drm/omap: Allow build with COMPILE_TEST=y

Allow omapdrm to be built with COMPILE_TEST=y for greater
coverage. Builds fine on x86/x86_64 at least.

Cc: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240408170426.9285-16-ville.syrjala@linux.intel.com
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>

drm/omap: Open code phys_to_page()

phys_to_page() is not available on most architectures.
Just open code it like msm does. Allows COMPILE_TEST=y
builds of omapdrm on other architectures.

Cc: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240408170426.9285-15-ville.syrjala@linux.intel.com
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>

drm/hisilicon/kirin: Allow build with COMPILE_TEST=y

Allow kirin to be built with COMPILE_TEST=y for greater
coverage. Builds fine on x86/x86_64 at least.

Cc: Xinliang Liu <xinliang.liu@linaro.org>
Cc: Tian Tao <tiantao6@hisilicon.com>
Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Yongqin Liu <yongqin.liu@linaro.org>
Cc: John Stultz <jstultz@google.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240408170426.9285-12-ville.syrjala@linux.intel.com
Acked-by: John Stultz <jstultz@google.com>

drm/hisilicon/kirin: Fix MASK(32) on 32bit architectures

BIT(32) is illegal when sizeof(long)==4. Use BIT_ULL(32)
instead.

Cc: Xinliang Liu <xinliang.liu@linaro.org>
Cc: Tian Tao <tiantao6@hisilicon.com>
Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Yongqin Liu <yongqin.liu@linaro.org>
Cc: John Stultz <jstultz@google.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240408170426.9285-11-ville.syrjala@linux.intel.com
Acked-by: John Stultz <jstultz@google.com>

drm/hisilicon/kirin: Fix 64bit divisions

Use the appropriate 64bit division helpers to make the code
build on 32bit architectures.

Cc: Xinliang Liu <xinliang.liu@linaro.org>
Cc: Tian Tao <tiantao6@hisilicon.com>
Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Yongqin Liu <yongqin.liu@linaro.org>
Cc: John Stultz <jstultz@google.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240408170426.9285-10-ville.syrjala@linux.intel.com
Acked-by: John Stultz <jstultz@google.com>

drm/hisilicon/kirin: Include linux/io.h for readl()/writel()

Include linux/io.h for readl()/writel().

When built on x86_64 w/ COMPILE_TEST=y:
../drivers/gpu/drm/hisilicon/kirin/dw_dsi_reg.h:93:16: error: implicit declaration of function ‘readl’ [-Werror=implicit-function-declaration]
   93 |         orig = readl(addr);
      |                ^~~~~
../drivers/gpu/drm/hisilicon/kirin/dw_dsi_reg.h:96:9: error: implicit declaration of function ‘writel’ [-Werror=implicit-function-declaration]
   96 |         writel(tmp, addr);
      |         ^~~~~~

Cc: Xinliang Liu <xinliang.liu@linaro.org>
Cc: Tian Tao <tiantao6@hisilicon.com>
Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Yongqin Liu <yongqin.liu@linaro.org>
Cc: John Stultz <jstultz@google.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240408170426.9285-9-ville.syrjala@linux.intel.com
Acked-by: John Stultz <jstultz@google.com>

drm/amdgpu: Use drm_crtc_vblank_crtc()

Replace the open coded drm_crtc_vblank_crtc() with the real
thing.

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com>
Cc: amd-gfx@lists.freedesktop.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240408190611.24914-2-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

drm/drm-bridge: Drop conditionals around of_node pointers

Having conditional around the of_node pointer of the drm_bridge structure
is not necessary, since drm_bridge structure always has the of_node as its
member.

Let's drop the conditional to get a better looks, please also note that
this is following the already accepted commitments. see commit d8dfccde2709
("drm/bridge: Drop conditionals around of_node pointers") for reference.

Signed-off-by: Sui Jingfeng <sui.jingfeng@linux.dev>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240507180001.1358816-1-sui.jingfeng@linux.dev

drm: deprecate driver date

The driver date serves no useful purpose, because it's hardly ever
updated. The information is misleading at best.

As described in Documentation/gpu/drm-internals.rst:

  The driver date, formatted as YYYYMMDD, is meant to identify the date
  of the latest modification to the driver. However, as most drivers
  fail to update it, its value is mostly useless. The DRM core prints it
  to the kernel log at initialization time and passes it to userspace
  through the DRM_IOCTL_VERSION ioctl.

Stop printing the driver date at init, and start returning the empty
string "" as driver date through the DRM_IOCTL_VERSION ioctl.

The driver date initialization in drivers and the struct drm_driver date
member can be removed in follow-up.

Reviewed-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Acked-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240429164336.1406480-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/uapi: Move drm_color_ctm_3x4 out from drm_mode.h

drm_color_ctm_3x4 is some undocumented amgdpu private
uapi and thus has no business being in drm_mode.h.
At least move it to some amdgpu specific header, albeit
with the wrong namespace as maybe something somewhere
is using this already?

Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Alex Deucher <alexander.deucher@amd.com>
Fixes: 6872a189be50 ("drm/amd/display: Add 3x4 CTM support for plane CTM")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240422085857.17651-1-ville.syrjala@linux.intel.com
Reviewed-by: Harry Wentland <harry.wentland@amd.com>

drm/panel-edp: Add ID for KD KD116N09-30NH-A016

As evidenced by in-field reports, this panel shipped on pompom but we
never added the ID and thus we're stuck w/ conservative timings. The
panel was part of early patches but somehow got left off in the
end. :( Add it in now.

For future reference, EDID from this panel is:
00ffffffffffff002c82121200000000
321e0104951a0e780ae511965e55932c
19505400000001010101010101010101
010101010101a41f5686500084302820
55000090100000180000000000000000
00000000000000000000000000000000
000000000000000000000000000000fe
004b443131364e3039333041313600f6

We use the ASCII string from decoding the EDID ("KD116N0930A16") as
the panel name.

