1 files changed, 19 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
index 0ff11d09..e07b95fe 100644
--- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
@@ -186,7 +186,13 @@ struct mapped_buffer_node {
         u32 ctag_offset;
         u32 ctag_lines;
         u32 ctag_allocated_lines;
+
+        /* For comptag mapping, these are the mapping window parameters */
         bool ctags_mappable;
+        u64 ctag_map_win_addr; /* non-zero if mapped */
+        u64 ctag_map_win_size; /* non-zero if ctags_mappable */
+        u32 ctag_map_win_ctagline; /* ctagline at win start, set if
+                                    * ctags_mappable */
 
         u32 flags;
         u32 kind;
@@ -504,6 +510,19 @@ u64 gk20a_vm_map(struct vm_gk20a *vm,
                  u64 buffer_offset,
                  u64 mapping_size);
 
+int gk20a_vm_get_compbits_info(struct vm_gk20a *vm,
+                               u64 mapping_gva,
+                               u64 *compbits_win_size,
+                               u32 *compbits_win_ctagline,
+                               u32 *mapping_ctagline,
+                               u32 *flags);
+
+int gk20a_vm_map_compbits(struct vm_gk20a *vm,
+                          u64 mapping_gva,
+                          u64 *compbits_win_gva,
+                          u64 *mapping_iova,
+                          u32 flags);
+
 /* unmap handle from kernel */
 void gk20a_vm_unmap(struct vm_gk20a *vm, u64 offset);