drm/ttm: Add an allocation flag to propagate -ENOSPC on OOM

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Some graphics APIs differentiate between out-of-graphics-memory and
out-of-host-memory (system memory). Add a device init flag to have -ENOSPC
propagated from the resource managers instead of being converted to
-ENOMEM, to aid driver stacks in determining what error code to return or
whether corrective action can be taken at the driver level.

Co-developed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>
Link: https://lore.kernel.org/r/20251020115411.36818-7-tvrtko.ursulin@igalia.com

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Tvrtko Ursulin 2025-10-20 12:54:11 +01:00 • committed by Tvrtko Ursulin

parent ccbadd9eea

commit 402b3a8650

4 changed files with 10 additions and 1 deletions

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4

drivers/gpu/drm/ttm/ttm_bo.c

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1

drivers/gpu/drm/ttm/ttm_device.c

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1

include/drm/ttm/ttm_allocation.h

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5

include/drm/ttm/ttm_device.h

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