| Age | Commit message (Collapse) | Author | Files | Lines |
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Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the
value to be returned to user space.
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Signed-off-by: Helge Deller <deller@gmx.de>
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When the remove() function is called, we know that the probe() function has
successfully been executed. So 'info' is known to be not NULL.
Simplify the code accordingly.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Helge Deller <deller@gmx.de>
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If an error occurs after a successful uvesafb_init_mtrr() call, it must be
undone by a corresponding arch_phys_wc_del() call, as already done in the
remove function.
This has been added in the remove function in commit 63e28a7a5ffc
("uvesafb: Clean up MTRR code")
Fixes: 8bdb3a2d7df4 ("uvesafb: the driver core")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Helge Deller <deller@gmx.de>
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The uvesafb fbdev driver uses memory management information that is not
available on ARCH=um, so don't allow this driver to be built on UML.
Prevents these build errors:
../drivers/video/fbdev/uvesafb.c: In function ‘uvesafb_vbe_init’:
../drivers/video/fbdev/uvesafb.c:807:21: error: ‘__supported_pte_mask’ undeclared (first use in this function)
807 | if (__supported_pte_mask & _PAGE_NX) {
../drivers/video/fbdev/uvesafb.c:807:44: error: ‘_PAGE_NX’ undeclared (first use in this function)
807 | if (__supported_pte_mask & _PAGE_NX) {
Fixes: 68f5d3f3b654 ("um: add PCI over virtio emulation driver")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Richard Weinberger <richard@nod.at>
Cc: linux-um@lists.infradead.org
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: Michal Januszewski <spock@gentoo.org>
Signed-off-by: Helge Deller <deller@gmx.de>
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The geode fbdev driver uses struct cpuinfo fields that are not present
on ARCH=um, so don't allow this driver to be built on UML.
Prevents these build errors:
In file included from ../arch/x86/include/asm/olpc.h:7:0,
from ../drivers/mfd/cs5535-mfd.c:17:
../arch/x86/include/asm/geode.h: In function ‘is_geode_gx’:
../arch/x86/include/asm/geode.h:16:24: error: ‘struct cpuinfo_um’ has no member named ‘x86_vendor’
return ((boot_cpu_data.x86_vendor == X86_VENDOR_NSC) &&
../arch/x86/include/asm/geode.h:16:39: error: ‘X86_VENDOR_NSC’ undeclared (first use in this function); did you mean ‘X86_VENDOR_ANY’?
return ((boot_cpu_data.x86_vendor == X86_VENDOR_NSC) &&
../arch/x86/include/asm/geode.h:17:17: error: ‘struct cpuinfo_um’ has no member named ‘x86’
(boot_cpu_data.x86 == 5) &&
../arch/x86/include/asm/geode.h:18:17: error: ‘struct cpuinfo_um’ has no member named ‘x86_model’
(boot_cpu_data.x86_model == 5));
../arch/x86/include/asm/geode.h: In function ‘is_geode_lx’:
../arch/x86/include/asm/geode.h:23:24: error: ‘struct cpuinfo_um’ has no member named ‘x86_vendor’
return ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) &&
../arch/x86/include/asm/geode.h:23:39: error: ‘X86_VENDOR_AMD’ undeclared (first use in this function); did you mean ‘X86_VENDOR_ANY’?
return ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) &&
../arch/x86/include/asm/geode.h:24:17: error: ‘struct cpuinfo_um’ has no member named ‘x86’
(boot_cpu_data.x86 == 5) &&
../arch/x86/include/asm/geode.h:25:17: error: ‘struct cpuinfo_um’ has no member named ‘x86_model’
(boot_cpu_data.x86_model == 10));
Fixes: 68f5d3f3b654 ("um: add PCI over virtio emulation driver")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Richard Weinberger <richard@nod.at>
Cc: linux-um@lists.infradead.org
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: Andres Salomon <dilinger@queued.net>
Cc: linux-geode@lists.infradead.org
Signed-off-by: Helge Deller <deller@gmx.de>
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The clk_disable_unprepare() should be called in the error handling
of register_framebuffer(), fix it.
Fixes: 0937a7b3625d ("video: ep93xx: Prepare clock before using it")
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
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The error handling code in fb_probe misses regulator_disable if
regulator_enable is called successfully. The previous commit only
adds regulator_disable in the .remove(), forgetting the error
handling code in the .probe.
Fix this by adding a new error label to call regulator_disable.
Fixes: 611097d5daea("fbdev: da8xx: add support for a regulator")
Signed-off-by: Dongliang Mu <dzm91@hust.edu.cn>
Signed-off-by: Helge Deller <deller@gmx.de>
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There is a spelling mistake in comment. Fix it.
Signed-off-by: Yu Zhe <yuzhe@nfschina.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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pci_get_device() will increase the reference count for the returned
pci_dev. For the error path, we need to use pci_dev_put() to decrease
the reference count.
Fixes: dbe7e429fedb ("vmlfb: framebuffer driver for Intel Vermilion Range")
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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The current error handling code in ufx_usb_probe have many unmatching
issues, e.g., missing ufx_free_usb_list, destroy_modedb label should
only include framebuffer_release, fb_dealloc_cmap only matches
fb_alloc_cmap.