Reviewed-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240502164746.1.Ia32fc630e5ba41b3fdd3666d9e343568e03c4f3a@changeid

drm/gma500: Fix spelling mistake "patter" -> "pattern"

There is a spelling mistake in a DRM_DEBUG_KMS message. Fix it.

Reviewed-by: Sui Jingfeng <sui.jingfeng@linux.dev>
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240314163511.2372458-1-colin.i.king@gmail.com

drm/fbdev: Clean up fbdev documentation

Rewrite some docs that are not up-to-date any longer. Remove the TODO
item for fbdev-generic conversion, as the helper has been replaced. Make
documentation for DMA, SHMEM and TTM emulation available.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-44-tzimmermann@suse.de

drm/fbdev-generic: Convert to fbdev-ttm

Only TTM-based drivers use fbdev-generic. Rename it to fbdev-ttm and
change the symbol infix from _generic_ to _ttm_. Link the source file
into TTM helpers, so that it is only build if TTM-based drivers have
been selected. Select DRM_TTM_HELPER for loongson.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-43-tzimmermann@suse.de

drm/tiny/st7735r: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by st7735r. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Lechner <david@lechnology.com>
Acked-by: David Lechner <david@lechnology.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-42-tzimmermann@suse.de

drm/tiny/st7586: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by st7586. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Lechner <david@lechnology.com>
Acked-by: David Lechner <david@lechnology.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-41-tzimmermann@suse.de

drm/tiny/repaper: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by repaper. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-40-tzimmermann@suse.de

drm/tiny/panel-mipi-dbi: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by panel-mipi-dbi. Avoids the
overhead of fbdev-generic's additional shadow buffering. No functional
changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-39-tzimmermann@suse.de

drm/tiny/mi0283qt: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by mi0283qt. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-38-tzimmermann@suse.de

drm/tiny/ili9486: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by ili9486. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-37-tzimmermann@suse.de

drm/tiny/ili9341: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by ili9341. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Kamlesh Gurudasani <kamlesh.gurudasani@gmail.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-36-tzimmermann@suse.de

drm/tiny/ili9225: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by ili9225. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Lechner <david@lechnology.com>
Acked-by: David Lechner <david@lechnology.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-35-tzimmermann@suse.de

drm/tiny/ili9163: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by ili9163. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-34-tzimmermann@suse.de

drm/tiny/hx8357d: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by hx8357d. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-33-tzimmermann@suse.de

drm/rockchip: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by rockchip. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Sandy Huang <hjc@rock-chips.com>
Cc: "Heiko Stübner" <heiko@sntech.de>
Cc: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-32-tzimmermann@suse.de

drm/renesas/shmobile: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by shmobile. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-31-tzimmermann@suse.de

drm/renesas/rz-du: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by rz-du. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Biju Das <biju.das.jz@bp.renesas.com>
Tested-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-30-tzimmermann@suse.de

drm/renesas/rcar-du: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by rcar-du. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-29-tzimmermann@suse.de

drm/panel/panel-ilitek-9341: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by panel-ilitek-9341. Avoids
the overhead of fbdev-generic's additional shadow buffering. No
functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Jessica Zhang <quic_jesszhan@quicinc.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-28-tzimmermann@suse.de

drm/mediatek: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by ingenic. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-27-tzimmermann@suse.de

drm/ingenic: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by ingenic. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Paul Cercueil <paul@crapouillou.net>
Acked-by: Paul Cercueil <paul@crapouillou.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-26-tzimmermann@suse.de

drm/imx/lcdc: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by lcdc. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-25-tzimmermann@suse.de

drm/hisilicon/kirin: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by kirin. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Xinliang Liu <xinliang.liu@linaro.org>
Cc: Tian Tao <tiantao6@hisilicon.com>
Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Yongqin Liu <yongqin.liu@linaro.org>
Cc: John Stultz <jstultz@google.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-24-tzimmermann@suse.de

drm/arm/komeda: Use fbdev-dma

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by komeda. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-23-tzimmermann@suse.de

drm/fbdev-dma: Implement damage handling and deferred I/O

Add support for damage handling and deferred I/O to fbdev-dma. This
enables fbdev-dma to support all DMA-memory-based DRM drivers, even
such with a dirty callback in their framebuffers.

The patch adds the code for deferred I/O and also sets a dedicated
helper for struct fb_ops.fb_mmap that support coherent mappings.

v3:
- init fb_ops with FB_GEN_DEFAULT_DEFERRED_DMAMEM_OPS() (Javier)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-22-tzimmermann@suse.de

drm/vkms: Use fbdev-shmem

Implement fbdev emulation with fbdev-shmem. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Cc: Melissa Wen <melissa.srw@gmail.com>
Cc: "Maíra Canal" <mairacanal@riseup.net>
Cc: Haneen Mohammed <hamohammed.sa@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Maíra Canal <mcanal@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-21-tzimmermann@suse.de

drm/virtio: Use fbdev-shmem

Implement fbdev emulation with fbdev-shmem. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Gurchetan Singh <gurchetansingh@chromium.org>
Cc: Chia-I Wu <olvaffe@gmail.com>
Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-20-tzimmermann@suse.de

drm/udl: Use fbdev-shmem

Implement fbdev emulation with fbdev-shmem. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Sean Paul <sean@poorly.run>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-19-tzimmermann@suse.de

drm/tiny/simpledrm: Use fbdev-shmem

Implement fbdev emulation with fbdev-shmem. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-18-tzimmermann@suse.de

