m68k: pgtable: Add missing #include <asm/page.h>

When just including <linux/pgtable.h>:

    include/asm-generic/pgtable-nop4d.h:9:18: error: unknown type name ‘pgd_t’
9 | typedef struct { pgd_t pgd; } p4d_t;
  |                  ^~~~~

Make <asm/pgtable.h> self-contained by including <asm/page.h>.

Reported-by: Jani Nikula <jani.nikula@intel.com>
Closes: https://lore.kernel.org/r/878r2uxwha.fsf@intel.com
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/af9e22b878f59223adb593f5bbd5b61432120010.1709898638.git.jani.nikula@intel.com

drm/i915/pxp: fix i915_pxp_tee_interface.h kernel-doc warnings

Make documentation match code. Slightly fix up the documentation
comments while at it.

v2:
- Move comments next to members instead of struct comment (Lucas)
- Small fixups while at it

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/7c26256dc00f970f94d145b73e341c36f553dfe4.1709898638.git.jani.nikula@intel.com

drm/i915/hdcp: fix i915_hdcp_interface.h kernel-doc warnings

Make the documentation match code.

v2: Small fixups while at it (Lucas)

Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5c7ba8db172101c40b686463f169ec579a509f29.1709898638.git.jani.nikula@intel.com

drm/i915: fix i915_gsc_proxy_mei_interface.h kernel-doc

There's no proper way to document function pointer members, but at least
silence the warnings.

Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a84bd76162290940f709f5cb6e432e5e1f75a3b9.1709898638.git.jani.nikula@intel.com

drm/encoder: improve drm_encoder_slave.h kernel-doc

Document structs drm_encoder_slave_funcs, drm_encoder_slave, and
drm_i2c_encoder_driver.

v2: Actually document the structs instead of just silencing kernel-doc

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/19bc9672c8ae4f7aee235665a4d2360e8790193d.1709898638.git.jani.nikula@intel.com

drm: add missing header guards to drm_crtc_helper_internal.h

Including the file twice can lead to errors.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b5020cdc2ff6d2f4992ea25cf88d528e4738d700.1709898638.git.jani.nikula@intel.com

drm: add missing header guards to drm_crtc_internal.h

Including the file twice can lead to errors.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/7ad51d9fb9c42c9901c5c1d5d16e32e857da9758.1709898638.git.jani.nikula@intel.com

drm/gma500: Remove unused intel-mid.h

intel-mid.h is providing some core parts of the South Complex PM,
which are usually are not used by individual drivers. In particular,
this driver doesn't use it, so simply remove the unused header.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240305160902.1363835-1-andriy.shevchenko@linux.intel.com

dt-bindings: display/lvds-codec: add ti,sn65lvds94

Add compatible strings for TI sn65lvds94, LVDS serdes receiver.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230826215429.1905599-1-dmitry.baryshkov@linaro.org

drm/panel-edp: Add BOE NT116WHM-N44 and CMN N116BCA-EA1

Add support for the following 2 panels:
1. BOE NT116WHM-N44
2. CMN N116BCA-EA1

Signed-off-by: Xuxin Xiong <xuxinxiong@huaqin.corp-partner.google.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240308004757.1048284-1-xuxinxiong@huaqin.corp-partner.google.com

Merge drm/drm-next into drm-misc-next

Backmerging to get the latest fixes from drm-next; specifically the
build fix from the patchset at [1]. Also fixes the build by removing
an unused variable from rzg2l_du_vsp_atomic_flush().

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/series/130720/

Merge tag 'drm-msm-next-2024-03-07' of https://gitlab.freedesktop.org/drm/msm into drm-next

Late updates for v6.9, the main part is CDM (YUV over DP) which was
waiting for drm-misc-next-2024-02-29.

DPU:
- Add support for YUV420 over DP
- Patchset to ease debugging of vblank timeouts
- Small cleanup

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGvedk6OCOZ-NNtGf_pNiGuK9uvWj1MCDZLX9Jo2nHS=Zg@mail.gmail.com

Merge tag 'drm-etnaviv-next-2024-03-07' of https://git.pengutronix.de/git/lst/linux into drm-next

- various code cleanups
- enhancements for NPU and MRT support

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas Stach <l.stach@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/72a783cd98d60f6ebb43b90a6b453eea87224409.camel@pengutronix.de

Merge tag 'drm-xe-next-fixes-2024-03-04' of ssh://gitlab.freedesktop.org/drm/xe/kernel into drm-next

Driver Changes:

- Fix kunit link failure with built-in xe
- Fix one more 32-bit build failure with ARM compiler
- Fix initialization order of topology struct
- Cleanup unused fields in struct xe_vm
- Fix xe_vm leak when handling page fault on a VM not in fault mode
- Drop use of "grouped target" feature in Makefile since that's
  only available in make >= 4.3

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/kaypobelrl7u7rtnu6hg5czs3vptbhs4rp24vnwuo2ajoxysto@l5u7377hz4es

Merge tag 'drm-misc-next-fixes-2024-03-07' of https://anongit.freedesktop.org/git/drm/drm-misc into drm-next

Short summary of fixes pull:

- i915: Fix applying placement flags
- fbdev: Fix build on PowerMacs after header cleanup

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240307124640.GA18593@localhost.localdomain

Merge tag 'amd-drm-next-6.9-2024-03-01' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-next-6.9-2024-03-01:

amdgpu:
- GC 11.5.1 updates
- Misc display cleanups
- NBIO 7.9 updates
- Backlight fixes
- DMUB fixes
- MPO fixes
- atomfirmware table updates
- SR-IOV fixes
- VCN 4.x updates
- use RMW accessors for pci config registers
- PSR fixes
- Suspend/resume fixes
- RAS fixes
- ABM fixes
- Misc code cleanups
- SI DPM fix
- Revert freesync video

amdkfd:
- Misc cleanups
- Error handling fixes

radeon:
- use RMW accessors for pci config registers

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240301204857.13960-1-alexander.deucher@amd.com
Signed-off-by: Dave Airlie <airlied@redhat.com>

drm/suballoc: fix drm_suballoc.h kernel-doc

Rename dma_fence to fence to match code.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/36d18b315fd9a6788484667f644b3fea347fb007.1709749576.git.jani.nikula@intel.com

drm/of: make drm_of.h self-contained

Include <linux/err.h> for ERR_PTR.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/e9b3ea30984b913f6e32ed35e0575438dff8278c.1709749576.git.jani.nikula@intel.com

drm: fix drm_gem_vram_helper.h kernel-doc

Remove excess funcs kernel-doc.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/02000be3455de639f32bde88f632ae8744142083.1709749576.git.jani.nikula@intel.com

drm/lease: make drm_lease.h self-contained

Include <linux/types.h> for types used.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/3a38688e90bb775380aad5b6aad5dce3d9d87ca7.1709749576.git.jani.nikula@intel.com

drm: fix drm_format_helper.h kernel-doc warnings

As the documentation says, all the fields are considered private. Mark
them private also for kernel-doc to silence warnings.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/6dc5b1df34abc10d416c2db5b390440cf56e21ce.1709749576.git.jani.nikula@intel.com

drm/crc: make drm_debugfs_crc.h self-contained and fix kernel-doc

Add a number of require includes and forward declare struct
drm_crtc. s/crc/crcs/ kernel-doc to match code.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/290b006bb348a03bd7c4c062d337df21fdaced53.1709749576.git.jani.nikula@intel.com

drm/dp_mst: fix drm_dp_mst_helper.h kernel-doc

Drop excess vcpi member documentation.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/606eee280718ba372093fdebbda42c7581dbd827.1709749576.git.jani.nikula@intel.com

drm: bridge: samsung-dsim: make samsung-dsim.h self-contained

Include <drm/drm_bridge.h> and forward declare struct platform device.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/9534ca7dfba96580950e116c84ce0fa68fdf93a4.1709749576.git.jani.nikula@intel.com

drm/amdgpu: make amd_asic_type.h self-contained

Include <linux/types.h> for u8.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/115327b880b69b1c8ad157e5ff7f6b419868fab0.1709749576.git.jani.nikula@intel.com

drm/kunit: fix drm_kunit_helpers.h kernel-doc

s/_features/_feat/ to match code.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f909224abc8d542a89b66b957a32f152f42e9bba.1709749576.git.jani.nikula@intel.com

drm: add missing header guards to drm_internal.h

Including the file twice leads to errors.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/6e744360513e581765147ea7b1e693f4bffe03a9.1709749576.git.jani.nikula@intel.com

drm/crtc: make drm_crtc_internal.h self-contained

Forward declare struct drm_printer and include <linux/err.h>.

