public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-08-05 16:54:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

drm/gpuvm: export drm_gpuvm_range_valid()

Browse source 
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
This commit is contained in:
Danilo Krummrich 2023-11-08 01:12:33 +01:00
parent d1adea27d0
commit 9297cfc940
2 changed files with 14 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
drivers/gpu/drm/drm_gpuvm.c
View file

@ -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

1
include/drm/drm_gpuvm.h
View file

@ -253,6 +253,7 @@ void drm_gpuvm_init(struct drm_gpuvm *gpuvm, const char *name,
const struct drm_gpuvm_ops *ops);
void drm_gpuvm_destroy(struct drm_gpuvm *gpuvm);
bool drm_gpuvm_range_valid(struct drm_gpuvm *gpuvm, u64 addr, u64 range);
bool drm_gpuvm_interval_empty(struct drm_gpuvm *gpuvm, u64 addr, u64 range);
static inline struct drm_gpuva *