drm: Select DRM_KMS_HELPER from DRM_DEBUG_DP_MST_TOPOLOGY_REFS

Using "depends on" and "select" for the same Kconfig symbol is known to
cause circular dependencies (cmp. "Kconfig recursive dependency

drm: Select DRM_KMS_HELPER from DRM_DEBUG_DP_MST_TOPOLOGY_REFS

Using "depends on" and "select" for the same Kconfig symbol is known to
cause circular dependencies (cmp. "Kconfig recursive dependency
limitations" in Documentation/kbuild/kconfig-language.rst.
DRM drivers are selecting drm helpers so do the same for
DRM_DEBUG_DP_MST_TOPOLOGY_REFS.
Fixes following circular dependency reported on x86 for the downstream
Asahi Linux tree:

error: recursive dependency detected!
symbol DRM_KMS_HELPER is selected by DRM_GEM_SHMEM_HELPER
symbol DRM_GEM_SHMEM_HELPER is selected by RUST_DRM_GEM_SHMEM_HELPER
symbol RUST_DRM_GEM_SHMEM_HELPER is selected by DRM_ASAHI
symbol DRM_ASAHI depends on RUST
symbol RUST depends on CALL_PADDING
symbol CALL_PADDING depends on OBJTOOL
symbol OBJTOOL is selected by STACK_VALIDATION
symbol STACK_VALIDATION depends on UNWINDER_FRAME_POINTER
symbol UNWINDER_FRAME_POINTER is part of choice block at arch/x86/Kconfig.debug:224
symbol <choice> unknown is visible depending on UNWINDER_GUESS
symbol UNWINDER_GUESS prompt is visible depending on STACKDEPOT
symbol STACKDEPOT is selected by DRM_DEBUG_DP_MST_TOPOLOGY_REFS
symbol DRM_DEBUG_DP_MST_TOPOLOGY_REFS depends on DRM_KMS_HELPER

Fixes: 12a280c72868 ("drm/dp_mst: Add topology ref history tracking for debugging")
Cc: [email protected]
Signed-off-by: Janne Grunau <[email protected]>
Acked-by: Thomas Zimmermann <[email protected]>
Link: https://lore.kernel.org/r/20250304-drm_debug_dp_mst_topo_kconfig-v1-1-e16fd152f258@jannau.net
Signed-off-by: Alyssa Rosenzweig <[email protected]>

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drm/gpusvm: Add support for GPU Shared Virtual Memory

This patch introduces support for GPU Shared Virtual Memory (SVM) in the
Direct Rendering Manager (DRM) subsystem. SVM allows for seamless
shari

drm/gpusvm: Add support for GPU Shared Virtual Memory

This patch introduces support for GPU Shared Virtual Memory (SVM) in the
Direct Rendering Manager (DRM) subsystem. SVM allows for seamless
sharing of memory between the CPU and GPU, enhancing performance and
flexibility in GPU computing tasks.

The patch adds the necessary infrastructure for SVM, including data
structures and functions for managing SVM ranges and notifiers. It also
provides mechanisms for allocating, deallocating, and migrating memory
regions between system RAM and GPU VRAM.

This is largely inspired by GPUVM.