drm/tiny/ofdrm: Use fbdev-shmem

Implement fbdev emulation with fbdev-shmem. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-17-tzimmermann@suse.de

drm/tiny/gm12u320: Use fbdev-shmem

Implement fbdev emulation with fbdev-shmem. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-16-tzimmermann@suse.de

drm/tiny/cirrus: Use fbdev-shmem

Implement fbdev emulation with fbdev-shmem. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-15-tzimmermann@suse.de

drm/solomon: Use fbdev-shmem

Implement fbdev emulation with fbdev-shmem. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-14-tzimmermann@suse.de

drm/mgag200: Use fbdev-shmem

Implement fbdev emulation with fbdev-shmem. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Jocelyn Falempe <jfalempe@redhat.com>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-13-tzimmermann@suse.de

drm/hyperv: Use fbdev-shmem

Implement fbdev emulation with fbdev-shmem. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Deepak Rawat <drawat.floss@gmail.com>
Reviewed-by: Deepak Rawat <drawat.floss@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-12-tzimmermann@suse.de

drm/gud: Use fbdev-shmem

Implement fbdev emulation with fbdev-shmem. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-11-tzimmermann@suse.de

drm/ast: Use fbdev-shmem

Implement fbdev emulation with fbdev-shmem. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Jocelyn Falempe <jfalempe@redhat.com>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-10-tzimmermann@suse.de

drm/fbdev: Add fbdev-shmem

Add an fbdev emulation for SHMEM-based memory managers. The code is
similar to fbdev-generic, but does not require an additional shadow
buffer for mmap(). Fbdev-shmem operates directly on the buffer object's
SHMEM pages. Fbdev's deferred-I/O mechanism updates the hardware state
on write operations.

The memory pages of GEM SHMEM cannot be detected by fbdefio. Therefore
fbdev-shmem implements the .get_page() hook in struct fb_deferred_io.
The fbdefio helpers call this hook to retrieve the page directly from
fbdev-shmem instead of trying to detect it internally.

v3:
- clarify on get_page mechanism in commit description (Javier)
v2:
- use drm_driver_legacy_fb_format() (Geert)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-9-tzimmermann@suse.de

fbdev/deferred-io: Provide get_page hook in struct fb_deferred_io

Add a callback for drivers to provide framebuffer pages to fbdev's
deferred-I/O helpers. Implementations need to acquire a reference on
the page before returning it. Returning NULL generates a SIGBUS
signal.

This will be useful for DRM's fbdev emulation with GEM-shmem buffer
objects.

v2:
- fix typo in commit message (Javier)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-8-tzimmermann@suse.de

fbdev/deferred-io: Always call get_page() for framebuffer pages

Unconditionally call get_page() after looking up a page from the
framebuffer memory. Guarantees that we always hold a reference.

This change also refactors the code such that it can support a
driver-supplied get_page helper. This will be useful for DRM's
fbdev emulation.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-7-tzimmermann@suse.de

fbdev/deferred-io: Test smem_start for I/O memory

Test smem_start before looking up pages from its value. Return
NULL if it is unset. This will result in a SIGBUS signal.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-6-tzimmermann@suse.de

fbdev/deferred-io: Test screen_buffer for vmalloc'ed memory

Framebuffers in virtual memory are available via screen_buffer. Use
it instead of screen_base and avoid the type casting.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-5-tzimmermann@suse.de

fbdev/deferred-io: Clean up pageref on lastclose

Clean up the pageref state as part of the lastclose helper. This
only requires to clear the page's mapping field. The pageref and
page can stay in place for the next opened instance of the frame-
buffer file.

With the change in the clean-up logic, there's no further need
to look up pages during the lastclose cleanup. The code instead
uses the existing pagerefs in its look-up table. It also avoids
using smem_len, which some driver might not set correctly.

v2:
- fix typos in commit message (Javier)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-4-tzimmermann@suse.de

fbdev/deferred-io: Move pageref setup into separate helper

Set up struct fb_deferred_io_pageref in the new helper function
fb_deferred_io_pageref_lookup(), which runs when the pageref is first
taken. Remove the setup code from the rest of the code.

At first, the code allocates the memory of all pageref structs. The
setup of the various fields happens when the pageref is required.

v2:
- fix typo in commit message (Javier)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-3-tzimmermann@suse.de

drm/fbdev-generic: Do not set physical framebuffer address

Framebuffer memory is allocated via vzalloc() from non-contiguous
physical pages. The physical framebuffer start address is therefore
meaningless. Do not set it.

The value is not used within the kernel and only exported to userspace
on dedicated ARM configs. No functional change is expected.

v2:
- refer to vzalloc() in commit message (Javier)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: a5b44c4adb16 ("drm/fbdev-generic: Always use shadow buffering")
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Zack Rusin <zackr@vmware.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: <stable@vger.kernel.org> # v6.4+
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Zack Rusin <zack.rusin@broadcom.com>
Reviewed-by: Sui Jingfeng <sui.jingfeng@linux.dev>
Tested-by: Sui Jingfeng <sui.jingfeng@linux.dev>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-2-tzimmermann@suse.de

Merge drm/drm-next into drm-misc-next

Backmerging to get DRM fixes from v6.9-rc6.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

drm/panel: ili9341: Remove a superfluous else after return

Because the else clause after the return clause is not useful, remove it
to get a better look.

Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Signed-off-by: Sui Jingfeng <sui.jingfeng@linux.dev>
Link: https://lore.kernel.org/r/20240501052402.806006-1-sui.jingfeng@linux.dev
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240501052402.806006-1-sui.jingfeng@linux.dev

lib/fonts: Allow to select fonts for drm_panic

drm_panic has been introduced recently, and uses the same fonts as
FRAMEBUFFER_CONSOLE.

Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419132243.154466-1-jfalempe@redhat.com

drm/debugfs: Drop conditionals around of_node pointers

Having conditional around the of_node pointer of the drm_bridge structure
is not necessary anymore, since drm_bridge structure always has the of_node
member since the commit d8dfccde2709 ("drm/bridge: Drop conditionals around
of_node pointers").

So drop the conditional, please also note that this patch is following the
convention used by driver core, see commit c9e358dfc4a8 ("driver-core:
remove conditionals around devicetree pointers").

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Sui Jingfeng <sui.jingfeng@linux.dev>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240501051323.805076-1-sui.jingfeng@linux.dev

drm/vmwgfx: Remove duplicate vmwgfx_vkms.h header

./drivers/gpu/drm/vmwgfx/vmwgfx_vkms.c: vmwgfx_vkms.h is included more than once.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=8772
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240417012917.66046-1-jiapeng.chong@linux.alibaba.com

drm/fb_dma: Add checks in drm_fb_dma_get_scanout_buffer()

plane->state and plane->state->fb can be NULL, so add a check before
dereferencing them.
Found by testing with the imx driver.

Fixes: 879b3b6511fe ("drm/fb_dma: Add generic get_scanout_buffer() for drm_panic")
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240426121121.241366-1-jfalempe@redhat.com

nouveau: Add missing break statement

Add the missing break statement that causes the following build error

  CC [M]  drivers/gpu/drm/i915/display/intel_display_device.o
../drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c: In function ‘build_registry’:
../drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c:1266:3: error: label at end of compound statement
1266 |   default:
      |   ^~~~~~~
  CC [M]  drivers/gpu/drm/amd/amdgpu/gfx_v10_0.o
  HDRTEST drivers/gpu/drm/xe/compat-i915-headers/i915_reg.h
  CC [M]  drivers/gpu/drm/amd/amdgpu/imu_v11_0.o
make[7]: *** [../scripts/Makefile.build:244: drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.o] Error 1
make[7]: *** Waiting for unfinished jobs....

Fixes: b58a0bc904ff ("nouveau: add command-line GSP-RM registry support")
Closes: https://lore.kernel.org/all/913052ca6c0988db1bab293cfae38529251b4594.camel@nvidia.com/T/#m3c9acebac754f2e74a85b76c858c093bb1aacaf0
Closes: https://lore.kernel.org/all/CA+G9fYu7Ug0K8h9QJT0WbtWh_LL9Juc+VC0WMU_Z_vSSPDNymg@mail.gmail.com/
Tested-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240430131840.742924-1-chaitanya.kumar.borah@intel.com

Merge tag 'amd-drm-next-6.10-2024-04-26' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-next-6.10-2024-04-26:

amdgpu:
- Misc code cleanups and refactors
- Support setting reset method at runtime
- Report OD status
- SMU 14.0.1 fixes
- SDMA 4.4.2 fixes
- VPE fixes
- MES fixes
- Update BO eviction priorities
- UMSCH fixes
- Reset fixes
- Freesync fixes
- GFXIP 9.4.3 fixes
- SDMA 5.2 fixes
- MES UAF fix
- RAS updates
- Devcoredump updates for dumping IP state
- DSC fixes
- JPEG fix
- Fix VRAM memory accounting
- VCN 5.0 fixes
- MES fixes
- UMC 12.0 updates
- Modify contiguous flags handling
- Initial support for mapping kernel queues via MES

amdkfd:
- Fix rescheduling of restore worker
- VRAM accounting for SVM migrations
- mGPU fix
- Enable SQ watchpoint for gfx10

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240426221245.1613332-1-alexander.deucher@amd.com

Merge tag 'drm-intel-gt-next-2024-04-26' of https://anongit.freedesktop.org/git/drm/drm-intel into drm-next

UAPI Changes:

- drm/i915/guc: Use context hints for GT frequency

    Allow user to provide a low latency context hint. When set, KMD
    sends a hint to GuC which results in special handling for this
    context. SLPC will ramp the GT frequency aggressively every time
    it switches to this context. The down freq threshold will also be
    lower so GuC will ramp down the GT freq for this context more slowly.
    We also disable waitboost for this context as that will interfere with
    the strategy.

    We need to enable the use of SLPC Compute strategy during init, but
    it will apply only to contexts that set this bit during context
    creation.

    Userland can check whether this feature is supported using a new param-
    I915_PARAM_HAS_CONTEXT_FREQ_HINT. This flag is true for all guc submission
    enabled platforms as they use SLPC for frequency management.

    The Mesa usage model for this flag is here -
    https://gitlab.freedesktop.org/sushmave/mesa/-/commits/compute_hint

- drm/i915/gt: Enable only one CCS for compute workload

    Enable only one CCS engine by default with all the compute sices
    allocated to it.

    While generating the list of UABI engines to be exposed to the
    user, exclude any additional CCS engines beyond the first
    instance

    ***

    NOTE: This W/A will make all DG2 SKUs appear like single CCS SKUs by
    default to mitigate a hardware bug. All the EUs will still remain
    usable, and all the userspace drivers have been confirmed to be able
    to dynamically detect the change in number of CCS engines and adjust.

    For the smaller percent of applications that get perf benefit from
    letting the userspace driver dispatch across all 4 CCS engines we will
    be introducing a sysfs control as a later patch to choose 4 CCS each
    with 25% EUs (or 50% if 2 CCS).

