amdkfd: Add packet manager module

The packet manager module builds PM4 packets for the sole use of the CP
scheduler. Those packets are used by the HIQ to submit runlists to the CP.

v3:

Removed include of cik_mqds.h
Changed lower_32/upper_32 calls to use linux macros
Used new gart allocation functions
Added documentation

v5:

Move amdkfd from drm/radeon/ to drm/amd/
Change format of mqd structure to match latest KV firmware
Add support for AQL queues creation to enable working with open-source HSA
runtime
Always chain runlist if you have more than 1 process or if you have
over-subscription over the number of queues.
Various fixes (typos, style)
Signed-off-by: Ben Goz <ben.goz@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>

drivers/gpu/drm/amd/amdkfd/Makefile

@@ -7,6 +7,6 @@ ccflags-y := -Iinclude/drm -Idrivers/gpu/drm/amd/include/
 amdkfd-y	:= kfd_module.o kfd_device.o kfd_chardev.o kfd_topology.o \
 		kfd_pasid.o kfd_doorbell.o kfd_flat_memory.o \
 		kfd_process.o kfd_queue.o kfd_mqd_manager.o \
-		kfd_kernel_queue.o
+		kfd_kernel_queue.o kfd_packet_manager.o
 
 obj-$(CONFIG_HSA_AMD)	+= amdkfd.o

drivers/gpu/drm/amd/amdkfd/kfd_priv.h

@@ -167,6 +167,23 @@ int kfd_chardev_init(void);
 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,
@@ -313,6 +330,51 @@ enum KFD_MQD_TYPE {
 	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 {
 	/*
@@ -434,12 +496,23 @@ int kgd2kfd_resume(struct kfd_dev *dev);
 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(struct queue *q);
 
+struct kernel_queue *kernel_queue_init(struct kfd_dev *dev,
+					enum kfd_queue_type type);
+void kernel_queue_uninit(struct kernel_queue *kq);
+
 /* Packet Manager */
 
+#define KFD_HIQ_TIMEOUT (500)
+
+#define KFD_UNMAP_LATENCY (150)
+
 struct packet_manager {
 	struct device_queue_manager *dqm;
 	struct kernel_queue *priv_queue;
@@ -448,6 +521,8 @@ struct packet_manager {
 	struct kfd_mem_obj *ib_buffer_obj;
 };
 
+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);