gpu: nvgpu: Per-SoC compressible page size

Define smallest compressible page size per SoC, and use that for
determining if a compressible kind should be downgraded to
uncompressed.

Bug 1605769

Change-Id: I7c9991ba0ae82fe533641f045e506c0b01a10d8b
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/724492

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index 19c9e786..2b905dcc 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -182,6 +182,7 @@ struct gpu_ops {
                 void (*init_kind_attr)(struct gk20a *g);
                 void (*set_mmu_page_size)(struct gk20a *g);
                 int (*compression_page_size)(struct gk20a *g);
+                int (*compressible_page_size)(struct gk20a *g);
                 void (*dump_vpr_wpr_info)(struct gk20a *g);
         } fb;
         struct {