#define KFD_SYSFS_FILE_MODE 0444
+/*
+ * When working with cp scheduler we should assign the HIQ manually or via
+ * the radeon driver to a fixed hqd slot, here are the fixed HIQ hqd slot
+ * definitions for Kaveri. In Kaveri only the first ME queues participates
+ * in the cp scheduling taking that in mind we set the HIQ slot in the
+ * second ME.
+ */
+#define KFD_CIK_HIQ_PIPE 4
+#define KFD_CIK_HIQ_QUEUE 0
+
/* GPU ID hash width in bits */
#define KFD_GPU_ID_HASH_WIDTH 16
#define KFD_MAX_NUM_OF_QUEUES_PER_PROCESS_DEFAULT 128
#define KFD_MAX_NUM_OF_QUEUES_PER_PROCESS 1024
+#define KFD_KERNEL_QUEUE_SIZE 2048
+
+/* Kernel module parameter to specify the scheduling policy */
+extern int sched_policy;
+
+/**
+ * enum kfd_sched_policy
+ *
+ * @KFD_SCHED_POLICY_HWS: H/W scheduling policy known as command processor (cp)
+ * scheduling. In this scheduling mode we're using the firmware code to
+ * schedule the user mode queues and kernel queues such as HIQ and DIQ.
+ * the HIQ queue is used as a special queue that dispatches the configuration
+ * to the cp and the user mode queues list that are currently running.
+ * the DIQ queue is a debugging queue that dispatches debugging commands to the
+ * firmware.
+ * in this scheduling mode user mode queues over subscription feature is
+ * enabled.
+ *
+ * @KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION: The same as above but the over
+ * subscription feature disabled.
+ *
+ * @KFD_SCHED_POLICY_NO_HWS: no H/W scheduling policy is a mode which directly
+ * set the command processor registers and sets the queues "manually". This
+ * mode is used *ONLY* for debugging proposes.
+ *
+ */
+enum kfd_sched_policy {
+ KFD_SCHED_POLICY_HWS = 0,
+ KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION,
+ KFD_SCHED_POLICY_NO_HWS
+};
+
+enum cache_policy {
+ cache_policy_coherent,
+ cache_policy_noncoherent
+};
struct kfd_device_info {
unsigned int max_pasid_bits;
struct kgd2kfd_shared_resources shared_resources;
- bool init_complete;
+ void *interrupt_ring;
+ size_t interrupt_ring_size;
+ atomic_t interrupt_ring_rptr;
+ atomic_t interrupt_ring_wptr;
+ struct work_struct interrupt_work;
+ spinlock_t interrupt_lock;
+
+ /* QCM Device instance */
+ struct device_queue_manager *dqm;
+ bool init_complete;
+ /*
+ * Interrupts of interest to KFD are copied
+ * from the HW ring into a SW ring.
+ */
+ bool interrupts_active;
};
/* KGD2KFD callbacks */
void kfd_chardev_exit(void);
struct device *kfd_chardev(void);
+/**
+ * enum kfd_preempt_type_filter
+ *
+ * @KFD_PREEMPT_TYPE_FILTER_SINGLE_QUEUE: Preempts single queue.
+ *
+ * @KFD_PRERMPT_TYPE_FILTER_ALL_QUEUES: Preempts all queues in the
+ * running queues list.
+ *
+ * @KFD_PRERMPT_TYPE_FILTER_BY_PASID: Preempts queues that belongs to
+ * specific process.
+ *
+ */
+enum kfd_preempt_type_filter {
+ KFD_PREEMPT_TYPE_FILTER_SINGLE_QUEUE,
+ KFD_PREEMPT_TYPE_FILTER_ALL_QUEUES,
+ KFD_PREEMPT_TYPE_FILTER_BY_PASID
+};
+
+enum kfd_preempt_type {
+ KFD_PREEMPT_TYPE_WAVEFRONT,
+ KFD_PREEMPT_TYPE_WAVEFRONT_RESET
+};
+
+/**
+ * enum kfd_queue_type
+ *
+ * @KFD_QUEUE_TYPE_COMPUTE: Regular user mode queue type.
