gpu: nvgpu: vgpu: profiler reservation support

Support for hwpm reservations in the virtual case:

- Add session ops for checking and setting global and context reservations, and
  releasing reservations
- in the native case, these just update reservation counts and flags
- in the vgpu case, when the reservation count is 0, check with the RM server
  that a reservation is possible: for global reservations, no other guest
  can have a reservation; for context reservations, no other guest can have
  a global reservation
- in the vgpu case, when the reservation count is decremented to 0, notify
  the RM server that the guest no longer has any reservations

Bug 1775465
JIRA VFND-3428

Change-Id: Idf115b730e465e35d0745c96a8f8ab6b645c7cae
Signed-off-by: Peter Daifuku <pdaifuku@nvidia.com>
Reviewed-on: http://git-master/r/1323375
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/include/linux/tegra_vgpu.h b/include/linux/tegra_vgpu.h
index c0964083..bb9bdcab 100644
--- a/include/linux/tegra_vgpu.h
+++ b/include/linux/tegra_vgpu.h
@@ -102,6 +102,7 @@ enum {
         TEGRA_VGPU_CMD_SUSPEND_CONTEXTS = 66,
         TEGRA_VGPU_CMD_RESUME_CONTEXTS = 67,
         TEGRA_VGPU_CMD_CLEAR_SM_ERROR_STATE = 68,
+        TEGRA_VGPU_CMD_PROF_MGT = 72,
 };
 
 struct tegra_vgpu_connect_params {
@@ -469,6 +470,16 @@ struct tegra_vgpu_clear_sm_error_state {
         u32 sm_id;
 };
 
+enum {
+        TEGRA_VGPU_PROF_GET_GLOBAL = 0,
+        TEGRA_VGPU_PROF_GET_CONTEXT,
+        TEGRA_VGPU_PROF_RELEASE
+};
+
+struct tegra_vgpu_prof_mgt_params {
+        u32 mode;
+};
+
 struct tegra_vgpu_cmd_msg {
         u32 cmd;
         int ret;
@@ -518,6 +529,7 @@ struct tegra_vgpu_cmd_msg {
                 struct tegra_vgpu_suspend_resume_contexts suspend_contexts;
                 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;
                 char padding[192];
         } params;
 };