Commit Graph

782385 Commits

Author SHA1 Message Date
Kuninori Morimoto
d7cfd25904 drm: panel-lvds: convert to SPDX identifiers
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-09-14 13:54:02 +03:00
Kuninori Morimoto
59104f239b drm: shmobile: convert to SPDX identifiers
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-09-14 13:54:02 +03:00
Sergei Shtylyov
ab77eb4c4d dt-bindings: display: renesas: lvds: document R8A77980 bindings
Document the R-Car V3H (R8A77980) SoC in the R-Car LVDS bindings.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2018-09-14 13:54:01 +03:00
Sergei Shtylyov
4ffe5aa537 dt-bindings: display: renesas: du: document R8A77980 bindings
Document the R-Car V3H (R8A77980) SoC in the R-Car DU bindings; the DU
hardware has the same topology as in the R-Car V3M (R8A77970).

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2018-09-14 13:54:00 +03:00
Kieran Bingham
7408e252dd MAINTAINERS: rcar-du: Add co-maintainer
Add myself as a co-maintainer for the Renesas DRM drivers.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Acked-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2018-09-14 13:54:00 +03:00
Laurent Pinchart
308b118b60 MAINTAINERS: Update tree location for the Renesas DRM drivers
The fbdev git tree referenced in the MAINTAINERS file doesn't exist
anymore. Update the location to point to the new git tree.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2018-09-14 10:55:06 +03:00
Dave Airlie
2dc7bad71c drm-misc-next for 4.20:
UAPI Changes:
 - Add host endian variants for the most common formats (Gerd)
 - Fail ADDFB2 for big-endian drivers that don't advertise BE quirk (Gerd)
 - clear smem_start in fbdev for drm drivers to avoid leaking fb addr (Daniel)
 
 Cross-subsystem Changes:
 
 Core Changes:
 - fix drm_mode_addfb() on big endian machines (Gerd)
 - add timeline point to syncobj find+replace (Chunming)
 - more drmP.h removal effort (Daniel)
 - split uapi portions of drm_atomic.c into drm_atomic_uapi.c (Daniel)
 
 Driver Changes:
 - bochs: Convert open-coded portions to use helpers (Peter)
 - vkms: Add cursor support (Haneen)
 - udmabuf: Lots of fixups (mostly cosmetic afaict) (Gerd)
 - qxl: Convert to use fbdev helper (Peter)
 
 Cc: Gerd Hoffmann <kraxel@redhat.com>
 Cc: Chunming Zhou <david1.zhou@amd.com>
 Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
 Cc: Peter Wu <peter@lekensteyn.nl>
 Cc: Haneen Mohammed <hamohammed.sa@gmail.com>
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Merge tag 'drm-misc-next-2018-09-13' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 4.20:

UAPI Changes:
- Add host endian variants for the most common formats (Gerd)
- Fail ADDFB2 for big-endian drivers that don't advertise BE quirk (Gerd)
- clear smem_start in fbdev for drm drivers to avoid leaking fb addr (Daniel)

Cross-subsystem Changes:

Core Changes:
- fix drm_mode_addfb() on big endian machines (Gerd)
- add timeline point to syncobj find+replace (Chunming)
- more drmP.h removal effort (Daniel)
- split uapi portions of drm_atomic.c into drm_atomic_uapi.c (Daniel)

Driver Changes:
- bochs: Convert open-coded portions to use helpers (Peter)
- vkms: Add cursor support (Haneen)
- udmabuf: Lots of fixups (mostly cosmetic afaict) (Gerd)
- qxl: Convert to use fbdev helper (Peter)

Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Chunming Zhou <david1.zhou@amd.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Peter Wu <peter@lekensteyn.nl>
Cc: Haneen Mohammed <hamohammed.sa@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20180913130254.GA156437@art_vandelay
2018-09-14 09:43:16 +10:00
Peter Rosin
169cc4c7a1 drm: bridge: document bridge attach/detach imbalance
Since commit 4a878c03d5 ("drm: bridge: Detach bridge from encoder at
encoder cleanup time"), it is generally no longer correct to detach bridges
from encoders manually. Document that.

