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| author | Joel Fernandes <joelagnelf@nvidia.com> | 2026-02-06 08:52:38 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2026-02-06 11:38:35 +1000 |
| commit | ba110db8e1bc206c13fd7d985e79b033f53bfdea (patch) | |
| tree | 0dac8e37746d7c7ebb4e8e971a9d7a928486c3fa /drivers/gpu/tests/gpu_random.h | |
| parent | 4a9671a03f2be13acde0cb15c5208767a9cc56e4 (diff) | |
| download | linux-ba110db8e1bc206c13fd7d985e79b033f53bfdea.tar.gz linux-ba110db8e1bc206c13fd7d985e79b033f53bfdea.zip | |
gpu: Move DRM buddy allocator one level up (part two)
Move the DRM buddy allocator one level up so that it can be used by GPU
drivers (example, nova-core) that have usecases other than DRM (such as
VFIO vGPU support). Modify the API, structures and Kconfigs to use
"gpu_buddy" terminology. Adapt the drivers and tests to use the new API.
The commit cannot be split due to bisectability, however no functional
change is intended. Verified by running K-UNIT tests and build tested
various configurations.
Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
[airlied: I've split this into two so git can find copies easier.
I've also just nuked drm_random library, that stuff needs to be done
elsewhere and only the buddy tests seem to be using it].
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/tests/gpu_random.h')
| -rw-r--r-- | drivers/gpu/tests/gpu_random.h | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/gpu/tests/gpu_random.h b/drivers/gpu/tests/gpu_random.h index 9f827260a89d..b68cf3448264 100644 --- a/drivers/gpu/tests/gpu_random.h +++ b/drivers/gpu/tests/gpu_random.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __DRM_RANDOM_H__ -#define __DRM_RANDOM_H__ +#ifndef __GPU_RANDOM_H__ +#define __GPU_RANDOM_H__ /* This is a temporary home for a couple of utility functions that should * be transposed to lib/ at the earliest convenience. @@ -8,21 +8,21 @@ #include <linux/prandom.h> -#define DRM_RND_STATE_INITIALIZER(seed__) ({ \ +#define GPU_RND_STATE_INITIALIZER(seed__) ({ \ struct rnd_state state__; \ prandom_seed_state(&state__, (seed__)); \ state__; \ }) -#define DRM_RND_STATE(name__, seed__) \ - struct rnd_state name__ = DRM_RND_STATE_INITIALIZER(seed__) +#define GPU_RND_STATE(name__, seed__) \ + struct rnd_state name__ = GPU_RND_STATE_INITIALIZER(seed__) -unsigned int *drm_random_order(unsigned int count, +unsigned int *gpu_random_order(unsigned int count, struct rnd_state *state); -void drm_random_reorder(unsigned int *order, +void gpu_random_reorder(unsigned int *order, unsigned int count, struct rnd_state *state); -u32 drm_prandom_u32_max_state(u32 ep_ro, +u32 gpu_prandom_u32_max_state(u32 ep_ro, struct rnd_state *state); -#endif /* !__DRM_RANDOM_H__ */ +#endif /* !__GPU_RANDOM_H__ */ |