The data structure |struct drm_gem_vram_object| and its helpers replace
|struct mgag200_bo|. It's the same implementation; except for the type
names.
v4:
* cleanups from checkpatch.pl
* select config option DRM_VRAM_HELPER
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-15-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The data structure |struct drm_vram_mm| and its helpers replace bochs'
TTM-based memory manager. It's the same implementation; except for the
type names.
v5:
* set .llseek via DRM_VRAM_MM_FILE_OPERATIONS
v4:
* don't select DRM_TTM or DRM_VRAM_MM_HELPER
v3:
* use drm_gem_vram_mm_funcs
* convert driver to drm_device-based instance
v2:
* implement bochs_mmap() with drm_vram_mm_mmap()
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-14-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The data structure |struct drm_gem_vram_object| and its helpers replace
|struct bochs_bo|. It's the same implementation; except for the type
names.
v5:
* use PRIME helpers from GEM VRAM
v4:
* cleanups from checkpatch.pl
* select config option DRM_VRAM_HELPER
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-13-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The AST driver establishes several memory mappings for frame buffers
and cursors. This patch converts the driver to use the equivalent
drm_gem_vram_kmap() functions. It removes the dependencies on TTM
and cleans up the code.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-12-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The data structure |struct drm_vram_mm| and its helpers replace ast's
TTM-based memory manager. It's the same implementation; except for the
type names.
v4:
* don't select DRM_TTM or DRM_VRAM_MM_HELPER
v3:
* use drm_gem_vram_mm_funcs
* convert driver to drm_device-based instance
v2:
* implement ast_mmap() with drm_vram_mm_mmap()
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-11-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The data structure |struct drm_gem_vram_object| and its helpers replace
|struct ast_bo|. It's the same implementation; except for the type names.
v4:
* cleanups from checkpatch.pl
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-10-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
There's now a pointer to struct drm_vram_mm stored in struct drm_device.
DRM drivers that use VRAM MM should use this field to refer to their
instance of the data structure. Appropriate helpers are now provided as
well.
Adding struct drm_vram_mm to struct drm_device further avoids wrappers
and boilerplate code in drivers. This patch implements default functions
for callbacks in struct drm_driver and struct file_operations that use
the struct drm_vram_mm stored in struct drm_device. Drivers that need to
provide their own implementations can still do so.
The patch also adds documentation for the VRAM helper library in general.
v5:
* set .llseek to no_llseek() from DRM_VRAM_MM_FILE_OPERATIONS
v4:
* cleanups from checkpatch.pl
* document VRAM helper library
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-9-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The VRAM MM memory manager is a helper library that manages dedicated video
memory of simple framebuffer devices. It is supported to be used with
struct drm_gem_vram_object, but does not depend on it.
The implementation is based on the respective code from ast, bochs, and
mgag200. These drivers share the exact same implementation except for type
names. The helpers are currently build with TTM. This may change in future
revisions.
v4:
* cleanups from checkpatch.pl
v2:
* renamed to struct drm_vram_mm
* add drm_vram_mm_mmap() helper
* documentation fixes
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-7-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
These basic helper functions for GEM VRAM allow for pinning and mapping
GEM VRAM objects via the PRIME interfaces. It's not a full implementation,
but complete enough for generic fbcon.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-6-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The helper function drm_gem_vram_fill_create_dumb() implements most of
struct drm_driver.dumb_create() for GEM-VRAM buffer objects. It's not a
full implementation of the callback, as several driver-specific parameters
are still required.
v4:
* cleanups from checkpatch.pl
v2:
* documentation fixes
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-5-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The provided helpers can be used for the respective callback functions
in |struct drm_driver|.
v4:
* cleanups from checkpatch.pl
v2:
* documentation fixes
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-4-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The provided helpers can be used for the respective callback functions
in |struct ttm_bo_driver|.
v2:
* drm_is_gem_vram() is now a private function
* documentation fixes
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-3-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The type |struct drm_gem_vram_object| implements a GEM object for simple
framebuffer devices with dedicated video memory. The BO is either located
in VRAM or system memory.
The implementation has been created from the respective code in ast,
bochs and mgag200. These drivers copy their implementation from each
other; except for the names of several data types. The helpers are
currently build with TTM, but this is considered an implementation
detail and may change in future updates.
v5:
* do WARN_ON_ONCE for pin-count mismatches
* allocate only 2 entries in placements array
v4:
* cleanups from checkpatch.pl
* removed several fixed-size types from interfaces
* DRM_VRAM_HELPER now selects DRM_TTM
* remove separate config option for GEM VRAM
v2:
* rename to |struct drm_gem_vram_object|
* move drm_is_gem_ttm() to a later patch in the series
* add drm_gem_vram_kmap_at()
* return is_iomem from kmap functions
* redefine TTM placement flags for public interface
* documentation fixes
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-2-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The values are already present in the modeset.