v2:
- Take order into account in check pages
- Clear range->pages in get pages error
- Drop setting dirty or accessed bit in get pages (Vetter)
- Remove mmap assert for cpu faults
- Drop mmap write lock abuse (Vetter, Christian)
- Decouple zdd from range (Vetter, Oak)
- Add drm_gpusvm_range_evict, make it work with coherent pages
- Export drm_gpusvm_evict_to_sram, only use in BO evict path (Vetter)
- mmget/put in drm_gpusvm_evict_to_sram
- Drop range->vram_alloation variable
- Don't return in drm_gpusvm_evict_to_sram until all pages detached
- Don't warn on mixing sram and device pages
- Update kernel doc
- Add coherent page support to get pages
- Use DMA_FROM_DEVICE rather than DMA_BIDIRECTIONAL
- Add struct drm_gpusvm_vram and ops (Thomas)
- Update the range's seqno if the range is valid (Thomas)
- Remove the is_unmapped check before hmm_range_fault (Thomas)
- Use drm_pagemap (Thomas)
- Drop kfree_mapping (Thomas)
- dma mapp pages under notifier lock (Thomas)
- Remove ctx.prefault
- Remove ctx.mmap_locked
- Add ctx.check_pages
- s/vram/devmem (Thomas)
v3:
- Fix memory leak drm_gpusvm_range_get_pages
- Only migrate pages with same zdd on CPU fault
- Loop over al VMAs in drm_gpusvm_range_evict
- Make GPUSVM a drm level module
- GPL or MIT license
- Update main kernel doc (Thomas)
- Prefer foo() vs foo for functions in kernel doc (Thomas)
- Prefer functions over macros (Thomas)
- Use unsigned long vs u64 for addresses (Thomas)
- Use standard interval_tree (Thomas)
- s/drm_gpusvm_migration_put_page/drm_gpusvm_migration_unlock_put_page (Thomas)
- Drop err_out label in drm_gpusvm_range_find_or_insert (Thomas)
- Fix kernel doc in drm_gpusvm_range_free_pages (Thomas)
- Newlines between functions defs in header file (Thomas)
- Drop shall language in driver vfunc kernel doc (Thomas)
- Move some static inlines from head to C file (Thomas)
- Don't allocate pages under page lock in drm_gpusvm_migrate_populate_ram_pfn (Thomas)
- Change check_pages to a threshold
v4:
- Fix NULL ptr deref in drm_gpusvm_migrate_populate_ram_pfn (Thomas, Himal)
- Fix check pages threshold
- Check for range being unmapped under notifier lock in get pages (Testing)
- Fix characters per line
- Drop WRITE_ONCE for zdd->devmem_allocation assignment (Thomas)
- Use completion for devmem_allocation->detached (Thomas)
- Make GPU SVM depend on ZONE_DEVICE (CI)
- Use hmm_range_fault for eviction (Thomas)
- Drop zdd worker (Thomas)
v5:
- Select Kconfig deps (CI)
- Set device to NULL in __drm_gpusvm_migrate_to_ram (Matt Auld, G.G.)
- Drop Thomas's SoB (Thomas)
- Add drm_gpusvm_range_start/end/size helpers (Thomas)
- Add drm_gpusvm_notifier_start/end/size helpers (Thomas)
- Absorb drm_pagemap name changes (Thomas)
- Fix driver lockdep assert (Thomas)
- Move driver lockdep assert to static function (Thomas)
- Assert mmap lock held in drm_gpusvm_migrate_to_devmem (Thomas)
- Do not retry forever on eviction (Thomas)
v6:
- Fix drm_gpusvm_get_devmem_page alignment (Checkpatch)
- Modify Kconfig (CI)
- Compile out lockdep asserts (CI)
v7:
- Add kernel doc for flags fields (CI, Auld)

Cc: Simona Vetter <[email protected]>
Cc: Dave Airlie <[email protected]>
Cc: Christian König <[email protected]>
Cc: Thomas Hellström <[email protected]>
Cc: <[email protected]>
Signed-off-by: Matthew Brost <[email protected]>
Reviewed-by: Thomas Hellström <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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drm: adp: Add Apple Display Pipe driver

This display controller is present on M-series chips and is used
to drive the touchbar display.

Co-developed-by: Janne Grunau <[email protected]>
Signed-off-by: J

drm: adp: Add Apple Display Pipe driver

This display controller is present on M-series chips and is used
to drive the touchbar display.

Co-developed-by: Janne Grunau <[email protected]>
Signed-off-by: Janne Grunau <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Reviewed-by: Neal Gompa <[email protected]>
Signed-off-by: Sasha Finkelstein <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Alyssa Rosenzweig <[email protected]>

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drm/i2c: move TDA998x driver under drivers/gpu/drm/bridge

TDA998x is the HDMI bridge driver, incorporating drm_connector and
optional drm_encoder (created via the component bind API by the TICLDC
an

drm/i2c: move TDA998x driver under drivers/gpu/drm/bridge

TDA998x is the HDMI bridge driver, incorporating drm_connector and
optional drm_encoder (created via the component bind API by the TICLDC
and HDLCD drivers). Thus it should be residing together with the other
DRM bridge drivers under drivers/gpu/drm/bridge/.

Acked-by: Neil Armstrong <[email protected]>
Acked-by: Liviu Dudau <[email protected]>
Reviewed-by: Laurent Pinchart <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Dmitry Baryshkov <[email protected]>

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drm: ensure drm headers are self-contained and pass kernel-doc

Ensure drm headers build, are self-contained, have header guards, and
have no kernel-doc warnings, when CONFIG_DRM_HEADER_TEST=y.

