 333ed8aab45SBen Goz */ 334ed8aab45SBen Goz 335ed8aab45SBen Goz struct queue { 336ed8aab45SBen Goz struct list_head list; 337ed8aab45SBen Goz void *mqd; 338ed8aab45SBen Goz struct kfd_mem_obj *mqd_mem_obj; 339ed8aab45SBen Goz uint64_t gart_mqd_addr; 340ed8aab45SBen Goz struct queue_properties properties; 341ed8aab45SBen Goz 342ed8aab45SBen Goz uint32_t mec; 343ed8aab45SBen Goz uint32_t pipe; 344ed8aab45SBen Goz uint32_t queue; 345ed8aab45SBen Goz 34677669eb8SBen Goz unsigned int sdma_id; 34777669eb8SBen Goz 348ed8aab45SBen Goz struct kfd_process *process; 349ed8aab45SBen Goz struct kfd_dev *device; 350ed8aab45SBen Goz }; 351ed8aab45SBen Goz 3526e99df57SBen Goz /* 3536e99df57SBen Goz * Please read the kfd_mqd_manager.h description. 3546e99df57SBen Goz */ 3556e99df57SBen Goz enum KFD_MQD_TYPE { 35685d258f9SBen Goz KFD_MQD_TYPE_COMPUTE = 0, /* for no cp scheduling */ 35785d258f9SBen Goz KFD_MQD_TYPE_HIQ, /* for hiq */ 35885d258f9SBen Goz KFD_MQD_TYPE_CP, /* for cp queues and diq */ 35985d258f9SBen Goz KFD_MQD_TYPE_SDMA, /* for sdma queues */ 3606e99df57SBen Goz KFD_MQD_TYPE_MAX 3616e99df57SBen Goz }; 3626e99df57SBen Goz 363241f24f8SBen Goz struct scheduling_resources { 364241f24f8SBen Goz unsigned int vmid_mask; 365241f24f8SBen Goz enum kfd_queue_type type; 366241f24f8SBen Goz uint64_t queue_mask; 367241f24f8SBen Goz uint64_t gws_mask; 368241f24f8SBen Goz uint32_t oac_mask; 369241f24f8SBen Goz uint32_t gds_heap_base; 370241f24f8SBen Goz uint32_t gds_heap_size; 371241f24f8SBen Goz }; 372241f24f8SBen Goz 373241f24f8SBen Goz struct process_queue_manager { 374241f24f8SBen Goz /* data */ 375241f24f8SBen Goz struct kfd_process *process; 376241f24f8SBen Goz unsigned int num_concurrent_processes; 377241f24f8SBen Goz struct list_head queues; 378241f24f8SBen Goz unsigned long *queue_slot_bitmap; 379241f24f8SBen Goz }; 380241f24f8SBen Goz 381241f24f8SBen Goz struct qcm_process_device { 382241f24f8SBen Goz /* The Device Queue Manager that owns this data */ 383241f24f8SBen Goz struct device_queue_manager *dqm; 384241f24f8SBen Goz struct process_queue_manager *pqm; 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 48276baee6cSOded Gabbay /** 48376baee6cSOded Gabbay * Ioctl function type. 48476baee6cSOded Gabbay * 48576baee6cSOded Gabbay * \param filep pointer to file structure. 48676baee6cSOded Gabbay * \param p amdkfd process pointer. 48776baee6cSOded Gabbay * \param data pointer to arg that was copied from user. 48876baee6cSOded Gabbay */ 48976baee6cSOded Gabbay typedef int amdkfd_ioctl_t(struct file *filep, struct kfd_process *p, 49076baee6cSOded Gabbay void *data); 49176baee6cSOded Gabbay 49276baee6cSOded Gabbay struct amdkfd_ioctl_desc { 49376baee6cSOded Gabbay unsigned int cmd; 49476baee6cSOded Gabbay int flags; 49576baee6cSOded Gabbay amdkfd_ioctl_t *func; 49676baee6cSOded Gabbay unsigned