Commit Graph

210 Commits

Author SHA1 Message Date
Christian Helmuth
dfc1b97fa2 depot: update recipe hashes 2023-05-31 09:42:19 +02:00
Christian Helmuth
583f2d6a36 depot: update recipe hashes 2023-05-30 12:13:34 +02:00
Josef Söntgen
497c8b0922 wifi: provide WPA3-personal support
This commit introduces preliminary support for joining networks secured
via WPA3-personal. So far it was only tested with the one OpenWRT AP
configured for WPA3 (see excerpt below) where it WPA3-only as well as
WPA2/WPA3 mixed worked fine.

Scan results excerpt:

00:11:22:33:44:55    5180    -45     [WPA2-SAE-CCMP][SAE-H2E][ESS][UTF-8]    PewPew
00:11:22:33:44:55    2412    -67     [WPA2-PSK+SAE+PSK-SHA256-CCMP][SAE-H2E][ESS][UTF-8]     PewPew2

Issue #4861.
2023-05-30 12:03:33 +02:00
Josef Söntgen
cfd3be675f pc_wifi: enable RTL8192CE support in rtlwifi
Issue #4861.
2023-05-30 12:03:33 +02:00
Josef Söntgen
080b0fb9b3 dde_linux: update wpa_supplicant to version 2.10
The supplicant is updated to the current release and is now downloaded
as archive rather than pulled from git. For the time being 'libnl' is
still kept at 3.2.25 as the current 3.7.0 release relies on more Linux
infrastructure that our integration does not provide.

Issue #4861.
2023-05-30 12:03:33 +02:00
Josef Söntgen
ea0a692879 wifi: get firmware from tar archive
This commit changes the firmware handling from requesting each
firmware file as a ROM module that is checked against a list of
known images (including their size) to requesting each file via
the local VFS of the 'wifi_drv'. This allows for using the original
probing mechanism that tries to select a matching firmware version.

The 'repos/dde_linux/src/drivers/wifi/README' file contains more
detailed information on how to configure the driver.

Issue #4861.
2023-05-30 12:03:33 +02:00
Josef Söntgen
3ba070e5e4 pc_wifi: implement __crypto_xor generated dummy
This function is called when decrypting RX frames on the CPU on 32 bit
platforms. Since the frames are normally decrypted by the wireless LAN
device and this code path is triggered rather infrequently the byte-wise
implementation should not pose a performance risk.

So far it was only encounter with a 7260 device when running netperf.

Issue #4861.
2023-05-30 12:03:33 +02:00
Josef Söntgen
d5710d9de3 Move 'wifi' driver to dde_linux repository
The bulk of the driver code now lives in the 'dde_linux' repository,
which is available on all platforms, from where it can be referenced by
other repositories.

The 'wifi_drv' binary was delegated to a generic harness that includes
all configuration and management functionality shared by all wireless
device driver components, e.g., the wpa_supplicant. The code of the
device driver emulation environment is located in 'src/lib/wifi'. It
is referenced by the platform-specific driver library that resides in
the corresponding platform repository. The runtime configuration needs
to point the driver to proper driver library.

The platform-specific library is in charge of orchestrating the contrib
source utilized by the driver as well as providing the 'source.list'
and 'dep.list' files. It must include the generic library snippet
'repos/dde_linux/lib/wifi.inc' that deals with managing the emulation
environment code.

The 'repos/dde_linux/src/drivers/wifi/README' file contains more
detailed information on how to deploy the driver.

Issue #4861.
2023-05-30 12:03:32 +02:00
Josef Söntgen
6727b5ea49 dde_linux: promote PC specific additions
Issue #4861.
2023-05-30 12:03:32 +02:00
Alexander Boettcher
1f2dc78feb intel/display: replace intel_fbdev with drm/kms
Fixes #4806
2023-05-30 12:03:30 +02:00
Sebastian Sumpf
69d3d83930 lx_emul: set minimum alignment of allocations to 16 byte
FPU allocations on x86/ARM require a minimum alignment or may raise
faults (#GP or general protection in the x86 case).
2023-05-30 12:03:28 +02:00
Stefan Kalkowski
97e3572844 lx_emul: use devio API for USB driver operations
Fix genodelabs/genode#4795
2023-05-08 15:55:34 +02:00
Christian Helmuth
4a5d31e248 depot: update recipe hashes 2023-05-08 15:53:05 +02:00
Christian Helmuth
97070620af depot: update recipe hashes 2023-04-28 14:46:11 +02:00
Christian Helmuth
e9a497abe4 depot: update recipe hashes 2023-04-26 11:58:16 +02:00
Alexander Boettcher
38f4b15df1 intel_fb: set default brightness of connector
which is unconfigured to 70%

Issue #4820
2023-04-26 11:58:15 +02:00
Josef Söntgen
8f91f119b8 wifi: remove firmware library
The library is merely an historical artifact and the raw archive is
better used in its place.