The

drm: ensure drm headers are self-contained and pass kernel-doc

Ensure drm headers build, are self-contained, have header guards, and
have no kernel-doc warnings, when CONFIG_DRM_HEADER_TEST=y.

The mechanism follows similar patters used in i915, xe, and usr/include.

To cover include/drm, we need to recurse there using the top level
Kbuild and the new include/Kbuild files.

v4: check for CONFIG_WERROR in addition to CONFIG_DRM_WERROR

v3: adapt to upstream build changes

v2: make DRM_HEADER_TEST depend on DRM

Suggested-by: Daniel Vetter <[email protected]>
Cc: David Airlie <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: Maarten Lankhorst <[email protected]>
Cc: Maxime Ripard <[email protected]>
Cc: Thomas Zimmermann <[email protected]>
Cc: Masahiro Yamada <[email protected]>
Acked-by: Thomas Zimmermann <[email protected]>
Acked-by: Simona Vetter <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/d8ad1c6d707f38a55987f616cb9650aef30b84e1.1737556766.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <[email protected]>

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drm: select DRM_KMS_HELPER from DRM_GEM_SHMEM_HELPER

In the combination of DRM_KMS_HELPER=m, DRM_GEM_SHMEM_HELPER=y, DRM_FBDEV_EMULATION=y,
The shmem code fails to link against the KMS helpers:

x86

drm: select DRM_KMS_HELPER from DRM_GEM_SHMEM_HELPER

In the combination of DRM_KMS_HELPER=m, DRM_GEM_SHMEM_HELPER=y, DRM_FBDEV_EMULATION=y,
The shmem code fails to link against the KMS helpers:

x86_64-linux-ld: vmlinux.o: in function `drm_fbdev_shmem_driver_fbdev_probe':
(.text+0xeec601): undefined reference to `drm_fb_helper_alloc_info'
x86_64-linux-ld: (.text+0xeec633): undefined reference to `drm_fb_helper_fill_info'
x86_64-linux-ld: vmlinux.o: in function `drm_fbdev_shmem_get_page':
drm_fbdev_shmem.c:(.text+0xeec7d2): undefined reference to `drm_gem_fb_get_obj'
x86_64-linux-ld: vmlinux.o: in function `drm_fbdev_shmem_fb_mmap':
drm_fbdev_shmem.c:(.text+0xeec9f6): undefined reference to `drm_gem_fb_get_obj'
x86_64-linux-ld: vmlinux.o: in function `drm_fbdev_shmem_defio_imageblit':
(.rodata+0x5b2288): undefined reference to `drm_fb_helper_check_var'
x86_64-linux-ld: (.rodata+0x5b2290): undefined reference to `drm_fb_helper_set_par'

This can happen for a number of device drivers that select DRM_GEM_SHMEM_HELPER
without also selecting DRM_KMS_HELPER. To work around this, add another select
that forces DRM_KMS_HELPER to be built-in rather than a loadable module, but
only if FBDEV emulation is also enabled. DRM_TTM_HELPER and DRM_GEM_DMA_HELPER
look like they have the same problem in theory even if there is no possible
configuration that shows it. For consistency, do the same change to those.

Closes: https://lore.kernel.org/all/[email protected]
Reported-by: Marc Kleine-Budde <[email protected]>
Tested-by: Marc Kleine-Budde <[email protected]>
Reviewed-by: Thomas Zimmermann <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Thomas Zimmermann <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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drm: rework FB_CORE dependency

The 'select FB_CORE' statement moved from CONFIG_DRM to DRM_CLIENT_LIB,
but there are now configurations that have code calling into fb_core
as built-in even though th

drm: rework FB_CORE dependency

The 'select FB_CORE' statement moved from CONFIG_DRM to DRM_CLIENT_LIB,
but there are now configurations that have code calling into fb_core
as built-in even though the client_lib itself is a loadable module:

x86_64-linux-ld: drivers/gpu/drm/drm_fb_helper.o: in function `drm_fb_helper_set_suspend':
drm_fb_helper.c:(.text+0x2c6): undefined reference to `fb_set_suspend'
x86_64-linux-ld: drivers/gpu/drm/drm_fb_helper.o: in function `drm_fb_helper_resume_worker':
drm_fb_helper.c:(.text+0x2e1): undefined reference to `fb_set_suspend'

In addition to DRM_CLIENT_LIB, the 'select' needs to be at least in
DRM_KMS_HELPER and DRM_GEM_SHMEM_HELPER, so add it here.

