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e15972e9af
sync_begin - cache invalidate, should be called before cpu read sync_end - cache flush, should be called after cpu write MppBuffer sync flow: 1. hw access 2. sync_begin 3. cpu access (read / write) 4. sync_end 5. hw access NOTE: readonly option is faster for read only buffer. Signed-off-by: xueman.ruan <xueman.ruan@rock-chips.com> Signed-off-by: Herman Chen <herman.chen@rock-chips.com> Change-Id: I253a6139e9bb30808c07075d64f17b5cfad8519a
25 lines
667 B
C
25 lines
667 B
C
/* SPDX-License-Identifier: Apache-2.0 OR MIT */
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/*
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* Copyright (c) 2023 Rockchip Electronics Co., Ltd.
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*/
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#ifndef __MPP_DMABUF_H__
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#define __MPP_DMABUF_H__
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#include "rk_type.h"
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#include "mpp_err.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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MPP_RET mpp_dmabuf_sync_begin(RK_S32 fd, RK_S32 ro, const char *caller);
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MPP_RET mpp_dmabuf_sync_end(RK_S32 fd, RK_S32 ro, const char *caller);
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MPP_RET mpp_dmabuf_sync_partial_begin(RK_S32 fd, RK_S32 ro, RK_U32 offset, RK_U32 length, const char *caller);
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MPP_RET mpp_dmabuf_sync_partial_end(RK_S32 fd, RK_S32 ro, RK_U32 offset, RK_U32 length, const char *caller);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __MPP_DMABUF_H__ */ |