1 files changed, 17 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index a361648f..c6bc129f 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -446,8 +446,25 @@ struct gpu_ops {
                 void (*init_kind_attr)(struct gk20a *g);
                 void (*set_mmu_page_size)(struct gk20a *g);
                 bool (*set_use_full_comp_tag_line)(struct gk20a *g);
+
+                /*
+                 * Compression tag line coverage. When mapping a compressible
+                 * buffer, ctagline is increased when the virtual address
+                 * crosses over the compression page boundary.
+                 */
                 unsigned int (*compression_page_size)(struct gk20a *g);
+
+                /*
+                 * Minimum page size that can be used for compressible kinds.
+                 */
                 unsigned int (*compressible_page_size)(struct gk20a *g);
+
+                /*
+                 * Compressible kind mappings: Mask for the virtual and physical
+                 * address bits that must match.
+                 */
+                u32 (*compression_align_mask)(struct gk20a *g);
+
                 void (*dump_vpr_wpr_info)(struct gk20a *g);
                 int (*vpr_info_fetch)(struct gk20a *g);
                 void (*read_wpr_info)(struct gk20a *g,