+ *
+ * @KFD_QUEUE_TYPE_SDMA: Sdma user mode queue type.
+ *
+ * @KFD_QUEUE_TYPE_HIQ: HIQ queue type.
+ *
+ * @KFD_QUEUE_TYPE_DIQ: DIQ queue type.
+ */
+enum kfd_queue_type {
+ KFD_QUEUE_TYPE_COMPUTE,
+ KFD_QUEUE_TYPE_SDMA,
+ KFD_QUEUE_TYPE_HIQ,
+ KFD_QUEUE_TYPE_DIQ
+};
+
+enum kfd_queue_format {
+ KFD_QUEUE_FORMAT_PM4,
+ KFD_QUEUE_FORMAT_AQL
+};
+
+/**
+ * struct queue_properties
+ *
+ * @type: The queue type.
+ *
+ * @queue_id: Queue identifier.
+ *
+ * @queue_address: Queue ring buffer address.
+ *
+ * @queue_size: Queue ring buffer size.
+ *
+ * @priority: Defines the queue priority relative to other queues in the
+ * process.
+ * This is just an indication and HW scheduling may override the priority as
+ * necessary while keeping the relative prioritization.
+ * the priority granularity is from 0 to f which f is the highest priority.
+ * currently all queues are initialized with the highest priority.
+ *
+ * @queue_percent: This field is partially implemented and currently a zero in
+ * this field defines that the queue is non active.
+ *
+ * @read_ptr: User space address which points to the number of dwords the
+ * cp read from the ring buffer. This field updates automatically by the H/W.
+ *
+ * @write_ptr: Defines the number of dwords written to the ring buffer.
+ *
+ * @doorbell_ptr: This field aim is to notify the H/W of new packet written to
+ * the queue ring buffer. This field should be similar to write_ptr and the user
+ * should update this field after he updated the write_ptr.
+ *
+ * @doorbell_off: The doorbell offset in the doorbell pci-bar.
+ *
+ * @is_interop: Defines if this is a interop queue. Interop queue means that the
+ * queue can access both graphics and compute resources.
+ *
+ * @is_active: Defines if the queue is active or not.
+ *
+ * @vmid: If the scheduling mode is no cp scheduling the field defines the vmid
+ * of the queue.
+ *
+ * This structure represents the queue properties for each queue no matter if
+ * it's user mode or kernel mode queue.
+ *
+ */
+struct queue_properties {
+ enum kfd_queue_type type;
+ enum kfd_queue_format format;
+ unsigned int queue_id;
+ uint64_t queue_address;
+ uint64_t queue_size;
+ uint32_t priority;
+ uint32_t queue_percent;
+ uint32_t *read_ptr;
+ uint32_t *write_ptr;
+ uint32_t __iomem *doorbell_ptr;
+ uint32_t doorbell_off;
+ bool is_interop;
+ bool is_active;
+ /* Not relevant for user mode queues in cp scheduling */
+ unsigned int vmid;
+};
+
+/**
+ * struct queue
+ *
+ * @list: Queue linked list.
+ *
+ * @mqd: The queue MQD.
+ *
+ * @mqd_mem_obj: The MQD local gpu memory object.
+ *
+ * @gart_mqd_addr: The MQD gart mc address.
+ *
+ * @properties: The queue properties.
+ *
+ * @mec: Used only in no cp scheduling mode and identifies to micro engine id
+ * that the queue should be execute on.
+ *
+ * @pipe: Used only in no cp scheduling mode and identifies the queue's pipe id.
+ *
+ * @queue: Used only in no cp scheduliong mode and identifies the queue's slot.
+ *
+ * @process: The kfd process that created this queue.
+ *
+ * @device: The kfd device that created this queue.