My local syzkaller reports a memory leak bug:
memory leak in ufx_usb_probe
BUG: memory leak
unreferenced object 0xffff88802f879580 (size 128):
comm "kworker/0:7", pid 17416, jiffies 4295067474 (age 46.710s)
hex dump (first 32 bytes):
80 21 7c 2e 80 88 ff ff 18 d0 d0 0c 80 88 ff ff .!|.............
00 d0 d0 0c 80 88 ff ff e0 ff ff ff 0f 00 00 00 ................
backtrace:
[<ffffffff814c99a0>] kmalloc_trace+0x20/0x90 mm/slab_common.c:1045
[<ffffffff824d219c>] kmalloc include/linux/slab.h:553 [inline]
[<ffffffff824d219c>] kzalloc include/linux/slab.h:689 [inline]
[<ffffffff824d219c>] ufx_alloc_urb_list drivers/video/fbdev/smscufx.c:1873 [inline]
[<ffffffff824d219c>] ufx_usb_probe+0x11c/0x15a0 drivers/video/fbdev/smscufx.c:1655
[<ffffffff82d17927>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
[<ffffffff82712f0d>] call_driver_probe drivers/base/dd.c:560 [inline]
[<ffffffff82712f0d>] really_probe+0x12d/0x390 drivers/base/dd.c:639
[<ffffffff8271322f>] __driver_probe_device+0xbf/0x140 drivers/base/dd.c:778
[<ffffffff827132da>] driver_probe_device+0x2a/0x120 drivers/base/dd.c:808
[<ffffffff82713c27>] __device_attach_driver+0xf7/0x150 drivers/base/dd.c:936
[<ffffffff82710137>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:427
[<ffffffff827136b5>] __device_attach+0x105/0x2d0 drivers/base/dd.c:1008
[<ffffffff82711d36>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:487
[<ffffffff8270e242>] device_add+0x642/0xdc0 drivers/base/core.c:3517
[<ffffffff82d14d5f>] usb_set_configuration+0x8ef/0xb80 drivers/usb/core/message.c:2170
[<ffffffff82d2576c>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238
[<ffffffff82d16ffc>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293
[<ffffffff82712f0d>] call_driver_probe drivers/base/dd.c:560 [inline]
[<ffffffff82712f0d>] really_probe+0x12d/0x390 drivers/base/dd.c:639
[<ffffffff8271322f>] __driver_probe_device+0xbf/0x140 drivers/base/dd.c:778
Fix this bug by rewriting the error handling code in ufx_usb_probe.
Reported-by: syzkaller <syzkaller@googlegroups.com>
Tested-by: Dongliang Mu <dzm91@hust.edu.cn>
Signed-off-by: Dongliang Mu <dzm91@hust.edu.cn>
Signed-off-by: Helge Deller <deller@gmx.de>
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via_core_init() won't exit the driver when pci_register_driver() failed.
Exit the viafb-i2c and the viafb-gpio in failed path to prevent error.
VIA Graphics Integration Chipset framebuffer 2.4 initializing
Error: Driver 'viafb-i2c' is already registered, aborting...
Error: Driver 'viafb-gpio' is already registered, aborting...
Fixes: 7582eb9be85f ("viafb: Turn GPIO and i2c into proper platform devices")
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Add missing pci_disable_device() in error path of probe() and remove() path.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Eliminate the follow coccicheck warning:
./drivers/video/fbdev/pxafb.c:2330:2-9: line 2330 is redundant because
platform_get_irq() already prints an error
Signed-off-by: KaiLong Wang <wangkailong@jari.cn>
Signed-off-by: Helge Deller <deller@gmx.de>
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The driver is using gpiod API so it should include gpio/consumer.h and
not gpio.gh or of_gpio.h.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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The driver does not use gpios, so there is no need to include gpio.h.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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With f048e8c1d169 ("omapfb: panel-lgphilips-lb035q02: Remove legacy boot
support") it is no longer possible to specify GPIO to control the
backlight. Remove code trying to request and toggle it.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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The driver has been switched to gpiod API, so it should include
gpio/consumer.h instead of gpio.h and of_gpio.h.
With of_gpio.h no longer included we need mod_devicetable.h for
of_device_id definition.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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There are no users of connector_atv_platform_data in the mainline
kernel so support for it can be removed from the panel driver.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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There are no users of panel_dpi_platform_data in the mainline
kernel so support for it can be removed from the panel driver.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Switch the driver from legacy gpio API that is deprecated to the newer
gpiod API that respects line polarities described in ACPI/DT.
Note that because existing DTSes specify incorrect polarity of reset
lines (active high) and GPU drivers have adopted to this, we follow
the suit and use inverted values when controlling reset lines.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Switch the driver from legacy gpio API that is deprecated to the newer
gpiod API that respects line polarities described in ACPI/DT.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Switch the driver from legacy gpio API that is deprecated to the newer
gpiod API that respects line polarities described in ACPI/DT.
