diff options
Diffstat (limited to 'Documentation')
20 files changed, 101 insertions, 52 deletions
diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX index 5b5aba4..7306081 100644 --- a/Documentation/00-INDEX +++ b/Documentation/00-INDEX @@ -251,8 +251,6 @@ mono.txt - how to execute Mono-based .NET binaries with the help of BINFMT_MISC. moxa-smartio - file with info on installing/using Moxa multiport serial driver. -mtrr.txt - - how to use PPro Memory Type Range Registers to increase performance. mutex-design.txt - info on the generic mutex subsystem. namespaces/ diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt index d8b63d1..b8e8646 100644 --- a/Documentation/DMA-API.txt +++ b/Documentation/DMA-API.txt @@ -337,7 +337,7 @@ With scatterlists, you use the resulting mapping like this: int i, count = dma_map_sg(dev, sglist, nents, direction); struct scatterlist *sg; - for (i = 0, sg = sglist; i < count; i++, sg++) { + for_each_sg(sglist, sg, count, i) { hw_address[i] = sg_dma_address(sg); hw_len[i] = sg_dma_len(sg); } diff --git a/Documentation/DocBook/kernel-api.tmpl b/Documentation/DocBook/kernel-api.tmpl index b7b1482..f5696ba 100644 --- a/Documentation/DocBook/kernel-api.tmpl +++ b/Documentation/DocBook/kernel-api.tmpl @@ -364,6 +364,10 @@ X!Edrivers/pnp/system.c !Eblock/blk-barrier.c !Eblock/blk-tag.c !Iblock/blk-tag.c +!Eblock/blk-integrity.c +!Iblock/blktrace.c +!Iblock/genhd.c +!Eblock/genhd.c </chapter> <chapter id="chrdev"> diff --git a/Documentation/HOWTO b/Documentation/HOWTO index c2371c5..48a3955 100644 --- a/Documentation/HOWTO +++ b/Documentation/HOWTO @@ -77,7 +77,8 @@ documentation files are also added which explain how to use the feature. When a kernel change causes the interface that the kernel exposes to userspace to change, it is recommended that you send the information or a patch to the manual pages explaining the change to the manual pages -maintainer at mtk.manpages@gmail.com. +maintainer at mtk.manpages@gmail.com, and CC the list +linux-api@vger.kernel.org. Here is a list of files that are in the kernel source tree that are required reading: diff --git a/Documentation/SubmitChecklist b/Documentation/SubmitChecklist index da10e07..21f0795 100644 --- a/Documentation/SubmitChecklist +++ b/Documentation/SubmitChecklist @@ -67,6 +67,8 @@ kernel patches. 19: All new userspace interfaces are documented in Documentation/ABI/. See Documentation/ABI/README for more information. + Patches that change userspace interfaces should be CCed to + linux-api@vger.kernel.org. 20: Check that it all passes `make headers_check'. diff --git a/Documentation/block/deadline-iosched.txt b/Documentation/block/deadline-iosched.txt index c23cab1..7257676 100644 --- a/Documentation/block/deadline-iosched.txt +++ b/Documentation/block/deadline-iosched.txt @@ -30,12 +30,18 @@ write_expire (in ms) Similar to read_expire mentioned above, but for writes. -fifo_batch +fifo_batch (number of requests) ---------- -When a read request expires its deadline, we must move some requests from -the sorted io scheduler list to the block device dispatch queue. fifo_batch -controls how many requests we move. +Requests are grouped into ``batches'' of a particular data direction (read or +write) which are serviced in increasing sector order. To limit extra seeking, +deadline expiries are only checked between batches. fifo_batch controls the +maximum number of requests per batch. + +This parameter tunes the balance between per-request latency and aggregate +throughput. When low latency is the primary concern, smaller is better (where +a value of 1 yields first-come first-served behaviour). Increasing fifo_batch +generally improves throughput, at the cost of latency variation. writes_starved (number of dispatches) diff --git a/Documentation/cdrom/ide-cd b/Documentation/cdrom/ide-cd index 91c0dcc..2c558cd 100644 --- a/Documentation/cdrom/ide-cd +++ b/Documentation/cdrom/ide-cd @@ -145,8 +145,7 @@ useful for reading photocds. To play an audio