This patch is the KMS_HELPER part of [1].

Fixes: dadd28d4142f ("drm/client: Add client-lib module")
Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by: Thomas Zimmermann <[email protected]>
Link: https://patchwork.freedesktop.org/series/141411/ # 1
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Thomas Zimmermann <[email protected]>

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drm/fbdev: Select FB_CORE dependency for fbdev on DMA and TTM

Select FB_CORE if GEM's DMA and TTM implementations support fbdev
emulation. Fixes linker errors about missing symbols from the fbdev
su

drm/fbdev: Select FB_CORE dependency for fbdev on DMA and TTM

Select FB_CORE if GEM's DMA and TTM implementations support fbdev
emulation. Fixes linker errors about missing symbols from the fbdev
subsystem.

Also see [1] for a related SHMEM fix.

Fixes: dadd28d4142f ("drm/client: Add client-lib module")
Signed-off-by: Thomas Zimmermann <[email protected]>
Link: https://patchwork.freedesktop.org/series/141411/ # 1
Reviewed-by: Arnd Bergmann <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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drm/panic: Move drawing functions to drm_draw

Move the color conversions, blit and fill functions to drm_draw.c,
so that they can be re-used by drm_log.
drm_draw is internal to the drm subsystem, an

drm/panic: Move drawing functions to drm_draw

Move the color conversions, blit and fill functions to drm_draw.c,
so that they can be re-used by drm_log.
drm_draw is internal to the drm subsystem, and shouldn't be used by
gpu drivers.

Signed-off-by: Jocelyn Falempe <[email protected]>
Reviewed-by: Thomas Zimmermann <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

show more ...

drm: rework FB_CORE dependency

The 'select FB_CORE' statement moved from CONFIG_DRM to DRM_CLIENT_LIB,
but there are now configurations that have code calling into fb_core
as built-in even though th

drm: rework FB_CORE dependency

The 'select FB_CORE' statement moved from CONFIG_DRM to DRM_CLIENT_LIB,
but there are now configurations that have code calling into fb_core
as built-in even though the client_lib itself is a loadable module:

x86_64-linux-ld: drivers/gpu/drm/drm_fbdev_shmem.o: in function `drm_fbdev_shmem_driver_fbdev_probe':
drm_fbdev_shmem.c:(.text+0x1fc): undefined reference to `fb_deferred_io_init'
x86_64-linux-ld: drivers/gpu/drm/drm_fbdev_shmem.o: in function `drm_fbdev_shmem_fb_destroy':
drm_fbdev_shmem.c:(.text+0x2e1): undefined reference to `fb_deferred_io_cleanup'

In addition to DRM_CLIENT_LIB, the 'select' needs to be at least in
two more parts, DRM_KMS_HELPER and DRM_GEM_SHMEM_HELPER, so add those
here.

v3:
- Remove FB_CORE from DRM_KMS_HELPER to avoid circular dependency

Fixes: dadd28d4142f ("drm/client: Add client-lib module")
Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by: Thomas Zimmermann <[email protected]>
Signed-off-by: Thomas Zimmermann <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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drm: Add panel backlight quirks

Panels using a PWM-controlled backlight source do not have a standard
way to communicate their valid PWM ranges.
On x86 the ranges are read from ACPI through driver-s

drm: Add panel backlight quirks

Panels using a PWM-controlled backlight source do not have a standard
way to communicate their valid PWM ranges.
On x86 the ranges are read from ACPI through driver-specific tables.
The built-in ranges are not necessarily correct, or may grow stale if an
older device can be retrofitted with newer panels.

Add a quirk infrastructure with which the minimum valid backlight value
can be maintained as part of the kernel.

Signed-off-by: Thomas Weißschuh <[email protected]>
Tested-by: Dustin L. Howett <[email protected]>
Reviewed-by: Mario Limonciello <[email protected]>
Reviewed-by: Harry Wentland <[email protected]>
Signed-off-by: Mario Limonciello <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/20241111-amdgpu-min-backlight-quirk-v7-1-f662851fda69@weissschuh.net

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drm: Move client code to clients/ subdirectory

Just move some files around to keep source code well organized. Plus
fix a type in the help text of CONFIG_DRM_FBDEV_LEAK_PHYS_SMEM. No
functional chan

drm: Move client code to clients/ subdirectory

Just move some files around to keep source code well organized. Plus
fix a type in the help text of CONFIG_DRM_FBDEV_LEAK_PHYS_SMEM. No
functional changes.

