diff options
author | Dave Airlie <airlied@redhat.com> | 2023-12-19 10:07:25 +0300 |
---|---|---|
committer | Dave Airlie <airlied@redhat.com> | 2023-12-19 10:07:32 +0300 |
commit | 48b272853e5ca6680eb7d019347126923da1a2eb (patch) | |
tree | b99c50c08043e17ab06dadb6088cd5b1fcbd95a6 /Documentation/gpu | |
parent | a0a28956b46ec7f16ce5d762ac5a124bb532da0d (diff) | |
parent | b1a2aa9bcbb88a7dc1c4df98dbf4f4df9ca79c9f (diff) | |
download | linux-48b272853e5ca6680eb7d019347126923da1a2eb.tar.xz |
Merge tag 'drm-misc-next-2023-12-14' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for $kernel-version:
UAPI Changes:
Cross-subsystem Changes:
- A few fixes for usb/typec
Core Changes:
- ci: Updates to the defconfig, igt version, etc.
- writeback: Move the atomic_check helper from the encoder to connector
Driver Changes:
- rockchip: Add support for rk3588
- xe: Update the TODO list
- panel:
- nv3052c: Register documentation, init sequence improvements and
support for the Fascontek FS035VG158
- st7701: Add support for the Anbernic RG-ARC
- new driver: Synaptics R63353 panel controller, Ilitek ILI9805 panel
controller
- new panel: AUO G156HAN04.0
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/aqpn5miejmkks7pbcfex7b6u63uwsruywxsnr3x5ljs45qatin@nbkkej2elk46
Diffstat (limited to 'Documentation/gpu')
-rw-r--r-- | Documentation/gpu/automated_testing.rst | 7 | ||||
-rw-r--r-- | Documentation/gpu/rfc/xe.rst | 127 |
2 files changed, 66 insertions, 68 deletions
diff --git a/Documentation/gpu/automated_testing.rst b/Documentation/gpu/automated_testing.rst index 240e29d5ba68..2d5a28866afe 100644 --- a/Documentation/gpu/automated_testing.rst +++ b/Documentation/gpu/automated_testing.rst @@ -69,14 +69,15 @@ the result. They will still be run. Each new flake entry must be associated with a link to the email reporting the bug to the author of the affected driver, the board name or Device Tree name of -the board, the first kernel version affected, and an approximation of the -failure rate. +the board, the first kernel version affected, the IGT version used for tests, +and an approximation of the failure rate. They should be provided under the following format:: # Bug Report: $LORE_OR_PATCHWORK_URL # Board Name: broken-board.dtb - # Version: 6.6-rc1 + # Linux Version: 6.6-rc1 + # IGT Version: 1.28-gd2af13d9f # Failure Rate: 100 flaky-test diff --git a/Documentation/gpu/rfc/xe.rst b/Documentation/gpu/rfc/xe.rst index ceb21219d52e..97cf87578f97 100644 --- a/Documentation/gpu/rfc/xe.rst +++ b/Documentation/gpu/rfc/xe.rst @@ -70,35 +70,42 @@ When the time comes for Xe, the protection will be lifted on Xe and kept in i915 Xe – Pre-Merge Goals - Work-in-Progress ======================================= -Drm_scheduler -------------- -Xe primarily uses Firmware based scheduling (GuC FW). However, it will use -drm_scheduler as the scheduler ‘frontend’ for userspace submission in order to -resolve syncobj and dma-buf implicit sync dependencies. However, drm_scheduler is -not yet prepared to handle the 1-to-1 relationship between drm_gpu_scheduler and -drm_sched_entity. +Display integration with i915 +----------------------------- +In order to share the display code with the i915 driver so that there is maximum +reuse, the i915/display/ code is built twice, once for i915.ko and then for +xe.ko. Currently, the i915/display code in Xe tree is polluted with many 'ifdefs' +depending on the build target. The goal is to refactor both Xe and i915/display +code simultaneously in order to get a clean result before they land upstream, so +that display can already be part of the initial pull request towards drm-next. -Deeper changes to drm_scheduler should *not* be required to get Xe accepted, but -some consensus needs to be reached between Xe and other community drivers that -could also benefit from this work, for coupling FW based/assisted submission such -as the ARM’s new Mali GPU driver, and others. +However, display code should not gate the acceptance of Xe in upstream. Xe +patches will be refactored in a way that display code can be removed, if needed, +from the first pull request of Xe towards drm-next. The expectation is that when +both drivers are part of the drm-tip, the introduction of cleaner patches will be +easier and speed up. -As a key measurable result, the patch series introducing Xe itself shall not -depend on any other patch touching drm_scheduler itself that was not yet merged -through drm-misc. This, by itself, already includes the reach of an agreement for -uniform 1 to 1 relationship implementation / usage across drivers. +Xe – uAPI high level overview +============================= -ASYNC VM_BIND -------------- -Although having a common DRM level IOCTL for VM_BIND is not a requirement to get -Xe merged, it is mandatory to have a consensus with other drivers and Mesa. -It needs to be clear how to handle async VM_BIND and interactions with userspace -memory fences. Ideally with helper support so people don't get it wrong in all -possible ways. +...Warning: To be done in follow up patches after/when/where the main consensus in various items are individually reached. -As a key measurable result, the benefits