| Commit message (Collapse) | Author | Age | Files | Lines |
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARMv4T/v5 multiplatform support from Arnd Bergmann:
"This series has been 12 years in the making, it mostly finishes the
work that was started with the founding of Linaro to clean up platform
support in the kernel.
The largest change here is a cleanup of the omap1 platform, which is
the final ARM machine type to get converted to the common-clk
subsystem. All the omap1 specific drivers are now made independent of
the mach/*.h headers to allow the platform to be part of a generic
ARMv4/v5 multiplatform kernel.
The last bit that enables this support is still missing here while we
wait for some last dependencies to make it into the mainline kernel
through other subsystems.
The s3c24xx, ixp4xx, iop32x, ep93xx and dove platforms were all almost
at the point of allowing multiplatform kernels, this work gets
completed here along with a few additional cleanup. At the same time,
the s3c24xx and s3c64xx are now deprecated and expected to get removed
in the future.
The PXA and OMAP1 bits are in a separate branch because of
dependencies. Once both branches are merged, only the three Intel
StrongARM platforms (RiscPC, Footbridge/NetWinder and StrongARM1100)
need separate kernels, and there are no plans to include these"
* tag 'arm-multiplatform-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (61 commits)
ARM: ixp4xx: Consolidate Kconfig fixing issue
ARM: versatile: Add missing of_node_put in dcscb_init
ARM: config: Refresh IXP4xx config after multiplatform
ARM: omap1: add back omap_set_dma_priority() stub
ARM: omap: fix missing declaration warnings
ARM: omap: fix address space warnings from sparse
ARM: spear: remove include/mach/ subdirectory
ARM: davinci: remove include/mach/ subdirectory
ARM: omap2: remove include/mach/ subdirectory
integrator: remove empty ap_init_early()
ARM: s3c: fix include path
MAINTAINERS: omap1: Add Janusz as an additional maintainer
ARM: omap1: htc_herald: fix typos in comments
ARM: OMAP1: fix typos in comments
ARM: OMAP1: clock: Remove noop code
ARM: OMAP1: clock: Remove unused code
ARM: OMAP1: clock: Fix UART rate reporting algorithm
ARM: OMAP1: clock: Fix early UART rate issues
ARM: OMAP1: Prepare for conversion of OMAP1 clocks to CCF
ARM: omap1: fix build with no SoC selected
...
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All the headers we actually need are now in include/linux/soc,
so use those versions instead and allow compile-testing on
other architectures.
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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To avoid relying on the mach/irqs.h header, stop using
OMAP_LCDC_IRQ and INT_1610_SoSSI_MATCH directly in the driver
code, but instead pass these as resources.
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The omapfb driver is split into platform specific code for omap1, and
driver code that is also specific to omap1.
Moving both parts into the driver directory simplifies the structure
and avoids the dependency on certain omap machine header files.
As mach/lcd_dma.h can not be included from include/linux/omap-dma.h
any more now, move the omap_lcd_dma_running() declaration into the
omap-dma header, which matches where it is defined.
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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To avoid using the mach/omap1510.h header file, pass the correct
address as platform data.
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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A recent cleanup patch removed the only reference to a local variable
in some configurations.
Move the variable into the one block it is still used in, inside
of an #ifdef, to avoid this warning.
Fixes: 9d773f103b89 ("video: fbdev: omapfb: lcd_ams_delta: Make use of the helper function dev_err_probe()")
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"Not much dramatic changes at this time, but we've received quite a lot
of changes for ASoC, while there are still a few fixes and quirks for
usual HD- and USB-auido. Here are some highlights.
ASoC:
- Overhaul of endianness specification for data formats, avoiding
needless restrictions due to CODECs
- Initial stages of Intel AVS driver merge
- Introduction of v4 IPC mechanism for SOF
- TDM mode support for AK4613
- Support for Analog Devices ADAU1361, Cirrus Logic CS35L45, Maxim
MAX98396, MediaTek MT8186, NXP i.MX8 micfil and SAI interfaces,
nVidia Tegra186 ASRC, and Texas Instruments TAS2764 and TAS2780
Others:
- A few regression fixes after the USB-audio endpoint management
refactoring
- More enhancements for Cirrus HD-audio codec support (still ongoing)
- Addition of generic serial MIDI driver"
* tag 'sound-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (504 commits)
ALSA: hda/realtek - Add new type for ALC245
ALSA: usb-audio: Configure sync endpoints before data
ALSA: ctxfi: fix typo in comment
ALSA: cs5535audio: fix typo in comment
ALSA: ctxfi: Add SB046x PCI ID
ALSA: usb-audio: Add missing ep_idx in fixed EP quirks
ALSA: usb-audio: Workaround for clock setup on TEAC devices
ALSA: lola: Bounds check loop iterator against streams array size
ASoC: max98090: Move check for invalid values before casting in max98090_put_enab_tlv()
ASoC: rt1308-sdw: add the default value of register 0xc320
ASoC: rt9120: Use pm_runtime and regcache to optimize 'pwdnn' logic
ASoC: rt9120: Fix 3byte read, valule offset typo
ASoC: amd: acp: Set Speaker enable/disable pin through rt1019 codec driver.