Signed-off-by: Thomas Zimmermann <[email protected]>
Reviewed-by: Jocelyn Falempe <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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drm/client: Add client-lib module

Add drm_client_lib.ko to contain DRM's built-in client. Move the
existing client for fbdev emulation into the new module. Protect the
new module behind CONFIG_DRM_C

drm/client: Add client-lib module

Add drm_client_lib.ko to contain DRM's built-in client. Move the
existing client for fbdev emulation into the new module. Protect the
new module behind CONFIG_DRM_CLIENT_LIB.

The Kconfig rules separate the DRM drivers from the DRM clients. A
driver can opt into the default clients, but the user configures
each client individually. To do so, DRM drivers still select
DRM_CLIENT_SELECTION. The option is now a tristate that further
selects all dependencies of the enabled DRM clients. There's
a menu option for each client. Enabling at least one client also
selects DRM_CLIENT_SETUP, so that drivers call drm_client_setup().
New DRM clients should depend on DRM_CLIENT_SELECTION.

There are existing kernel options in drm_fb_helper.o, so leave this
file in the KMS-helper module for now.

v5:
- leave fbdev helpers in drm_kms_helper.ko for now
v3:
- fix commit changelog
v2:
- keep client code in core
- protect lib with DRM_CLIENT_LIB
- remove duplicate line from Makefile (Jocelyn)

Signed-off-by: Thomas Zimmermann <[email protected]>
Reviewed-by: Jonathan Cavitt <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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drm/client: Make client support optional

Only build client code if DRM_CLIENT has been selected. Automatially
do so if one of the default clients has been enabled. If client support
has been disable

drm/client: Make client support optional

Only build client code if DRM_CLIENT has been selected. Automatially
do so if one of the default clients has been enabled. If client support
has been disabled, the helpers for client-related events are empty and
the regular client functions are not present.

Amdgpu has an internal DRM client, so it has to select DRM_CLIENT by
itself unconditionally.

v3:
- provide empty drm_client_debugfs_init() if DRM_CLIENT=n (kernel
test robot)

Signed-off-by: Thomas Zimmermann <[email protected]>
Cc: Alex Deucher <[email protected]>
Cc: "Christian König" <[email protected]>
Cc: Xinhui Pan <[email protected]>
Reviewed-by: Jonathan Cavitt <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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drm/fbdev: Select fbdev I/O helpers from modules that require them

Fbdev emulation for SHMEM and TTM requires helpers from the fbdev
subsystem. Select them from the modules that use them instead of

drm/fbdev: Select fbdev I/O helpers from modules that require them

Fbdev emulation for SHMEM and TTM requires helpers from the fbdev
subsystem. Select them from the modules that use them instead of the
core DRM module.

Signed-off-by: Thomas Zimmermann <[email protected]>
Reviewed-by: Jonathan Cavitt <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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drm/fbdev-dma: Select FB_DEFERRED_IO

Commit 808a40b69468 ("drm/fbdev-dma: Implement damage handling and
deferred I/O") added deferred I/O for fbdev-dma. Also select the
Kconfig symbol FB_DEFERRED_IO

drm/fbdev-dma: Select FB_DEFERRED_IO

Commit 808a40b69468 ("drm/fbdev-dma: Implement damage handling and
deferred I/O") added deferred I/O for fbdev-dma. Also select the
Kconfig symbol FB_DEFERRED_IO (via FB_DMAMEM_HELPERS_DEFERRED). Fixes
build errors about missing fbdefio, such as

drivers/gpu/drm/drm_fbdev_dma.c:218:26: error: 'struct drm_fb_helper' has no member named 'fbdefio'
218 | fb_helper->fbdefio.delay = HZ / 20;
| ^~
drivers/gpu/drm/drm_fbdev_dma.c:219:26: error: 'struct drm_fb_helper' has no member named 'fbdefio'
219 | fb_helper->fbdefio.deferred_io = drm_fb_helper_deferred_io;
| ^~
drivers/gpu/drm/drm_fbdev_dma.c:221:21: error: 'struct fb_info' has no member named 'fbdefio'
221 | info->fbdefio = &fb_helper->fbdefio;
| ^~
drivers/gpu/drm/drm_fbdev_dma.c:221:43: error: 'struct drm_fb_helper' has no member named 'fbdefio'
221 | info->fbdefio = &fb_helper->fbdefio;
| ^~

