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path: root/include/backend/drm/drm.h
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2021-01-10backend/drm: re-use FBsSimon Ser
Instead of importing buffers to GBM and KMS at each frame, cache them and re-use them while the wlr_buffer is alive. This is the same as [1] and [2] but for the DRM backend. [1]: https://github.com/swaywm/wlroots/pull/2538 [2]: https://github.com/swaywm/wlroots/pull/2539
2021-01-10backend/drm: make wlr_drm_plane.{pending,queued,current}_fb pointersSimon Ser
This will be useful once we start re-using wlr_drm_fb.
2021-01-07remove unnecessary egl includesSimon Zeni
2021-01-03backend/drm: stash pending page-flip CRTCSimon Ser
wlr_drm_connector.crtc may be updated by the DRM backend while a page-flip is pending. In this case, the page-flip handler won't be able to find the right wlr_drm_connector from the CRTC ID. Save the CRTC when performing a page-flip to ensure we always find the right connector when we get the event.
2020-12-25backend/drm: make listener names more idiomaticSimon Ser
Use the "<object>_<event>" notation for listeners, use "handle_<listener>" for handlers.
2020-12-23backend/drm: use plural form for possible_crtcsSimon Ser
Make it clearer that this is a bitmask of CRTC indices.
2020-12-18backend/drm: remove unused wlr_drm_plane.drm_formatSimon Ser
2020-12-18backend/drm: refactor wlr_output destructionSimon Ser
Instead of hand-rolling our own manual wlr_output cleanup function, rely on wlr_output_destroy to remove an output from the compositor's state.
2020-12-18backend/drm: introduce wlr_drm_connector.nameSimon Ser
The DRM backend is a little special when it comes to wlr_outputs: the wlr_drm_connectors are long-lived and are created even when no screen is connected. A wlr_drm_connector only advertises a wlr_output to the compositor when a screen is connected. As such, most of wlr_output's state is invalid when the connector is disconnected. We want to stop using wlr_output state on disconnected connectors. Introduce wlr_drm_connector.name which is always valid regardless of the connector status to avoid reading wlr_output.name when disconnected.
2020-12-18backend/drm: introduce wlr_drm_conn_logSimon Ser
Simplify and unify connector-specific logging with a new wlr_drm_conn_log macro. This makes it easier to understand which connector a failure is about, without having to explicitly integrate the connector name in each log message.
2020-12-17backend/drm: add wlr_drm_backend.nameSimon Ser
Save the DRM device name in a wlr_drm_backend field, so that we can easily use it for logging purposes.
2020-12-15backend/drm: add wlr_drm_connector.backendSimon Ser
This allows the DRM code to have direct access to the wlr_drm_backend without having to go through an upcast via get_drm_backend_from_backend.
2020-12-08backend/drm: stop tracking overlay planesSimon Ser
We don't do anything with them. Once we do, we can easily add this back.
2020-11-19backend/session: operate on wlr_deviceSimon Ser
Instead of operating on FDs in {open,close}_device, operate on wlr_devices. This avoids the device lookup in wlr_session and allows callers to have access to wlr_device fields. For now, we use it to remove wlr_session_signal_add and replace it with a more idiomatic wlr_session.events.change field. In the future, other events will be added.
2020-07-21Fix typosAntonin Décimo
2020-06-01backend/drm: make adaptive_sync atomicSimon Ser
Stop using drmModeObjectSetProperty, set the property in the crtc_commit function instead.
2020-05-27backend/drm: don't set cursor if off-screenSimon Ser
Closes: https://github.com/swaywm/wlroots/issues/2216
2020-05-26backend/drm: introduce pending and current CRTC stateSimon Ser
Previously, we only had the pending state (crtc->pending, crtc->mode and crtc->active). This causes issues when a commit fails: the pending state is left as-is, and the next commit may read stale data from it. This will also cause issues when implementing test-only commits: we need to rollback the pending CRTC state after a test-only commit. Introduce separate pending and current CRTC states. Properly update the current state after a commit.
2020-05-26backend/drm: nuke retry_pageflipSimon Ser
retry_pageflip is now dead code, since drm_connector_start_renderer isn't called anymore. It was previously called when enabling an output. The name "retry_pageflip" was a little confusing because the function retried a modeset and the timer wasn't set up while performing a simple page-flip. Let's just remove this altogether for now. We can discuss whether it's worth it to bring it back. Should we only do it on failed page-flips? Should we only do it on EBUSY?