v2: Include <linux/err.h> (kernel test robot)

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240307083410.2604712-1-jani.nikula@intel.com

drm/ci: update device type for volteer devices

Volteer devices in the collabora lab are categorized under the
asus-cx9400-volteer device type. The majority of these units
has an Intel Core i5-1130G7 CPU, while some of them have a
Intel Core i7-1160G7 CPU instead. So due to this difference,
new device type template is added for the Intel Core i5-1130G7
and i7-1160G7 variants of the Acer Chromebook Spin 514 (CP514-2H)
volteer Chromebooks. So update the same in drm-ci.

https://gitlab.collabora.com/lava/lava/-/merge_requests/149

Fixes: 0119c894ab0d ("drm: Add initial ci/ subdirectory")
Reviewed-by: David Heidelberg <david.heidelberg@collabora.com>
Signed-off-by: Vignesh Raman <vignesh.raman@collabora.com>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Helen Koike <helen.koike@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240307021841.100561-1-vignesh.raman@collabora.com

arch/powerpc: Remove <linux/fb.h> from backlight code

Replace <linux/fb.h> with a forward declaration in <asm/backlight.h> to
resolve an unnecessary dependency. Remove pmac_backlight_curve_lookup()
and struct fb_info from source and header files. The function and the
framebuffer struct are unused. No functional changes.

v3:
* Add Fixes tag (Christophe)
* fix typos in commit message (Jani)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: d565dd3b0824 ("[PATCH] powerpc: More via-pmu backlight fixes")
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> # (powerpc)
Link: https://patchwork.freedesktop.org/patch/msgid/20240306122935.10626-4-tzimmermann@suse.de

macintosh/via-pmu-backlight: Include <linux/backlight.h>

Fix builds with CONFIG_PMAC_BACKLIGHT=y. The include statement for the
backlight header has recently been removed from <linux/fb.h>. Add it to
via-pmu-backlight.c to get the necessary symbols.

Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Closes: https://lore.kernel.org/dri-devel/CA+G9fYsAk5TbqqxFC2W4oHLGA0CbTHMxbeq8QayFXTU75YiueA@mail.gmail.com/
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 11b4eedfc87d ("fbdev: Do not include <linux/backlight.h> in header")
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20240306122935.10626-3-tzimmermann@suse.de

fbdev/chipsfb: Include <linux/backlight.h>

Fix builds with CONFIG_PMAC_BACKLIGHT=y. The include statement for
the backlight header has recently been removed from <linux/fb.h>.

Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Closes: https://lore.kernel.org/dri-devel/CA+G9fYsAk5TbqqxFC2W4oHLGA0CbTHMxbeq8QayFXTU75YiueA@mail.gmail.com/
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 11b4eedfc87d ("fbdev: Do not include <linux/backlight.h> in header")
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20240306122935.10626-2-tzimmermann@suse.de

Merge drm/drm-next into drm-misc-next-fixes

Backmerging to get a few more commits that came from drm-misc-next.
See [1]

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/dri-devel/20240229084806.GA21616@localhost.localdomain/

drm/etnaviv: Restore some id values

The hwdb selection logic as a feature that allows it to mark some fields
as 'don't care'. If we match with such a field we memcpy(..)
the current etnaviv_chip_identity into ident.

This step can overwrite some id values read from the GPU with the
'don't care' value.

Fix this issue by restoring the affected values after the memcpy(..).

As this is crucial for user space to know when this feature works as
expected increment the minor version too.

Fixes: 4078a1186dd3 ("drm/etnaviv: update hwdb selection logic")
Cc: stable@vger.kernel.org
Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Reviewed-by: Tomeu Vizoso <tomeu@tomeuvizoso.net>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

drm: Add CONFIG_DRM_WERROR

Add kconfig to enable -Werror subsystem wide. This is useful for
development and CI to keep the subsystem warning free, while avoiding
issues outside of the subsystem that kernel wide CONFIG_WERROR=y might
hit.

v2: Don't depend on COMPILE_TEST

Reviewed-by: Hamza Mahfooz <hamza.mahfooz@amd.com> # v1
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/afe5ed943414f7ec3044c1547503b9941686a867.1709629403.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm: enable (most) W=1 warnings by default across the subsystem

At least the i915 and amd drivers enable a bunch more compiler warnings
than the kernel defaults.

Extend most of the W=1 warnings to the entire drm subsystem by
default. Use the copy-pasted warnings from scripts/Makefile.extrawarn
with s/KBUILD_CFLAGS/subdir-ccflags-y/ to make it easier to compare and
keep up with them in the future.

This is similar to the approach currently used in i915.

Some of the -Wextra warnings do need to be disabled, just like in
Makefile.extrawarn, but take care to not disable them for W=2 or W=3
builds, depending on the warning.

There are too many -Wformat-truncation warnings to cleanly fix up front;
leave that warning disabled for now.

v3:
- Drop -Wmissing-declarations (already enabled by default)
- Drop -Wmissing-prototypes (already enabled by default)

v2:
- Drop -Wformat-truncation (too many warnings)
- Drop -Wstringop-overflow (already enabled by default)

Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Pan
Cc: Karol Herbst <kherbst@redhat.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Abhinav Kumar <quic_abhinavk@quicinc.com>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Sean Paul <sean@poorly.run>
Cc: Marijn Suijten <marijn.suijten@somainline.org>
Cc: Hamza Mahfooz <hamza.mahfooz@amd.com>
Acked-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sui Jingfeng <sui.jingfeng@linux.dev>
Acked-by: Danilo Krummrich <dakr@redhat.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/a50f1a69d5af72e913996179a75bc3a71d81ebea.1709629403.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/nouveau: move more missing UAPI bits

Those are already de-facto UAPI, so let's just move it into the uapi
header.

Signed-off-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240305133853.2214268-2-kherbst@redhat.com

drm/bridge: Document bridge init order with pre_enable_prev_first

In order to satisfy the MIPI DSI initialization sequence the bridge
init order has been altered with the help of pre_enable_prev_first
in pre_enable and post_disable bridge operations.

Document the affected bridge init order with an example on the
bridge operations helpers.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230328170752.1102347-2-jagan@amarulasolutions.com

drm/bridge: Fix improper bridge init order with pre_enable_prev_first

For a given bridge pipeline if any bridge sets pre_enable_prev_first
flag then the pre_enable for the previous bridge will be called before
pre_enable of this bridge and opposite is done for post_disable.

These are the potential bridge flags to alter bridge init order in order
to satisfy the MIPI DSI host and downstream panel or bridge to function.
However the existing pre_enable_prev_first logic with associated bridge
ordering has broken for both pre_enable and post_disable calls.

[pre_enable]

The altered bridge ordering has failed if two consecutive bridges on a
given pipeline enables the pre_enable_prev_first flag.

Example:
- Panel
- Bridge 1
- Bridge 2 pre_enable_prev_first
- Bridge 3
- Bridge 4 pre_enable_prev_first
- Bridge 5 pre_enable_prev_first
- Bridge 6
- Encoder

In this example, Bridge 4 and Bridge 5 have pre_enable_prev_first.

The logic looks for a bridge which enabled pre_enable_prev_first flag
on each iteration and assigned the previou bridge to limit pointer
if the bridge doesn't enable pre_enable_prev_first flags.

If control found Bridge 2 is pre_enable_prev_first then the iteration
looks for Bridge 3 and found it is not pre_enable_prev_first and assigns
it's previous Bridge 4 to limit pointer and calls pre_enable of Bridge 3
and Bridge 2 and assign iter pointer with limit which is Bridge 4.

Here is the actual problem, for the next iteration control look for
Bridge 5 instead of Bridge 4 has iter pointer in previous iteration
moved to Bridge 4 so this iteration skips the Bridge 4. The iteration
found Bridge 6 doesn't pre_enable_prev_first flags so the limit assigned
to Encoder. From next iteration Encoder skips as it is the last bridge
for reverse order pipeline.

So, the resulting pre_enable bridge order would be,
- Panel, Bridge 1, Bridge 3, Bridge 2, Bridge 6, Bridge 5.

This patch fixes this by assigning limit to next pointer instead of
previous bridge since the iteration always looks for bridge that does
NOT request prev so assigning next makes sure the last bridge on a
given iteration what exactly the limit bridge is.

So, the resulting pre_enable bridge order with fix would be,
- Panel, Bridge 1, Bridge 3, Bridge 2, Bridge 6, Bridge 5, Bridge 4,
  Encoder.