Signed-off-by: Thomas Zimmermann <[email protected]>
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Fixes: 808a40b69468 ("drm/fbdev-dma: Implement damage handling and deferred I/O")
Cc: Thomas Zimmermann <[email protected]>
Cc: Javier Martinez Canillas <[email protected]>
Cc: Maarten Lankhorst <[email protected]>
Cc: Maxime Ripard <[email protected]>
Cc: <[email protected]> # v6.11+
Reviewed-by: Jonathan Cavitt <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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drm/panic: Select ZLIB_DEFLATE for DRM_PANIC_SCREEN_QR_CODE

Under `CONFIG_DRM_PANIC_SCREEN_QR_CODE=y`, zlib is used:

ld.lld: error: undefined symbol: zlib_deflate_workspacesize
>>> referenc

drm/panic: Select ZLIB_DEFLATE for DRM_PANIC_SCREEN_QR_CODE

Under `CONFIG_DRM_PANIC_SCREEN_QR_CODE=y`, zlib is used:

ld.lld: error: undefined symbol: zlib_deflate_workspacesize
>>> referenced by drm_panic.c
>>> drivers/gpu/drm/drm_panic.o:(drm_panic_qr_init) in archive vmlinux.a

Thus select `CONFIG_ZLIB_DEFLATE`.

Fixes: cb5164ac43d0 ("drm/panic: Add a QR code panic screen")
Signed-off-by: Miguel Ojeda <[email protected]>
Reviewed-by: Jocelyn Falempe <[email protected]>
Signed-off-by: Jocelyn Falempe <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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drm/hyperv_drm: Run DRM default client setup

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the co

drm/hyperv_drm: Run DRM default client setup

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

v5:
- select DRM_CLIENT_SELECTION

Signed-off-by: Thomas Zimmermann <[email protected]>
Cc: Deepak Rawat <[email protected]>
Reviewed-by: Deepak Rawat <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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drm: Add client-agnostic setup helper

DRM may support multiple in-kernel clients that run as soon as a DRM
driver has been registered. To select the client(s) in a single place,
introduce drm_client

drm: Add client-agnostic setup helper

DRM may support multiple in-kernel clients that run as soon as a DRM
driver has been registered. To select the client(s) in a single place,
introduce drm_client_setup().

Drivers that call the new helper automatically instantiate the kernel's
configured default clients. Only fbdev emulation is currently supported.
Later versions can add support for DRM-based logging, a boot logo or even
a console.

Some drivers handle the color mode for clients internally. Provide the
helper drm_client_setup_with_color_mode() for them.

Using the new interface requires the driver to select
DRM_CLIENT_SELECTION in its Kconfig. For now this only enables the
client-setup helpers if the fbdev client has been configured by the
user. A future patchset will further modularize client support and
rework DRM_CLIENT_SELECTION to select the correct dependencies for
all its clients.

v5:
- add CONFIG_DRM_CLIENT_SELECTION und DRM_CLIENT_SETUP
v4:
- fix docs for drm_client_setup_with_fourcc() (Geert)
v3:
- fix build error
v2:
- add drm_client_setup_with_fourcc() (Laurent)
- push default-format handling into actual clients

Signed-off-by: Thomas Zimmermann <[email protected]>
Reviewed-by: Laurent Pinchart <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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drm/panic: Add a QR code panic screen

This patch adds a new panic screen, with a QR code and the kmsg data
embedded.
If DRM_PANIC_SCREEN_QR_CODE_URL is set, then the kmsg data will be
compressed wit

drm/panic: Add a QR code panic screen

This patch adds a new panic screen, with a QR code and the kmsg data
embedded.
If DRM_PANIC_SCREEN_QR_CODE_URL is set, then the kmsg data will be
compressed with zlib and encoded as a numerical segment, and appended
to the URL as a URL parameter. This allows to save space, and put
about ~7500 bytes of kmsg data, in a V40 QR code.
Linux distributions can customize the URL, and put a web frontend to
directly open a bug report with the kmsg data.

