Commit Graph

102 Commits

Author SHA1 Message Date
Simon Ser 485ecc11a6 backend/drm: remove wlr_drm_crtc.pending_modeset
Replace it with a new drm_connector_state_is_modeset function that
decides whether a modeset is necessary directly from the
wlr_output_state which is going to be applied.
2021-04-29 19:51:57 +02:00
Simon Ser 1a9701cd7c backend/drm: take wlr_output_state as arg in commit callers
Instead of relying on wlr_output.pending to be empty when performing
backend-initiated CRTC commits, use a zero wlr_output_state.
2021-04-29 19:51:57 +02:00
Simon Ser 9b0e0970f9 backend/drm: destroy backend on udev remove event
Any use of the DRM FD after the remove event results in a "Permission
denied" error.
2021-04-27 09:11:44 +02:00
Simon Ser c49ea9ef4f backend/drm: destroy when parent is destroyed 2021-04-27 09:11:44 +02:00
zccrs e76583f1ad Use absolute paths in include in header files
To unify the code style of the project, absolute paths have been used in
some places, such as '#include "render/allocator.h"' in
"render/gbm_allocator.h". Except for include the wayland protocol
headers should be consistent.
2021-04-06 10:40:56 +02:00
Simon Ser 44a3d6e74d backend/drm: document wlr_drm_plane surface fields 2021-01-24 18:21:38 +01:00
Simon Ser d9bbc416a6 backend/drm: re-use FBs
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
2021-01-10 11:24:35 +01:00
Simon Ser 5b1b43c68c backend/drm: make wlr_drm_plane.{pending,queued,current}_fb pointers
This will be useful once we start re-using wlr_drm_fb.
2021-01-10 11:24:35 +01:00
Simon Zeni 9192c0480a remove unnecessary egl includes 2021-01-07 17:11:22 +01:00
Simon Ser adfb7cd35a backend/drm: stash pending page-flip CRTC
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.
2021-01-03 19:35:02 +01:00
Simon Ser c5f239f411
backend/drm: make listener names more idiomatic
Use the "<object>_<event>" notation for listeners, use
"handle_<listener>" for handlers.
2020-12-25 14:45:00 +01:00
Simon Ser 54ec17ff64
backend/drm: use plural form for possible_crtcs
Make it clearer that this is a bitmask of CRTC indices.
2020-12-23 12:14:36 +01:00
Simon Ser 352fdd1bb0
backend/drm: remove unused wlr_drm_plane.drm_format 2020-12-18 11:44:50 +01:00
Simon Ser 248c7787c7 backend/drm: refactor wlr_output destruction
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.
2020-12-18 10:48:44 +01:00
Simon Ser 019ffe8a5b backend/drm: introduce wlr_drm_connector.name
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.
2020-12-18 10:48:44 +01:00
Simon Ser c89b131f29 backend/drm: introduce wlr_drm_conn_log
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.
2020-12-18 10:48:44 +01:00
Simon Ser 9cd3f03f65
backend/drm: add wlr_drm_backend.name
Save the DRM device name in a wlr_drm_backend field, so that we can
easily use it for logging purposes.
2020-12-17 20:48:47 +01:00
Simon Ser da2a216934
backend/drm: add wlr_drm_connector.backend
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.
2020-12-15 22:56:14 +01:00
Simon Ser 863acb26c0 backend/drm: stop tracking overlay planes
We don't do anything with them. Once we do, we can easily add this back.
2020-12-08 18:38:42 +01:00
Simon Ser 44a4792fd8 backend/session: operate on wlr_device
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.
2020-11-19 22:47:49 +01:00
Antonin Décimo 9686895b4e Fix typos 2020-07-21 23:00:13 +02:00
Simon Ser 70f3a0bb27 backend/drm: make adaptive_sync atomic
Stop using drmModeObjectSetProperty, set the property in the crtc_commit
function instead.
2020-06-01 11:45:11 -06:00
Simon Ser e7a8ea84c3 backend/drm: don't set cursor if off-screen
Closes: https://github.com/swaywm/wlroots/issues/2216
2020-05-27 21:01:20 +02:00
Simon Ser 15d8f1806e backend/drm: introduce pending and current CRTC state
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.
2020-05-26 23:34:37 +02:00
Simon Ser d6cc718472 backend/drm: nuke retry_pageflip
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?
2020-05-26 23:34:37 +02:00
Simon Ser 61095f4a12 backend/drm: make drm_connector_set_mode take a wlr_drm_connector
Since this is an internal DRM backend function, there's no reason we
need to take a generic wlr_output.
2020-05-26 23:34:37 +02:00
Simon Ser 445750aa9a backend/drm: remove enable_drm_connector
Merge enable_drm_connector into drm_connector_set_mode. This allows us
to de-duplicate logic since enabling an output performs a modeset.
2020-05-26 23:34:37 +02:00
Simon Ser 347bdb6d9a output: make wlr_output_set_gamma atomic
wlr_output_set_gamma is now double-buffered and applies the gamma LUT on
the next output commit.
2020-05-14 20:09:28 +02:00
Simon Ser 2ca3bdc35e backend/drm: simplify atomic commit logic
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.
2020-05-10 09:21:04 +02:00
Simon Ser f8e02db4bc backend/drm: remove conn_enable from interface
Use crtc_commit instead.
2020-05-09 16:42:25 +02:00
Simon Ser 70883fd10b backend/drm: apply gamma LUT on page-flip 2020-05-09 16:42:25 +02:00
Simon Ser 69b2279092 backend/drm: remove mode argument to crtc_pageflip
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).
2020-05-09 16:42:25 +02:00
Simon Ser 7a149fe5ba backend/drm: remove unused fields 2020-05-09 16:42:25 +02:00
Scott Anderson 8da9d9679e backend/drm: introduce wlr_drm_fb
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>
2020-04-28 09:54:52 +02:00
Simon Ser 6977f3a843 output: check buffer in wlr_output_test
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.
2020-04-08 16:31:21 +02:00
Simon Ser 8681e4ab8a backend/drm, backend/libinput: listen to session destroy
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)
2019-12-01 10:26:12 -05:00
Simon Ser 16e5e9541b Add -Wmissing-prototypes
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.
2019-11-20 02:05:03 +00:00
Simon Ser fd25e2ca11 backend/drm: track gbm_bo during direct scan-out
We need to destroy the gbm_bo we imported and drmModeRmFb.