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180806061910.29914-3-peda@axentia.se
2018-09-13 11:28:12 +02:00
Marc Zyngier
eb1d23d71e drm/bridge: analogix_dp: Downgrade "Link Training" messages to dev_dbg
The Analogix DP bridge driver is pretty verbose, and outputs
things like

[  619.414067] rockchip-dp ff970000.edp: Link Training Clock Recovery success
[  619.429233] rockchip-dp ff970000.edp: Link Training success!

each time the display gets unblanked. While it is good to know
that the device is behaving correctly, users already know that
because they can see some video output.

Let's keep these messages for cases where we need to actually
debug the driver (we have dynamic debug to enable them at runtime
if need be), and let's keep the kernel quiet otherwise.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180805172857.2517-1-marc.zyngier@arm.com
2018-09-13 10:47:17 +02:00
Maxime Ripard
185e0bebb4
drm/sun4i: fix build failure with CONFIG_DRM_SUN8I_MIXER=m
Having DRM_SUN4I built-in but DRM_SUN8I_MIXER as a loadable module results in
a link error, as we try to access a symbol from the sun8i_tcon_top.ko module:

ERROR: "sun8i_tcon_top_de_config" [drivers/gpu/drm/sun4i/sun4i-tcon.ko] undefined!
ERROR: "sun8i_tcon_top_set_hdmi_src" [drivers/gpu/drm/sun4i/sun4i-tcon.ko] undefined!
ERROR: "sun8i_tcon_top_of_table" [drivers/gpu/drm/sun4i/sun4i-tcon.ko] undefined!

This solves the problem by adding a silent symbol for the tcon_top module,
building it as a separate module in exactly the cases that we need it,
but in a way that it is reachable by the other modules.

Fixes: cf77d79b4e ("drm/sun4i: tcon: Add another way for matching mixers with tcon")
Fixes: 0305189afb ("drm/sun4i: tcon: Add support for R40 TCON")
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Matt Hart <matthew.hart@linaro.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180911113325.11024-1-maxime.ripard@bootlin.com
2018-09-12 14:50:34 +02:00
Peter Wu
bf8744e40c qxl: refactor to use drm_fb_helper_fbdev_setup
Lots of code can be removed by relying on fb-helper:
- "struct drm_framebuffer" moves to fb_helper.fb.
- "struct drm_gem_object" moves to fb_helper.obj[0].
- "struct qxl_device" can be inferred as drm_fb_helper is embedded.
- qxl_user_framebuffer_create -> drm_gem_fb_create.
- qxl_user_framebuffer_destroy -> drm_gem_fb_destroy.
- qxl_fbdev_destroy -> drm_fb_helper_fbdev_teardown + vfree(shadow).

Remove unused code:
- qxl_fbdev_qobj_is_fb, qxl_fbdev_set_suspend.
- Unused fields of qxl_fbdev: delayed_ops, delayed_ops_lock, size.

Misc notes:
- The dirty callback is preserved as it is necessary to trigger update
  commands in the hw (the screen stays black otherwise).
- No idea when .create_handle in drm_framebuffer_funcs is used, but use
  the same drm_gem_fb_create_handle to match drm_gem_fb_funcs.
- I don't know why qxl_fb_find_or_create_single used to check for an
  existing framebuffer and removed that check to match other drivers.
- Use of drm_fb_helper_fbdev_teardown also requires "info->fbdefio" to
  be dynamically allocated. Replace the existing defio config by
  drm_fb_helper_defio_init to accomodate this.

Testing results: startx with fbdev, modesetting and qxl all seems to
work. Tested also with CONFIG_DRM_FBDEV_EMULATION=n, fbdev obviously
fails but others are fine. QEMU -spice and QEMU -spice with vdagent and
multiple (resized) displays (via remote-viewer) also works.
unbind vtconsole and rmmod has *not* regressed (i.e. it still trips on a
use-after-free in qxl_check_idle via qxl_ttm_fini).