Issue #4813
2023-04-26 11:58:14 +02:00
Josef Söntgen
2b4246c59b lib/symbols/wifi: add symbols file for ABI so
Add symbols file for the wifi shared-object.

Issue #4813
2023-04-26 11:58:14 +02:00
Josef Söntgen
6c36a58bb7 lib/wifi: remove unused symbols from symbol.map
Remove symboles that are no longer required.

Issue #4813
2023-04-26 11:58:14 +02:00
Josef Söntgen
0b28c9ae6f lib/vfs/wifi: remove dependency on wifi library
The wifi VFS plugin is solely there to provide a hook for calling
'Lx_kit::initialize()' prior to the static ctors. As the corresponding
symbol can be resolved at run-time there is no need to add the
library as a build-time dependency.

Issue #4813
2023-04-26 11:58:14 +02:00
Josef Söntgen
e6ee7d3d4a wifi: provide platform specific DTB access
The device-tree binary is normally required on ARM-based platforms
where as on x86 it is omitted. The platform-specific DTB helper
provides a generic interface for accssing the DTB and needs to be
implemented on each platform.

Issue #4813
2023-04-26 11:58:14 +02:00
Josef Söntgen
eaaedb6ae8 wifi: defer supplicant start-up
The SDIO connected wireless device on the PinePhone is not available
on start-up, which leads to the supplicant failing to initalize
'wlan0'. Normally the supplicant would be used in a way that handling
devices that appear at run-time happens gracefully.

Rather than supporting this behavior we defer the start-up of the
supplicant until the device could be openend successfully for now.

Issue #4813
2023-04-26 11:58:14 +02:00
Josef Söntgen
0b08ae09c4 wifi: check 'lx_get_mac_addr' before reporting
The MAC address device report should be published once the device is
available. Since this may happen at a later time we have to check the
call.

Issue #4813
2023-04-26 11:58:14 +02:00
Stefan Kalkowski
8ae5ae76fb wifi: support building for ARM64
This commit introduces support for building the WLAN driver for ARM
platforms. It makes the WPA supplicant and its support libraries
available for all platforms. It also seperates the PCI parts to
accommodate platforms where other bus protocols are used.

Issue #4813
2023-04-26 11:58:14 +02:00
Josef Söntgen
56d366995c wifi/pc: add ath9k driver
The driver was only tested with an "Atheros AR9462 Rev:2" [168c:0034]
device using the 'wifi.run' run script.

Note: for it to work MSI may not be used as otherwise interrupts do not
work. Using an IOMMU leads to the following fault:

[ 0] IOMMU:0xffffffff817eb0b0 FRR:0 FR:0x22 BDF:4:0:0 FI:0xb0000000000000 (0)

Issue #4813
2023-04-26 11:58:14 +02:00
Josef Söntgen
e0d6e2e5a7 wifi: guard 6.1.x code
Needed for drivers still implemented using Linux 5.x.x.

Issue #4813
2023-04-26 11:58:14 +02:00
Christian Helmuth
b5f79756b3 depot: update recipe hashes 2023-04-17 14:48:30 +02:00
Josef Söntgen
1041ed8773 wifi: use latest available firmware
This commit updates the used firmware images for the iwlwifi device
to latest available ones (supported by the current 6.1.x driver).
It also removes old firmware images that by now are not used anymore.

Fixes #4807.
2023-04-17 14:48:30 +02:00
Stefan Kalkowski
2269f42e17 lx_emul: update Linux port to 6.1.20
Fix genodelabs/genode#4798
2023-04-17 14:48:24 +02:00
Christian Helmuth
6a80b4bd17 dde_linux: move test/driver_time to virt_linux
Fixes #4775
2023-04-17 14:48:23 +02:00
Alexander Boettcher
807e2a1eb4 test/driver_time: adjust output to headline
Issue #4775
2023-04-17 14:48:23 +02:00
Alexander Boettcher
f4f292d22f test/driver_time: add wifi testcase
Issue #4775
2023-04-17 14:48:23 +02:00
Christian Helmuth
4016c799f2 lx_emul: move shadowed random.c from pc to generic
Issue #4774
2023-04-17 14:48:23 +02:00
Christian Helmuth
73771669f1 depot: update recipe hashes 2023-03-13 14:32:54 +01:00
Stefan Kalkowski
6a7a30ceaa lx_emul: unify udelay implementation
Implement udelay for all architectures within common lx_emul code,
remove driver-specific version.