[post_disable]

The altered bridge ordering has failed if two consecutive bridges on a
given pipeline enables the pre_enable_prev_first flag.

Example:
- Panel
- Bridge 1
- Bridge 2 pre_enable_prev_first
- Bridge 3
- Bridge 4 pre_enable_prev_first
- Bridge 5 pre_enable_prev_first
- Bridge 6
- Encoder

In this example Bridge 5 and Bridge 4 have pre_enable_prev_first.

The logic looks for a bridge which enabled pre_enable_prev_first flags
on each iteration and assigned the previou bridge to next and next to
limit pointer if the bridge does enable pre_enable_prev_first flag.

If control starts from Bridge 6 then it found next Bridge 5 is
pre_enable_prev_first and immediately the next assigned to previous
Bridge 6 and limit assignments to next Bridge 6 and call post_enable
of Bridge 6 even though the next consecutive Bridge 5 is enabled with
pre_enable_prev_first. This clearly misses the logic to find the state
of next conducive bridge as everytime the next and limit assigns
previous bridge if given bridge enabled pre_enable_prev_first.

So, the resulting post_disable bridge order would be,
- Encoder, Bridge 6, Bridge 5, Bridge 4, Bridge 3, Bridge 2, Bridge 1,
  Panel.

This patch fixes this by assigning next with previou bridge only if the
bridge doesn't enable pre_enable_prev_first flag and the next further
assign it to limit. This way we can find the bridge that NOT requested
prev to disable last.

So, the resulting pre_enable bridge order with fix would be,
- Encoder, Bridge 4, Bridge 5, Bridge 6, Bridge 2, Bridge 3, Bridge 1,
  Panel.

Validated the bridge init ordering by incorporating dummy bridges in
the sun6i-mipi-dsi pipeline

Fixes: 4fb912e5e190 ("drm/bridge: Introduce pre_enable_prev_first to alter bridge init order")
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Michael Trimarchi <michael@amarulasolutions.com>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230328170752.1102347-1-jagan@amarulasolutions.com

drm/tidss: Use dev_err_probe() over dev_dbg() when failing to probe the port

This gets logged out to /sys/kernel/debug/devices_deferred in the
-EPROBE_DEFER case and as an error otherwise. The message here provides
useful information to the user when troubleshooting why their display is
not working in either case, so let's make it output appropriately.

Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Enric Balletbo i Serra <eballetbo@kernel.org>
Link: https://lore.kernel.org/r/20240228-tidss-dev-err-probe-v1-1-5482252326d3@redhat.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>

drm/panel-edp: Add prepare_to_enable to 200ms for MNC207QS1-1

For MNC207QS1-1 panel, Splash screen occur when switch from VT1 to VT2.
The BL_EN signal does not conform to the VESA protocol.
BL_EN signal needs to be pulled high after video signal.
So add prepare_to_enable to 200ms.

[ dianders: Adjusted subject prefix and added Fixes tag ]

Fixes: 0547692ac146 ("drm/panel-edp: Add several generic edp panels")
Signed-off-by: Zhengqiao Xia <xiazhengqiao@huaqin.corp-partner.google.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240301084006.14422-1-xiazhengqiao@huaqin.corp-partner.google.com

drm/xe: Replace 'grouped target' in Makefile with pattern rule

Since 'grouped target' is used only in 'make' 4.3, it should
be avoided. Replace it with 'multi-target pattern rule' which
has the same behavior.

Fixes: 9616e74b796c ("drm/xe: Add support for OOB workarounds")
Signed-off-by: Dafna Hirschfeld <dhirschfeld@habana.ai>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240302153927.2602241-1-dhirschfeld@habana.ai
[ reword commit message ]
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
(cherry picked from commit 5224ed586ba7f9bba956655a1bfe5b75df7394d4)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

drm/xe: Fix ref counting leak on page fault

If a page fault occurs on VM not in fault a ref can be leaked. Fix this.

Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240301041036.238471-1-matthew.brost@intel.com
(cherry picked from commit 27b5a3f237fe66dbf2288c2b50973aee8a427e41)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

drm/xe: Remove obsolete async_ops from struct xe_vm

When sync binds were reworked and worker removed, async_ops became
obsolete. Remove it.

Fixes: f3e9b1f43458 ("drm/xe: Remove async worker and rework sync binds")
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Francois Dugast <francois.dugast@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240117110908.2362615-1-mika.kuoppala@linux.intel.com
(cherry picked from commit e5f276dc1e4c6475d322bc4672c33ab74b068f3b)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

drm/xe/guc: Fix missing topology init

init_steering_dss need topology dss mask to be init ahead.
Fixed by moving xe_gt_topology_init ahead of xe_gt_mcr_init

Fixes: bf8ec3c3e82c ("drm/xe: Initialize GuC earlier during probe")
Cc: Michał Winiarski <michal.winiarski@intel.com>
Signed-off-by: Zhanjun Dong <zhanjun.dong@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240227164922.281346-2-zhanjun.dong@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
(cherry picked from commit 4c47049d93b7a7fc2230cded84a6aec6bbd3d61e)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

drm/xe/xe2: fix 64-bit division in pte_update_size

This function does not build on 32-bit targets when the compiler
fails to reduce DIV_ROUND_UP() into a shift:

ld.lld: error: undefined symbol: __aeabi_uldivmod
>>> referenced by xe_migrate.c
>>>               drivers/gpu/drm/xe/xe_migrate.o:(pte_update_size) in archive vmlinux.a

There are two instances in this function. Change the first to
use an open-coded shift with the same behavior, and the second
one to a 32-bit calculation, which is sufficient here as the size
is never more than 2^32 pages (16TB).

Fixes: 237412e45390 ("drm/xe: Enable 32bits build")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240226124736.1272949-3-arnd@kernel.org
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
(cherry picked from commit 1408784b599927d2f361bac6dc5170d2ee275f17)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

drm/xe/kunit: fix link failure with built-in xe

When the driver is built-in but the tests are in loadable modules,
the helpers don't actually get put into the driver:

ERROR: modpost: "xe_kunit_helper_alloc_xe_device" [drivers/gpu/drm/xe/tests/xe_test.ko] undefined!

Change the Makefile to ensure they are always part of the driver
even when the rest of the kunit tests are in loadable modules.

Fixes: 5095d13d758b ("drm/xe/kunit: Define helper functions to allocate fake xe device")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240226124736.1272949-1-arnd@kernel.org
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
(cherry picked from commit 0e6fec6da25167a568fbaeb8401d8172069124ad)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

drm/i915: fix applying placement flag

Switching from a separate list to flags introduced a bug here.

We were accidentially ORing the flag before initailizing the placement
and not after. So this code didn't do nothing except producing a
warning.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: a78a8da51b36 ("drm/ttm: replace busy placement with flags v6")
Link: https://patchwork.freedesktop.org/patch/msgid/20240226142759.93130-1-christian.koenig@amd.com
Tested-by: Stephen Rothwell <sfr@canb.auug.org.au> # compile only
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>

drm/msm/dpu: capture snapshot on the first commit_done timeout

In order to debug commit_done timeouts, capture the devcoredump state
when the first timeout occurs after the encoder has been enabled.

Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579850/
Link: https://lore.kernel.org/r/20240226-fd-dpu-debug-timeout-v4-3-51eec83dde23@linaro.org

drm/msm/dpu: split dpu_encoder_wait_for_event into two functions

Stop multiplexing several events via the dpu_encoder_wait_for_event()
function. Split it into two distinct functions two allow separate
handling of those events.

Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579848/
Link: https://lore.kernel.org/r/20240226-fd-dpu-debug-timeout-v4-2-51eec83dde23@linaro.org

drm/msm/dpu: make "vblank timeout" more useful

We have several reports of vblank timeout messages. However after some
debugging it was found that there might be different causes to that.
To allow us to identify the DPU block that gets stuck, include the
actual CTL_FLUSH value into the timeout message.

Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579849/
Link: https://lore.kernel.org/r/20240226-fd-dpu-debug-timeout-v4-1-51eec83dde23@linaro.org

drm/msm/dp: allow YUV420 mode for DP connector when CDM available

All the components of YUV420 over DP are added. Therefore, let's mark the
connector property as true for DP connector when the DP type is not eDP
and when there is a CDM block available.

