[PATCH 04/15] ACPICA: ACPI 6.1: Support for new PCCT subtable

Lv Zheng
2016-05-04T05:48:27Z

From: Bob Moore <robert.moore@intel.com>

ACPICA commit de3ea7c322b9b6bdb09aa90c2e1d420cd4dce47c

Additional subspace structure was added.

Link: https://github.com/acpica/acpica/commit/de3ea7c3
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
---
include/acpi/actbl3.h | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/include/acpi/actbl3.h b/include/acpi/actbl3.h
index f12f4bb..ebc1f4f 100644
--- a/include/acpi/actbl3.h
+++ b/include/acpi/actbl3.h
@@ -481,7 +481,8 @@ struct acpi_table_pcct {
enum acpi_pcct_type {
ACPI_PCCT_TYPE_GENERIC_SUBSPACE = 0,
ACPI_PCCT_TYPE_HW_REDUCED_SUBSPACE = 1,
- ACPI_PCCT_TYPE_RESERVED = 2 /* 2 and greater are reserved */
+ ACPI_PCCT_TYPE_HW_REDUCED_SUBSPACE_TYPE2 = 2, /* ACPI 6.1 */
+ ACPI_PCCT_TYPE_RESERVED = 3 /* 3 and greater are reserved */
};

/*
@@ -520,6 +521,26 @@ struct acpi_pcct_hw_reduced {
u16 min_turnaround_time;
};

+/* 2: HW-reduced Communications Subspace Type 2 (ACPI 6.1) */
+
+struct acpi_pcct_hw_reduced_type2 {
+ struct acpi_subtable_header header;
+ u32 doorbell_interrupt;
+ u8 flags;
+ u8 reserved;
+ u64 base_address;
+ u64 length;
+ struct acpi_generic_address doorbell_register;
+ u64 preserve_mask;
+ u64 write_mask;
+ u32 latency;
+ u32 max_access_rate;
+ u16 min_turnaround_time;
+ struct acpi_generic_address doorbell_ack_register;
+ u64 ack_preserve_mask;
+ u64 ack_write_mask;
+};
+
/* Values for doorbell flags above */

#define ACPI_PCCT_INTERRUPT_POLARITY (1)
--
1.7.10