- 01 Mar, 2017 1 commit
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Daniel Vetter authored
It's still just an experiment, but one lesson learned from drm-misc is that not updating MAINTAINERS just leads to confusion. And this is easy to revert. Cc: Boris Brezillon <boris.brezillon@free-electrons.com> Cc: Mark Yao <mark.yao@rock-chips.com> Cc: Eric Anholt <eric@anholt.net> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Shawn Guo <shawnguo@kernel.org> Acked-by:
Gerd Hoffmann <kraxel@redhat.com> Acked-by:
Eric Anholt <eric@anholt.net> Acked-by:
Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by:
Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170228193657.3559-1-daniel.vetter@ffwll.ch
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- 28 Feb, 2017 34 commits
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Eric Anholt authored
This makes for more sensible documentation of the whole module than jumping straight into the details of display. Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170227201144.10970-5-eric@anholt.net
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Eric Anholt authored
I had written most of my comments as if I was describing the individual code files the way I used to for doxygen, while for RST we want to describe things in a more chapter/section way where there's no obvious relation to .c files. Additionally, several of the files had stub descriptions that I've taken this opportunity to extend. Signed-off-by:
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Eric Anholt authored
This doesn't yet produce coherent documentation of the module, but at least gets the kerneldoc built and somewhat glued together. Signed-off-by:
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Eric Anholt authored
I'm going to hook vc4 up to the sphinx build, so clean up its comments to not generate warnings when we do. Signed-off-by:
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Michael Zoran authored
Commonly used desktop environments such as xfce4 and gnome on debian sid can flood the graphics drivers with cursor updates. Because the current implementation is waiting for a vblank between cursor updates, this will cause the display to hang for a long time since a typical refresh rate is only 60Hz. This is unnecessary and unexpected by user mode software, so simply swap out the cursor frame buffer without waiting. Signed-off-by:
Michael Zoran <mzoran@crowfest.net> Reviewed-by:
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Gabriel Krisman Bertazi authored
Now that atomic support is implemented, enable the atomic flag. Signed-off-by:
Gabriel Krisman Bertazi <krisman@collabora.co.uk> Link: http://patchwork.freedesktop.org/patch/msgid/20170227204328.18761-15-krisman@collabora.co.ukSigned-off-by:
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Gabriel Krisman Bertazi authored
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Gabriel Krisman Bertazi authored
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Gabriel Krisman Bertazi authored
Now that the state objects are wired up, we can move to the final atomic handlers. Signed-off-by:
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Gabriel Krisman Bertazi authored
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Gabriel Krisman Bertazi authored
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Gabriel Krisman Bertazi authored
In the qxl atomic model, the primary doesn't stay pinned all the time, instead it is only pinned/unpinned between prepare_fb and cleanup_fb. So, we no longer need a final unpin of the primary framebuffer when disabling the crtc. Signed-off-by:
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Gabriel Krisman Bertazi authored
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Gabriel Krisman Bertazi authored
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Gabriel Krisman Bertazi authored
In preparation for atomic conversion, let's use the transitional atomic helpers drm_plane_helper_update/disable. Signed-off-by:
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Gabriel Krisman Bertazi authored
Let's expose the primary plane initialization inside the qxl driver in preparation for universal planes and atomic. Signed-off-by:
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Gabriel Krisman Bertazi authored
qxl don't have support for hardware vblanks so we can't initialize it here, otherwise we risk getting stuck in drm_wait_one_vblank. Signed-off-by:
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Gabriel Krisman Bertazi authored
Every attempt to pin/unpin objects in memory requires qxl_bo_reserve/unreserve calls around the pinning operation to protect the object from concurrent access, which causes that call sequence to be reproduced every place where pinning is needed. In some cases, that sequence was not executed correctly, resulting in potential unprotected pinning operations. This commit encapsulates the reservation inside a new wrapper to make sure it is always handled properly. In cases where reservation must be done beforehand, for some reason, one can use the unprotected version __qxl_bo_pin/unpin. Signed-off-by:
Gustavo Padovan <gustavo.padovan@collabora.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170227204328.18761-3-krisman@collabora.co.ukSigned-off-by:
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Gabriel Krisman Bertazi authored
There are no device specific flags that we need to keep track of here. Let it vanish. Signed-off-by:
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Thierry Reding authored
Currently the functions that initialize and tear down a connector iterator use the _get() and _put() suffixes. However, these suffixes are typically used by reference counting functions. Make these function names a little more consistent by changing the suffixes to _begin() and _end(), which is a fairly common pattern in the rest of the Linux kernel. Suggested-by:
Jani Nikula <jani.nikula@linux.intel.com> Signed-off-by:
