gpu: nvgpu: add cycle stats to debugger node

Add NVGPU_DBG_GPU_IOCTL_CYCLE_STATS to debugger node, to
install/uninstall a buffer for cycle stats.

Add NVGPU_DBG_GPU_IOCTL_CYCLE_STATS_SNAPSHOT to debugger
node, to attach/flush/detach a buffer for Mode-E streamout.

Those ioctls will apply to the first channel in the debug session.

Bug 2660206
Bug 200464613

Change-Id: I0b96d9a07c016690140292fa5886fda545697ee6
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2002060
(cherry picked from commit 90b0bf98ac01d7fa24c40f6a1f20bfe5fa481d36)
Signed-off-by: Gagan Grover <ggrover@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2092008
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Phoenix Jung <pjung@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: Peter Daifuku <pdaifuku@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 9 insertions, 2 deletions

diff --git a/drivers/gpu/nvgpu/os/linux/ioctl_channel.h b/drivers/gpu/nvgpu/os/linux/ioctl_channel.h
index 48cff1ea..3e802899 100644
--- a/drivers/gpu/nvgpu/os/linux/ioctl_channel.h
+++ b/drivers/gpu/nvgpu/os/linux/ioctl_channel.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2017-2020, 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,
@@ -36,9 +36,16 @@ long gk20a_channel_ioctl(struct file *filp,
 int gk20a_channel_open_ioctl(struct gk20a *g,
                 struct nvgpu_channel_open_args *args);
 
-int gk20a_channel_free_cycle_stats_snapshot(struct channel_gk20a *ch);
+int gk20a_channel_cycle_stats(struct channel_gk20a *ch, int dmabuf_fd);
 void gk20a_channel_free_cycle_stats_buffer(struct channel_gk20a *ch);
 
+int gk20a_attach_cycle_stats_snapshot(struct channel_gk20a *ch,
+                                u32 dmabuf_fd,
+                                u32 perfmon_id_count,
+                                u32 *perfmon_id_start);
+int gk20a_flush_cycle_stats_snapshot(struct channel_gk20a *ch);
+int gk20a_channel_free_cycle_stats_snapshot(struct channel_gk20a *ch);
+
 extern const struct file_operations gk20a_channel_ops;
 
 u32 nvgpu_get_common_runlist_level(u32 level);