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4 years agodrm/amd/amdgpu_dm/mst: Remove ->destroy_connector() callback
Lyude Paul [Tue, 31 Mar 2020 20:57:35 +0000 (16:57 -0400)]
drm/amd/amdgpu_dm/mst: Remove ->destroy_connector() callback

Pankaj Bharadiya started cleaning up the MST connector callbacks a while
ago, as I pointed out that they are the same across every driver and
don't serve much purpose. There was one callback that was left over
though from amdgpu, that we delayed removing due to not being completely
sure as to whether or not it was needed.

So, I've read through said callback and can confirm it's not at all
needed. Pretty much all of the work that is done in
dm_dp_destroy_mst_connector() can be done in
dm_dp_mst_connector_destroy(). Additionally, I've removed some bits that
didn't actually do anything:

* Removed DRM_INFO message we were printing, this shouldn't be info
  level and there's more appropriate drm debugging flags that should be
  used instead
* Removed amdgpu_dm_update_freesync_caps() - reading into this function,
  it doesn't actually do anything important and I'm not sure why it was
  ever being called here
* Stop clearing aconnector->dc_sink - this also doesn't do anything
* Stop clearing link settings in dc_link - this also doesn't do anything
* Also, use shorter variable

Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200331205740.135525-3-lyude@redhat.com
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
4 years agodrm/amd/amdgpu_dm/mst: Remove unneeded edid assignment when destroying connectors
Lyude Paul [Tue, 31 Mar 2020 20:57:34 +0000 (16:57 -0400)]
drm/amd/amdgpu_dm/mst: Remove unneeded edid assignment when destroying connectors

Doesn't do anything, noticed this while cleaning up some unrelated
stuff.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200331205740.135525-2-lyude@redhat.com
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
4 years agodrm/panel-leadtek-ltk500hd1829: Fix dotclock
Ville Syrjälä [Mon, 2 Mar 2020 20:34:24 +0000 (22:34 +0200)]
drm/panel-leadtek-ltk500hd1829: Fix dotclock

The currently listed dotclock disagrees with the currently
listed vrefresh rate. Change the dotclock to match the vrefresh.

Someone tell me which (if either) of the dotclock or vreresh is
correct?

Cc: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200302203452.17977-6-ville.syrjala@linux.intel.com
Tested-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Acked-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
4 years agodrm: delete drm_pci.h
Daniel Vetter [Fri, 3 Apr 2020 11:06:10 +0000 (13:06 +0200)]
drm: delete drm_pci.h

It's empty!

After more than 20 years of OS abstraction layer for pci devices, it's
kinda gone now.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200403110610.2344842-2-daniel.vetter@ffwll.ch
4 years agodrm/pci: Move drm_pci_alloc/free under CONFIG_DRM_LEGACY
Daniel Vetter [Fri, 3 Apr 2020 11:06:09 +0000 (13:06 +0200)]
drm/pci: Move drm_pci_alloc/free under CONFIG_DRM_LEGACY

All other users have been removed, yay!

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
[fix checkpatch warning]
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200403110610.2344842-1-daniel.vetter@ffwll.ch
4 years agodrm/virtio: make virtio_gpu_object_attach void
Gurchetan Singh [Wed, 1 Apr 2020 22:30:38 +0000 (15:30 -0700)]
drm/virtio: make virtio_gpu_object_attach void

It always returns zero.

Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20200401223039.2860-4-gurchetansingh@chromium.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
4 years agodrm/virtio: delete notify in virtio_gpu_object_create
Gurchetan Singh [Wed, 1 Apr 2020 22:30:37 +0000 (15:30 -0700)]
drm/virtio: delete notify in virtio_gpu_object_create

For 3D buffers, virtio_gpu_gem_object_open notifies.
We can have the same behavior for dumb buffer.

v2: virtio_gpu_gem_object_open always notifies
v3: avoid boolean variable

Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200401223039.2860-3-gurchetansingh@chromium.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
4 years agodrm/virtio: delete notify after virtio_gpu_cmd_context_create
Gurchetan Singh [Wed, 1 Apr 2020 22:30:36 +0000 (15:30 -0700)]
drm/virtio: delete notify after virtio_gpu_cmd_context_create

The first 3D ioctl will take care of notification.

Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200401223039.2860-2-gurchetansingh@chromium.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
4 years agodrm/virtio: random virtgpu_drv.h cleanups
Gurchetan Singh [Wed, 1 Apr 2020 22:30:35 +0000 (15:30 -0700)]
drm/virtio: random virtgpu_drv.h cleanups

- Static-ify virtio_gpu_gem_create
- Delete unused prototypes
- Point to current implementation files

Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200401223039.2860-1-gurchetansingh@chromium.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
4 years agodrm/hisilicon: Enforce 128-byte stride alignment to fix the hardware limitation
Tian Tao [Fri, 6 Mar 2020 03:43:01 +0000 (11:43 +0800)]
drm/hisilicon: Enforce 128-byte stride alignment to fix the hardware limitation

because the hardware limitation,The initial color depth must set to 32bpp
and must set the FB Offset of the display hardware to 128Byte alignment,
which is used to solve the display problem at 800x600 and 1440x900
resolution under 16bpp.

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Gong junjie <gongjunjie2@huawei.com>
Acked-by: Xinliang Liu <xinliang.liu@linaro.org>
Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1583466184-7060-4-git-send-email-tiantao6@hisilicon.com
4 years agodrm/zte: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:50 +0000 (16:59 +0100)]
drm/zte: Use simple encoder

The zte driver uses empty implementations for its encoders. Replace
the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-23-tzimmermann@suse.de
4 years agodrm/vkms: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:48 +0000 (16:59 +0100)]
drm/vkms: Use simple encoder

The vkms driver uses an empty implementation for its encoder. Replace
the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-21-tzimmermann@suse.de
4 years agodrm/virtgpu: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:47 +0000 (16:59 +0100)]
drm/virtgpu: Use simple encoder

The virtgpu driver uses an empty implementation for its encoder. Replace
the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-20-tzimmermann@suse.de
4 years agodrm/vc4: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:46 +0000 (16:59 +0100)]
drm/vc4: Use simple encoder

The vc4 driver uses empty implementations for its encoders. Replace
the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-19-tzimmermann@suse.de
4 years agodrm/tilcdc: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:45 +0000 (16:59 +0100)]
drm/tilcdc: Use simple encoder

The tilcdc driver uses empty implementations for its encoders. Replace
the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Jyri Sarha <jsarha@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-18-tzimmermann@suse.de
4 years agodrm/tidss: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:44 +0000 (16:59 +0100)]
drm/tidss: Use simple encoder

The tidss driver uses an empty implementation for its encoder. Replace
the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Jyri Sarha <jsarha@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-17-tzimmermann@suse.de
4 years agodrm/tegra: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:43 +0000 (16:59 +0100)]
drm/tegra: Use simple encoder