Thierry Reding <treding@nvidia.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-8-thierry.reding@gmail.com
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Thierry Reding authored
For consistency with other reference counting APIs in the kernel, add drm_property_blob_get() and drm_property_blob_put() to reference count DRM blob properties. Compatibility aliases are added to keep existing code working. To help speed up the transition, all the instances of the old functions in the DRM core are already replaced in this commit. A semantic patch is provided that can be used to convert all drivers to the new helpers. Reviewed-by:
Sean Paul <seanpaul@chromium.org> Acked-by:
Christian König <christian.koenig@amd.com> Signed-off-by:
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Thierry Reding authored
For consistency with other reference counting APIs in the kernel, add drm_gem_object_get() and drm_gem_object_put(), as well as an unlocked variant of the latter, to reference count GEM buffer objects. Compatibility aliases are added to keep existing code working. To help speed up the transition, all the instances of the old functions in the DRM core are already replaced in this commit. The existing semantic patch for the DRM subsystem-wide conversion is extended to account for these new helpers. Reviewed-by:
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Thierry Reding authored
For consistency with other reference counting APIs in the kernel, add drm_framebuffer_get() and drm_framebuffer_put() to reference count DRM framebuffers. Compatibility aliases are added to keep existing code working. To help speed up the transition, all the instances of the old functions in the DRM core are already replaced in this commit. The existing semantic patch for the DRM subsystem-wide conversion is extended to account for these new helpers. Reviewed-by:
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Thierry Reding authored
For consistency with other reference counting APIs in the kernel, add drm_connector_get() and drm_connector_put() functions to reference count connectors. Compatibility aliases are added to keep existing code working. To help speed up the transition, all the instances of the old functions in the DRM core are already replaced in this commit. The existing semantic patch for mode object reference count conversion is extended for these new helpers. Reviewed-by:
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Thierry Reding authored
For consistency with other reference counting APIs in the kernel, add drm_mode_object_get() and drm_mode_object_put() to reference count DRM mode objects. Compatibility aliases are added to keep existing code working. To help speed up the transition, all the instances of the old functions in the DRM core are already replaced in this commit. A semantic patch is provided that can be used to convert all drivers to the new helpers. Reviewed-by:
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Thierry Reding authored
Subsequent patches will introduce reference counting APIs that are more consistent with similar APIs throughout the Linux kernel. These APIs use the _get() and _put() suffixes and will collide with this existing function. Rename the function to drm_mode_object_add() which is a slightly more accurate description of what it does. Also the kerneldoc for this function gives an indication that it's badly named because it doesn't actually acquire a reference to anything. Reviewed-by:
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Joe Perches authored
Use a more common logging style. Miscellanea: o Coalesce formats and realign arguments Signed-off-by:
Joe Perches <joe@perches.com> [danvet: Resolve minor conflict in drm_edid.c] Signed-off-by:
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Daniel Vetter authored
Also became a bit a FAQ recently. Cc: John Stultz <john.stultz@linaro.org Cc: Thierry Reding <thierry.reding@gmail.com> Acked-by:
Thierry Reding <thierry.reding@gmail.com> Signed-off-by:
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Daniel Vetter authored
It's such a mess that it's become a FAQ :( Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Russell King - ARM Linux <linux@armlinux.org.uk> Acked-by:
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Maarten Lankhorst authored
Instead of trying to do everything in 1 go, just do a basic safe conversion first. We've been bitten by too many regressions in the past. This patch only converts drm_framebuffer_remove to atomic. The regression sensitive part is split out to a separate patch. v2: - Remove plane->fb assignment, done by drm_atomic_clean_old_fb. - Add WARN_ON when atomic_remove_fb fails. - Always call drm_atomic_state_put. v3: - Use drm_drv_uses_atomic_modeset - Handle the case where the first plane-disable-only commit fails with -EINVAL. Some drivers do not support this, fall back to disabling all crtc's in this case. v4: - Solve vmwgfx compatibility issue in their driver, was fixed in this patch by v3. - Move only disabling primary to a separate patch. Signed-off-by:
Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by:
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Maarten Lankhorst authored
It seems that nouveau requires this, so best to do this in the helper. This allows nouveau to use the atomic suspend helper. Cc: nouveau@lists.freedesktop.org Acked-by: Ben Skeggs <bskeggs@redhat.com> #irc Signed-off-by:
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Boris Brezillon authored
