drivers/gpu/drm/amd/amdgpu/mmsch_v2_0.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/amd/amdgpu/mmsch_v2_0.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/amd/amdgpu/mmsch_v2_0.h
Extension
.h
Size
25616 bytes
Lines
339
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_v2_0_init_header {
	uint32_t version;
	uint32_t header_size;
	uint32_t vcn_init_status;
	uint32_t vcn_table_offset;
	uint32_t vcn_table_size;
};

struct mmsch_v2_0_cmd_direct_reg_header {
	uint32_t reg_offset   : 28;
	uint32_t command_type : 4;
};

struct mmsch_v2_0_cmd_indirect_reg_header {
	uint32_t reg_offset    : 20;
	uint32_t reg_idx_space : 8;
	uint32_t command_type  : 4;
};

struct mmsch_v2_0_cmd_direct_write {
	struct mmsch_v2_0_cmd_direct_reg_header cmd_header;
	uint32_t reg_value;
};

struct mmsch_v2_0_cmd_direct_read_modify_write {
	struct mmsch_v2_0_cmd_direct_reg_header cmd_header;
	uint32_t write_data;
	uint32_t mask_value;
};

struct mmsch_v2_0_cmd_direct_polling {
	struct mmsch_v2_0_cmd_direct_reg_header cmd_header;
	uint32_t mask_value;
	uint32_t wait_value;
};

struct mmsch_v2_0_cmd_end {
	struct mmsch_v2_0_cmd_direct_reg_header cmd_header;
};

struct mmsch_v2_0_cmd_indirect_write {
	struct mmsch_v2_0_cmd_indirect_reg_header cmd_header;
	uint32_t reg_value;
};

static inline void mmsch_v2_0_insert_direct_wt(struct mmsch_v2_0_cmd_direct_write *direct_wt,
					       uint32_t *init_table,
					       uint32_t reg_offset,
					       uint32_t value)
{
	direct_wt->cmd_header.reg_offset = reg_offset;
	direct_wt->reg_value = value;
	memcpy((void *)init_table, direct_wt, sizeof(struct mmsch_v2_0_cmd_direct_write));
}

static inline void mmsch_v2_0_insert_direct_rd_mod_wt(struct mmsch_v2_0_cmd_direct_read_modify_write *direct_rd_mod_wt,
						      uint32_t *init_table,
						      uint32_t reg_offset,
						      uint32_t mask, uint32_t data)
{
	direct_rd_mod_wt->cmd_header.reg_offset = reg_offset;
	direct_rd_mod_wt->mask_value = mask;
	direct_rd_mod_wt->write_data = data;
	memcpy((void *)init_table, direct_rd_mod_wt,
	       sizeof(struct mmsch_v2_0_cmd_direct_read_modify_write));
}

static inline void mmsch_v2_0_insert_direct_poll(struct mmsch_v2_0_cmd_direct_polling *direct_poll,
						 uint32_t *init_table,
						 uint32_t reg_offset,
						 uint32_t mask, uint32_t wait)
{
	direct_poll->cmd_header.reg_offset = reg_offset;
	direct_poll->mask_value = mask;
	direct_poll->wait_value = wait;
	memcpy((void *)init_table, direct_poll, sizeof(struct mmsch_v2_0_cmd_direct_polling));
}

#define MMSCH_V2_0_INSERT_DIRECT_RD_MOD_WT(reg, mask, data) { \
	mmsch_v2_0_insert_direct_rd_mod_wt(&direct_rd_mod_wt, \
					   init_table, (reg), \
					   (mask), (data)); \
	init_table += sizeof(struct mmsch_v2_0_cmd_direct_read_modify_write)/4; \
	table_size += sizeof(struct mmsch_v2_0_cmd_direct_read_modify_write)/4; \
}

#define MMSCH_V2_0_INSERT_DIRECT_WT(reg, value) { \
	mmsch_v2_0_insert_direct_wt(&direct_wt, \
				    init_table, (reg), \
				    (value)); \

Annotation

Implementation Notes