WSL2-Linux-Kernel/Documentation
Lukas Wunner 156d7d4120 vga_switcheroo: Add handler flags infrastructure
Allow handlers to declare their capabilities and allow clients to
obtain that information. So far we have these use cases:

* If the handler is able to switch DDC separately, clients need to
  probe EDID with drm_get_edid_switcheroo(). We should allow them
  to detect a capable handler to ensure this function only gets
  called when needed.

* Likewise if the handler is unable to switch AUX separately, the active
  client needs to communicate link training parameters to the inactive
  client, which may then skip the AUX handshake and set up its output
  with these pre-calibrated values (DisplayPort specification v1.1a,
  section 2.5.3.3). Clients need a way to recognize such a situation.

The flags for the radeon_atpx_handler and amdgpu_atpx_handler are
initially set to 0, this can later on be amended with
  handler_flags |= VGA_SWITCHEROO_CAN_SWITCH_DDC;
when a ->switch_ddc callback is added.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=88861
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=61115
Tested-by: Lukas Wunner <lukas@wunner.de>
    [MBP  9,1 2012  intel IVB + nvidia GK107  pre-retina  15"]
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Reviewed-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/2b0d93ed6e511ca09e95e45e0b35627f330fabce.1452525860.git.lukas@wunner.de
2016-02-09 11:21:07 +01:00
..
ABI Initial roundup of 4.5 merge window patches 2016-01-23 18:45:06 -08:00
DocBook vga_switcheroo: Add handler flags infrastructure 2016-02-09 11:21:07 +01:00
EDID
PCI The documentation tree update for 4.1. Numerous fixes, the overdue removal 2015-04-18 11:10:49 -04:00
RCU documentation: Update RCU requirements based on expedited changes 2015-12-05 12:34:32 -08:00
accounting Documentation-getdelays: Apply a recommendation from "checkpatch.pl" in main() 2015-12-24 07:22:32 -07:00
acpi mfd: core: redo ACPI matching of the children devices 2015-10-26 15:25:53 +01:00
aoe
arm ARM: SoC multiplatform code changes for v4.5 2016-01-20 18:03:56 -08:00
arm64 arm64: Documentation: add list of software workarounds for errata 2015-12-11 17:33:21 +00:00
auxdisplay Documentation: use subdir-y to avoid unnecessary built-in.o files 2014-09-26 11:02:55 +02:00
backlight
blackfin Docs: blackfin: Use new switch macro SAMPLE_IRQ_TIMER instead of IRQ_TIMER5 2015-05-07 09:35:14 -06:00
block A relatively boring cycle in the docs tree. There's a few kernel-doc 2016-01-17 11:55:07 -08:00
blockdev zram: update documentation 2015-09-24 15:39:42 -06:00
bus-devices
cdrom
cgroup-v1 cgroup: rename cgroup documentations 2016-01-11 23:14:51 -05:00
cma cma: debug: document new debugfs interface 2015-04-14 16:49:00 -07:00
connector
console
cpu-freq Documentation: cpufreq: intel_pstate: enhance documentation 2016-01-05 13:47:37 +01:00
cpuidle
cris
crypto KEYS: Merge the type-specific data with the payload data 2015-10-21 15:18:36 +01:00
development-process Documentation: remove outdated references to the linux-next wiki 2014-10-28 09:06:11 -04:00
device-mapper dm verity: add ignore_zero_blocks feature 2015-12-10 10:39:03 -05:00
devicetree Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-02-01 15:56:08 -08:00