    NOTE: A regression has been reported at

    https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/10895

    However Andi has been triaging the issue and we're closing in a fix
    to the gap in the W/A implementation:

    https://lists.freedesktop.org/archives/intel-gfx/2024-April/348747.html

Driver Changes:

- Add new and fix to existing workarounds: Wa_14018575942 (MTL),
  Wa_16019325821 (Gen12.70), Wa_14019159160 (MTL), Wa_16015675438,
  Wa_14020495402 (Gen12.70) (Tejas, John, Lucas)
- Fix UAF on destroy against retire race and remove two earlier
  partial fixes (Janusz)
- Limit the reserved VM space to only the platforms that need it (Andi)
- Reset queue_priority_hint on parking for execlist platforms (Chris)
- Fix gt reset with GuC submission is disabled (Nirmoy)
- Correct capture of EIR register on hang (John)

- Remove usage of the deprecated ida_simple_xx() API
- Refactor confusing __intel_gt_reset() (Nirmoy)
- Fix the fix for GuC reset lock confusion (John)
- Simplify/extend platform check for Wa_14018913170 (John)
- Replace dev_priv with i915 (Andi)
- Add and use gt_to_guc() wrapper (Andi)
- Remove bogus null check (Rodrigo, Dan)

. Selftest improvements (Janusz, Nirmoy, Daniele)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZitVBTvZmityDi7D@jlahtine-mobl.ger.corp.intel.com

Merge v6.9-rc6 into drm-next

Thomas needs the defio fixes, Maíra needs the vkms fixes and Joonas
has some fun with i915-gem conflicts.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drm: ci: fix the xfails for apq8016

After IGT migrating to dynamic sub-tests, the pipe prefixes
in the expected fails list are incorrect. Lets drop those
to accurately match the expected fails.

In addition, update the xfails list to match the current passing
list. This should have ideally failed in the CI run because some
tests were marked as fail even though they passed but due to the
mismatch in test names, the matching didn't correctly work and was
resulting in those failures not being seen.

Here is the passing pipeline for apq8016 with this change:

https://gitlab.freedesktop.org/drm/msm/-/jobs/57050562

Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Helen Koike <helen.koike@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240401204859.24223-1-quic_abhinavk@quicinc.com

Revert "drm/bridge: ti-sn65dsi83: Fix enable error path"

This reverts commit 8a91b29f1f50ce7742cdbe5cf11d17f128511f3f.

The regulator_disable() added by the original commit solves one kind of
regulator imbalance but adds another one as it allows the regulator to be
disabled one more time than it is enabled in the following scenario:

 1. Start video pipeline -> sn65dsi83_atomic_pre_enable -> regulator_enable
 2. PLL lock fails -> regulator_disable
 3. Stop video pipeline -> sn65dsi83_atomic_disable -> regulator_disable

The reason is clear from the code flow, which looks like this (after
removing unrelated code):

  static void sn65dsi83_atomic_pre_enable()
  {
      regulator_enable(ctx->vcc);

      if (PLL failed locking) {
          regulator_disable(ctx->vcc);  <---- added by patch being reverted
          return;
      }
  }

  static void sn65dsi83_atomic_disable()
  {
      regulator_disable(ctx->vcc);
  }

The use case for introducing the additional regulator_disable() was
removing the module for debugging (see link below for the discussion). If
the module is removed after a .atomic_pre_enable, i.e. with an active
pipeline from the DRM point of view, .atomic_disable is not called and thus
the regulator would not be disabled.

According to the discussion however there is no actual use case for
removing the module with an active pipeline, except for
debugging/development.

On the other hand, the occurrence of a PLL lock failure is possible due to
any physical reason (e.g. a temporary hardware failure for electrical
reasons) so handling it gracefully should be supported. As there is no way
for .atomic[_pre]_enable to report an error to the core, the only clean way
to support it is calling regulator_disabled() only in .atomic_disable,
unconditionally, as it was before.

Link: https://lore.kernel.org/all/15244220.uLZWGnKmhe@steina-w/
Fixes: 8a91b29f1f50 ("drm/bridge: ti-sn65dsi83: Fix enable error path")
Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240426122259.46808-1-luca.ceresoli@bootlin.com

Linux 6.9-rc6

Merge tag 'sched-urgent-2024-04-28' of git://git./linux/kernel/git/tip/tip

Pull scheduler fixes from Ingo Molnar:

 - Fix EEVDF corner cases

 - Fix two nohz_full= related bugs that can cause boot crashes
   and warnings

* tag 'sched-urgent-2024-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/isolation: Fix boot crash when maxcpus < first housekeeping CPU
  sched/isolation: Prevent boot crash when the boot CPU is nohz_full
  sched/eevdf: Prevent vlag from going out of bounds in reweight_eevdf()
  sched/eevdf: Fix miscalculation in reweight_entity() when se is not curr
  sched/eevdf: Always update V if se->on_rq when reweighting

Merge tag 'x86-urgent-2024-04-28' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:

 - Make the CPU_MITIGATIONS=n interaction with conflicting
   mitigation-enabling boot parameters a bit saner.

 - Re-enable CPU mitigations by default on non-x86

 - Fix TDX shared bit propagation on mprotect()

 - Fix potential show_regs() system hang when PKE initialization
   is not fully finished yet.

 - Add the 0x10-0x1f model IDs to the Zen5 range

 - Harden #VC instruction emulation some more

* tag 'x86-urgent-2024-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  cpu: Ignore "mitigations" kernel parameter if CPU_MITIGATIONS=n
  cpu: Re-enable CPU mitigations by default for !X86 architectures
  x86/tdx: Preserve shared bit on mprotect()
  x86/cpu: Fix check for RDPKRU in __show_regs()
  x86/CPU/AMD: Add models 0x10-0x1f to the Zen5 range
  x86/sev: Check for MWAITX and MONITORX opcodes in the #VC handler

Merge tag 'irq-urgent-2024-04-28' of git://git./linux/kernel/git/tip/tip

Pull irq fix from Ingo Molnar:
 "Fix a double free bug in the init error path of the GICv3 irqchip
  driver"

* tag 'irq-urgent-2024-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/gic-v3-its: Prevent double free on error

sched/isolation: Fix boot crash when maxcpus < first housekeeping CPU

housekeeping_setup() checks cpumask_intersects(present, online) to ensure
that the kernel will have at least one housekeeping CPU after smp_init(),
but this doesn't work if the maxcpus= kernel parameter limits the number of
processors available after bootup.

