gpu: nvgpu: Make trigger mmu fault GPU specific

Add abstraction for triggering fake MMU fault, and a gk20a
implementation. Also adds recovery to FE hardware warning
exception to make testing easier.

Bug 1495967

Change-Id: I6703cff37900a4c4592023423f9c0b31a8928db2
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index 7aca186e..7aa10692 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -137,6 +137,8 @@ struct gpu_ops {
         } clock_gating;
         struct {
                 void (*bind_channel)(struct channel_gk20a *ch_gk20a);
+                void (*trigger_mmu_fault)(struct gk20a *g,
+                                unsigned long engine_ids);
         } fifo;
         struct pmu_v {
                 /*used for change of enum zbc update cmd id from ver 0 to ver1*/