CD, you should first unmount and remove any data CDROM. Any of the CDROM player programs should then work (workman, -workbone, cdplayer, etc.). Lacking anything else, you could use the -cdtester program in Documentation/cdrom/sbpcd. +workbone, cdplayer, etc.). On a few drives, you can read digital audio directly using a program such as cdda2wav. The only types of drive which I've heard support diff --git a/Documentation/cpu-freq/index.txt b/Documentation/cpu-freq/index.txt index ffdb532..3d0b915 100644 --- a/Documentation/cpu-freq/index.txt +++ b/Documentation/cpu-freq/index.txt @@ -35,11 +35,9 @@ Mailing List ------------ There is a CPU frequency changing CVS commit and general list where you can report bugs, problems or submit patches. To post a message, -send an email to cpufreq@lists.linux.org.uk, to subscribe go to -http://lists.linux.org.uk/mailman/listinfo/cpufreq. Previous post to the -mailing list are available to subscribers at -http://lists.linux.org.uk/mailman/private/cpufreq/. - +send an email to cpufreq@vger.kernel.org, to subscribe go to +http://vger.kernel.org/vger-lists.html#cpufreq and follow the +instructions there. Links ----- @@ -50,7 +48,7 @@ how to access the CVS repository: * http://cvs.arm.linux.org.uk/ the CPUFreq Mailing list: -* http://lists.linux.org.uk/mailman/listinfo/cpufreq +* http://vger.kernel.org/vger-lists.html#cpufreq Clock and voltage scaling for the SA-1100: * http://www.lartmaker.nl/projects/scaling diff --git a/Documentation/hwmon/adt7473 b/Documentation/hwmon/adt7473 index 2126de3..1cbf671 100644 --- a/Documentation/hwmon/adt7473 +++ b/Documentation/hwmon/adt7473 @@ -14,14 +14,14 @@ Description This driver implements support for the Analog Devices ADT7473 chip family. -The LM85 uses the 2-wire interface compatible with the SMBUS 2.0 +The ADT7473 uses the 2-wire interface compatible with the SMBUS 2.0 specification. Using an analog to digital converter it measures three (3) -temperatures and two (2) voltages. It has three (3) 16-bit counters for +temperatures and two (2) voltages. It has four (4) 16-bit counters for measuring fan speed. There are three (3) PWM outputs that can be used to control fan speed. A sophisticated control system for the PWM outputs is designed into the -LM85 that allows fan speed to be adjusted automatically based on any of the +ADT7473 that allows fan speed to be adjusted automatically based on any of the three temperature sensors. Each PWM output is individually adjustable and programmable. Once configured, the ADT7473 will adjust the PWM outputs in response to the measured temperatures without further host intervention. @@ -46,14 +46,6 @@ from the raw value to get the temperature value. The Analog Devices datasheet is very detailed and describes a procedure for determining an optimal configuration for the automatic PWM control. -Hardware Configurations ------------------------ - -The ADT7473 chips have an optional SMBALERT output that can be used to -signal the chipset in case a limit is exceeded or the temperature sensors -fail. Individual sensor interrupts can be masked so they won't trigger -SMBALERT. The SMBALERT output if configured replaces the PWM2 function. - Configuration Notes ------------------- @@ -61,8 +53,8 @@ Besides standard interfaces driver adds the following: * PWM Control -* pwm#_auto_point1_pwm and pwm#_auto_point1_temp and -* pwm#_auto_point2_pwm and pwm#_auto_point2_temp - +* pwm#_auto_point1_pwm and temp#_auto_point1_temp and +* pwm#_auto_point2_pwm and temp#_auto_point2_temp - point1: Set the pwm speed at a lower temperature bound. point2: Set the pwm speed at a higher temperature bound. diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface index 2d84573..6dbfd5e 100644 --- a/Documentation/hwmon/sysfs-interface +++ b/Documentation/hwmon/sysfs-interface @@ -329,6 +329,10 @@ power[1-*]_average Average power use Unit: microWatt RO +power[1-*]_average_interval Power use averaging interval + Unit: milliseconds + RW + power[1-*]_average_highest