An HLCDC layers in Atmel's nomenclature is either a DRM plane or a 'Post Processing Layer' which can be used to output the results of the HLCDC composition in a memory buffer. atmel_hlcdc_layer.c was designed to be generic enough to be re-usable in both cases, but we're not exposing the post-processing layer yet, and even if we were, I'm not sure the code would provide the necessary tools to manipulate this kind of layer. Moreover, the code in atmel_hlcdc_{plane,layer}.c was designed before the atomic modesetting API, and was trying solve the check-setting/commit-if-ok/rollback-otherwise problem, which is now entirely solved by the existing core infrastructure. And finally, the code in atmel_hlcdc_layer.c is over-complicated compared to what we really need. This rework is a good excuse to simplify it. Note that this rework solves an existing resource leak (leading to a -EBUSY error) which I failed to clearly identify. Signed-off-by:Nicolas Ferre <nicolas.ferre@microchip.com>
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Jani Nikula authored
Follow the naming in debugfs also for logging, add "unknown" for values beyond the enumerated ones. v2: add \n in connector_show, make internal to drm (Chris) Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by:
Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1487580708-29340-1-git-send-email-jani.nikula@intel.com
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Lorenzo Stoakes authored
Moving from get_user_pages() to get_user_pages_unlocked() simplifies the code and takes advantage of VM_FAULT_RETRY functionality when faulting in pages. Signed-off-by:
Lorenzo Stoakes <lstoakes@gmail.com> Signed-off-by:
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- 27 Feb, 2017 4 commits
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Benjamin Gaignard authored
This make sure that of_platform_depopulate() is called if an error occur in probe after populating the date from the device tree. Signed-off-by:
Benjamin Gaignard <benjamin.gaignard@linaro.org> Signed-off-by:
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Benjamin Gaignard authored
Lots of calls to of_platform_populate() are not unbalanced by a call to of_platform_depopulate(). This create issues while drivers are bind/unbind. In way to solve those issues is to add devm_of_platform_populate() which will call of_platform_depopulate() when the device is unbound from the bus. Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Manasi Navare authored
At the time userspace does setcrtc, we've already promised the mode would work. The promise is based on the theoretical capabilities of the link, but it's possible we can't reach this in practice. The DP spec describes how the link should be reduced, but we can't reduce the link below the requirements of the mode. Black screen follows. One idea would be to have setcrtc return a failure. However, it already should not fail as the atomic checks have passed. It would also conflict with the idea of making setcrtc asynchronous in the future, returning before the actual mode setting and link training. Another idea is to train the link "upfront" at hotplug time, before pruning the mode list, so that we can do the pruning based on practical not theoretical capabilities. However, the changes for link training are pretty drastic, all for the sake of error handling and DP compliance, when the most common happy day scenario is the current approach of link training at mode setting time, using the optimal parameters for the mode. It is also not certain all hardware could do this without the pipe on; not even all our hardware can do this. Some of this can be solved, but not trivially. Both of the above ideas also fail to address link degradation *during* operation. The solution is to add a new "link-status" connector property in order to address link training failure in a way that: a) changes the current happy day scenario as little as possible, to avoid regressions, b) can be implemented the same way by all drm drivers, c) is still opt-in for the drivers and userspace, and opting out doesn't regress the user experience, d) doesn't prevent drivers from implementing better or alternate approaches, possibly without userspace involvement. And, of course, handles all the issues presented. In the usual happy day scenario, this is always "good". If something fails during or after a mode set, the kernel driver can set the link status to "bad" and issue a hotplug uevent for userspace to have it re-check the valid modes through GET_CONNECTOR IOCTL, and try modeset again. If the theoretical capabilities of the link can't be reached, the mode list is trimmed based on that. v7 by Jani: * Rebase, simplify set property while at it, checkpatch fix v6: * Fix a typo in kernel doc (Sean Paul) v5: * Clarify doc for silent rejection of atomic properties by driver (Daniel Vetter) v4: * Add comments in kernel-doc format (Daniel Vetter) * Update the kernel-doc for link-status (Sean Paul) v3: * Fixed a build error (Jani Saarinen) v2: * Removed connector->link_status (Daniel Vetter) * Set connector->state->link_status in drm_mode_connector_set_link_status_property (Daniel Vetter) * Set the connector_changed flag to true if connector->state->link_status changed. * Reset link_status to GOOD in update_output_state (Daniel Vetter) * Never allow userspace to set link status from Good To Bad (Daniel Vetter) Reviewed-by:
Tony Cheng <tony.cheng@amd.com> Acked-by:
Harry Wentland <harry.wentland@amd.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Sean Paul <seanpaul@chromium.org> Signed-off-by:
Manasi Navare <manasi.d.navare@intel.com> Signed-off-by:
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Archit Taneja authored
A couple of the kms functions didn't have the correct/newest names. This prevented them to be identified as refs in the html doc. Reviewed-by:
Eric Engestrom <eric.engestrom@imgtec.com> Tested-by:
Archit Taneja <architt@codeaurora.org> Link: http://patchwork.freedesktop.org/patch/msgid/20170222084741.8485-1-architt@codeaurora.org
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- 26 Feb, 2017 1 commit
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kbuild test robot authored
drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c:454:2-3: Unneeded semicolon Remove unneeded semicolon. Generated by: scripts/coccinelle/misc/semicolon.cocci Signed-off-by:
Fengguang Wu <fengguang.wu@intel.com> Signed-off-by:
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