ASoC: amd: acp: Set Speaker enable/disable pin through rt1019 codec driver
ASoC: wm2000: fix missing clk_disable_unprepare() on error in wm2000_anc_transition()
ASoC: codecs: lpass: Fix passing zero to 'PTR_ERR'
ASoC: SOF: sof-client-ipc-flood-test: use pm_runtime_resume_and_get()
ASoC: SOF: mediatek: remove duplicate include in mt8195.c
ASoC: SOF: mediatek: Add mt8195 debug dump
ASoC: SOF: mediatek: Add mediatek common debug dump
...
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https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v5.19
This is quite a big update, partly due to the addition of some larger
drivers (more of which is to follow since at least the AVS driver is
still a work in progress) and partly due to Charles' work sorting out
our handling of endianness. As has been the case recently it's much
more about drivers than the core.
- Overhaul of endianness specification for data formats, avoiding
needless restrictions due to CODECs.
- Initial stages of Intel AVS driver merge.
- Introduction of v4 IPC mechanism for SOF.
- TDM mode support for AK4613.
- Support for Analog Devices ADAU1361, Cirrus Logic CS35L45, Maxim
MAX98396, MediaTek MT8186, NXP i.MX8 micfil and SAI interfaces,
nVidia Tegra186 ASRC, and Texas Instruments TAS2764 and TAS2780
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The i.MX DMA drivers are device tree only, nothing in
include/linux/platform_data/dma-imx.h has platform_data in it, so move
the file to include/linux/dma/imx-dma.h.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-By: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20220414162249.3934543-10-s.hauer@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
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Pull drm updates from Dave Airlie:
"Intel have enabled DG2 on certain SKUs for laptops, AMD has started
some new GPU support, msm has user allocated VA controls
dma-buf:
- add dma_resv_replace_fences
- add dma_resv_get_singleton
- make dma_excl_fence private
core:
- EDID parser refactorings
- switch drivers to drm_mode_copy/duplicate
- DRM managed mutex initialization
display-helper:
- put HDMI, SCDC, HDCP, DSC and DP into new module
gem:
- rework fence handling
ttm:
- rework bulk move handling
- add common debugfs for resource managers
- convert to kvcalloc
format helpers:
- support monochrome formats
- RGB888, RGB565 to XRGB8888 conversions
fbdev:
- cfb/sys_imageblit fixes
- pagelist corruption fix
- create offb platform device
- deferred io improvements
sysfb:
- Kconfig rework
- support for VESA mode selection
bridge:
- conversions to devm_drm_of_get_bridge
- conversions to panel_bridge
- analogix_dp - autosuspend support
- it66121 - audio support
- tc358767 - DSI to DPI support
- icn6211 - PLL/I2C fixes, DT property
- adv7611 - enable DRM_BRIDGE_OP_HPD
- anx7625 - fill ELD if no monitor
- dw_hdmi - add audio support
- lontium LT9211 support, i.MXMP LDB
- it6505: Kconfig fix, DPCD set power fix
- adv7511 - CEC support for ADV7535
panel:
- ltk035c5444t, B133UAN01, NV3052C panel support
- DataImage FG040346DSSWBG04 support
- st7735r - DT bindings fix
- ssd130x - fixes
i915:
- DG2 laptop PCI-IDs ("motherboard down")
- Initial RPL-P PCI IDs
- compute engine ABI
- DG2 Tile4 support
- DG2 CCS clear color compression support
- DG2 render/media compression formats support
- ATS-M platform info
- RPL-S PCI IDs added
- Bump ADL-P DMC version to v2.16
- Support static DRRS
- Support multiple eDP/LVDS native mode refresh rates
- DP HDR support for HSW+
- Lots of display refactoring + fixes
- GuC hwconfig support and query
- sysfs support for multi-tile
- fdinfo per-client gpu utilisation
- add geometry subslices query
- fix prime mmap with LMEM
- fix vm open count and remove vma refcounts
- contiguous allocation fixes
- steered register write support
- small PCI BAR enablement
- GuC error capture support
- sunset igpu legacy mmap support for newer devices
- GuC version 70.1.1 support
amdgpu:
- Initial SoC21 support
- SMU 13.x enablement
- SMU 13.0.4 support