dmaengine Merge branch 'topic/async' into for-linus 2016-01-06 15:17:47 +05:30
driver-model driver-core: platform: Provide helpers for multi-driver modules 2015-10-05 05:02:40 +01:00
dvb [media] use https://linuxtv.org for LinuxTV URLs 2015-12-04 10:38:59 -02:00
early-userspace
extcon
fault-injection net: Add support for CHANGEUPPER notifier error injection 2015-12-03 11:49:23 -05:00
fb Documentation/fb: add documentation for sm712fb 2015-08-07 15:05:01 -07:00
features dma-mapping: always provide the dma_map_ops based implementation 2016-01-20 17:09:18 -08:00
filesystems mm: polish virtual memory accounting 2016-02-03 08:28:43 -08:00
firmware_class
fmc
fpga usage documentation for FPGA manager core 2015-10-07 18:07:20 +01:00
frv
gpio Doc: gpio: Fix typos in Documentation/gpio 2015-11-20 16:51:16 -07:00
hid HID: sensor: Update document for custom sensor 2015-04-10 22:22:56 +02:00
hwmon hwmon: (pmbus) Add client driver for LTC3815 2015-12-18 08:20:59 -08:00
i2c i2c: i801: add Intel Lewisburg device IDs 2015-11-20 16:22:21 +01:00
ia64 virtual: Documentation: simplify and generalize paravirt_ops.txt 2015-02-13 17:15:44 +10:30
ide
iio iio: Documentation: Add IIO configfs documentation 2015-12-03 18:19:28 +00:00
infiniband IB: remove in-kernel support for memory windows 2015-12-23 14:29:04 -05:00
input Input: add userio module 2015-10-27 18:55:31 -07:00
ioctl Doc: ioctl: Fix typos in Documentation/ioctl 2015-11-20 16:52:50 -07:00
isdn
ja_JP Documentation: translations: update linux cross reference link 2016-01-11 18:26:58 -07:00
kbuild kbuild: document recursive dependency limitation / resolution 2015-10-08 15:36:16 +02:00
kdump kernel: add panic_on_warn 2014-12-10 17:41:10 -08:00
ko_KR Documentation: translations: update linux cross reference link 2016-01-11 18:26:58 -07:00
laptops Move freefall program from Documentation/ to tools/ 2015-06-08 16:42:07 -06:00
leds Documentation: leds: Add description of brightness setting API 2016-01-04 09:57:31 +01:00
locking Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-11-03 16:10:43 -08:00
m68k
memory-devices
metag
mic misc: mic: Update MIC host daemon with COSM changes 2015-10-04 12:54:54 +01:00
mips
misc-devices Doc:misc-devices: Fix typo in Documentation/misc-devices 2015-09-18 10:04:24 -06:00
mmc mmc: core: Remove MMC_CLKGATE 2015-10-26 16:00:09 +01:00
mn10300
mtd Documentation: mtd: improve nand_ecc.txt for readability and correctness 2015-11-17 17:05:14 -08:00
namespaces
netlabel
networking net: change tcp_syn_retries documentation 2016-01-20 18:55:08 -08:00
nfc NFC: Fix typo in nfc-hci.txt 2015-06-08 23:15:45 +02:00
nios2 Documentation: Add documentation for Nios2 architecture 2014-12-08 12:56:06 +08:00
nvdimm libnvdimm: documentation clarifications 2015-11-12 09:55:23 -08:00
nvmem Documentation: nvmem: add nvmem api level and how-to doc 2015-08-05 13:43:45 -07:00
parisc
pcmcia pcmcia: Fix typo in locking documentation 2015-08-07 14:34:58 +02:00
phy
platform
power Merge branches 'pm-pci' and 'pm-core' 2016-01-12 01:10:52 +01:00
powerpc SCSI misc on 20150901 2015-09-02 12:22:54 -07:00
pps Doc: pps: Fix file name in pps.txt 2015-07-14 12:35:42 -06:00
prctl Documentation/prctl: don't build tsc tests when cross compiling 2015-06-22 16:05:04 -06:00
