Tegra: enable SDEI handling
This patch enables SDEI support for all Tegra platforms, with
the following configuration settings.
* SGI 8 as the source IRQ
* Special Private Event 0
* Three private, dynamic events
* Three shared, dynamic events
* Twelve general purpose explicit events
Verified using TFTF SDEI test suite.
******************************* Summary *******************************
Test suite 'SDEI' Passed
=================================
Tests Skipped : 0
Tests Passed : 5
Tests Failed : 0
Tests Crashed : 0
Total tests : 5
=================================
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: I1922069931a7876a4594e53260ee09f2e4f09390
diff --git a/plat/nvidia/tegra/common/tegra_ehf.c b/plat/nvidia/tegra/common/tegra_ehf.c
new file mode 100644
index 0000000..ea6e443
--- /dev/null
+++ b/plat/nvidia/tegra/common/tegra_ehf.c
@@ -0,0 +1,28 @@
+/*
+ * 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);