2020-05-26backend/drm: make drm_connector_set_mode take a wlr_drm_connectorSimon Ser
Since this is an internal DRM backend function, there's no reason we need to take a generic wlr_output.
2020-05-26backend/drm: remove enable_drm_connectorSimon Ser
Merge enable_drm_connector into drm_connector_set_mode. This allows us to de-duplicate logic since enabling an output performs a modeset.
2020-05-14output: make wlr_output_set_gamma atomicSimon Ser
wlr_output_set_gamma is now double-buffered and applies the gamma LUT on the next output commit.
2020-05-10backend/drm: simplify atomic commit logicSimon Ser
We don't need a per-CRTC atomic request anymore. Let's make the request per-commit so that it's easier to debug. This is also groundwork for supporting wlr_output_test properly.
2020-05-09backend/drm: remove conn_enable from interfaceSimon Ser
Use crtc_commit instead.
2020-05-09backend/drm: apply gamma LUT on page-flipSimon Ser
2020-05-09backend/drm: remove mode argument to crtc_pageflipSimon Ser
Add a new wlr_drm_crtc.pending bitfield which keeps track of pending output changes. More fields will be added in the future (e.g. active, gamma).
2020-05-09backend/drm: remove unused fieldsSimon Ser
2020-04-28backend/drm: introduce wlr_drm_fbScott Anderson
This is a type which manages gbm_surfaces and imported dmabufs in the same place, and makes the lifetime management between the two shared. It should lead to easier to understand code, and fewer special cases. This also contains a fair bit of refactoring to start using this new type. Co-authored-by: Simon Ser <contact@emersion.fr>
2020-04-08output: check buffer in wlr_output_testSimon Ser
Check that buffer can be scanned out in wlr_output_test instead of wlr_output_attach_buffer. This allows the backend to have access to the whole pending state when performing the check. This brings the wlr_output API more in line with the KMS API. This removes the need for wlr_output_attach_buffer to return a value, and for wlr_output_impl.attach_buffer.
2019-12-01backend/drm, backend/libinput: listen to session destroySimon Ser
This fixes a heap-use-after-free when the session is destroyed before the backend during wl_display_destroy: ==1085==ERROR: AddressSanitizer: heap-use-after-free on address 0x614000000180 at pc 0x7f88e3590c2d bp 0x7ffdc4e33f90 sp 0x7ffdc4e33f80 READ of size 8 at 0x614000000180 thread T0 #0 0x7f88e3590c2c in find_device ../subprojects/wlroots/backend/session/session.c:192 #1 0x7f88e3590e85 in wlr_session_close_file ../subprojects/wlroots/backend/session/session.c:204 #2 0x7f88e357b80c in libinput_close_restricted ../subprojects/wlroots/backend/libinput/backend.c:24 #3 0x7f88e21af274 (/lib64/libinput.so.10+0x28274) #4 0x7f88e21aff1d (/lib64/libinput.so.10+0x28f1d) #5 0x7f88e219ddac (/lib64/libinput.so.10+0x16dac) #6 0x7f88e21b415d in libinput_unref (/lib64/libinput.so.10+0x2d15d) #7 0x7f88e357c9d6 in backend_destroy ../subprojects/wlroots/backend/libinput/backend.c:130 #8 0x7f88e3545a09 in wlr_backend_destroy ../subprojects/wlroots/backend/backend.c:50 #9 0x7f88e358981a in multi_backend_destroy ../subprojects/wlroots/backend/multi/backend.c:54 #10 0x7f88e358a059 in handle_display_destroy ../subprojects/wlroots/backend/multi/backend.c:107 #11 0x7f88e314acde (/lib64/libwayland-server.so.0+0x8cde) #12 0x7f88e314b466 in wl_display_destroy (/lib64/libwayland-server.so.0+0x9466) #13 0x559fefb52385 in main ../main.c:67 #14 0x7f88e2639152 in __libc_start_main (/lib64/libc.so.6+0x27152) #15 0x559fefb4297d in _start (/home/simon/src/glider/build/glider+0x2297d) 0x614000000180 is located 320 bytes inside of 416-byte region [0x614000000040,0x6140000001e0) freed by thread T0 here: #0 0x7f88e3d0a6b0 in __interceptor_free /build/gcc/src/gcc/libsanitizer/asan/asan_malloc_linux.cc:122 #1 0x7f88e35b51fb in logind_session_destroy ../subprojects/wlroots/backend/session/logind.c:270 #2 0x7f88e35905a4 in wlr_session_destroy ../subprojects/wlroots/backend/session/session.c:156 #3 0x7f88e358f440 in handle_display_destroy ../subprojects/wlroots/backend/session/session.c:65 #4 0x7f88e314acde (/lib64/libwayland-server.so.0+0x8cde) previously allocated by thread T0 here: #0 0x7f88e3d0acd8 in __interceptor_calloc /build/gcc/src/gcc/libsanitizer/asan/asan_malloc_linux.cc:153 #1 0x7f88e35b911c in logind_session_create ../subprojects/wlroots/backend/session/logind.c:746 #2 0x7f88e358f6b4 in wlr_session_create ../subprojects/wlroots/backend/session/session.c:91 #3 0x559fefb51ea6 in main ../main.c:20 #4 0x7f88e2639152 in __libc_start_main (/lib64/libc.so.6+0x27152)
2019-11-20Add -Wmissing-prototypesSimon Ser
This requires functions without a prototype definition to be static. This allows to detect dead code, export less symbols and put shared functions in headers.