The tegra driver uses empty implementations for its encoders. Replace
the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-16-tzimmermann@suse.de
4 years agodrm/sun4i: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:42 +0000 (16:59 +0100)]
drm/sun4i: Use simple encoder

The ingenic driver uses empty implementations for its encoders. Replace
the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-15-tzimmermann@suse.de
4 years agodrm/shmobile: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:41 +0000 (16:59 +0100)]
drm/shmobile: Use simple encoder

The shmobile driver uses empty implementations for its encoders. Replace
the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-14-tzimmermann@suse.de
4 years agodrm/rockchip: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:40 +0000 (16:59 +0100)]
drm/rockchip: Use simple encoder

The rockchip driver uses empty implementations for its encoders. Replace
the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-13-tzimmermann@suse.de
4 years agodrm/rcar-du: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:39 +0000 (16:59 +0100)]
drm/rcar-du: Use simple encoder

The rcar-du driver uses an empty implementation for its encoder. Replace
the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-12-tzimmermann@suse.de
4 years agodrm/mediatek: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:38 +0000 (16:59 +0100)]
drm/mediatek: Use simple encoder

The mediatek driver uses empty implementations for its encoders. Replace
the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-11-tzimmermann@suse.de
4 years agodrm/ingenic: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:37 +0000 (16:59 +0100)]
drm/ingenic: Use simple encoder

The ingenic driver uses an empty implementation for its encoder. Replace
the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-10-tzimmermann@suse.de
4 years agodrm/imx: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:36 +0000 (16:59 +0100)]
drm/imx: Use simple encoder

The imx driver uses empty implementations for its encoders. Replace
the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-9-tzimmermann@suse.de
4 years agodrm/i2c/tda998x: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:35 +0000 (16:59 +0100)]
drm/i2c/tda998x: Use simple encoder

The tda998x driver uses an empty implementation for its encoder. Replace
the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-8-tzimmermann@suse.de
4 years agodrm/hisilicon/kirin: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:34 +0000 (16:59 +0100)]
drm/hisilicon/kirin: Use simple encoder

The kirin driver uses an empty implementation for its encoder. Replace
the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-7-tzimmermann@suse.de
4 years agodrm/gma500: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:33 +0000 (16:59 +0100)]
drm/gma500: Use simple encoder

The gma500 driver uses empty implementations for some of its encoders.
Replace the code with the generic simple encoder. As a side effect, the
patch also removes an indirection in the encoder setup for Medfield.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-6-tzimmermann@suse.de
4 years agodrm/fsl-dcu: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:32 +0000 (16:59 +0100)]
drm/fsl-dcu: Use simple encoder

The fsl-dcu driver uses an empty implementation for its encoder. Replace
the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-5-tzimmermann@suse.de
4 years agodrm/exynos: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:31 +0000 (16:59 +0100)]
drm/exynos: Use simple encoder

The exynos driver uses empty implementations for its encoders. Replace
the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-4-tzimmermann@suse.de
4 years agodrm/atmel-hlcdc: Use simple encoder
Thomas Zimmermann [Thu, 5 Mar 2020 15:59:30 +0000 (16:59 +0100)]
drm/atmel-hlcdc: Use simple encoder

The atmel-hlcdc driver uses an empty implementation for its encoder.
Replace the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-3-tzimmermann@suse.de
4 years agodrm: Fix wrong kfree() in managed resource usage example
Laurent Pinchart [Thu, 2 Apr 2020 09:53:25 +0000 (12:53 +0300)]
drm: Fix wrong kfree() in managed resource usage example

The example code showing how to use the managed resource API calls
kfree() on the wrong pointer. Fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200402095325.5266-1-laurent.pinchart+renesas@ideasonboard.com
4 years agodrm/core: Calculate bpp in afbc helper
Andrzej Pietrasiewicz [Tue, 31 Mar 2020 15:53:08 +0000 (17:53 +0200)]
drm/core: Calculate bpp in afbc helper

Some drivers (komeda, malidp) don't set anything in cpp. If that is the
case the right value can be inferred from the format. Then the "bpp" member
can be eliminated from struct drm_afbc_framebuffer.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200331155308.6345-3-andrzej.p@collabora.com
4 years agodrm/core: Use proper debugging macro
Andrzej Pietrasiewicz [Tue, 31 Mar 2020 15:53:07 +0000 (17:53 +0200)]
drm/core: Use proper debugging macro

Use drm_dbg_kms() instead of DRM_DEBUG_KMS.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200331155308.6345-2-andrzej.p@collabora.com
4 years agodrm/amdgpu: improve amdgpu_gem_info debugfs file
Christian König [Tue, 10 Mar 2020 13:23:12 +0000 (14:23 +0100)]
drm/amdgpu: improve amdgpu_gem_info debugfs file

Note if a buffer was imported using peer2peer.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/359296
4 years agodrm/amdgpu: add support for exporting VRAM using DMA-buf v3
Christian König [Fri, 23 Mar 2018 15:56:37 +0000 (16:56 +0100)]
drm/amdgpu: add support for exporting VRAM using DMA-buf v3

We should be able to do this now after checking all the prerequisites.

v2: fix entrie count in the sgt
v3: manually construct the sg

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/359295
4 years agodrm/amdgpu: add checks if DMA-buf P2P is supported
Christian König [Fri, 23 Mar 2018 15:33:57 +0000 (16:33 +0100)]
drm/amdgpu: add checks if DMA-buf P2P is supported

Check if we can do peer2peer on the PCIe bus.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/359294
4 years agodrm/amdgpu: note that we can handle peer2peer DMA-buf
Christian König [Thu, 22 Mar 2018 18:21:30 +0000 (19:21 +0100)]
drm/amdgpu: note that we can handle peer2peer DMA-buf

Importing should work out of the box.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/359293
4 years agodrm/ttm: lock resv object during destruction
Christian König [Mon, 30 Mar 2020 13:45:01 +0000 (15:45 +0200)]
drm/ttm: lock resv object during destruction

Calling ttm_bo_cleanup_memtype_use() destroys the TT object
which in turn could result in warnings without this.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/359288
4 years agodma-buf: add peer2peer flag
Christian König [Thu, 22 Mar 2018 16:09:42 +0000 (17:09 +0100)]
dma-buf: add peer2peer flag

Add a peer2peer flag noting that the importer can deal with device
resources which are not backed by pages.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/359286/
4 years agodrm/dp_mst: make build_clear_payload_id_table return void
Maya Rashish [Sat, 21 Mar 2020 22:29:59 +0000 (22:29 +0000)]
drm/dp_mst: make build_clear_payload_id_table return void

Nothing uses the always-0 return value.