Always do busy looping in udelay and use cpu_relax()
like the original Linux code. Thereby, we profit from architecture specific
instructions (cpu cool down), and jiffies are updated if irqs are on.

Ref genodelabs/genode#4778
2023-03-13 14:32:37 +01:00
Stefan Kalkowski
50541c68ec lx_emul: shadow cpu_relax to update jiffies
There are rare use-cases where cpu_relax is used inside a busy loop
(i2c bus functions), which only will break when the jiffies counter
reaches a specific value.
Because of the cooperative scheduling done in lx_emul, no timer
interrupt will break such a loop. As a workaround, we check for
necessary jiffies updates inside cpu_relax if interrupts are enabled.

Ref genodelabs/genode#4778
2023-03-13 14:32:37 +01:00
Josef Söntgen
23cc96e661 wifi/pc: add firmware for the Intel AX210 2023-03-13 14:32:37 +01:00
Josef Söntgen
487aad6db1 wifi: allow driver dump in error case
This commit implements dummies that would otherwise trigger a
'generated dummy' call that stops the driver.
2023-03-01 16:30:00 +01:00
Alexander Boettcher
98fa0a1ad2 wifi: don't use kzalloc directly
Avoid using wrong pointer when calling free_page() which causes
otherwise memory corruption.
2023-03-01 16:29:53 +01:00
Christian Helmuth
e265cf6d49 depot: update recipe hashes 2023-02-27 08:22:51 +01:00
Christian Helmuth
73f7f8aef6 dde_linux: generalize kmalloc_order() implementation 2023-02-27 08:22:48 +01:00
Christian Helmuth
21a9527686 pc/wifi: remove redundant Genode:: prefix 2023-02-27 08:22:46 +01:00
Christian Helmuth
de9ea43616 dde_linux: remove custom lx_backtrace (use lx_emul_backtrace) 2023-02-27 08:22:46 +01:00
Christian Helmuth
52fb4eee5f pc/wifi: restore optional MAC-address reporting
Issue #4133
2023-02-27 08:22:46 +01:00
Alexander Boettcher
0724db2d80 sel4: avoid out_of* in several run scripts
caused by platform_drv and report_rom
2023-02-27 08:22:45 +01:00
Josef Söntgen
578a8c9918 wifi/pc: add rtlwifi driver
Due to lacking hardware access the driver was test with one RTL8188EE
based device, namely [10ec:8179] (rev 01), only. As the access to the
PCI config space is restricted the driver loads the non power-saving
FW and the driver port is therefor only tested with that. The
accesses are documented should we choose to support them one way or
another later on.

The 'wifi.run' run script as well as Sculpt served as testing ground
where the driver worked fine so far.

Fixes #4714.
2023-02-27 08:20:45 +01:00
Christian Helmuth
25eac6b9e6 depot: update recipe hashes 2023-01-24 12:07:33 +01:00
Tomasz Gajewski
d33139c40a enable ccache for reference Linux kernel
Genode build system allows to easily enable 'ccache' for builds. This
change allows to enable using 'ccache' also for build of reference
Linux kernel used during porting device drivers.

To enable 'ccache' it is enough to pass value of 'CC' variable when
executing Linux build but this build by default depends on time when it
is built which causes 'ccache' misses. To solve this issue additional
flags are passed to make build independent from time, current user and
host on which build is performed.

Issue #4718
2023-01-24 12:07:32 +01:00
Alexander Boettcher
5f0ba7d722 intel_fb: handle rapid config change gracefully
In case of very rapid config ROM change (<300ms), the linux driver may still
be in progress of applying the previous change (e.g. switching connector on/off).

During this progress all tasks may become not runnable (waiting for IRQ/timeouts
until hardware state settles), the newest config ROM change/signal gets
dispatched, which lead to continuing the previous change request, but not
to re-starting/re-applying the new config change. To avoid this situation,
explicitly track whether a previous config change was finished and track if an
interim config change request came in. If so, re-start the lx_user
task with the newest config change.