- ttm_eu cleanups
- USB-C, GPUVM updates
- TMZ fixes for RV
- RAS support for VCN
- PM sysfs code cleanup
- DC FP rework
- extend CG/PG flags to 64-bit
- SI dpm lockdep fix
- runtime PM fixes
amdkfd:
- RAS/SVM fixes
- TLB flush fixes
- CRIU GWS support
- ignore bogus MEC signals more efficiently
msm:
- Fourcc modifier for tiled but not compressed layouts
- Support for userspace allocated IOVA (GPU virtual address)
- DPU: DSC (Display Stream Compression) support
- DP: eDP support
- DP: conversion to use drm_bridge and drm_bridge_connector
- Merge DPU1 and MDP5 MDSS driver
- DPU: writeback support
nouveau:
- make some structures static
- make some variables static
- switch to drm_gem_plane_helper_prepare_fb
radeon:
- misc fixes/cleanups
mxsfb:
- rework crtc mode setting
- LCDIF CRC support
etnaviv:
- fencing improvements
- fix address space collisions
- cleanup MMU reference handling
gma500:
- GEM/GTT improvements
- connector handling fixes
komeda:
- switch to plane reset helper
mediatek:
- MIPI DSI improvements
omapdrm:
- GEM improvements
qxl:
- aarch64 support
vc4:
- add a CL submission tracepoint
- HDMI YUV support
- HDMI/clock improvements
- drop is_hdmi caching
virtio:
- remove restriction of non-zero blob types
vmwgfx:
- support for cursormob and cursorbypass 4
- fence improvements
tidss:
- reset DISPC on startup
solomon:
- SPI support
- DT improvements
sun4i:
- allwinner D1 support
- drop is_hdmi caching
imx:
- use swap() instead of open-coding
- use devm_platform_ioremap_resource
- remove redunant initializations
ast:
- Displayport support
rockchip:
- Refactor IOMMU initialisation
- make some structures static
- replace drm_detect_hdmi_monitor with drm_display_info.is_hdmi
- support swapped YUV formats,
- clock improvements
- rk3568 support
- VOP2 support
mediatek:
- MT8186 support
tegra:
- debugabillity improvements"
* tag 'drm-next-2022-05-25' of git://anongit.freedesktop.org/drm/drm: (1740 commits)
drm/i915/dsi: fix VBT send packet port selection for ICL+
drm/i915/uc: Fix undefined behavior due to shift overflowing the constant
drm/i915/reg: fix undefined behavior due to shift overflowing the constant
drm/i915/gt: Fix use of static in macro mismatch
drm/i915/audio: fix audio code enable/disable pipe logging
drm/i915: Fix CFI violation with show_dynamic_id()
drm/i915: Fix 'mixing different enum types' warnings in intel_display_power.c
drm/i915/gt: Fix build error without CONFIG_PM
drm/msm/dpu: handle pm_runtime_get_sync() errors in bind path
drm/msm/dpu: add DRM_MODE_ROTATE_180 back to supported rotations
drm/msm: don't free the IRQ if it was not requested
drm/msm/dpu: limit writeback modes according to max_linewidth
drm/amd: Don't reset dGPUs if the system is going to s2idle
drm/amdgpu: Unmap legacy queue when MES is enabled
drm: msm: fix possible memory leak in mdp5_crtc_cursor_set()
drm/msm: Fix fb plane offset calculation
drm/msm/a6xx: Fix refcount leak in a6xx_gpu_init
drm/msm/dsi: don't powerup at modeset time for parade-ps8640
drm/rockchip: Change register space names in vop2
dt-bindings: display: rockchip: make reg-names mandatory for VOP2
...
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https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-next-5.19-2022-05-18:
amdgpu:
- Misc code cleanups
- Additional SMU 13.x enablement
- Smartshift fixes
- GFX11 fixes
- Support for SMU 13.0.4
- SMU mutex fix
- Suspend/resume fix
amdkfd:
- static checker fix
- Doorbell/MMIO resource handling fix
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220518205621.5741-1-alexander.deucher@amd.com
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fw fb"
This reverts commit 9a45ac2320d0a6ae01880a30d4b86025fce4061b.
This was added a helper for amdgpu to workaround a runtime pm regression
caused by a runtime pm fix in efifb. We now have a better workaround
in amdgpu in
commit f95af4a9236695 ("drm/amdgpu: don't runtime suspend if there are displays attached (v3)")
so this workaround is no longer necessary. Since amdgpu was the only
user of this interface, we can remove it.
