Files
linux-nvgpu/drivers/gpu/nvgpu/include/nvgpu/engine_fb_queue.h
Sagar Kamble 0a762889c6 gpu: nvgpu: eliminate struct nvgpu_falcon dependency from engine_queues
engine queue head and tail methods were retrieved from falcon structure.
engine queue initialization can get these methods directly from hal
through params. Also eliminate struct nvgpu_falcon dereference in engine
queue sources to remove inclusion of falcon_priv.h.

JIRA NVGPU-1994

Change-Id: Idbebd5049cfd14eb3fe0e27b2bef8436cc61e101
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2016290
GVS: Gerrit_Virtual_Submit
Reviewed-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2019-02-19 06:36:14 -08:00

82 lines
3.0 KiB
C

/*
* Copyright (c) 2017-2019, NVIDIA CORPORATION. All rights reserved.
*
* 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 AUTHORS OR COPYRIGHT HOLDERS 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 NVGPU_ENGINE_FB_QUEUE_H
#define NVGPU_ENGINE_FB_QUEUE_H
#include <nvgpu/types.h>
struct gk20a;
struct nvgpu_engine_fb_queue;
struct nvgpu_engine_fb_queue_params {
struct gk20a *g;
u32 flcn_id;
/* logical queue identifier */
u32 id;
/* physical queue index */
u32 index;
/* in bytes */
u32 size;
/* open-flag */
u32 oflag;
/* fb queue params*/
/* Holds the offset of queue data (0th element) */
u32 fbq_offset;
/* fb queue element size*/
u32 fbq_element_size;
/* Holds super surface base address */
struct nvgpu_mem *super_surface_mem;
/* engine specific ops */
int (*queue_head)(struct gk20a *g, u32 queue_id, u32 queue_index,
u32 *head, bool set);
int (*queue_tail)(struct gk20a *g, u32 queue_id, u32 queue_index,
u32 *tail, bool set);
};
/* queue public functions */
int nvgpu_engine_fb_queue_init(struct nvgpu_engine_fb_queue **queue_p,
struct nvgpu_engine_fb_queue_params params);
bool nvgpu_engine_fb_queue_is_empty(struct nvgpu_engine_fb_queue *queue);
int nvgpu_engine_fb_queue_pop(struct nvgpu_engine_fb_queue *queue,
void *data, u32 size, u32 *bytes_read);
int nvgpu_engine_fb_queue_push(struct nvgpu_engine_fb_queue *queue,
void *data, u32 size);
void nvgpu_engine_fb_queue_free(struct nvgpu_engine_fb_queue **queue_p);
u32 nvgpu_engine_fb_queue_get_position(struct nvgpu_engine_fb_queue *queue);
u32 nvgpu_engine_fb_queue_get_element_size(struct nvgpu_engine_fb_queue *queue);
u32 nvgpu_engine_fb_queue_get_offset(struct nvgpu_engine_fb_queue *queue);
u8 *nvgpu_engine_fb_queue_get_work_buffer(struct nvgpu_engine_fb_queue *queue);
int nvgpu_engine_fb_queue_free_element(struct nvgpu_engine_fb_queue *queue,
u32 queue_pos);
void nvgpu_engine_fb_queue_lock_work_buffer(
struct nvgpu_engine_fb_queue *queue);
void nvgpu_engine_fb_queue_unlock_work_buffer(
struct nvgpu_engine_fb_queue *queue);
#endif /* NVGPU_ENGINE_FB_QUEUE_H */