video: tegra: nvmap: zap pages on reserve request

Reserve operation should be independent of cache maintenance.
Remove dependency on cache maintenance for zapping user mappings.

Bug 1444151

Change-Id: Id7282510353bc1ded15e105bbfde50bc3891ca0f
Signed-off-by: Sri Krishna chowdary <schowdary@nvidia.com>
Reviewed-on: http://git-master/r/398414
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Krishna Reddy <vdumpa@nvidia.com>
Tested-by: Krishna Reddy <vdumpa@nvidia.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/video/tegra/nvmap/nvmap_mm.c b/drivers/video/tegra/nvmap/nvmap_mm.c
index e25dd3014..9681f24fb 100644
--- a/drivers/video/tegra/nvmap/nvmap_mm.c
+++ b/drivers/video/tegra/nvmap/nvmap_mm.c
@@ -211,6 +211,9 @@ int nvmap_reserve_pages(struct nvmap_handle **handles, u32 *offsets, u32 *sizes,
                 else
                         nvmap_handle_mkunreserved(handles[i],offset, size);
         }
+
+        if (op == NVMAP_PAGES_RESERVE)
+                nvmap_zap_handles(handles, offsets, sizes, nr);
         return 0;
 }