xref: /openbmc/linux/drivers/staging/media/meson/vdec/codec_hevc_common.h (revision 7c45affd)

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright (C) 2018 BayLibre, SAS
 * Author: Maxime Jourdan <mjourdan@baylibre.com>
 */

#ifndef __MESON_VDEC_HEVC_COMMON_H_
#define __MESON_VDEC_HEVC_COMMON_H_

#include "vdec.h"

#define PARSER_CMD_SKIP_CFG_0 0x0000090b
#define PARSER_CMD_SKIP_CFG_1 0x1b14140f
#define PARSER_CMD_SKIP_CFG_2 0x001b1910

#define VDEC_HEVC_PARSER_CMD_LEN 37
extern const u16 vdec_hevc_parser_cmd[VDEC_HEVC_PARSER_CMD_LEN];

#define MAX_REF_PIC_NUM	24

struct codec_hevc_common {
	void      *fbc_buffer_vaddr[MAX_REF_PIC_NUM];
	dma_addr_t fbc_buffer_paddr[MAX_REF_PIC_NUM];

	void      *mmu_header_vaddr[MAX_REF_PIC_NUM];
	dma_addr_t mmu_header_paddr[MAX_REF_PIC_NUM];

	void      *mmu_map_vaddr;
	dma_addr_t mmu_map_paddr;
};

/* Returns 1 if we must use framebuffer compression */
static inline int codec_hevc_use_fbc(u32 pixfmt, int is_10bit)
{
	/* TOFIX: Handle Amlogic Compressed buffer for 8bit also */
	return is_10bit;
}

/* Returns 1 if we are decoding 10-bit but outputting 8-bit NV12 */
static inline int codec_hevc_use_downsample(u32 pixfmt, int is_10bit)
{
	return is_10bit;
}

/* Returns 1 if we are decoding using the IOMMU */
static inline int codec_hevc_use_mmu(u32 revision, u32 pixfmt, int is_10bit)
{
	return revision >= VDEC_REVISION_G12A &&
	       codec_hevc_use_fbc(pixfmt, is_10bit);
}

/* Configure decode head read mode */
void codec_hevc_setup_decode_head(struct amvdec_session *sess, int is_10bit);

void codec_hevc_free_fbc_buffers(struct amvdec_session *sess,
				 struct codec_hevc_common *comm);

void codec_hevc_free_mmu_headers(struct amvdec_session *sess,
				 struct codec_hevc_common *comm);

int codec_hevc_setup_buffers(struct amvdec_session *sess,
			     struct codec_hevc_common *comm,
			     int is_10bit);

void codec_hevc_fill_mmu_map(struct amvdec_session *sess,
			     struct codec_hevc_common *comm,
			     struct vb2_buffer *vb);

#endif