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8b8130f0c7
The encoder driver has no need to do any CPU access to the source frame buffers. Use a separate structure for holding DMA addresses and sizes for those and remove, so we do not end up introducing any erroneous dereferences of those VAs. This fixes DMA-buf import from exporters that do not provide contiguous kernel mappings, which includes the MTK DRM driver. Signed-off-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
95 lines
2.6 KiB
C
95 lines
2.6 KiB
C
/*
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* Copyright (c) 2016 MediaTek Inc.
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* Author: PC Chen <pc.chen@mediatek.com>
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* Tiffany Lin <tiffany.lin@mediatek.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _MTK_VCODEC_UTIL_H_
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#define _MTK_VCODEC_UTIL_H_
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#include <linux/types.h>
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#include <linux/dma-direction.h>
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struct mtk_vcodec_mem {
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size_t size;
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void *va;
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dma_addr_t dma_addr;
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};
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struct mtk_vcodec_fb {
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size_t size;
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dma_addr_t dma_addr;
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};
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struct mtk_vcodec_ctx;
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struct mtk_vcodec_dev;
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extern int mtk_v4l2_dbg_level;
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extern bool mtk_vcodec_dbg;
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#define mtk_v4l2_err(fmt, args...) \
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pr_err("[MTK_V4L2][ERROR] %s:%d: " fmt "\n", __func__, __LINE__, \
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##args)
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#define mtk_vcodec_err(h, fmt, args...) \
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pr_err("[MTK_VCODEC][ERROR][%d]: %s() " fmt "\n", \
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((struct mtk_vcodec_ctx *)h->ctx)->id, __func__, ##args)
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#if defined(DEBUG)
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#define mtk_v4l2_debug(level, fmt, args...) \
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do { \
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if (mtk_v4l2_dbg_level >= level) \
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pr_info("[MTK_V4L2] level=%d %s(),%d: " fmt "\n",\
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level, __func__, __LINE__, ##args); \
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} while (0)
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#define mtk_v4l2_debug_enter() mtk_v4l2_debug(3, "+")
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#define mtk_v4l2_debug_leave() mtk_v4l2_debug(3, "-")
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#define mtk_vcodec_debug(h, fmt, args...) \
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do { \
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if (mtk_vcodec_dbg) \
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pr_info("[MTK_VCODEC][%d]: %s() " fmt "\n", \
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((struct mtk_vcodec_ctx *)h->ctx)->id, \
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__func__, ##args); \
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} while (0)
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#define mtk_vcodec_debug_enter(h) mtk_vcodec_debug(h, "+")
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#define mtk_vcodec_debug_leave(h) mtk_vcodec_debug(h, "-")
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#else
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#define mtk_v4l2_debug(level, fmt, args...) {}
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#define mtk_v4l2_debug_enter() {}
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#define mtk_v4l2_debug_leave() {}
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#define mtk_vcodec_debug(h, fmt, args...) {}
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#define mtk_vcodec_debug_enter(h) {}
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#define mtk_vcodec_debug_leave(h) {}
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#endif
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void __iomem *mtk_vcodec_get_reg_addr(struct mtk_vcodec_ctx *data,
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unsigned int reg_idx);
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int mtk_vcodec_mem_alloc(struct mtk_vcodec_ctx *data,
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struct mtk_vcodec_mem *mem);
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void mtk_vcodec_mem_free(struct mtk_vcodec_ctx *data,
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struct mtk_vcodec_mem *mem);
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void mtk_vcodec_set_curr_ctx(struct mtk_vcodec_dev *dev,
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struct mtk_vcodec_ctx *ctx);
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struct mtk_vcodec_ctx *mtk_vcodec_get_curr_ctx(struct mtk_vcodec_dev *dev);
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#endif /* _MTK_VCODEC_UTIL_H_ */
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