2019-10-22backend/drm: track gbm_bo during direct scan-outSimon Ser
We need to destroy the gbm_bo we imported and drmModeRmFb. Closes: https://github.com/swaywm/sway/issues/4662
2019-08-03backend/drm: destroy output immediatelyRouven Czerwinski
Instead of waiting for the next pageflip, destroy the output immediately since we can now handle flips for outputs which no longer exist. Also demote the missing crtc on flip to debug. Fixes #1739
2019-07-27Remove all wayland-server.h includesSimon Ser
The documentation for wayland-server.h says: > Use of this header file is discouraged. Prefer including > wayland-server-core.h instead, which does not include the server protocol > header and as such only defines the library PI, excluding the deprecated API > below. Replacing wayland-server.h with wayland-server-core.h allows us to drop the WL_HIDE_DEPRECATED declaration.
2019-06-22backend/drm: Simplify object matching codeScott Anderson
We originally used match_obj on planes, but this was largely unnecessary. Instead, this assigns planes statically at startup.
2019-06-07backend/drm: fallback to drmModeAddFB2Simon Ser
2019-06-07backend/drm: hold buffers while scanning outSimon Ser
2019-06-07output: fix attach_buffer semanticsSimon Ser
2019-06-07backend/drm: check format when scanning out DMA-BUFSimon Ser
2019-02-19backend/drm: fix modeset on drm fd resumeBrian Ashworth
On DRM resume, such as switching back to a TTY, the output needs to be modeset to the current mode. However, wlr_output_set_mode will return early when attempting to set the mode to the current mode. This just steps around wlr_output_set_mode and calls drm_connector_set_mode directly.
2019-02-04Allow cursor render surface to be used as fbVincent Vanlaer
In order for a surface to be used as a cursor plane framebuffer, it appears that requiring the buffer to be linear is sufficient. GBM_BO_USE_SCANOUT is added in case GBM_BO_USE_LINEAR isn't sufficient on untested hardware. Fixes #1323 Removed wlr_drm_plane.cursor_bo as it does not serve any purpose anymore. Relevant analysis (taken from the PR description): While trying to implement a fix for #1323, I found that when exporting the rendered surface into a DMA-BUF and reimporting it with `GBM_BO_USE_CURSOR`, the resulting object does not appear to be valid. After some digging (turning on drm-kms debugging and switching to legacy mode), I managed to extract the following error: ``` [drm:__setplane_check.isra.1 [drm]] Invalid pixel format AR24 little-endian (0x34325241), modifier 0x100000000000001 ``` The format itself refers to ARGB8888 which is the same format as `renderer->gbm_format` used in master to create the cursor bo. However, using `gbm_bo_create` with `GBM_BO_USE_CURSOR` results in a modifier of 0. A modifier of zero represents a linear buffer while the modifier of the surface that is rendered to is `I915_FORMAT_MOD_X_TILED` (see https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/include/uapi/drm/drm_fourcc.h?h=v4.20.6#n263). In order to fix this mismatch in modifier, I added the `GBM_BO_USE_LINEAR` to the render surface and everything started to work just fine. I wondered however, whether the export and import is really necessary. I then decided to test if the back buffer of the render surface works as well, and at least on my hardware (Intel HD 530 and Intel UHD 620) it does. This is the patch in this PR and this requires no exporting and importing. I have to note that I cheated in order to import DMA_BUFs into a cursor bo when doing the first tests, since on import the Intel drivers check that the cursor is 64x64. This is strange since cursor sizes other than 64x64 have been around for quite some time now (https://lists.freedesktop.org/archives/mesa-commit/2014-June/050268.html). Removing this check made everything work fine. I later (while writing this PR) found out that `__DRI_IMAGE_USE_CURSOR` (to which `GBM_BO_USE_CURSOR` translates) has been deprecated in mesa (https://gitlab.freedesktop.org/mesa/mesa/blob/master/include/GL/internal/dri_interface.h#L1296), which makes me wonder what the usecase of `GBM_BO_USE_CURSOR` is. The reason we never encountered this is that when specifying `GBM_BO_USE_WRITE`, a dumb buffer is created trough DRM and the usage flag never reaches the Intel driver directly. The relevant code is in https://gitlab.freedesktop.org/mesa/mesa/blob/master/src/gbm/backends/dri/gbm_dri.c#L1011-1089 . From this it seems that as long as the size, format and modifiers are right, any surface can be used as a cursor.