Historical average maximum power use Unit: microWatt RO @@ -354,6 +358,14 @@ power[1-*]_reset_history Reset input_highest, input_lowest, WO ********** +* Energy * +********** + +energy[1-*]_input Cumulative energy use + Unit: microJoule + RO + +********** * Alarms * ********** diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 1150444..329dcab 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -463,12 +463,6 @@ and is between 256 and 4096 characters. It is defined in the file Range: 0 - 8192 Default: 64 - disable_8254_timer - enable_8254_timer - [IA32/X86_64] Disable/Enable interrupt 0 timer routing - over the 8254 in addition to over the IO-APIC. The - kernel tries to set a sensible default. - hpet= [X86-32,HPET] option to control HPET usage Format: { enable (default) | disable | force } disable: disable HPET and use PIT instead @@ -1882,6 +1876,12 @@ and is between 256 and 4096 characters. It is defined in the file shapers= [NET] Maximal number of shapers. + show_msr= [x86] show boot-time MSR settings + Format: { <integer> } + Show boot-time (BIOS-initialized) MSR settings. + The parameter means the number of CPUs to show, + for example 1 means boot CPU only. + sim710= [SCSI,HW] See header of drivers/scsi/sim710.c. diff --git a/Documentation/video4linux/CARDLIST.em28xx b/Documentation/video4linux/CARDLIST.em28xx index 89c7f32..53449cb 100644 --- a/Documentation/video4linux/CARDLIST.em28xx +++ b/Documentation/video4linux/CARDLIST.em28xx @@ -46,7 +46,7 @@ 45 -> Pinnacle PCTV DVB-T (em2870) 46 -> Compro, VideoMate U3 (em2870) [185b:2870] 47 -> KWorld DVB-T 305U (em2880) [eb1a:e305] - 48 -> KWorld DVB-T 310U (em2880) + 48 -> KWorld DVB-T 310U (em2880) [eb1a:e310] 49 -> MSI DigiVox A/D (em2880) [eb1a:e310] 50 -> MSI DigiVox A/D II (em2880) [eb1a:e320] 51 -> Terratec Hybrid XS Secam (em2880) [0ccd:004c] diff --git a/Documentation/video4linux/gspca.txt b/Documentation/video4linux/gspca.txt index 0f03900..9a3e4d7 100644 --- a/Documentation/video4linux/gspca.txt +++ b/Documentation/video4linux/gspca.txt @@ -190,6 +190,7 @@ pac7311 093a:260f SnakeCam pac7311 093a:2621 PAC731x pac7311 093a:2624 PAC7302 pac7311 093a:2626 Labtec 2200 +pac7311 093a:262a Webcam 300k zc3xx 0ac8:0302 Z-star Vimicro zc0302 vc032x 0ac8:0321 Vimicro generic vc0321 vc032x 0ac8:0323 Vimicro Vc0323 diff --git a/Documentation/x86/00-INDEX b/Documentation/x86/00-INDEX new file mode 100644 index 0000000..dbe3377 --- /dev/null +++ b/Documentation/x86/00-INDEX @@ -0,0 +1,4 @@ +00-INDEX + - this file +mtrr.txt + - how to use x86 Memory Type Range Registers to increase performance diff --git a/Documentation/x86/i386/boot.txt b/Documentation/x86/boot.txt index 147bfe5..83c0033 100644 --- a/Documentation/x86/i386/boot.txt +++ b/Documentation/x86/boot.txt @@ -308,7 +308,7 @@ Protocol: 2.00+ Field name: start_sys Type: read -Offset/size: 0x20c/4 +Offset/size: 0x20c/2 Protocol: 2.00+ The load low segment (0x1000). Obsolete. diff --git a/Documentation/mtrr.txt b/Documentation/x86/mtrr.txt index c39ac39..cc071dc 100644 --- a/Documentation/mtrr.txt +++ b/Documentation/x86/mtrr.txt @@ -18,7 +18,7 @@ Richard Gooch The AMD K6-2 (stepping 8 and above) and K6-3 processors have two MTRRs. These are supported. The AMD Athlon family provide 8 Intel style MTRRs. - + The Centaur C6 (WinChip) has 8 MCRs, allowing write-combining. These are supported. @@ -87,7 +87,7 @@ reg00: base=0x00000000 ( 0MB), size= 64MB: write-back, count=1 reg01: base=0xfb000000 (4016MB), size= 16MB: write-combining, count=1 reg02: base=0xfb000000 (4016MB), size= 4kB: uncachable, count=1 -Some cards (especially Voodoo Graphics boards) need this 4 kB area +Some cards (especially Voodoo Graphics boards) need this 4 kB area excluded from the beginning of the region because it is used for registers. diff --git a/Documentation/x86/pat.txt b/Documentation/x86/pat.txt index 17965f9..c93ff5f 100644 --- a/Documentation/x86/pat.txt +++ b/Documentation/x86/pat.txt @@ -14,6 +14,10 @@ PAT allows for different