Changes in v3:
- Move setting the connector's ycbcr_420_allowed parameter so
  that it is not dependent on if the dp_display is not eDP

Changes in v2:
- Check for if dp_catalog has a CDM block available instead of
  checking if VSC SDP is allowed when setting the dp connector's
  ycbcr_420_allowed parameter

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579628/
Link: https://lore.kernel.org/r/20240222194025.25329-20-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu: reserve CDM blocks for DP if mode is YUV420

Reserve CDM blocks for DP if the mode format is YUV420. Currently this
reservation only works for writeback and DP if the format is YUV420. But
this can be easily extented to other YUV formats for DP.

Changes in v2:
- Minor code simplification

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579630/
Link: https://lore.kernel.org/r/20240222194025.25329-19-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu: modify timing engine programming for YUV420 over DP

Adjust the encoder timing engine setup programming in the case of video
mode for YUV420 over DP to accommodate CDM.

Changes in v3:
- Move drm_display_mode's hskew division to another patch
- Minor cleanup

Changes in v2:
- Move timing engine programming to this patch

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579634/
Link: https://lore.kernel.org/r/20240222194025.25329-18-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu: modify encoder programming for CDM over DP

Adjust the encoder format programming in the case of video mode for DP
to accommodate CDM related changes.

Changes in v4:
- Remove hw_cdm check in dpu_encoder_needs_periph_flush()
- Remove hw_cdm check when getting the fmt_fourcc in
  dpu_encoder_phys_vid_enable()

Changes in v2:
- Move timing engine programming to a separate patch from this
  one
- Move update_pending_flush_periph() invocation completely to
  this patch
- Change the logic of dpu_encoder_get_drm_fmt() so that it only
  calls drm_mode_is_420_only() instead of doing additional
  unnecessary checks
- Create new functions msm_dp_needs_periph_flush() and it's
  supporting function dpu_encoder_needs_periph_flush() to check
  if the mode is YUV420 and VSC SDP is enabled before doing a
  peripheral flush

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579641/
Link: https://lore.kernel.org/r/20240222194025.25329-17-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: enable SDP and SDE periph flush update

DP controller can be setup to operate in either SDP update flush mode or
peripheral flush mode based on the DP controller hardware version.

Starting in DP v1.2, the hardware documents require the use of
peripheral flush mode for SDP packets such as PPS OR VSC SDP packets.

In-line with this guidance, lets program the DP controller to use
peripheral flush mode starting DP v1.2

Changes in v4:
- Clear up that DP_MAINLINK_CTRL_FLUSH_MODE register requires
  the use of bits [24:23]
- Modify macros DP_MAINLINK_FLUSH_MODE_UPDATE_SDP and
  DP_MAINLINK_FLUSH_MODE_SDP_PERIPH_UPDATE to explicitly set
  their values in the bits of DP_MAINLINK_CTRL_FLUSH_MODE_MASK

Changes in v3:
- Clear up that the DP_MAINLINK_FLUSH_MODE_SDE_PERIPH_UPDATE
  macro is setting bits [24:23] to a value of 3

Changes in v2:
- Use the original dp_catalog_hw_revision() function to
  correctly check the DP HW version

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579621/
Link: https://lore.kernel.org/r/20240222194025.25329-16-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu: add support of new peripheral flush mechanism

Introduce a peripheral flushing mechanism to decouple peripheral
metadata flushing from timing engine related flush.

Changes in v2:
- Fixed some misalignment issues

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579619/
Link: https://lore.kernel.org/r/20240222194025.25329-15-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: add VSC SDP support for YUV420 over DP

Add support to pack and send the VSC SDP packet for DP. This therefore
allows the transmision of format information to the sinks which is
needed for YUV420 support over DP.

Changes in v5:
- Slightly modify use of drm_dp_vsc_sdp_pack()
- Remove dp_catalog NULL checks
- Modify dp_utils_pack_sdp_header() to more clearly pack the
  header buffer
- Move dp_utils_pack_sdp_header() inside of
  dp_catalog_panel_send_vsc_sdp to clearly show the relationship
  between the header buffer and the vsc_sdp struct
- Due to the last point, remove the dp_utils_pack_vsc_sdp()
  function and only call drm_dp_vsc_sdp_pack() in
  dp_panel_setup_vsc_sdp_yuv_420()

Changes in v4:
- Remove struct msm_dp_sdp_with_parity
- Use dp_utils_pack_sdp_header() to pack the SDP header and
  parity bytes into a buffer
- Use this buffer when writing the VSC SDP data in
  dp_catalog_panel_send_vsc_sdp()
- Write to all of the MMSS_DP_GENERIC0 registers instead of just
  the ones with non-zero values

Changes in v3:
- Create a new struct, msm_dp_sdp_with_parity, which holds the
  packing information for VSC SDP
- Use drm_dp_vsc_sdp_pack() to pack the data into the new
  msm_dp_sdp_with_parity struct instead of specifically packing
  for YUV420 format
- Modify dp_catalog_panel_send_vsc_sdp() to send the VSC SDP
  data using the new msm_dp_sdp_with_parity struct

Changes in v2:
- Rename GENERIC0_SDPSIZE macro to GENERIC0_SDPSIZE_VALID
- Remove dp_sdp from the dp_catalog struct since this data is
  being allocated at the point used
- Create a new function in dp_utils to pack the VSC SDP data
  into a buffer
- Create a new function that packs the SDP header bytes into a
  buffer. This function is made generic so that it can be
  utilized by dp_audio
  header bytes into a buffer
- Create a new function in dp_utils that takes the packed buffer
  and writes to the DP_GENERIC0_* registers
- Split the dp_catalog_panel_config_vsc_sdp() function into two
  to disable/enable sending VSC SDP packets
- Check the DP HW version using the original useage of
  dp_catalog_hw_revision() and correct the version checking
  logic
- Rename dp_panel_setup_vsc_sdp() to
  dp_panel_setup_vsc_sdp_yuv_420() to explicitly state that
  currently VSC SDP is only being set up to support YUV420 modes

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579636/
Link: https://lore.kernel.org/r/20240222194025.25329-14-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: move parity calculation to dp_utils

Parity calculation is necessary for VSC SDP implementation. Therefore
create new files dp_utils.c and dp_utils.h and move the parity
calculating functions here. This ensures that they are usable by SDP
programming in both dp_catalog.c and dp_audio.c

Changes in v3:
- Change ordering of the header byte macros

Changes in v2:
- Create new files dp_utils.c and dp_utils.h
- Move the parity calculation to these new files instead of
  having them in dp_catalog.c and dp_catalog.h

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579617/
Link: https://lore.kernel.org/r/20240222194025.25329-13-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: change clock related programming for YUV420 over DP

Change all relevant DP controller related programming for YUV420 cases.
Namely, change the pixel clock math to consider YUV420 and modify the
MVID programming to consider YUV420.

Changes in v2:
- Move configuration control programming to a different commit
- Slight code simplification
- Add VSC SDP check when doing mode_pclk_khz division in
  dp_bridge_mode_valid

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579640/
Link: https://lore.kernel.org/r/20240222194025.25329-12-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: program config ctrl for YUV420 over DP

Change relevant DP controller related programming for YUV420 cases.
Program the configuration control register to indicate YUV420.

Changes in v2:
- Create a new patch only for configuration control programming

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579615/
Link: https://lore.kernel.org/r/20240222194025.25329-11-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu: move widebus logic to its own API

Widebus enablement is decided by the interfaces based on their specific
checks and that already happens with DSI/DP specific helpers. Let's
invoke these helpers from dpu_encoder_is_widebus_enabled() to make it
cleaner overall.

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579632/
Link: https://lore.kernel.org/r/20240222194025.25329-10-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: check if VSC SDP is supported in DP programming

In the DP driver, check if VSC SDP is supported and propagate this value
to dp_panel. In dp_display's dp_mode, the out_fmt_is_yuv_420 parameter
must also utilize this value since YUV420 is only allowed when VSC SDP
is supported.

Changes in v2:
- Move DP programming when VSC SDP is supported to this patch

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579625/
Link: https://lore.kernel.org/r/20240222194025.25329-9-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: store mode YUV420 information to be used by rest of DP

Wide bus is not supported when the mode is YUV420 in DP. In preparation
for changing the DPU programming to reflect this, the value and
assignment location of wide_bus_en for the DP submodules must be
changed. Move it from boot time in dp_init_sub_modules() to run time in
dp_display_mode_set.

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579614/
Link: https://lore.kernel.org/r/20240222194025.25329-8-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: rename wide_bus_en to wide_bus_supported

Rename wide_bus_en to wide_bus_supported in dp_display_private to
correctly establish that the parameter is referencing if wide bus is
supported instead of enabled.