2019-01-29backend/drm: fix GBM format mismatchemersion
We create the EGL config with GBM_FORMAT_ARGB8888, but then initialize GBM BOs with GBM_FORMAT_XRGB8888. This mismatch confuses Mesa. Instead, we can always use GBM_FORMAT_ARGB8888, and use DRM_FORMAT_XRGB8888 when calling drmModeAddFB2. Fixes https://github.com/swaywm/wlroots/issues/1438
2018-10-04backend: add get_present_clockemersion
2018-10-03backend/drm: reset gamma table on VT switchemersion
2018-09-28backend/drm: don't free connector immediatelyemersion
When a pageflip is pending, we'll get a DRM event for the connector in the future. We don't want to free the connector immediately otherwise we'll use-after-free in the pageflip handler. This commit adds a new state, "DISAPPEARED". This asks the pageflip handler to destroy the output after it's done pageflipping.
2018-09-18backend/drm: add assertionsemersion
2018-09-15backend/drm: steal CRTCs from disabled outputsemersion
This commit allows outputs that need a CRTC to steal it from user-disabled outputs. Note that in the case there are enough CRTCs, disabled outputs don't loose it (so there's no modeset and plane initialization needed after DPMS). CRTC allocation still prefers to keep the old configuration, even if that means allocating an extra CRTC to a disabled output. CRTC reallocation now happen when enabling/disabling an output as well as when trying to modeset. When enabling an output without a CRTC, we realloc to try to steal a CRTC from a disabled output (that doesn't really need the CRTC). When disabling an output, we try to give our CRTC to an output that needs one. Modesetting is similar to enabling. A new DRM connector field has been added: `desired_enabled`. Outputs without CRTCs get automatically disabled. This field keeps track of the state desired by the user, allowing to automatically re-enable outputs when a CRTC becomes free. This required some changes to the allocation algorithm. Previously, the algorithm tried to keep the previous configuration even if a new configuration with a better score was possible (it only changed configuration when the old one didn't work anymore). This is now changed and the old configuration (still preferred) is only retained without considering new possibilities when it's perfect (all outputs have CRTCs). User-disabled outputs now have `possible_crtcs` set to 0, meaning they can only retain a previous CRTC (not acquire a new one). The allocation algorithm has been updated to do not bump the score when assigning a CRTC to a disabled output.
2018-09-14output: make wlr_output_enable return a boolemersion
2018-09-04backend/drm: better hotplug handlingemersion
This commit handles better situations in which the number of connected outputs is greater than the number of available CRTCs. It'll enable as many outputs as possible, and transfer CRTCs to outputs that need one on unplug. This changes CRTC and plane reallocation to happen after scanning DRM connectors instead of on modeset. This cleanups CRTCs and planes on unplug to allow them to be re-used for other outputs. On modeset, if an output doesn't have a CRTC, the desired mode is saved and used later when the output gains a CRTC. Future work includes giving priority to enabled outputs over disabled ones for CRTC allocation. This requires the compositor to know about all outputs (even outputs without CRTCs) to properly modeset outputs enabled in the compositor config file and disable outputs disabled in the config file.
2018-08-13move wlr_drm_connector_add_mode to wlr/backend/drm.hIlia Bozhinov
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