drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_baco.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_baco.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_baco.c
Extension
.c
Size
7533 bytes
Lines
118
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

ARRAY_SIZE(pre_baco_tbl))) {
			if (smum_send_msg_to_smc(hwmgr, PPSMC_MSG_EnterBaco, NULL))
				return -EINVAL;

			if (soc15_baco_program_registers(hwmgr, enter_baco_tbl,
						   ARRAY_SIZE(enter_baco_tbl)))
				return 0;
		}
	} else if (state == BACO_STATE_OUT) {
		/* HW requires at least 20ms between regulator off and on */
		msleep(20);
		/* Execute Hardware BACO exit sequence */
		if (soc15_baco_program_registers(hwmgr, exit_baco_tbl,
					     ARRAY_SIZE(exit_baco_tbl))) {
			if (soc15_baco_program_registers(hwmgr, clean_baco_tbl,
						     ARRAY_SIZE(clean_baco_tbl)))
				return 0;
		}
	}

	return -EINVAL;
}

Annotation

Implementation Notes