drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c - linux - Git at Google

 // 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.
  *
  */

 #include <linux/printk.h>
 #include <linux/slab.h>
 #include <linux/mm_types.h>

 #include "kfd_priv.h"
 #include "kfd_mqd_manager.h"
 #include "vi_structs.h"
 #include "gca/gfx_8_0_sh_mask.h"
 #include "gca/gfx_8_0_enum.h"
 #include "oss/oss_3_0_sh_mask.h"

 #define CP_MQD_CONTROL__PRIV_STATE__SHIFT 0x8

 static inline struct vi_mqd *get_mqd(void *mqd)
 {
 	return (struct vi_mqd *)mqd;
 }

 static inline struct vi_sdma_mqd *get_sdma_mqd(void *mqd)
 {
 	return (struct vi_sdma_mqd *)mqd;
 }

 static void update_cu_mask(struct mqd_manager *mm, void *mqd,
 			struct mqd_update_info *minfo)
 {
 	struct vi_mqd *m;
 	uint32_t se_mask[4] = {0}; /* 4 is the max # of SEs */

 	if (!minfo || !minfo->cu_mask.ptr)
 		return;

 	mqd_symmetrically_map_cu_mask(mm,
 		minfo->cu_mask.ptr, minfo->cu_mask.count, se_mask, 0);

 	m = get_mqd(mqd);
 	m->compute_static_thread_mgmt_se0 = se_mask[0];
 	m->compute_static_thread_mgmt_se1 = se_mask[1];
 	m->compute_static_thread_mgmt_se2 = se_mask[2];
 	m->compute_static_thread_mgmt_se3 = se_mask[3];

 	pr_debug("Update cu mask to %#x %#x %#x %#x\n",
 		m->compute_static_thread_mgmt_se0,
 		m->compute_static_thread_mgmt_se1,
 		m->compute_static_thread_mgmt_se2,
 		m->compute_static_thread_mgmt_se3);
 }

 static void set_priority(struct vi_mqd *m, struct queue_properties *q)
 {
 	m->cp_hqd_pipe_priority = pipe_priority_map[q->priority];
 	m->cp_hqd_queue_priority = q->priority;
 }

 static struct kfd_mem_obj *allocate_mqd(struct kfd_node *kfd,
 					struct queue_properties *q)
 {
 	struct kfd_mem_obj *mqd_mem_obj;

 	if (kfd_gtt_sa_allocate(kfd, sizeof(struct vi_mqd),
 			&mqd_mem_obj))
 		return NULL;

 	return mqd_mem_obj;
 }

 static void init_mqd(struct mqd_manager *mm, void **mqd,
 			struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
 			struct queue_properties *q)
 {
 	uint64_t addr;
 	struct vi_mqd *m;

 	m = (struct vi_mqd *) mqd_mem_obj->cpu_ptr;
 	addr = mqd_mem_obj->gpu_addr;

 	memset(m, 0, sizeof(struct vi_mqd));

 	m->header = 0xC0310800;
 	m->compute_pipelinestat_enable = 1;
 	m->compute_static_thread_mgmt_se0 = 0xFFFFFFFF;
 	m->compute_static_thread_mgmt_se1 = 0xFFFFFFFF;
 	m->compute_static_thread_mgmt_se2 = 0xFFFFFFFF;
 	m->compute_static_thread_mgmt_se3 = 0xFFFFFFFF;

 	m->cp_hqd_persistent_state = CP_HQD_PERSISTENT_STATE__PRELOAD_REQ_MASK |
 			0x53 << CP_HQD_PERSISTENT_STATE__PRELOAD_SIZE__SHIFT;

 	m->cp_mqd_control = 1 << CP_MQD_CONTROL__PRIV_STATE__SHIFT |
 			MTYPE_UC << CP_MQD_CONTROL__MTYPE__SHIFT;

 	m->cp_mqd_base_addr_lo        = lower_32_bits(addr);
 	m->cp_mqd_base_addr_hi        = upper_32_bits(addr);

 	m->cp_hqd_quantum = 1 << CP_HQD_QUANTUM__QUANTUM_EN__SHIFT |
 			1 << CP_HQD_QUANTUM__QUANTUM_SCALE__SHIFT |
 			1 << CP_HQD_QUANTUM__QUANTUM_DURATION__SHIFT;

 	set_priority(m, q);
 	m->cp_hqd_eop_rptr = 1 << CP_HQD_EOP_RPTR__INIT_FETCHER__SHIFT;

 	if (q->format == KFD_QUEUE_FORMAT_AQL)
 		m->cp_hqd_iq_rptr = 1;

 	if (q->tba_addr) {
 		m->compute_tba_lo = lower_32_bits(q->tba_addr >> 8);
 		m->compute_tba_hi = upper_32_bits(q->tba_addr >> 8);
 		m->compute_tma_lo = lower_32_bits(q->tma_addr >> 8);
 		m->compute_tma_hi = upper_32_bits(q->tma_addr >> 8);
 		m->compute_pgm_rsrc2 |=
 			(1 << COMPUTE_PGM_RSRC2__TRAP_PRESENT__SHIFT);
 	}

 	if (mm->dev->kfd->cwsr_enabled && q->ctx_save_restore_area_address) {
 		m->cp_hqd_persistent_state |=
 			(1 << CP_HQD_PERSISTENT_STATE__QSWITCH_MODE__SHIFT);
 		m->cp_hqd_ctx_save_base_addr_lo =
 			lower_32_bits(q->ctx_save_restore_area_address);
 		m->cp_hqd_ctx_save_base_addr_hi =
 			upper_32_bits(q->ctx_save_restore_area_address);
 		m->cp_hqd_ctx_save_size = q->ctx_save_restore_area_size;
 		m->cp_hqd_cntl_stack_size = q->ctl_stack_size;
 		m->cp_hqd_cntl_stack_offset = q->ctl_stack_size;
 		m->cp_hqd_wg_state_offset = q->ctl_stack_size;
 	}

