gpu: nvgpu: vgpu: get virtual SMs mapping

On gv11b we can have multiple SMs per TPC. Add sm_per_tpc in
vgpu constants to properly dimension the virtual SM to TPC/GPC
mapping in virtualization case.
Use TEGRA_VGPU_CMD_GET_SMS_MAPPING to query current mapping.

Bug 2039676

Change-Id: I817be18f9a28cfb9bd8af207d7d6341a2ec3994b
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1631203
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 15 insertions, 1 deletions

diff --git a/include/linux/tegra_vgpu.h b/include/linux/tegra_vgpu.h
index 7b5c9e11..74148294 100644
--- a/include/linux/tegra_vgpu.h
+++ b/include/linux/tegra_vgpu.h
@@ -1,7 +1,7 @@
 /*
  * Tegra GPU Virtualization Interfaces to Server
  *
- * Copyright (c) 2014-2017, NVIDIA Corporation. All rights reserved.
+ * Copyright (c) 2014-2018, 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,
@@ -111,6 +111,7 @@ enum {
         TEGRA_VGPU_CMD_PERFBUF_MGT = 73,
         TEGRA_VGPU_CMD_GET_TIMESTAMPS_ZIPPER = 74,
         TEGRA_VGPU_CMD_TSG_RELEASE = 75,
+        TEGRA_VGPU_CMD_GET_VSMS_MAPPING = 76,
 };
 
 struct tegra_vgpu_connect_params {
@@ -482,6 +483,7 @@ struct tegra_vgpu_constants_params {
         u32 channel_base;
         struct tegra_vgpu_engines_info engines_info;
         u32 num_pce;
+        u32 sm_per_tpc;
 };
 
 struct tegra_vgpu_channel_cyclestats_snapshot_params {
@@ -530,6 +532,17 @@ struct tegra_vgpu_get_gpu_freq_table_params {
         u32 freqs[TEGRA_VGPU_GPU_FREQ_TABLE_SIZE]; /* in kHz */
 };
 
+struct tegra_vgpu_vsms_mapping_params {
+        u32 num_sm;
+};
+
+struct tegra_vgpu_vsms_mapping_entry {
+        u32 gpc_index;
+        u32 tpc_index;
+        u32 sm_index;
+        u32 global_tpc_index;
+};
+
 struct tegra_vgpu_cmd_msg {
         u32 cmd;
         int ret;
@@ -584,6 +597,7 @@ struct tegra_vgpu_cmd_msg {
                 struct tegra_vgpu_perfbuf_mgt_params perfbuf_management;
                 struct tegra_vgpu_get_timestamps_zipper_params get_timestamps_zipper;
                 struct tegra_vgpu_get_gpu_freq_table_params get_gpu_freq_table;
+                struct tegra_vgpu_vsms_mapping_params vsms_mapping;
 #ifdef CONFIG_TEGRA_19x_GPU
                 union tegra_vgpu_t19x_params t19x;
 #endif