| acpi_powerres.c (238199) | acpi_powerres.c (248415) |
|---|---|
| 1/*- 2 * Copyright (c) 2001 Michael Smith 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2001 Michael Smith 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> |
| 28__FBSDID("$FreeBSD: head/sys/dev/acpica/acpi_powerres.c 238199 2012-07-07 17:13:09Z eadler $"); | 28__FBSDID("$FreeBSD: head/sys/dev/acpica/acpi_powerres.c 248415 2013-03-17 07:28:17Z rpaulo $"); |
| 29 30#include "opt_acpi.h" 31#include <sys/param.h> 32#include <sys/kernel.h> 33#include <sys/malloc.h> 34#include <sys/bus.h> 35 36#include <contrib/dev/acpica/include/acpi.h> --- 5 unchanged lines hidden (view full) --- 42 * ACPI power resource management. 43 * 44 * Power resource behaviour is slightly complicated by the fact that 45 * a single power resource may provide power for more than one device. 46 * Thus, we must track the device(s) being powered by a given power 47 * resource, and only deactivate it when there are no powered devices. 48 * 49 * Note that this only manages resources for known devices. There is an | 29 30#include "opt_acpi.h" 31#include <sys/param.h> 32#include <sys/kernel.h> 33#include <sys/malloc.h> 34#include <sys/bus.h> 35 36#include <contrib/dev/acpica/include/acpi.h> --- 5 unchanged lines hidden (view full) --- 42 * ACPI power resource management. 43 * 44 * Power resource behaviour is slightly complicated by the fact that 45 * a single power resource may provide power for more than one device. 46 * Thus, we must track the device(s) being powered by a given power 47 * resource, and only deactivate it when there are no powered devices. 48 * 49 * Note that this only manages resources for known devices. There is an |
| 50 * ugly case where we may turn of power to a device which is in use because | 50 * ugly case where we may turn off power to a device which is in use because |
| 51 * we don't know that it depends on a given resource. We should perhaps 52 * try to be smarter about this, but a more complete solution would involve 53 * scanning all of the ACPI namespace to find devices we're not currently 54 * aware of, and this raises questions about whether they should be left 55 * on, turned off, etc. 56 */ 57 58static MALLOC_DEFINE(M_ACPIPWR, "acpipwr", "ACPI power resources"); --- 699 unchanged lines hidden --- | 51 * we don't know that it depends on a given resource. We should perhaps 52 * try to be smarter about this, but a more complete solution would involve 53 * scanning all of the ACPI namespace to find devices we're not currently 54 * aware of, and this raises questions about whether they should be left 55 * on, turned off, etc. 56 */ 57 58static MALLOC_DEFINE(M_ACPIPWR, "acpipwr", "ACPI power resources"); --- 699 unchanged lines hidden --- |