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Use pageref->offset instead of page->index for deferred-I/O writeback
where appropriate. Distinguishes between file-mapping offset and video-
memory offset. While at it, also remove unnecessary references to
struct page.
Fbdev's deferred-I/O code uses the two related page->index and
pageref->offset. The former is the page offset in the mapped file,
the latter is the byte offset in the video memory (or fbdev screen
buffer). It's the same value for fbdev drivers, but for DRM the values
can be different. Because GEM buffer objects are mapped at an offset
in the DRM device file, page->index has this offset added to it as well.
We currently don't hit this case in DRM, because all affected mappings
of GEM memory are performed with an internal, intermediate shadow buffer.
The value of page->index is required by page_mkclean(), which we
call to reset the mappings during the writeback phase of the deferred
I/O. The value of pageref->offset is for conveniently getting an offset
into video memory in fb helpers.
v4:
* fix commit message (Javier)
Suggested-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220429100834.18898-6-tzimmermann@suse.de
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Rename various instances of pagelist to pagereflist. The list now
stores pageref structures, so the new name is more appropriate.
In their write-back helpers, several fbdev drivers refer to the
pageref list in struct fb_deferred_io instead of using the one
supplied as argument to the function. Convert them over to the
supplied one. It's the same instance, so no change of behavior
occurs.
v4:
* fix commit message (Javier)
Suggested-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220429100834.18898-5-tzimmermann@suse.de
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Refactor the page-write handler for deferred I/O. Drivers use the
function to let fbdev track written pages of mmap'ed framebuffer
memory.
v3:
* keep locking within track-pages function for readability (Sam)
v2:
* don't export the helper until we have an external caller
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220429100834.18898-4-tzimmermann@suse.de
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Store the per-page state for fbdev's deferred I/O in struct
fb_deferred_io_pageref. Maintain a list of pagerefs for the pages
that have to be written back to video memory. Update all affected
drivers.
As with pages before, fbdev acquires a pageref when an mmaped page
of the framebuffer is being written to. It holds the pageref in a
list of all currently written pagerefs until it flushes the written
pages to video memory. Writeback occurs periodically. After writeback
fbdev releases all pagerefs and builds up a new dirty list until the
next writeback occurs.
Using pagerefs has a number of benefits.
For pages of the framebuffer, the deferred I/O code used struct
page.lru as an entry into the list of dirty pages. The lru field is
owned by the page cache, which makes deferred I/O incompatible with
some memory pages (e.g., most notably DRM's GEM SHMEM allocator).
struct fb_deferred_io_pageref now provides an entry into a list of
dirty framebuffer pages, freeing lru for use with the page cache.
Drivers also assumed that struct page.index is the page offset into
the framebuffer. This is not true for DRM buffers, which are located
at various offset within a mapped area. struct fb_deferred_io_pageref
explicitly stores an offset into the framebuffer. struct page.index
is now only the page offset into the mapped area.
These changes will allow DRM to use fbdev deferred I/O without an
intermediate shadow buffer.
v3:
* use pageref->offset for sorting
* fix grammar in comment
v2:
* minor fixes in commit message
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220429100834.18898-3-tzimmermann@suse.de
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The fbdev mmap function fb_mmap() unconditionally overrides the
driver's implementation if deferred I/O has been activated. This
makes it hard to implement mmap with anything but a vmalloc()'ed
software buffer. That is specifically a problem for DRM, where
video memory is maintained by a memory manager.
Leave the mmap handling to drivers and expect them to call the
helper for deferred I/O by thmeselves.
v4:
* unlock mm_lock in fb_mmap() error path (Dan)
v3:
* fix warning if fb_mmap is missing (kernel test robot)
v2:
* print a helpful error message if the defio setup is
incorrect (Javier)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220429100834.18898-2-tzimmermann@suse.de
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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next
Linux 5.18-rc5
There was a build fix for arm I wanted in drm-next, so backmerge rather then cherry-pick.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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A workaround makes fbdev hot-unplugging work for framebuffers without
device. The only user for this feature was offb. As each OF framebuffer
now has an associated platform device, the workaround hould no longer
be triggered. Update it with a warning and rewrite the comment. Fbdev
drivers that trigger the hot-unplug workaround really need to be fixed.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Suggested-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220419100405.12600-3-tzimmermann@suse.de
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Create a platform device for each OF-declared framebuffer and have
offb bind to these devices. Allows for real hot-unplugging and other
drivers besides offb.
Originally, offb created framebuffer devices while initializing its
module by parsing the OF device tree. No actual Linux device was set
up. This tied OF framebuffers to offb and makes writing other drivers
for the OF framebuffers complicated. The absence of a Linux device
further prevented real hot-unplugging. Adding a distinct platform
device for each OF framebuffer solves both problems. Specifically, a
DRM driver can now provide graphics output for modern userspace.
