kernel/linux.git/Documentation/gpu/vkms.rst, branch linux-6.0.y

drm: vkms: Alloc the compose frame using vzalloc

2022-06-12T23:14:25+00:00

Currently, the memory to the composition frame is being allocated using the kzmalloc. This comes with the limitation of maximum size of one page size(which in the x86_64 is 4Kb and 4MB for default and hugepage respectively). Somes test of igt (e.g. kms_plane@pixel-format) uses more than 4MB when testing some pixel formats like ARGB16161616 and the following error were showing up when running kms_plane@plane-panning-bottom-right*: [drm:vkms_composer_worker [vkms]] *ERROR* Cannot allocate memory for output frame. This problem is addessed by allocating the memory using kvzalloc that circunvents this limitation. V5: Improve the commit message and drop the debugging issues in VKMS TO-DO(Melissa Wen). Reviewed-by: Melissa Wen Signed-off-by: Igor Torrente Signed-off-by: Melissa Wen Link: https://patchwork.freedesktop.org/patch/msgid/20220404204515.42144-2-igormtorrente@gmail.com

drm/vkms: drop "Multiple overlay planes" TODO

2022-01-09T17:14:37+00:00

Remove the task from the TODO list. Signed-off-by: José Expósito Reviewed-by: Melissa Wen Signed-off-by: Melissa Wen Link: https://patchwork.freedesktop.org/patch/msgid/20220107182809.141003-3-jose.exposito89@gmail.com

drm/vkms: update the current status of todo list

2021-07-01T22:04:44+00:00

Update: - debugging issues on igt testcases - plane composition features: add primary plane improvements - suggestions of good tasks to start working on vkms Drop: - syzkaller bug report: what triggered the warning was replaced by shmem functions at https://patchwork.freedesktop.org/patch/394614/ - overlay plane: this feature was added by https://patchwork.freedesktop.org/patch/430941/ Signed-off-by: Melissa Wen Reviewed-by: Rodrigo Siqueira Link: https://patchwork.freedesktop.org/patch/msgid/20210626092655.ghmmt2yux5klrne7@smtp.gmail.com

drm/vkms: Add information about module options

2021-01-12T20:16:25+00:00

Update vkms documentation to contain usage of `modinfo` command and steps to load vkms with module options enabled. Signed-off-by: Sumera Priyadarsini Reviewed-by: Melissa Wen Signed-off-by: Melissa Wen Link: https://patchwork.freedesktop.org/patch/msgid/4fbc6459377c1dcbe8e6648718453d5693f6451c.1610391685.git.sylphrenadin@gmail.com

drm/vkms: Add setup and testing information

2020-12-10T10:58:11+00:00

Update the vkms documentation to contain steps to: - setup the vkms driver - run tests using igt Signed-off-by: Sumera Priyadarsini Reviewed-by: Daniel Vetter Signed-off-by: Melissa Wen Link: https://patchwork.freedesktop.org/patch/msgid/20201209190453.c6kp5winikr55n3i@adolin

drm/vkms: update todo

2020-10-07T21:14:19+00:00

Drop issues already resolved in vkms: - CRC API Improvements to [1] add igt test to check extreme alpha values and [2] alpha blending; - [3] prime buffer sharing; - [4] writeback support; On the other hand, we also found or thought about other improvements since the last update of this document: - better support for IGT tests - improvements to writeback support - syzbot report Finally, we reorder items by the assumed complexity. [1] https://patchwork.freedesktop.org/series/55944/ [2] https://patchwork.freedesktop.org/series/80823/ [3] https://patchwork.freedesktop.org/series/63212/ [4] https://patchwork.freedesktop.org/series/81177/ v2: - Link to syzbot dashboard Cc: Daniel Vetter Cc: Rodrigo Siqueira Cc: Haneen Mohammed Signed-off-by: Melissa Wen Acked-by: Daniel Vetter Reviewed-by: Rodrigo Siqueira Link: https://patchwork.freedesktop.org/patch/msgid/20201006223006.gu55pjtuaigkh6il@smtp.gmail.com

drm/doc: Remove solved "VBlank issues"

2019-02-06T20:40:56+00:00

Remove the list of broken tests on VKMS solved by patchset https://patchwork.freedesktop.org/series/55994/ Signed-off-by: Shayenne Moura Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20190206193157.3b53ipdxtcqc4hv4@smtp.gmail.com

drm/vkms: Extend todo

2018-10-03T16:19:41+00:00

Typed up all the items Rodrigo capture at the vkms workshop at xdc2018: https://etherpad.net/p/vkms_todo v2: Review from Rodrigo. - Add eBPF for atomic check, I forgot it. - Improve spelling. Signed-off-by: Daniel Vetter Cc: Gustavo Padovan Cc: Maarten Lankhorst Cc: Sean Paul Cc: Haneen Mohammed Cc: Rodrigo Siqueira Reviewed-by: Rodrigo Siqueira Link: https://patchwork.freedesktop.org/patch/msgid/20181003132103.29309-1-daniel.vetter@ffwll.ch

drm/vkms: Add kerneldoc entry

2018-09-11T18:06:35+00:00

Add an initial kerneldoc entry for vkms with a todo list. Signed-off-by: Haneen Mohammed [danvet: Keep the todo.rst entry to point at the vkms docs instead.] Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20180907174136.GA2648@haneenDRM