Ideally setup/teardown is replaced by drm_fbdev_generic_setup as that
would result in further code reduction, improve error handling (like not
leaking shadow memory), but unfortunately QXL has no implementation for
qxl_gem_prime_vmap.

Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Link: http://patchwork.freedesktop.org/patch/msgid/20180910132156.23201-1-peter@lekensteyn.nl
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-09-12 09:01:18 +02:00
Gerd Hoffmann
33f35429fc udmabuf: use sizeof(variable) instead of sizeof(type)
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20180911134216.9760-13-kraxel@redhat.com
2018-09-12 08:21:33 +02:00
Gerd Hoffmann
7b26e4e211 udmabuf: drop WARN_ON() check.
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20180911134216.9760-12-kraxel@redhat.com
2018-09-12 08:21:32 +02:00
Gerd Hoffmann
52499d9cdd udmabuf: use ENOTTY for invalid ioctls
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180911134216.9760-11-kraxel@redhat.com
2018-09-12 08:21:32 +02:00
Gerd Hoffmann
7a1c67d780 udmabuf: use EBADFD in case we didn't got a memfd
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180911134216.9760-10-kraxel@redhat.com
2018-09-12 08:21:31 +02:00
Gerd Hoffmann
0d17455ca8 udmabuf: improve udmabuf_create error handling
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180911134216.9760-9-kraxel@redhat.com
2018-09-12 08:21:31 +02:00
Gerd Hoffmann
dc4716d751 udmabuf: rework limits
Create variable for the list length limit.  Serves as documentation,
also allows to make it a module parameter if needed.

Also add a total size limit.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180911134216.9760-8-kraxel@redhat.com
2018-09-12 08:21:30 +02:00
Gerd Hoffmann
68d2f70efe udmabuf: add MEMFD_CREATE dependency
udmabuf builds without it, but if userspace can not create memfd
handles in the first place it is rather pointless to include it,
except for test builds.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180911134216.9760-7-kraxel@redhat.com
2018-09-12 08:21:30 +02:00
Gerd Hoffmann
dc254553f2 udmabuf: constify udmabuf_create args
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180911134216.9760-6-kraxel@redhat.com
2018-09-12 08:21:29 +02:00
Gerd Hoffmann
a34852891b udmabuf: constify udmabuf_ops
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180911134216.9760-5-kraxel@redhat.com
2018-09-12 08:21:29 +02:00
Gerd Hoffmann
b35f57c437 udmabuf: use pgoff_t for pagecount
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180911134216.9760-4-kraxel@redhat.com
2018-09-12 08:21:28 +02:00
Gerd Hoffmann
a3e722dad0 udmabuf: improve map_udmabuf error handling
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180911134216.9760-3-kraxel@redhat.com
2018-09-12 08:21:28 +02:00
Gerd Hoffmann
913965c42c udmabuf: sort headers, drop uapi/ path prefix
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180911134216.9760-2-kraxel@redhat.com
2018-09-12 08:21:27 +02:00
Haneen Mohammed
ad9ff96f65 drm/vkms: Add kerneldoc entry
Add an initial kerneldoc entry for vkms with a todo list.

Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
[danvet: Keep the todo.rst entry to point at the vkms docs instead.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180907174136.GA2648@haneenDRM
2018-09-11 20:06:35 +02:00
Haneen Mohammed
b8789ea71d drm/vkms: Enable/Disable cursor support with module option
Cursor support is not complete yet. Add module option 'enable_cursor'
to enable/disable cursor support which is used for testing currently.

Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/b47f44f518d3c9858f1469193f1136e0c490060b.1536210181.git.hamohammed.sa@gmail.com
2018-09-11 19:57:32 +02:00
Haneen Mohammed
db7f419c06 drm/vkms: Compute CRC with Cursor Plane
This patch compute CRC for output frame with cursor and primary plane.
Blend cursor with primary plane and compute CRC on the resulted frame.

