gpu: nvgpu: Do not use G_ELPG_FLUSH

G_ELPG_FLUSH is protected in some chips. Use L2 flush operations
instead.

Bug 1698618

Change-Id: I984a8ace8bcd0ad2d4a4e2d63af75a342bdeb75a
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/828656
(cherry picked from commit ba9075fa43975112a221d37d246f0b8f5af40fab)
Reviewed-on: http://git-master/r/829415

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gm20b/mm_gm20b.c b/drivers/gpu/nvgpu/gm20b/mm_gm20b.c
index cf7ae46b..3d75a631 100644
--- a/drivers/gpu/nvgpu/gm20b/mm_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/mm_gm20b.c
@@ -120,6 +120,7 @@ void gm20b_init_mm(struct gpu_ops *gops)
         gops->mm.fb_flush = gk20a_mm_fb_flush;
         gops->mm.l2_invalidate = gk20a_mm_l2_invalidate;
         gops->mm.l2_flush = gk20a_mm_l2_flush;
+        gops->mm.cbc_clean = gk20a_mm_cbc_clean;
         gops->mm.tlb_invalidate = gk20a_mm_tlb_invalidate;
         gops->mm.set_big_page_size = gm20b_mm_set_big_page_size;
         gops->mm.get_big_page_sizes = gm20b_mm_get_big_page_sizes;