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| author | Maarten Lankhorst <dev@lankhorst.se> | 2024-12-04 16:44:03 +0300 |
|---|---|---|
| committer | Maxime Ripard <mripard@kernel.org> | 2025-01-10 11:54:49 +0300 |
| commit | 2b624a2c18656ea32e0849e7bc0018ba3c97ca64 (patch) | |
| tree | ab017b2eee0aeb1c02fb45f9fffa7b9be11b7bdc /drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | |
| parent | 7b0af165e2d4b612de5c40daa586d3b9a40b3af6 (diff) | |
| download | linux-2b624a2c18656ea32e0849e7bc0018ba3c97ca64.tar.xz | |
drm/ttm: Handle cgroup based eviction in TTM
cgroup resource allocation has to be handled in TTM, so -EAGAIN from
cgroups can be converted into -ENOSPC, and the limitcg can be properly
evicted in ttm code.
When hitting a resource limit through -EAGAIN, the cgroup for which the
limit is hit is also returned. This allows eviction to delete only from
cgroups which are a subgroup of the current cgroup.
The returned CSS is used to determine if eviction is valuable for a
given resource, and allows TTM to only target specific resources to
lower memory usage.
Co-developed-by: Friedrich Vock <friedrich.vock@gmx.de>
Signed-off-by: Friedrich Vock <friedrich.vock@gmx.de>
Co-developed-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20241204134410.1161769-4-dev@lankhorst.se
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c')
0 files changed, 0 insertions, 0 deletions