gpu: nvgpu: detect vidmem configuration from HW

Read video memory size from hardware during initialization for devices
that support it.

JIRA DNVGPU-14

Change-Id: If190f2d89f7148520ee274ca674f972987c8056d
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: http://git-master/r/1157215
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index c7d12f86..6622dad0 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -524,6 +524,7 @@ struct gpu_ops {
                 u64 (*get_iova_addr)(struct gk20a *g, struct scatterlist *sgl,
                                          u32 flags);
                 int (*bar1_bind)(struct gk20a *g, u64 bar1_iova);
+                size_t (*get_vidmem_size)(struct gk20a *g);
         } mm;
         struct {
                 int (*init_therm_setup_hw)(struct gk20a *g);