+ *
+ * This structure represents user mode compute queues.
+ * It contains all the necessary data to handle such queues.
+ *
+ */
+
+struct queue {
+ struct list_head list;
+ void *mqd;
+ struct kfd_mem_obj *mqd_mem_obj;
+ uint64_t gart_mqd_addr;
+ struct queue_properties properties;
+
+ uint32_t mec;
+ uint32_t pipe;
+ uint32_t queue;
+
+ struct kfd_process *process;
+ struct kfd_dev *device;
+};
+
+/*
+ * Please read the kfd_mqd_manager.h description.
+ */
+enum KFD_MQD_TYPE {
+ KFD_MQD_TYPE_CIK_COMPUTE = 0, /* for no cp scheduling */
+ KFD_MQD_TYPE_CIK_HIQ, /* for hiq */
+ KFD_MQD_TYPE_CIK_CP, /* for cp queues and diq */
+ KFD_MQD_TYPE_CIK_SDMA, /* for sdma queues */
+ KFD_MQD_TYPE_MAX
+};
+
+struct scheduling_resources {
+ unsigned int vmid_mask;
+ enum kfd_queue_type type;
+ uint64_t queue_mask;
+ uint64_t gws_mask;
+ uint32_t oac_mask;
+ uint32_t gds_heap_base;
+ uint32_t gds_heap_size;
+};
+
+struct process_queue_manager {
+ /* data */
+ struct kfd_process *process;
+ unsigned int num_concurrent_processes;
+ struct list_head queues;
+ unsigned long *queue_slot_bitmap;
+};
+
+struct qcm_process_device {
+ /* The Device Queue Manager that owns this data */
+ struct device_queue_manager *dqm;
+ struct process_queue_manager *pqm;
+ /* Device Queue Manager lock */
+ struct mutex *lock;
+ /* Queues list */
+ struct list_head queues_list;
+ struct list_head priv_queue_list;
+
+ unsigned int queue_count;
+ unsigned int vmid;
+ bool is_debug;
+ /*
+ * All the memory management data should be here too
+ */
+ uint64_t gds_context_area;
+ uint32_t sh_mem_config;
+ uint32_t sh_mem_bases;
+ uint32_t sh_mem_ape1_base;
+ uint32_t sh_mem_ape1_limit;
+ uint32_t page_table_base;
+ uint32_t gds_size;
+ uint32_t num_gws;
+ uint32_t num_oac;
+};
/* Data that is per-process-per device. */
struct kfd_process_device {
struct kfd_dev *dev;
+ /* per-process-per device QCM data structure */
+ struct qcm_process_device qpd;
+
/*Apertures*/
uint64_t lds_base;
uint64_t lds_limit;
bool bound;
};
+#define qpd_to_pdd(x) container_of(x, struct kfd_process_device, qpd)
+
/* Process data */
struct kfd_process {
/*
*/
struct list_head per_device_data;
+ struct process_queue_manager pqm;
+
/* The process's queues. */
size_t queue_array_size;
struct kfd_process *kfd_create_process(const struct task_struct *);
struct kfd_process *kfd_get_process(const struct task_struct *);
+struct kfd_process_device *kfd_bind_process_to_device(struct kfd_dev *dev,
+ struct kfd_process *p);
+void kfd_unbind_process_from_device(struct kfd_dev *dev, unsigned int pasid);
struct kfd_process_device *kfd_get_process_device_data(struct kfd_dev *dev,
struct kfd_process *p,
int create_pdd);
+/* Process device data iterator */
+struct kfd_process_device *kfd_get_first_process_device_data(struct kfd_process *p);
+struct kfd_process_device *kfd_get_next_process_device_data(struct kfd_process *p,
+ struct kfd_process_device *pdd);
+bool kfd_has_process_device_data(struct kfd_process *p);
+
/* PASIDs */
int kfd_pasid_init(void);
void kfd_pasid_exit(void);
struct kfd_dev *kfd_topology_enum_kfd_devices(uint8_t idx);