Otherwise the kmsg data will be encoded as a binary segment (ie raw
ascii) and only a maximum of 2953 bytes of kmsg data will be
available in the QR code.

You can also limit the QR code size with DRM_PANIC_SCREEN_QR_VERSION.

Signed-off-by: Jocelyn Falempe <[email protected]>
Reviewed-by: Alice Ryhl <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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drm/panic: Remove build time dependency with FRAMEBUFFER_CONSOLE

Now that fbcon has the skip_panic option, there is no more conflicts
between drm_panic and fbcon.
Remove the build time dependency, s

drm/panic: Remove build time dependency with FRAMEBUFFER_CONSOLE

Now that fbcon has the skip_panic option, there is no more conflicts
between drm_panic and fbcon.
Remove the build time dependency, so they can be both enabled.

Signed-off-by: Jocelyn Falempe <[email protected]>
Reviewed-by: Javier Martinez Canillas <[email protected]>
Reviewed-by: Daniel Vetter <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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drm/gpuvm: fix missing dependency to DRM_EXEC

In commit 50c1a36f594b ("drm/gpuvm: track/lock/validate external/evicted
objects") we started using drm_exec, but did not select DRM_EXEC in the
Kconfig

drm/gpuvm: fix missing dependency to DRM_EXEC

In commit 50c1a36f594b ("drm/gpuvm: track/lock/validate external/evicted
objects") we started using drm_exec, but did not select DRM_EXEC in the
Kconfig for DRM_GPUVM, fix this.

Cc: Christian König <[email protected]>
Cc: Boris Brezillon <[email protected]>
Cc: Thomas Hellström <[email protected]>
Fixes: 50c1a36f594b ("drm/gpuvm: track/lock/validate external/evicted objects")
Signed-off-by: Danilo Krummrich <[email protected]>
Reviewed-by: Christian König <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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drm/panic: Do not select DRM_KMS_HELPER

DRM core code cannot call into DRM helper code, as this would lead to
circular references in the modular case. Hence drop the selection of
DRM_KMS_HELPER. I

drm/panic: Do not select DRM_KMS_HELPER

DRM core code cannot call into DRM helper code, as this would lead to
circular references in the modular case. Hence drop the selection of
DRM_KMS_HELPER. It was unused anyway, as v10 switched from using
the DRM format helpers to its own color format conversion, cfr. commit
9544309775c3 ("drm/panic: Add support for color format conversion").

Remove the unneeded include of <drm/drm_format_helper.h>.

Fixes: bf9fb17c6672 ("drm/panic: Add a drm panic handler")
Signed-off-by: Geert Uytterhoeven <[email protected]>
Reviewed-by: Jocelyn Falempe <[email protected]>
Signed-off-by: Jocelyn Falempe <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/60155f8c939ed286e324a7c12a1daa69fe49fcf6.1719391132.git.geert+renesas@glider.be

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drm/panic: Spelling s/formater/formatter/

Fix a misspelling of "formatter".

Fixes: 54034bebb22fd4be ("drm/panic: Add a kmsg panic screen")
Signed-off-by: Geert Uytterhoeven <[email protected]

drm/panic: Spelling s/formater/formatter/

Fix a misspelling of "formatter".

Fixes: 54034bebb22fd4be ("drm/panic: Add a kmsg panic screen")
Signed-off-by: Geert Uytterhoeven <[email protected]>
Reviewed-by: Jocelyn Falempe <[email protected]>
Signed-off-by: Jocelyn Falempe <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/5a11f8caf8759aaa22d421034d3047368e9d5f33.1718305355.git.geert+renesas@glider.be

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drm/ttm/tests: Add tests with mock resource managers

Add mock resource manager to test ttm_bo_validate() with non-system
placements. Update KConfig entry to enable DRM Buddy allocator, used
by the m

drm/ttm/tests: Add tests with mock resource managers

Add mock resource manager to test ttm_bo_validate() with non-system
placements. Update KConfig entry to enable DRM Buddy allocator, used
by the mock manager. Update move function to do more than just assign
a resource.

Signed-off-by: Karolina Stolarek <[email protected]>
Tested-by: Somalapuram, Amaranath <[email protected]>
Reviewed-by: Thomas Hellström <[email protected]>
Signed-off-by: Arunpravin Paneer Selvam <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/664791dbb7cbada29e705d2fcaf176023f1b8649.1718192625.git.karolina.stolarek@intel.com

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