Note that because existing DTSes specify incorrect polarity of reset
lines (active high) and GPU drivers have adopted to this, we follow
the suit and use inverted values when controlling reset lines.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Switch the driver from legacy gpio API that is deprecated to the newer
gpiod API that respects line polarities described in ACPI/DT.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Switch the driver from legacy gpio API that is deprecated to the newer
gpiod API that respects line polarities described in ACPI/DT.
Note that because existing DTSes specify incorrect polarity of reset
lines (active high) and GPU drivers have adopted to this, we follow
the suit and use inverted values when controlling reset lines.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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There are no users of panel_acx565akm_platform_data in the mainline
kernel so support for it can be removed from the panel driver.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Switch the driver from legacy gpio API that is deprecated to the newer
gpiod API that respects line polarities described in ACPI/DT.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Variable checksum is being used to accumulate values however
it is never read or used afterwards. It is redundant and can
be removed.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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pwm_disable() and pwm_put() are NULL-aware, no need to
duplicate the check in the caller.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Only a single out of three devices need a PWM, so from driver it's
optional. Moreover it's a single driver in the entire kernel that
currently selects PWM. Unfortunately this selection is a root cause
of the circular dependencies when we want to enable optional PWM
for some other drivers that select GPIOLIB.
Fixes: a2ed00da5047 ("drivers/video: add support for the Solomon SSD1307 OLED Controller")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Pull drm updates from Dave Airlie:
"The biggest highlight is that the accel subsystem framework is merged.
Hopefully for 6.3 we will be able to line up a driver to use it.
In drivers land, i915 enables DG2 support by default now, and nouveau
has a big stability refactoring and initial ampere support, AMD
includes new hw IP support and should build on ARM again. There is
also an ofdrm driver to take over offb on platforms it's used.
Stuff outside my tree, the dma-buf patches hit a few places, the vc4
firmware changes also do, and i915 has some interactions with MEI for
discrete GPUs. I think all of those should have been acked/reviewed by
relevant parties.
New driver:
- ofdrm - replacement for offb
fbdev:
- add support for nomodeset
fourcc:
- add Vivante tiled modifier
core:
- atomic-helpers: CRTC primary plane test fixes, fb access hooks
- connector: TV API consistency, cmdline parser improvements
- send connector hotplug on cleanup
- sort makefile objects
tests:
- sort kunit tests
- improve DP-MST tests
- add kunit helpers to create a device
sched:
- module param for scheduling policy
- refcounting fix
buddy:
- add back random seed log
ttm:
- convert ttm_resource to size_t
- optimize pool allocations
edid:
- HFVSDB parsing support fixes
- logging/debug improvements
- DSC quirks
dma-buf:
- Add unlocked vmap and attachment mapping
- move drivers to common locking convention
- locking improvements
firmware:
- new API for rPI firmware and vc4
xilinx:
- zynqmp: displayport bridge support
- dpsub fix
bridge:
- adv7533: Remove dynamic lane switching
- it6505: Runtime PM support, sync improvements
- ps8640: Handle AUX defer messages
- tc358775: Drop soft-reset over I2C
panel:
- panel-edp: Add INX N116BGE-EA2 C2 and C4 support.
- Jadard JD9365DA-H3
- NewVision NV3051D
amdgpu:
- DCN support on ARM
- DCN 2.1 secure display
- Sienna Cichlid mode2 reset fixes
- new GC 11.x firmware versions
- drop AMD specific DSC workarounds in favour of drm code
- clang warning fixes
- scheduler rework
- SR-IOV fixes
- GPUVM locking fixes
- fix memory leak in CS IOCTL error path
- flexible array updates
- enable new GC/PSP/SMU/NBIO IP
- GFX preemption support for gfx9
amdkfd:
- cache size fixes
- userptr fixes
- enable cooperative launch on gfx 10.3
- enable GC 11.0.4 KFD support
radeon:
- replace kmap with kmap_local_page
- ACPI ref count fix
- HDA audio notifier support
i915:
- DG2 enabled by default
- MTL enablement work
- hotplug refactoring
- VBT improvements
- Display and watermark refactoring
- ADL-P workaround
- temp disable runtime_pm for discrete-
- fix for A380 as a secondary GPU
- Wa_18017747507 for DG2
- CS timestamp support fixes for gen5 and earlier
- never purge busy TTM objects
- use i915_sg_dma_sizes for all backends
- demote GuC kernel contexts to normal priority
- gvt: refactor for new MDEV interface
- enable DC power states on eDP ports
- fix gen 2/3 workarounds
nouveau:
- fix page fault handling
- Ampere acceleration support