int cmd_drv; 49776baee6cSOded Gabbay const char *name; 49876baee6cSOded Gabbay }; 49976baee6cSOded Gabbay 50019f6d2a6SOded Gabbay void kfd_process_create_wq(void); 50119f6d2a6SOded Gabbay void kfd_process_destroy_wq(void); 50219f6d2a6SOded Gabbay struct kfd_process *kfd_create_process(const struct task_struct *); 50319f6d2a6SOded Gabbay struct kfd_process *kfd_get_process(const struct task_struct *); 50419f6d2a6SOded Gabbay 50564c7f8cfSBen Goz struct kfd_process_device *kfd_bind_process_to_device(struct kfd_dev *dev, 50664c7f8cfSBen Goz struct kfd_process *p); 507b17f068aSOded Gabbay void kfd_unbind_process_from_device(struct kfd_dev *dev, unsigned int pasid); 50819f6d2a6SOded Gabbay struct kfd_process_device *kfd_get_process_device_data(struct kfd_dev *dev, 509093c7d8cSAlexey Skidanov struct kfd_process *p); 510093c7d8cSAlexey Skidanov struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev, 511093c7d8cSAlexey Skidanov struct kfd_process *p); 51219f6d2a6SOded Gabbay 513775921edSAlexey Skidanov /* Process device data iterator */ 514775921edSAlexey Skidanov struct kfd_process_device *kfd_get_first_process_device_data(struct kfd_process *p); 515775921edSAlexey Skidanov struct kfd_process_device *kfd_get_next_process_device_data(struct kfd_process *p, 516775921edSAlexey Skidanov struct kfd_process_device *pdd); 517775921edSAlexey Skidanov bool kfd_has_process_device_data(struct kfd_process *p); 518775921edSAlexey Skidanov 51919f6d2a6SOded Gabbay /* PASIDs */ 52019f6d2a6SOded Gabbay int kfd_pasid_init(void); 52119f6d2a6SOded Gabbay void kfd_pasid_exit(void); 52219f6d2a6SOded Gabbay bool kfd_set_pasid_limit(unsigned int new_limit); 52319f6d2a6SOded Gabbay unsigned int kfd_get_pasid_limit(void); 52419f6d2a6SOded Gabbay unsigned int kfd_pasid_alloc(void); 52519f6d2a6SOded Gabbay void kfd_pasid_free(unsigned int pasid); 52619f6d2a6SOded Gabbay 52719f6d2a6SOded Gabbay /* Doorbells */ 52819f6d2a6SOded Gabbay void kfd_doorbell_init(struct kfd_dev *kfd); 52919f6d2a6SOded Gabbay int kfd_doorbell_mmap(struct kfd_process *process, struct vm_area_struct *vma); 53019f6d2a6SOded Gabbay u32 __iomem *kfd_get_kernel_doorbell(struct kfd_dev *kfd, 53119f6d2a6SOded Gabbay unsigned int *doorbell_off); 53219f6d2a6SOded Gabbay void kfd_release_kernel_doorbell(struct kfd_dev *kfd, u32 __iomem *db_addr); 53319f6d2a6SOded Gabbay u32 read_kernel_doorbell(u32 __iomem *db); 53419f6d2a6SOded Gabbay void write_kernel_doorbell(u32 __iomem *db, u32 value); 53519f6d2a6SOded Gabbay unsigned int kfd_queue_id_to_doorbell(struct kfd_dev *kfd, 53619f6d2a6SOded Gabbay struct kfd_process *process, 53719f6d2a6SOded Gabbay unsigned int queue_id); 53819f6d2a6SOded Gabbay 5396e81090bSOded Gabbay /* GTT Sub-Allocator */ 5406e81090bSOded Gabbay 5416e81090bSOded Gabbay int kfd_gtt_sa_allocate(struct kfd_dev *kfd, unsigned int