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, 10 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index 25bcd895..30f1b371 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -28,6 +28,7 @@ struct gk20a_fecs_trace;
 struct gk20a_ctxsw_trace;
 struct acr_desc;
 struct nvgpu_mem_alloc_tracker;
+struct dbg_profiler_object_data;
 
 #include <linux/sched.h>
 #include <nvgpu/lock.h>
@@ -758,6 +759,15 @@ struct gpu_ops {
                             u64 num_ops);
                 int (*dbg_set_powergate)(struct dbg_session_gk20a *dbg_s,
                                         u32 mode);
+                bool (*check_and_set_global_reservation)(
+                                struct dbg_session_gk20a *dbg_s,
+                                struct dbg_profiler_object_data *prof_obj);
+                bool (*check_and_set_context_reservation)(
+                                struct dbg_session_gk20a *dbg_s,
+                                struct dbg_profiler_object_data *prof_obj);
+                void (*release_profiler_reservation)(
+                                struct dbg_session_gk20a *dbg_s,
+                                struct dbg_profiler_object_data *prof_obj);
         } dbg_session_ops;
         struct {
                 void (*get_program_numbers)(struct gk20a *g,