gpu: nvgpu: Set compression page per SoC

Compression page size varies depending on architecture. Make it
129kB on gk20a and gm20b.

Also export some common functions from gm20b.

Bug 1592495

Change-Id: Ifb1c5b15d25fa961dab097021080055fc385fecd
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/673790

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index b9796faa..4fbc25be 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -167,6 +167,7 @@ struct gpu_ops {
                 void (*init_uncompressed_kind_map)(struct gk20a *g);
                 void (*init_kind_attr)(struct gk20a *g);
                 void (*set_mmu_page_size)(struct gk20a *g);
+                int (*compression_page_size)(struct gk20a *g);
         } fb;
         struct {
                 void (*slcg_bus_load_gating_prod)(struct gk20a *g, bool prod);