amdkfd: Add packet manager module (241f24f8) · Commits · 戴 / test

drivers/gpu/drm/amd/amdkfd/Makefile

+1 −1

Original line number	Diff line number	Diff line
		@@ -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_packet_manager.c

0 → 100644

+565 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright 2014 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/slab.h>
		#include <linux/mutex.h>
		#include "kfd_device_queue_manager.h"
		#include "kfd_kernel_queue.h"
		#include "kfd_priv.h"
		#include "kfd_pm4_headers.h"
		#include "kfd_pm4_opcodes.h"

		static inline void inc_wptr(unsigned int *wptr, unsigned int increment_bytes,
		unsigned int buffer_size_bytes)
		{
		unsigned int temp = *wptr + increment_bytes / sizeof(uint32_t);

		BUG_ON((temp * sizeof(uint32_t)) > buffer_size_bytes);
		*wptr = temp;
		}

		static unsigned int build_pm4_header(unsigned int opcode, size_t packet_size)
		{
		union PM4_MES_TYPE_3_HEADER header;

		header.u32all = 0;
		header.opcode = opcode;
		header.count = packet_size/sizeof(uint32_t) - 2;
		header.type = PM4_TYPE_3;

		return header.u32all;
		}

		static void pm_calc_rlib_size(struct packet_manager *pm,
		unsigned int *rlib_size,
		bool *over_subscription)
		{
		unsigned int process_count, queue_count;

		BUG_ON(!pm \|\| !rlib_size \|\| !over_subscription);

		process_count = pm->dqm->processes_count;
		queue_count = pm->dqm->queue_count;

		/* check if there is over subscription*/
		*over_subscription = false;
		if ((process_count > 1) \|\|
		queue_count > PIPE_PER_ME_CP_SCHEDULING * QUEUES_PER_PIPE) {
		*over_subscription = true;
		pr_debug("kfd: over subscribed runlist\n");
		}

		/* calculate run list ib allocation size */
		rlib_size = process_count sizeof(struct pm4_map_process) +
		queue_count * sizeof(struct pm4_map_queues);

		/*
		* Increase the allocation size in case we need a chained run list
		* when over subscription
		*/
		if (*over_subscription)
		*rlib_size += sizeof(struct pm4_runlist);

		pr_debug("kfd: runlist ib size %d\n", *rlib_size);
		}

		static int pm_allocate_runlist_ib(struct packet_manager *pm,
		unsigned int **rl_buffer,
		uint64_t *rl_gpu_buffer,
		unsigned int *rl_buffer_size,
		bool *is_over_subscription)
		{
		int retval;

		BUG_ON(!pm);
		BUG_ON(pm->allocated == true);
		BUG_ON(is_over_subscription == NULL);

		pm_calc_rlib_size(pm, rl_buffer_size, is_over_subscription);

		retval = kfd2kgd->allocate_mem(pm->dqm->dev->kgd,
		*rl_buffer_size,
		PAGE_SIZE,
		KFD_MEMPOOL_SYSTEM_WRITECOMBINE,
		(struct kgd_mem **) &pm->ib_buffer_obj);

		if (retval != 0) {
		pr_err("kfd: failed to allocate runlist IB\n");
		return retval;
		}

		(void *)rl_buffer = pm->ib_buffer_obj->cpu_ptr;
		*rl_gpu_buffer = pm->ib_buffer_obj->gpu_addr;

		memset(rl_buffer, 0, rl_buffer_size);
		pm->allocated = true;
		return retval;
		}

		static int pm_create_runlist(struct packet_manager pm, uint32_t buffer,
		uint64_t ib, size_t ib_size_in_dwords, bool chain)
		{
		struct pm4_runlist *packet;

