plat/arm/fvp: Support performing SDEI platform setup in runtime
This patch introduces dynamic configuration for SDEI setup and is supported
when the new build flag SDEI_IN_FCONF is enabled. Instead of using C arrays
and processing the configuration at compile time, the config is moved to
dts files. It will be retrieved at runtime during SDEI init, using the fconf
layer.
Change-Id: If5c35a7517ba00a9f258d7f3e7c8c20cee169a31
Signed-off-by: Balint Dobszay <balint.dobszay@arm.com>
Co-authored-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
diff --git a/include/services/sdei_flags.h b/include/services/sdei_flags.h
new file mode 100644
index 0000000..d1308f8
--- /dev/null
+++ b/include/services/sdei_flags.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2020, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SDEI_FLAGS_H
+#define SDEI_FLAGS_H
+
+#include <lib/utils_def.h>
+
+/* Internal: SDEI flag bit positions */
+#define SDEI_MAPF_DYNAMIC_SHIFT_ 1U
+#define SDEI_MAPF_BOUND_SHIFT_ 2U
+#define SDEI_MAPF_SIGNALABLE_SHIFT_ 3U
+#define SDEI_MAPF_PRIVATE_SHIFT_ 4U
+#define SDEI_MAPF_CRITICAL_SHIFT_ 5U
+#define SDEI_MAPF_EXPLICIT_SHIFT_ 6U
+
+/* SDEI event 0 */
+#define SDEI_EVENT_0 0
+
+/* Placeholder interrupt for dynamic mapping */
+#define SDEI_DYN_IRQ 0U
+
+/* SDEI flags */
+
+/*
+ * These flags determine whether or not an event can be associated with an
+ * interrupt. Static events are permanently associated with an interrupt, and
+ * can't be changed at runtime. Association of dynamic events with interrupts
+ * can be changed at run time using the SDEI_INTERRUPT_BIND and
+ * SDEI_INTERRUPT_RELEASE calls.
+ *
+ * SDEI_MAPF_DYNAMIC only indicates run time configurability, where as
+ * SDEI_MAPF_BOUND indicates interrupt association. For example:
+ *
+ * - Calling SDEI_INTERRUPT_BIND on a dynamic event will have both
+ * SDEI_MAPF_DYNAMIC and SDEI_MAPF_BOUND set.
+ *
+ * - Statically-bound events will always have SDEI_MAPF_BOUND set, and neither
+ * SDEI_INTERRUPT_BIND nor SDEI_INTERRUPT_RELEASE can be called on them.
+ *
+ * See also the is_map_bound() macro.
+ */
+#define SDEI_MAPF_DYNAMIC BIT(SDEI_MAPF_DYNAMIC_SHIFT_)
+#define SDEI_MAPF_BOUND BIT(SDEI_MAPF_BOUND_SHIFT_)
+#define SDEI_MAPF_EXPLICIT BIT(SDEI_MAPF_EXPLICIT_SHIFT_)
+
+#define SDEI_MAPF_SIGNALABLE BIT(SDEI_MAPF_SIGNALABLE_SHIFT_)
+#define SDEI_MAPF_PRIVATE BIT(SDEI_MAPF_PRIVATE_SHIFT_)
+
+#define SDEI_MAPF_NORMAL 0
+#define SDEI_MAPF_CRITICAL BIT(SDEI_MAPF_CRITICAL_SHIFT_)
+
+#endif /* SDEI_FLAGS_H */