gpu: nvgpu: Fault engines on PBDMA error

On PBDMA error even though the engine might not be wedged, we need to
kick the channel out of engine. Add that logic. Also when channel is
not in engine, we need to remove it from runlist.

Bug 1498688

Change-Id: I5939feb41d0a90635ba313b265c7e3b5d3f48622
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/417682
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: Kevin Huang (Eng-SW) <kevinh@nvidia.com>
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/hw_pbdma_gk20a.h b/drivers/gpu/nvgpu/gk20a/hw_pbdma_gk20a.h
index 60e83122..0d749c20 100644
--- a/drivers/gpu/nvgpu/gk20a/hw_pbdma_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/hw_pbdma_gk20a.h
@@ -174,6 +174,10 @@ static inline u32 pbdma_pb_header_type_inc_f(void)
 {
         return 0x20000000;
 }
+static inline u32 pbdma_hdr_shadow_r(u32 i)
+{
+        return 0x00040118 + i*8192;
+}
 static inline u32 pbdma_subdevice_r(u32 i)
 {
         return 0x00040094 + i*8192;