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gpu: nvgpu: replace wait_queue_head_t with nvgpu_cond

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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>
This commit is contained in:
Debarshi Dutta
2017-10-10 10:45:54 +05:30
committed by mobile promotions
parent 30b9cbe35a
commit 61b263d832
14 changed files with 47 additions and 46 deletions
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12
drivers/gpu/nvgpu/common/linux/driver_common.c
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@@ -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);
}