- driver stability improvements
- nva3 backlight support
msm:
- MSM_INFO_GET_FLAGS support
- DPU: XR30 and P010 image formats
- Qualcomm SM6115 support
- DSI PHY support for QCM2290
- HDMI: refactored dev init path
- remove exclusive-fence hack
- fix speed-bin detection
- enable clamp to idle on 7c3
- improved hangcheck detection
vmwgfx:
- fb and cursor refactoring
- convert to generic hashtable
- cursor improvements
etnaviv:
- hw workarounds
- softpin MMU fixes
ast:
- atomic gamma LUT support
- convert to SHMEM
lcdif:
- support YUV planes
- Increase DMA burst size
- FIFO threshold tuning
meson:
- fix return type of cvbs mode_valid
mgag200:
- fix PLL setup on some revisions
sun4i:
- A100 and D1 support
udl:
- modesetting improvements
- hot unplug support
vc4:
- support PAL-M
- fix regression preventing 4K @ 60Hz
- fix NULL ptr deref
v3d:
- switch to drm managed resources
renesas:
- RZ/G2L DSI support
- DU Kconfig cleanup
mediatek:
- fixup dpi and hdmi
- MT8188 dpi support
- MT8195 AFBC support
tegra:
- NVDEC hardware on Tegra234 SoC
hdlcd:
- switch to drm managed resources
ingenic:
- fix registration error path
hisilicon:
- convert to drm_mode_init
maildp:
- use managed resources
mtk:
- use drm_mode_init
rockchip:
- use drm_mode_copy"
* tag 'drm-next-2022-12-13' of git://anongit.freedesktop.org/drm/drm: (1397 commits)
drm/amdgpu: fix mmhub register base coding error
drm/amdgpu: add tmz support for GC IP v11.0.4
drm/amdgpu: enable GFX Clock Gating control for GC IP v11.0.4
drm/amdgpu: enable GFX Power Gating for GC IP v11.0.4
drm/amdgpu: enable GFX IP v11.0.4 CG support
drm/amdgpu: Make amdgpu_ring_mux functions as static
drm/amdgpu: generally allow over-commit during BO allocation
drm/amd/display: fix array index out of bound error in DCN32 DML
drm/amd/display: 3.2.215
drm/amd/display: set optimized required for comp buf changes
drm/amd/display: Add debug option to skip PSR CRTC disable
drm/amd/display: correct DML calc error of UrgentLatency
drm/amd/display: correct static_screen_event_mask
drm/amd/display: Ensure commit_streams returns the DC return code
drm/amd/display: read invalid ddc pin status cause engine busy
drm/amd/display: Bypass DET swath fill check for max clocks
drm/amd/display: Disable uclk pstate for subvp pipes
drm/amd/display: Fix DCN2.1 default DSC clocks
drm/amd/display: Enable dp_hdmi21_pcon support
drm/amd/display: prevent seamless boot on displays that don't have the preferred dig
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and PNP updates from Rafael Wysocki:
"These include new code (for instance, support for the FFH address
space type and support for new firmware data structures in ACPICA),
some new quirks (mostly related to backlight handling and I2C
enumeration), a number of fixes and a fair amount of cleanups all
over.
Specifics:
- Update the ACPICA code in the kernel to the 20221020 upstream
version and fix a couple of issues in it:
- Make acpi_ex_load_op() match upstream implementation (Rafael
Wysocki)
- Add support for loong_arch-specific APICs in MADT (Huacai Chen)
- Add support for fixed PCIe wake event (Huacai Chen)
- Add EBDA pointer sanity checks (Vit Kabele)
- Avoid accessing VGA memory when EBDA < 1KiB (Vit Kabele)
- Add CCEL table support to both compiler/disassembler (Kuppuswamy
Sathyanarayanan)
- Add a couple of new UUIDs to the known UUID list (Bob Moore)
- Add support for FFH Opregion special context data (Sudeep
Holla)
- Improve warning message for "invalid ACPI name" (Bob Moore)
- Add support for CXL 3.0 structures (CXIMS & RDPAS) in the CEDT
table (Alison Schofield)
- Prepare IORT support for revision E.e (Robin Murphy)
- Finish support for the CDAT table (Bob Moore)
- Fix error code path in acpi_ds_call_control_method() (Rafael
Wysocki)
- Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() (Li
Zetao)
- Update the version of the ACPICA code in the kernel (Bob Moore)
- Use ZERO_PAGE(0) instead of empty_zero_page in the ACPI device
enumeration code (Giulio Benetti)
- Change the return type of the ACPI driver remove callback to void
and update its users accordingly (Dawei Li)
- Add general support for FFH address space type and implement the
low- level part of it for ARM64 (Sudeep Holla)
- Fix stale comments in the ACPI tables parsing code and make it
print more messages related to MADT (Hanjun Guo, Huacai Chen)
- Replace invocations of generic library functions with more kernel-
specific counterparts in the ACPI sysfs interface (Christophe
JAILLET, Xu Panda)
- Print full name paths of ACPI power resource objects during
enumeration (Kane Chen)
- Eliminate a compiler warning regarding a missing function prototype
in the ACPI power management code (Sudeep Holla)
- Fix and clean up the ACPI processor driver (Rafael Wysocki, Li
Zhong, Colin Ian King, Sudeep Holla)
- Add quirk for the HP Pavilion Gaming 15-cx0041ur to the ACPI EC
driver (Mia Kanashi)
- Add some mew ACPI backlight handling quirks and update some
existing ones (Hans de Goede)
- Make the ACPI backlight driver prefer the native backlight control