Fixes #4721
2023-01-24 12:07:32 +01:00
Christian Helmuth
bccc57bb29 Adapt run scripts for Intel Xe GPU 2023-01-24 12:07:29 +01:00
Christian Helmuth
6d14f5442e lx_emul: provide more pci functions
- pci_dev_present() based on devices on bus
- pci_request_regions() as dummy
- pci_release_regions() as dummy
2023-01-24 12:07:29 +01:00
Christian Helmuth
b033b30f95 depot: update recipe hashes 2022-11-29 12:32:49 +01:00
Stefan Kalkowski
f6825eea5f pci_decode: increase default ram quota
To circumvent problems of the page-table entries getting short on sel4,
increase the RAM quota for this component in all run-scripts.

Fix #4686
2022-11-29 12:29:57 +01:00
Stefan Kalkowski
10aa5ebf03 pci_decode: report devices from ACPI info
Although we do not have the full ACPI information parsed yet, to
announce non-PCI devices derived from the ACPI tables, the device
description of the assumed devices is now integral-part of pci_decode.
Formerly, the information was gained separatedly as boot-module, whereby
we lost synchronization in between ACPI/PCI parsing, BIOS handover, and
PS/2 emulation code already acting.
2022-11-29 12:29:57 +01:00
Christian Helmuth
c58d799f16 depot: update recipe hashes 2022-11-17 08:00:37 +01:00
Benjamin Lamowski
0e9a49d1cf wifi/pc: add firmware for the Intel AX211
Lenovo Thinkpads with 12th gen Intel i7 CPUs such as the X1 Nano G2 may
contain such a wifi card.

Issue #4663
2022-11-17 08:00:37 +01:00
Benjamin Lamowski
04efe88044 wifi/pc: add support for loading PNVM files
Intel wifi cards in the AX210 family need additional PNVM firmware to
function properly. Enable the bundling and loading of *.pnvm files.

Issue #4663
2022-11-17 08:00:37 +01:00
Benjamin Lamowski
bcea2a958e wifi/pc: implement firmware requests without warning
Until now, requesting optional blobs such as 'iwl-debug-yoyo.bin' has
just failed silently. To support desired blobs such as PNVM firmware,
implement the loading of optional firmware while preserving the nowarn
characteristics of the function.

Issue #4663
2022-11-17 08:00:37 +01:00
Christian Helmuth
a89eb5e7e3 Increase acpi_drv RAM/CAP quota in USB tests
The amount of 7M/350 matches repos/gems/sculpt/drivers/pc.
2022-11-17 08:00:37 +01:00
Christian Helmuth
a579e92400 wifi.run: configure /dev/urandom as libc RNG 2022-11-17 08:00:36 +01:00
Alexander Boettcher
eb318d5ceb intel_fb: handle too large framebuffer allocation
In case the allocation fails for the largest possible connector mode,
try smaller modes. Additional add option to specify maximal resolution.

Issue #4659
2022-11-17 08:00:35 +01:00
Alexander Boettcher
72217a6771 intel_fb: support larger resolutions
Increase "assumed" internal kernel memory size based on available memory
to support allocation of framebuffer larger than 16M, which was before
hardcoded.

Issue #4659
2022-11-17 08:00:35 +01:00
Alexander Boettcher
5df68922eb linux/pc: enable IOMMU config for intel fb
to apply scanout scratch page GTT workaround

drivers/gpu/drm/i915/gt/intel_ggtt.c
 -> gen8_gmch_probe() -> intel_scanout_needs_vtd_wa(i915)

Fixes #4659
2022-11-17 08:00:35 +01:00
Christian Helmuth
9079a083d2 depot: update recipe hashes 2022-10-13 12:35:27 +02:00
Christian Helmuth
847266d027 depot: update recipe hashes 2022-10-12 14:31:50 +02:00
Stefan Kalkowski
bc1e231775 platform_drv: implement PCI powering and reset
Ref genodelabs/genode#4578
2022-10-12 12:09:37 +02:00
Stefan Kalkowski
1504041c82 pc_platform_drv: introduce pc-specific driver
This driver observes a "system" ROM, as well as the acpi ROM to implement
reset functionality.

