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x86: acpi: Add CSRT description

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Add CSRT [1] description as it provided in Linux kernel.

[1]: http://www.uefi.org/sites/default/files/resources/CSRT%20v2.pdf

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Andy Shevchenko 2019-07-14 19:23:56 +03:00 committed by Bin Meng
parent 68d70a1cf6
commit eef3007945
1 changed files with 31 additions and 0 deletions
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31
arch/x86/include/asm/acpi_table.h
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@ -303,6 +303,37 @@ struct acpi_mcfg_mmconfig {
/* ACPI global NVS structure */
struct acpi_global_nvs;
/* CSRT (Core System Resource Table) */
struct acpi_csrt {
struct acpi_table_header header;
};
struct acpi_csrt_group {
u32 length;
u32 vendor_id;
u32 subvendor_id;
u16 device_id;
u16 subdevice_id;
u16 revision;
u16 reserved;
u32 shared_info_length;
};
struct acpi_csrt_shared_info {
u16 major_version;
u16 minor_version;
u32 mmio_base_low;
u32 mmio_base_high;
u32 gsi_interrupt;
u8 interrupt_polarity;
u8 interrupt_mode;
u8 num_channels;
u8 dma_address_width;
u16 base_request_line;
u16 num_handshake_signals;
u32 max_block_size;
};
/* DBG2 definitions are partially used for SPCR interface_type */
/* Types for port_type field */