video: tegra: host: gk20a: reduce gr delays

The delay value used in gr usleep_range calls is
too high. We can start at a much lower value.

Bug 200032452

Change-Id: I7d196d0e3be0a5cd84e8c4dad537fae043da6274
Signed-off-by: Prashant Malani <pmalani@nvidia.com>
Reviewed-on: http://git-master/r/335234
(cherry picked from commit 49bb8436a534496c70e6238d3bc20ed280d5b654)
Reviewed-on: http://git-master/r/504632
Reviewed-by: Rajkumar Kasirajan <rkasirajan@nvidia.com>
Tested-by: Rajkumar Kasirajan <rkasirajan@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Winnie Hsu <whsu@nvidia.com>

diff --git a/drivers/gpu/nvgpu/gk20a/gr_gk20a.h b/drivers/gpu/nvgpu/gk20a/gr_gk20a.h
index 05c27ffd8190037836e7028d00bd8ea80589eb80..8a6df3d3229b32e6850a744ce96aa9956398a68a 100644 (file)
--- a/drivers/gpu/nvgpu/gk20a/gr_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gr_gk20a.h
@@ -22,8 +22,8 @@
 
 #include "gr_ctx_gk20a.h"
 
-#define GR_IDLE_CHECK_DEFAULT          100 /* usec */
-#define GR_IDLE_CHECK_MAX              5000 /* usec */
+#define GR_IDLE_CHECK_DEFAULT          10 /* usec */
+#define GR_IDLE_CHECK_MAX              200 /* usec */
 
 #define INVALID_SCREEN_TILE_ROW_OFFSET 0xFFFFFFFF
 #define INVALID_MAX_WAYS               0xFFFFFFFF