drivers/media/platform/samsung/s5p-mfc/regs-mfc-v12.h

Source file repositories/reference/linux-study-clean/drivers/media/platform/samsung/s5p-mfc/regs-mfc-v12.h

File Facts

System
Linux kernel
Corpus path
drivers/media/platform/samsung/s5p-mfc/regs-mfc-v12.h
Extension
.h
Size
1564 bytes
Lines
53
Domain
Driver Families
Bucket
drivers/media
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _REGS_MFC_V12_H
#define _REGS_MFC_V12_H

#include <linux/sizes.h>
#include "regs-mfc-v10.h"

/* MFCv12 Context buffer sizes */
#define MFC_CTX_BUF_SIZE_V12		(30 * SZ_1K)
#define MFC_H264_DEC_CTX_BUF_SIZE_V12	(2 * SZ_1M)
#define MFC_OTHER_DEC_CTX_BUF_SIZE_V12	(30 * SZ_1K)
#define MFC_H264_ENC_CTX_BUF_SIZE_V12	(100 * SZ_1K)
#define MFC_HEVC_ENC_CTX_BUF_SIZE_V12	(40 * SZ_1K)
#define MFC_OTHER_ENC_CTX_BUF_SIZE_V12	(25 * SZ_1K)

/* MFCv12 variant defines */
#define MAX_FW_SIZE_V12			(SZ_1M)
#define MAX_CPB_SIZE_V12		(7 * SZ_1M)
#define MFC_VERSION_V12			0xC0
#define MFC_NUM_PORTS_V12		1
#define S5P_FIMV_CODEC_VP9_ENC		27
#define MFC_CHROMA_PAD_BYTES_V12        256
#define S5P_FIMV_D_ALIGN_PLANE_SIZE_V12 256

/* Encoder buffer size for MFCv12 */
#define ENC_V120_BASE_SIZE(x, y) \
	((((x) + 3) * ((y) + 3) * 8) \
	+ ((((y) * 64) + 2304) * ((x) + 7) / 8))

#define ENC_V120_H264_ME_SIZE(x, y) \
	ALIGN((ENC_V120_BASE_SIZE(x, y) \
	+ (DIV_ROUND_UP((x) * (y), 64) * 32)), 256)

#define ENC_V120_MPEG4_ME_SIZE(x, y) \
	ALIGN((ENC_V120_BASE_SIZE(x, y) \
	+ (DIV_ROUND_UP((x) * (y), 128) * 16)), 256)

#define ENC_V120_VP8_ME_SIZE(x, y) \
	ALIGN(ENC_V120_BASE_SIZE((x), (y)), 256)

#define ENC_V120_HEVC_ME_SIZE(x, y)     \
	ALIGN(((((x) + 3) * ((y) + 3) * 32)       \
	+ ((((y) * 128) + 2304) * ((x) + 3) / 4)), 256)

#endif /*_REGS_MFC_V12_H*/

Annotation

Implementation Notes