drm/radeon: fence virtual address and free it once idle v4

[uclinux-h8/linux.git] / drivers / gpu / drm / radeon / radeon_cs.c

diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index 8a4c49e..b4a0db2 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -278,6 +278,30 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
        return 0;
 }
 
+static void radeon_bo_vm_fence_va(struct radeon_cs_parser *parser,
+                                 struct radeon_fence *fence)
+{
+       struct radeon_fpriv *fpriv = parser->filp->driver_priv;
+       struct radeon_vm *vm = &fpriv->vm;
+       struct radeon_bo_list *lobj;
+
+       if (parser->chunk_ib_idx == -1) {
+               return;
+       }
+       if ((parser->cs_flags & RADEON_CS_USE_VM) == 0) {
+               return;
+       }
+
+       list_for_each_entry(lobj, &parser->validated, tv.head) {
+               struct radeon_bo_va *bo_va;
+               struct radeon_bo *rbo = lobj->bo;
+
+               bo_va = radeon_bo_va(rbo, vm);
+               radeon_fence_unref(&bo_va->fence);
+               bo_va->fence = radeon_fence_ref(fence);
+       }
+}
+
 /**
  * cs_parser_fini() - clean parser states
  * @parser:    parser structure holding parsing context.
@@ -290,11 +314,14 @@ static void radeon_cs_parser_fini(struct radeon_cs_parser *parser, int error)
 {
        unsigned i;
 
-       if (!error)
+       if (!error) {
+               /* fence all bo va before ttm_eu_fence_buffer_objects so bo are still reserved */
+               radeon_bo_vm_fence_va(parser, parser->ib.fence);
                ttm_eu_fence_buffer_objects(&parser->validated,
                                            parser->ib.fence);
-       else
+       } else {
                ttm_eu_backoff_reservation(&parser->validated);
+       }
 
        if (parser->relocs != NULL) {
                for (i = 0; i < parser->nrelocs; i++) {
@@ -388,7 +415,6 @@ static int radeon_cs_ib_vm_chunk(struct radeon_device *rdev,
 
        if (parser->chunk_ib_idx == -1)
                return 0;
-
        if ((parser->cs_flags & RADEON_CS_USE_VM) == 0)
                return 0;