 	*mqd = m;
 	if (gart_addr)
 		*gart_addr = addr;
 	mm->update_mqd(mm, m, q, NULL);
 }

 static int load_mqd(struct mqd_manager *mm, void *mqd,
 			uint32_t pipe_id, uint32_t queue_id,
 			struct queue_properties *p, struct mm_struct *mms)
 {
 	/* AQL write pointer counts in 64B packets, PM4/CP counts in dwords. */
 	uint32_t wptr_shift = (p->format == KFD_QUEUE_FORMAT_AQL ? 4 : 0);
 	uint32_t wptr_mask = (uint32_t)((p->queue_size / 4) - 1);

 	return mm->dev->kfd2kgd->hqd_load(mm->dev->adev, mqd, pipe_id, queue_id,
 					  (uint32_t __user *)p->write_ptr,
 					  wptr_shift, wptr_mask, mms, 0);
 }

 static void __update_mqd(struct mqd_manager *mm, void *mqd,
 			struct queue_properties *q, struct mqd_update_info *minfo,
 			unsigned int mtype, unsigned int atc_bit)
 {
 	struct vi_mqd *m;

 	m = get_mqd(mqd);

 	m->cp_hqd_pq_control = 5 << CP_HQD_PQ_CONTROL__RPTR_BLOCK_SIZE__SHIFT |
 			atc_bit << CP_HQD_PQ_CONTROL__PQ_ATC__SHIFT |
 			mtype << CP_HQD_PQ_CONTROL__MTYPE__SHIFT;
 	m->cp_hqd_pq_control |=	order_base_2(q->queue_size / 4) - 1;
 	pr_debug("cp_hqd_pq_control 0x%x\n", m->cp_hqd_pq_control);

 	m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8);
 	m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8);

 	m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
 	m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
 	m->cp_hqd_pq_wptr_poll_addr_lo = lower_32_bits((uint64_t)q->write_ptr);
 	m->cp_hqd_pq_wptr_poll_addr_hi = upper_32_bits((uint64_t)q->write_ptr);

 	m->cp_hqd_pq_doorbell_control =
 		q->doorbell_off <<
 			CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_OFFSET__SHIFT;
 	pr_debug("cp_hqd_pq_doorbell_control 0x%x\n",
 			m->cp_hqd_pq_doorbell_control);

 	m->cp_hqd_eop_control = atc_bit << CP_HQD_EOP_CONTROL__EOP_ATC__SHIFT |
 			mtype << CP_HQD_EOP_CONTROL__MTYPE__SHIFT;

 	m->cp_hqd_ib_control = atc_bit << CP_HQD_IB_CONTROL__IB_ATC__SHIFT |
 			3 << CP_HQD_IB_CONTROL__MIN_IB_AVAIL_SIZE__SHIFT |
 			mtype << CP_HQD_IB_CONTROL__MTYPE__SHIFT;

 	/*
 	 * HW does not clamp this field correctly. Maximum EOP queue size
 	 * is constrained by per-SE EOP done signal count, which is 8-bit.
 	 * Limit is 0xFF EOP entries (= 0x7F8 dwords). CP will not submit
 	 * more than (EOP entry count - 1) so a queue size of 0x800 dwords
 	 * is safe, giving a maximum field value of 0xA.
 	 */
 	m->cp_hqd_eop_control |= min(0xA,
 		order_base_2(q->eop_ring_buffer_size / 4) - 1);
 	m->cp_hqd_eop_base_addr_lo =
 			lower_32_bits(q->eop_ring_buffer_address >> 8);
 	m->cp_hqd_eop_base_addr_hi =
 			upper_32_bits(q->eop_ring_buffer_address >> 8);

 	m->cp_hqd_iq_timer = atc_bit << CP_HQD_IQ_TIMER__IQ_ATC__SHIFT |
 			mtype << CP_HQD_IQ_TIMER__MTYPE__SHIFT;

 	m->cp_hqd_vmid = q->vmid;

 	if (q->format == KFD_QUEUE_FORMAT_AQL) {
 		m->cp_hqd_pq_control |= CP_HQD_PQ_CONTROL__NO_UPDATE_RPTR_MASK |
 				2 << CP_HQD_PQ_CONTROL__SLOT_BASED_WPTR__SHIFT;
 	}

 	if (mm->dev->kfd->cwsr_enabled && q->ctx_save_restore_area_address)
 		m->cp_hqd_ctx_save_control =
 			atc_bit << CP_HQD_CTX_SAVE_CONTROL__ATC__SHIFT |
 			mtype << CP_HQD_CTX_SAVE_CONTROL__MTYPE__SHIFT;

 	update_cu_mask(mm, mqd, minfo);
 	set_priority(m, q);

 	q->is_active = QUEUE_IS_ACTIVE(*q);
 }

 static bool check_preemption_failed(struct mqd_manager *mm, void *mqd)
 {
 	struct vi_mqd *m = (struct vi_mqd *)mqd;

 	return kfd_check_hiq_mqd_doorbell_id(mm->dev, m->queue_doorbell_id0, 0);
 }

 static void update_mqd(struct mqd_manager *mm, void *mqd,
 		       struct queue_properties *q,
 		       struct mqd_update_info *minfo)
 {
 	__update_mqd(mm, mqd, q, minfo, MTYPE_UC, 0);
 }

 static int get_wave_state(struct mqd_manager *mm, void *mqd,
 			  struct queue_properties *q,
 			  void __user *ctl_stack,
 			  u32 *ctl_stack_used_size,
 			  u32 *save_area_used_size)
 {
 	struct vi_mqd *m;

 	m = get_mqd(mqd);

