d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

acpi: Allow matching based on locators

Browse Source 
Allow wiring of unit numbers based any of the standard locators that
match.

Sponsored by:		Netflix
Reviewed by:		jhb
Differential Revision:	https://reviews.freebsd.org/D32787
This commit is contained in:
Warner Losh 2022-02-28 14:28:40 -07:00
parent 6837d9d7e8
commit dbee7944ba
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
sys/dev/acpica/acpi.c
View File

@ -1200,6 +1200,7 @@ static void
acpi_hint_device_unit(device_t acdev, device_t child, const char *name,
int *unitp)
{
device_location_cache_t *cache;
const char *s;
int line, unit;
bool matches;
@ -1209,6 +1210,7 @@ acpi_hint_device_unit(device_t acdev, device_t child, const char *name,
* name to see if one's resources are a subset of this device.
*/
line = 0;
cache = dev_wired_cache_init();
while (resource_find_dev(&line, name, &unit, "at", NULL) == 0) {
/* Must have an "at" for acpi or isa. */
resource_string_value(name, unit, "at", &s);
@ -1216,6 +1218,8 @@ acpi_hint_device_unit(device_t acdev, device_t child, const char *name,
if (strcmp(s, "acpi0") == 0 || strcmp(s, "acpi") == 0 ||
strcmp(s, "isa0") == 0 || strcmp(s, "isa") == 0)
matches = acpi_hint_device_matches_resources(child, name, unit);
else
matches = dev_wired_cache_match(cache, child, s);
if (matches) {
/* We have a winner! */
@ -1223,6 +1227,7 @@ acpi_hint_device_unit(device_t acdev, device_t child, const char *name,
break;
}
}
dev_wired_cache_fini(cache);
}
/*