Signed-off-by: Maya Rashish <coypu@sdf.org>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200321222959.GA1053@SDF.ORG
4 years agodrm/qxl: Use correct notify port address when creating cursor ring
Huacai Chen [Tue, 31 Mar 2020 06:18:08 +0000 (14:18 +0800)]
drm/qxl: Use correct notify port address when creating cursor ring

The command ring and cursor ring use different notify port addresses
definition: QXL_IO_NOTIFY_CMD and QXL_IO_NOTIFY_CURSOR. However, in
qxl_device_init() we use QXL_IO_NOTIFY_CMD to create both command ring
and cursor ring. This doesn't cause any problems now, because QEMU's
behaviors on QXL_IO_NOTIFY_CMD and QXL_IO_NOTIFY_CURSOR are the same.
However, QEMU's behavior may be change in future, so let's fix it.

P.S.: In the X.org QXL driver, the notify port address of cursor ring
      is correct.

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: <stable@vger.kernel.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1585635488-17507-1-git-send-email-chenhc@lemote.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
4 years agodrm/mm: revert "Break long searches in fragmented address spaces"
Christian König [Mon, 30 Mar 2020 12:30:41 +0000 (14:30 +0200)]
drm/mm: revert "Break long searches in fragmented address spaces"

This reverts commit 7be1b9b8e9d1e9ef0342d2e001f44eec4030aa4d.

The drm_mm is supposed to work in atomic context, so calling schedule()
or in this case cond_resched() is illegal.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/359278/
4 years agodrm: add docs about the IN_FORMATS plane property
Simon Ser [Sun, 29 Mar 2020 14:45:08 +0000 (14:45 +0000)]
drm: add docs about the IN_FORMATS plane property

This is a standard property attached to planes in drm_universal_plane_init
when drm_mode_config.allow_fb_modifiers is true.

Signed-off-by: Simon Ser <contact@emersion.fr>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/mHOtz80Wa-x3A5Lz5ETTM65VUMfW1j6b-iCuvIy1RzOM1EloHPqAb2MnbU8ygZi0ABaLrxuN6pzu0v3QRn83125C0bXuHoo-DQWWEd80fdw=@emersion.fr
4 years agodrm/managed: Fix off-by-one in warning
Daniel Vetter [Sat, 28 Mar 2020 16:23:58 +0000 (17:23 +0100)]
drm/managed: Fix off-by-one in warning

I'm thinking this is the warning that fired in the 0day report, but I
can't double-check yet since 0day didn't upload its source tree
anywhere I can check. And all the drivers I can easily test don't use
drm_dev_alloc anymore ...

Also if I'm correct supreme amounts of bad luck because usually kslap
(for bigger structures) gives us something quite a bit bigger than
what we asked for.

[0day uploaded tree, guess is correct]

Reported-by: kernel test robot <lkp@intel.com>
Fixes: c6603c740e0e ("drm: add managed resources tied to drm_device")
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Neil Armstrong <narmstrong@baylibre.com
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200328162358.18500-1-daniel.vetter@ffwll.ch
4 years agodrm/fb: fix kernel-doc in drm_framebuffer.h
Sam Ravnborg [Sat, 28 Mar 2020 13:20:21 +0000 (14:20 +0100)]
drm/fb: fix kernel-doc in drm_framebuffer.h

Fix following warnings:
drm_framebuffer.h:342: warning: Function parameter or member 'block_width' not described in 'drm_afbc_framebuffer'
drm_framebuffer.h:342: warning: Function parameter or member 'block_height' not described in 'drm_afbc_framebuffer'

Trivial spelling mistakes.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Fixes: 55f7f72753ab ("drm/core: Add drm_afbc_framebuffer and a corresponding helper")
Cc: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Cc: Emil Velikov <emil.velikov@collabora.com>
Cc: James Qian Wang <james.qian.wang@arm.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200328132025.19910-3-sam@ravnborg.org
4 years agodrm/dp_mst: add kernel-doc for drm_dp_mst_port.fec_capable
Sam Ravnborg [Sat, 28 Mar 2020 13:20:24 +0000 (14:20 +0100)]
drm/dp_mst: add kernel-doc for drm_dp_mst_port.fec_capable

Fix kernel-doc warnings for drm_dp_mst_port.fec_capable.
This fixed the following warning:
drm_dp_mst_helper.h:162: warning: Function parameter or member
'fec_capable' not described in 'drm_dp_mst_port'

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: David Francis <David.Francis@amd.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Mikita Lipski <mikita.lipski@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
[Wrapped commit msg + s/network/topology]
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200328132025.19910-6-sam@ravnborg.org
4 years agodrm: error out with EBUSY when device has existing master
Emil Velikov [Thu, 19 Mar 2020 17:29:30 +0000 (17:29 +0000)]
drm: error out with EBUSY when device has existing master

As requested by Adam, provide different error message for when the
device has an existing master. An audit of the following projects, shows
that the errno is used only for printf() purposes.

xorg/xserver
xorg/drivers/xf86-video-ati
xorg/drivers/xf86-video-amdgpu
xorg/drivers/xf86-video-intel
xorg/drivers/xf86-video-tegra
xorg/drivers/xf86-video-freedreno
xorg/drivers/xf86-video-nouveau
xorg/drivers/xf86-video-vmwgfx

qt/kwin/plasma
gtk/mutter/gnomeshell
efl/enlightment

Cc: Adam Jackson <ajax@redhat.com>
Suggested-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200319172930.230583-2-emil.l.velikov@gmail.com
4 years agodrm: rework SET_MASTER and DROP_MASTER perm handling
Emil Velikov [Thu, 19 Mar 2020 17:29:29 +0000 (17:29 +0000)]
drm: rework SET_MASTER and DROP_MASTER perm handling

This commit reworks the permission handling of the two ioctls. In
particular it enforced the CAP_SYS_ADMIN check only, if:
 - we're issuing the ioctl from process other than the one which opened
the node, and
 - we are, or were master in the past

This ensures that we:
 - do not regress the systemd-logind style of DRM_MASTER arbitrator
 - allow applications which do not use systemd-logind to drop their
master capabilities (and regain them at later point) ... w/o running as
root.

See the comment above drm_master_check_perm() for more details.

v1:
 - Tweak wording, fixup all checks, add igt test

v2:
 - Add a few more comments, grammar nitpicks.