 	*ctl_stack_used_size = m->cp_hqd_cntl_stack_size -
 		m->cp_hqd_cntl_stack_offset;
 	*save_area_used_size = m->cp_hqd_wg_state_offset -
 		m->cp_hqd_cntl_stack_size;

 	/* Control stack is not copied to user mode for GFXv8 because
 	 * it's part of the context save area that is already
 	 * accessible to user mode
 	 */

 	return 0;
 }

 static void get_checkpoint_info(struct mqd_manager *mm, void *mqd, u32 *ctl_stack_size)
 {
 	/* Control stack is stored in user mode */
 	*ctl_stack_size = 0;
 }

 static void checkpoint_mqd(struct mqd_manager *mm, void *mqd, void *mqd_dst, void *ctl_stack_dst)
 {
 	struct vi_mqd *m;

 	m = get_mqd(mqd);

 	memcpy(mqd_dst, m, sizeof(struct vi_mqd));
 }

 static void restore_mqd(struct mqd_manager *mm, void **mqd,
 			struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
 			struct queue_properties *qp,
 			const void *mqd_src,
 			const void *ctl_stack_src, const u32 ctl_stack_size)
 {
 	uint64_t addr;
 	struct vi_mqd *m;

 	m = (struct vi_mqd *) mqd_mem_obj->cpu_ptr;
 	addr = mqd_mem_obj->gpu_addr;

 	memcpy(m, mqd_src, sizeof(*m));

 	*mqd = m;
 	if (gart_addr)
 		*gart_addr = addr;

 	m->cp_hqd_pq_doorbell_control =
 		qp->doorbell_off <<
 			CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_OFFSET__SHIFT;
 	pr_debug("cp_hqd_pq_doorbell_control 0x%x\n",
 			m->cp_hqd_pq_doorbell_control);

 	qp->is_active = 0;
 }

 static void init_mqd_hiq(struct mqd_manager *mm, void **mqd,
 			struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
 			struct queue_properties *q)
 {
 	struct vi_mqd *m;

 	init_mqd(mm, mqd, mqd_mem_obj, gart_addr, q);

 	m = get_mqd(*mqd);

 	m->cp_hqd_pq_control |= 1 << CP_HQD_PQ_CONTROL__PRIV_STATE__SHIFT |
 			1 << CP_HQD_PQ_CONTROL__KMD_QUEUE__SHIFT;
 }

 static void update_mqd_hiq(struct mqd_manager *mm, void *mqd,
 			struct queue_properties *q,
 			struct mqd_update_info *minfo)
 {
 	__update_mqd(mm, mqd, q, minfo, MTYPE_UC, 0);
 }

 static void init_mqd_sdma(struct mqd_manager *mm, void **mqd,
 		struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
 		struct queue_properties *q)
 {
 	struct vi_sdma_mqd *m;

 	m = (struct vi_sdma_mqd *) mqd_mem_obj->cpu_ptr;

 	memset(m, 0, sizeof(struct vi_sdma_mqd));

 	*mqd = m;
 	if (gart_addr)
 		*gart_addr = mqd_mem_obj->gpu_addr;

 	mm->update_mqd(mm, m, q, NULL);
 }

 static void update_mqd_sdma(struct mqd_manager *mm, void *mqd,
 			struct queue_properties *q,
 			struct mqd_update_info *minfo)
 {
 	struct vi_sdma_mqd *m;

 	m = get_sdma_mqd(mqd);
 	m->sdmax_rlcx_rb_cntl = order_base_2(q->queue_size / 4)
 		<< SDMA0_RLC0_RB_CNTL__RB_SIZE__SHIFT |
 		q->vmid << SDMA0_RLC0_RB_CNTL__RB_VMID__SHIFT |
 		1 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_ENABLE__SHIFT |
 		6 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_TIMER__SHIFT;

 	m->sdmax_rlcx_rb_base = lower_32_bits(q->queue_address >> 8);
 	m->sdmax_rlcx_rb_base_hi = upper_32_bits(q->queue_address >> 8);
 	m->sdmax_rlcx_rb_rptr_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
 	m->sdmax_rlcx_rb_rptr_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
 	m->sdmax_rlcx_doorbell =
 		q->doorbell_off << SDMA0_RLC0_DOORBELL__OFFSET__SHIFT;

 	m->sdmax_rlcx_virtual_addr = q->sdma_vm_addr;

 	m->sdma_engine_id = q->sdma_engine_id;
 	m->sdma_queue_id = q->sdma_queue_id;

 	q->is_active = QUEUE_IS_ACTIVE(*q);
 }

 static void checkpoint_mqd_sdma(struct mqd_manager *mm,
 				void *mqd,
 				void *mqd_dst,
 				void *ctl_stack_dst)
 {
 	struct vi_sdma_mqd *m;

