/* 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_KERNEL_QUEUE_H_
#define KFD_KERNEL_QUEUE_H_
#include <linux/list.h>
#include <linux/types.h>
#include "kfd_priv.h"
/**
* kq_acquire_packet_buffer : Returns a pointer to the location in the kernel
* queue ring buffer where the calling function can write its packet . It is
* Guaranteed that there is enough space for that packet . It also updates the
* pending write pointer to that location so subsequent calls to
* acquire_packet_buffer will get a correct write pointer
*
* kq_submit_packet : Update the write pointer and doorbell of a kernel queue .
*
* kq_rollback_packet : This routine is called if we failed to build an acquired
* packet for some reason . It just overwrites the pending wptr with the current
* one
*
*/
int kq_acquire_packet_buffer(struct kernel_queue *kq,
size_t packet_size_in_dwords,
unsigned int **buffer_ptr);
int kq_submit_packet(struct kernel_queue *kq);
void kq_rollback_packet(struct kernel_queue *kq);
struct kernel_queue {
/* data */
struct kfd_node *dev;
struct mqd_manager *mqd_mgr;
struct queue *queue;
uint64_t pending_wptr64;
uint32_t pending_wptr;
unsigned int nop_packet;
struct kfd_mem_obj *rptr_mem;
uint32_t *rptr_kernel;
uint64_t rptr_gpu_addr;
struct kfd_mem_obj *wptr_mem;
union {
uint64_t *wptr64_kernel;
uint32_t *wptr_kernel;
};
uint64_t wptr_gpu_addr;
struct kfd_mem_obj *pq;
uint64_t pq_gpu_addr;
uint32_t *pq_kernel_addr;
struct kfd_mem_obj *eop_mem;
uint64_t eop_gpu_addr;
uint32_t *eop_kernel_addr;
struct kfd_mem_obj *fence_mem_obj;
uint64_t fence_gpu_addr;
void *fence_kernel_address;
struct list_head list;
};
#endif /* KFD_KERNEL_QUEUE_H_ */
Messung V0.5 in Prozent C=95 H=100 G=97
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-10-11)
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