gpu: nvgpu: TLB invalidate after map/unmap

Always invalidate TLB after mapping or unmapping, and remove the
delayed TLB invalidate.

Change-Id: I6df3c5c1fcca59f0f9e3f911168cb2f913c42815
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/696413
Reviewed-by: Automatic_Commit_Validation_User

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/gm20b/mm_gm20b.c b/drivers/gpu/nvgpu/gm20b/mm_gm20b.c
index 1adff5ab..605464d4 100644
--- a/drivers/gpu/nvgpu/gm20b/mm_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/mm_gm20b.c
@@ -1,7 +1,7 @@
 /*
  * GM20B MMU
  *
- * Copyright (c) 2014, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2014-2015, NVIDIA CORPORATION.  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -34,6 +34,7 @@ static int allocate_gmmu_ptes_sparse(struct vm_gk20a *vm,
         u32 pte_cur;
         void *pte_kv_cur;
         struct page_table_gk20a *pte;
+        struct gk20a *g = gk20a_from_vm(vm);
 
         gk20a_dbg_fn("");
 
@@ -74,8 +75,7 @@ static int allocate_gmmu_ptes_sparse(struct vm_gk20a *vm,
         unmap_gmmu_pages(pte->ref, pte->sgt, pte_kv_cur);
 
         smp_mb();
-        vm->tlb_dirty = true;
-        gk20a_dbg_fn("set tlb dirty");
+        g->ops.mm.tlb_invalidate(vm);
 
         return 0;
 fail: