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GIC: Add API to set interrupt routing

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SPIs can be routed to either a specific PE, or to any one of all
available PEs.

API documentation updated.

Change-Id: I28675f634568aaf4ea1aa8aa7ebf25b419a963ed
Co-authored-by: Yousuf A <yousuf.sait@arm.com>
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
This commit is contained in:
Jeenu Viswambharan
2017-09-22 08:32:09 +01:00
parent 8db978b5a8
commit fc529fee72
12 changed files with 169 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
include/bl31/interrupt_mgmt.h
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2014-2017, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -17,6 +17,11 @@
#define INTR_TYPE_NS U(2)
#define MAX_INTR_TYPES U(3)
#define INTR_TYPE_INVAL MAX_INTR_TYPES
/* Interrupt routing modes */
#define INTR_ROUTING_MODE_PE 0
#define INTR_ROUTING_MODE_ANY 1
/*
* Constant passed to the interrupt handler in the 'id' field when the
* framework does not read the gic registers to determine the interrupt id.

1
include/drivers/arm/gic_common.h
View File

@@ -74,6 +74,7 @@
#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

1
include/drivers/arm/gicv2.h
View File

@@ -171,6 +171,7 @@ void gicv2_disable_interrupt(unsigned int id);
void gicv2_set_interrupt_priority(unsigned int id, unsigned int priority);
void gicv2_set_interrupt_type(unsigned int id, unsigned int type);
void gicv2_raise_sgi(int sgi_num, int proc_num);
void gicv2_set_spi_routing(unsigned int id, int proc_num);
#endif /* __ASSEMBLY__ */
#endif /* __GICV2_H__ */

5
include/drivers/arm/gicv3.h
View File

@@ -75,6 +75,9 @@
#define IROUTER_IRM_SHIFT 31
#define IROUTER_IRM_MASK 0x1
#define GICV3_IRM_PE 0
#define GICV3_IRM_ANY 1
#define NUM_OF_DIST_REGS 30
/*******************************************************************************
@@ -382,6 +385,8 @@ void gicv3_set_interrupt_priority(unsigned int id, unsigned int proc_num,
void gicv3_set_interrupt_type(unsigned int id, unsigned int proc_num,
unsigned int group);
void gicv3_raise_secure_g0_sgi(int sgi_num, u_register_t target);
void gicv3_set_spi_routing(unsigned int id, unsigned int irm,
u_register_t mpidr);
#endif /* __ASSEMBLY__ */
#endif /* __GICV3_H__ */

2
include/plat/common/platform.h
View File

@@ -83,6 +83,8 @@ int plat_ic_has_interrupt_type(unsigned int type);
void plat_ic_set_interrupt_type(unsigned int id, unsigned int type);
void plat_ic_set_interrupt_priority(unsigned int id, unsigned int priority);
void plat_ic_raise_el3_sgi(int sgi_num, u_register_t target);
void plat_ic_set_spi_routing(unsigned int id, unsigned int routing_mode,
u_register_t mpidr);
/*******************************************************************************
* Optional common functions (may be overridden)