drivers/gpu/drm/amd/amdgpu/mmsch_v5_0.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/amd/amdgpu/mmsch_v5_0.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/amd/amdgpu/mmsch_v5_0.h
Extension
.h
Size
4381 bytes
Lines
145
Domain
Driver Families
Bucket
drivers/gpu
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

struct mmsch_v5_0_table_info {
	uint32_t init_status;
	uint32_t table_offset;
	uint32_t table_size;
};

struct mmsch_v5_0_init_header {
	uint32_t version;
	uint32_t total_size;
	struct mmsch_v5_0_table_info vcn0;
	struct mmsch_v5_0_table_info mjpegdec0[5];
	struct mmsch_v5_0_table_info mjpegdec1[5];
};

struct mmsch_v5_0_cmd_direct_reg_header {
	uint32_t reg_offset   : 28;
	uint32_t command_type : 4;
};

struct mmsch_v5_0_cmd_indirect_reg_header {
	uint32_t reg_offset    : 20;
	uint32_t reg_idx_space : 8;
	uint32_t command_type  : 4;
};

struct mmsch_v5_0_cmd_direct_write {
	struct mmsch_v5_0_cmd_direct_reg_header cmd_header;
	uint32_t reg_value;
};

struct mmsch_v5_0_cmd_direct_read_modify_write {
	struct mmsch_v5_0_cmd_direct_reg_header cmd_header;
	uint32_t write_data;
	uint32_t mask_value;
};

struct mmsch_v5_0_cmd_direct_polling {
	struct mmsch_v5_0_cmd_direct_reg_header cmd_header;
	uint32_t mask_value;
	uint32_t wait_value;
};

struct mmsch_v5_0_cmd_end {
	struct mmsch_v5_0_cmd_direct_reg_header cmd_header;
};

struct mmsch_v5_0_cmd_indirect_write {
	struct mmsch_v5_0_cmd_indirect_reg_header cmd_header;
	uint32_t reg_value;
};

#define MMSCH_V5_0_INSERT_DIRECT_RD_MOD_WT(reg, mask, data) { \
	size = sizeof(struct mmsch_v5_0_cmd_direct_read_modify_write); \
	size_dw = size / 4; \
	direct_rd_mod_wt.cmd_header.reg_offset = reg; \
	direct_rd_mod_wt.mask_value = mask; \
	direct_rd_mod_wt.write_data = data; \
	memcpy((void *)table_loc, &direct_rd_mod_wt, size); \
	table_loc += size_dw; \
	table_size += size_dw; \
}

#define MMSCH_V5_0_INSERT_DIRECT_WT(reg, value) { \
	size = sizeof(struct mmsch_v5_0_cmd_direct_write); \
	size_dw = size / 4; \
	direct_wt.cmd_header.reg_offset = reg; \
	direct_wt.reg_value = value; \
	memcpy((void *)table_loc, &direct_wt, size); \
	table_loc += size_dw; \
	table_size += size_dw; \
}

#define MMSCH_V5_0_INSERT_DIRECT_POLL(reg, mask, wait) { \
	size = sizeof(struct mmsch_v5_0_cmd_direct_polling); \
	size_dw = size / 4; \
	direct_poll.cmd_header.reg_offset = reg; \
	direct_poll.mask_value = mask; \
	direct_poll.wait_value = wait; \
	memcpy((void *)table_loc, &direct_poll, size); \
	table_loc += size_dw; \
	table_size += size_dw; \
}

#define MMSCH_V5_0_INSERT_END() { \
	size = sizeof(struct mmsch_v5_0_cmd_end); \
	size_dw = size / 4; \
	memcpy((void *)table_loc, &end, size); \
	table_loc += size_dw; \
	table_size += size_dw; \
}

Annotation

Implementation Notes