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, 0 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/vgpu/mm_vgpu.c b/drivers/gpu/nvgpu/vgpu/mm_vgpu.c
index 2dd8cb68..6817b107 100644
--- a/drivers/gpu/nvgpu/vgpu/mm_vgpu.c
+++ b/drivers/gpu/nvgpu/vgpu/mm_vgpu.c
@@ -39,7 +39,6 @@ static int vgpu_init_mm_setup_sw(struct gk20a *g)
 
         /* gk20a_init_gpu_characteristics expects this to be populated */
         vm->big_page_size = big_page_size;
-        vm->compression_page_size = big_page_size;
         vm->pde_stride    = vm->big_page_size << 10;
         vm->pde_stride_shift = ilog2(vm->pde_stride);