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Add DMI quirk support via pmf_get_platform(9). If any of the listed models 

are matched, the whole driver will be prevented from attaching. The first
entry is Supermicro PDSMi-LN4+ (a BIOS bug with bogus P-state entries).
This commit is contained in:
jruoho 2011-03-03 19:24:43 +00:00
parent d4bc3823a0
commit 80dcd7f76f
1 changed files with 27 additions and 2 deletions
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29
sys/dev/acpi/acpi_cpu.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: acpi_cpu.c,v 1.35 2011/03/02 06:17:08 jruoho Exp $ */
/* $NetBSD: acpi_cpu.c,v 1.36 2011/03/03 19:24:43 jruoho Exp $ */
/*-
* Copyright (c) 2010, 2011 Jukka Ruohonen <jruohonen@iki.fi>
@ -27,7 +27,7 @@
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: acpi_cpu.c,v 1.35 2011/03/02 06:17:08 jruoho Exp $");
__KERNEL_RCSID(0, "$NetBSD: acpi_cpu.c,v 1.36 2011/03/03 19:24:43 jruoho Exp $");
#include <sys/param.h>
#include <sys/cpu.h>
@ -78,6 +78,14 @@ static struct sysctllog *acpicpu_log = NULL;
static bool acpicpu_dynamic = true;
static bool acpicpu_passive = true;
static const struct {
const char *manu;
const char *prod;
const char *vers;
} acpicpu_quirks[] = {
{ "Supermicro", "PDSMi-LN4", "0123456789" },
};
static const char * const acpicpu_hid[] = {
"ACPI0007",
NULL
@ -89,11 +97,28 @@ CFATTACH_DECL_NEW(acpicpu, sizeof(struct acpicpu_softc),
static int
acpicpu_match(device_t parent, cfdata_t match, void *aux)
{
const char *manu, *prod, *vers;
struct cpu_info *ci;
size_t i;
if (acpi_softc == NULL)
return 0;
manu = pmf_get_platform("system-manufacturer");
prod = pmf_get_platform("system-product-name");
vers = pmf_get_platform("system-version");
if (manu != NULL && prod != NULL && vers != NULL) {
for (i = 0; i < __arraycount(acpicpu_quirks); i++) {
if (strcasecmp(acpicpu_quirks[i].manu, manu) == 0 &&
strcasecmp(acpicpu_quirks[i].prod, prod) == 0 &&
strcasecmp(acpicpu_quirks[i].vers, vers) == 0)
return 0;
}
}
ci = acpicpu_md_match(parent, match, aux);
if (ci == NULL)