13d203ba7f
kzalloc might fail to allocate physically contiguous memory which may not be available always and hence use vzalloc to allocate virtually contiguous memory Change-Id: I8ad89ef107da301217f3d1ec307b9b27b4edd2de Signed-off-by: Deepa Guthyappa Madivalara <quic_dmadival@quicinc.com>
68 lines
2.0 KiB
C
68 lines
2.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2020-2021,, The Linux Foundation. All rights reserved.
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*/
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#ifndef _MSM_VIDC_MEMORY_H_
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#define _MSM_VIDC_MEMORY_H_
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#include "msm_vidc_internal.h"
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struct msm_vidc_core;
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struct msm_vidc_inst;
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#define MSM_MEM_POOL_PACKET_SIZE 1024
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struct msm_memory_dmabuf {
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struct list_head list;
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struct dma_buf *dmabuf;
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u32 refcount;
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};
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enum msm_memory_pool_type {
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MSM_MEM_POOL_BUFFER = 0,
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MSM_MEM_POOL_MAP,
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MSM_MEM_POOL_ALLOC,
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MSM_MEM_POOL_TIMESTAMP,
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MSM_MEM_POOL_DMABUF,
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MSM_MEM_POOL_PACKET,
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MSM_MEM_POOL_BUF_TIMER,
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MSM_MEM_POOL_MAX,
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};
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struct msm_memory_alloc_header {
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struct list_head list;
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u32 type;
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bool busy;
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void *buf;
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};
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struct msm_memory_pool {
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u32 size;
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char *name;
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struct list_head free_pool; /* list of struct msm_memory_alloc_header */
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struct list_head busy_pool; /* list of struct msm_memory_alloc_header */
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};
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int msm_vidc_memory_alloc(struct msm_vidc_core *core,
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struct msm_vidc_alloc *alloc);
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int msm_vidc_memory_free(struct msm_vidc_core *core,
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struct msm_vidc_alloc *alloc);
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int msm_vidc_memory_map(struct msm_vidc_core *core,
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struct msm_vidc_map *map);
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int msm_vidc_memory_unmap(struct msm_vidc_core *core,
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struct msm_vidc_map *map);
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struct dma_buf *msm_vidc_memory_get_dmabuf(struct msm_vidc_inst *inst,
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int fd);
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void msm_vidc_memory_put_dmabuf(struct msm_vidc_inst *inst,
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struct dma_buf *dmabuf);
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void msm_vidc_memory_put_dmabuf_completely(struct msm_vidc_inst *inst,
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struct msm_memory_dmabuf *buf);
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int msm_memory_pools_init(struct msm_vidc_inst *inst);
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void msm_memory_pools_deinit(struct msm_vidc_inst *inst);
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void *msm_memory_pool_alloc(struct msm_vidc_inst *inst,
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enum msm_memory_pool_type type);
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void msm_memory_pool_free(struct msm_vidc_inst *inst, void *vidc_buf);
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int msm_vidc_vmem_alloc(unsigned long size, void **mem, const char *msg);
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void msm_vidc_vmem_free(void **addr);
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#endif // _MSM_VIDC_MEMORY_H_
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