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| author | Danilo Krummrich <dakr@redhat.com> | 2023-11-08 03:12:33 +0300 |
|---|---|---|
| committer | Danilo Krummrich <dakr@redhat.com> | 2023-11-13 20:17:50 +0300 |
| commit | 9297cfc9405bc6b60540b8b8aaf930b7e449e15a (patch) | |
| tree | 48c95de9d5c264dd6f41d7342718327cc6393b8a /drivers/gpu/drm/drm_gpuvm.c | |
| parent | d1adea27d0c8a08031b075f1bf4c5ce6f135ad7c (diff) | |
| download | linux-9297cfc9405bc6b60540b8b8aaf930b7e449e15a.tar.xz | |
drm/gpuvm: export drm_gpuvm_range_valid()
Drivers may use this function to validate userspace requests in advance,
hence export it.
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231108001259.15123-4-dakr@redhat.com
Diffstat (limited to 'drivers/gpu/drm/drm_gpuvm.c')
| -rw-r--r-- | drivers/gpu/drm/drm_gpuvm.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_gpuvm.c b/drivers/gpu/drm/drm_gpuvm.c index 445767f8fbc4..2669f9bbc377 100644 --- a/drivers/gpu/drm/drm_gpuvm.c +++ b/drivers/gpu/drm/drm_gpuvm.c @@ -649,7 +649,18 @@ drm_gpuvm_in_kernel_node(struct drm_gpuvm *gpuvm, u64 addr, u64 range) return krange && addr < kend && kstart < end; } -static bool +/** + * drm_gpuvm_range_valid() - checks whether the given range is valid for the + * given &drm_gpuvm + * @gpuvm: the GPUVM to check the range for + * @addr: the base address + * @range: the range starting from the base address + * + * Checks whether the range is within the GPUVM's managed boundaries. + * + * Returns: true for a valid range, false otherwise + */ +bool drm_gpuvm_range_valid(struct drm_gpuvm *gpuvm, u64 addr, u64 range) { @@ -657,6 +668,7 @@ drm_gpuvm_range_valid(struct drm_gpuvm *gpuvm, drm_gpuvm_in_mm_range(gpuvm, addr, range) && !drm_gpuvm_in_kernel_node(gpuvm, addr, range); } +EXPORT_SYMBOL_GPL(drm_gpuvm_range_valid); /** * drm_gpuvm_init() - initialize a &drm_gpuvm |