Adding upstream version 2.10.0+dfsg.upstream/2.10.0+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 99 insertions, 0 deletions

diff --git a/include/drivers/arm/gic_common.h b/include/drivers/arm/gic_common.h
new file mode 100644
index 0000000..dc23721
--- /dev/null
+++ b/include/drivers/arm/gic_common.h
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef GIC_COMMON_H
+#define GIC_COMMON_H
+
+#include <lib/utils_def.h>
+
+/*******************************************************************************
+ * GIC Distributor interface general definitions
+ ******************************************************************************/
+/* Constants to categorise interrupts */
+#define MIN_SGI_ID		U(0)
+#define MIN_SEC_SGI_ID		U(8)
+#define MIN_PPI_ID		U(16)
+#define MIN_SPI_ID		U(32)
+#define MAX_SPI_ID		U(1019)
+
+#define TOTAL_SPI_INTR_NUM	(MAX_SPI_ID - MIN_SPI_ID + U(1))
+#define TOTAL_PCPU_INTR_NUM	(MIN_SPI_ID - MIN_SGI_ID)
+
+/* Mask for the priority field common to all GIC interfaces */
+#define GIC_PRI_MASK			U(0xff)
+
+/* Mask for the configuration field common to all GIC interfaces */
+#define GIC_CFG_MASK			U(0x3)
+
+/* Constant to indicate a spurious interrupt in all GIC versions */
+#define GIC_SPURIOUS_INTERRUPT		U(1023)
+
+/* Interrupt configurations: 2-bit fields with LSB reserved */
+#define GIC_INTR_CFG_LEVEL		(0 << 1)
+#define GIC_INTR_CFG_EDGE		(1 << 1)
+
+/* Highest possible interrupt priorities */
+#define GIC_HIGHEST_SEC_PRIORITY	U(0x00)
+#define GIC_HIGHEST_NS_PRIORITY		U(0x80)
+
+/*******************************************************************************
+ * Common GIC Distributor interface register offsets
+ ******************************************************************************/
+#define GICD_CTLR		U(0x0)
+#define GICD_TYPER		U(0x4)
+#define GICD_IIDR		U(0x8)
+#define GICD_IGROUPR		U(0x80)
+#define GICD_ISENABLER		U(0x100)
+#define GICD_ICENABLER		U(0x180)
+#define GICD_ISPENDR		U(0x200)
+#define GICD_ICPENDR		U(0x280)
+#define GICD_ISACTIVER		U(0x300)
+#define GICD_ICACTIVER		U(0x380)
+#define GICD_IPRIORITYR		U(0x400)
+#define GICD_ICFGR		U(0xc00)
+#define GICD_NSACR		U(0xe00)
+
+/* GICD_CTLR bit definitions */
+#define CTLR_ENABLE_G0_SHIFT		0
+#define CTLR_ENABLE_G0_MASK		U(0x1)
+#define CTLR_ENABLE_G0_BIT		BIT_32(CTLR_ENABLE_G0_SHIFT)
+
+/*******************************************************************************
+ * Common GIC Distributor interface register constants
+ ******************************************************************************/
+#define PIDR2_ARCH_REV_SHIFT	4
+#define PIDR2_ARCH_REV_MASK	U(0xf)
+
+/* GIC revision as reported by PIDR2.ArchRev register field */
+#define ARCH_REV_GICV1		U(0x1)
+#define ARCH_REV_GICV2		U(0x2)
+#define ARCH_REV_GICV3		U(0x3)
+#define ARCH_REV_GICV4		U(0x4)
+
+#define IGROUPR_SHIFT		5
+#define ISENABLER_SHIFT		5
+#define ICENABLER_SHIFT		ISENABLER_SHIFT
+#define ISPENDR_SHIFT		5
+#define ICPENDR_SHIFT		ISPENDR_SHIFT
+#define ISACTIVER_SHIFT		5
+#define ICACTIVER_SHIFT		ISACTIVER_SHIFT
+#define IPRIORITYR_SHIFT	2
+#define ITARGETSR_SHIFT		2
+#define ICFGR_SHIFT		4
+#define NSACR_SHIFT		4
+
+/* GICD_TYPER shifts and masks */
+#define TYPER_IT_LINES_NO_SHIFT	U(0)
+#define TYPER_IT_LINES_NO_MASK	U(0x1f)
+
+/* Value used to initialize Normal world interrupt priorities four at a time */
+#define GICD_IPRIORITYR_DEF_VAL			\
+	(GIC_HIGHEST_NS_PRIORITY	|	\
+	(GIC_HIGHEST_NS_PRIORITY << 8)	|	\
+	(GIC_HIGHEST_NS_PRIORITY << 16)	|	\
+	(GIC_HIGHEST_NS_PRIORITY << 24))
+
+#endif /* GIC_COMMON_H */