This currently passes cursor-size-change, and cursor-64x64-[onscreen,
offscreen, sliding, random, dpms, rapid-movement] from igt
kms_cursor_crc tests.

Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/b1749f5c90da5721a481f12740e2e370edb4a752.1536210181.git.hamohammed.sa@gmail.com
2018-09-11 19:56:19 +02:00
Haneen Mohammed
c27d931d40 drm/vkms: Add cursor plane support
Add cursor plane support and update vkms_plane_atomic_check to enable
positioning cursor plane.

Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/c69078820eacf3246fa77beb0c6227b692cc5e82.1536210181.git.hamohammed.sa@gmail.com
2018-09-11 19:56:13 +02:00
Daniel Vetter
6be8f3bd2c drm/fb: Stop leaking physical address
For buffer sharing, use dma-buf instead. We can't set smem_start to 0
unconditionally since that's used by the fbdev mmap default
implementation. And we have plenty of userspace which would like to
keep that working.

This might break legit userspace - if it does we need to look at a
case-by-cases basis how to handle that. Worst case I expect overrides
for only specific drivers, since anything remotely modern should be
using dma-buf/prime now (which is about 7 years old now for DRM
drivers).

This issue was uncovered because Noralf's rework to implement a
generic fb_probe also implements it's own fb_mmap callback. Which
means smem_start didn't have to be set anymore, which blew up some
blob in userspace rather badly.

Acked-by: Sean Paul <seanpaul@chromium.org>
Cc: Gustavo Padovan <gustavo@padovan.org>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Sean Paul <sean@poorly.run>
Cc: David Airlie <airlied@linux.ie>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180822085405.10787-4-daniel.vetter@ffwll.ch
2018-09-11 14:11:54 +02:00
Daniel Vetter
da6c7707ca fbdev: Add FBINFO_HIDE_SMEM_START flag
DRM drivers really, really, really don't want random userspace to
share buffer behind it's back, bypassing the dma-buf buffer sharing
machanism. For that reason we've ruthlessly rejected any IOCTL
exposing the physical address of any graphics buffer.

Unfortunately fbdev comes with that built-in. We could just set
smem_start to 0, but that means we'd have to hand-roll our own fb_mmap
implementation. For good reasons many drivers do that, but
smem_start/length is still super convenient.

Hence instead just stop the leak in the ioctl, to keep fb mmap working
as-is. A second patch will set this flag for all drm drivers.

Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: linux-fbdev@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180822085405.10787-3-daniel.vetter@ffwll.ch
2018-09-11 14:11:54 +02:00
Daniel Vetter
8d7fc2994f vt: Remove vc_panic_force_write
It was only used by the panic support in fbcon, which is now gone.
Remove this now dead code too.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Joe Perches <joe@perches.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Meng Xu <mengxu.gatech@gmail.com>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Thomas Meyer <thomas@m3y3r.de>
Cc: Mike Frysinger <vapier@chromium.org>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Thierry Reding <treding@nvidia.com>
Cc: David Lechner <david@lechnology.com>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180822085405.10787-2-daniel.vetter@ffwll.ch
2018-09-11 14:11:51 +02:00
Daniel Vetter
04cfcc7ab3 fbdev: Drop FBINFO_CAN_FORCE_OUTPUT flag
This was only added for the drm's fbdev emulation support, so that it
would try harder to show the Oops.

Unfortunately this never really worked reliably, and in practice ended
up pushing the real Oops off the screen due to plentyfull locking,
sleep-while-atomic and other issues. So we removed all that support
from the fbdev emulation a while back. Aside: We've also removed the
kgdb support, for similar reasons.

Since it's such a small patch I figured I don't split this up into the
usual 3-phase removal.

Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Alexander Kapshuk <alexander.kapshuk@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Thierry Reding <treding@nvidia.com>
Cc: David Lechner <david@lechnology.com>
Cc: nouveau@lists.freedesktop.org
Cc: linux-fbdev@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180822085405.10787-1-daniel.vetter@ffwll.ch
2018-09-11 14:11:01 +02:00
Alexandru Gheorghe
1f86fa1534 drm: Clarify DRM_MODE_REFLECT_X/Y documentation
DRM_MODE_REFLECT_X and DRM_MODE_REFLECT_Y meaning seems a bit unclear
to me, so try to clarify that with a bit of ascii graphics.

Changes since v1:
  - Move the ascii graphics in the kerneldoc where all plane
    properties are already documented and make sure it's properly
    rendered, suggestested by Daniel Vetter.

Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180910172946.18539-1-alexandru-cosmin.gheorghe@arm.com
2018-09-11 11:21:30 +01:00
YueHaibing
5248092ea4 drm: Remove set but not used variable 'config'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/drm_plane.c: In function 'drm_mode_getplane_res':
drivers/gpu/drm/drm_plane.c:475:26: warning:
 variable 'config' set but not used [-Wunused-but-set-variable]

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1536646814-186429-1-git-send-email-yuehaibing@huawei.com
2018-09-11 09:34:27 +02:00
Dave Airlie
b1c1566822 Merge tag 'drm-intel-next-2018-09-06-2' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
Merge tag 'gvt-next-2018-09-04'
drm-intel-next-2018-09-06-1:
UAPI Changes:
- GGTT coherency GETPARAM: GGTT has turned out to be non-coherent for some
  platforms, which we've failed to communicate to userspace so far. SNA was
  modified to do extra flushing on non-coherent GGTT access, while Mesa will
  mitigate by always requiring WC mapping (which is non-coherent anyway).
- Neuter Resource Streamer uAPI: There never really were users for the feature,
  so neuter it while keeping the interface bits for compatibility. This is a
  long due item from past.

Cross-subsystem Changes:
- Backmerge of branch drm-next-4.19 for DP_DPCD_REV_14 changes

Core Changes:
- None

Driver Changes:

- A load of Icelake (ICL) enabling patches (Paulo, Manasi)
- Enabled full PPGTT for IVB,VLV and HSW (Chris)
- Bugzilla #107113: Distribute DDB based on display resolutions (Mahesh)
- Bugzillas #100023,#107476,#94921: Support limited range DP displays (Jani)
- Bugzilla #107503: Increase LSPCON timeout (Fredrik)
- Avoid boosting GPU due to an occasional stall in interactive workloads (Chris)
- Apply GGTT coherency W/A only for affected systems instead of all (Chris)
- Fix for infinite link training loop for faulty USB-C MST hubs (Nathan)
- Keep KMS functional on Gen4 and earlier when GPU is wedged (Chris)
- Stop holding ppGTT reference from closed VMAs (Chris)
- Clear error registers after error capture (Lionel)
- Various Icelake fixes (Anusha, Jyoti, Ville, Tvrtko)
- Add missing Coffeelake (CFL) PCI IDs (Rodrigo)
- Flush execlists tasklet directly from reset-finish (Chris)
- Fix LPE audio runtime PM (Chris)
- Fix detection of out of range surface positions (GLK/CNL) (Ville)
- Remove wait-for-idle for PSR2 (Dhinakaran)
- Power down existing display hardware resources when display is disabled (Chris)
- Don't allow runtime power management if RC6 doesn't exist (Chris)
- Add debugging checks for runtime power management paths (Imre)
- Increase symmetry in display power init/fini paths (Imre)
- Isolate GVT specific macros from i915_reg.h (Lucas)
- Increase symmetry in power management enable/disable paths (Chris)
- Increase IP disable timeout to 100 ms to avoid DRM_ERROR (Imre)
- Fix memory leak from HDMI HDCP write function (Brian, Rodrigo)
- Reject Y/Yf tiling on interlaced modes (Ville)
- Use a cached mapping for the physical HWS on older gens (Chris)
- Force slow path of writing relocations to buffer if unable to write to userspace (Chris)
- Do a full device reset after being wedged (Chris)
- Keep forcewake counts over reset (in case of debugfs user) (Imre, Chris)
- Avoid false-positive errors from power wells during init (Imre)
- Reset engines forcibly in exchange of declaring whole device wedged (Mika)
- Reduce context HW ID lifetime in preparation for Icelake (Chris)
- Attempt to recover from module load failures (Chris)
- Keep select interrupts over a reset to avoid missing/losing them (Chris)
- GuC submission backend improvements (Jakub)
- Terminate context images with BB_END (Chris, Lionel)
- Make GCC evaluate GGTT view struct size assertions again (Ville)
- Add selftest to exercise suspend/hibernate code-paths for GEM (Chris)
- Use a full emulation of a user ppgtt context in selftests (Chris)
- Exercise resetting in the middle of a wait-on-fence in selftests (Chris)
- Fix coherency issues on selftests for Baytrail (Chris)
- Various other GEM fixes / self-test updates (Chris, Matt)
- GuC doorbell self-tests (Daniele)
- PSR mode control through debugfs for IGTs (Maarten)
- Degrade expected WM latency errors to DRM_DEBUG_KMS (Chris)
- Cope with errors better in MST link training (Dhinakaran)
- Fix WARN on KBL external displays (Azhar)
- Power well code cleanups (Imre)
- Fixes to PSR debugging (Dhinakaran)
- Make forcewake errors louder for easier catching in CI (WARNs) (Chris)
- Fortify tiling code against programmer errors (Chris)
- Bunch of fixes for CI exposed corner cases (multiple authors, mostly Chris)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180907105446.GA22860@jlahtine-desk.ger.corp.intel.com
2018-09-11 11:53:12 +10:00
Marc Zyngier
7f3ef5dedb drm/rockchip: Allow driver to be shutdown on reboot/kexec
Leaving the DRM driver enabled on reboot or kexec has the annoying
effect of leaving the display generating transactions whilst the
IOMMU has been shut down.

In turn, the IOMMU driver (which shares its interrupt line with
the VOP) starts warning either on shutdown or when entering the
secondary kernel in the kexec case (nothing is expected on that
front).

A cheap way of ensuring that things are nicely shut down is to
register a shutdown callback in the platform driver.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Tested-by: Vicente Bergas <vicencb@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20180805124807.18169-1-marc.zyngier@arm.com
Cc: stable@vger.kernel.org
2018-09-10 10:52:27 +02:00
Peter Wu
c10802b684 drm/fb-helper: improve documentation and print warnings
Clarify the relation between drm_fb_helper_fbdev_setup/teardown. Clarify
requirements for the new generic fbdev emulation API and log some more
details in case the driver does something wrong. Fix related typos.

Cc: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180906221810.20170-5-peter@lekensteyn.nl
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-09-10 07:10:39 +02:00
Peter Wu
7780eb9ce8 bochs: convert to drm_dev_register
The drm_get_pci_dev API is deprecated, replace it by drm_dev_register.

Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Link: http://patchwork.freedesktop.org/patch/msgid/20180906221810.20170-4-peter@lekensteyn.nl
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-09-10 07:10:38 +02:00
Peter Wu
df2052cc92 bochs: convert to drm_fb_helper_fbdev_setup/teardown
Currently unloading bochs_drm (after unbinding the vtconsole) results in
a warning about a leaked connector:

    [drm:drm_mode_config_cleanup] *ERROR* connector Virtual-3 leaked!

While investigating a potential fix I noticed that a lot of open-coded
functionality is already implemented elsewhere, so start converting it:
bochs_fbdev_init -> drm_fb_helper_fbdev_setup: trivial (similar impl).
bochs_fbdev_fini -> drm_fb_helper_fbdev_teardown: requires unembedding
"struct drm_framebuffer" from "struct bochs_framebuffer".