Some of the offb init code is now located in the OF initialization.
There's now also an implementation of of_platform_default_populate_init(),
which was missing before. The OF side creates different devices for
either OF display nodes or BootX displays as they require different
handling by the driver. The offb drivers picks up each type of device
and runs the appropriate fbdev initialization.
Tested with OF display nodes on qemu's ppc64le target.
v3:
* declare variable 'node' with function scope (Rob)
v2:
* run PPC code as part of existing initialization (Rob)
* add a few more error warnings (Javier)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220419100405.12600-2-tzimmermann@suse.de
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drm/drm-next has a build fix for the NewVision NV3052C panel
(drivers/gpu/drm/panel/panel-newvision-nv3052c.c), which needs to be
merged back to drm-misc-next, as it was failing to build there.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
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git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for 5.19:
UAPI Changes:
Cross-subsystem Changes:
Core Changes:
- atomic: Add atomic_print_state to private objects
- edid: Constify the EDID parsing API, rework of the API
- dma-buf: Add dma_resv_replace_fences, dma_resv_get_singleton, make
dma_resv_excl_fence private
- format: Support monochrome formats
- fbdev: fixes for cfb_imageblit and sys_imageblit, pagelist
corruption fix
- selftests: several small fixes
- ttm: Rework bulk move handling
Driver Changes:
- Switch all relevant drivers to drm_mode_copy or drm_mode_duplicate
- bridge: conversions to devm_drm_of_get_bridge and panel_bridge,
autosuspend for analogix_dp, audio support for it66121, DSI to DPI
support for tc358767, PLL fixes and I2C support for icn6211
- bridge_connector: Enable HPD if supported
- etnaviv: fencing improvements
- gma500: GEM and GTT improvements, connector handling fixes
- komeda: switch to plane reset helper
- mediatek: MIPI DSI improvements
- omapdrm: GEM improvements
- panel: DT bindings fixes for st7735r, few fixes for ssd130x, new
panels: ltk035c5444t, B133UAN01, NV3052C
- qxl: Allow to run on arm64
- sysfb: Kconfig rework, support for VESA graphic mode selection
- vc4: Add a tracepoint for CL submissions, HDMI YUV output,
HDMI and clock improvements
- virtio: Remove restriction of non-zero blob_flags,
- vmwgfx: support for CursorMob and CursorBypass 4, various
improvements and small fixes
[airlied: fixup conflict with newvision panel callbacks]
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220407085940.pnflvjojs4qw4b77@houat
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This reverts commit d6cd978f7e6b6f6895f8d0c4ce6e5d2c8e979afe.
It has been solved differently already.
Signed-off-by: Helge Deller <deller@gmx.de>
Acked-by: Paul Menzel <pmenzel@molgen.mpg.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220210065824.368355-1-zhouzhouyi@gmail.com
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In function do_remove_conflicting_framebuffers, if device is NULL, there
will be null pointer reference. The patch add a check to the if expression.
Signed-off-by: Zhouyi Zhou <zhouzhouyi@gmail.com>
Acked-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220210065824.368355-1-zhouzhouyi@gmail.com
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Use sysfs_emit instead of scnprintf or sprintf.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Yang Guang <yang.guang5@zte.com.cn>
Signed-off-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/0cb7ca73d9cd7162988a22a24cd18bbcd3d8bb27.1638156341.git.yang.guang5@zte.com.cn
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I messed up the delayed takover path in the locking conversion in
6e7da3af008b ("fbcon: Move console_lock for register/unlink/unregister").
If CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER is enabled, fbcon take-over
doesn't take place when calling fbcon_fb_registered(). Instead, is deferred
using a workqueue and its fbcon_register_existing_fbs() function calls to
fbcon_fb_registered() again for each registered fbcon fb.
This leads to the console_lock tried to be held twice, causing a deadlock.
Fix it by re-extracting the lockless function and using it in the
delayed takeover path, where we need to hold the lock already to
iterate over the list of already registered fb. Well the current code
still is broken in there (since the list is protected by a
registration_lock, which we can't take here because it nests the other
way round with console_lock), but in the future this will be a list
protected by console_lock when this is all sorted out.
