gpu: nvgpu: support for hwpm context switching

Add support for hwpm context switching

Bug 1648200

Change-Id: I482899bf165cd2ef24bb8617be16df01218e462f
Signed-off-by: Peter Daifuku <pdaifuku@nvidia.com>
Reviewed-on: http://git-master/r/1120450
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 13 insertions, 1 deletions

diff --git a/include/uapi/linux/nvgpu.h b/include/uapi/linux/nvgpu.h
index 45d1c217..a75a5ae0 100644
--- a/include/uapi/linux/nvgpu.h
+++ b/include/uapi/linux/nvgpu.h
@@ -647,8 +647,20 @@ struct nvgpu_dbg_gpu_set_next_stop_trigger_type_args {
         _IOWR(NVGPU_DBG_GPU_IOCTL_MAGIC, 12, struct nvgpu_dbg_gpu_set_next_stop_trigger_type_args)
 
 
+/* PM Context Switch Mode */
+#define NVGPU_DBG_GPU_HWPM_CTXSW_MODE_NO_CTXSW               (0x00000000)
+#define NVGPU_DBG_GPU_HWPM_CTXSW_MODE_CTXSW                  (0x00000001)
+
+struct nvgpu_dbg_gpu_hwpm_ctxsw_mode_args {
+        __u32 mode;
+        __u32 reserved;
+};
+
+#define NVGPU_DBG_GPU_IOCTL_HWPM_CTXSW_MODE \
+        _IOWR(NVGPU_DBG_GPU_IOCTL_MAGIC, 13, struct nvgpu_dbg_gpu_hwpm_ctxsw_mode_args)
+
 #define NVGPU_DBG_GPU_IOCTL_LAST                \
-        _IOC_NR(NVGPU_DBG_GPU_IOCTL_SET_NEXT_STOP_TRIGGER_TYPE)
+        _IOC_NR(NVGPU_DBG_GPU_IOCTL_HWPM_CTXSW_MODE)
 
 #define NVGPU_DBG_GPU_IOCTL_MAX_ARG_SIZE                \
         sizeof(struct nvgpu_dbg_gpu_perfbuf_map_args)