pti
ptp testptp: Silence compiler warnings on ppc64 2015-09-29 21:16:56 -07:00
rapidio
s390 s390/zcore: remove /sys/kernel/debug/zcore/mem 2015-11-27 09:24:12 +01:00
scheduler sched/dl/Documentation: Split Section 3 2015-05-19 08:39:21 +02:00
scsi st: allow debug output to be enabled or disabled via sysfs 2015-11-09 17:17:27 -08:00
security keys, trusted: seal with a TPM2 authorization policy 2015-12-20 15:27:13 +02:00
serial Documentation: improve line discipline method descriptions 2015-10-05 04:53:26 +01:00
sh
sound ASoC: img: Add documentation for SPDIF in controls 2015-11-16 10:06:58 +00:00
spi spi: tools: move spidev_test metadata 2015-11-30 12:14:12 +00:00
sysctl Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-01-22 10:24:03 -08:00
target target: use per-attribute show and store methods 2015-10-13 22:17:49 -07:00
thermal thermal: add description for integral_cutoff unit 2016-01-14 13:29:08 -07:00
timers documentation: Update NO_HZ_FULL interaction with POSIX timers 2015-02-26 11:57:29 -08:00
tpm
trace x86, tracing, perf: Add trace point for MSR accesses 2015-12-06 12:56:10 +01:00
usb The chipidea changes for v4.5-rc1 2015-12-26 16:59:14 -08:00
vDSO Documentation/vDSO: don't build tests when cross compiling 2015-06-22 16:04:57 -06:00
video4linux [media] media framework: rename pads init function to media_entity_pads_init() 2016-01-11 12:19:03 -02:00
virtual KVM doc: Fix KVM_SMI chapter number 2016-01-26 16:29:59 +01:00
vm Merge branch 'akpm' (patches from Andrew) 2016-01-17 12:58:52 -08:00
w1 w1: masters: omap_hdq: add support for 1-wire mode 2015-10-05 04:47:09 +01:00
watchdog watchdog: Drop pointer to watchdog device from struct watchdog_device 2016-01-11 21:53:59 +01:00
wimax
x86 Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-09-01 10:07:40 -07:00
xtensa
zh_CN [media] media framework: rename pads init function to media_entity_pads_init() 2016-01-11 12:19:03 -02:00
00-INDEX Update of Documentation/dmaengine/00-INDEX 2014-12-29 15:28:24 -07:00
BUG-HUNTING
Changes There is a nice new document from Neil on how pathname lookups work and 2015-11-05 15:59:24 -08:00
CodeOfConflict Code of Conflict 2015-02-27 11:44:24 -08:00
CodingStyle Documentation: fix typo in CodingStyle 2016-01-11 18:18:16 -07:00
DMA-API-HOWTO.txt dma-mapping: always provide the dma_map_ops based implementation 2016-01-20 17:09:18 -08:00
DMA-API.txt DMA-API: fix confusing sentence in Documentation/DMA-API.txt 2016-01-11 18:29:00 -07:00
DMA-ISA-LPC.txt
DMA-attributes.txt
HOWTO Documentation: HOWTO: update code cross reference link 2015-12-10 11:19:35 -07:00
IPMI.txt ipmi watchdog : add panic_wdt_timeout parameter 2015-11-16 06:28:43 -06:00
IRQ-affinity.txt
IRQ-domain.txt irqdomain: Documentation updates 2015-10-13 19:01:25 +02:00
IRQ.txt
Intel-IOMMU.txt iommu/vt-d: Fix link to Intel IOMMU Specification 2016-01-29 12:32:12 +01:00
Makefile spi: Move spi code from Documentation to tools 2015-11-23 14:54:01 +00:00
ManagementStyle
SAK.txt
SM501.txt
SecurityBugs
SubmitChecklist
SubmittingDrivers
SubmittingPatches A few more documentation patches that wandered in and have no reason to 2015-11-13 09:19:05 -08:00
VGA-softcursor.txt
adding-syscalls.txt Documentation: describe how to add a system call 2015-08-13 17:54:06 -06:00
