gpu: nvgpu: remove support for foreign sema syncfds

Delete the proxy waiter for non-semaphore-backed syncfds in sema wait
path to simplify code, to remove dependencies to the sync framework (and
thus Linux) and to support upcoming refactorings. This feature has never
been used for actually foreign fences.

Jira NVGPU-43
Jira NVGPU-66

Change-Id: I2b539aefd2d096a7bf5f40e61d48de7a9b3dccae
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1665119
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 0 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/driver_common.c b/drivers/gpu/nvgpu/common/linux/driver_common.c
index 62596d49..c3663117 100644
--- a/drivers/gpu/nvgpu/common/linux/driver_common.c
+++ b/drivers/gpu/nvgpu/common/linux/driver_common.c
@@ -77,9 +77,6 @@ static void nvgpu_init_vars(struct gk20a *g)
         dma_set_mask(dev, DMA_BIT_MASK(34));
         dma_set_coherent_mask(dev, DMA_BIT_MASK(34));
 
-        nvgpu_init_list_node(&g->pending_sema_waits);
-        nvgpu_raw_spinlock_init(&g->pending_sema_waits_lock);
-
         nvgpu_init_list_node(&g->profiler_objects);
 
         nvgpu_init_list_node(&g->boardobj_head);