linux-stable/Documentation/driver-api/index.rst
Thomas Zimmermann 7283f862bd drm: Implement DRM aperture helpers under video/
Implement DRM's aperture helpers under video/ for sharing with other
sub-systems. Remove DRM-isms from the interface. The helpers track
the ownership of framebuffer apertures and provide hand-over from
firmware, such as EFI and VESA, to native graphics drivers.

Other subsystems, such as fbdev and vfio, also have to maintain ownership
of framebuffer apertures. Moving DRM's aperture helpers to a more public
location allows all subsystems to interact with each other and share a
common implementation.

The aperture helpers are selected by the various firmware drivers within
DRM and fbdev, and the VGA text-console driver.

The original DRM interface is kept in place for use by DRM drivers.

v3:
	* prefix all interfaces with aperture_ (Javier)
	* rework and simplify documentation (Javier)
	* rename struct dev_aperture to struct aperture_range
	* rebase onto latest DRM
	* update MAINTAINERS entry

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220622140134.12763-3-tzimmermann@suse.de
2022-06-27 11:07:55 +02:00

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========================================
The Linux driver implementer's API guide
========================================
The kernel offers a wide variety of interfaces to support the development
of device drivers. This document is an only somewhat organized collection
of some of those interfaces — it will hopefully get better over time! The
available subsections can be seen below.
.. class:: toc-title
Table of contents
.. toctree::
:maxdepth: 2
driver-model/index
basics
infrastructure
ioctl
early-userspace/index
pm/index
clk
device-io
dma-buf
device_link
component
message-based
infiniband
aperture
frame-buffer
regulator
reset
iio/index
input
usb/index
firewire
pci/index
cxl/index
spi
i2c
ipmb
ipmi
i3c/index
interconnect
devfreq
hsi
edac
scsi
libata
target
mailbox
mtdnand
miscellaneous
mei/index
mtd/index
mmc/index
nvdimm/index
w1
rapidio/index
s390-drivers
vme
80211/index
uio-howto
firmware/index
pin-control
gpio/index
md/index
media/index
misc_devices
nfc/index
dmaengine/index
slimbus
soundwire/index
thermal/index
fpga/index
acpi/index
auxiliary_bus
backlight/lp855x-driver.rst
connector
console
dcdbas
eisa
isa
isapnp
io-mapping
io_ordering
generic-counter
memory-devices/index
men-chameleon-bus
ntb
nvmem
parport-lowlevel
pps
ptp
phy/index
pwm
pldmfw/index
rfkill
serial/index
sm501
surface_aggregator/index
switchtec
sync_file
tty/index
vfio-mediated-device
vfio
vfio-pci-device-specific-driver-acceptance
xilinx/index
xillybus
zorro
hte/index
.. only:: subproject and html
Indices
=======
* :ref:`genindex`