While reviewing the broken commit I realized that I've left some
outdated comments about the locking behind. Fix those too.
v2: Improve commit message (Javier)
Reported-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Fixes: 6e7da3af008b ("fbcon: Move console_lock for register/unlink/unregister")
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Du Cheng <ducheng2@gmail.com>
Cc: Claudio Suarez <cssk@net-c.es>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Zheyu Ma <zheyuma97@gmail.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Helge Deller <deller@gmx.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220413082128.348186-1-daniel.vetter@ffwll.ch
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Use min() in order to make code cleaner.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Changcheng Deng <deng.changcheng@zte.com.cn>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220209084810.1561184-1-deng.changcheng@zte.com.cn
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Accessing the one in fbmem.c without taking the right locks is a bad
idea. Instead maintain our own private copy, which is fully protected
by console_lock() (like everything else in fbcon.c). That copy is
serialized through fbcon_fb_registered/unregistered() calls.
Also this means we do not need to hold a full fb_info reference, which
is nice because doing so would mean a refcount loop between the
console and the fb_info. But it's also not nice since it means
console_lock() must be held absolutely everywhere. Well strictly
speaking we could still try to do some refcounting games again by
calling get_fb_info before we drop the console_lock. But things will
get tricky.
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Claudio Suarez <cssk@net-c.es>
Cc: Du Cheng <ducheng2@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220405210335.3434130-18-daniel.vetter@ffwll.ch
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There's a bunch of confusions going on here:
- The deferred fbcon setup notifier should only be cleaned up from
fb_console_exit(), to be symmetric with fb_console_init()
- We also need to make sure we don't race with the work, which means
temporarily dropping the console lock (or we can deadlock)
- That also means no point in clearing deferred_takeover, we are
unloading everything anyway.
- Finally rename fbcon_exit to fbcon_release_all and move it, since
that's what's it doing when being called from consw->con_deinit
through fbcon_deinit.
To answer a question from Sam just quoting my own reply:
> We loose the call to fbcon_release_all() here [in fb_console_exit()].
> We have part of the old fbcon_exit() above, but miss the release parts.
Ah yes that's the entire point of this change. The release_all in the
fbcon exit path was only needed when fbcon was a separate module
indepedent from core fb.ko. Which means it was possible to unload fbcon
while having fbdev drivers registered.
But since we've merged them that has become impossible, so by the time the
fb.ko module can be unloaded, there's guaranteed to be no fbdev drivers
left. And hence removing them is pointless.
v2: Explain the why better (Sam)
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Claudio Suarez <cssk@net-c.es>
Cc: Du Cheng <ducheng2@gmail.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Link: https://patchwork.freedesktop.org/patch/msgid/20220405210335.3434130-17-daniel.vetter@ffwll.ch
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con2fb_release_oldinfo() has a bunch more kfree() calls than
fbcon_exit(), but since kfree() on NULL is harmless doing that in both
places should be ok. This is also a bit more symmetric now again with
fbcon_open also allocating the fbcon_ops structure.
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Du Cheng <ducheng2@gmail.com>
Cc: Claudio Suarez <cssk@net-c.es>
Link: https://patchwork.freedesktop.org/patch/msgid/20220405210335.3434130-16-daniel.vetter@ffwll.ch
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Ideally console_lock becomes an implementation detail of fbcon.c and
doesn't show up anywhere in fbmem.c. We're still pretty far from that,
but at least the register/unregister code is there now.
With this the do_fb_ioctl() handler is the only code in fbmem.c still
calling console_lock().
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Du Cheng <ducheng2@gmail.com>
Cc: Claudio Suarez <cssk@net-c.es>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Zheyu Ma <zheyuma97@gmail.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Cc: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20220405210335.3434130-15-daniel.vetter@ffwll.ch
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This shouldn't be a problem in practice since until we've actually
taken over the console there's nothing we've registered with the
console/vt subsystem, so the exit/unbind path that check this can't
do the wrong thing. But it's confusing, so fix it by moving it a tad
later.
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Du Cheng <ducheng2@gmail.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Claudio Suarez <cssk@net-c.es>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220405210335.3434130-14-daniel.vetter@ffwll.ch
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Now we get to the real motiviation, because fbmem.c insists that
that's the right lock for these.
Ofc fbcon.c has a lot more places where it probably should call
lock_fb_info(). But looking at fbmem.c at least most of these seem to
be protected by console_lock() too, which is probably what papers over
any issues.
Note that this means we're shuffling around a bit the locking sections
for some of the console takeover and unbind paths, but not all:
- console binding/unbinding from the console layer never with
lock_fb_info
- unbind (as opposed to unlink) never bother with lock_fb_info
Also the real serialization against set_par and set_pan are still
doing by wrapping the entire ioctl code in console_lock(). So this
shuffling shouldn't be worse than what we had from a "can you trigger
races?" pov, but it's at least clearer.
