2 files changed, 6 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.c b/drivers/gpu/nvgpu/gk20a/gk20a.c
index 1000eba2..4ddb244b 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.c
@@ -1962,6 +1962,7 @@ int gk20a_do_unidle(void)
 int gk20a_init_gpu_characteristics(struct gk20a *g)
 {
         struct nvgpu_gpu_characteristics *gpu = &g->gpu_characteristics;
+        struct gk20a_platform *platform = platform_get_drvdata(g->dev);
 
         gpu->L2_cache_size = g->ops.ltc.determine_L2_size_bytes(g);
         gpu->on_board_video_memory_size = 0; /* integrated GPU */
@@ -2029,6 +2030,8 @@ int gk20a_init_gpu_characteristics(struct gk20a *g)
 
         gpu->map_buffer_batch_limit = 256;
 
+        gpu->max_freq = platform->clk_round_rate(g->dev, UINT_MAX);
+
         return 0;
 }
 
diff --git a/include/uapi/linux/nvgpu.h b/include/uapi/linux/nvgpu.h
index 1172a07e..984d1319 100644
--- a/include/uapi/linux/nvgpu.h
+++ b/include/uapi/linux/nvgpu.h
@@ -1,7 +1,7 @@
 /*
  * NVGPU Public Interface Header
  *
- * Copyright (c) 2011-2015, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2011-2016, NVIDIA CORPORATION.  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -179,6 +179,8 @@ struct nvgpu_gpu_characteristics {
          * num_maps */
         __u32 map_buffer_batch_limit;
 
+        __u64 max_freq;
+
         /* Notes:
            - This struct can be safely appended with new fields. However, always
              keep the structure size multiple of 8 and make sure that the binary