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579613/
Link: https://lore.kernel.org/r/20240222194025.25329-7-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu: move dpu_encoder_helper_phys_setup_cdm to dpu_encoder

Move dpu_encoder_helper_phys_setup_cdm to dpu_encoder in preparation for
implementing YUV420 over DP, which requires CDM compatibility.

Changes in v2:
- Slightly change the wording of the commit text to make clear
  that YUV over DP requires CDM

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579611/
Link: https://lore.kernel.org/r/20240222194025.25329-6-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu: allow dpu_encoder_helper_phys_setup_cdm to work for DP

Generalize dpu_encoder_helper_phys_setup_cdm to be compatible with DP.

Changes in v2:
- Minor formatting changes
- Move the modification of the dimensions for CDM setup to a new
  patch

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579609/
Link: https://lore.kernel.org/r/20240222194025.25329-5-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu: pass mode dimensions instead of fb size in CDM setup

Modify the output width and height parameters of hw_cdm to utilize the
physical encoder's data instead of obtaining the information from the
framebuffer. CDM is to be set up to utilize the actual output data since
at CDM setup, there is no difference between the two sources.

Changes in v2:
- Move the modification of the dimensions for CDM setup to this
  new patch

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579607/
Link: https://lore.kernel.org/r/20240222194025.25329-4-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu: add division of drm_display_mode's hskew parameter

Setting up the timing engine when the physical encoder has a split role
neglects dividing the drm_display_mode's hskew parameter. Let's fix this
since this must also be done in preparation for implementing YUV420 over
DP.

Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support")
Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579605/
Link: https://lore.kernel.org/r/20240222194025.25329-3-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu: allow certain formats for CDM for DP

CDM block supports formats other than H1V2 for DP. Since we are now
adding support for CDM over DP, relax the checks to allow all other
formats for DP other than H1V2.

Changes in v2:
- Add fixes tag
- Move patch to top of series

Fixes: 0afac0ba6024 ("drm/msm/dpu: add dpu_hw_cdm abstraction for CDM block")
Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579606/
Link: https://lore.kernel.org/r/20240222194025.25329-2-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

Merge tag 'drm-misc-next-2024-02-29' into msm-next

Merge to pick up commit 47f419e07111 ("drm/dp: move
intel_dp_vsc_sdp_pack() to generic helper")

drm-misc-next for v6.9:

UAPI Changes:

Cross-subsystem Changes:

backlight:
- corgi: include backlight header

fbdev:
- Cleanup includes in public header file
- fbtft: Include backlight header

Core Changes:

edid:
- Remove built-in EDID data

dp:
- Avoid AUX transfers on powered-down displays
- Add VSC SDP helpers

modesetting:
- Add sanity checks for polling
- Cleanups

scheduler:
- Cleanups

tests:
- Add helpers for mode-setting tests

Driver Changes:

i915:
- Use shared VSC SDP helper

mgag200:
- Work around PCI write bursts

mxsfb:
- Use managed mode config

nouveau:
- Include backlight header where necessary

qiac:
- Cleanups

sun4:
- HDMI: updates to atomic mode setting

tegra:
- Fix GEM refounting in error paths

tidss:
- Fix multi display
- Fix initial Z position

v3d:
- Support display MMU page size

Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/amdgpu: use GTT only as fallback for VRAM|GTT

Try to fill up VRAM as well by setting the busy flag on GTT allocations.

This fixes the issue that when VRAM was evacuated for suspend it's never
filled up again unless the application is restarted.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229134003.3688-2-christian.koenig@amd.com

drm/ttm: improve idle/busy handling v5

Previously we would never try to move a BO into the preferred placements
when it ever landed in a busy placement since those were considered
compatible.

Rework the whole handling and finally unify the idle and busy handling.
ttm_bo_validate() is now responsible to try idle placement first and then
use the busy placement if that didn't worked.

Drawback is that we now always try the idle placement first for each
validation which might cause some additional CPU overhead on overcommit.

v2: fix kerneldoc warning and coding style
v3: take care of XE as well
v4: keep the ttm_bo_mem_space functionality as it is for now, only add
    new handling for ttm_bo_validate as suggested by Thomas
v5: fix bug pointed out by Matthew

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Zack Rusin <zack.rusin@broadcom.com> v3
Link: https://patchwork.freedesktop.org/patch/msgid/20240229134003.3688-1-christian.koenig@amd.com
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>

Merge tag 'drm-misc-next-fixes-2024-02-29' of https://anongit.freedesktop.org/git/drm/drm-misc into drm-next

Short summary of fixes pull:

i915:
- Fix NULL-pointer deref

imx:
- dcss: Fix resource-size calculation

firmware:
- sysfb: Fix returned error code

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229085331.GA25863@localhost.localdomain

Merge tag 'drm-msm-next-2024-02-29' of https://gitlab.freedesktop.org/drm/msm into drm-next

Updates for v6.9:

Core:
- Correct bindings for MSM8976 and SM8650 platforms
- Start migration of MDP5 platforms to DPU driver
- X1E80100 MDSS support

DPU:
- Improve DSC allocation, fixing several important corner cases
- Add support for SDM630/SDM660 platforms
- Simplify dpu_encoder_phys_ops
- Apply fixes targeting DSC support with a single DSC encoder
- Apply fixes for HCTL_EN timing configuration
- X1E80100 support

DP:
- Refactor parser and power submodules

DSI:
- Clean up obsolete set_split_display support
- Update DSC documentation

MDP5:
- Clean up obsolete set_split_display support

GPU:
- fix sc7180 UBWC config
- fix a7xx LLC config
- new gpu support: a305B, a750, a702
- machine support: SM7150 (different power levels than other a618)
- a7xx devcoredump support

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGtCq=CObbqKNOswWZdPw5dL8jq8BxD_hxP7kOCePUwNrg@mail.gmail.com

Merge tag 'mediatek-drm-next-6.9' of https://git./linux/kernel/git/chunkuang.hu/linux into drm-next

Mediatek DRM Next for Linux 6.9

1. Add display driver for MT8188 VDOSYS1
2. DSI driver cleanups
3. Filter modes according to hardware capability
4. Fix a null pointer crash in mtk_drm_crtc_finish_page_flip

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229162143.28957-1-chunkuang.hu@kernel.org

drm/sun4i: hdmi: Add missing drm_atomic header

Commit 358e76fd613a ("drm/sun4i: hdmi: Consolidate atomic_check and
mode_valid") added a call to drm_atomic_get_new_connector_state() but
didn't include drm_atomic.h which defines it.

On some configuration, this leads to a build failure, presumably because
in the common case the header gets included by an intermediate header
but it isn't always the case.

Let's add a proper include.

Reported-by: Dave Airlie <airlied@redhat.com>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202402291942.zVb1Vx4Y-lkp@intel.com/
Fixes: 358e76fd613a ("drm/sun4i: hdmi: Consolidate atomic_check and mode_valid")
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240301080249.823067-1-mripard@kernel.org

drm/panthor: Add an entry to MAINTAINERS

Add an entry for the Panthor driver to the MAINTAINERS file.

v6:
- Add Maxime's and Heiko's acks

v4:
- Add Steve's R-b

v3:
- Add bindings document as an 'F:' line.
- Add Steven and Liviu as co-maintainers.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229162230.2634044-15-boris.brezillon@collabora.com

dt-bindings: gpu: mali-valhall-csf: Add support for Arm Mali CSF GPUs

Arm has introduced a new v10 GPU architecture that replaces the Job Manager
interface with a new Command Stream Frontend. It adds firmware driven
command stream queues that can be used by kernel and user space to submit
jobs to the GPU.

Add the initial schema for the device tree that is based on support for
RK3588 SoC. The minimum number of clocks is one for the IP, but on Rockchip
platforms they will tend to expose the semi-independent clocks for better
power management.

v6:
- Add Maxime's and Heiko's acks

v5:
- Move the opp-table node under the gpu node

v4:
- Fix formatting issue

v3:
- Cleanup commit message to remove redundant text
- Added opp-table property and re-ordered entries
- Clarified power-domains and power-domain-names requirements for RK3588.
- Cleaned up example

Note: power-domains and power-domain-names requirements for other platforms
are still work in progress, hence the bindings are left incomplete here.

v2:
- New commit

Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229162230.2634044-14-boris.brezillon@collabora.com

drm/panthor: Allow driver compilation

Now that all blocks are available, we can add/update Kconfig/Makefile
files to allow compilation.

v6:
- Add Maxime's and Heiko's acks
- Keep source files alphabetically ordered in the Makefile

v4:
- Add Steve's R-b

v3:
- Add a dep on DRM_GPUVM
- Fix dependencies in Kconfig
- Expand help text to (hopefully) describe which GPUs are to be
  supported by this driver and which are for panfrost.