types of memory attributes. The most commonly used ones that will be supported at this time are Write-back, Uncached, Write-combined and Uncached Minus. + +PAT APIs +-------- + There are many different APIs in the kernel that allows setting of memory attributes at the page level. In order to avoid aliasing, these interfaces should be used thoughtfully. Below is a table of interfaces available, @@ -26,38 +30,38 @@ address range to avoid any aliasing. API | RAM | ACPI,... | Reserved/Holes | -----------------------|----------|------------|------------------| | | | | -ioremap | -- | UC | UC | +ioremap | -- | UC- | UC- | | | | | ioremap_cache | -- | WB | WB | | | | | -ioremap_nocache | -- | UC | UC | +ioremap_nocache | -- | UC- | UC- | | | | | ioremap_wc | -- | -- | WC | | | | | -set_memory_uc | UC | -- | -- | +set_memory_uc | UC- | -- | -- | set_memory_wb | | | | | | | | set_memory_wc | WC | -- | -- | set_memory_wb | | | | | | | | -pci sysfs resource | -- | -- | UC | +pci sysfs resource | -- | -- | UC- | | | | | pci sysfs resource_wc | -- | -- | WC | is IORESOURCE_PREFETCH| | | | | | | | -pci proc | -- | -- | UC | +pci proc | -- | -- | UC- | !PCIIOC_WRITE_COMBINE | | | | | | | | pci proc | -- | -- | WC | PCIIOC_WRITE_COMBINE | | | | | | | | -/dev/mem | -- | UC | UC | +/dev/mem | -- | WB/WC/UC- | WB/WC/UC- | read-write | | | | | | | | -/dev/mem | -- | UC | UC | +/dev/mem | -- | UC- | UC- | mmap SYNC flag | | | | | | | | -/dev/mem | -- | WB/WC/UC | WB/WC/UC | +/dev/mem | -- | WB/WC/UC- | WB/WC/UC- | mmap !SYNC flag | |(from exist-| (from exist- | and | | ing alias)| ing alias) | any alias to this area| | | | @@ -68,7 +72,7 @@ pci proc | -- | -- | WC | and | | | | MTRR says WB | | | | | | | | -/dev/mem | -- | -- | UC_MINUS | +/dev/mem | -- | -- | UC- | mmap !SYNC flag | | | | no alias to this area | | | | and | | | | @@ -98,3 +102,35 @@ types. Drivers should use set_memory_[uc|wc] to set access type for RAM ranges. + +PAT debugging +------------- + +With CONFIG_DEBUG_FS enabled, PAT memtype list can be examined by + +# mount -t debugfs debugfs /sys/kernel/debug +# cat /sys/kernel/debug/x86/pat_memtype_list +PAT memtype list: +uncached-minus @ 0x7fadf000-0x7fae0000 +uncached-minus @ 0x7fb19000-0x7fb1a000 +uncached-minus @ 0x7fb1a000-0x7fb1b000 +uncached-minus @ 0x7fb1b000-0x7fb1c000 +uncached-minus @ 0x7fb1c000-0x7fb1d000 +uncached-minus @ 0x7fb1d000-0x7fb1e000 +uncached-minus @ 0x7fb1e000-0x7fb25000 +uncached-minus @ 0x7fb25000-0x7fb26000 +uncached-minus @ 0x7fb26000-0x7fb27000 +uncached-minus @ 0x7fb27000-0x7fb28000 +uncached-minus @ 0x7fb28000-0x7fb2e000 +uncached-minus @ 0x7fb2e000-0x7fb2f000 +uncached-minus @ 0x7fb2f000-0x7fb30000 +uncached-minus @ 0x7fb31000-0x7fb32000 +uncached-minus @ 0x80000000-0x90000000 + +This list shows physical address ranges and various PAT settings used to +access those physical address ranges. + +Another, more verbose way of getting PAT related debug messages is with +"debugpat" boot parameter. With this parameter, various debug messages are +printed to dmesg log. + diff --git a/Documentation/x86/i386/usb-legacy-support.txt b/Documentation/x86/usb-legacy-support.txt index 1894cdf..1894cdf 100644 --- a/Documentation/x86/i386/usb-legacy-support.txt +++ b/Documentation/x86/usb-legacy-support.txt diff --git a/Documentation/x86/x86_64/boot-options.txt b/Documentation/x86/x86_64/boot-options.txt index b0c7b6c..72ffb53 100644 --- a/Documentation/x86/x86_64/boot-options.txt +++ b/Documentation/x86/x86_64/boot-options.txt @@ -54,10 +54,6 @@ APICs apicmaintimer. Useful when your PIT timer is totally broken. - disable_8254_timer / enable_8254_timer - Enable interrupt 0 timer routing over the 8254 in addition to over - the IO-APIC. The kernel tries to set a sensible default. - Early Console syntax: earlyprintk=vga diff --git a/Documentation/x86/i386/zero-page.txt b/Documentation/x86/zero-page.txt index 169ad42..169ad42 100644 --- a/Documentation/x86/i386/zero-page.txt +++ b/Documentation/x86/zero-page.txt |
