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| author | njl <njl@FreeBSD.org> | 2005-04-10 19:16:27 +0000 |
|---|---|---|
| committer | njl <njl@FreeBSD.org> | 2005-04-10 19:16:27 +0000 |
| commit | 355a3fed0d1372ce7f65a5ffaf0c123177decd8a (patch) | |
| tree | 0a5260a0812d28a473b94b3f1ac330f6a1b54ee7 /sys/i386/cpufreq | |
| parent | 46ef074ef7ac813dbbea92909ab1b0756d21b2c1 (diff) | |
| download | FreeBSD-src-355a3fed0d1372ce7f65a5ffaf0c123177decd8a.zip FreeBSD-src-355a3fed0d1372ce7f65a5ffaf0c123177decd8a.tar.gz | |
Advertise p4tcc via acpi_get_features() _PDC support.
Diffstat (limited to 'sys/i386/cpufreq')
| -rw-r--r-- | sys/i386/cpufreq/p4tcc.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/sys/i386/cpufreq/p4tcc.c b/sys/i386/cpufreq/p4tcc.c index b8cf66e..44c1d96 100644 --- a/sys/i386/cpufreq/p4tcc.c +++ b/sys/i386/cpufreq/p4tcc.c @@ -51,6 +51,10 @@ __FBSDID("$FreeBSD$"); #include "cpufreq_if.h" +#include <contrib/dev/acpica/acpi.h> +#include <dev/acpica/acpivar.h> +#include "acpi_if.h" + struct p4tcc_softc { device_t dev; int set_count; @@ -64,6 +68,7 @@ struct p4tcc_softc { #define TCC_REG_OFFSET 1 #define TCC_SPEED_PERCENT(x) ((10000 * (x)) / TCC_NUM_SETTINGS) +static int p4tcc_features(driver_t *driver, u_int *features); static void p4tcc_identify(driver_t *driver, device_t parent); static int p4tcc_probe(device_t dev); static int p4tcc_attach(device_t dev); @@ -84,6 +89,10 @@ static device_method_t p4tcc_methods[] = { DEVMETHOD(cpufreq_drv_get, p4tcc_get), DEVMETHOD(cpufreq_drv_type, p4tcc_type), DEVMETHOD(cpufreq_drv_settings, p4tcc_settings), + + /* ACPI interface */ + DEVMETHOD(acpi_get_features, p4tcc_features), + {0, 0} }; @@ -96,6 +105,15 @@ static driver_t p4tcc_driver = { static devclass_t p4tcc_devclass; DRIVER_MODULE(p4tcc, cpu, p4tcc_driver, p4tcc_devclass, 0, 0); +static int +p4tcc_features(driver_t *driver, u_int *features) +{ + + /* Notify the ACPI CPU that we support direct access to MSRs */ + *features = ACPI_CAP_THR_MSRS; + return (0); +} + static void p4tcc_identify(driver_t *driver, device_t parent) { |