This is done in preparation for the removal of struct drm_fb_helper_crtc.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190506180139.6913-5-noralf@tronnes.org
Getting rotation info is cheap so we can do it on demand.
This is done in preparation for the removal of struct drm_fb_helper_crtc.
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190506180139.6913-4-noralf@tronnes.org
drm_fb_helper_is_bound() is used to check if DRM userspace is in control.
This is done by looking at the fb on the primary plane. By the time
fb-helper gets around to committing, it's possible that the facts have
changed.
Avoid this race by holding the drm_device->master_mutex lock while
committing. When DRM userspace does its first open, it will now wait
until fb-helper is done. The helper will stay away if there's a master.
Two igt tests fail with the new 'bail out if master' rule. Work around
this by relaxing this rule for drm_fb_helper_restore_fbdev_mode_unlocked()
until the tests have been fixed. Add todo entry for this.
Locking rule: Always take the fb-helper lock first.
v5: drm_fb_helper_restore_fbdev_mode_unlocked(): Use
restore_fbdev_mode_force()
v2:
- Remove drm_fb_helper_is_bound() (Daniel Vetter)
- No need to check fb_helper->dev->master in
drm_fb_helper_single_fb_probe(), restore_fbdev_mode() has the check.
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190506180139.6913-3-noralf@tronnes.org
Move the open helper around to avoid the forward decl, and give
drm_setup a drm_legacy_ prefix since it's all legacy stuff in there.
v2: Move drm_legacy_setup into drm_legacy_misc.c (Chris). The
counterpart in the form of drm_legacy_dev_reinit is there already too,
plus it fits perfectly into Dave's work of making DRIVER_LEGACY code
compile-time optional.
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190502135603.20413-1-daniel.vetter@ffwll.ch
- More panfrost fixes that went directly in -misc-next-fixes (various)
- Fix searchpaths during build (Masahiro)
- msm patch to fix the driver for chips without zap shader (Rob)
- Fix freeing imported buffers in drm_gem_cma_free_object() (Noralf)
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Rob Clark <robdclark@chromium.org>
Cc: Noralf Trønnes <noralf@tronnes.org>
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Merge tag 'drm-misc-next-fixes-2019-05-08' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
- A handful of fixes from -next that just missed feature freeze
- More panfrost fixes that went directly in -misc-next-fixes (various)
- Fix searchpaths during build (Masahiro)
- msm patch to fix the driver for chips without zap shader (Rob)
- Fix freeing imported buffers in drm_gem_cma_free_object() (Noralf)
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Rob Clark <robdclark@chromium.org>
Cc: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20190508205153.GA91135@art_vandelay
This is the 2nd pull request for the malidp-next. The new patches add
additional support for Arm Mali D71 so that it can now be enabled
correctly and brought up on any SoC that contains the IP. From now on
we will start focusing on adding writeback, scaling and other useful
features to bring the driver to the same level of maturity as mali-dp.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Liviu Dudau <Liviu.Dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190507103712.GJ15144@e110455-lin.cambridge.arm.com
Depending on platform firmware, a zap shader may not be required to take
the GPU out of secure mode on boot, in which case we can just write
RBBM_SECVID_TRUST_CNTL directly. Which we *mostly* handled, but missed
clearing 'ret' resulting that hw_init() returned an error on these
devices.
Fixes: abccb9fe32 ("drm/msm/a6xx: Add zap shader load")
Acked-by: Jordan Crouse <jcrouse@codeaurora.org>
Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190508130726.27557-1-robdclark@gmail.com
The logic for freeing an imported buffer with a virtual address is
broken. It will free the buffer instead of unmapping the dma buf.
Fix by reversing the if ladder and first check if the buffer is imported.
Fixes: b9068cde51 ("drm/cma-helper: Add DRM_GEM_CMA_VMAP_DRIVER_OPS")
Cc: stable@vger.kernel.org
Reported-by: "Li, Tingqian" <tingqian.li@intel.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190426124753.53722-1-noralf@tronnes.org
HD702E lcd is FriendlyELEC developed eDP LCD panel with 800x1280
resolution. It has built in Goodix, GT9271 captive touchscreen
with backlight adjustable via PWM.
Add support for it.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190507130708.11255-2-jagan@amarulasolutions.com
HD702E lcd is FriendlyELEC developed eDP LCD panel with 800x1280
resolution. It has built in Goodix, GT9271 captive touchscreen
with backlight adjustable via PWM.
Add dt-bindings documentation for it.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190507130708.11255-1-jagan@amarulasolutions.com
As discussed with Nicholas and Daniel Vetter (patchwork
link to discussion below), the VRR timestamping behaviour
produced utterly useless and bogus vblank/pageflip
timestamps. We have found a way to fix this and provide
sane behaviour.
