diff options
| author | njl <njl@FreeBSD.org> | 2005-04-10 19:07:08 +0000 |
|---|---|---|
| committer | njl <njl@FreeBSD.org> | 2005-04-10 19:07:08 +0000 |
| commit | b6e8f5f503eaea3a8229e50ace0752e5dd4379db (patch) | |
| tree | 910864546c17aa8d1741a97edd594ed966c44050 /sys/dev/acpica/acpivar.h | |
| parent | c52e79424bd29ddc3d56a8a1108aac41dc8b05d8 (diff) | |
| download | FreeBSD-src-b6e8f5f503eaea3a8229e50ace0752e5dd4379db.zip FreeBSD-src-b6e8f5f503eaea3a8229e50ace0752e5dd4379db.tar.gz | |
Fix support for _PDC by using the proper version/length format for the
buffer. Also, reference the Intel document where the _PDC values were
found. This now supports ACPI-assisted SpeedStep on my borrowed T42.
Diffstat (limited to 'sys/dev/acpica/acpivar.h')
| -rw-r--r-- | sys/dev/acpica/acpivar.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/dev/acpica/acpivar.h b/sys/dev/acpica/acpivar.h index 3935367..98f8caf 100644 --- a/sys/dev/acpica/acpivar.h +++ b/sys/dev/acpica/acpivar.h @@ -168,6 +168,8 @@ extern struct mtx acpi_mutex; /* * Various features and capabilities for the acpi_get_features() method. * In particular, these are used for the ACPI 3.0 _PDC and _OSC methods. + * See the Intel document titled "Processor Driver Capabilities Bit + * Definitions", number 302223-002. */ #define ACPI_CAP_PERF_MSRS (1 << 0) /* Intel SpeedStep PERF_CTL MSRs */ #define ACPI_CAP_C1_IO_HALT (1 << 1) /* Intel C1 "IO then halt" sequence */ |
