gpu: nvgpu: gp10b: enhance priv error reporting

-Append 0x for info dumped in hex format
-Dump subid and priv_level for ERROR_INFO
-Decode ERROR_CODE for supported error types

Bug 2072157
Bug 200392445
Bug 2055510
Bug 200379815

Change-Id: I78df8ca15421ee37631157082648e9b545367c95
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1672292
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 9 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/include/nvgpu/hw/gp10b/hw_pri_ringstation_gpc_gp10b.h b/drivers/gpu/nvgpu/include/nvgpu/hw/gp10b/hw_pri_ringstation_gpc_gp10b.h
index 1bd5a0f7..ba55658e 100644
--- a/drivers/gpu/nvgpu/include/nvgpu/hw/gp10b/hw_pri_ringstation_gpc_gp10b.h
+++ b/drivers/gpu/nvgpu/include/nvgpu/hw/gp10b/hw_pri_ringstation_gpc_gp10b.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2017-2018, NVIDIA CORPORATION.  All rights reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -72,6 +72,14 @@ static inline u32 pri_ringstation_gpc_gpc0_priv_error_info_r(void)
 {
         return 0x00128128U;
 }
+static inline u32 pri_ringstation_gpc_gpc0_priv_error_info_subid_v(u32 r)
+{
+        return (r >> 24U) & 0x3fU;
+}
+static inline u32 pri_ringstation_gpc_gpc0_priv_error_info_priv_level_v(u32 r)
+{
+        return (r >> 20U) & 0x3U;
+}
 static inline u32 pri_ringstation_gpc_gpc0_priv_error_code_r(void)
 {
         return 0x0012812cU;