size, 5426e81090bSOded Gabbay struct kfd_mem_obj **mem_obj); 5436e81090bSOded Gabbay 5446e81090bSOded Gabbay int kfd_gtt_sa_free(struct kfd_dev *kfd, struct kfd_mem_obj *mem_obj); 5456e81090bSOded Gabbay 5464a488a7aSOded Gabbay extern struct device *kfd_device; 5474a488a7aSOded Gabbay 5485b5c4e40SEvgeny Pinchuk /* Topology */ 5495b5c4e40SEvgeny Pinchuk int kfd_topology_init(void); 5505b5c4e40SEvgeny Pinchuk void kfd_topology_shutdown(void); 5515b5c4e40SEvgeny Pinchuk int kfd_topology_add_device(struct kfd_dev *gpu); 5525b5c4e40SEvgeny Pinchuk int kfd_topology_remove_device(struct kfd_dev *gpu); 5535b5c4e40SEvgeny Pinchuk struct kfd_dev *kfd_device_by_id(uint32_t gpu_id); 5545b5c4e40SEvgeny Pinchuk struct kfd_dev *kfd_device_by_pci_dev(const struct pci_dev *pdev); 5555b5c4e40SEvgeny Pinchuk struct kfd_dev *kfd_topology_enum_kfd_devices(uint8_t idx); 5565b5c4e40SEvgeny Pinchuk 5574a488a7aSOded Gabbay /* Interrupts */ 558b3f5e6b4SAndrew Lewycky void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry); 5594a488a7aSOded Gabbay 5604a488a7aSOded Gabbay /* Power Management */ 561b3f5e6b4SAndrew Lewycky void kgd2kfd_suspend(struct kfd_dev *kfd); 562b3f5e6b4SAndrew Lewycky int kgd2kfd_resume(struct kfd_dev *kfd); 5634a488a7aSOded Gabbay 56419f6d2a6SOded Gabbay /* amdkfd Apertures */ 56519f6d2a6SOded Gabbay int kfd_init_apertures(struct kfd_process *process); 56619f6d2a6SOded Gabbay 567ed6e6a34SBen Goz /* Queue Context Management */ 568241f24f8SBen Goz inline uint32_t lower_32(uint64_t x); 569241f24f8SBen Goz inline uint32_t upper_32(uint64_t x); 57077669eb8SBen Goz struct cik_sdma_rlc_registers *get_sdma_mqd(void *mqd); 57177669eb8SBen Goz inline uint32_t get_sdma_base_addr(struct cik_sdma_rlc_registers *m); 572241f24f8SBen Goz 573ed6e6a34SBen Goz int init_queue(struct queue **q, struct queue_properties properties); 574ed6e6a34SBen Goz void uninit_queue(struct queue *q); 57545102048SBen Goz void print_queue_properties(struct queue_properties *q); 576ed6e6a34SBen Goz void print_queue(struct queue *q); 577ed6e6a34SBen Goz 57864c7f8cfSBen Goz struct mqd_manager *mqd_manager_init(enum KFD_MQD_TYPE type, 57964c7f8cfSBen Goz struct kfd_dev *dev); 5804b8f589bSBen Goz struct mqd_manager *mqd_manager_init_cik(enum KFD_MQD_TYPE type, 5814b8f589bSBen Goz struct kfd_dev *dev); 5824b8f589bSBen Goz struct mqd_manager *mqd_manager_init_vi(enum KFD_MQD_TYPE type, 5834b8f589bSBen Goz struct kfd_dev *dev); 58464c7f8cfSBen Goz struct device_queue_manager *device_queue_manager_init(struct kfd_dev *dev); 58564c7f8cfSBen Goz void device_queue_manager_uninit(struct device_queue_manager *dqm); 586241f24f8SBen Goz struct kernel_queue *kernel_queue_init(struct kfd_dev *dev, 587241f24f8SBen Goz enum kfd_queue_type type); 588241f24f8SBen Goz void kernel_queue_uninit(struct kernel_queue *kq); 589241f24f8SBen Goz 