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Claudio Suarez <cssk@net-c.es>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Du Cheng <ducheng2@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: William Kucharski <william.kucharski@oracle.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Zheyu Ma <zheyuma97@gmail.com>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Cc: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20220405210335.3434130-13-daniel.vetter@ffwll.ch
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No idea why con2fb_acquire_newinfo() initializes much less than
fbcon_startup(), but so be it. From a quick look most of the
un-initialized stuff should be fairly harmless, but who knows.
Note that the error handling for the con2fb_acquire_newinfo() failure
case was very strange: Callers updated con2fb_map to the new value
before calling this function, but upon error con2fb_acquire_newinfo
reset it to the old value. Since I removed the call to fbcon_release
anyway that strange error path was sticking out like a sore thumb,
hence I removed it. Which also allows us to remove the oldidx
parameter from that function.
v2: Explain what's going on with oldidx and error paths (Sam)
v3: Drop unused variable (0day)
v4: Rebased over bisect fix in previous patch, unchagend end result.
Acked-by: Sam Ravnborg <sam@ravnborg.org> (v2)
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: kernel test robot <lkp@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Claudio Suarez <cssk@net-c.es>
Cc: Du Cheng <ducheng2@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220405210335.3434130-12-daniel.vetter@ffwll.ch
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It doesn't ever fail anymore.
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Claudio Suarez <cssk@net-c.es>
Cc: Du Cheng <ducheng2@gmail.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Link: https://patchwork.freedesktop.org/patch/msgid/20220405210335.3434130-11-daniel.vetter@ffwll.ch
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There's two minor behaviour changes in here:
- in error paths we now consistently call fb_ops->fb_release
- fb_release really can't fail (fbmem.c ignores it too) and there's no
reasonable cleanup we can do anyway.
Note that everything in fbcon.c is protected by the big console_lock()
lock (especially all the global variables), so the minor changes in
ordering of setup/cleanup do not matter.
v2: Explain a bit better why this is all correct (Sam)
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Claudio Suarez <cssk@net-c.es>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Du Cheng <ducheng2@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220405210335.3434130-10-daniel.vetter@ffwll.ch
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It's only one flag and slightly tidier code.
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Du Cheng <ducheng2@gmail.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Claudio Suarez <cssk@net-c.es>
Link: https://patchwork.freedesktop.org/patch/msgid/20220405210335.3434130-8-daniel.vetter@ffwll.ch
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Allows us to delete a bunch of hand-rolled stuff using a timer plus a
separate work). Also to simplify the code we initialize the
cursor_work completely when we allocate the fbcon_ops structure,
instead of trying to cope with console re-initialization.
The motiviation here is that fbcon code stops using the fb_info.queue,
which helps with locking issues around cleanup and all that in a later
patch.
Also note that this allows us to ditch the hand-rolled work cleanup in
fbcon_exit - we already call fbcon_del_cursor_timer, which takes care
of everything. Plus this was racy anyway.
v2:
- Only INIT_DELAYED_WORK when kzalloc succeeded (Tetsuo)
- Explain that we replace both the timer and a work with the combined
delayed_work (Javier)
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Claudio Suarez <cssk@net-c.es>
Cc: Du Cheng <ducheng2@gmail.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Link: https://patchwork.freedesktop.org/patch/msgid/20220405210335.3434130-7-daniel.vetter@ffwll.ch
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fb_set_var requires we hold the fb_info lock. Or at least this now
matches what the ioctl does ...
Note that ps3fb and sh_mobile_lcdcfb are busted in different ways here,
but I will not fix them up.
Also in practice this isn't a big deal, because really variable fbdev
state is actually protected by console_lock (because fbcon just
doesn't bother with lock_fb_info() at all), and lock_fb_info
protecting anything is really just a neat lie. But that's a much
bigger fish to fry.
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Qing Wang <wangqing@vivo.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220405210335.3434130-6-daniel.vetter@ffwll.ch
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Before
commit 6104c37094e729f3d4ce65797002112735d49cd1
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue Aug 1 17:32:07 2017 +0200
fbcon: Make fbcon a built-time depency for fbdev
it was possible to load fbcon and fbdev drivers in any order, which
means that fbcon init had to handle the case where fbdev drivers where
already registered.
This is no longer possible, hence delete that code.
Note that the exit case is a bit more complex and will be done in a
separate patch.
Since I had to audit the entire fbcon load code I also spotted a wrong
function name in a comment in fbcon_startup(), which this patch also
fixes.
v2: Explain why we also fix the comment (Sam)
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Claudio Suarez <cssk@net-c.es>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Du Cheng <ducheng2@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220405210335.3434130-5-daniel.vetter@ffwll.ch
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Half of it is protected by console_lock, but the other half is a lot
more awkward: Registration/deregistration of fbdev are serialized, but
we don't really clear out anything in con2fb_map and so there's
potential for use-after free mixups.