Co-developed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Steven Price <steven.price@arm.com> # MIT+GPL2 relicensing,Arm
Acked-by: Grant Likely <grant.likely@linaro.org> # MIT+GPL2 relicensing,Linaro
Acked-by: Boris Brezillon <boris.brezillon@collabora.com> # MIT+GPL2 relicensing,Collabora
Reviewed-by: Steven Price <steven.price@arm.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229162230.2634044-13-boris.brezillon@collabora.com

drm/panthor: Add the driver frontend block

This is the last piece missing to expose the driver to the outside
world.

This is basically a wrapper between the ioctls and the other logical
blocks.

v6:
- Add Maxime's and Heiko's acks
- Return a page-aligned BO size to userspace
- Keep header inclusion alphabetically ordered

v5:
- Account for the drm_exec_init() prototype change
- Include platform_device.h

v4:
- Add an ioctl to let the UMD query the VM state
- Fix kernel doc
- Let panthor_device_init() call panthor_device_init()
- Fix cleanup ordering in the panthor_init() error path
- Add Steve's and Liviu's R-b

v3:
- Add acks for the MIT/GPL2 relicensing
- Fix 32-bit support
- Account for panthor_vm and panthor_sched changes
- Simplify the resv preparation/update logic
- Use a linked list rather than xarray for list of signals.
- Simplify panthor_get_uobj_array by returning the newly allocated
  array.
- Drop the "DOC" for job submission helpers and move the relevant
  comments to panthor_ioctl_group_submit().
- Add helpers sync_op_is_signal()/sync_op_is_wait().
- Simplify return type of panthor_submit_ctx_add_sync_signal() and
  panthor_submit_ctx_get_sync_signal().
- Drop WARN_ON from panthor_submit_ctx_add_job().
- Fix typos in comments.

Co-developed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Steven Price <steven.price@arm.com> # MIT+GPL2 relicensing,Arm
Acked-by: Grant Likely <grant.likely@linaro.org> # MIT+GPL2 relicensing,Linaro
Acked-by: Boris Brezillon <boris.brezillon@collabora.com> # MIT+GPL2 relicensing,Collabora
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229162230.2634044-12-boris.brezillon@collabora.com

drm/panthor: Add the scheduler logical block

This is the piece of software interacting with the FW scheduler, and
taking care of some scheduling aspects when the FW comes short of slots
scheduling slots. Indeed, the FW only expose a few slots, and the kernel
has to give all submission contexts, a chance to execute their jobs.

The kernel-side scheduler is timeslice-based, with a round-robin queue
per priority level.

Job submission is handled with a 1:1 drm_sched_entity:drm_gpu_scheduler,
allowing us to delegate the dependency tracking to the core.

All the gory details should be documented inline.

v6:
- Add Maxime's and Heiko's acks
- Make sure the scheduler is initialized before queueing the tick work
  in the MMU fault handler
- Keep header inclusion alphabetically ordered

v5:
- Fix typos
- Call panthor_kernel_bo_destroy(group->syncobjs) unconditionally
- Don't move the group to the waiting list tail when it was already
  waiting for a different syncobj
- Fix fatal_queues flagging in the tiler OOM path
- Don't warn when more than one job timesout on a group
- Add a warning message when we fail to allocate a heap chunk
- Add Steve's R-b

v4:
- Check drmm_mutex_init() return code
- s/drm_gem_vmap_unlocked/drm_gem_vunmap_unlocked/ in
  panthor_queue_put_syncwait_obj()
- Drop unneeded WARN_ON() in cs_slot_sync_queue_state_locked()
- Use atomic_xchg() instead of atomic_fetch_and(0)
- Fix typos
- Let panthor_kernel_bo_destroy() check for IS_ERR_OR_NULL() BOs
- Defer TILER_OOM event handling to a separate workqueue to prevent
  deadlocks when the heap chunk allocation is blocked on mem-reclaim.
  This is just a temporary solution, until we add support for
  non-blocking/failable allocations
- Pass the scheduler workqueue to drm_sched instead of instantiating
  a separate one (no longer needed now that heap chunk allocation
  happens on a dedicated wq)
- Set WQ_MEM_RECLAIM on the scheduler workqueue, so we can handle
  job timeouts when the system is under mem pressure, and hopefully
  free up some memory retained by these jobs

v3:
- Rework the FW event handling logic to avoid races
- Make sure MMU faults kill the group immediately
- Use the panthor_kernel_bo abstraction for group/queue buffers
- Make in_progress an atomic_t, so we can check it without the reset lock
  held
- Don't limit the number of groups per context to the FW scheduler
  capacity. Fix the limit to 128 for now.
- Add a panthor_job_vm() helper
- Account for panthor_vm changes
- Add our job fence as DMA_RESV_USAGE_WRITE to all external objects
  (was previously DMA_RESV_USAGE_BOOKKEEP). I don't get why, given
  we're supposed to be fully-explicit, but other drivers do that, so
  there must be a good reason
- Account for drm_sched changes
- Provide a panthor_queue_put_syncwait_obj()
- Unconditionally return groups to their idle list in
  panthor_sched_suspend()
- Condition of sched_queue_{,delayed_}work fixed to be only when a reset
  isn't pending or in progress.
- Several typos in comments fixed.

Co-developed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229162230.2634044-11-boris.brezillon@collabora.com

drm/panthor: Add the heap logical block

Tiler heap growing requires some kernel driver involvement: when the
tiler runs out of heap memory, it will raise an exception which is
either directly handled by the firmware if some free heap chunks are
available in the heap context, or passed back to the kernel otherwise.
The heap helpers will be used by the scheduler logic to allocate more
heap chunks to a heap context, when such a situation happens.

Heap context creation is explicitly requested by userspace (using
the TILER_HEAP_CREATE ioctl), and the returned context is attached to a
queue through some command stream instruction.

All the kernel does is keep the list of heap chunks allocated to a
context, so they can be freed when TILER_HEAP_DESTROY is called, or
extended when the FW requests a new chunk.

v6:
- Add Maxime's and Heiko's acks

v5:
- Fix FIXME comment
- Add Steve's R-b

v4:
- Rework locking to allow concurrent calls to panthor_heap_grow()
- Add a helper to return a heap chunk if we couldn't pass it to the
  FW because the group was scheduled out

v3:
- Add a FIXME for the heap OOM deadlock
- Use the panthor_kernel_bo abstraction for the heap context and heap
  chunks
- Drop the panthor_heap_gpu_ctx struct as it is opaque to the driver
- Ensure that the heap context is aligned to the GPU cache line size
- Minor code tidy ups

Co-developed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229162230.2634044-10-boris.brezillon@collabora.com

drm/panthor: Add the FW logical block

Contains everything that's FW related, that includes the code dealing
with the microcontroller unit (MCU) that's running the FW, and anything
related to allocating memory shared between the FW and the CPU.

A few global FW events are processed in the IRQ handler, the rest is
forwarded to the scheduler, since scheduling is the primary reason for
the FW existence, and also the main source of FW <-> kernel
interactions.

v6:
- Add Maxime's and Heiko's acks
- Keep header inclusion alphabetically ordered

v5:
- Fix typo in GLB_PERFCNT_SAMPLE definition
- Fix unbalanced panthor_vm_idle/active() calls
- Fallback to a slow reset when the fast reset fails
- Add extra information when reporting a FW boot failure

v4:
- Add a MODULE_FIRMWARE() entry for gen 10.8
- Fix a wrong return ERR_PTR() in panthor_fw_load_section_entry()
- Fix typos
- Add Steve's R-b

v3:
- Make the FW path more future-proof (Liviu)
- Use one waitqueue for all FW events
- Simplify propagation of FW events to the scheduler logic
- Drop the panthor_fw_mem abstraction and use panthor_kernel_bo instead
- Account for the panthor_vm changes
- Replace magic number with 0x7fffffff with ~0 to better signify that
  it's the maximum permitted value.
- More accurate rounding when computing the firmware timeout.
- Add a 'sub iterator' helper function. This also adds a check that a
  firmware entry doesn't overflow the firmware image.
- Drop __packed from FW structures, natural alignment is good enough.
- Other minor code improvements.

