gpu: nvgpu: Program NISO sysmem flush addr

Program sysmem flush address to prevent random accesses of
address 0.

Change-Id: I886170395f036805f02e0bce7ecd3c8c46b921df
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1129216
GVS: Gerrit_Virtual_Submit
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/hw_fb_gk20a.h b/drivers/gpu/nvgpu/gk20a/hw_fb_gk20a.h
index 46846b21..b9e124b7 100644
--- a/drivers/gpu/nvgpu/gk20a/hw_fb_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/hw_fb_gk20a.h
@@ -250,4 +250,8 @@ static inline u32 fb_mmu_vpr_info_fetch_true_v(void)
 {
         return 0x00000001;
 }
+static inline u32 fb_niso_flush_sysmem_addr_r(void)
+{
+        return 0x00100c10;
+}
 #endif