drivers/acpi/acpi_pcc.c

6  * The PCC Address Space also referred as PCC Operation Region pertains to the
7  * region of PCC subspace that succeeds the PCC signature. The PCC Operation
8  * Region works in conjunction with the PCC Table(Platform Communications
9  * Channel Table). PCC subspaces that are marked for use as PCC Operation
10  * Regions must not be used as PCC subspaces for the standard ACPI features
12  * the PCC Table instead.
14  * This driver sets up the PCC Address Space and installs an handler to enable
15  * handling of PCC OpRegion in the firmware.
24 #include <acpi/pcc.h>
28  * to PCC commands
71 		pr_err("Failed to find PCC channel for subspace %d\n",  in acpi_pcc_address_space_setup()
87 		pr_err("Failed to ioremap PCC comm region mem for %d\n",  in acpi_pcc_address_space_setup()
131 		pr_err("PCC command executed timeout!\n");  in acpi_pcc_address_space_handler()