drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.h
Extension
.h
Size
9159 bytes
Lines
253
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 dmub_srv_common_reg_offset {
#define DMUB_SR(reg) uint32_t reg;
	DMUB_COMMON_REGS()
	DMCUB_INTERNAL_REGS()
#undef DMUB_SR
};

struct dmub_srv_common_reg_shift {
#define DMUB_SF(reg, field) uint8_t reg##__##field;
	DMUB_COMMON_FIELDS()
#undef DMUB_SF
};

struct dmub_srv_common_reg_mask {
#define DMUB_SF(reg, field) uint32_t reg##__##field;
	DMUB_COMMON_FIELDS()
#undef DMUB_SF
};

struct dmub_srv_common_regs {
	const struct dmub_srv_common_reg_offset offset;
	const struct dmub_srv_common_reg_mask mask;
	const struct dmub_srv_common_reg_shift shift;
};

extern const struct dmub_srv_common_regs dmub_srv_dcn20_regs;

/* Hardware functions. */

void dmub_dcn20_init(struct dmub_srv *dmub);

void dmub_dcn20_reset(struct dmub_srv *dmub);

void dmub_dcn20_reset_release(struct dmub_srv *dmub);

void dmub_dcn20_backdoor_load(struct dmub_srv *dmub,
			      const struct dmub_window *cw0,
			      const struct dmub_window *cw1);

void dmub_dcn20_setup_windows(struct dmub_srv *dmub,
			      const struct dmub_window *cw2,
			      const struct dmub_window *cw3,
			      const struct dmub_window *cw4,
			      const struct dmub_window *cw5,
			      const struct dmub_window *cw6,
			      const struct dmub_window *region6);

void dmub_dcn20_setup_mailbox(struct dmub_srv *dmub,
			      const struct dmub_region *inbox1);

uint32_t dmub_dcn20_get_inbox1_wptr(struct dmub_srv *dmub);

uint32_t dmub_dcn20_get_inbox1_rptr(struct dmub_srv *dmub);

void dmub_dcn20_set_inbox1_wptr(struct dmub_srv *dmub, uint32_t wptr_offset);

void dmub_dcn20_setup_out_mailbox(struct dmub_srv *dmub,
			      const struct dmub_region *outbox1);

uint32_t dmub_dcn20_get_outbox1_wptr(struct dmub_srv *dmub);

void dmub_dcn20_set_outbox1_rptr(struct dmub_srv *dmub, uint32_t rptr_offset);

void dmub_dcn20_setup_outbox0(struct dmub_srv *dmub,
			      const struct dmub_region *outbox0);

uint32_t dmub_dcn20_get_outbox0_wptr(struct dmub_srv *dmub);

void dmub_dcn20_set_outbox0_rptr(struct dmub_srv *dmub, uint32_t rptr_offset);

bool dmub_dcn20_is_hw_init(struct dmub_srv *dmub);

bool dmub_dcn20_is_supported(struct dmub_srv *dmub);

void dmub_dcn20_set_gpint(struct dmub_srv *dmub,
			  union dmub_gpint_data_register reg);

bool dmub_dcn20_is_gpint_acked(struct dmub_srv *dmub,
			       union dmub_gpint_data_register reg);

uint32_t dmub_dcn20_get_gpint_response(struct dmub_srv *dmub);

void dmub_dcn20_enable_dmub_boot_options(struct dmub_srv *dmub, const struct dmub_srv_hw_params *params);

void dmub_dcn20_skip_dmub_panel_power_sequence(struct dmub_srv *dmub, bool skip);

union dmub_fw_boot_status dmub_dcn20_get_fw_boot_status(struct dmub_srv *dmub);

bool dmub_dcn20_use_cached_inbox(struct dmub_srv *dmub);

Annotation

Implementation Notes