applying-patches.txt Documentation: change "&" to "and" in Documentation/applying-patches.txt 2014-09-26 11:10:11 +02:00
assoc_array.txt
atomic_ops.txt locking/atomics, cmpxchg: Privatize the inclusion of asm/cmpxchg.h 2015-09-13 10:35:46 +02:00
bad_memory.txt
basic_profiling.txt
bcache.txt
binfmt_misc.txt binfmt_misc: touch up documentation a bit 2014-10-14 02:18:16 +02:00
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
bus-virt-phys-mapping.txt
cachetlb.txt rmap: drop support of non-linear mappings 2015-02-10 14:30:31 -08:00
cgroup-v2.txt Documentation: cgroup-v2: add memory.stat::sock description 2016-02-03 08:28:43 -08:00
circular-buffers.txt
clk.txt clk: change clk_ops' ->determine_rate() prototype 2015-07-27 18:12:01 -07:00
coccinelle.txt
cpu-hotplug.txt Documentation: cpu-hotplug: Fix sysfs mount instructions 2015-12-10 11:35:30 -07:00
cpu-load.txt
cputopology.txt Documentation: Update cputopology.txt 2015-05-27 15:22:15 +02:00
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt Doc: Change wikipedia's URL from http to https 2015-06-22 10:14:05 -06:00
dell_rbu.txt
devices.txt
digsig.txt
dma-buf-sharing.txt dma-buf: Remove range-based flush 2016-02-09 09:25:22 +01:00
dontdiff Documentation: dontdiff: remove media from dontdiff 2015-11-11 10:08:07 -07:00
dynamic-debug-howto.txt
edac.txt EDAC: Remove references to bluesmoke.sourceforge.net 2015-11-26 14:46:06 +01:00
efi-stub.txt
eisa.txt
email-clients.txt A few more documentation patches that wandered in and have no reason to 2015-11-13 09:19:05 -08:00
flexible-arrays.txt
futex-requeue-pi.txt doc: Fix misnamed FUTEX_CMP_REQUEUE_PI op constants 2015-01-19 12:05:32 +01:00
gcov.txt
gdb-kernel-debugging.txt scripts/gdb: add basic documentation 2015-02-17 14:34:54 -08:00
highuid.txt
hsi.txt
hw_random.txt hwrng: doc - Fix device node name reference /dev/hw_random => /dev/hwrng 2015-09-21 22:00:41 +08:00
hwspinlock.txt hwspinlock/core: add device tree support 2015-05-02 09:54:30 +03:00
init.txt
initrd.txt
intel_txt.txt
io-mapping.txt
io_ordering.txt
iostats.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kasan.txt mm, slub, kasan: enable user tracking by default with KASAN=y 2015-11-05 19:34:48 -08:00
kernel-doc-nano-HOWTO.txt Documenation: Update location of docproc.c 2015-07-14 12:36:39 -06:00
kernel-docs.txt Documentation: translations: update linux cross reference link 2016-01-11 18:26:58 -07:00
kernel-parameters.txt mm: warn about VmData over RLIMIT_DATA 2016-02-03 08:28:43 -08:00
kernel-per-CPU-kthreads.txt irq_poll: make blk-iopoll available outside the block layer 2015-12-11 11:52:24 -08:00
kmemcheck.txt Documentation: update the CONFIG_DEBUG_PAGEALLOC description 2015-03-20 07:41:55 -06:00
kmemleak.txt Doc: Change wikipedia's URL from http to https 2015-06-22 10:14:05 -06:00
kobject.txt kobject: grammar fix 2014-12-08 09:07:11 -05:00
kprobes.txt kprobes: Update Documentation/kprobes.txt 2015-03-20 07:41:55 -06:00
kref.txt
kselftest.txt Documentation: Update kselftest.txt 2015-09-24 15:51:53 -06:00
ldm.txt
local_ops.txt percpu: update local_ops.txt to reflect this_cpu operations 2014-12-13 12:42:53 -08:00
lockup-watchdogs.txt kernel/watchdog.c: add sysctl knob hardlockup_panic 2015-11-05 19:34:48 -08:00
