Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 337 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
new file mode 100644
index 000000000..cf7e18258
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
@@ -0,0 +1,337 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+/*
+ * Copyright 2014-2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef KFD_DEVICE_QUEUE_MANAGER_H_
+#define KFD_DEVICE_QUEUE_MANAGER_H_
+
+#include <linux/rwsem.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/sched/mm.h>
+#include "kfd_priv.h"
+#include "kfd_mqd_manager.h"
+
+
+#define VMID_NUM 16
+
+#define KFD_MES_PROCESS_QUANTUM		100000
+#define KFD_MES_GANG_QUANTUM		10000
+#define USE_DEFAULT_GRACE_PERIOD 0xffffffff
+
+struct device_process_node {
+	struct qcm_process_device *qpd;
+	struct list_head list;
+};
+
+union SQ_CMD_BITS {
+	struct {
+		uint32_t cmd:3;
+		uint32_t:1;
+		uint32_t mode:3;
+		uint32_t check_vmid:1;
+		uint32_t trap_id:3;
+		uint32_t:5;
+		uint32_t wave_id:4;
+		uint32_t simd_id:2;
+		uint32_t:2;
+		uint32_t queue_id:3;
+		uint32_t:1;
+		uint32_t vm_id:4;
+	} bitfields, bits;
+	uint32_t u32All;
+	signed int i32All;
+	float f32All;
+};
+
+union GRBM_GFX_INDEX_BITS {
+	struct {
+		uint32_t instance_index:8;
+		uint32_t sh_index:8;
+		uint32_t se_index:8;
+		uint32_t:5;
+		uint32_t sh_broadcast_writes:1;
+		uint32_t instance_broadcast_writes:1;
+		uint32_t se_broadcast_writes:1;
+	} bitfields, bits;
+	uint32_t u32All;
+	signed int i32All;
+	float f32All;
+};
+
+/**
+ * struct device_queue_manager_ops
+ *
+ * @create_queue: Queue creation routine.
+ *
+ * @destroy_queue: Queue destruction routine.
+ *
+ * @update_queue: Queue update routine.
+ *
+ * @exeute_queues: Dispatches the queues list to the H/W.
+ *
+ * @register_process: This routine associates a specific process with device.
+ *
+ * @unregister_process: destroys the associations between process to device.
+ *
+ * @initialize: Initializes the pipelines and memory module for that device.
+ *
+ * @start: Initializes the resources/modules the device needs for queues
+ * execution. This function is called on device initialization and after the
+ * system woke up after suspension.
+ *
+ * @stop: This routine stops execution of all the active queue running on the
+ * H/W and basically this function called on system suspend.
+ *
+ * @uninitialize: Destroys all the device queue manager resources allocated in
+ * initialize routine.
+ *
+ * @create_kernel_queue: Creates kernel queue. Used for debug queue.
+ *
+ * @destroy_kernel_queue: Destroys kernel queue. Used for debug queue.
+ *
+ * @set_cache_memory_policy: Sets memory policy (cached/ non cached) for the
+ * memory apertures.
+ *
+ * @process_termination: Clears all process queues belongs to that device.
+ *
+ * @evict_process_queues: Evict all active queues of a process
+ *
+ * @restore_process_queues: Restore all evicted queues of a process
+ *
+ * @get_wave_state: Retrieves context save state and optionally copies the
+ * control stack, if kept in the MQD, to the given userspace address.
+ *
+ * @reset_queues: reset queues which consume RAS poison
+ * @get_queue_checkpoint_info: Retrieves queue size information for CRIU checkpoint.
+ *
+ * @checkpoint_mqd: checkpoint queue MQD contents for CRIU.