Unembedding drm_framebuffer is made easy using drm_gem_fbdev_fb_create
which can replace bochs_fbdev_destroy and custom routines in bochs_mm.c.
For this to work, the GEM object is moved into "drm_framebuffer". After
that, "bochs_framebuffer" is no longer needed and therefore removed.

Remove the unused "size" and "initialized" fields from fb, the latter is
not necessary as drm_fb_helper_fbdev_teardown can be called even if
bochsfb_create fails. This theory was tested by returning early and
late (just before drm_gem_fbdev_fb_create). Both scenarios fail
gracefully although the latter seems to leak the object from
bochsfb_create_object (not a regression).

Guess on the reason for the encoder leak: drm_framebuffer_cleanup was
previously used, but did not destroy much. drm_fb_helper_fbdev_teardown
is now used and calls drm_framebuffer_remove which does a bit more work.

Tested with 'echo 0 > /sys/class/vtconsole/vtcon1/bind; rmmod bochs_drm'
and also with Xorg + fbdev (startx -> xterm). The latter triggered a
warning in ttm_bo_vm_open that existed before, see
https://lkml.kernel.org/r/1464000533-13140-4-git-send-email-mstaudt@suse.de

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Link: http://patchwork.freedesktop.org/patch/msgid/20180906221810.20170-3-peter@lekensteyn.nl
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-09-10 07:10:38 +02:00
Peter Wu
70c0ef7bd3 bochs: use drm_fb_helper_set_suspend_unlocked in suspend/resume
The "initialized" member is going away. suspend/resume still works (even
if bochsfb_create is forced to fail).

Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Link: http://patchwork.freedesktop.org/patch/msgid/20180906221810.20170-2-peter@lekensteyn.nl
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-09-10 07:10:37 +02:00
Gerd Hoffmann
eae06120f1 drm: refuse ADDFB2 ioctl for broken bigendian drivers
Drivers must set the quirk_addfb_prefer_host_byte_order quirk to make
the drm_mode_addfb() compat code work correctly on bigendian machines.

If they don't they interpret pixel_format values incorrectly for bug
compatibility, which in turn implies the ADDFB2 ioctl does not work
correctly then.  So block it to make userspace fallback to ADDFB.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180907073213.20410-1-kraxel@redhat.com
2018-09-10 07:10:36 +02:00
YueHaibing
ea4584c2f2 drm/virtio: Remove set but not used variable 'bo'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/virtio/virtgpu_display.c: In function 'virtio_gpu_framebuffer_init':
drivers/gpu/drm/virtio/virtgpu_display.c:78:28: warning:
 variable 'bo' set but not used [-Wunused-but-set-variable]
  struct virtio_gpu_object *bo;
                            ^

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1536285837-150460-1-git-send-email-yuehaibing@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-09-10 07:10:36 +02:00
Daniel Vetter
72fdb40c1a drm: extract drm_atomic_uapi.c
This leaves all the commit/check and state handling in drm_atomic.c,
while pulling all the uapi glue and the huge ioctl itself into a
seprate file.

This seems to almost perfectly split the rather big drm_atomic.c file
into 2 equal sizes.

Also adjust the kerneldoc and type a very terse overview text.

v2: Rebase.

v3: Fix tiny typo.

v4:
- Fixup armada, newly converted atomic driver hooray!
- Fixup msm/dpu1, newly added too.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Gustavo Padovan <gustavo@padovan.org>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: intel-gfx@lists.freedesktop.org
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180905135711.28370-7-daniel.vetter@ffwll.ch
2018-09-09 14:19:18 +02:00
Daniel Vetter
2ec04b33a9 drm: Update todo.rst
- drmP.h is now fully split up.
- vkms is happening (and will gain its own todo and docs under a new
  vkms.rst file real soon)
- legacy cruft is completely hidden now, drm_vblank.c is split out
  from drm_irq.c now. I've decided to drop the task to split out
  drm_legacy.ko, partially because Dave already rejected a patch to
  hide the old dri1 drivers better. Current state feels good enough to
  me.
- best_encoder atomic cleanup is done (it's now the default, not even
  exported anymore)
- bunch of smaller things

v2:
- Explain why the drm_legacy.ko task is dropped (Emil).
- typos (Sam).