As of Linux 5.2, the amdgpu driver will be able to
provide exactly the same vblank / pageflip timestamp
semantic in variable refresh rate mode as in standard
fixed refresh rate mode. This is achieved by deferring
core vblank handling (drm_crtc_handle_vblank()) until
the end of front porch, and also defer the sending of
pageflip completion events until end of front porch,
when we can safely compute correct pageflip/vblank
timestamps.
The same approach will be possible for other VRR
capable kms drivers, so we can actually have sane
and useful timestamps in VRR mode.
This patch removes the section of the docs that
describes the broken timestamp behaviour present
in Linux 5.0/5.1.
Fixes: ab7a664f7a ("drm: Document variable refresh properties")
Link: https://patchwork.freedesktop.org/patch/285333/
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190418060157.18968-1-mario.kleiner.de@gmail.com
Cc: stable@vger.kernel.org
Fix the kbuild test rebot reported warnings:
- symbol was not declared. Should it be static?
- missing braces around initializer
Depends on:
- https://patchwork.freedesktop.org/series/58976/
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
CHIP set bus_width according to the HW configuration, and CORE will use
it as buffer alignment.
v2: Rebase
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Add two sysfs node: core_id, config_id, user can read them to fetch the
HW product information.
Also, use memset to initialize config_id, rather than quirky C syntax.
Courtesy of Nathan Chancellor <natechancellor@gmail.com>.
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
[Merged Nathan's patch that uses memset to initialize config_id into
original patch as the fixes tag changed due to rebase, reworded the
commit to reference the merged patch]
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
It's mandatory and considered core state since ioctls rely on this
working.
Thanks to Laurent for pointing out this gap.
v2: Clarify to "atomic drivers" only.
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Sean Paul <sean@poorly.run>
Acked-by: Sean Paul <sean@poorly.run>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190506144629.5976-1-daniel.vetter@ffwll.ch
Remove duplicate headers which are included twice.
Signed-off-by: Jagadeesh Pagadala <jagdsh.linux@gmail.com>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Dave Airlie <airlied@linux.ie>
[danvet: drop changes to panel-raspberrypi, they break the build]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1556906293-128921-1-git-send-email-jagdsh.linux@gmail.com
virtio_gpu_fence_emit() always returns 0, since it
has no error paths.
Consequently no calls for virtio_gpu_fence_emit()
use the return value, and it can be removed.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190506091034.30289-1-robert.foss@collabora.com
Suggested-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
It was changed to GFP_ATOMIC in commit ec2f0577c (add & use
virtio_gpu_queue_fenced_ctrl_buffer) because the allocation happened
with a spinlock held. That was no longer true after commit
9fdd90c0f (add virtio_gpu_alloc_fence()).
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190429221021.159784-1-olvaffe@gmail.com
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Gustavo Padovan <gustavo.padovan@collabora.com>
Cc: Robert Foss <robert.foss@collabora.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
For most drivers, drm_fence_init is followed by drm_fence_emit
immediately. But for our driver, they are done separately. We also
don't know the fence seqno until drm_fence_emit.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190429220825.156644-2-olvaffe@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This is motivated by having meaningful ftrace events, but it also
fixes use cases where dma_fence_is_later is called, such as in
sync_file_merge.
In other drivers, fence creation and cmdbuf submission normally
happen atomically,
mutex_lock();
fence = dma_fence_create(..., ++timeline->seqno);
submit_cmdbuf();
mutex_unlock();
and have no such issue. But in our driver, because most ioctls
queue commands into ctrlq, we do not want to grab a lock. Instead,
we set seqno to 0 when a fence is created, and update it when the
command is finally queued and the seqno is known.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190429220825.156644-1-olvaffe@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The DMA masks need to be set correctly before any DMA API activity kicks
off, and the current point in panfrost_probe() is way too late in that
regard. since panfrost_mmu_init() has already set up a live address
space and DMA-mapped MMU pagetables. We can't set masks until we've
queried the appropriate value from MMU_FEATURES, but as soon as
reasonably possible after that should suffice.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/64361b929a5c61d2ab9580262ecb3d369164cfcb.1556195258.git.robin.murphy@arm.com
-misc-next-fixes.
Signed-off-by: Sean Paul <seanpaul@chromium.org>
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Merge panfrost-fixes into drm-misc-next-fixes
Merging some panfrost fixes as well as one rockchip fix that _just_
missed feature freeze.
Signed-off-by: Sean Paul <seanpaul@chromium.org>
If there is a match in the HW DB, the function is left early, before
inititalizing the idle mask. Fix this by doing the init earlier, as
only old GPUs, not present in the HW DB need a different idle mask.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Thomas Zimmermann