		BUG_ON(!pm \|\| !buffer \|\| !ib);

		packet = (struct pm4_runlist *)buffer;

		memset(buffer, 0, sizeof(struct pm4_runlist));
		packet->header.u32all = build_pm4_header(IT_RUN_LIST,
		sizeof(struct pm4_runlist));

		packet->bitfields4.ib_size = ib_size_in_dwords;
		packet->bitfields4.chain = chain ? 1 : 0;
		packet->bitfields4.offload_polling = 0;
		packet->bitfields4.valid = 1;
		packet->ordinal2 = lower_32_bits(ib);
		packet->bitfields3.ib_base_hi = upper_32_bits(ib);

		return 0;
		}

		static int pm_create_map_process(struct packet_manager pm, uint32_t buffer,
		struct qcm_process_device *qpd)
		{
		struct pm4_map_process *packet;
		struct queue *cur;
		uint32_t num_queues;

		BUG_ON(!pm \|\| !buffer \|\| !qpd);

		packet = (struct pm4_map_process *)buffer;

		pr_debug("kfd: In func %s\n", __func__);

		memset(buffer, 0, sizeof(struct pm4_map_process));

		packet->header.u32all = build_pm4_header(IT_MAP_PROCESS,
		sizeof(struct pm4_map_process));
		packet->bitfields2.diq_enable = (qpd->is_debug) ? 1 : 0;
		packet->bitfields2.process_quantum = 1;
		packet->bitfields2.pasid = qpd->pqm->process->pasid;
		packet->bitfields3.page_table_base = qpd->page_table_base;
		packet->bitfields10.gds_size = qpd->gds_size;
		packet->bitfields10.num_gws = qpd->num_gws;
		packet->bitfields10.num_oac = qpd->num_oac;
		num_queues = 0;
		list_for_each_entry(cur, &qpd->queues_list, list)
		num_queues++;
		packet->bitfields10.num_queues = num_queues;

		packet->sh_mem_config = qpd->sh_mem_config;
		packet->sh_mem_bases = qpd->sh_mem_bases;
		packet->sh_mem_ape1_base = qpd->sh_mem_ape1_base;
		packet->sh_mem_ape1_limit = qpd->sh_mem_ape1_limit;

		packet->gds_addr_lo = lower_32_bits(qpd->gds_context_area);
		packet->gds_addr_hi = upper_32_bits(qpd->gds_context_area);

		return 0;
		}

		static int pm_create_map_queue(struct packet_manager pm, uint32_t buffer,
		struct queue *q)
		{
		struct pm4_map_queues *packet;

		BUG_ON(!pm \|\| !buffer \|\| !q);

		pr_debug("kfd: In func %s\n", __func__);

		packet = (struct pm4_map_queues *)buffer;
		memset(buffer, 0, sizeof(struct pm4_map_queues));

		packet->header.u32all = build_pm4_header(IT_MAP_QUEUES,
		sizeof(struct pm4_map_queues));
		packet->bitfields2.alloc_format =
		alloc_format__mes_map_queues__one_per_pipe;
		packet->bitfields2.num_queues = 1;
		packet->bitfields2.queue_sel =
		queue_sel__mes_map_queues__map_to_hws_determined_queue_slots;

		packet->bitfields2.vidmem = (q->properties.is_interop) ?
		vidmem__mes_map_queues__uses_video_memory :
		vidmem__mes_map_queues__uses_no_video_memory;

		switch (q->properties.type) {
		case KFD_QUEUE_TYPE_COMPUTE:
		case KFD_QUEUE_TYPE_DIQ:
		packet->bitfields2.engine_sel =
		engine_sel__mes_map_queues__compute;
		break;
		case KFD_QUEUE_TYPE_SDMA:
		packet->bitfields2.engine_sel =
		engine_sel__mes_map_queues__sdma0;
		break;
		default:
		BUG();
		break;
		}

		packet->mes_map_queues_ordinals[0].bitfields3.doorbell_offset =
		q->properties.doorbell_off;

		packet->mes_map_queues_ordinals[0].mqd_addr_lo =
		lower_32_bits(q->gart_mqd_addr);

		packet->mes_map_queues_ordinals[0].mqd_addr_hi =
		upper_32_bits(q->gart_mqd_addr);

		packet->mes_map_queues_ordinals[0].wptr_addr_lo =
		lower_32_bits((uint64_t)q->properties.write_ptr);

