diff options
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_gpusvm.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/drm/drm_gpusvm.h b/include/drm/drm_gpusvm.h index 632e100e6efb..2578ac92a8d4 100644 --- a/include/drm/drm_gpusvm.h +++ b/include/drm/drm_gpusvm.h @@ -328,6 +328,35 @@ void drm_gpusvm_free_pages(struct drm_gpusvm *gpusvm, struct drm_gpusvm_pages *svm_pages, unsigned long npages); +/** + * enum drm_gpusvm_scan_result - Scan result from the drm_gpusvm_scan_mm() function. + * @DRM_GPUSVM_SCAN_UNPOPULATED: At least one page was not present or inaccessible. + * @DRM_GPUSVM_SCAN_EQUAL: All pages belong to the struct dev_pagemap indicated as + * the @pagemap argument to the drm_gpusvm_scan_mm() function. + * @DRM_GPUSVM_SCAN_OTHER: All pages belong to exactly one dev_pagemap, which is + * *NOT* the @pagemap argument to the drm_gpusvm_scan_mm(). All pages belong to + * the same device private owner. + * @DRM_GPUSVM_SCAN_SYSTEM: All pages are present and system pages. + * @DRM_GPUSVM_SCAN_MIXED_DEVICE: All pages are device pages and belong to at least + * two different struct dev_pagemaps. All pages belong to the same device private + * owner. + * @DRM_GPUSVM_SCAN_MIXED: Pages are present and are a mix of system pages + * and device-private pages. All device-private pages belong to the same device + * private owner. + */ +enum drm_gpusvm_scan_result { + DRM_GPUSVM_SCAN_UNPOPULATED, + DRM_GPUSVM_SCAN_EQUAL, + DRM_GPUSVM_SCAN_OTHER, + DRM_GPUSVM_SCAN_SYSTEM, + DRM_GPUSVM_SCAN_MIXED_DEVICE, + DRM_GPUSVM_SCAN_MIXED, +}; + +enum drm_gpusvm_scan_result drm_gpusvm_scan_mm(struct drm_gpusvm_range *range, + void *dev_private_owner, + const struct dev_pagemap *pagemap); + #ifdef CONFIG_LOCKDEP /** * drm_gpusvm_driver_set_lock() - Set the lock protecting accesses to GPU SVM |