over vendor backlight control when possible (Hans de Goede)
- Drop unsetting ACPI APEI driver data on remove (Uwe Kleine-König)
- Use xchg_release() instead of cmpxchg() for updating new GHES cache
slots (Ard Biesheuvel)
- Clean up the ACPI APEI code (Sudeep Holla, Christophe JAILLET, Jay
Lu)
- Add new I2C device enumeration quirks for Medion Lifetab S10346 and
Lenovo Yoga Tab 3 Pro (YT3-X90F) (Hans de Goede)
- Make the ACPI battery driver notify user space about adding new
battery hooks and removing the existing ones (Armin Wolf)
- Modify the pfr_update and pfr_telemetry drivers to use ACPI_FREE()
for freeing acpi_object structures to help diagnostics (Wang
ShaoBo)
- Make the ACPI fan driver use sysfs_emit_at() in its sysfs interface
code (ye xingchen)
- Fix the _FIF package extraction failure handling in the ACPI fan
driver (Hanjun Guo)
- Fix the PCC mailbox handling error code path (Huisong Li)
- Avoid using PCC Opregions if there is no platform interrupt
allocated for this purpose (Huisong Li)
- Use sysfs_emit() instead of scnprintf() in the ACPI PAD driver and
CPPC library (ye xingchen)
- Fix some kernel-doc issues in the ACPI GSI processing code
(Xiongfeng Wang)
- Fix name memory leak in pnp_alloc_dev() (Yang Yingliang)
- Do not disable PNP devices on suspend when they cannot be
re-enabled on resume (Hans de Goede)
- Clean up the ACPI thermal driver a bit (Rafael Wysocki)"
* tag 'acpi-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (67 commits)
ACPI: x86: Add skip i2c clients quirk for Medion Lifetab S10346
ACPI: APEI: EINJ: Refactor available_error_type_show()
ACPI: APEI: EINJ: Fix formatting errors
ACPI: processor: perflib: Adjust acpi_processor_notify_smm() return value
ACPI: processor: perflib: Rearrange acpi_processor_notify_smm()
ACPI: processor: perflib: Rearrange unregistration routine
ACPI: processor: perflib: Drop redundant parentheses
ACPI: processor: perflib: Adjust white space
ACPI: processor: idle: Drop unnecessary statements and parens
ACPI: thermal: Adjust critical.flags.valid check
ACPI: fan: Convert to use sysfs_emit_at() API
ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage()
ACPI: battery: Call power_supply_changed() when adding hooks
ACPI: use sysfs_emit() instead of scnprintf()
ACPI: x86: Add skip i2c clients quirk for Lenovo Yoga Tab 3 Pro (YT3-X90F)
ACPI: APEI: Remove a useless include
PNP: Do not disable devices on suspend when they cannot be re-enabled on resume
ACPI: processor: Silence missing prototype warnings
ACPI: processor_idle: Silence missing prototype warnings
ACPI: PM: Silence missing prototype warning
...
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git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyperv updates from Wei Liu:
- Drop unregister syscore from hyperv_cleanup to avoid hang (Gaurav
Kohli)
- Clean up panic path for Hyper-V framebuffer (Guilherme G. Piccoli)
- Allow IRQ remapping to work without x2apic (Nuno Das Neves)
- Fix comments (Olaf Hering)
- Expand hv_vp_assist_page definition (Saurabh Sengar)
- Improvement to page reporting (Shradha Gupta)
- Make sure TSC clocksource works when Linux runs as the root partition
(Stanislav Kinsburskiy)
* tag 'hyperv-next-signed-20221208' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
x86/hyperv: Remove unregister syscore call from Hyper-V cleanup
iommu/hyper-v: Allow hyperv irq remapping without x2apic
clocksource: hyper-v: Add TSC page support for root partition
clocksource: hyper-v: Use TSC PFN getter to map vvar page
clocksource: hyper-v: Introduce TSC PFN getter
clocksource: hyper-v: Introduce a pointer to TSC page
x86/hyperv: Expand definition of struct hv_vp_assist_page
PCI: hv: update comment in x86 specific hv_arch_irq_unmask
hv: fix comment typo in vmbus_channel/low_latency
drivers: hv, hyperv_fb: Untangle and refactor Hyper-V panic notifiers
video: hyperv_fb: Avoid taking busy spinlock on panic path
hv_balloon: Add support for configurable order free page reporting
mm/page_reporting: Add checks for page_reporting_order param
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git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
Pull printk updates from Petr Mladek:
- Add NMI-safe SRCU reader API. It uses atomic_inc() instead of
this_cpu_inc() on strong load-store architectures.
- Introduce new console_list_lock to synchronize a manipulation of the
list of registered consoles and their flags.
This is a first step in removing the big-kernel-lock-like behavior of
console_lock(). This semaphore still serializes console->write()
calbacks against:
- each other. It primary prevents potential races between early
and proper console drivers using the same device.
- suspend()/resume() callbacks and init() operations in some
drivers.
- various other operations in the tty/vt and framebufer
susbsystems. It is likely that console_lock() serializes even
operations that are not directly conflicting with the
console->write() callbacks here. This is the most complicated
big-kernel-lock aspect of the console_lock() that will be hard
to untangle.
