plat: tegra: Use generic ehf defines

Use common ehf file for generic frameworks like SDEI, RAS and
extend plat specific defines using 'PLAT_EHF_DESC'.
Signed-off-by: Sandeep Tripathy <sandeep.tripathy@broadcom.com>
Change-Id: I8a8161c6030f8d226a8bdf0301e7fe6139f019a4

plat/nvidia/tegra/common/tegra_common.mk

@@ -44,7 +44,6 @@ BL31_SOURCES		+=	drivers/delay_timer/delay_timer.c		\
 				${TEGRA_LIBS}/debug/profiler.c			\
 				${TEGRA_COMMON}/tegra_bl31_setup.c		\
 				${TEGRA_COMMON}/tegra_delay_timer.c		\
-				${TEGRA_COMMON}/tegra_ehf.c			\
 				${TEGRA_COMMON}/tegra_fiq_glue.c		\
 				${TEGRA_COMMON}/tegra_io_storage.c		\
 				${TEGRA_COMMON}/tegra_platform.c		\
@@ -55,3 +54,6 @@ BL31_SOURCES		+=	drivers/delay_timer/delay_timer.c		\
 ifneq ($(ENABLE_STACK_PROTECTOR), 0)
 BL31_SOURCES		+=	${TEGRA_COMMON}/tegra_stack_protector.c
 endif
+ifeq (${EL3_EXCEPTION_HANDLING},1)
+BL31_SOURCES		+=	plat/common/aarch64/plat_ehf.c
+endif

plat/nvidia/tegra/common/tegra_ehf.c

-/*
- * Copyright (c) 2020, NVIDIA Corporation. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <platform_def.h>
-
-#include <bl31/ehf.h>
-
-/*
- * Enumeration of priority levels on Tegra platforms.
- */
-ehf_pri_desc_t tegra_exceptions[] = {
-	/* Watchdog priority */
-	EHF_PRI_DESC(PLAT_PRI_BITS, PLAT_TEGRA_WDT_PRIO),
-
-#if SDEI_SUPPORT
-	/* Critical priority SDEI */
-	EHF_PRI_DESC(PLAT_PRI_BITS, PLAT_SDEI_CRITICAL_PRI),
-
-	/* Normal priority SDEI */
-	EHF_PRI_DESC(PLAT_PRI_BITS, PLAT_SDEI_NORMAL_PRI),
-#endif
-};
-
-/* Plug in Tegra exceptions to Exception Handling Framework. */
-EHF_REGISTER_PRIORITIES(tegra_exceptions, ARRAY_SIZE(tegra_exceptions), PLAT_PRI_BITS);

plat/nvidia/tegra/include/platform_def.h

@@ -100,6 +100,9 @@
 #define PLAT_SDEI_NORMAL_PRI		U(0x30)
 #define PLAT_TEGRA_WDT_PRIO		U(0x40)
 
+#define PLAT_EHF_DESC			EHF_PRI_DESC(PLAT_PRI_BITS,\
+						     PLAT_TEGRA_WDT_PRIO)
+
 /*******************************************************************************
  * SDEI events
  ******************************************************************************/