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>

1 files changed, 6 insertions, 6 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/driver_common.c b/drivers/gpu/nvgpu/common/linux/driver_common.c
index 295297b6..e4a65692 100644
--- a/drivers/gpu/nvgpu/common/linux/driver_common.c
+++ b/drivers/gpu/nvgpu/common/linux/driver_common.c
@@ -39,8 +39,8 @@ static void nvgpu_init_vars(struct gk20a *g)
         struct device *dev = dev_from_gk20a(g);
         struct gk20a_platform *platform = dev_get_drvdata(dev);
 
-        init_waitqueue_head(&l->sw_irq_stall_last_handled_wq);
-        init_waitqueue_head(&l->sw_irq_nonstall_last_handled_wq);
+        nvgpu_cond_init(&l->sw_irq_stall_last_handled_wq);
+        nvgpu_cond_init(&l->sw_irq_nonstall_last_handled_wq);
         gk20a_init_gr(g);
 
         init_rwsem(&l->busy_lock);
@@ -261,14 +261,14 @@ void nvgpu_wait_for_deferred_interrupts(struct gk20a *g)
         int nonstall_irq_threshold = atomic_read(&l->hw_irq_nonstall_count);
 
         /* wait until all stalling irqs are handled */
-        wait_event(l->sw_irq_stall_last_handled_wq,
+        NVGPU_COND_WAIT(&l->sw_irq_stall_last_handled_wq,
                    cyclic_delta(stall_irq_threshold,
                                 atomic_read(&l->sw_irq_stall_last_handled))
-                   <= 0);
+                   <= 0, 0);
 
         /* wait until all non-stalling irqs are handled */
-        wait_event(l->sw_irq_nonstall_last_handled_wq,
+        NVGPU_COND_WAIT(&l->sw_irq_nonstall_last_handled_wq,
                    cyclic_delta(nonstall_irq_threshold,
                                 atomic_read(&l->sw_irq_nonstall_last_handled))
-                   <= 0);
+                   <= 0, 0);
 }