refactor(plat/ea_handler): Use default ea handler implementation for panic

Put default ea handler implementation into function plat_default_ea_handler()
which just print verbose information and panic, so it can be called also
from overwritten / weak function plat_ea_handler() implementation.

Replace every custom implementation of printing verbose error message of
external aborts in custom plat_ea_handler() functions by a common
implementation from plat_default_ea_handler() function.
Signed-off-by: Pali Rohár <pali@kernel.org>
Change-Id: I15897f61b62b4c3c29351e693f51d4df381f3b98

include/plat/common/platform.h

@@ -141,6 +141,8 @@ int plat_sdei_validate_entry_point(uintptr_t ep, unsigned int client_mode);
 void plat_sdei_handle_masked_trigger(uint64_t mpidr, unsigned int intr);
 #endif
 
+void plat_default_ea_handler(unsigned int ea_reason, uint64_t syndrome, void *cookie,
+		void *handle, uint64_t flags);
 void plat_ea_handler(unsigned int ea_reason, uint64_t syndrome, void *cookie,
 		void *handle, uint64_t flags);
 

plat/common/aarch64/plat_common.c

@@ -28,7 +28,7 @@
 #pragma weak plat_sdei_validate_entry_point
 #endif
 
-#pragma weak plat_ea_handler
+#pragma weak plat_ea_handler = plat_default_ea_handler
 
 void bl31_plat_runtime_setup(void)
 {
@@ -79,7 +79,7 @@ static const char *get_el_str(unsigned int el)
 #endif /* !ENABLE_BACKTRACE */
 
 /* RAS functions common to AArch64 ARM platforms */
-void plat_ea_handler(unsigned int ea_reason, uint64_t syndrome, void *cookie,
+void plat_default_ea_handler(unsigned int ea_reason, uint64_t syndrome, void *cookie,
 		void *handle, uint64_t flags)
 {
 #if RAS_EXTENSION

plat/marvell/armada/a3k/common/a3700_ea.c

@@ -7,17 +7,15 @@
 #include <common/bl_common.h>
 #include <common/debug.h>
 #include <arch_helpers.h>
+#include <plat/common/platform.h>
 
 #define ADVK_SERROR_SYNDROME 0xbf000002
 
 void plat_ea_handler(unsigned int ea_reason, uint64_t syndrome, void *cookie,
 		void *handle, uint64_t flags)
 {
-	if (syndrome != ADVK_SERROR_SYNDROME) {
-		ERROR("Unhandled External Abort received on 0x%lx at EL3!\n",
-			read_mpidr_el1());
-		ERROR(" exception reason=%u syndrome=0x%llx\n", ea_reason,
-				syndrome);
-		panic();
-	}
+	if (syndrome == ADVK_SERROR_SYNDROME)
+		return;
+
+	plat_default_ea_handler(ea_reason, syndrome, cookie, handle, flags);
 }

plat/nvidia/tegra/soc/t194/plat_ras.c

@@ -493,9 +493,6 @@ void plat_ea_handler(unsigned int ea_reason, uint64_t syndrome, void *cookie,
 #if RAS_EXTENSION
 	tegra194_ea_handler(ea_reason, syndrome, cookie, handle, flags);
 #else
-	ERROR("Unhandled External Abort received on 0x%llx at EL3!\n",
-			read_mpidr_el1());
-	ERROR(" exception reason=%u syndrome=0x%lx\n", ea_reason, syndrome);
-	panic();
+	plat_default_ea_handler(ea_reason, syndrome, cookie, handle, flags);
 #endif
 }

plat/renesas/common/rcar_common.c

@@ -60,11 +60,7 @@ void plat_ea_handler(unsigned int ea_reason, uint64_t syndrome, void *cookie,
 	if (fixed)
 		return;
 
-	ERROR("Unhandled External Abort received on 0x%lx at EL3!\n",
-			read_mpidr_el1());
-	ERROR(" exception reason=%u syndrome=0x%llx\n", ea_reason, syndrome);
-
-	panic();
+	plat_default_ea_handler(ea_reason, syndrome, cookie, handle, flags);
 }
 
 #include <drivers/renesas/rcar/console/console.h>