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| author | Dave Jiang <dave.jiang@intel.com> | 2024-08-08 16:18:01 -0700 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2024-08-29 19:04:22 +0200 |
| commit | 6143f9616627ddbfdf827795745fa4d9db166bc2 (patch) | |
| tree | 32ceb5578cec7999b7cfbc3ce3701b3a8fce19d2 /include/acpi | |
| parent | 5506544dc2e48199f0e917d0a0847562f7a5d78d (diff) | |
| download | lwn-6143f9616627ddbfdf827795745fa4d9db166bc2.tar.gz lwn-6143f9616627ddbfdf827795745fa4d9db166bc2.zip | |
ACPICA: HMAT: Add extended linear address mode to MSCIS
ACPICA commit aaa08569b81aa4d9ff59f91f00e589e98d499e6c
Redefine the 2 reserved bytes at offset 28 of Memory Side Cache Information
Structure as "Address Mode" and add defines of the new value.
* 0 - Reserved (Unkown Address Mode)
* 1 - Extended-linear (N direct-map aliases linearly mapped)
* 2..65535 - Reserved (Unknown Address Mode)
Link: https://github.com/acpica/acpica/commit/aaa08569
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi')
| -rw-r--r-- | include/acpi/actbl1.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h index 89f0df489dc3..199afc2cd122 100644 --- a/include/acpi/actbl1.h +++ b/include/acpi/actbl1.h @@ -1796,7 +1796,7 @@ struct acpi_hmat_cache { u32 reserved1; u64 cache_size; u32 cache_attributes; - u16 reserved2; + u16 address_mode; u16 number_of_SMBIOShandles; }; @@ -1808,6 +1808,9 @@ struct acpi_hmat_cache { #define ACPI_HMAT_WRITE_POLICY (0x0000F000) #define ACPI_HMAT_CACHE_LINE_SIZE (0xFFFF0000) +#define ACPI_HMAT_CACHE_MODE_UNKNOWN (0) +#define ACPI_HMAT_CACHE_MODE_EXTENDED_LINEAR (1) + /* Values for cache associativity flag */ #define ACPI_HMAT_CA_NONE (0) |