gpu: nvgpu: vgpu: perfbuffer support

Add vgpu support for ModeE perfbuffers

- VM allocation is handled by the kernel, with final mapping
  handled by the RM server
- Enabling/disabling the perfbuffer is handled by the RM server

Bug 1880196
JIRA EVLR-1074

Change-Id: Ifbeb5ede6b07e2e112b930c602c22b66a58ac920
Signed-off-by: Peter Daifuku <pdaifuku@nvidia.com>
Reviewed-on: https://git-master/r/1506747
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/tegra_vgpu.h b/include/linux/tegra_vgpu.h
index f0a809ba..eb510438 100644
--- a/include/linux/tegra_vgpu.h
+++ b/include/linux/tegra_vgpu.h
@@ -104,6 +104,7 @@ enum {
         TEGRA_VGPU_CMD_GET_GPU_FREQ_TABLE = 70,
         TEGRA_VGPU_CMD_CAP_GPU_CLK_RATE = 71,
         TEGRA_VGPU_CMD_PROF_MGT = 72,
+        TEGRA_VGPU_CMD_PERFBUF_MGT = 73,
         TEGRA_VGPU_CMD_GET_TIMESTAMPS_ZIPPER = 74,
 };
 
@@ -488,6 +489,12 @@ struct tegra_vgpu_prof_mgt_params {
         u32 mode;
 };
 
+struct tegra_vgpu_perfbuf_mgt_params {
+        u64 vm_handle;
+        u64 offset;
+        u32 size;
+};
+
 #define TEGRA_VGPU_GPU_FREQ_TABLE_SIZE          25
 
 struct tegra_vgpu_get_gpu_freq_table_params {
@@ -545,6 +552,7 @@ struct tegra_vgpu_cmd_msg {
                 struct tegra_vgpu_suspend_resume_contexts resume_contexts;
                 struct tegra_vgpu_clear_sm_error_state clear_sm_error_state;
                 struct tegra_vgpu_prof_mgt_params prof_management;
+                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;
                 char padding[192];