Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

If the thermal zone has a _PSL method, print a list of processors

Browse Source 
associated with the zone at attach time.

  acpitz0 at acpi0 (THM0)
  acpitz0: levels: critical 127.0 C, passive cooling
  acpitz1 at acpi0 (THM1): cpu0 cpu1
  acpitz1: levels: critical 100.0 C, passive 95.5 C, passive cooling
This commit is contained in:
jmcneill 2011-01-18 21:15:54 +00:00
parent f6f704508c
commit c93b203331
1 changed files with 67 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

72
sys/dev/acpi/acpi_tz.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: acpi_tz.c,v 1.77 2011/01/09 14:58:10 jruoho Exp $ */
/* $NetBSD: acpi_tz.c,v 1.78 2011/01/18 21:15:54 jmcneill Exp $ */
/*
* Copyright (c) 2003 Jared D. McNeill <jmcneill@invisible.ca>
@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: acpi_tz.c,v 1.77 2011/01/09 14:58:10 jruoho Exp $");
__KERNEL_RCSID(0, "$NetBSD: acpi_tz.c,v 1.78 2011/01/18 21:15:54 jmcneill Exp $");
#include <sys/param.h>
#include <sys/device.h>
@ -133,6 +133,8 @@ static int acpitz_get_fanspeed(device_t, uint32_t *,
#ifdef notyet
static ACPI_STATUS acpitz_set_fanspeed(device_t, uint32_t);
#endif
static void acpitz_print_processor_list(device_t);
static struct cpu_info *acpitz_find_processor(uint32_t);
CFATTACH_DECL_NEW(acpitz, sizeof(struct acpitz_softc),
acpitz_match, acpitz_attach, acpitz_detach, NULL);
@ -162,14 +164,15 @@ acpitz_attach(device_t parent, device_t self, void *aux)
ACPI_INTEGER val;
ACPI_STATUS rv;
aprint_naive("\n");
aprint_normal(": ACPI Thermal Zone\n");
sc->sc_first = true;
sc->sc_have_fan = false;
sc->sc_node = aa->aa_node;
sc->sc_zone.tzp = ATZ_TZP_RATE;
aprint_naive("\n");
acpitz_print_processor_list(self);
aprint_normal("\n");
/*
* The _TZP (ACPI 4.0, p. 430) defines the recommended
* polling interval (in tenths of seconds). A value zero
@ -700,6 +703,65 @@ acpitz_set_fanspeed(device_t dv, uint32_t fanspeed)
}
#endif
static void
acpitz_print_processor_list(device_t dv)
{
struct acpitz_softc *sc = device_private(dv);
ACPI_HANDLE handle = sc->sc_node->ad_handle;
ACPI_HANDLE prhandle;
ACPI_BUFFER buf, prbuf;
ACPI_OBJECT *obj, *pref, *pr;
ACPI_STATUS rv;
struct cpu_info *ci;
unsigned int i, cnt;
rv = acpi_eval_struct(handle, "_PSL", &buf);
if (ACPI_FAILURE(rv) || buf.Pointer == NULL)
return;
obj = buf.Pointer;
if (obj->Type != ACPI_TYPE_PACKAGE || obj->Package.Count == 0)
goto done;
for (i = 0, cnt = 0; i < obj->Package.Count; i++) {
pref = &obj->Package.Elements[i];
rv = acpi_eval_reference_handle(pref, &prhandle);
if (ACPI_FAILURE(rv))
continue;
rv = acpi_eval_struct(prhandle, NULL, &prbuf);
if (ACPI_FAILURE(rv) || prbuf.Pointer == NULL)
continue;
pr = prbuf.Pointer;
if (pr->Type != ACPI_TYPE_PROCESSOR)
goto next;
ci = acpitz_find_processor(pr->Processor.ProcId);
if (ci) {
if (cnt == 0)
aprint_normal(":");
aprint_normal(" %s", device_xname(ci->ci_dev));
++cnt;
}
next:
ACPI_FREE(prbuf.Pointer);
}
done:
ACPI_FREE(buf.Pointer);
}
static struct cpu_info *
acpitz_find_processor(uint32_t id)
{
CPU_INFO_ITERATOR cii;
struct cpu_info *ci;
for (CPU_INFO_FOREACH(cii, ci))
if (ci->ci_acpiid == id)
return ci;
return NULL;
}
static void
acpitz_tick(void *opaque)
{