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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.h | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.h')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.h new file mode 100644 index 0000000000..e2edcd010c --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.h @@ -0,0 +1,53 @@ +/* + * Copyright 2017 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Christian König + */ +#ifndef __AMDGPU_MN_H__ +#define __AMDGPU_MN_H__ + +#include <linux/types.h> +#include <linux/hmm.h> +#include <linux/rwsem.h> +#include <linux/workqueue.h> +#include <linux/interval_tree.h> +#include <linux/mmu_notifier.h> + +int amdgpu_hmm_range_get_pages(struct mmu_interval_notifier *notifier, + uint64_t start, uint64_t npages, bool readonly, + void *owner, struct page **pages, + struct hmm_range **phmm_range); +bool amdgpu_hmm_range_get_pages_done(struct hmm_range *hmm_range); + +#if defined(CONFIG_HMM_MIRROR) +int amdgpu_hmm_register(struct amdgpu_bo *bo, unsigned long addr); +void amdgpu_hmm_unregister(struct amdgpu_bo *bo); +#else +static inline int amdgpu_hmm_register(struct amdgpu_bo *bo, unsigned long addr) +{ + DRM_WARN_ONCE("HMM_MIRROR kernel config option is not enabled, " + "add CONFIG_ZONE_DEVICE=y in config file to fix this\n"); + return -ENODEV; +} +static inline void amdgpu_hmm_unregister(struct amdgpu_bo *bo) {} +#endif + +#endif |