For example, a kernel with "maxcpus=2 nohz_full=0-2" parameters crashes at
boot time on a virtual machine with 4 CPUs.

Change housekeeping_setup() to use cpumask_first_and() and check that the
returned CPU number is valid and less than setup_max_cpus.

Another corner case is "nohz_full=0" on a machine with a single CPU or with
the maxcpus=1 kernel argument. In this case non_housekeeping_mask is empty
and tick_nohz_full_setup() makes no sense. And indeed, the kernel hits the
WARN_ON(tick_nohz_full_running) in tick_sched_do_timer().

And how should the kernel interpret the "nohz_full=" parameter? It should
be silently ignored, but currently cpulist_parse() happily returns the
empty cpumask and this leads to the same problem.

Change housekeeping_setup() to check cpumask_empty(non_housekeeping_mask)
and do nothing in this case.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Phil Auld <pauld@redhat.com>
Acked-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20240413141746.GA10008@redhat.com

sched/isolation: Prevent boot crash when the boot CPU is nohz_full

Documentation/timers/no_hz.rst states that the "nohz_full=" mask must not
include the boot CPU, which is no longer true after:

  08ae95f4fd3b ("nohz_full: Allow the boot CPU to be nohz_full").

However after:

  aae17ebb53cd ("workqueue: Avoid using isolated cpus' timers on queue_delayed_work")

the kernel will crash at boot time in this case; housekeeping_any_cpu()
returns an invalid CPU number until smp_init() brings the first
housekeeping CPU up.

Change housekeeping_any_cpu() to check the result of cpumask_any_and() and
return smp_processor_id() in this case.

This is just the simple and backportable workaround which fixes the
symptom, but smp_processor_id() at boot time should be safe at least for
type == HK_TYPE_TIMER, this more or less matches the tick_do_timer_boot_cpu
logic.

There is no worry about cpu_down(); tick_nohz_cpu_down() will not allow to
offline tick_do_timer_cpu (the 1st online housekeeping CPU).

Fixes: aae17ebb53cd ("workqueue: Avoid using isolated cpus' timers on queue_delayed_work")
Reported-by: Chris von Recklinghausen <crecklin@redhat.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Phil Auld <pauld@redhat.com>
Acked-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20240411143905.GA19288@redhat.com
Closes: https://lore.kernel.org/all/20240402105847.GA24832@redhat.com/

Merge tag 'rust-fixes-6.9' of https://github.com/Rust-for-Linux/linux

Pull Rust fixes from Miguel Ojeda:

 - Soundness: make internal functions generated by the 'module!' macro
   inaccessible, do not implement 'Zeroable' for 'Infallible' and
   require 'Send' for the 'Module' trait.

 - Build: avoid errors with "empty" files and workaround 'rustdoc' ICE.

 - Kconfig: depend on '!CFI_CLANG' and avoid selecting 'CONSTRUCTORS'.

 - Code docs: remove non-existing key from 'module!' macro example.

 - Docs: trivial rendering fix in arch table.

* tag 'rust-fixes-6.9' of https://github.com/Rust-for-Linux/linux:
  rust: remove `params` from `module` macro example
  kbuild: rust: force `alloc` extern to allow "empty" Rust files
  kbuild: rust: remove unneeded `@rustc_cfg` to avoid ICE
  rust: kernel: require `Send` for `Module` implementations
  rust: phy: implement `Send` for `Registration`
  rust: make mutually exclusive with CFI_CLANG
  rust: macros: fix soundness issue in `module!` macro
  rust: init: remove impl Zeroable for Infallible
  docs: rust: fix improper rendering in Arch Support page
  rust: don't select CONSTRUCTORS

Merge tag 'riscv-for-linus-6.9-rc6' of git://git./linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - A fix for TASK_SIZE on rv64/NOMMU, to reflect the lack of user/kernel
   separation

 - A fix to avoid loading rv64/NOMMU kernel past the start of RAM

 - A fix for RISCV_HWPROBE_EXT_ZVFHMIN on ilp32 to avoid signed integer
   overflow in the bitmask

 - The sud_test kselftest has been fixed to properly swizzle the syscall
   number into the return register, which are not the same on RISC-V

 - A fix for a build warning in the perf tools on rv32

 - A fix for the CBO selftests, to avoid non-constants leaking into the
   inline asm

 - A pair of fixes for T-Head PBMT errata probing, which has been
   renamed MAE by the vendor

* tag 'riscv-for-linus-6.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  RISC-V: selftests: cbo: Ensure asm operands match constraints, take 2
  perf riscv: Fix the warning due to the incompatible type
  riscv: T-Head: Test availability bit before enabling MAE errata
  riscv: thead: Rename T-Head PBMT to MAE
  selftests: sud_test: return correct emulated syscall value on RISC-V
  riscv: hwprobe: fix invalid sign extension for RISCV_HWPROBE_EXT_ZVFHMIN
  riscv: Fix loading 64-bit NOMMU kernels past the start of RAM
  riscv: Fix TASK_SIZE on 64-bit NOMMU

Merge tag '6.9-rc5-cifs-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:
 "Three smb3 client fixes, all also for stable:

   - two small locking fixes spotted by Coverity

   - FILE_ALL_INFO and network_open_info packing fix"

* tag '6.9-rc5-cifs-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
  smb3: fix lock ordering potential deadlock in cifs_sync_mid_result
  smb3: missing lock when picking channel
  smb: client: Fix struct_group() usage in __packed structs

Merge tag 'i2c-for-6.9-rc6' of git://git./linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "Fix a race condition in the at24 eeprom handler, a NULL pointer
  exception in the I2C core for controllers only using target modes,
  drop a MAINTAINERS entry, and fix an incorrect DT binding for at24"

* tag 'i2c-for-6.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: smbus: fix NULL function pointer dereference
  MAINTAINERS: Drop entry for PCA9541 bus master selector
  eeprom: at24: fix memory corruption race condition
  dt-bindings: eeprom: at24: Fix ST M24C64-D compatible schema

profiling: Remove create_prof_cpu_mask().

create_prof_cpu_mask() is no longer used after commit 1f44a225777e ("s390:
convert interrupt handling to use generic hardirq").