Cc: Adam Jackson <ajax@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Pekka Paalanen <ppaalanen@gmail.com>
Testcase: igt/core_setmaster/master-drop-set-user
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200319172930.230583-1-emil.l.velikov@gmail.com
4 years agodrm/radeon: convert to use i2c_new_client_device()
Wolfram Sang [Thu, 26 Mar 2020 21:10:04 +0000 (22:10 +0100)]
drm/radeon: convert to use i2c_new_client_device()

Move away from the deprecated API.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200326211005.13301-7-wsa+renesas@sang-engineering.com
4 years agodrm/nouveau/therm: convert to use i2c_new_client_device()
Wolfram Sang [Thu, 26 Mar 2020 21:10:03 +0000 (22:10 +0100)]
drm/nouveau/therm: convert to use i2c_new_client_device()

Move away from the deprecated API and return the shiny new ERRPTR where
useful.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200326211005.13301-6-wsa+renesas@sang-engineering.com
4 years agodrm/i2c/tda998x: convert to use i2c_new_client_device()
Wolfram Sang [Thu, 26 Mar 2020 21:10:02 +0000 (22:10 +0100)]
drm/i2c/tda998x: convert to use i2c_new_client_device()

Move away from the deprecated API and return the shiny new ERRPTR where
useful.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200326211005.13301-5-wsa+renesas@sang-engineering.com
4 years agodrm/i2c/sil164: convert to use i2c_new_client_device()
Wolfram Sang [Thu, 26 Mar 2020 21:10:01 +0000 (22:10 +0100)]
drm/i2c/sil164: convert to use i2c_new_client_device()

Move away from the deprecated API and return the shiny new ERRPTR where
useful.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200326211005.13301-4-wsa+renesas@sang-engineering.com
4 years agodrm/gma500: convert to use i2c_new_client_device()
Wolfram Sang [Thu, 26 Mar 2020 21:10:00 +0000 (22:10 +0100)]
drm/gma500: convert to use i2c_new_client_device()

Move away from the deprecated API and return the shiny new ERRPTR where
useful.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200326211005.13301-3-wsa+renesas@sang-engineering.com
4 years agodrm/amdgpu: convert to use i2c_new_client_device()
Wolfram Sang [Thu, 26 Mar 2020 21:09:59 +0000 (22:09 +0100)]
drm/amdgpu: convert to use i2c_new_client_device()

Move away from the deprecated API.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200326211005.13301-2-wsa+renesas@sang-engineering.com
4 years agodt-bindings: display: add visionox rm69299 panel variant
Harigovindan P [Fri, 27 Mar 2020 07:36:35 +0000 (13:06 +0530)]
dt-bindings: display: add visionox rm69299 panel variant

Add bindings for visionox rm69299 panel.

Signed-off-by: Harigovindan P <harigovi@codeaurora.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
[fixed indent]
Link: https://patchwork.freedesktop.org/patch/msgid/20200327073636.13823-2-harigovi@codeaurora.org
4 years agodt-bindings: display: xpp055c272: Remove the reg property
Fabio Estevam [Sat, 28 Mar 2020 18:36:41 +0000 (15:36 -0300)]
dt-bindings: display: xpp055c272: Remove the reg property

Commit 52120e8c7ae3 ("dt-bindings: display: fix panel warnings") removed
the dsi unit name, but missed to remove the 'reg' property, which causes
the following 'make dt_binding_check' warning:

Documentation/devicetree/bindings/display/panel/xinpeng,xpp055c272.example.dts:17.5-29.11: Warning (unit_address_vs_reg): /example-0/dsi: node has a reg or ranges property, but no unit name

Fix it by removing the unneeded 'reg' property.

Fixes: 52120e8c7ae3 ("dt-bindings: display: fix panel warnings")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200328183641.11226-2-festevam@gmail.com
4 years agodt-bindings: display: ltk500hd1829: Remove the reg property
Fabio Estevam [Sat, 28 Mar 2020 18:36:40 +0000 (15:36 -0300)]
dt-bindings: display: ltk500hd1829: Remove the reg property

Commit 52120e8c7ae3 ("dt-bindings: display: fix panel warnings") removed
the dsi unit name, but missed to remove the 'reg' property, which causes
the following 'make dt_binding_check' warning:

Documentation/devicetree/bindings/display/panel/leadtek,ltk500hd1829.example.dts:17.5-29.11: Warning (unit_address_vs_reg): /example-0/dsi: node has a reg or ranges property, but no unit name

Fix it by removing the unneeded 'reg' property.

Fixes: 52120e8c7ae3 ("dt-bindings: display: fix panel warnings")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200328183641.11226-1-festevam@gmail.com
4 years agodrm: panel: Add Starry KR070PE2T
Pascal Roeleven [Fri, 20 Mar 2020 11:21:33 +0000 (12:21 +0100)]
drm: panel: Add Starry KR070PE2T

The KR070PE2T is a 7" panel with a resolution of 800x480.

KR070PE2T is the marking present on the ribbon cable. As this panel is
probably available under different brands, this marking will catch
most devices.

As I can't find a datasheet for this panel, the bus_flags are instead
from trial-and-error. The flags seem to be common for these kind of
panels as well.

Signed-off-by: Pascal Roeleven <dev@pascalroeleven.nl>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200320112205.7100-3-dev@pascalroeleven.nl
4 years agodt-bindings: panel: Add binding for Starry KR070PE2T
Pascal Roeleven [Fri, 20 Mar 2020 11:21:32 +0000 (12:21 +0100)]
dt-bindings: panel: Add binding for Starry KR070PE2T

Add the devicetree binding for Starry KR070PE2T

Signed-off-by: Pascal Roeleven <dev@pascalroeleven.nl>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200320112205.7100-2-dev@pascalroeleven.nl
4 years agodrm/lima: Add optional devfreq and cooling device support
Martin Blumenstingl [Thu, 19 Mar 2020 20:34:27 +0000 (21:34 +0100)]
drm/lima: Add optional devfreq and cooling device support

Most platforms with a Mali-400 or Mali-450 GPU also have support for
changing the GPU clock frequency. Add devfreq support so the GPU clock
rate is updated based on the actual GPU usage when the
"operating-points-v2" property is present in the board.dts.

The actual devfreq code is taken from panfrost_devfreq.c and modified so
it matches what the lima hardware needs:
- a call to dev_pm_opp_set_clkname() during initialization because there
  are two clocks on Mali-4x0 IPs. "core" is the one that actually clocks
  the GPU so we need to control it using devfreq.
- locking when reading or writing the devfreq statistics because (unlike
  than panfrost) we have multiple PP and GP IRQs which may finish jobs
  concurrently.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200319203427.2259891-3-martin.blumenstingl@googlemail.com
4 years agodrm/dp_mst: Remove single tx msg restriction.
Sean Paul [Thu, 13 Feb 2020 21:15:20 +0000 (16:15 -0500)]
drm/dp_mst: Remove single tx msg restriction.

Now that we can support multiple simultaneous replies, remove the
restrictions placed on sending new tx msgs.

This patch essentially just reverts commit
  5a64967a2f3b ("drm/dp_mst: Have DP_Tx send one msg at a time")
now that the problem is solved in a different way.

Cc: Wayne Lin <Wayne.Lin@amd.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Wayne Lin <waynelin@amd.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200213211523.156998-4-sean@poorly.run
4 years agodrm/mst: Support simultaneous down replies
Sean Paul [Thu, 13 Feb 2020 21:15:19 +0000 (16:15 -0500)]
drm/mst: Support simultaneous down replies

Currently we have one down reply message servicing the mst manager, so
we need to serialize all tx msgs to ensure we only have one message in
flight at a time. For obvious reasons this is suboptimal (but less
suboptimal than the free-for-all we had before serialization).

