diff options
Diffstat (limited to 'include/acpi')
| -rw-r--r-- | include/acpi/actbl2.h | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h index c91be6f04fa6..9c674e03eb05 100644 --- a/include/acpi/actbl2.h +++ b/include/acpi/actbl2.h @@ -1209,7 +1209,8 @@ enum acpi_pcct_type { ACPI_PCCT_TYPE_HW_REDUCED_SUBSPACE_TYPE2 = 2, /* ACPI 6.1 */ ACPI_PCCT_TYPE_EXT_PCC_MASTER_SUBSPACE = 3, /* ACPI 6.2 */ ACPI_PCCT_TYPE_EXT_PCC_SLAVE_SUBSPACE = 4, /* ACPI 6.2 */ - ACPI_PCCT_TYPE_RESERVED = 5 /* 5 and greater are reserved */ + ACPI_PCCT_TYPE_HW_REG_COMM_SUBSPACE = 5, /* ACPI 6.4 */ + ACPI_PCCT_TYPE_RESERVED = 6 /* 6 and greater are reserved */ }; /* @@ -1324,6 +1325,24 @@ struct acpi_pcct_ext_pcc_slave { u64 error_status_mask; }; +/* 5: HW Registers based Communications Subspace */ + +struct acpi_pcct_hw_reg { + struct acpi_subtable_header header; + u16 version; + u64 base_address; + u64 length; + struct acpi_generic_address doorbell_register; + u64 doorbell_preserve; + u64 doorbell_write; + struct acpi_generic_address cmd_complete_register; + u64 cmd_complete_mask; + struct acpi_generic_address error_status_register; + u64 error_status_mask; + u32 nominal_latency; + u32 min_turnaround_time; +}; + /* Values for doorbell flags above */ #define ACPI_PCCT_INTERRUPT_POLARITY (1) |