gpu: nvgpu: vgpu: cyclestat snapshot support

Add support for cyclestats snapshots in the virtual case

Bug 1700143
JIRA EVLR-278

Change-Id: I376a8804d57324f43eb16452d857a3b7bb0ecc90
Signed-off-by: Peter Daifuku <pdaifuku@nvidia.com>
Reviewed-on: http://git-master/r/1211547
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/include/linux/tegra_vgpu.h b/include/linux/tegra_vgpu.h
index fdab9b06..be8b9ad1 100644
--- a/include/linux/tegra_vgpu.h
+++ b/include/linux/tegra_vgpu.h
@@ -97,6 +97,7 @@ enum {
         TEGRA_VGPU_CMD_SET_POWERGATE = 60,
         TEGRA_VGPU_CMD_SET_GPU_CLK_RATE = 61,
         TEGRA_VGPU_CMD_GET_CONSTANTS = 62,
+        TEGRA_VGPU_CMD_CHANNEL_CYCLESTATS_SNAPSHOT = 63,
 };
 
 struct tegra_vgpu_connect_params {
@@ -437,6 +438,15 @@ struct tegra_vgpu_constants_params {
         u16 gpc_tpc_mask[TEGRA_VGPU_MAX_GPC_COUNT];
 };
 
+struct tegra_vgpu_channel_cyclestats_snapshot_params {
+        u64 handle;
+        u32 perfmon_start;
+        u32 perfmon_count;
+        u32 buf_info; /* client->srvr: get ptr; srvr->client: num pending */
+        u8 subcmd;
+        u8 hw_overflow;
+};
+
 struct tegra_vgpu_cmd_msg {
         u32 cmd;
         int ret;
@@ -481,6 +491,7 @@ struct tegra_vgpu_cmd_msg {
                 struct tegra_vgpu_set_powergate_params set_powergate;
                 struct tegra_vgpu_gpu_clk_rate_params gpu_clk_rate;
                 struct tegra_vgpu_constants_params constants;
+                struct tegra_vgpu_channel_cyclestats_snapshot_params cyclestats_snapshot;
                 char padding[192];
         } params;
 };