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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-30 16:45:38 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-30 16:45:39 -0700 |
commit | a335750b9a039a9d4cd727cdccacfb90fd63c4e8 (patch) | |
tree | 8f3198984fb75fe494e771d9431f6799228623c5 /Documentation | |
parent | 10f3cb41d48ab30f5c754b30eea557371892b4c2 (diff) | |
parent | d326f44e5f2204c7a24db69bfc6dd3fe5f86182b (diff) | |
download | linux-a335750b9a039a9d4cd727cdccacfb90fd63c4e8.tar.bz2 |
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Pull ACPI & Power Management changes from Len Brown:
- ACPI 5.0 after-ripples, ACPICA/Linux divergence cleanup
- cpuidle evolving, more ARM use
- thermal sub-system evolving, ditto
- assorted other PM bits
Fix up conflicts in various cpuidle implementations due to ARM cpuidle
cleanups (ARM at91 self-refresh and cpu idle code rewritten into
"standby" in asm conflicting with the consolidation of cpuidle time
keeping), trivial SH include file context conflict and RCU tracing fixes
in generic code.
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (77 commits)
ACPI throttling: fix endian bug in acpi_read_throttling_status()
Disable MCP limit exceeded messages from Intel IPS driver
ACPI video: Don't start video device until its associated input device has been allocated
ACPI video: Harden video bus adding.
ACPI: Add support for exposing BGRT data
ACPI: export acpi_kobj
ACPI: Fix logic for removing mappings in 'acpi_unmap'
CPER failed to handle generic error records with multiple sections
ACPI: Clean redundant codes in scan.c
ACPI: Fix unprotected smp_processor_id() in acpi_processor_cst_has_changed()
ACPI: consistently use should_use_kmap()
PNPACPI: Fix device ref leaking in acpi_pnp_match
ACPI: Fix use-after-free in acpi_map_lsapic
ACPI: processor_driver: add missing kfree
ACPI, APEI: Fix incorrect APEI register bit width check and usage
Update documentation for parameter *notrigger* in einj.txt
ACPI, APEI, EINJ, new parameter to control trigger action
ACPI, APEI, EINJ, limit the range of einj_param
ACPI, APEI, Fix ERST header length check
cpuidle: power_usage should be declared signed integer
...
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/ABI/testing/sysfs-firmware-acpi | 20 | ||||
-rw-r--r-- | Documentation/acpi/apei/einj.txt | 8 | ||||
-rw-r--r-- | Documentation/cpuidle/sysfs.txt | 5 |
3 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-firmware-acpi b/Documentation/ABI/testing/sysfs-firmware-acpi index 4f9ba3c2fca7..dd930c8db41f 100644 --- a/Documentation/ABI/testing/sysfs-firmware-acpi +++ b/Documentation/ABI/testing/sysfs-firmware-acpi @@ -1,3 +1,23 @@ +What: /sys/firmware/acpi/bgrt/ +Date: January 2012 +Contact: Matthew Garrett <mjg@redhat.com> +Description: + The BGRT is an ACPI 5.0 feature that allows the OS + to obtain a copy of the firmware boot splash and + some associated metadata. This is intended to be used + by boot splash applications in order to interact with + the firmware boot splash in order to avoid jarring + transitions. + + image: The image bitmap. Currently a 32-bit BMP. + status: 1 if the image is valid, 0 if firmware invalidated it. + type: 0 indicates image is in BMP format. + version: The version of the BGRT. Currently 1. + xoffset: The number of pixels between the left of the screen + and the left edge of the image. + yoffset: The number of pixels between the top of the screen + and the top edge of the image. + What: /sys/firmware/acpi/interrupts/ Date: February 2008 Contact: Len Brown <lenb@kernel.org> diff --git a/Documentation/acpi/apei/einj.txt b/Documentation/acpi/apei/einj.txt index e7cc36397217..e20b6daaced4 100644 --- a/Documentation/acpi/apei/einj.txt +++ b/Documentation/acpi/apei/einj.txt @@ -53,6 +53,14 @@ directory apei/einj. The following files are provided. This file is used to set the second error parameter value. Effect of parameter depends on error_type specified. +- notrigger + The EINJ mechanism is a two step process. First inject the error, then + perform some actions to trigger it. Setting "notrigger" to 1 skips the + trigger phase, which *may* allow the user to cause the error in some other + context by a simple access to the cpu, memory location, or device that is + the target of the error injection. Whether this actually works depends + on what operations the BIOS actually includes in the trigger phase. + BIOS versions based in the ACPI 4.0 specification have limited options to control where the errors are injected. Your BIOS may support an extension (enabled with the param_extension=1 module parameter, or diff --git a/Documentation/cpuidle/sysfs.txt b/Documentation/cpuidle/sysfs.txt index 50d7b1642759..9d28a3406e74 100644 --- a/Documentation/cpuidle/sysfs.txt +++ b/Documentation/cpuidle/sysfs.txt @@ -36,6 +36,7 @@ drwxr-xr-x 2 root root 0 Feb 8 10:42 state3 /sys/devices/system/cpu/cpu0/cpuidle/state0: total 0 -r--r--r-- 1 root root 4096 Feb 8 10:42 desc +-rw-r--r-- 1 root root 4096 Feb 8 10:42 disable -r--r--r-- 1 root root 4096 Feb 8 10:42 latency -r--r--r-- 1 root root 4096 Feb 8 10:42 name -r--r--r-- 1 root root 4096 Feb 8 10:42 power @@ -45,6 +46,7 @@ total 0 /sys/devices/system/cpu/cpu0/cpuidle/state1: total 0 -r--r--r-- 1 root root 4096 Feb 8 10:42 desc +-rw-r--r-- 1 root root 4096 Feb 8 10:42 disable -r--r--r-- 1 root root 4096 Feb 8 10:42 latency -r--r--r-- 1 root root 4096 Feb 8 10:42 name -r--r--r-- 1 root root 4096 Feb 8 10:42 power @@ -54,6 +56,7 @@ total 0 /sys/devices/system/cpu/cpu0/cpuidle/state2: total 0 -r--r--r-- 1 root root 4096 Feb 8 10:42 desc +-rw-r--r-- 1 root root 4096 Feb 8 10:42 disable -r--r--r-- 1 root root 4096 Feb 8 10:42 latency -r--r--r-- 1 root root 4096 Feb 8 10:42 name -r--r--r-- 1 root root 4096 Feb 8 10:42 power @@ -63,6 +66,7 @@ total 0 /sys/devices/system/cpu/cpu0/cpuidle/state3: total 0 -r--r--r-- 1 root root 4096 Feb 8 10:42 desc +-rw-r--r-- 1 root root 4096 Feb 8 10:42 disable -r--r--r-- 1 root root 4096 Feb 8 10:42 latency -r--r--r-- 1 root root 4096 Feb 8 10:42 name -r--r--r-- 1 root root 4096 Feb 8 10:42 power @@ -72,6 +76,7 @@ total 0 * desc : Small description about the idle state (string) +* disable : Option to disable this idle state (bool) * latency : Latency to exit out of this idle state (in microseconds) * name : Name of the idle state (string) * power : Power consumed while in this idle state (in milliwatts) |