Ref genodelabs/genode#4578
2022-10-12 12:09:35 +02:00
Norman Feske
dc228b952a intel_fb_drv: add gpu/drm/drm_scdc_helper.c
With this patch, the Dell UltraSharp 4K display works in principle when
connected via HDMI to a Lenovo x260 laptop.

Fixes #4630
2022-10-12 12:09:35 +02:00
Norman Feske
a630563cbc intel_fb_drv: add kvfree_call_rcu to lx_emul.c
Issue #4630
2022-10-12 12:09:35 +02:00
Josef Söntgen
427bd93921 wifi/pc: add FW image for new so devices
The Framework laptop with the 12the Generation CPU contains such a
device.

Fixes #4626.
2022-10-12 12:09:35 +02:00
Stefan Kalkowski
85e69f6882 driver_time.run: remove legacy platform_drv
Ref genodelabs/genode#4578
2022-10-12 12:09:34 +02:00
Stefan Kalkowski
c7c460f6e0 os: add include/pci/* to os api
Ref genodelabs/genode#4578
2022-10-12 12:09:34 +02:00
Stefan Kalkowski
5528434fb6 lx_kit & lx_emul: use generic platform API
* Remove wrapper for legacy x86 platform API
* Move PCI configuration space quirks to corresponding driver
  (pc_usb_host_drv, pc_wifi_drv, pc_intel_fb_drv)
* Adapt driver test run-scripts to changed configuration

Ref genodelabs/genode#4578
2022-10-12 12:09:33 +02:00
Stefan Kalkowski
42a46b75f1 depot: add recipe for pc devices rom
Ref genodelabs/genode#4578
2022-10-12 11:59:09 +02:00
Christian Helmuth
3f1870841c depot: update recipe hashes 2022-09-21 12:19:10 +02:00
Christian Helmuth
f0e9881c7e intel_fb: prevent compiler warning 2022-09-19 14:00:33 +02:00
Norman Feske
dd9e12601e Remove pseudo targets for building shared libs
Thanks to the change "build: support library builds via lib/<libname>",
shared libraries can now be built directly by the build system.

Issue #4599
2022-09-19 14:00:32 +02:00
Christian Helmuth
4dddc41b71 depot: update recipe hashes 2022-08-31 09:32:09 +02:00
Christian Helmuth
44e2cd14a0 depot: update recipe hashes 2022-08-17 12:03:26 +02:00
Alexander Boettcher
e2b61231ae pc: avoid use usleep_range in m/udelay emulation
m/udelay is called with closed interrupts. Linux contrib code expects no
other task to be run respectively to be re-scheduled. usleep_range leads to
executing other tasks, which causes assertions in "spinlock taken twice" or
"unexpected preempt count" errors, seen on runtime with wifi_drv and intel_fb.
The assertion triggered with the changes by #4562.
2022-08-10 13:33:03 +02:00
Stefan Kalkowski
89f9e7a3ee lx_emul: consolidate SMP + NO_HZ_IDLE
* Move common SMP and NO_HZ_IDLE variables and functions into
  generic lx_emul shadow implementations, and integrate them
  into the common lx_emul import rules
* Enable SMP and NO_HZ_IDLE within virt_linux kernel configuration
* Adapt pc drivers and wireguard accordingly
* Use original Linux softirq implementation in wireguard
* Remove erroneous softirq shadow implementation

Ref genodelabs/genode#4540
Ref genodelabs/genode#4562
2022-08-10 13:33:03 +02:00
Alexander Boettcher
3f69457a94 pc/intel: add intel_fb test to autopilot 2022-08-10 13:33:03 +02:00
Stefan Kalkowski
596c20c199 pc: enable SMP and softirq/tasklets in lx_emul
Enables symetric-multi-processor support in the Linux kernel configuration
used as base for the driver ports for PC. This is done to be compliant with
common usage of x86 drivers today.
Moreover, this commit uses the original kernel source for softirq/tasklet
implementation to get rid of the insufficient shadow implementation
in the lx_emul sources.

Ref genodelabs/genode#4562
2022-08-10 13:33:02 +02:00
Alexander Boettcher
b03cb94b43 pc: add linux driver timer test
The test runs as lx_user task and uses several *delay and wait queue test
cases happened to be used in real ported linux drivers. The test shows
the time spent with several time sources, e.g. jiffies, rdtsc,
lx_time_counter_count etc.