+ */
+
+struct device_queue_manager_ops {
+	int	(*create_queue)(struct device_queue_manager *dqm,
+				struct queue *q,
+				struct qcm_process_device *qpd,
+				const struct kfd_criu_queue_priv_data *qd,
+				const void *restore_mqd,
+				const void *restore_ctl_stack);
+
+	int	(*destroy_queue)(struct device_queue_manager *dqm,
+				struct qcm_process_device *qpd,
+				struct queue *q);
+
+	int	(*update_queue)(struct device_queue_manager *dqm,
+				struct queue *q, struct mqd_update_info *minfo);
+
+	int	(*register_process)(struct device_queue_manager *dqm,
+					struct qcm_process_device *qpd);
+
+	int	(*unregister_process)(struct device_queue_manager *dqm,
+					struct qcm_process_device *qpd);
+
+	int	(*initialize)(struct device_queue_manager *dqm);
+	int	(*start)(struct device_queue_manager *dqm);
+	int	(*stop)(struct device_queue_manager *dqm);
+	void	(*pre_reset)(struct device_queue_manager *dqm);
+	void	(*uninitialize)(struct device_queue_manager *dqm);
+	int	(*create_kernel_queue)(struct device_queue_manager *dqm,
+					struct kernel_queue *kq,
+					struct qcm_process_device *qpd);
+
+	void	(*destroy_kernel_queue)(struct device_queue_manager *dqm,
+					struct kernel_queue *kq,
+					struct qcm_process_device *qpd);
+
+	bool	(*set_cache_memory_policy)(struct device_queue_manager *dqm,
+					   struct qcm_process_device *qpd,
+					   enum cache_policy default_policy,
+					   enum cache_policy alternate_policy,
+					   void __user *alternate_aperture_base,
+					   uint64_t alternate_aperture_size);
+
+	int (*process_termination)(struct device_queue_manager *dqm,
+			struct qcm_process_device *qpd);
+
+	int (*evict_process_queues)(struct device_queue_manager *dqm,
+				    struct qcm_process_device *qpd);
+	int (*restore_process_queues)(struct device_queue_manager *dqm,
+				      struct qcm_process_device *qpd);
+
+	int	(*get_wave_state)(struct device_queue_manager *dqm,
+				  struct queue *q,
+				  void __user *ctl_stack,
+				  u32 *ctl_stack_used_size,
+				  u32 *save_area_used_size);
+
+	int (*reset_queues)(struct device_queue_manager *dqm,
+					uint16_t pasid);
+	void	(*get_queue_checkpoint_info)(struct device_queue_manager *dqm,
+				  const struct queue *q, u32 *mqd_size,
+				  u32 *ctl_stack_size);
+
+	int	(*checkpoint_mqd)(struct device_queue_manager *dqm,
+				  const struct queue *q,
+				  void *mqd,
+				  void *ctl_stack);
+};
+
+struct device_queue_manager_asic_ops {
+	int	(*update_qpd)(struct device_queue_manager *dqm,
+					struct qcm_process_device *qpd);
+	bool	(*set_cache_memory_policy)(struct device_queue_manager *dqm,
+					   struct qcm_process_device *qpd,
+					   enum cache_policy default_policy,
+					   enum cache_policy alternate_policy,
+					   void __user *alternate_aperture_base,
+					   uint64_t alternate_aperture_size);
+	void	(*init_sdma_vm)(struct device_queue_manager *dqm,
+				struct queue *q,
+				struct qcm_process_device *qpd);
+	struct mqd_manager *	(*mqd_manager_init)(enum KFD_MQD_TYPE type,
+				 struct kfd_node *dev);
+};
+
+/**
+ * struct device_queue_manager
+ *
+ * This struct is a base class for the kfd queues scheduler in the
+ * device level. The device base class should expose the basic operations
+ * for queue creation and queue destruction. This base class hides the
+ * scheduling mode of the driver and the specific implementation of the
+ * concrete device. This class is the only class in the queues scheduler
+ * that configures the H/W.