- Introduce new console_srcu lock that is used to safely iterate and
access the registered console drivers under SRCU read lock.
This is a prerequisite for introducing atomic console drivers and
console kthreads. It will reduce the complexity of serialization
against normal consoles and console_lock(). Also it should remove the
risk of deadlock during critical situations, like Oops or panic, when
only atomic consoles are registered.
- Check whether the console is registered instead of enabled on many
locations. It was a historical leftover.
- Cleanly force a preferred console in xenfb code instead of a dirty
hack.
- A lot of code and comment clean ups and improvements.
* tag 'printk-for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: (47 commits)
printk: htmldocs: add missing description
tty: serial: sh-sci: use setup() callback for early console
printk: relieve console_lock of list synchronization duties
tty: serial: kgdboc: use console_list_lock to trap exit
tty: serial: kgdboc: synchronize tty_find_polling_driver() and register_console()
tty: serial: kgdboc: use console_list_lock for list traversal
tty: serial: kgdboc: use srcu console list iterator
proc: consoles: use console_list_lock for list iteration
tty: tty_io: use console_list_lock for list synchronization
printk, xen: fbfront: create/use safe function for forcing preferred
netconsole: avoid CON_ENABLED misuse to track registration
usb: early: xhci-dbc: use console_is_registered()
tty: serial: xilinx_uartps: use console_is_registered()
tty: serial: samsung_tty: use console_is_registered()
tty: serial: pic32_uart: use console_is_registered()
tty: serial: earlycon: use console_is_registered()
tty: hvc: use console_is_registered()
efi: earlycon: use console_is_registered()
tty: nfcon: use console_is_registered()
serial_core: replace uart_console_enabled() with uart_console_registered()
...
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Merge ACPI changes related to device enumeration, device object
managenet, operation region handling, table parsing and sysfs
interface:
- Use ZERO_PAGE(0) instead of empty_zero_page in the ACPI device
enumeration code (Giulio Benetti).
- Change the return type of the ACPI driver remove callback to void and
update its users accordingly (Dawei Li).
- Add general support for FFH address space type and implement the low-
level part of it for ARM64 (Sudeep Holla).
- Fix stale comments in the ACPI tables parsing code and make it print
more messages related to MADT (Hanjun Guo, Huacai Chen).
- Replace invocations of generic library functions with more kernel-
specific counterparts in the ACPI sysfs interface (Christophe JAILLET,
Xu Panda).
* acpi-scan:
ACPI: scan: substitute empty_zero_page with helper ZERO_PAGE(0)
* acpi-bus:
ACPI: FFH: Silence missing prototype warnings
ACPI: make remove callback of ACPI driver void
ACPI: bus: Fix the _OSC capability check for FFH OpRegion
arm64: Add architecture specific ACPI FFH Opregion callbacks
ACPI: Implement a generic FFH Opregion handler
* acpi-tables:
ACPI: tables: Fix the stale comments for acpi_locate_initial_tables()
ACPI: tables: Print CORE_PIC information when MADT is parsed
* acpi-sysfs:
ACPI: sysfs: use sysfs_emit() to instead of scnprintf()
ACPI: sysfs: Use kstrtobool() instead of strtobool()
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git://anongit.freedesktop.org/drm/drm-misc into drm-next
Some deferred-io and damage worker reworks revert and make a fb function
static
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20221208084040.yw4zavsjd25qsltf@houat
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With commit 9e124fe16ff2("xen: Enable console tty by default in domU
if it's not a dummy") a hack was implemented to make sure that the
tty console remains the console behind the /dev/console device. The
main problem with the hack is that, after getting the console pointer
to the tty console, it is assumed the pointer is still valid after
releasing the console_sem. This assumption is incorrect and unsafe.
Make the hack safe by introducing a new function
console_force_preferred_locked() and perform the full operation
under the console_list_lock.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20221116162152.193147-33-john.ogness@linutronix.de
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Currently Hyper-V guests are among the most relevant users of the panic
infrastructure, like panic notifiers, kmsg dumpers, etc. The reasons rely
both in cleaning-up procedures (closing hypervisor <-> guest connection,
disabling some paravirtualized timer) as well as to data collection
(sending panic information to the hypervisor) and framebuffer management.
The thing is: some notifiers are related to others, ordering matters, some
functionalities are duplicated and there are lots of conditionals behind
sending panic information to the hypervisor. As part of an effort to
clean-up the panic notifiers mechanism and better document things, we
hereby address some of the issues/complexities of Hyper-V panic handling
through the following changes:
(a) We have die and panic notifiers on vmbus_drv.c and both have goals of
sending panic information to the hypervisor, though the panic notifier is
also responsible for a cleaning-up procedure.
This commit clears the code by splitting the panic notifier in two, one
for closing the vmbus connection whereas the other is only for sending
panic info to hypervisor. With that, it was possible to merge the die and
panic notifiers in a single/well-documented function, and clear some
conditional complexities on sending such information to the hypervisor.