v3: Fix typo (Ilia)

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Cc: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Gustavo Padovan <gustavo@padovan.org>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: David Airlie <airlied@linux.ie>
Link: https://patchwork.freedesktop.org/patch/msgid/20180905181509.19530-1-daniel.vetter@ffwll.ch
2018-09-09 14:19:18 +02:00
Daniel Vetter
d86552efe1 drm/atomic: trim driver interface/docs
Remove the kerneldoc and EXPORT_SYMBOL which aren't used and really
shouldn't ever be used by drivers directly.

Unfortunately this means we need to move the set_writeback_fb function
around to avoid a forward decl.

Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Gustavo Padovan <gustavo@padovan.org>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180905135711.28370-5-daniel.vetter@ffwll.ch
2018-09-09 14:19:18 +02:00
Daniel Vetter
e6120d6493 drm: drop drmP.h include from drm_crtc.c
This is starting to become easy!

v2: Compiles now, with drm/drm_util.h extracted.

v3: Fix up commit message (Sam Ravnborg)

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180905135711.28370-4-daniel.vetter@ffwll.ch
2018-09-09 14:19:18 +02:00
Daniel Vetter
b88ac00565 drm: drop drmP.h include from drm_plane.c
Just a bit of missing includes and pre declarations.

v2: Compiles now, with drm/drm_util.h extracted.

v3: Rebase

v3: Fix up commit message (Sam Ravnborg)

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180905135711.28370-3-daniel.vetter@ffwll.ch
2018-09-09 14:19:17 +02:00
Daniel Vetter
99f45e32cd drm: Drop drmP.h from drm_connector.c
Only needed minimal changes in drm_internal.h (for the drm_ioctl_t
type and a few forward declarations), plus a few missing includes in
drm_connector.c.

Yay, the last stage of the drm header cleanup can finally commence!

v2: Compiles now, with drm/drm_util.h extracted.

v3: Fix up commit message (Sam Ravnborg)

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180905135711.28370-2-daniel.vetter@ffwll.ch
2018-09-09 14:19:17 +02:00
Daniel Vetter
d78aa65067 drm: Add drm/drm_util.h header file
We have a bunch of neat little macros all over the place which should
move to kernel.h. But some of them died in bikesheds on lkml, and we
need a decent home for them.

Start out by moving the for_each_if macro there.

v2: Rename to drm_util.h instead (Dave&Sean)

Cc: Sean Paul <seanpaul@chromium.org>
Acked-by: Sean Paul <seanpaul@chromium.org>
Cc: Dave Airlie <airlied@gmail.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180905135711.28370-1-daniel.vetter@ffwll.ch
2018-09-09 14:18:11 +02:00
Michał Mirosław
c9527f0de5 drm/fb-helper: document remove*_conflicting_framebuffers()
Copy remove*_conflicting_framebuffers() kerneldocs from fbdev code
to make DRM developers' life easier.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/f70c1cc4a4f77dd9bad58fc7ca344609c0a91fa7.1536342228.git.mirq-linux@rere.qmqm.pl
2018-09-07 22:07:49 +02:00
Michał Mirosław
d3147adcfd fbdev: fix kerneldoc
As noticed by kbuild test robot <lkp@intel.com>,
remove_conflicting_pci_framebuffers()'s second argument
is called res_id not resource_id. Fix this.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/38ca9044455a33e398b45e0281643cc24da3c2fc.1536342224.git.mirq-linux@rere.qmqm.pl
2018-09-07 21:49:13 +02:00