Co-developed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229162230.2634044-9-boris.brezillon@collabora.com

drm/panthor: Add the MMU/VM logical block

MMU and VM management is related and placed in the same source file.

Page table updates are delegated to the io-pgtable-arm driver that's in
the iommu subsystem.

The VM management logic is based on drm_gpuva_mgr, and is assuming the
VA space is mostly managed by the usermode driver, except for a reserved
portion of this VA-space that's used for kernel objects (like the heap
contexts/chunks).

Both asynchronous and synchronous VM operations are supported, and
internal helpers are exposed to allow other logical blocks to map their
buffers in the GPU VA space.

There's one VM_BIND queue per-VM (meaning the Vulkan driver can only
expose one sparse-binding queue), and this bind queue is managed with
a 1:1 drm_sched_entity:drm_gpu_scheduler, such that each VM gets its own
independent execution queue, avoiding VM operation serialization at the
device level (things are still serialized at the VM level).

The rest is just implementation details that are hopefully well explained
in the documentation.

v6:
- Add Maxime's and Heiko's acks
- Add Steve's R-b
- Adjust the TRANSCFG value to account for SW VA space limitation on
  32-bit systems
- Keep header inclusion alphabetically ordered

v5:
- Fix a double panthor_vm_cleanup_op_ctx() call
- Fix a race between panthor_vm_prepare_map_op_ctx() and
  panthor_vm_bo_put()
- Fix panthor_vm_pool_destroy_vm() kernel doc
- Fix paddr adjustment in panthor_vm_map_pages()
- Fix bo_offset calculation in panthor_vm_get_bo_for_va()

v4:
- Add an helper to return the VM state
- Check drmm_mutex_init() return code
- Remove the VM from the AS reclaim list when panthor_vm_active() is
  called
- Count the number of active VM users instead of considering there's
  at most one user (several scheduling groups can point to the same
  vM)
- Pre-allocate a VMA object for unmap operations (unmaps can trigger
  a sm_step_remap() call)
- Check vm->root_page_table instead of vm->pgtbl_ops to detect if
  the io-pgtable is trying to allocate the root page table
- Don't memset() the va_node in panthor_vm_alloc_va(), make it a
  caller requirement
- Fix the kernel doc in a few places
- Drop the panthor_vm::base offset constraint and modify
  panthor_vm_put() to explicitly check for a NULL value
- Fix unbalanced vm_bo refcount in panthor_gpuva_sm_step_remap()
- Drop stale comments about the shared_bos list
- Patch mmu_features::va_bits on 32-bit builds to reflect the
  io_pgtable limitation and let the UMD know about it

v3:
- Add acks for the MIT/GPL2 relicensing
- Propagate MMU faults to the scheduler
- Move pages pinning/unpinning out of the dma_signalling path
- Fix 32-bit support
- Rework the user/kernel VA range calculation
- Make the auto-VA range explicit (auto-VA range doesn't cover the full
  kernel-VA range on the MCU VM)
- Let callers of panthor_vm_alloc_va() allocate the drm_mm_node
  (embedded in panthor_kernel_bo now)
- Adjust things to match the latest drm_gpuvm changes (extobj tracking,
  resv prep and more)
- Drop the per-AS lock and use slots_lock (fixes a race on vm->as.id)
- Set as.id to -1 when reusing an address space from the LRU list
- Drop misleading comment about page faults
- Remove check for irq being assigned in panthor_mmu_unplug()

Co-developed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Steven Price <steven.price@arm.com> # MIT+GPL2 relicensing,Arm
Acked-by: Grant Likely <grant.likely@linaro.org> # MIT+GPL2 relicensing,Linaro
Acked-by: Boris Brezillon <boris.brezillon@collabora.com> # MIT+GPL2 relicensing,Collabora
Reviewed-by: Steven Price <steven.price@arm.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229162230.2634044-8-boris.brezillon@collabora.com

drm/panthor: Add the devfreq logical block

Every thing related to devfreq in placed in panthor_devfreq.c, and
helpers that can be called by other logical blocks are exposed through
panthor_devfreq.h.

This implementation is loosely based on the panfrost implementation,
the only difference being that we don't count device users, because
the idle/active state will be managed by the scheduler logic.

v6:
- Add Maxime's and Heiko's acks
- Keep header inclusion alphabetically ordered

v4:
- Add Clément's A-b for the relicensing

v3:
- Add acks for the MIT/GPL2 relicensing

v2:
- Added in v2

Cc: Clément Péron <peron.clem@gmail.com> # MIT+GPL2 relicensing
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Steven Price <steven.price@arm.com> # MIT+GPL2 relicensing,Arm
Acked-by: Grant Likely <grant.likely@linaro.org> # MIT+GPL2 relicensing,Linaro
Acked-by: Boris Brezillon <boris.brezillon@collabora.com> # MIT+GPL2 relicensing,Collabora
Acked-by: Clément Péron <peron.clem@gmail.com> # MIT+GPL2 relicensing
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229162230.2634044-7-boris.brezillon@collabora.com

drm/panthor: Add GEM logical block

Anything relating to GEM object management is placed here. Nothing
particularly interesting here, given the implementation is based on
drm_gem_shmem_object, which is doing most of the work.

v6:
- Add Maxime's and Heiko's acks
- Return a page-aligned BO size to userspace when creating a BO
- Keep header inclusion alphabetically ordered

v5:
- Add Liviu's and Steve's R-b

v4:
- Force kernel BOs to be GPU mapped
- Make panthor_kernel_bo_destroy() robust against ERR/NULL BO pointers
  to simplify the call sites

v3:
- Add acks for the MIT/GPL2 relicensing
- Provide a panthor_kernel_bo abstraction for buffer objects managed by
  the kernel (will replace panthor_fw_mem and be used everywhere we were
  using panthor_gem_create_and_map() before)
- Adjust things to match drm_gpuvm changes
- Change return of panthor_gem_create_with_handle() to int

Co-developed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Steven Price <steven.price@arm.com> # MIT+GPL2 relicensing,Arm
Acked-by: Grant Likely <grant.likely@linaro.org> # MIT+GPL2 relicensing,Linaro
Acked-by: Boris Brezillon <boris.brezillon@collabora.com> # MIT+GPL2 relicensing,Collabora
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229162230.2634044-6-boris.brezillon@collabora.com

drm/panthor: Add the GPU logical block

Handles everything that's not related to the FW, the MMU or the
scheduler. This is the block dealing with the GPU property retrieval,
the GPU block power on/off logic, and some global operations, like
global cache flushing.

v6:
- Add Maxime's and Heiko's acks

v5:
- Fix GPU_MODEL() kernel doc
- Fix test in panthor_gpu_block_power_off()
- Add Steve's R-b

v4:
- Expose CORE_FEATURES through DEV_QUERY

v3:
- Add acks for the MIT/GPL2 relicensing
- Use macros to extract GPU ID info
- Make sure we reset clear pending_reqs bits when wait_event_timeout()
  times out but the corresponding bit is cleared in GPU_INT_RAWSTAT
  (can happen if the IRQ is masked or HW takes to long to call the IRQ
  handler)
- GPU_MODEL now takes separate arch and product majors to be more
  readable.
- Drop GPU_IRQ_MCU_STATUS_CHANGED from interrupt mask.
- Handle GPU_IRQ_PROTM_FAULT correctly (don't output registers that are
  not updated for protected interrupts).
- Minor code tidy ups

Cc: Alexey Sheplyakov <asheplyakov@basealt.ru> # MIT+GPL2 relicensing
Co-developed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Steven Price <steven.price@arm.com> # MIT+GPL2 relicensing,Arm
Acked-by: Grant Likely <grant.likely@linaro.org> # MIT+GPL2 relicensing,Linaro
Acked-by: Boris Brezillon <boris.brezillon@collabora.com> # MIT+GPL2 relicensing,Collabora
Reviewed-by: Steven Price <steven.price@arm.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229162230.2634044-5-boris.brezillon@collabora.com

drm/panthor: Add the device logical block

The panthor driver is designed in a modular way, where each logical
block is dealing with a specific HW-block or software feature. In order
for those blocks to communicate with each other, we need a central
panthor_device collecting all the blocks, and exposing some common
features, like interrupt handling, power management, reset, ...