+ *
+ */
+
+struct device_queue_manager {
+	struct device_queue_manager_ops ops;
+	struct device_queue_manager_asic_ops asic_ops;
+
+	struct mqd_manager	*mqd_mgrs[KFD_MQD_TYPE_MAX];
+	struct packet_manager	packet_mgr;
+	struct kfd_node		*dev;
+	struct mutex		lock_hidden; /* use dqm_lock/unlock(dqm) */
+	struct list_head	queues;
+	unsigned int		saved_flags;
+	unsigned int		processes_count;
+	unsigned int		active_queue_count;
+	unsigned int		active_cp_queue_count;
+	unsigned int		gws_queue_count;
+	unsigned int		total_queue_count;
+	unsigned int		next_pipe_to_allocate;
+	unsigned int		*allocated_queues;
+	DECLARE_BITMAP(sdma_bitmap, KFD_MAX_SDMA_QUEUES);
+	DECLARE_BITMAP(xgmi_sdma_bitmap, KFD_MAX_SDMA_QUEUES);
+	/* the pasid mapping for each kfd vmid */
+	uint16_t		vmid_pasid[VMID_NUM];
+	uint64_t		pipelines_addr;
+	uint64_t		fence_gpu_addr;
+	uint64_t		*fence_addr;
+	struct kfd_mem_obj	*fence_mem;
+	bool			active_runlist;
+	int			sched_policy;
+	uint32_t		trap_debug_vmid;
+
+	/* hw exception  */
+	bool			is_hws_hang;
+	bool			is_resetting;
+	struct work_struct	hw_exception_work;
+	struct kfd_mem_obj	hiq_sdma_mqd;
+	bool			sched_running;
+
+	/* used for GFX 9.4.3 only */
+	uint32_t		current_logical_xcc_start;
+
+	uint32_t		wait_times;
+
+	wait_queue_head_t	destroy_wait;
+};
+
+void device_queue_manager_init_cik(
+		struct device_queue_manager_asic_ops *asic_ops);
+void device_queue_manager_init_vi(
+		struct device_queue_manager_asic_ops *asic_ops);
+void device_queue_manager_init_v9(
+		struct device_queue_manager_asic_ops *asic_ops);
+void device_queue_manager_init_v10(
+		struct device_queue_manager_asic_ops *asic_ops);
+void device_queue_manager_init_v11(
+		struct device_queue_manager_asic_ops *asic_ops);
+void program_sh_mem_settings(struct device_queue_manager *dqm,
+					struct qcm_process_device *qpd);
+unsigned int get_cp_queues_num(struct device_queue_manager *dqm);
+unsigned int get_queues_per_pipe(struct device_queue_manager *dqm);
+unsigned int get_pipes_per_mec(struct device_queue_manager *dqm);
+unsigned int get_num_sdma_queues(struct device_queue_manager *dqm);
+unsigned int get_num_xgmi_sdma_queues(struct device_queue_manager *dqm);
+int reserve_debug_trap_vmid(struct device_queue_manager *dqm,
+			struct qcm_process_device *qpd);
+int release_debug_trap_vmid(struct device_queue_manager *dqm,
+			struct qcm_process_device *qpd);
+int suspend_queues(struct kfd_process *p,
+			uint32_t num_queues,
+			uint32_t grace_period,
+			uint64_t exception_clear_mask,
+			uint32_t *usr_queue_id_array);
+int resume_queues(struct kfd_process *p,
+		uint32_t num_queues,
+		uint32_t *usr_queue_id_array);
+void set_queue_snapshot_entry(struct queue *q,
+			      uint64_t exception_clear_mask,
+			      struct kfd_queue_snapshot_entry *qss_entry);
+int debug_lock_and_unmap(struct device_queue_manager *dqm);
+int debug_map_and_unlock(struct device_queue_manager *dqm);
+int debug_refresh_runlist(struct device_queue_manager *dqm);
+
+static inline unsigned int get_sh_mem_bases_32(struct kfd_process_device *pdd)
+{
+	return (pdd->lds_base >> 16) & 0xFF;
+}
+
+static inline unsigned int
+get_sh_mem_bases_nybble_64(struct kfd_process_device *pdd)
+{
+	return (pdd->lds_base >> 60) & 0x0E;
+}
+
+/* The DQM lock can be taken in MMU notifiers. Make sure no reclaim-FS
+ * happens while holding this lock anywhere to prevent deadlocks when
+ * an MMU notifier runs in reclaim-FS context.
+ */
+static inline void dqm_lock(struct device_queue_manager *dqm)
+{
+	mutex_lock(&dqm->lock_hidden);
+	dqm->saved_flags = memalloc_noreclaim_save();
+}
+static inline void dqm_unlock(struct device_queue_manager *dqm)
+{
+	memalloc_noreclaim_restore(dqm->saved_flags);
+	mutex_unlock(&dqm->lock_hidden);
+}
+
+static inline int read_sdma_queue_counter(uint64_t __user *q_rptr, uint64_t *val)
+{
+	/* SDMA activity counter is stored at queue's RPTR + 0x8 location. */
+	return get_user(*val, q_rptr + 1);
+}
+#endif /* KFD_DEVICE_QUEUE_MANAGER_H_ */