gpu: nvgpu: vgpu: implement .free_syncpt_buf

vgpu needs to free the va range besides unmap the syncpt buffer.

Jira VFND-4870

Change-Id: Ia9edb687b66db6da8529bf256d348999e24a0bc3
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1693094
Reviewed-by: Automatic_Commit_Validation_User
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, 2 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/vgpu/gv11b/vgpu_fifo_gv11b.h b/drivers/gpu/nvgpu/vgpu/gv11b/vgpu_fifo_gv11b.h
index 6d8f8f60..9280c0ae 100644
--- a/drivers/gpu/nvgpu/vgpu/gv11b/vgpu_fifo_gv11b.h
+++ b/drivers/gpu/nvgpu/vgpu/gv11b/vgpu_fifo_gv11b.h
@@ -28,6 +28,8 @@ struct gk20a;
 int vgpu_gv11b_init_fifo_setup_hw(struct gk20a *g);
 int vgpu_gv11b_fifo_alloc_syncpt_buf(struct channel_gk20a *c,
                         u32 syncpt_id, struct nvgpu_mem *syncpt_buf);
+void vgpu_gv11b_fifo_free_syncpt_buf(struct channel_gk20a *c,
+                                        struct nvgpu_mem *syncpt_buf);
 int vgpu_gv11b_fifo_get_sync_ro_map(struct vm_gk20a *vm,
         u64 *base_gpuva, u32 *sync_size);
 #endif