		packet->mes_map_queues_ordinals[0].wptr_addr_hi =
		upper_32_bits((uint64_t)q->properties.write_ptr);

		return 0;
		}

		static int pm_create_runlist_ib(struct packet_manager *pm,
		struct list_head *queues,
		uint64_t *rl_gpu_addr,
		size_t *rl_size_bytes)
		{
		unsigned int alloc_size_bytes;
		unsigned int *rl_buffer, rl_wptr, i;
		int retval, proccesses_mapped;
		struct device_process_node *cur;
		struct qcm_process_device *qpd;
		struct queue *q;
		struct kernel_queue *kq;
		bool is_over_subscription;

		BUG_ON(!pm \|\| !queues \|\| !rl_size_bytes \|\| !rl_gpu_addr);

		rl_wptr = retval = proccesses_mapped = 0;

		retval = pm_allocate_runlist_ib(pm, &rl_buffer, rl_gpu_addr,
		&alloc_size_bytes, &is_over_subscription);
		if (retval != 0)
		return retval;

		*rl_size_bytes = alloc_size_bytes;

		pr_debug("kfd: In func %s\n", __func__);
		pr_debug("kfd: building runlist ib process count: %d queues count %d\n",
		pm->dqm->processes_count, pm->dqm->queue_count);

		/* build the run list ib packet */
		list_for_each_entry(cur, queues, list) {
		qpd = cur->qpd;
		/* build map process packet */
		if (proccesses_mapped >= pm->dqm->processes_count) {
		pr_debug("kfd: not enough space left in runlist IB\n");
		pm_release_ib(pm);
		return -ENOMEM;
		}
		retval = pm_create_map_process(pm, &rl_buffer[rl_wptr], qpd);
		if (retval != 0)
		return retval;
		proccesses_mapped++;
		inc_wptr(&rl_wptr, sizeof(struct pm4_map_process),
		alloc_size_bytes);

		list_for_each_entry(kq, &qpd->priv_queue_list, list) {
		if (kq->queue->properties.is_active != true)
		continue;
		retval = pm_create_map_queue(pm, &rl_buffer[rl_wptr],
		kq->queue);
		if (retval != 0)
		return retval;
		inc_wptr(&rl_wptr, sizeof(struct pm4_map_queues),
		alloc_size_bytes);
		}

		list_for_each_entry(q, &qpd->queues_list, list) {
		if (q->properties.is_active != true)
		continue;
		retval = pm_create_map_queue(pm,
		&rl_buffer[rl_wptr], q);
		if (retval != 0)
		return retval;
		inc_wptr(&rl_wptr, sizeof(struct pm4_map_queues),
		alloc_size_bytes);
		}
		}

		pr_debug("kfd: finished map process and queues to runlist\n");

		if (is_over_subscription)
		pm_create_runlist(pm, &rl_buffer[rl_wptr], *rl_gpu_addr,
		alloc_size_bytes / sizeof(uint32_t), true);

		for (i = 0; i < alloc_size_bytes / sizeof(uint32_t); i++)
		pr_debug("0x%2X ", rl_buffer[i]);
		pr_debug("\n");

		return 0;
		}

		int pm_init(struct packet_manager pm, struct device_queue_manager dqm)
		{
		BUG_ON(!dqm);

		pm->dqm = dqm;
		mutex_init(&pm->lock);
		pm->priv_queue = kernel_queue_init(dqm->dev, KFD_QUEUE_TYPE_HIQ);
		if (pm->priv_queue == NULL) {
		mutex_destroy(&pm->lock);
		return -ENOMEM;
		}
		pm->allocated = false;

		return 0;
		}

		void pm_uninit(struct packet_manager *pm)
		{
		BUG_ON(!pm);

		mutex_destroy(&pm->lock);
		kernel_queue_uninit(pm->priv_queue);
		}

		int pm_send_set_resources(struct packet_manager *pm,
		struct scheduling_resources *res)
		{
		struct pm4_set_resources *packet;

