kernel/linux.git/include/drm/ttm, branch v5.13.1

Merge drm/drm-fixes into drm-next

2021-04-13T21:15:09+00:00

msm-next pull request has a baseline with stuff from -fixes, roll forward first. Some simple conflicts in amdgpu, ttm and one in i915 where git gets confused and tries to add the same function twice. Signed-off-by: Daniel Vetter

drm/ttm: switch back to static allocation limits for now

2021-03-29T09:05:36+00:00

The shrinker based approach still has some flaws. Especially that we need temporary pages to free up the pages allocated to the driver is problematic in a shrinker. Signed-off-by: Christian König Acked-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20210324134845.2338-1-christian.koenig@amd.com

drm/ttm: switch to per device LRU lock

2021-03-24T16:05:25+00:00

Instead of having a global lock for potentially less contention. Signed-off-by: Christian König Tested-by: Nirmoy Das Reviewed-by: Huang Rui Reviewed-by: Matthew Auld Link: https://patchwork.freedesktop.org/patch/424010/

drm/ttm: remove swap LRU v3

2021-03-24T16:05:14+00:00

Instead evict round robin from each devices SYSTEM and TT domain. v2: reorder num_pages access reported by Dan's script v3: fix rebase fallout, num_pages should be 32bit Signed-off-by: Christian König Tested-by: Nirmoy Das Reviewed-by: Huang Rui Reviewed-by: Matthew Auld Link: https://patchwork.freedesktop.org/patch/424009/

drm/ttm: move swapout logic around v3

2021-03-24T16:05:07+00:00

Move the iteration of the global lru into the new function ttm_global_swapout() and use that instead in drivers. v2: consistently return int v3: fix build fail Signed-off-by: Christian König Tested-by: Nirmoy Das Reviewed-by: Huang Rui Reviewed-by: Matthew Auld Link: https://patchwork.freedesktop.org/patch/424008/

drm/ttm: make ttm_bo_unpin more defensive

2021-03-15T15:02:30+00:00

We seem to have some more driver bugs than thought. Signed-off-by: Christian König Fixes: deb0814b43f3 ("drm/ttm: add ttm_bo_pin()/ttm_bo_unpin() v2") Acked-by: Matthew Auld Link: https://patchwork.freedesktop.org/patch/msgid/20210312093810.2202-1-christian.koenig@amd.com

drm/ttm: move memory accounting into vmwgfx v4

2021-02-09T16:27:33+00:00

This is just another feature which is only used by VMWGFX, so move it into the driver instead. I've tried to add the accounting sysfs file to the kobject of the drm minor, but I'm not 100% sure if this works as expected. v2: fix typo in KFD and avoid 64bit divide v3: fix init order in VMWGFX v4: use pdev sysfs reference instead of drm Signed-off-by: Christian König Reviewed-by: Zack Rusin (v3) Tested-by: Nirmoy Das Link: https://patchwork.freedesktop.org/patch/msgid/20210208133226.36955-2-christian.koenig@amd.com

drm/ttm: rework ttm_tt page limit v4

2021-02-09T16:27:12+00:00

TTM implements a rather extensive accounting of allocated memory. There are two reasons for this: 1. It tries to block userspace allocating a huge number of very small BOs without accounting for the kmalloced memory. 2. Make sure we don't over allocate and run into an OOM situation during swapout while trying to handle the memory shortage. This is only partially a good idea. First of all it is perfectly valid for an application to use all of system memory, limiting it to 50% is not really acceptable. What we need to take care of is that the application is held accountable for the memory it allocated. This is what control mechanisms like memcg and the normal Linux page accounting already do. Making sure that we don't run into an OOM situation while trying to cope with a memory shortage is still a good idea, but this is also not very well implemented since it means another opportunity of recursion from the driver back into TTM. So start to rework all of this by implementing a shrinker callback which allows for TT object to be swapped out if necessary. v2: Switch from limit to shrinker callback. v3: fix gfp mask handling, use atomic for swapable_pages, add debugfs v4: drop the extra gfp_mask checks Signed-off-by: Christian König Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20210208133226.36955-1-christian.koenig@amd.com

drm/ttm: fix removal of bo_count sysfs file

2021-02-09T15:34:43+00:00

Only a zombie leftover from rebasing. Signed-off-by: Christian König Fixes: 3763d635deaa ("drm/ttm: add debugfs directory v2") Reported-by: Gerd Hoffmann Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20210209131756.24650-1-christian.koenig@amd.com

drm/ttm: device naming cleanup

2021-01-21T13:51:45+00:00

Rename ttm_bo_device to ttm_device. Rename ttm_bo_driver to ttm_device_funcs. Rename ttm_bo_global to ttm_global. Move global and device related functions to ttm_device.[ch]. No functional change. Signed-off-by: Christian König Acked-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/415222/