Tegra194: add RAS exception handling
This patch adds all Tegra194 RAS nodes definitions and support to
handle all uncorrectable RAS errors.
Change-Id: I109b5a8dbca91d92752dc282c4ca30f273c475f9
Signed-off-by: David Pu <dpu@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
diff --git a/lib/extensions/ras/ras_common.c b/lib/extensions/ras/ras_common.c
index 64a4852..36f9a95 100644
--- a/lib/extensions/ras/ras_common.c
+++ b/lib/extensions/ras/ras_common.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2020, NVIDIA Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -18,6 +19,47 @@
# error Platform must define RAS priority value
#endif
+/*
+ * Function to convert architecturally-defined primary error code SERR,
+ * bits[7:0] from ERR<n>STATUS to its corresponding error string.
+ */
+const char *ras_serr_to_str(unsigned int serr)
+{
+ const char *str[ERROR_STATUS_NUM_SERR] = {
+ "No error",
+ "IMPLEMENTATION DEFINED error",
+ "Data value from (non-associative) internal memory",
+ "IMPLEMENTATION DEFINED pin",
+ "Assertion failure",
+ "Error detected on internal data path",
+ "Data value from associative memory",
+ "Address/control value from associative memory",
+ "Data value from a TLB",
+ "Address/control value from a TLB",
+ "Data value from producer",
+ "Address/control value from producer",
+ "Data value from (non-associative) external memory",
+ "Illegal address (software fault)",
+ "Illegal access (software fault)",
+ "Illegal state (software fault)",
+ "Internal data register",
+ "Internal control register",
+ "Error response from slave",
+ "External timeout",
+ "Internal timeout",
+ "Deferred error from slave not supported at master"
+ };
+
+ /*
+ * All other values are reserved. Reserved values might be defined
+ * in a future version of the architecture
+ */
+ if (serr >= ERROR_STATUS_NUM_SERR)
+ return "unknown SERR";
+
+ return str[serr];
+}
+
/* Handler that receives External Aborts on RAS-capable systems */
int ras_ea_handler(unsigned int ea_reason, uint64_t syndrome, void *cookie,
void *handle, uint64_t flags)