Issue #4540
2022-08-10 13:33:01 +02:00
Alexander Boettcher
46b487c2f7 pc: consolidate __const_udelay for linux drivers
Use common implementation used by wifi and (not merged) audio driver.
Avoid usage of lib/delay.c since lpj and loop_for_jiffies are not calibrated
for the ported drivers as done on native Linux during boot and leads to wrong
delays for usb and intel_fb.

Issue #4540
2022-08-10 13:33:01 +02:00
Alexander Boettcher
7b4556e546 intel_fb: remove schedule_timeout wrap
Issue #4540
2022-08-10 13:33:01 +02:00
Alexander Boettcher
9ecbe51e34 pc_linux: enable NO_HZ_IDLE
the option enables support to stop periodic ticking when in idle task.

Adjust dummies of intel_fb, wifi, usb drivers accordingly.

Issue #4540
2022-08-10 13:33:01 +02:00
Christian Helmuth
fb0fe8617c dde_linux: re-enable -Wformat
Fixes #4542
2022-08-10 13:33:01 +02:00
Christian Helmuth
924e1d741d lx_emul: cleanup naming of lx_emul_random_gen*
Issue #4544
2022-08-10 13:33:00 +02:00
Martin Stein
1fbe72b7dd lx_emul: fixed types in lx_emul_gen_random_u*
* Rename lx_emul_gen_random_uint lx_emul_gen_random_u32.
* Use genode_uint*_t as return types for the lx_emul_gen_random_u* functions.

Ref #4544
2022-08-10 13:33:00 +02:00
Sebastian Sumpf
87aa456bfd lx_emul: remove 'shadow/softirq.c' from common imports
softirq.c implements tasklets that need on the PinePhone cannot be
called directly.

issue #4557
2022-08-10 13:32:59 +02:00
Christian Helmuth
47c924d1f5 pc: use lx_emul_gen_random_bytes() for randomness
Fixes #4544
2022-08-10 13:32:59 +02:00
Josef Söntgen
7c340b1cc9 pc/wifi: implement iput dummy
The 'iput()' function is called from '__sock_release()' when the sock
object has no valid file object. The release function on the other hand
is called when the supplicant closes a socket.

Fixes #xxx.
2022-08-10 13:32:59 +02:00
Josef Söntgen
1ca2265fd4 pc/wifi: do not execute driver on user stack
The 'with_libc' call at this point is not necessary and could be
harmful as it forces the usage of the user stack for the driver.
All code depending on this distinction should only be executed
from within the pthread.

Issue #4537.
2022-08-10 13:32:58 +02:00
Josef Söntgen
a90abbc22e pc/wifi: get RFKILL state on frontend construction
Issue #4537.
2022-08-10 13:32:58 +02:00
Josef Söntgen
10451652f4 pc/wifi: avoid late frontend construction
Dissolve unintentional dependency between wifi management layer and the
control interface of the supplicant.

Issue #4537.
2022-08-10 13:32:58 +02:00
Josef Söntgen
9393c0136c pc/wifi: prevent calling driver from pthread
Querying the RFKILL state led to execution of the Lx_kit::scheduler by
the pthread running the wpa_supplicant. As this may not happen the
RFKILL state is now solely managed by the driver and only the cached
state is read by the supplicant.

Fixes #4537.
2022-08-10 13:32:58 +02:00
Alexander Boettcher
f1af654502 intel_fb: add apply_on_hotplug attribute
Make it configurable, whether on a hotplug event the current valid Genode
config for the driver will be re-evaluated. By default it will be re-evaluated.

Issue #4531
2022-08-10 13:32:57 +02:00
Alexander Boettcher
80981dbefb intel_fb: re-evalute max resolution on unplug
On connector unplug the overall resolution of all available active connectors
can shrink and must be considered to potentially re-create the Capture
connection with smaller resolution size. Additionally, update the documentation.

Issue #4531
2022-08-10 13:32:57 +02:00
Alexander Boettcher
88118b133a intel_fb: request copy of Intel opregion
acpica and the Intel display driver tries to use the Intel Opregion
simultaneously on Genode, which is not supported nor wanted for IO_MEM region as
which it is handled.

Attempts to remove the access to the region was not successful, since some
SSDT table contains ACPI AML code which is executed regularly and read/write
the Opregion.

The patch adds support to read in a copy of the Intel Opregion done by the
acpi_drv component. The copy was sufficient to make the Intel display driver
working to find and lookup the Intel VBT (video bios table) information to
setup all connectors on a Fujitsu U7411 docking station.

Fixes #4531
2022-08-10 13:32:57 +02:00