 	m = get_sdma_mqd(mqd);

 	memcpy(mqd_dst, m, sizeof(struct vi_sdma_mqd));
 }

 static void restore_mqd_sdma(struct mqd_manager *mm, void **mqd,
 			     struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
 			     struct queue_properties *qp,
 			     const void *mqd_src,
 			     const void *ctl_stack_src, const u32 ctl_stack_size)
 {
 	uint64_t addr;
 	struct vi_sdma_mqd *m;

 	m = (struct vi_sdma_mqd *) mqd_mem_obj->cpu_ptr;
 	addr = mqd_mem_obj->gpu_addr;

 	memcpy(m, mqd_src, sizeof(*m));

 	m->sdmax_rlcx_doorbell =
 		qp->doorbell_off << SDMA0_RLC0_DOORBELL__OFFSET__SHIFT;

 	*mqd = m;
 	if (gart_addr)
 		*gart_addr = addr;

 	qp->is_active = 0;
 }

 #if defined(CONFIG_DEBUG_FS)


 static int debugfs_show_mqd(struct seq_file *m, void *data)
 {
 	seq_hex_dump(m, "    ", DUMP_PREFIX_OFFSET, 32, 4,
 		     data, sizeof(struct vi_mqd), false);
 	return 0;
 }

 static int debugfs_show_mqd_sdma(struct seq_file *m, void *data)
 {
 	seq_hex_dump(m, "    ", DUMP_PREFIX_OFFSET, 32, 4,
 		     data, sizeof(struct vi_sdma_mqd), false);
 	return 0;
 }

 #endif

 struct mqd_manager *mqd_manager_init_vi(enum KFD_MQD_TYPE type,
 		struct kfd_node *dev)
 {
 	struct mqd_manager *mqd;

 	if (WARN_ON(type >= KFD_MQD_TYPE_MAX))
 		return NULL;

 	mqd = kzalloc(sizeof(*mqd), GFP_KERNEL);
 	if (!mqd)
 		return NULL;

 	mqd->dev = dev;

 	switch (type) {
 	case KFD_MQD_TYPE_CP:
 		mqd->allocate_mqd = allocate_mqd;
 		mqd->init_mqd = init_mqd;
 		mqd->free_mqd = kfd_free_mqd_cp;
 		mqd->load_mqd = load_mqd;
 		mqd->update_mqd = update_mqd;
 		mqd->destroy_mqd = kfd_destroy_mqd_cp;
 		mqd->is_occupied = kfd_is_occupied_cp;
 		mqd->get_wave_state = get_wave_state;
 		mqd->get_checkpoint_info = get_checkpoint_info;
 		mqd->checkpoint_mqd = checkpoint_mqd;
 		mqd->restore_mqd = restore_mqd;
 		mqd->mqd_size = sizeof(struct vi_mqd);
 #if defined(CONFIG_DEBUG_FS)
 		mqd->debugfs_show_mqd = debugfs_show_mqd;
 #endif
 		break;
 	case KFD_MQD_TYPE_HIQ:
 		mqd->allocate_mqd = allocate_hiq_mqd;
 		mqd->init_mqd = init_mqd_hiq;
 		mqd->free_mqd = free_mqd_hiq_sdma;
 		mqd->load_mqd = load_mqd;
 		mqd->update_mqd = update_mqd_hiq;
 		mqd->destroy_mqd = kfd_destroy_mqd_cp;
 		mqd->is_occupied = kfd_is_occupied_cp;
 		mqd->mqd_size = sizeof(struct vi_mqd);
 		mqd->mqd_stride = kfd_mqd_stride;
 #if defined(CONFIG_DEBUG_FS)
 		mqd->debugfs_show_mqd = debugfs_show_mqd;
 #endif
 		mqd->check_preemption_failed = check_preemption_failed;
 		break;
 	case KFD_MQD_TYPE_DIQ:
 		mqd->allocate_mqd = allocate_mqd;
 		mqd->init_mqd = init_mqd_hiq;
 		mqd->free_mqd = kfd_free_mqd_cp;
 		mqd->load_mqd = load_mqd;
 		mqd->update_mqd = update_mqd_hiq;
 		mqd->destroy_mqd = kfd_destroy_mqd_cp;
 		mqd->is_occupied = kfd_is_occupied_cp;
 		mqd->mqd_size = sizeof(struct vi_mqd);
 		mqd->mqd_stride = kfd_mqd_stride;
 #if defined(CONFIG_DEBUG_FS)
 		mqd->debugfs_show_mqd = debugfs_show_mqd;
 #endif
 		break;
 	case KFD_MQD_TYPE_SDMA:
 		mqd->allocate_mqd = allocate_sdma_mqd;
 		mqd->init_mqd = init_mqd_sdma;
 		mqd->free_mqd = free_mqd_hiq_sdma;
 		mqd->load_mqd = kfd_load_mqd_sdma;
 		mqd->update_mqd = update_mqd_sdma;
 		mqd->destroy_mqd = kfd_destroy_mqd_sdma;
 		mqd->is_occupied = kfd_is_occupied_sdma;
 		mqd->checkpoint_mqd = checkpoint_mqd_sdma;
 		mqd->restore_mqd = restore_mqd_sdma;
 		mqd->mqd_size = sizeof(struct vi_sdma_mqd);
 		mqd->mqd_stride = kfd_mqd_stride;
 #if defined(CONFIG_DEBUG_FS)
 		mqd->debugfs_show_mqd = debugfs_show_mqd_sdma;
 #endif
 		break;
 	default:
 		kfree(mqd);
 		return NULL;
 	}

 	return mqd;
 }
	// 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.
	*
	*/

	#include <linux/printk.h>
	#include <linux/slab.h>
	#include <linux/mm_types.h>

	#include "kfd_priv.h"
	#include "kfd_mqd_manager.h"
	#include "vi_structs.h"
	#include "gca/gfx_8_0_sh_mask.h"
	#include "gca/gfx_8_0_enum.h"
	#include "oss/oss_3_0_sh_mask.h"