First step is to encapsulate the lookup.
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Du Cheng <ducheng2@gmail.com>
Cc: Claudio Suarez <cssk@net-c.es>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220405210335.3434130-4-daniel.vetter@ffwll.ch
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Avoids two forward declarations, and more importantly, matches what
I've done in my fbcon scrolling restore patches - so I need this to
avoid a bunch of conflicts in rebasing since we ended up merging
Helge's series instead.
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Du Cheng <ducheng2@gmail.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Claudio Suarez <cssk@net-c.es>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220405210335.3434130-3-daniel.vetter@ffwll.ch
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I didn't bother with any code movement to fix the others, these just
got a bit in the way.
v2: Rebase on top of Helge's reverts.
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org> (v1)
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> (v1)
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Du Cheng <ducheng2@gmail.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Claudio Suarez <cssk@net-c.es>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220405210335.3434130-2-daniel.vetter@ffwll.ch
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Let's start the 5.19 development cycle.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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Easily hit the below list corruption:
==
list_add corruption. prev->next should be next (ffffffffc0ceb090), but
was ffffec604507edc8. (prev=ffffec604507edc8).
WARNING: CPU: 65 PID: 3959 at lib/list_debug.c:26
__list_add_valid+0x53/0x80
CPU: 65 PID: 3959 Comm: fbdev Tainted: G U
RIP: 0010:__list_add_valid+0x53/0x80
Call Trace:
<TASK>
fb_deferred_io_mkwrite+0xea/0x150
do_page_mkwrite+0x57/0xc0
do_wp_page+0x278/0x2f0
__handle_mm_fault+0xdc2/0x1590
handle_mm_fault+0xdd/0x2c0
do_user_addr_fault+0x1d3/0x650
exc_page_fault+0x77/0x180
? asm_exc_page_fault+0x8/0x30
asm_exc_page_fault+0x1e/0x30
RIP: 0033:0x7fd98fc8fad1
==
Figure out the race happens when one process is adding &page->lru into
the pagelist tail in fb_deferred_io_mkwrite(), another process is
re-initializing the same &page->lru in fb_deferred_io_fault(), which is
not protected by the lock.
This fix is to init all the page lists one time during initialization,
it not only fixes the list corruption, but also avoids INIT_LIST_HEAD()
redundantly.
V2: change "int i" to "unsigned int i" (Geert Uytterhoeven)
Signed-off-by: Chuansheng Liu <chuansheng.liu@intel.com>
Fixes: 105a940416fc ("fbdev/defio: Early-out if page is already enlisted")
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220318005003.51810-1-chuansheng.liu@intel.com
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Commit 0d03011894d2 ("fbdev: Improve performance of cfb_imageblit()")
broke cfb_imageblit() for image widths that are not aligned to 8-bit
boundaries. Fix this by handling the trailing pixels on each line
separately. The performance improvements in the original commit do not
regress by this change.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 0d03011894d2 ("fbdev: Improve performance of cfb_imageblit()")
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220313192952.12058-3-tzimmermann@suse.de
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Commit 6f29e04938bf ("fbdev: Improve performance of sys_imageblit()")
broke sys_imageblit() for image width that are not aligned to 8-bit
boundaries. Fix this by handling the trailing pixels on each line
separately. The performance improvements in the original commit do not
regress by this change.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 6f29e04938bf ("fbdev: Improve performance of sys_imageblit()")
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220313192952.12058-2-tzimmermann@suse.de
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Since switch to simplefb/simpledrm VESA graphic mode selection with vga=
kernel parameter is no longer available with legacy BIOS.
The x86 realmode boot code enables the VESA graphic modes when option
FB_BOOT_VESA_SUPPORT is enabled.
This option is selected by vesafb but not simplefb/simpledrm.
To enable use of VESA modes with simplefb in legacy BIOS boot mode drop
dependency of BOOT_VESA_SUPPORT on FB, also drop the FB_ prefix. Select
the option from sysfb rather than the drivers that depend on it.
The BOOT_VESA_SUPPORT is not specific to framebuffer but rather to x86
platform, move it from fbdev to x86 Kconfig.
Fixes: e3263ab389a7 ("x86: provide platform-devices for boot-framebuffers")
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/948c39940a4e99f5b43bdbcbe537faae71a43e1d.1645822213.git.msuchanek@suse.de
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efifb and vesafb requires sysfb implicitly but this is not stated in
Kconfig. Add the dependency.
With that all drivers that require sysfb depend on it so it can default
to disabled.
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/a0fa41e9186653e4c41ad0a28259e5cdc71b1f66.1645822213.git.msuchanek@suse.de
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Requested by Zack for vmwgfx fixes.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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