gpu: nvgpu: Implement L2 flush in fifo recovery

Implement a full L2 flush (clean and invalidate) for gm20b in
the fifo recovery path.

Bug 1512176

Change-Id: Ibf89ede9cca65a6868ebff89825869053302a007
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: http://git-master/r/416435
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index d8ceecd7..726994ff 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -82,6 +82,7 @@ struct gpu_ops {
                 void (*elpg_flush)(struct gk20a *g);
                 void (*isr)(struct gk20a *g);
                 u32 (*cbc_fix_config)(struct gk20a *g, int base);
+                void (*flush)(struct gk20a *g);
         } ltc;
         struct {
                 int (*init_fs_state)(struct gk20a *g);