This patch removes the single down_rep_recv message from manager and
adds 2 replies in the branch structure. The 2 replies mirrors the tx_slots
which we use to rate-limit outgoing messages and correspond to seqno in
the packet headers.

Cc: Wayne Lin <Wayne.Lin@amd.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Wayne Lin <waynelin@amd.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200213211523.156998-3-sean@poorly.run
4 years agodrm/mst: Separate sideband packet header parsing from message building
Sean Paul [Thu, 13 Feb 2020 21:15:18 +0000 (16:15 -0500)]
drm/mst: Separate sideband packet header parsing from message building

In preparation of per-branch device down message handling, separate
header parsing from message building. This will allow us to peek at
figure out which branch device the message is from before starting to
parse the message contents.

Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Wayne Lin <waynelin@amd.com>
[seanpaul s/drm_dp_sideband_msg_build/drm_dp_sideband_msg_set_header/]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200213211523.156998-2-sean@poorly.run
4 years agodrm/fb-helper: Add TODO for making drm_fb_helper_alloc_fbi fill apertures
Hans de Goede [Thu, 26 Mar 2020 15:10:09 +0000 (16:10 +0100)]
drm/fb-helper: Add TODO for making drm_fb_helper_alloc_fbi fill apertures

Currently drivers using drm_fbdev_generic_setup() end up with a single
empty aperture in their fb_info struct.

Not having the proper info in the apertures list causes
register_framebuffer to not remove conflicting framebuffers,
which some drivers currently workaround by manually calling
drm_fb_helper_remove_conflicting_pci_framebuffers().

Add a TODO as a reminder that we need to fix this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200326151009.102377-1-hdegoede@redhat.com
4 years agodrm/bridge: sii9234: silence warning about regulators during deferred probe
Marek Szyprowski [Wed, 26 Feb 2020 10:13:07 +0000 (11:13 +0100)]
drm/bridge: sii9234: silence warning about regulators during deferred probe

Don't confuse user with meaningless warning about failure in getting
regulators in case of deferred probe.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200226101307.16708-1-m.szyprowski@samsung.com
4 years agodrm: Add docs for managed resources
Daniel Vetter [Mon, 23 Mar 2020 14:49:50 +0000 (15:49 +0100)]
drm: Add docs for managed resources

All collected together to provide a consistent story in one patch,
instead of the somewhat bumpy refactor-evolution leading to this.

Also some thoughts on what the next steps could be:

- Create a macro called devm_drm_dev_alloc() which essentially wraps
  the kzalloc(); devm_drm_dev_init(); drmm_add_final_kfree() combo.
  Needs to be a macro since we'll have to do some typeof trickery and
  casting to make this fully generic for all drivers that embed struct
  drm_device into their own thing.

- A lot of the simple drivers now have essentially just
  drm_dev_unplug(); drm_atomic_helper_shutdown(); as their
  $bus_driver->remove hook. We could create a devm_mode_config_reset
  which sets drm_atomic_helper_shutdown as it's cleanup action, and a
  devm_drm_dev_register with drm_dev_unplug as it's cleanup action,
  and simple drivers wouldn't have a need for a ->remove function at
  all, and we could delete them.

- For more complicated drivers we need drmm_ versions of a _lot_ more
  things. All the userspace visible objects (crtc, plane, encoder,
  crtc), anything else hanging of those (maybe a drmm_get_edid, at
  least for panels and other built-in stuff).

Also some more thoughts on why we're not reusing devm_ with maybe a
fake struct device embedded into the drm_device (we can't use the
kdev, since that's in each drm_minor).

- Code review gets extremely tricky, since every time you see a devm_
  you need to carefully check whether the fake device (with the
  drm_device lifetim) or the real device (with the lifetim of the
  underlying physical device and driver binding) are used. That's not
  going to help at all, and we have enormous amounts of drivers who
  use devm_ where they really shouldn't. Having different types makes
  sure the compiler type checks this for us and ensures correctness.

- The set of functions are very much non-overlapping. E.g.
  devm_ioremap makes total sense, drmm_ioremap has the wrong lifetime,
  since hw resources need to be cleaned out at driver unbind and wont
  outlive that like a drm_device. Similar, but other way round for
  drmm_connector_init (which is the only correct version, devm_ for
  drm_connector is just buggy). Simply not having the wrong version
  again prevents bugs.

Finally I guess this opens a huge todo for all the drivers. I'm
semi-tempted to do a tree-wide s/devm_kzalloc/drmm_kzalloc/ since most
likely that'll fix an enormous amount of bugs and most likely not
cause any issues at all (aside from maybe holding onto memory slightly
too long).

v2:
- Doc improvements from Laurent.
- Also add kerneldoc for the new drmm_add_action_or_reset.

v3:
- Remove kerneldoc for drmm_remove_action.

Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
fixup docs
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-52-daniel.vetter@ffwll.ch
4 years agodrm/udl: drop drm_driver.release hook
Daniel Vetter [Mon, 23 Mar 2020 14:49:49 +0000 (15:49 +0100)]
drm/udl: drop drm_driver.release hook

There's only two functions called from that:
drm_kms_helper_poll_fini() and udl_free_urb_list(). Both of these are
also called from the ubs_driver->disconnect hook, so entirely
pointless to do the same again in the ->release hook.

Furthermore by the time we clean up the drm_driver we really shouldn't
be touching hardware anymore, so stopping the poll worker and freeing
the urb allocations in ->disconnect is the right thing to do.

Now disconnect still cleans things up before unregistering the driver,
but that's a different issue.

v2: Use _fini, not _disable in unplug, motivated by discussions with
Thomas. _disable/_enable are for suspend/resume.

Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Sean Paul <sean@poorly.run>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-51-daniel.vetter@ffwll.ch
4 years agodrm/udl: Drop explicit drm_mode_config_cleanup call
Daniel Vetter [Mon, 23 Mar 2020 14:49:48 +0000 (15:49 +0100)]
drm/udl: Drop explicit drm_mode_config_cleanup call

It's right above the drm_dev_put().

This allows us to delete a bit of onion unwinding in
udl_modeset_init().

This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().

v2: Explain why this cleanup is possible (Laurent).

v3: Use drmm_mode_config_init() for more clarity (Sam, Thomas)

Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Sean Paul <sean@poorly.run>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-50-daniel.vetter@ffwll.ch
4 years agodrm/mipi-dbi: Drop explicit drm_mode_config_cleanup call
Daniel Vetter [Mon, 23 Mar 2020 14:49:47 +0000 (15:49 +0100)]
drm/mipi-dbi: Drop explicit drm_mode_config_cleanup call

Allows us to drop the drm_driver.release callback from all
drivers, and remove the mipi_dbi_release() function.

