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Advertise p4tcc via acpi_get_features() _PDC support.

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This commit is contained in:
Nate Lawson 2005-04-10 19:16:27 +00:00
parent 8d9134815e
commit 25554b1f2b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=144877
1 changed files with 18 additions and 0 deletions
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18
sys/i386/cpufreq/p4tcc.c
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@ -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)
{