(b) There is a Hyper-V framebuffer panic notifier, which relies in doing
a vmbus operation that demands a valid connection. So, we must order this
notifier with the panic notifier from vmbus_drv.c, to guarantee that the
framebuffer code executes before the vmbus connection is unloaded.
Also, this commit removes a useless header.
Although there is code rework and re-ordering, we expect that this change
has no functional regressions but instead optimize the path and increase
panic reliability on Hyper-V. This was tested on Hyper-V with success.
Cc: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
Cc: Dexuan Cui <decui@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Tianyu Lan <Tianyu.Lan@microsoft.com>
Cc: Wei Liu <wei.liu@kernel.org>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Fabio A M Martins <fabiomirmar@gmail.com>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20220819221731.480795-11-gpiccoli@igalia.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
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The Hyper-V framebuffer code registers a panic notifier in order
to try updating its fbdev if the kernel crashed. The notifier
callback is straightforward, but it calls the vmbus_sendpacket()
routine eventually, and such function takes a spinlock for the
ring buffer operations.
Panic path runs in atomic context, with local interrupts and
preemption disabled, and all secondary CPUs shutdown. That said,
taking a spinlock might cause a lockup if a secondary CPU was
disabled with such lock taken. Fix it here by checking if the
ring buffer spinlock is busy on Hyper-V framebuffer panic notifier;
if so, bail-out avoiding the potential lockup scenario.
Cc: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
Cc: Dexuan Cui <decui@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Michael Kelley <mikelley@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Tianyu Lan <Tianyu.Lan@microsoft.com>
Cc: Wei Liu <wei.liu@kernel.org>
Tested-by: Fabio A M Martins <fabiomirmar@gmail.com>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20220819221731.480795-10-gpiccoli@igalia.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
drm-misc-fixes for v6.1-rc7:
- Another amdgpu gang submit fix.
- Use dma_fence_unwrap_for_each when importing sync files.
- Fix race in dma_heap_add().
- Fix use of uninitialized memory in logo.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a5721505-4823-98ef-7d6f-0ea478221391@linux.intel.com
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Linux 6.1-rc6
This is needed for drm-misc-next and tegra.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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For bus-based driver, device removal is implemented as:
1 device_remove()->
2 bus->remove()->
3 driver->remove()
Driver core needs no inform from callee(bus driver) about the
result of remove callback. In that case, commit fc7a6209d571
("bus: Make remove callback return void") forces bus_type::remove
be void-returned.
Now we have the situation that both 1 & 2 of calling chain are
void-returned, so it does not make much sense for 3(driver->remove)
to return non-void to its caller.
So the basic idea behind this change is making remove() callback of
any bus-based driver to be void-returned.
This change, for itself, is for device drivers based on acpi-bus.
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Lee Jones <lee@kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dawei Li <set_pte_at@outlook.com>
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for drivers/platform/surface/*
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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framebuffer"
This reverts commit 7f5cc4a3e5e4c5a38e5748defc952e45278f7a70.
Needed to restore the fbdev damage worker. There have been bug reports
about locking order [1] and incorrectly takens branches. [2] Restore
the damage worker until these problems have been resovled.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://intel-gfx-ci.01.org/tree/drm-tip/fi-kbl-8809g.html # 1
Link: https://lore.kernel.org/dri-devel/20221115115819.23088-6-tzimmermann@suse.de/T/#m06eedc0a468940e4cbbd14ca026733b639bc445a # 2
Link: https://patchwork.freedesktop.org/patch/msgid/20221118133535.9739-3-tzimmermann@suse.de
(cherry picked from commit 8b83e1a455382dc667898a525a93f4eb6716cc41)
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A kernel built with syzbot's config file reported that
scr_memcpyw(q, save, array3_size(logo_lines, new_cols, 2))
causes uninitialized "save" to be copied.
----------
[drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0
[drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1
Console: switching to colour frame buffer device 128x48
=====================================================
BUG: KMSAN: uninit-value in do_update_region+0x4b8/0xba0
do_update_region+0x4b8/0xba0
update_region+0x40d/0x840
fbcon_switch+0x3364/0x35e0
redraw_screen+0xae3/0x18a0
do_bind_con_driver+0x1cb3/0x1df0
do_take_over_console+0x11cb/0x13f0
fbcon_fb_registered+0xacc/0xfd0
register_framebuffer+0x1179/0x1320
__drm_fb_helper_initial_config_and_unlock+0x23ad/0x2b40
drm_fbdev_client_hotplug+0xbea/0xda0
drm_fbdev_generic_setup+0x65e/0x9d0
vkms_init+0x9f3/0xc76
(...snipped...)
Uninit was stored to memory at:
fbcon_prepare_logo+0x143b/0x1940
fbcon_init+0x2c1b/0x31c0
visual_init+0x3e7/0x820
do_bind_con_driver+0x14a4/0x1df0
do_take_over_console+0x11cb/0x13f0
fbcon_fb_registered+0xacc/0xfd0
register_framebuffer+0x1179/0x1320
__drm_fb_helper_initial_config_and_unlock+0x23ad/0x2b40
drm_fbdev_client_hotplug+0xbea/0xda0
drm_fbdev_generic_setup+0x65e/0x9d0
vkms_init+0x9f3/0xc76
(...snipped...)
