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| author | David Francis <David.Francis@amd.com> | 2025-06-16 09:49:33 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-09-02 15:53:33 -0400 |
| commit | 4d82724f7f2b847eb0454b1aab5450545b39abd4 (patch) | |
| tree | 663aaf1f17301f451bd9ca203137ab781218e491 /include | |
| parent | drm/amdgpu: Add ioctl to get all gem handles for a process (diff) | |
| download | linux-4d82724f7f2b847eb0454b1aab5450545b39abd4.tar.gz linux-4d82724f7f2b847eb0454b1aab5450545b39abd4.zip | |
drm/amdgpu: Add mapping info option for GEM_OP ioctl
Add new GEM_OP_IOCTL option GET_MAPPING_INFO, which
returns a list of mappings associated with a given bo, along with
their positions and offsets.
Userspace for this and the previous change can be found at:
https://github.com/checkpoint-restore/criu/pull/2613
Signed-off-by: David Francis <David.Francis@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/drm/amdgpu_drm.h | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h index 902e30263fcc..9cebd072a042 100644 --- a/include/uapi/drm/amdgpu_drm.h +++ b/include/uapi/drm/amdgpu_drm.h @@ -802,6 +802,21 @@ union drm_amdgpu_wait_fences { #define AMDGPU_GEM_OP_GET_GEM_CREATE_INFO 0 #define AMDGPU_GEM_OP_SET_PLACEMENT 1 +#define AMDGPU_GEM_OP_GET_MAPPING_INFO 2 + +struct drm_amdgpu_gem_vm_entry { + /* Start of mapping (in bytes) */ + __u64 addr; + + /* Size of mapping (in bytes) */ + __u64 size; + + /* Mapping offset */ + __u64 offset; + + /* flags needed to recreate mapping */ + __u64 flags; +}; /* Sets or returns a value associated with a buffer. */ struct drm_amdgpu_gem_op { @@ -809,8 +824,12 @@ struct drm_amdgpu_gem_op { __u32 handle; /** AMDGPU_GEM_OP_* */ __u32 op; - /** Input or return value */ + /** Input or return value. For MAPPING_INFO op: pointer to array of struct drm_amdgpu_gem_vm_entry */ __u64 value; + /** For MAPPING_INFO op: number of mappings (in/out) */ + __u32 num_entries; + + __u32 padding; }; #define AMDGPU_GEM_LIST_HANDLES_FLAG_IS_IMPORT (1 << 0) |