gpu: nvgpu: replace wait_queue_head_t with nvgpu_cond

Replace existing usages of wait_queue_head_t with struct nvgpu_cond and
using the corresponding APIs in order to reduce Linux dependencies in NVGPU.

JIRA NVGPU-205

Change-Id: I85850369c3c47d3e1704e4171b1d172361842423
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1575778
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/drivers/gpu/nvgpu/pstate/pstate.c b/drivers/gpu/nvgpu/pstate/pstate.c
index b9f82c72..512653ba 100644
--- a/drivers/gpu/nvgpu/pstate/pstate.c
+++ b/drivers/gpu/nvgpu/pstate/pstate.c
@@ -357,7 +357,7 @@ static int pstate_sw_setup(struct gk20a *g)
 
         gk20a_dbg_fn("");
 
-        init_waitqueue_head(&g->perf_pmu.pstatesobjs.pstate_notifier_wq);
+        nvgpu_cond_init(&g->perf_pmu.pstatesobjs.pstate_notifier_wq);
 
         err = nvgpu_mutex_init(&g->perf_pmu.pstatesobjs.pstate_mutex);
         if (err)
diff --git a/drivers/gpu/nvgpu/pstate/pstate.h b/drivers/gpu/nvgpu/pstate/pstate.h
index 17dbd476..55726d55 100644
--- a/drivers/gpu/nvgpu/pstate/pstate.h
+++ b/drivers/gpu/nvgpu/pstate/pstate.h
@@ -58,7 +58,7 @@ struct pstate {
 struct pstates {
         struct boardobjgrp_e32 super;
         u32  num_levels;
-        wait_queue_head_t pstate_notifier_wq;
+        struct nvgpu_cond pstate_notifier_wq;
         u32 is_pstate_switch_on;
         struct nvgpu_mutex pstate_mutex; /* protect is_pstate_switch_on */
 };