gpu: nvgpu: reorganize PMU init

- Moved PMU init code from pmu_gk20a.c to
"drivers/gpu/nvgpu/common/pmu/pmu.c" file
- Moved below related methods
  SW/HW init,
  init msg handler,
  deinit/destroy,
  PMU state machine
-Created HAL methods to read message queue tail
& supported mutex count.
-prepend with nvgpu_ for pmu init global
mehtods

JIRA NVGPU-56
JIRA NVGPU-92

Change-Id: Iea9efc194fefa74fb5641d2b2f4633577d2c3a47
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: http://git-master/r/1480002
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index 269f0d68..1d867912 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -741,6 +741,9 @@ struct gpu_ops {
                         struct pmu_queue *queue, u32 *head, bool set);
                 int (*pmu_queue_tail)(struct nvgpu_pmu *pmu,
                         struct pmu_queue *queue, u32 *tail, bool set);
+                void (*pmu_msgq_tail)(struct nvgpu_pmu *pmu,
+                        u32 *tail, bool set);
+                u32 (*pmu_mutex_size)(void);
                 int (*pmu_mutex_acquire)(struct nvgpu_pmu *pmu,
                         u32 id, u32 *token);
                 int (*pmu_mutex_release)(struct nvgpu_pmu *pmu,