Uninit was created at:
__kmem_cache_alloc_node+0xb69/0x1020
__kmalloc+0x379/0x680
fbcon_prepare_logo+0x704/0x1940
fbcon_init+0x2c1b/0x31c0
visual_init+0x3e7/0x820
do_bind_con_driver+0x14a4/0x1df0
do_take_over_console+0x11cb/0x13f0
fbcon_fb_registered+0xacc/0xfd0
register_framebuffer+0x1179/0x1320
__drm_fb_helper_initial_config_and_unlock+0x23ad/0x2b40
drm_fbdev_client_hotplug+0xbea/0xda0
drm_fbdev_generic_setup+0x65e/0x9d0
vkms_init+0x9f3/0xc76
(...snipped...)
CPU: 2 PID: 1 Comm: swapper/0 Not tainted 6.1.0-rc4-00356-g8f2975c2bb4c #924
Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
----------
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/cad03d25-0ea0-32c4-8173-fd1895314bce@I-love.SAKURA.ne.jp
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Support the kernel's nomodeset parameter for all PCI-based fbdev
drivers that use aperture helpers to remove other, hardware-agnostic
graphics drivers.
The parameter is a simple way of using the firmware-provided scanout
buffer if the hardware's native driver is broken. The same effect
could be achieved with per-driver options, but the importance of the
graphics output for many users makes a single, unified approach
worthwhile.
With nomodeset specified, the fbdev driver module will not load. This
unifies behavior with similar DRM drivers. In DRM helpers, modules
first check the nomodeset parameter before registering the PCI
driver. As fbdev has no such module helpers, we have to modify each
driver individually.
The name 'nomodeset' is slightly misleading, but has been chosen for
historical reasons. Several drivers implemented it before it became a
general option for DRM. So keeping the existing name was preferred over
introducing a new one.
v2:
* print a warning if a driver does not init (Helge)
* wrap video_firmware_drivers_only() in helper
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221111133024.9897-3-tzimmermann@suse.de
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Move the nomodeset kernel parameter to drivers/video to make it
available to non-DRM drivers. Adapt the interface, but keep the DRM
interface drm_firmware_drivers_only() to avoid churn within DRM. The
function should later be inlined into callers.
The parameter disables any DRM graphics driver that would replace a
driver for firmware-provided scanout buffers. It is an option to easily
fallback to basic graphics output if the hardware's native driver is
broken. Moving it to a more prominent location wil make it available
to fbdev as well.
v2:
* clarify the meaning of the nomodeset parameter (Javier)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221111133024.9897-2-tzimmermann@suse.de
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Schedule the deferred-I/O worker instead of the damage worker after
writing to the fbdev framebuffer. The deferred-I/O worker then performs
the dirty-fb update. The fbdev emulation will initialize deferred I/O
for all drivers that require damage updates. It is therefore a valid
assumption that the deferred-I/O worker is present.
It would be possible to perform the damage handling directly from within
the write operation. But doing this could increase the overhead of the
write or interfere with a concurrently scheduled deferred-I/O worker.
Instead, scheduling the deferred-I/O worker with its regular delay of
50 ms removes load off the write operation and allows the deferred-I/O
worker to handle multiple write operations that arrived during the delay
time window.
v3:
* remove unused variable (lkp)
v2:
* keep drm_fb_helper_damage() (Daniel)
* use fb_deferred_io_schedule_flush() (Daniel)
* clarify comments (Daniel)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20221115115819.23088-6-tzimmermann@suse.de
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
Pull fbdev fixes from Helge Deller:
"A use-after-free bugfix in the smscufx driver and various minor error
path fixes, smaller build fixes, sysfs fixes and typos in comments in
the stifb, sisfb, da8xxfb, xilinxfb, sm501fb, gbefb and cyber2000fb
drivers"
* tag 'fbdev-for-6.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
fbdev: cyber2000fb: fix missing pci_disable_device()
fbdev: sisfb: use explicitly signed char
fbdev: smscufx: Fix several use-after-free bugs
fbdev: xilinxfb: Make xilinxfb_release() return void
fbdev: sisfb: fix repeated word in comment
fbdev: gbefb: Convert sysfs snprintf to sysfs_emit
fbdev: sm501fb: Convert sysfs snprintf to sysfs_emit
fbdev: stifb: Fall back to cfb_fillrect() on 32-bit HCRX cards
fbdev: da8xx-fb: Fix error handling in .remove()
fbdev: MIPS supports iomem addresses
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Add missing pci_disable_device() in error path of probe() and remove() path.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Return on error directly from the BAR-iterating loop instead of
break+return.
This is actually a cosmetic fix, since it would be highly unusual to
have this called for a PCI device without any memory BARs.
Fixes: 9d69ef183815 ("fbdev/core: Remove remove_conflicting_pci_framebuffers()")
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/e75323732bedc46d613d72ecb40f97e3bc75eea8.1666829073.git.mirq-linux@rere.qmqm.pl
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