logo.gif
logo.txt
lzo.txt Documentation: lzo: document part of the encoding 2014-09-28 11:08:00 +02:00
magic-number.txt Documentation/magic-number: Remove SCC_MAGIC 2015-05-13 15:39:04 -04:00
mailbox.txt Documentation: minor typo fix in mailbox.txt 2015-08-13 18:03:18 -06:00
md-cluster.txt md-cluster: update the documentation 2016-01-06 11:39:06 +11:00
md.txt doc:md: fix typo in md.txt. 2015-06-23 06:49:44 -06:00
memory-barriers.txt virtio: barrier rework+fixes 2016-01-18 16:44:24 -08:00
memory-hotplug.txt mem-hotplug: fix typo in Documentation/memory-hotplug.txt 2015-03-20 07:41:55 -06:00
men-chameleon-bus.txt Documentation: Minor changes to men-chameleon-bus.txt 2015-07-24 15:15:17 +02:00
module-signing.txt Move certificate handling to its own directory 2015-08-14 16:06:13 +01:00
mono.txt
nommu-mmap.txt fs: introduce f_op->mmap_capabilities for nommu mmap support 2015-01-20 14:02:58 -07:00
ntb.txt NTB: Rename Intel code names to platform names 2015-07-04 14:09:25 -04:00
numastat.txt
oops-tracing.txt livepatch: kernel: add TAINT_LIVEPATCH 2014-12-22 15:40:48 +01:00
padata.txt
parport-lowlevel.txt
parport.txt
percpu-rw-semaphore.txt
phy.txt phy: core: Add devm_of_phy_get_by_index to phy-core 2015-05-11 21:42:23 +05:30
pi-futex.txt
pinctrl.txt pinctrl: move strict option to pinmux_ops 2015-05-06 14:45:19 +02:00
pnp.txt
preempt-locking.txt x86/fpu: Rename math_state_restore() to fpu__restore() 2015-05-19 15:47:18 +02:00
printk-formats.txt printk-formats.txt: remove unimplemented %pT 2016-01-16 11:17:30 -08:00
pwm.txt
ramoops.txt pstore-ram: Allow optional mapping with pgprot_noncached 2014-12-11 13:38:31 -08:00
rbtree.txt documentation: fix small typo in rbtree.txt 2015-09-13 14:38:50 -06:00
remoteproc.txt remoteproc: introduce rproc_get_by_phandle API 2015-06-16 21:12:52 +03:00
rfkill.txt rfkill: document rfkill module parameters 2015-01-09 23:22:12 +01:00
robust-futex-ABI.txt
robust-futexes.txt
rpmsg.txt
rtc.txt Documentation, split up rtc.txt into documentation and test file 2015-03-24 22:01:58 -06:00
serial-console.txt
sgi-ioc4.txt
smsc_ece1099.txt
sparse.txt
stable_api_nonsense.txt
stable_kernel_rules.txt stable_kernel_rules.txt: Remove extra space after Cc: 2015-11-20 16:54:57 -07:00
static-keys.txt locking/static_keys: Fix up the static keys documentation 2015-09-15 07:12:06 +02:00
svga.txt
sysfs-rules.txt Documentation/sysfs-rules.txt: Add device attribute error code documentation 2014-09-19 14:44:51 -07:00
sysrq.txt mm, oom: do not panic for oom kills triggered from sysrq 2015-09-08 15:35:28 -07:00
this_cpu_ops.txt Docs: this_cpu_ops: remove redundant add forms 2014-09-26 11:03:00 +02:00
ubsan.txt UBSAN: run-time undefined behavior sanity checker 2016-01-20 17:09:18 -08:00
unaligned-memory-access.txt
unicode.txt
unshare.txt
vfio.txt vfio: powerpc/spapr: Support Dynamic DMA windows 2015-06-11 15:16:55 +10:00
vgaarbiter.txt
video-output.txt
vme_api.txt Documentation: mention vme_master_mmap() in VME API 2015-06-12 17:26:56 -07:00
volatile-considered-harmful.txt
workqueue.txt workqueue: fix trivial typo in Documentation/workqueue.txt 2015-05-05 09:50:38 -04:00
xillybus.txt xillybus: Move out of staging 2014-09-23 23:44:16 -07:00
xz.txt
zorro.txt