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, 9 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/vgpu/gv11b/vgpu_fifo_gv11b.c b/drivers/gpu/nvgpu/vgpu/gv11b/vgpu_fifo_gv11b.c
index 9b689699..e718a30d 100644
--- a/drivers/gpu/nvgpu/vgpu/gv11b/vgpu_fifo_gv11b.c
+++ b/drivers/gpu/nvgpu/vgpu/gv11b/vgpu_fifo_gv11b.c
@@ -21,6 +21,7 @@
  */
 
 #include <gk20a/gk20a.h>
+#include <nvgpu/dma.h>
 #include <nvgpu/vgpu/vgpu.h>
 #include <nvgpu/nvhost.h>
 #include <nvgpu/vgpu/tegra_vgpu.h>
@@ -116,6 +117,14 @@ int vgpu_gv11b_fifo_alloc_syncpt_buf(struct channel_gk20a *c,
         return 0;
 }
 
+void vgpu_gv11b_fifo_free_syncpt_buf(struct channel_gk20a *c,
+                                        struct nvgpu_mem *syncpt_buf)
+{
+        nvgpu_gmmu_unmap(c->vm, syncpt_buf, syncpt_buf->gpu_va);
+        __nvgpu_vm_free_va(c->vm, syncpt_buf->gpu_va, gmmu_page_size_kernel);
+        nvgpu_dma_free(c->g, syncpt_buf);
+}
+
 int vgpu_gv11b_fifo_get_sync_ro_map(struct vm_gk20a *vm,
         u64 *base_gpuva, u32 *sync_size)
 {