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'soundwire-6.9-fixes' of git://git./linux/kernel/git/vkoul/soundwire

Pull soundwire fix from Vinod Koul:

 - Single AMD driver fix for wake interrupt handling in clockstop mode

* tag 'soundwire-6.9-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
  soundwire: amd: fix for wake interrupt handling for clockstop mode

Merge tag 'dmaengine-fix-6.9' of git://git./linux/kernel/git/vkoul/dmaengine

Pull dmaengine fixes from Vinod Koul:

 - Revert pl330 issue_pending waits until WFP state due to regression
   reported in Bluetooth loading

 - Xilinx driver fixes for synchronization, buffer offsets, locking and
   kdoc

 - idxd fixes for spinlock and preventing the migration of the perf
   context to an invalid target

 - idma driver fix for interrupt handling when powered off

 - Tegra driver residual calculation fix

 - Owl driver register access fix

* tag 'dmaengine-fix-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine:
  dmaengine: idxd: Fix oops during rmmod on single-CPU platforms
  dmaengine: xilinx: xdma: Clarify kdoc in XDMA driver
  dmaengine: xilinx: xdma: Fix synchronization issue
  dmaengine: xilinx: xdma: Fix wrong offsets in the buffers addresses in dma descriptor
  dma: xilinx_dpdma: Fix locking
  dmaengine: idxd: Convert spinlock to mutex to lock evl workqueue
  idma64: Don't try to serve interrupts when device is powered off
  dmaengine: tegra186: Fix residual calculation
  dmaengine: owl: fix register access functions
  dmaengine: Revert "dmaengine: pl330: issue_pending waits until WFP state"

Merge tag 'phy-fixes-6.9' of git://git./linux/kernel/git/phy/linux-phy

Pull phy fixes from Vinod Koul:

 - static checker (array size, bounds) fix for marvel driver

 - Rockchip rk3588 pcie fixes for bifurcation and mux

 - Qualcomm qmp-compbo fix for VCO, register base and regulator name for
   m31 driver

 - charger det crash fix for ti driver

* tag 'phy-fixes-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy:
  phy: ti: tusb1210: Resolve charger-det crash if charger psy is unregistered
  phy: qcom: qmp-combo: fix VCO div offset on v5_5nm and v6
  phy: phy-rockchip-samsung-hdptx: Select CONFIG_RATIONAL
  phy: qcom: m31: match requested regulator name with dt schema
  phy: qcom: qmp-combo: Fix register base for QSERDES_DP_PHY_MODE
  phy: qcom: qmp-combo: Fix VCO div offset on v3
  phy: rockchip: naneng-combphy: Fix mux on rk3588
  phy: rockchip-snps-pcie3: fix clearing PHP_GRF_PCIESEL_CON bits
  phy: rockchip-snps-pcie3: fix bifurcation on rk3588
  phy: freescale: imx8m-pcie: fix pcie link-up instability
  phy: marvell: a3700-comphy: Fix hardcoded array size
  phy: marvell: a3700-comphy: Fix out of bounds read

i2c: smbus: fix NULL function pointer dereference

Baruch reported an OOPS when using the designware controller as target
only. Target-only modes break the assumption of one transfer function
always being available. Fix this by always checking the pointer in
__i2c_transfer.

Reported-by: Baruch Siach <baruch@tkos.co.il>
Closes: https://lore.kernel.org/r/4269631780e5ba789cf1ae391eec1b959def7d99.1712761976.git.baruch@tkos.co.il
Fixes: 4b1acc43331d ("i2c: core changes for slave support")
[wsa: dropped the simplification in core-smbus to avoid theoretical regressions]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Baruch Siach <baruch@tkos.co.il>

drm: xlnx: zynqmp_dpsub: Fix compilation error

Fix W=1 clang 19 compilation error in zynqmp_disp_layer_drm_formats().

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202404260946.4oZXvHD2-lkp@intel.com/

Signed-off-by: Anatoliy Klymenko <anatoliy.klymenko@amd.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240426-dp-live-fmt-fix-v3-2-e904b5ae51d7@amd.com

drm: xlnx: zynqmp_dpsub: Fix few function comments

Fix arguments description for zynqmp_disp_layer_find_live_format() and
zynqmp_disp_layer_set_live_format().

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202404260616.KFGDpCDN-lkp@intel.com/

Signed-off-by: Anatoliy Klymenko <anatoliy.klymenko@amd.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240426-dp-live-fmt-fix-v3-1-e904b5ae51d7@amd.com

Merge tag 'soc-fixes-6.9-2' of git://git./linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "There are a lot of minor DT fixes for Mediatek, Rockchip, Qualcomm and
  Microchip and NXP, addressing both build-time warnings and bugs found
  during runtime testing.

  Most of these changes are machine specific fixups, but there are a few
  notable regressions that affect an entire SoC:

   - The Qualcomm MSI support that was improved for 6.9 ended up being
     wrong on some chips and now gets fixed.