This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().

v2: Explain why this cleanup is possible (Laurent).

v3: Use drmm_mode_config_init() for more clarity (Sam, Thomas)

Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org> (v2)
Tested-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Eric Anholt <eric@anholt.net>
Cc: David Lechner <david@lechnology.com>
Cc: Kamlesh Gurudasani <kamlesh.gurudasani@gmail.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-49-daniel.vetter@ffwll.ch
4 years agodrm/mipi-dbi: Move drm_mode_config_init into mipi library
Daniel Vetter [Mon, 23 Mar 2020 14:49:46 +0000 (15:49 +0100)]
drm/mipi-dbi: Move drm_mode_config_init into mipi library

7/7 drivers agree that's the right choice, let's do this.

This avoids duplicating the same old error checking code over all 7
drivers, which is the motivation here.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Tested-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Eric Anholt <eric@anholt.net>
Cc: David Lechner <david@lechnology.com>
Cc: Kamlesh Gurudasani <kamlesh.gurudasani@gmail.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-48-daniel.vetter@ffwll.ch
4 years agodrm/repaper: Drop explicit drm_mode_config_cleanup call
Daniel Vetter [Mon, 23 Mar 2020 14:49:45 +0000 (15:49 +0100)]
drm/repaper: Drop explicit drm_mode_config_cleanup call

Allows us to drop the drm_driver.release callback.

This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().

v2: Explain why this cleanup is possible (Laurent).

v3: Use drmm_mode_config_init() for more clarity (Sam, Thomas)
I also noticed that I've failed to add the error checking,
__must_check caught that.

Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org> (v2)
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-47-daniel.vetter@ffwll.ch
4 years agodrm/gm12u320: Simplify upload work
Daniel Vetter [Mon, 23 Mar 2020 14:49:44 +0000 (15:49 +0100)]
drm/gm12u320: Simplify upload work

Instead of having a work item that never stops (which really should be
a kthread), with a dedicated workqueue to not upset anyone else, use a
delayed work. A bunch of changes:

- We can throw out all the custom wakeup and requeue logic and state
  tracking. If we schedule the work with a 0 delay it'll get
  scheduled immediately.

- Persistent state (frame & draw_status_timeout) need to be moved out
  of the work.

- diff is bigger than the changes, biggest chunk is reindenting the
  work fn because it lost its while loop.

Lots of code deleting as consequence all over. Specifically we can
delete the drm_driver.release code now!

v2: Review from Hans:
- Use mod_delayed_work in the plane update path to make sure we do
  actually schedule immediately). In the worker we still want
  queue_delayed_work, which won't modify the timeout when the work is
  already scheduled. Which is exactly what we want if the work races
  with a plane update.
- Switch to system_long_wq, Hans says on usb2 a plane upload can take
  80 ms.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-46-daniel.vetter@ffwll.ch
4 years agodrm/gm12u320: Use helpers for shutdown/suspend/resume
Daniel Vetter [Mon, 23 Mar 2020 14:49:43 +0000 (15:49 +0100)]
drm/gm12u320: Use helpers for shutdown/suspend/resume

Also there's a race in the disconnect implemenation. First shut
down, then unplug, leaves a window where userspace could sneak
in and restart the entire machinery.

With this we can also delete the very un-atomic global pipe_enabled
tracking.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-45-daniel.vetter@ffwll.ch
4 years agodrm/gm12u320: Use devm_drm_dev_init
Daniel Vetter [Mon, 23 Mar 2020 14:49:42 +0000 (15:49 +0100)]
drm/gm12u320: Use devm_drm_dev_init

Only drops the drm_dev_put, but hey a few lines!

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-44-daniel.vetter@ffwll.ch
4 years agodrm/gm12u320: More drmm_
Daniel Vetter [Mon, 23 Mar 2020 14:49:41 +0000 (15:49 +0100)]
drm/gm12u320: More drmm_

The drm_mode_config_cleanup call we can drop, and all the allocations
we can switch over to drmm_kzalloc. Unfortunately the work queue is
still present, so can't get rid of the drm_driver->release function
outright.

v2: Use drmm_mode_config_init() for more clarity (Sam, Thomas)

Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com> (v1)
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-43-daniel.vetter@ffwll.ch
4 years agodrm/tidss: Drop explicit drm_mode_config_cleanup call
Daniel Vetter [Mon, 23 Mar 2020 14:49:40 +0000 (15:49 +0100)]
drm/tidss: Drop explicit drm_mode_config_cleanup call

It's right above the drm_dev_put().

This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().

Aside: Another driver with a bit much devm_kzalloc, which should
probably use drmm_kzalloc instead ...

I'm pretty sure this one blows up already under KASAN because it's
using devm_drm_dev_init, and later on devm_kzalloc. Hence the memory
will get freed before the final drm_dev_put (all from the devres
code), but the cleanup in that final drm_dev_put will access the just
freed memory.

Unfortunately fixing this properly needs slightly more work, namely
drmm_ versions for all the drm objects (planes, crtc, ...), so that
the cleanup actually happens before even drmm_kzalloc would release
the underlying memory. Not quite there yet.

v2: Explain why this cleanup is possible (Laurent).

v3: Use drmm_mode_config_init() for more clarity (Sam, Thomas)

Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Jyri Sarha <jsarha@ti.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-42-daniel.vetter@ffwll.ch
4 years agodrm/mtk: Drop explicit drm_mode_config_cleanup call
Daniel Vetter [Mon, 23 Mar 2020 14:49:39 +0000 (15:49 +0100)]
drm/mtk: Drop explicit drm_mode_config_cleanup call

It's right above the drm_dev_put().

This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().

Aside: Another driver with a bit much devm_kzalloc, which should
probably use drmm_kzalloc instead ...

v2: Explain why this cleanup is possible (Laurent).

v3: Use drmm_mode_config_init() for more clarity (Sam, Thomas)

Acked-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-41-daniel.vetter@ffwll.ch
4 years agodrm/shmob: Drop explicit drm_mode_config_cleanup call
Daniel Vetter [Mon, 23 Mar 2020 14:49:38 +0000 (15:49 +0100)]
drm/shmob: Drop explicit drm_mode_config_cleanup call

It's right above the drm_dev_put().

This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().

Aside: Another driver with a bit much devm_kzalloc, which should
probably use drmm_kzalloc instead ...

v2: Explain why this cleanup is possible (Laurent).

v3: Use drmm_mode_config_init() for more clarity (Sam, Thomas)

Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> (v2)
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Cc: linux-renesas-soc@vger.kernel.org
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-40-daniel.vetter@ffwll.ch
4 years agodrm/stm: Drop explicit drm_mode_config_cleanup call
Daniel Vetter [Mon, 23 Mar 2020 14:49:37 +0000 (15:49 +0100)]
drm/stm: Drop explicit drm_mode_config_cleanup call

It's right above the drm_dev_put().

This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().