of ASYNC VM_BIND and a discussion of -various flavors, error handling and sample API suggestions are documented in -:doc:`The ASYNC VM_BIND document </gpu/drm-vm-bind-async>`. +Xe – Pre-Merge Goals - Completed +================================ + +Drm_exec +-------- +Helper to make dma_resv locking for a big number of buffers is getting removed in +the drm_exec series proposed in https://patchwork.freedesktop.org/patch/524376/ +If that happens, Xe needs to change and incorporate the changes in the driver. +The goal is to engage with the Community to understand if the best approach is to +move that to the drivers that are using it or if we should keep the helpers in +place waiting for Xe to get merged. + +This item ties into the GPUVA, VM_BIND, and even long-running compute support. + +As a key measurable result, we need to have a community consensus documented in +this document and the Xe driver prepared for the changes, if necessary. Userptr integration and vm_bind ------------------------------- @@ -132,6 +139,36 @@ the time comes. The DRM GPUVM helpers do not yet include the userptr parts, but discussions about implementing them are ongoing. +ASYNC VM_BIND +------------- +Although having a common DRM level IOCTL for VM_BIND is not a requirement to get +Xe merged, it is mandatory to have a consensus with other drivers and Mesa. +It needs to be clear how to handle async VM_BIND and interactions with userspace +memory fences. Ideally with helper support so people don't get it wrong in all +possible ways. + +As a key measurable result, the benefits of ASYNC VM_BIND and a discussion of +various flavors, error handling and sample API suggestions are documented in +:doc:`The ASYNC VM_BIND document </gpu/drm-vm-bind-async>`. + +Drm_scheduler +------------- +Xe primarily uses Firmware based scheduling (GuC FW). However, it will use +drm_scheduler as the scheduler ‘frontend’ for userspace submission in order to +resolve syncobj and dma-buf implicit sync dependencies. However, drm_scheduler is +not yet prepared to handle the 1-to-1 relationship between drm_gpu_scheduler and +drm_sched_entity. + +Deeper changes to drm_scheduler should *not* be required to get Xe accepted, but +some consensus needs to be reached between Xe and other community drivers that +could also benefit from this work, for coupling FW based/assisted submission such +as the ARM’s new Mali GPU driver, and others. + +As a key measurable result, the patch series introducing Xe itself shall not +depend on any other patch touching drm_scheduler itself that was not yet merged +through drm-misc. This, by itself, already includes the reach of an agreement for +uniform 1 to 1 relationship implementation / usage across drivers. + Long running compute: minimal data structure/scaffolding -------------------------------------------------------- The generic scheduler code needs to include the handling of endless compute @@ -144,46 +181,6 @@ this minimal drm/scheduler work, if needed, merged to drm-misc in a way that any drm driver, including Xe, could re-use and add their own individual needs on top in a next stage. However, this should not block the initial merge. -This is a non-blocker item since the driver without the support for the long -running compute enabled is not a showstopper. - -Display integration with i915 ------------------------------ -In order to share the display code with the i915 driver so that there is maximum -reuse, the i915/display/ code is built twice, once for i915.ko and then for -xe.ko. Currently, the i915/display code in Xe tree is polluted with many 'ifdefs' -depending on the build target. The goal is to refactor both Xe and i915/display -code simultaneously in order to get a clean result before they land upstream, so -that display can already be part of the initial pull request towards drm-next. - -However, display code should not gate the acceptance of Xe in upstream. Xe -patches will be refactored in a way that display code can be removed, if needed, -from the first pull request of Xe towards drm-next. The expectation is that when -both drivers are part of the drm-tip, the introduction of cleaner patches will be -easier and speed up. - -Drm_exec --------- -Helper to make dma_resv locking for a big number of buffers is getting removed in -the drm_exec series proposed in https://patchwork.freedesktop.org/patch/524376/ -If that happens, Xe needs to change and incorporate the changes in the driver. -The goal is to engage with the Community to understand if the best approach is to -move that to the drivers that are using it or if we should keep the helpers in -place waiting for Xe to get merged. - -This item ties into the GPUVA, VM_BIND, and even long-running compute support. - -As a key measurable result, we need to have a community consensus documented in -this document and the Xe driver prepared for the changes, if necessary. - -Xe – uAPI high level overview -============================= - -...Warning: To be done in follow up patches after/when/where the main consensus in various items are individually reached. - -Xe – Pre-Merge Goals - Completed -================================ - Dev_coredump ------------ |