   - The i.MX8MP camera interface broke due to a typo and gets updated
     again.

  The main driver fix is also for Qualcomm platforms, rewriting an
  interface in the QSEECOM firmware support that could lead to crashing
  the kernel from a trusted application.

  The only other code changes are minor fixes for Mediatek SoC drivers"

* tag 'soc-fixes-6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (50 commits)
  ARM: dts: imx6ull-tarragon: fix USB over-current polarity
  soc: mediatek: mtk-socinfo: depends on CONFIG_SOC_BUS
  soc: mediatek: mtk-svs: Append "-thermal" to thermal zone names
  arm64: dts: imx8mp: Fix assigned-clocks for second CSI2
  ARM: dts: microchip: at91-sama7g54_curiosity: Replace regulator-suspend-voltage with the valid property
  ARM: dts: microchip: at91-sama7g5ek: Replace regulator-suspend-voltage with the valid property
  arm64: dts: rockchip: Fix USB interface compatible string on kobol-helios64
  arm64: dts: qcom: sc8180x: Fix ss_phy_irq for secondary USB controller
  arm64: dts: qcom: sm8650: Fix the msi-map entries
  arm64: dts: qcom: sm8550: Fix the msi-map entries
  arm64: dts: qcom: sm8450: Fix the msi-map entries
  arm64: dts: qcom: sc8280xp: add missing PCIe minimum OPP
  arm64: dts: qcom: x1e80100: Fix the compatible for cluster idle states
  arm64: dts: qcom: Fix type of "wdog" IRQs for remoteprocs
  arm64: dts: rockchip: regulator for sd needs to be always on for BPI-R2Pro
  dt-bindings: rockchip: grf: Add missing type to 'pcie-phy' node
  arm64: dts: rockchip: drop redundant disable-gpios in Lubancat 2
  arm64: dts: rockchip: drop redundant disable-gpios in Lubancat 1
  arm64: dts: rockchip: drop redundant pcie-reset-suspend in Scarlet Dumo
  arm64: dts: rockchip: mark system power controller and fix typo on orangepi-5-plus
  ...

drm/amd/display: Add some HDCP registers DCN35 list

Add some missing HDCP registers to be used in DCN35.

Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu/mes11: update ADD_QUEUE interface

Update ADD_QUEUE interface for mes11 to support
mes mapping legacy queue.

Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: fix the warning about the expression (int)size - len

Converting size from size_t to int may overflow.
v2: keep reverse xmas tree order (Christian)

Signed-off-by: Jesse Zhang <jesse.zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu/mes: add mes mapping legacy queue support

Add mes mapping legacy queue framework support.

Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: fix uninitialized scalar variable warning

Clear warning that uses uninitialized value fw_size.

Signed-off-by: Tim Huang <Tim.Huang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Code style adjustments

This commit address some small code style issues in DC.

Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Adjust registers sequence in the DIO list

This commit reorganizes the order in which some control registers are
presented to make it easier to identify the operations based on the
hardware doc.

Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Clean up code in DC

This commit removes some unnecessary code and makes the required
adjustments to replace other parts of the code with a short option.

Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: skip ip dump if devcoredump flag is set

Do not dump the ip registers during driver reload
in passthrough environment.

Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: Modify the contiguous flags behaviour

Now we have two flags for contiguous VRAM buffer allocation.
If the application request for AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS,
it would set the ttm place TTM_PL_FLAG_CONTIGUOUS flag in the
buffer's placement function.

This patch will change the default behaviour of the two flags.

When we set AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS
- This means contiguous is not mandatory.
- we will try to allocate the contiguous buffer. Say if the
  allocation fails, we fallback to allocate the individual pages.

When we setTTM_PL_FLAG_CONTIGUOUS
- This means contiguous allocation is mandatory.
- we are setting this in amdgpu_bo_pin_restricted() before bo validation
  and check this flag in the vram manager file.
- if this is set, we should allocate the buffer pages contiguously.
  the allocation fails, we return -ENOSPC.

v2:
  - keep the mem_flags and bo->flags check as is(Christian)
  - place the TTM_PL_FLAG_CONTIGUOUS flag setting into the
    amdgpu_bo_pin_restricted function placement range iteration
    loop(Christian)
  - rename find_pages with amdgpu_vram_mgr_calculate_pages_per_block
    (Christian)
  - Keep the kernel BO allocation as is(Christain)
  - If BO pin vram allocation failed, we need to return -ENOSPC as
    RDMA cannot work with scattered VRAM pages(Philip)

v3(Christian):
  - keep contiguous flag handling outside of pages_per_block
    calculation
  - remove the hacky implementation in contiguous flag error
    handling code

v4(Christian):
  - use any variable and return value for non-contiguous
    fallback

v5: rebase to amd-staging-drm-next branch

Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix uninitialized variables in DC

This fixes 29 UNINIT issues reported by Coverity.

Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix uninitialized variables in DC

This fixes 49 UNINIT issues reported by Coverity.

Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix uninitialized variables in DM

This fixes 11 UNINIT issues reported by Coverity.

Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Remove redundant include file

This fixes 1 PW.INCLUDE_RECURSION reported by Coverity.

"./drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h"
includes itself: dc_types.h -> dal_types.h -> dc_types.h

Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: ASSERT when failing to find index by plane/stream id

[WHY]
find_disp_cfg_idx_by_plane_id and find_disp_cfg_idx_by_stream_id returns
an array index and they return -1 when not found; however, -1 is not a
valid index number.

[HOW]
When this happens, call ASSERT(), and return a positive number (which is
fewer than callers' array size) instead.

This fixes 4 OVERRUN and 2 NEGATIVE_RETURNS issues reported by Coverity.

Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>