This what this panthor_device logical block is about.

v6:
- Add Maxime's and Heiko's acks
- Keep header inclusion alphabetically ordered

v5:
- Suspend the MMU/GPU blocks if panthor_fw_resume() fails in
  panthor_device_resume()
- Move the pm_runtime_use_autosuspend() call before drm_dev_register()
- Add Liviu's R-b

v4:
- Check drmm_mutex_init() return code
- Fix panthor_device_reset_work() out path
- Fix the race in the unplug logic
- Fix typos
- Unplug blocks when something fails in panthor_device_init()
- Add Steve's R-b

v3:
- Add acks for the MIT+GPL2 relicensing
- Fix 32-bit support
- Shorten the sections protected by panthor_device::pm::mmio_lock to fix
  lock ordering issues.
- Rename panthor_device::pm::lock into panthor_device::pm::mmio_lock to
  better reflect what this lock is protecting
- Use dev_err_probe()
- Make sure we call drm_dev_exit() when something fails half-way in
  panthor_device_reset_work()
- Replace CSF_GPU_LATEST_FLUSH_ID_DEFAULT with a constant '1' and a
  comment to explain. Also remove setting the dummy flush ID on suspend.
- Remove drm_WARN_ON() in panthor_exception_name()
- Check pirq->suspended in panthor_xxx_irq_raw_handler()

Co-developed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Steven Price <steven.price@arm.com> # MIT+GPL2 relicensing,Arm
Acked-by: Grant Likely <grant.likely@linaro.org> # MIT+GPL2 relicensing,Linaro
Acked-by: Boris Brezillon <boris.brezillon@collabora.com> # MIT+GPL2 relicensing,Collabora
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229162230.2634044-4-boris.brezillon@collabora.com

drm/panthor: Add GPU register definitions

Those are the registers directly accessible through the MMIO range.

FW registers are exposed in panthor_fw.h.

v6:
- Add Maxime's and Heiko's acks

v4:
- Add the CORE_FEATURES register (needed for GPU variants)
- Add Steve's R-b

v3:
- Add macros to extract GPU ID info
- Formatting changes
- Remove AS_TRANSCFG_ADRMODE_LEGACY - it doesn't exist post-CSF
- Remove CSF_GPU_LATEST_FLUSH_ID_DEFAULT
- Add GPU_L2_FEATURES_LINE_SIZE for extracting the GPU cache line size

Co-developed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Steven Price <steven.price@arm.com> # MIT+GPL2 relicensing,Arm
Acked-by: Grant Likely <grant.likely@linaro.org> # MIT+GPL2 relicensing,Linaro
Acked-by: Boris Brezillon <boris.brezillon@collabora.com> # MIT+GPL2 relicensing,Collabora
Reviewed-by: Steven Price <steven.price@arm.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229162230.2634044-3-boris.brezillon@collabora.com

drm/panthor: Add uAPI

Panthor follows the lead of other recently submitted drivers with
ioctls allowing us to support modern Vulkan features, like sparse memory
binding:

- Pretty standard GEM management ioctls (BO_CREATE and BO_MMAP_OFFSET),
  with the 'exclusive-VM' bit to speed-up BO reservation on job submission
- VM management ioctls (VM_CREATE, VM_DESTROY and VM_BIND). The VM_BIND
  ioctl is loosely based on the Xe model, and can handle both
  asynchronous and synchronous requests
- GPU execution context creation/destruction, tiler heap context creation
  and job submission. Those ioctls reflect how the hardware/scheduler
  works and are thus driver specific.

We also have a way to expose IO regions, such that the usermode driver
can directly access specific/well-isolate registers, like the
LATEST_FLUSH register used to implement cache-flush reduction.

This uAPI intentionally keeps usermode queues out of the scope, which
explains why doorbell registers and command stream ring-buffers are not
directly exposed to userspace.

v6:
- Add Maxime's and Heiko's acks

v5:
- Fix typo
- Add Liviu's R-b

v4:
- Add a VM_GET_STATE ioctl
- Fix doc
- Expose the CORE_FEATURES register so we can deal with variants in the
  UMD
- Add Steve's R-b

v3:
- Add the concept of sync-only VM operation
- Fix support for 32-bit userspace
- Rework drm_panthor_vm_create to pass the user VA size instead of
  the kernel VA size (suggested by Robin Murphy)
- Typo fixes
- Explicitly cast enums with top bit set to avoid compiler warnings in
  -pedantic mode.
- Drop property core_group_count as it can be easily calculated by the
  number of bits set in l2_present.

Co-developed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229162230.2634044-2-boris.brezillon@collabora.com

Merge tag 'drm-misc-next-2024-02-29' of https://anongit.freedesktop.org/git/drm/drm-misc into drm-next

drm-misc-next for v6.9:

UAPI Changes:

Cross-subsystem Changes:

backlight:
- corgi: include backlight header

fbdev:
- Cleanup includes in public header file
- fbtft: Include backlight header

Core Changes:

edid:
- Remove built-in EDID data

dp:
- Avoid AUX transfers on powered-down displays
- Add VSC SDP helpers

modesetting:
- Add sanity checks for polling
- Cleanups

scheduler:
- Cleanups

tests:
- Add helpers for mode-setting tests

Driver Changes:

i915:
- Use shared VSC SDP helper

mgag200:
- Work around PCI write bursts

mxsfb:
- Use managed mode config

nouveau:
- Include backlight header where necessary

qiac:
- Cleanups

sun4:
- HDMI: updates to atomic mode setting

tegra:
- Fix GEM refounting in error paths

tidss:
- Fix multi display
- Fix initial Z position

v3d:
- Support display MMU page size

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229084806.GA21616@localhost.localdomain

drm/amdgpu: remove misleading amdgpu_pmops_runtime_idle() comment

After 4020c2280233 ("drm/amdgpu: don't runtime suspend if there are
displays attached (v3)"), "ret" is unconditionally set later before being
used, so there's point in initializing it and the associated comment is no
longer meaningful.

Remove the comment and the unnecessary initialization.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Reapply "Revert drm/amd/display: Enable Freesync Video Mode by default"

This reverts commit 11b92df8a2f7f4605ccc764ce6ae4a72760674df.

This conflicts with how compositors want to handle VRR.  Now
that compositors actually handle VRR, we probably don't need
freesync video.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/2985
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Revert "drm/amd: Remove freesync video mode amdgpu parameter"

This reverts commit e94e787e37b99645e7c02d20d0a1ba0f8a18a82a.

This conflicts with how compositors want to handle VRR.  Now
that compositors actually handle VRR, we probably don't need
freesync video.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/2985
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: check dc_link before dereferencing

drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:6683 amdgpu_dm_connector_funcs_force()
warn: variable dereferenced before check 'dc_link' (see line 6663)

Fixes: 967176179215 ("drm/amd/display: fix null-pointer dereference on edid reading")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: add deferred error check for UMC v12 address query

Both RAS UE and deferred errors need page retirement.

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/swsmu: modify the gfx activity scaling

Add an if condition for gfx activity because the scaling has been changed after smu fw version 5d4600.
And remove a warning log.

Signed-off-by: Li Ma <li.ma@amd.com>
Reviewed-by: Yifan Zhang <yifan1.zhang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Merge tag 'drm-intel-gt-next-2024-02-28' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

Driver Changes:

Fixes:

- Add some boring kerneldoc (Tvrtko Ursulin)
- Check before removing mm notifier (Nirmoy

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Zd889Wvu/ZKZSK4/@tursulin-desk

drm/mediatek: Fix a null pointer crash in mtk_drm_crtc_finish_page_flip

It's possible that mtk_crtc->event is NULL in
mtk_drm_crtc_finish_page_flip().

pending_needs_vblank value is set by mtk_crtc->event, but in
mtk_drm_crtc_atomic_flush(), it's is not guarded by the same
lock in mtk_drm_finish_page_flip(), thus a race condition happens.

Consider the following case:

CPU1                              CPU2
step 1:
mtk_drm_crtc_atomic_begin()
mtk_crtc->event is not null,
                                  step 1:
                                  mtk_drm_crtc_atomic_flush:
                                  mtk_drm_crtc_update_config(
                                      !!mtk_crtc->event)
step 2:
mtk_crtc_ddp_irq ->
mtk_drm_finish_page_flip:
lock
mtk_crtc->event set to null,
pending_needs_vblank set to false
unlock
                                  pending_needs_vblank set to true,

                                  step 2:
                                  mtk_crtc_ddp_irq ->
                                  mtk_drm_finish_page_flip called again,
                                  pending_needs_vblank is still true
                                  //null pointer

Instead of guarding the entire mtk_drm_crtc_atomic_flush(), it's more
efficient to just check if mtk_crtc->event is null before use.

Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20240223212404.3709690-1-hsinyi@chromium.org/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>