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| author | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2020-12-15 13:05:43 +0300 |
|---|---|---|
| committer | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2020-12-15 13:05:43 +0300 |
| commit | ae75a0431f822273ce5d3a574863c67503db5775 (patch) | |
| tree | 1361bf5e24d1d38f993c08583f42eda4fb28b42e /include/xen/grant_table.h | |
| parent | 91def3cce986238db7c06af083b8e9e30372a895 (diff) | |
| parent | 5fbd41d3bf123af6a135bdea564087ec0f563eb0 (diff) | |
| download | linux-ae75a0431f822273ce5d3a574863c67503db5775.tar.xz | |
Merge drm/drm-next into drm-misc-next
Required backmerge since we will be based on top of v5.11, and there
has been a request to backmerge already to upstream some features.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Diffstat (limited to 'include/xen/grant_table.h')
| -rw-r--r-- | include/xen/grant_table.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/xen/grant_table.h b/include/xen/grant_table.h index 9bc5bc07d4d3..b9c937b3a149 100644 --- a/include/xen/grant_table.h +++ b/include/xen/grant_table.h @@ -198,6 +198,23 @@ void gnttab_free_auto_xlat_frames(void); int gnttab_alloc_pages(int nr_pages, struct page **pages); void gnttab_free_pages(int nr_pages, struct page **pages); +struct gnttab_page_cache { + spinlock_t lock; +#ifdef CONFIG_XEN_UNPOPULATED_ALLOC + struct page *pages; +#else + struct list_head pages; +#endif + unsigned int num_pages; +}; + +void gnttab_page_cache_init(struct gnttab_page_cache *cache); +int gnttab_page_cache_get(struct gnttab_page_cache *cache, struct page **page); +void gnttab_page_cache_put(struct gnttab_page_cache *cache, struct page **page, + unsigned int num); +void gnttab_page_cache_shrink(struct gnttab_page_cache *cache, + unsigned int num); + #ifdef CONFIG_XEN_GRANT_DMA_ALLOC struct gnttab_dma_alloc_args { /* Device for which DMA memory will be/was allocated. */ |