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authorLinus Torvalds <torvalds@linux-foundation.org>2019-11-30 09:38:11 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-11-30 09:38:11 -0800
commitd5bb349dbbe27537e90a03b9597deeb07723a86d (patch)
treeb5ad5b6996bf1fb51c84fb252f2ddf9316ee7d81 /include/drm
parent81b6b96475ac7a4ebfceae9f16fb3758327adbfe (diff)
parent0a6cad5df541108cfd3fbd79eef48eb824c89bdc (diff)
Merge tag 'drm-vmwgfx-coherent-2019-11-29' of git://anongit.freedesktop.org/drm/drm
Pull drm coherent memory support for vmwgfx from Dave Airlie: "This is a separate pull for the mm pagewalking + drm/vmwgfx work Thomas did and you were involved in, I've left it separate in case you don't feel as comfortable with it as the other stuff. It has mm acks/r-b in the right places from what I can see" * tag 'drm-vmwgfx-coherent-2019-11-29' of git://anongit.freedesktop.org/drm/drm: drm/vmwgfx: Add surface dirty-tracking callbacks drm/vmwgfx: Implement an infrastructure for read-coherent resources drm/vmwgfx: Use an RBtree instead of linked list for MOB resources drm/vmwgfx: Implement an infrastructure for write-coherent resources mm: Add write-protect and clean utilities for address space ranges mm: Add a walk_page_mapping() function to the pagewalk code mm: pagewalk: Take the pagetable lock in walk_pte_range() mm: Remove BUG_ON mmap_sem not held from xxx_trans_huge_lock() drm/ttm: Convert vm callbacks to helpers drm/ttm: Remove explicit typecasts of vm_private_data
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/ttm/ttm_bo_api.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 54fa457b26ab..65e399d280f7 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -727,4 +727,18 @@ static inline bool ttm_bo_uses_embedded_gem_object(struct ttm_buffer_object *bo)
{
return bo->base.dev != NULL;
}
+
+/* Default number of pre-faulted pages in the TTM fault handler */
+#define TTM_BO_VM_NUM_PREFAULT 16
+
+vm_fault_t ttm_bo_vm_reserve(struct ttm_buffer_object *bo,
+ struct vm_fault *vmf);
+
+vm_fault_t ttm_bo_vm_fault_reserved(struct vm_fault *vmf,
+ pgprot_t prot,
+ pgoff_t num_prefault);
+
+void ttm_bo_vm_open(struct vm_area_struct *vma);
+
+void ttm_bo_vm_close(struct vm_area_struct *vma);
#endif