		BUG_ON(!pm \|\| !res);

		pr_debug("kfd: In func %s\n", __func__);

		mutex_lock(&pm->lock);
		pm->priv_queue->acquire_packet_buffer(pm->priv_queue,
		sizeof(*packet) / sizeof(uint32_t),
		(unsigned int **)&packet);
		if (packet == NULL) {
		mutex_unlock(&pm->lock);
		pr_err("kfd: failed to allocate buffer on kernel queue\n");
		return -ENOMEM;
		}

		memset(packet, 0, sizeof(struct pm4_set_resources));
		packet->header.u32all = build_pm4_header(IT_SET_RESOURCES,
		sizeof(struct pm4_set_resources));

		packet->bitfields2.queue_type =
		queue_type__mes_set_resources__hsa_interface_queue_hiq;
		packet->bitfields2.vmid_mask = res->vmid_mask;
		packet->bitfields2.unmap_latency = KFD_UNMAP_LATENCY;
		packet->bitfields7.oac_mask = res->oac_mask;
		packet->bitfields8.gds_heap_base = res->gds_heap_base;
		packet->bitfields8.gds_heap_size = res->gds_heap_size;

		packet->gws_mask_lo = lower_32_bits(res->gws_mask);
		packet->gws_mask_hi = upper_32_bits(res->gws_mask);

		packet->queue_mask_lo = lower_32_bits(res->queue_mask);
		packet->queue_mask_hi = upper_32_bits(res->queue_mask);

		pm->priv_queue->submit_packet(pm->priv_queue);
		pm->priv_queue->sync_with_hw(pm->priv_queue, KFD_HIQ_TIMEOUT);

		mutex_unlock(&pm->lock);

		return 0;
		}

		int pm_send_runlist(struct packet_manager pm, struct list_head dqm_queues)
		{
		uint64_t rl_gpu_ib_addr;
		uint32_t *rl_buffer;
		size_t rl_ib_size, packet_size_dwords;
		int retval;

		BUG_ON(!pm \|\| !dqm_queues);

		retval = pm_create_runlist_ib(pm, dqm_queues, &rl_gpu_ib_addr,
		&rl_ib_size);
		if (retval != 0)
		goto fail_create_runlist_ib;

		pr_debug("kfd: runlist IB address: 0x%llX\n", rl_gpu_ib_addr);

		packet_size_dwords = sizeof(struct pm4_runlist) / sizeof(uint32_t);
		mutex_lock(&pm->lock);

		retval = pm->priv_queue->acquire_packet_buffer(pm->priv_queue,
		packet_size_dwords, &rl_buffer);
		if (retval != 0)
		goto fail_acquire_packet_buffer;

		retval = pm_create_runlist(pm, rl_buffer, rl_gpu_ib_addr,
		rl_ib_size / sizeof(uint32_t), false);
		if (retval != 0)
		goto fail_create_runlist;

		pm->priv_queue->submit_packet(pm->priv_queue);
		pm->priv_queue->sync_with_hw(pm->priv_queue, KFD_HIQ_TIMEOUT);

		mutex_unlock(&pm->lock);

		return retval;

		fail_create_runlist:
		pm->priv_queue->rollback_packet(pm->priv_queue);
		fail_acquire_packet_buffer:
		mutex_unlock(&pm->lock);
		fail_create_runlist_ib:
		if (pm->allocated == true)
		pm_release_ib(pm);
		return retval;
		}

		int pm_send_query_status(struct packet_manager *pm, uint64_t fence_address,
		uint32_t fence_value)
		{
		int retval;
		struct pm4_query_status *packet;