Aside: Another driver with a bit much devm_kzalloc, which should
probably use drmm_kzalloc instead ...

v2: Explain why this cleanup is possible (Laurent).

v3: Use drmm_mode_config_init() for more clarity (Sam, Thomas)

Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Philippe Cornu <philippe.cornu@st.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Yannick Fertre <yannick.fertre@st.com>
Cc: Philippe Cornu <philippe.cornu@st.com>
Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: Vincent Abriou <vincent.abriou@st.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-arm-kernel@lists.infradead.org
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-39-daniel.vetter@ffwll.ch
4 years agodrm/rockchip: Drop explicit drm_mode_config_cleanup call
Daniel Vetter [Mon, 23 Mar 2020 14:49:36 +0000 (15:49 +0100)]
drm/rockchip: Drop explicit drm_mode_config_cleanup call

It's (almost, there's some iommu stuff without significance) right
above the drm_dev_put().

This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().

Aside: Another driver with a bit much devm_kzalloc, which should
probably use drmm_kzalloc instead ...

v2: Explain why this cleanup is possible (Laurent).

v3: Jump out at the right label (Francesco)

v4: Try again, kbuild caught that I didn't build test this properly
...

v5: Use drmm_mode_config_init() for more clarity (Sam, Thomas)

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Francesco Lavra <francescolavra.fl@gmail.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Sandy Huang <hjc@rock-chips.com>
Cc: "Heiko Stübner" <heiko@sntech.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-38-daniel.vetter@ffwll.ch
4 years agodrm/rcar-du: Drop explicit drm_mode_config_cleanup call
Daniel Vetter [Mon, 23 Mar 2020 14:49:35 +0000 (15:49 +0100)]
drm/rcar-du: Drop explicit drm_mode_config_cleanup call

It's right above the drm_dev_put().

This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().

Aside: Another driver with a bit much devm_kzalloc, which should
probably use drmm_kzalloc instead ...

v2: Explain why this cleanup is possible (Laurent).

v3: Use drmm_mode_config_init() for more clarity (Sam, Thomas)

Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> (v2)
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Cc: linux-renesas-soc@vger.kernel.org
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-37-daniel.vetter@ffwll.ch
4 years agodrm/pl111: Drop explicit drm_mode_config_cleanup call
Daniel Vetter [Mon, 23 Mar 2020 14:49:34 +0000 (15:49 +0100)]
drm/pl111: Drop explicit drm_mode_config_cleanup call

It's right above the drm_dev_put().

This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().

Aside: This driver gets its devm_ stuff all wrong wrt drm_device and
anything hanging off that. Not the only one unfortunately.

v2: Explain why this cleanup is possible (Laurent).

v3: Use drmm_mode_config_init() for more clarity (Sam, Thomas)

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-36-daniel.vetter@ffwll.ch
4 years agodrm/meson: Drop explicit drm_mode_config_cleanup call
Daniel Vetter [Mon, 23 Mar 2020 14:49:33 +0000 (15:49 +0100)]
drm/meson: Drop explicit drm_mode_config_cleanup call

It's right above the drm_dev_put().

This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().

Aside: This driver gets its devm_ stuff all wrong wrt drm_device and
anything hanging off that. Not the only one unfortunately.

v2: Explain why this cleanup is possible (Laurent).

v3: Use drmm_mode_config_init() for more clarity (Sam, Thomas)

Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> (v2)
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: linux-amlogic@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-35-daniel.vetter@ffwll.ch
4 years agodrm/mcde: More devm_drm_dev_init
Daniel Vetter [Mon, 23 Mar 2020 14:49:32 +0000 (15:49 +0100)]
drm/mcde: More devm_drm_dev_init

Auto-unwind ftw, now possible with the fixed drm_device related
management.

Aside, clk/regulator seem to be missing devm versions for a bunch of
functions, preventing a pile of these simpler drivers from outright
losing their ->remove hook.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-34-daniel.vetter@ffwll.ch
4 years agodrm/mcde: Drop explicit drm_mode_config_cleanup call
Daniel Vetter [Mon, 23 Mar 2020 14:49:31 +0000 (15:49 +0100)]
drm/mcde: Drop explicit drm_mode_config_cleanup call

Allows us to drop the drm_driver.release callback.

This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().

v2: Explain why this cleanup is possible (Laurent).

v3: Use drmm_mode_config_init() for more clarity (Sam, Thomas)

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org> (v2)
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-33-daniel.vetter@ffwll.ch
4 years agodrm/ingenic: Drop explicit drm_mode_config_cleanup call
Daniel Vetter [Mon, 23 Mar 2020 14:49:30 +0000 (15:49 +0100)]
drm/ingenic: Drop explicit drm_mode_config_cleanup call

Allows us to drop the drm_driver.release callback.

This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().

v2: Explain why this cleanup is possible (Laurent).

v3: Use drmm_mode_config_init() for more clarity (Sam, Thomas)

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Paul Cercueil <paul@crapouillou.net> (v2)
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Paul Cercueil <paul@crapouillou.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-32-daniel.vetter@ffwll.ch
4 years agodrm/cirrus: Fully embrace devm_
Daniel Vetter [Mon, 23 Mar 2020 14:49:29 +0000 (15:49 +0100)]
drm/cirrus: Fully embrace devm_

With the drm_device lifetime fun cleaned up there's nothing in the way
anymore to use devm_ for everything hw releated. Do it, and in the
process, throw out the entire onion unwinding.

Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Emil Velikov <emil.velikov@collabora.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: virtualization@lists.linux-foundation.org
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-31-daniel.vetter@ffwll.ch
4 years agodrm/cirrus: Drop explicit drm_mode_config_cleanup call
Daniel Vetter [Mon, 23 Mar 2020 14:49:28 +0000 (15:49 +0100)]
drm/cirrus: Drop explicit drm_mode_config_cleanup call

We can even delete the drm_driver.release hook now!

This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().

v2: Explain why this cleanup is possible (Laurent).

v3: Use drmm_mode_config_init() for more clarity (Sam, Thomas)

Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: virtualization@lists.linux-foundation.org
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-30-daniel.vetter@ffwll.ch
4 years agodrm/bochs: Drop explicit drm_mode_config_cleanup
Daniel Vetter [Mon, 23 Mar 2020 14:49:27 +0000 (15:49 +0100)]
drm/bochs: Drop explicit drm_mode_config_cleanup

Instead rely on the automatic clean, for which we just need to check
that drm_mode_config_init succeeded. To avoid an inversion in the
cleanup we also have to move the dev_private allocation over to
drmm_kzalloc.

This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().

v2: Explain why this cleanup is possible (Laurent).

v3: Use drmm_mode_config_init() for more clarity (Sam, Thomas)

Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: virtualization@lists.linux-foundation.org
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-29-daniel.vetter@ffwll.ch
4 years agodrm/bochs: Remove leftover drm_atomic_helper_shutdown
Daniel Vetter [Mon, 23 Mar 2020 14:49:26 +0000 (15:49 +0100)]
drm/bochs: Remove leftover drm_atomic_helper_shutdown

Small mistake that crept into

commit 81da8c3b8d3df6f05b11300b7d17ccd1f3017fab
Author: Gerd Hoffmann <kraxel@redhat.com>
Date:   Tue Feb 11 14:52:18 2020 +0100

    drm/bochs: add drm_driver.release callback

where drm_atomic_helper_shutdown was left in both places. The
->release callback really shouldn't touch hardware.

Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-28-daniel.vetter@ffwll.ch
4 years agodrm: Manage drm_mode_config_init with drmm_
Daniel Vetter [Mon, 23 Mar 2020 14:49:25 +0000 (15:49 +0100)]
drm: Manage drm_mode_config_init with drmm_

drm_mode_config_cleanup is idempotent, so no harm in calling this
twice. This allows us to gradually switch drivers over by removing
explicit drm_mode_config_cleanup calls.

With this step it's now also possible that (at least for simple
drivers) automatic resource cleanup can be done correctly without a
drm_driver->release hook. Therefore allow this now in
devm_drm_dev_init().

Also with drmm_ explicit drm_driver->release hooks are kinda not the
best option: Drivers can always just register their current release
hook with drmm_add_action, but even better they could split them up to
simplify the unwinding for the driver load failure case. So deprecate
that hook to discourage future users.

v2: Fixup the example in the kerneldoc too.

v3:
- For paranoia, double check that minor->dev == dev in the release
  hook, because I botched the pointer math in the drmm library.
- Call drm_mode_config_cleanup when drmm_add_action fails, we'd be
  missing some mutex_destroy and ida_cleanup otherwise (Laurent)

v4: Add a drmm_add_action_or_reset (like devm_ has) to encapsulate this
pattern (Noralf).

v5: Fix oversight in the new drmm_add_action_or_reset macro (Noralf)

v4: Review from Sam:
- drmm_mode_config_init wrapper (also suggested by Thomas)
- improve commit message, explain better why ->relase is deprecated

v5:
- Make drmm_ the main function, with the old one as compat wrapper
  (Sam)
- Add FIXME comments to drm_mode_config_cleanup/init() that drivers
  shouldn't use these anymore.
- Move drmm_add_action_or_reset helper to an earlier patch.

Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-27-daniel.vetter@ffwll.ch
4 years agodrm: Garbage collect drm_dev_fini
Daniel Vetter [Mon, 23 Mar 2020 14:49:24 +0000 (15:49 +0100)]
drm: Garbage collect drm_dev_fini

It has become empty. Given the few users I figured not much point
splitting this up.

v2: Rebase over i915 changes.

v3: Rebase over patch split fix.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-26-daniel.vetter@ffwll.ch
4 years agodrm: Manage drm_vblank_cleanup with drmm_
Daniel Vetter [Mon, 23 Mar 2020 14:49:23 +0000 (15:49 +0100)]
drm: Manage drm_vblank_cleanup with drmm_

Nothing special here, except that this is the first time that we
automatically clean up something that's initialized with an explicit
driver call. But the cleanup was done at the very end of the release
sequence for all drivers, and that's still the case. At least without
more uses of drmm_ through explicit driver calls.

Also for this one we need drmm_kcalloc, so lets add those.

The motivation here is to allow us to remove the explicit calls to
drm_dev_fini() from all drivers.

v2: Sort includes (Laurent)

v3: Motivate the change in the commit message better (Sam)

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-25-daniel.vetter@ffwll.ch
4 years agodrm: Manage drm_gem_init with drmm_
Daniel Vetter [Mon, 23 Mar 2020 14:49:22 +0000 (15:49 +0100)]
drm: Manage drm_gem_init with drmm_

We might want to look into pushing this down into drm_mm_init, but
that would mean rolling out return codes to a pile of functions
unfortunately. So let's leave that for now.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-24-daniel.vetter@ffwll.ch
4 years agodrm: manage drm_minor cleanup with drmm_
Daniel Vetter [Tue, 24 Mar 2020 20:39:36 +0000 (21:39 +0100)]
drm: manage drm_minor cleanup with drmm_

The cleanup here is somewhat tricky, since we can't tell apart the
allocated minor index from 0. So register a cleanup action first, and
if the index allocation fails, unregister that cleanup action again to
avoid bad mistakes.

The kdev for the minor already handles NULL, so no problem there.

Hence add drmm_remove_action() to the drm_managed library.

v2: Make pointer math around void ** consistent with what Laurent
suggested.

v3: Use drmm_add_action_or_reset and remove drmm_remove_action. Noticed
because of some questions from Thomas. This also means we need to move
the drmm_add_action_or_reset helper earlier in the series.

v4: Uh ... fix slightly embarrassing bug CI spotted.

Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200324203936.3330994-1-daniel.vetter@ffwll.ch
4 years agodrm: Use drmm_ for drm_dev_init cleanup
Daniel Vetter [Mon, 23 Mar 2020 14:49:20 +0000 (15:49 +0100)]
drm: Use drmm_ for drm_dev_init cleanup

Well for the simple stuff at least, vblank, gem and minor cleanup I
want to further split up as a demonstration.

v2: We need to clear drm_device->dev otherwise the debug drm printing
after our cleanup hook (e.g. in drm_manged_release) will chase
released memory and result in a use-after-free. Not really pretty, but
oh well.

Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-22-daniel.vetter@ffwll.ch
4 years agodrm: Handle dev->unique with drmm_
Daniel Vetter [Mon, 23 Mar 2020 14:49:19 +0000 (15:49 +0100)]
drm: Handle dev->unique with drmm_

We need to add a drmm_kstrdup for this, but let's start somewhere.

This is not exactly perfect onion unwinding, but it's jsut a kfree so
doesn't really matter at all.

Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-21-daniel.vetter@ffwll.ch
4 years agodrm: Cleanups after drmm_add_final_kfree rollout
Daniel Vetter [Mon, 23 Mar 2020 14:49:18 +0000 (15:49 +0100)]
drm: Cleanups after drmm_add_final_kfree rollout

A few things:
- Update the example driver in the documentation.
- We can drop the old kfree in drm_dev_release.
- Add a WARN_ON check in drm_dev_register to make sure everyone calls
  drmm_add_final_kfree and there's no leaks.

v2: Restore the full cleanup, I accidentally left some moved code
behind when fixing the bisectability of the series.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-20-daniel.vetter@ffwll.ch
4 years agodrm/<drivers>: Use drmm_add_final_kfree
Daniel Vetter [Mon, 23 Mar 2020 14:49:17 +0000 (15:49 +0100)]
drm/<drivers>: Use drmm_add_final_kfree

These are the leftover drivers that didn't have a ->release hook that
needed to be updated.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: "James (Qian) Wang" <james.qian.wang@arm.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Mihail Atanassov <mihail.atanassov@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-19-daniel.vetter@ffwll.ch
4 years agodrm/gm12u320: Use drmm_add_final_kfree
Daniel Vetter [Mon, 23 Mar 2020 14:49:16 +0000 (15:49 +0100)]
drm/gm12u320: Use drmm_add_final_kfree

With this we can drop the final kfree from the release function.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-18-daniel.vetter@ffwll.ch