	#define CP_MQD_CONTROL__PRIV_STATE__SHIFT 0x8

	static inline struct vi_mqd get_mqd(void mqd)
	{
	return (struct vi_mqd *)mqd;
	}

	static inline struct vi_sdma_mqd get_sdma_mqd(void mqd)
	{
	return (struct vi_sdma_mqd *)mqd;
	}

	static void update_cu_mask(struct mqd_manager mm, void mqd,
	struct mqd_update_info *minfo)
	{
	struct vi_mqd *m;
	uint32_t se_mask[4] = {0}; /* 4 is the max # of SEs */

	if (!minfo \|\| !minfo->cu_mask.ptr)
	return;

	mqd_symmetrically_map_cu_mask(mm,
	minfo->cu_mask.ptr, minfo->cu_mask.count, se_mask, 0);

	m = get_mqd(mqd);
	m->compute_static_thread_mgmt_se0 = se_mask[0];
	m->compute_static_thread_mgmt_se1 = se_mask[1];
	m->compute_static_thread_mgmt_se2 = se_mask[2];
	m->compute_static_thread_mgmt_se3 = se_mask[3];

	pr_debug("Update cu mask to %#x %#x %#x %#x\n",
	m->compute_static_thread_mgmt_se0,
	m->compute_static_thread_mgmt_se1,
	m->compute_static_thread_mgmt_se2,
	m->compute_static_thread_mgmt_se3);
	}

	static void set_priority(struct vi_mqd m, struct queue_properties q)
	{
	m->cp_hqd_pipe_priority = pipe_priority_map[q->priority];
	m->cp_hqd_queue_priority = q->priority;
	}

	static struct kfd_mem_obj allocate_mqd(struct kfd_node kfd,
	struct queue_properties *q)
	{
	struct kfd_mem_obj *mqd_mem_obj;

	if (kfd_gtt_sa_allocate(kfd, sizeof(struct vi_mqd),
	&mqd_mem_obj))
	return NULL;

	return mqd_mem_obj;
	}

	static void init_mqd(struct mqd_manager mm, void *mqd,
	struct kfd_mem_obj mqd_mem_obj, uint64_t gart_addr,
	struct queue_properties *q)
	{
	uint64_t addr;
	struct vi_mqd *m;

	m = (struct vi_mqd *) mqd_mem_obj->cpu_ptr;
	addr = mqd_mem_obj->gpu_addr;

	memset(m, 0, sizeof(struct vi_mqd));

	m->header = 0xC0310800;
	m->compute_pipelinestat_enable = 1;
	m->compute_static_thread_mgmt_se0 = 0xFFFFFFFF;
	m->compute_static_thread_mgmt_se1 = 0xFFFFFFFF;
	m->compute_static_thread_mgmt_se2 = 0xFFFFFFFF;
	m->compute_static_thread_mgmt_se3 = 0xFFFFFFFF;

	m->cp_hqd_persistent_state = CP_HQD_PERSISTENT_STATE__PRELOAD_REQ_MASK \|
	0x53 << CP_HQD_PERSISTENT_STATE__PRELOAD_SIZE__SHIFT;

	m->cp_mqd_control = 1 << CP_MQD_CONTROL__PRIV_STATE__SHIFT \|
	MTYPE_UC << CP_MQD_CONTROL__MTYPE__SHIFT;

	m->cp_mqd_base_addr_lo = lower_32_bits(addr);
	m->cp_mqd_base_addr_hi = upper_32_bits(addr);

	m->cp_hqd_quantum = 1 << CP_HQD_QUANTUM__QUANTUM_EN__SHIFT \|
	1 << CP_HQD_QUANTUM__QUANTUM_SCALE__SHIFT \|
	1 << CP_HQD_QUANTUM__QUANTUM_DURATION__SHIFT;

	set_priority(m, q);
	m->cp_hqd_eop_rptr = 1 << CP_HQD_EOP_RPTR__INIT_FETCHER__SHIFT;

	if (q->format == KFD_QUEUE_FORMAT_AQL)
	m->cp_hqd_iq_rptr = 1;

	if (q->tba_addr) {
	m->compute_tba_lo = lower_32_bits(q->tba_addr >> 8);
	m->compute_tba_hi = upper_32_bits(q->tba_addr >> 8);
	m->compute_tma_lo = lower_32_bits(q->tma_addr >> 8);
	m->compute_tma_hi = upper_32_bits(q->tma_addr >> 8);
	m->compute_pgm_rsrc2 \|=
	(1 << COMPUTE_PGM_RSRC2__TRAP_PRESENT__SHIFT);
	}

	if (mm->dev->kfd->cwsr_enabled && q->ctx_save_restore_area_address) {
	m->cp_hqd_persistent_state \|=
	(1 << CP_HQD_PERSISTENT_STATE__QSWITCH_MODE__SHIFT);
	m->cp_hqd_ctx_save_base_addr_lo =
	lower_32_bits(q->ctx_save_restore_area_address);
	m->cp_hqd_ctx_save_base_addr_hi =
	upper_32_bits(q->ctx_save_restore_area_address);
	m->cp_hqd_ctx_save_size = q->ctx_save_restore_area_size;
	m->cp_hqd_cntl_stack_size = q->ctl_stack_size;
	m->cp_hqd_cntl_stack_offset = q->ctl_stack_size;
	m->cp_hqd_wg_state_offset = q->ctl_stack_size;
	}