/* Interrupts */
-void kgd2kfd_interrupt(struct kfd_dev *dev, const void *ih_ring_entry);
+int kfd_interrupt_init(struct kfd_dev *dev);
+void kfd_interrupt_exit(struct kfd_dev *dev);
+void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry);
+bool enqueue_ih_ring_entry(struct kfd_dev *kfd, const void *ih_ring_entry);
/* Power Management */
-void kgd2kfd_suspend(struct kfd_dev *dev);
-int kgd2kfd_resume(struct kfd_dev *dev);
+void kgd2kfd_suspend(struct kfd_dev *kfd);
+int kgd2kfd_resume(struct kfd_dev *kfd);
/* amdkfd Apertures */
int kfd_init_apertures(struct kfd_process *process);
+/* Queue Context Management */
+inline uint32_t lower_32(uint64_t x);
+inline uint32_t upper_32(uint64_t x);
+
+int init_queue(struct queue **q, struct queue_properties properties);
+void uninit_queue(struct queue *q);
+void print_queue_properties(struct queue_properties *q);
+void print_queue(struct queue *q);
+
+struct mqd_manager *mqd_manager_init(enum KFD_MQD_TYPE type,
+ struct kfd_dev *dev);
+struct device_queue_manager *device_queue_manager_init(struct kfd_dev *dev);
+void device_queue_manager_uninit(struct device_queue_manager *dqm);
+struct kernel_queue *kernel_queue_init(struct kfd_dev *dev,
+ enum kfd_queue_type type);
+void kernel_queue_uninit(struct kernel_queue *kq);
+
+/* Process Queue Manager */
+struct process_queue_node {
+ struct queue *q;
+ struct kernel_queue *kq;
+ struct list_head process_queue_list;
+};
+
+int pqm_init(struct process_queue_manager *pqm, struct kfd_process *p);
+void pqm_uninit(struct process_queue_manager *pqm);
+int pqm_create_queue(struct process_queue_manager *pqm,
+ struct kfd_dev *dev,
+ struct file *f,
+ struct queue_properties *properties,
+ unsigned int flags,
+ enum kfd_queue_type type,
+ unsigned int *qid);
+int pqm_destroy_queue(struct process_queue_manager *pqm, unsigned int qid);
+int pqm_update_queue(struct process_queue_manager *pqm, unsigned int qid,
+ struct queue_properties *p);
+
+/* Packet Manager */
+
+#define KFD_HIQ_TIMEOUT (500)
+
+#define KFD_FENCE_COMPLETED (100)
+#define KFD_FENCE_INIT (10)
+#define KFD_UNMAP_LATENCY (150)
+
+struct packet_manager {
+ struct device_queue_manager *dqm;
+ struct kernel_queue *priv_queue;
+ struct mutex lock;
+ bool allocated;
+ struct kfd_mem_obj *ib_buffer_obj;
+};
+
+int pm_init(struct packet_manager *pm, struct device_queue_manager *dqm);
+void pm_uninit(struct packet_manager *pm);
+int pm_send_set_resources(struct packet_manager *pm,
+ struct scheduling_resources *res);
+int pm_send_runlist(struct packet_manager *pm, struct list_head *dqm_queues);
+int pm_send_query_status(struct packet_manager *pm, uint64_t fence_address,
+ uint32_t fence_value);
+
+int pm_send_unmap_queue(struct packet_manager *pm, enum kfd_queue_type type,
+ enum kfd_preempt_type_filter mode,
+ uint32_t filter_param, bool reset,
+ unsigned int sdma_engine);
+
+void pm_release_ib(struct packet_manager *pm);
+
uint64_t kfd_get_number_elems(struct kfd_dev *kfd);
phys_addr_t kfd_get_process_doorbells(struct kfd_dev *dev,
struct kfd_process *process);
projects / firefly-linux-kernel-4.4.55.git / blobdiff