gpu: nvgpu: Export pde coverage

This patch adds a field to the gpu capability ioctl to allow
requesting the maximum VA a single PDE entry can hold.

Bug 1456570

Change-Id: I5cf29c8816fa6ea396c36419e6821c27a805b8af
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.c b/drivers/gpu/nvgpu/gk20a/gk20a.c
index 4cc500de..ad35c9ae 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.c
@@ -1602,6 +1602,8 @@ int gk20a_init_gpu_characteristics(struct gk20a *g)
 
         gpu->big_page_size = g->mm.big_page_size;
         gpu->compression_page_size = g->mm.compression_page_size;
+        gpu->pde_coverage_bit_count = g->mm.pde_stride_shift;
+        gpu->reserved = 0;
 
         return 0;
 }