	*mqd = m;
	if (gart_addr)
	*gart_addr = addr;
	mm->update_mqd(mm, m, q, NULL);
	}

	static int load_mqd(struct mqd_manager mm, void mqd,
	uint32_t pipe_id, uint32_t queue_id,
	struct queue_properties p, struct mm_struct mms)
	{
	/* AQL write pointer counts in 64B packets, PM4/CP counts in dwords. */
	uint32_t wptr_shift = (p->format == KFD_QUEUE_FORMAT_AQL ? 4 : 0);
	uint32_t wptr_mask = (uint32_t)((p->queue_size / 4) - 1);

	return mm->dev->kfd2kgd->hqd_load(mm->dev->adev, mqd, pipe_id, queue_id,
	(uint32_t __user *)p->write_ptr,
	wptr_shift, wptr_mask, mms, 0);
	}

	static void __update_mqd(struct mqd_manager mm, void mqd,
	struct queue_properties q, struct mqd_update_info minfo,
	unsigned int mtype, unsigned int atc_bit)
	{
	struct vi_mqd *m;

	m = get_mqd(mqd);

	m->cp_hqd_pq_control = 5 << CP_HQD_PQ_CONTROL__RPTR_BLOCK_SIZE__SHIFT \|
	atc_bit << CP_HQD_PQ_CONTROL__PQ_ATC__SHIFT \|
	mtype << CP_HQD_PQ_CONTROL__MTYPE__SHIFT;
	m->cp_hqd_pq_control \|= order_base_2(q->queue_size / 4) - 1;
	pr_debug("cp_hqd_pq_control 0x%x\n", m->cp_hqd_pq_control);

	m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8);
	m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8);

	m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
	m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
	m->cp_hqd_pq_wptr_poll_addr_lo = lower_32_bits((uint64_t)q->write_ptr);
	m->cp_hqd_pq_wptr_poll_addr_hi = upper_32_bits((uint64_t)q->write_ptr);

	m->cp_hqd_pq_doorbell_control =
	q->doorbell_off <<
	CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_OFFSET__SHIFT;
	pr_debug("cp_hqd_pq_doorbell_control 0x%x\n",
	m->cp_hqd_pq_doorbell_control);

	m->cp_hqd_eop_control = atc_bit << CP_HQD_EOP_CONTROL__EOP_ATC__SHIFT \|
	mtype << CP_HQD_EOP_CONTROL__MTYPE__SHIFT;

	m->cp_hqd_ib_control = atc_bit << CP_HQD_IB_CONTROL__IB_ATC__SHIFT \|
	3 << CP_HQD_IB_CONTROL__MIN_IB_AVAIL_SIZE__SHIFT \|
	mtype << CP_HQD_IB_CONTROL__MTYPE__SHIFT;

	/*
	* HW does not clamp this field correctly. Maximum EOP queue size
	* is constrained by per-SE EOP done signal count, which is 8-bit.
	* Limit is 0xFF EOP entries (= 0x7F8 dwords). CP will not submit
	* more than (EOP entry count - 1) so a queue size of 0x800 dwords
	* is safe, giving a maximum field value of 0xA.
	*/
	m->cp_hqd_eop_control \|= min(0xA,
	order_base_2(q->eop_ring_buffer_size / 4) - 1);
	m->cp_hqd_eop_base_addr_lo =
	lower_32_bits(q->eop_ring_buffer_address >> 8);
	m->cp_hqd_eop_base_addr_hi =
	upper_32_bits(q->eop_ring_buffer_address >> 8);

	m->cp_hqd_iq_timer = atc_bit << CP_HQD_IQ_TIMER__IQ_ATC__SHIFT \|
	mtype << CP_HQD_IQ_TIMER__MTYPE__SHIFT;

	m->cp_hqd_vmid = q->vmid;

	if (q->format == KFD_QUEUE_FORMAT_AQL) {
	m->cp_hqd_pq_control \|= CP_HQD_PQ_CONTROL__NO_UPDATE_RPTR_MASK \|
	2 << CP_HQD_PQ_CONTROL__SLOT_BASED_WPTR__SHIFT;
	}

	if (mm->dev->kfd->cwsr_enabled && q->ctx_save_restore_area_address)
	m->cp_hqd_ctx_save_control =
	atc_bit << CP_HQD_CTX_SAVE_CONTROL__ATC__SHIFT \|
	mtype << CP_HQD_CTX_SAVE_CONTROL__MTYPE__SHIFT;

	update_cu_mask(mm, mqd, minfo);
	set_priority(m, q);

	q->is_active = QUEUE_IS_ACTIVE(*q);
	}

	static bool check_preemption_failed(struct mqd_manager mm, void mqd)
	{
	struct vi_mqd m = (struct vi_mqd )mqd;

	return kfd_check_hiq_mqd_doorbell_id(mm->dev, m->queue_doorbell_id0, 0);
	}

	static void update_mqd(struct mqd_manager mm, void mqd,
	struct queue_properties *q,
	struct mqd_update_info *minfo)
	{
	__update_mqd(mm, mqd, q, minfo, MTYPE_UC, 0);
	}

	static int get_wave_state(struct mqd_manager mm, void mqd,
	struct queue_properties *q,
	void __user *ctl_stack,
	u32 *ctl_stack_used_size,
	u32 *save_area_used_size)
	{
	struct vi_mqd *m;

	m = get_mqd(mqd);