		BUG_ON(!pm \|\| !fence_address);

		mutex_lock(&pm->lock);
		retval = pm->priv_queue->acquire_packet_buffer(
		pm->priv_queue,
		sizeof(struct pm4_query_status) / sizeof(uint32_t),
		(unsigned int **)&packet);
		if (retval != 0)
		goto fail_acquire_packet_buffer;

		packet->header.u32all = build_pm4_header(IT_QUERY_STATUS,
		sizeof(struct pm4_query_status));

		packet->bitfields2.context_id = 0;
		packet->bitfields2.interrupt_sel =
		interrupt_sel__mes_query_status__completion_status;
		packet->bitfields2.command =
		command__mes_query_status__fence_only_after_write_ack;

		packet->addr_hi = upper_32_bits((uint64_t)fence_address);
		packet->addr_lo = lower_32_bits((uint64_t)fence_address);
		packet->data_hi = upper_32_bits((uint64_t)fence_value);
		packet->data_lo = lower_32_bits((uint64_t)fence_value);

		pm->priv_queue->submit_packet(pm->priv_queue);
		pm->priv_queue->sync_with_hw(pm->priv_queue, KFD_HIQ_TIMEOUT);
		mutex_unlock(&pm->lock);

		return 0;

		fail_acquire_packet_buffer:
		mutex_unlock(&pm->lock);
		return retval;
		}

		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)
		{
		int retval;
		uint32_t *buffer;
		struct pm4_unmap_queues *packet;

		BUG_ON(!pm);

		mutex_lock(&pm->lock);
		retval = pm->priv_queue->acquire_packet_buffer(
		pm->priv_queue,
		sizeof(struct pm4_unmap_queues) / sizeof(uint32_t),
		&buffer);
		if (retval != 0)
		goto err_acquire_packet_buffer;

		packet = (struct pm4_unmap_queues *)buffer;
		memset(buffer, 0, sizeof(struct pm4_unmap_queues));

		packet->header.u32all = build_pm4_header(IT_UNMAP_QUEUES,
		sizeof(struct pm4_unmap_queues));
		switch (type) {
		case KFD_QUEUE_TYPE_COMPUTE:
		case KFD_QUEUE_TYPE_DIQ:
		packet->bitfields2.engine_sel =
		engine_sel__mes_unmap_queues__compute;
		break;
		case KFD_QUEUE_TYPE_SDMA:
		packet->bitfields2.engine_sel =
		engine_sel__mes_unmap_queues__sdma0 + sdma_engine;
		break;
		default:
		BUG();
		break;
		}

		if (reset)
		packet->bitfields2.action =
		action__mes_unmap_queues__reset_queues;
		else
		packet->bitfields2.action =
		action__mes_unmap_queues__preempt_queues;

		switch (mode) {
		case KFD_PREEMPT_TYPE_FILTER_SINGLE_QUEUE:
		packet->bitfields2.queue_sel =
		queue_sel__mes_unmap_queues__perform_request_on_specified_queues;
		packet->bitfields2.num_queues = 1;
		packet->bitfields3b.doorbell_offset0 = filter_param;
		break;
		case KFD_PREEMPT_TYPE_FILTER_BY_PASID:
		packet->bitfields2.queue_sel =
		queue_sel__mes_unmap_queues__perform_request_on_pasid_queues;
		packet->bitfields3a.pasid = filter_param;
		break;
		case KFD_PREEMPT_TYPE_FILTER_ALL_QUEUES:
		packet->bitfields2.queue_sel =
		queue_sel__mes_unmap_queues__perform_request_on_all_active_queues;
		break;
		default:
		BUG();
		break;
		};

		pm->priv_queue->submit_packet(pm->priv_queue);
		pm->priv_queue->sync_with_hw(pm->priv_queue, KFD_HIQ_TIMEOUT);

		mutex_unlock(&pm->lock);
		return 0;

		err_acquire_packet_buffer:
		mutex_unlock(&pm->lock);
		return retval;
		}

		void pm_release_ib(struct packet_manager *pm)
		{
		BUG_ON(!pm);

		mutex_lock(&pm->lock);
		if (pm->allocated) {
		kfd2kgd->free_mem(pm->dqm->dev->kgd,
		(struct kgd_mem *) pm->ib_buffer_obj);
		pm->allocated = false;
		}
		mutex_unlock(&pm->lock);
		}

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

+75 −0

Original line number	Diff line number	Diff line
		@@ -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);

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