Closes: https://github.com/swaywm/sway/issues/4662
2019-10-22 21:50:31 +00:00
Rouven Czerwinski 4d36cc86eb backend/drm: destroy output immediately
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
2019-08-03 15:44:21 +02:00
Simon Ser ca45f4490c Remove all wayland-server.h includes
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.
2019-07-27 15:49:32 -04:00
Scott Anderson b3f42548d0 backend/drm: Simplify object matching code
We originally used match_obj on planes, but this was largely
unnecessary. Instead, this assigns planes statically at startup.
2019-06-22 11:58:33 +03:00
Simon Ser e8057bb60c backend/drm: fallback to drmModeAddFB2 2019-06-07 09:06:11 -04:00
Simon Ser 44ba603c0e backend/drm: hold buffers while scanning out 2019-06-07 09:06:11 -04:00
Simon Ser afe7b207d5 output: fix attach_buffer semantics 2019-06-07 09:06:11 -04:00
Simon Ser e516ea4c79 backend/drm: check format when scanning out DMA-BUF 2019-06-07 09:06:11 -04:00
Brian Ashworth 50011e7170 backend/drm: fix modeset on drm fd resume
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.
2019-02-19 16:49:51 +01:00
Vincent Vanlaer 7bc43413ed Allow cursor render surface to be used as fb
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.
2019-02-04 20:47:07 +01:00
emersion ee293fab58
backend/drm: fix GBM format mismatch
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
2019-01-29 12:04:12 +01:00
emersion 54e1287f30 backend: add get_present_clock 2018-10-04 21:58:17 +02:00
emersion e88db9a3fb backend/drm: reset gamma table on VT switch 2018-10-03 10:53:35 +02:00