	*ctl_stack_used_size = m->cp_hqd_cntl_stack_size -
	m->cp_hqd_cntl_stack_offset;
	*save_area_used_size = m->cp_hqd_wg_state_offset -
	m->cp_hqd_cntl_stack_size;

	/* Control stack is not copied to user mode for GFXv8 because
	* it's part of the context save area that is already
	* accessible to user mode
	*/

	return 0;
	}

	static void get_checkpoint_info(struct mqd_manager mm, void mqd, u32 *ctl_stack_size)
	{
	/* Control stack is stored in user mode */
	*ctl_stack_size = 0;
	}

	static void checkpoint_mqd(struct mqd_manager mm, void mqd, void mqd_dst, void ctl_stack_dst)
	{
	struct vi_mqd *m;

	m = get_mqd(mqd);

	memcpy(mqd_dst, m, sizeof(struct vi_mqd));
	}

	static void restore_mqd(struct mqd_manager mm, void *mqd,
	struct kfd_mem_obj mqd_mem_obj, uint64_t gart_addr,
	struct queue_properties *qp,
	const void *mqd_src,
	const void *ctl_stack_src, const u32 ctl_stack_size)
	{
	uint64_t addr;
	struct vi_mqd *m;

	m = (struct vi_mqd *) mqd_mem_obj->cpu_ptr;
	addr = mqd_mem_obj->gpu_addr;

	memcpy(m, mqd_src, sizeof(*m));

	*mqd = m;
	if (gart_addr)
	*gart_addr = addr;

	m->cp_hqd_pq_doorbell_control =
	qp->doorbell_off <<
	CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_OFFSET__SHIFT;
	pr_debug("cp_hqd_pq_doorbell_control 0x%x\n",
	m->cp_hqd_pq_doorbell_control);

	qp->is_active = 0;
	}

	static void init_mqd_hiq(struct mqd_manager mm, void *mqd,
	struct kfd_mem_obj mqd_mem_obj, uint64_t gart_addr,
	struct queue_properties *q)
	{
	struct vi_mqd *m;

	init_mqd(mm, mqd, mqd_mem_obj, gart_addr, q);

	m = get_mqd(*mqd);

	m->cp_hqd_pq_control \|= 1 << CP_HQD_PQ_CONTROL__PRIV_STATE__SHIFT \|
	1 << CP_HQD_PQ_CONTROL__KMD_QUEUE__SHIFT;
	}

	static void update_mqd_hiq(struct mqd_manager mm, void mqd,
	struct queue_properties *q,
	struct mqd_update_info *minfo)
	{
	__update_mqd(mm, mqd, q, minfo, MTYPE_UC, 0);
	}

	static void init_mqd_sdma(struct mqd_manager mm, void *mqd,
	struct kfd_mem_obj mqd_mem_obj, uint64_t gart_addr,
	struct queue_properties *q)
	{
	struct vi_sdma_mqd *m;

	m = (struct vi_sdma_mqd *) mqd_mem_obj->cpu_ptr;

	memset(m, 0, sizeof(struct vi_sdma_mqd));

	*mqd = m;
	if (gart_addr)
	*gart_addr = mqd_mem_obj->gpu_addr;

	mm->update_mqd(mm, m, q, NULL);
	}

	static void update_mqd_sdma(struct mqd_manager mm, void mqd,
	struct queue_properties *q,
	struct mqd_update_info *minfo)
	{
	struct vi_sdma_mqd *m;

	m = get_sdma_mqd(mqd);
	m->sdmax_rlcx_rb_cntl = order_base_2(q->queue_size / 4)
	<< SDMA0_RLC0_RB_CNTL__RB_SIZE__SHIFT \|
	q->vmid << SDMA0_RLC0_RB_CNTL__RB_VMID__SHIFT \|
	1 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_ENABLE__SHIFT \|
	6 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_TIMER__SHIFT;

	m->sdmax_rlcx_rb_base = lower_32_bits(q->queue_address >> 8);
	m->sdmax_rlcx_rb_base_hi = upper_32_bits(q->queue_address >> 8);
	m->sdmax_rlcx_rb_rptr_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
	m->sdmax_rlcx_rb_rptr_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
	m->sdmax_rlcx_doorbell =
	q->doorbell_off << SDMA0_RLC0_DOORBELL__OFFSET__SHIFT;

	m->sdmax_rlcx_virtual_addr = q->sdma_vm_addr;

	m->sdma_engine_id = q->sdma_engine_id;
	m->sdma_queue_id = q->sdma_queue_id;

	q->is_active = QUEUE_IS_ACTIVE(*q);
	}

	static void checkpoint_mqd_sdma(struct mqd_manager *mm,
	void *mqd,
	void *mqd_dst,
	void *ctl_stack_dst)
	{
	struct vi_sdma_mqd *m;