59045102048SBen Goz /* Process Queue Manager */ 59145102048SBen Goz struct process_queue_node { 59245102048SBen Goz struct queue *q; 59345102048SBen Goz struct kernel_queue *kq; 59445102048SBen Goz struct list_head process_queue_list; 59545102048SBen Goz }; 59645102048SBen Goz 59745102048SBen Goz int pqm_init(struct process_queue_manager *pqm, struct kfd_process *p); 59845102048SBen Goz void pqm_uninit(struct process_queue_manager *pqm); 59945102048SBen Goz int pqm_create_queue(struct process_queue_manager *pqm, 60045102048SBen Goz struct kfd_dev *dev, 60145102048SBen Goz struct file *f, 60245102048SBen Goz struct queue_properties *properties, 60345102048SBen Goz unsigned int flags, 60445102048SBen Goz enum kfd_queue_type type, 60545102048SBen Goz unsigned int *qid); 60645102048SBen Goz int pqm_destroy_queue(struct process_queue_manager *pqm, unsigned int qid); 60745102048SBen Goz int pqm_update_queue(struct process_queue_manager *pqm, unsigned int qid, 60845102048SBen Goz struct queue_properties *p); 60945102048SBen Goz 610ed6e6a34SBen Goz /* Packet Manager */ 611ed6e6a34SBen Goz 612241f24f8SBen Goz #define KFD_HIQ_TIMEOUT (500) 613241f24f8SBen Goz 61464c7f8cfSBen Goz #define KFD_FENCE_COMPLETED (100) 61564c7f8cfSBen Goz #define KFD_FENCE_INIT (10) 616241f24f8SBen Goz #define KFD_UNMAP_LATENCY (150) 617241f24f8SBen Goz 618ed6e6a34SBen Goz struct packet_manager { 619ed6e6a34SBen Goz struct device_queue_manager *dqm; 620ed6e6a34SBen Goz struct kernel_queue *priv_queue; 621ed6e6a34SBen Goz struct mutex lock; 622ed6e6a34SBen Goz bool allocated; 623ed6e6a34SBen Goz struct kfd_mem_obj *ib_buffer_obj; 624ed6e6a34SBen Goz }; 625ed6e6a34SBen Goz 62664c7f8cfSBen Goz int pm_init(struct packet_manager *pm, struct device_queue_manager *dqm); 62764c7f8cfSBen Goz void pm_uninit(struct packet_manager *pm); 62864c7f8cfSBen Goz int pm_send_set_resources(struct packet_manager *pm, 62964c7f8cfSBen Goz struct scheduling_resources *res); 63064c7f8cfSBen Goz int pm_send_runlist(struct packet_manager *pm, struct list_head *dqm_queues); 63164c7f8cfSBen Goz int pm_send_query_status(struct packet_manager *pm, uint64_t fence_address, 63264c7f8cfSBen Goz uint32_t fence_value); 63364c7f8cfSBen Goz 63464c7f8cfSBen Goz int pm_send_unmap_queue(struct packet_manager *pm, enum kfd_queue_type type, 63564c7f8cfSBen Goz enum kfd_preempt_type_filter mode, 63664c7f8cfSBen Goz uint32_t filter_param, bool reset, 63764c7f8cfSBen Goz unsigned int sdma_engine); 63864c7f8cfSBen Goz 639241f24f8SBen Goz void pm_release_ib(struct packet_manager *pm); 640241f24f8SBen Goz 64119f6d2a6SOded Gabbay uint64_t kfd_get_number_elems(struct kfd_dev *kfd); 64219f6d2a6SOded Gabbay phys_addr_t kfd_get_process_doorbells(struct kfd_dev *dev, 64319f6d2a6SOded Gabbay struct kfd_process *process); 64419f6d2a6SOded Gabbay 6454a488a7aSOded Gabbay #endif 646