	m = get_sdma_mqd(mqd);

	memcpy(mqd_dst, m, sizeof(struct vi_sdma_mqd));
	}

	static void restore_mqd_sdma(struct mqd_manager mm, void *mqd,
	struct kfd_mem_obj mqd_mem_obj, uint64_t gart_addr,
	struct queue_properties *qp,
	const void *mqd_src,
	const void *ctl_stack_src, const u32 ctl_stack_size)
	{
	uint64_t addr;
	struct vi_sdma_mqd *m;

	m = (struct vi_sdma_mqd *) mqd_mem_obj->cpu_ptr;
	addr = mqd_mem_obj->gpu_addr;

	memcpy(m, mqd_src, sizeof(*m));

	m->sdmax_rlcx_doorbell =
	qp->doorbell_off << SDMA0_RLC0_DOORBELL__OFFSET__SHIFT;

	*mqd = m;
	if (gart_addr)
	*gart_addr = addr;

	qp->is_active = 0;
	}

	#if defined(CONFIG_DEBUG_FS)


	static int debugfs_show_mqd(struct seq_file m, void data)
	{
	seq_hex_dump(m, " ", DUMP_PREFIX_OFFSET, 32, 4,
	data, sizeof(struct vi_mqd), false);
	return 0;
	}

	static int debugfs_show_mqd_sdma(struct seq_file m, void data)
	{
	seq_hex_dump(m, " ", DUMP_PREFIX_OFFSET, 32, 4,
	data, sizeof(struct vi_sdma_mqd), false);
	return 0;
	}

	#endif

	struct mqd_manager *mqd_manager_init_vi(enum KFD_MQD_TYPE type,
	struct kfd_node *dev)
	{
	struct mqd_manager *mqd;

	if (WARN_ON(type >= KFD_MQD_TYPE_MAX))
	return NULL;

	mqd = kzalloc(sizeof(*mqd), GFP_KERNEL);
	if (!mqd)
	return NULL;

	mqd->dev = dev;

	switch (type) {
	case KFD_MQD_TYPE_CP:
	mqd->allocate_mqd = allocate_mqd;
	mqd->init_mqd = init_mqd;
	mqd->free_mqd = kfd_free_mqd_cp;
	mqd->load_mqd = load_mqd;
	mqd->update_mqd = update_mqd;
	mqd->destroy_mqd = kfd_destroy_mqd_cp;
	mqd->is_occupied = kfd_is_occupied_cp;
	mqd->get_wave_state = get_wave_state;
	mqd->get_checkpoint_info = get_checkpoint_info;
	mqd->checkpoint_mqd = checkpoint_mqd;
	mqd->restore_mqd = restore_mqd;
	mqd->mqd_size = sizeof(struct vi_mqd);
	#if defined(CONFIG_DEBUG_FS)
	mqd->debugfs_show_mqd = debugfs_show_mqd;
	#endif
	break;
	case KFD_MQD_TYPE_HIQ:
	mqd->allocate_mqd = allocate_hiq_mqd;
	mqd->init_mqd = init_mqd_hiq;
	mqd->free_mqd = free_mqd_hiq_sdma;
	mqd->load_mqd = load_mqd;
	mqd->update_mqd = update_mqd_hiq;
	mqd->destroy_mqd = kfd_destroy_mqd_cp;
	mqd->is_occupied = kfd_is_occupied_cp;
	mqd->mqd_size = sizeof(struct vi_mqd);
	mqd->mqd_stride = kfd_mqd_stride;
	#if defined(CONFIG_DEBUG_FS)
	mqd->debugfs_show_mqd = debugfs_show_mqd;
	#endif
	mqd->check_preemption_failed = check_preemption_failed;
	break;
	case KFD_MQD_TYPE_DIQ:
	mqd->allocate_mqd = allocate_mqd;
	mqd->init_mqd = init_mqd_hiq;
	mqd->free_mqd = kfd_free_mqd_cp;
	mqd->load_mqd = load_mqd;
	mqd->update_mqd = update_mqd_hiq;
	mqd->destroy_mqd = kfd_destroy_mqd_cp;
	mqd->is_occupied = kfd_is_occupied_cp;
	mqd->mqd_size = sizeof(struct vi_mqd);
	mqd->mqd_stride = kfd_mqd_stride;
	#if defined(CONFIG_DEBUG_FS)
	mqd->debugfs_show_mqd = debugfs_show_mqd;
	#endif
	break;
	case KFD_MQD_TYPE_SDMA:
	mqd->allocate_mqd = allocate_sdma_mqd;
	mqd->init_mqd = init_mqd_sdma;
	mqd->free_mqd = free_mqd_hiq_sdma;
	mqd->load_mqd = kfd_load_mqd_sdma;
	mqd->update_mqd = update_mqd_sdma;
	mqd->destroy_mqd = kfd_destroy_mqd_sdma;
	mqd->is_occupied = kfd_is_occupied_sdma;
	mqd->checkpoint_mqd = checkpoint_mqd_sdma;
	mqd->restore_mqd = restore_mqd_sdma;
	mqd->mqd_size = sizeof(struct vi_sdma_mqd);
	mqd->mqd_stride = kfd_mqd_stride;
	#if defined(CONFIG_DEBUG_FS)
	mqd->debugfs_show_mqd = debugfs_show_mqd_sdma;
	#endif
	break;
	default:
	kfree(mqd);
	return NULL;
	}

	return mqd;
	}