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ARM platforms: Enable SDEI 

Support SDEI on ARM platforms using frameworks implemented in earlier
patches by defining and exporting SDEI events: this patch defines the
standard event 0, and a handful of shared and private dynamic events.

Change-Id: I9d3d92a92cff646b8cc55eabda78e140deaa24e1
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
This commit is contained in:
Jeenu Viswambharan 2017-09-22 08:32:10 +01:00
parent 0bef0edffd
commit 0baec2abde
3 changed files with 51 additions and 1 deletions
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15
include/plat/arm/common/arm_def.h
View File

@ -202,7 +202,7 @@
GIC_INTR_CFG_EDGE)
#define ARM_G0_IRQ_PROPS(grp) \
INTR_PROP_DESC(ARM_IRQ_SEC_SGI_0, GIC_HIGHEST_SEC_PRIORITY, grp, \
INTR_PROP_DESC(ARM_IRQ_SEC_SGI_0, PLAT_SDEI_NORMAL_PRI, grp, \
GIC_INTR_CFG_EDGE), \
INTR_PROP_DESC(ARM_IRQ_SEC_SGI_6, GIC_HIGHEST_SEC_PRIORITY, grp, \
GIC_INTR_CFG_EDGE)
@ -461,4 +461,17 @@
/* ARM platforms use 3 upper bits of secure interrupt priority */
#define ARM_PRI_BITS 3
/* SGI used for SDEI signalling */
#define ARM_SDEI_SGI ARM_IRQ_SEC_SGI_0
/* ARM SDEI dynamic private event numbers */
#define ARM_SDEI_DP_EVENT_0 1000
#define ARM_SDEI_DP_EVENT_1 1001
#define ARM_SDEI_DP_EVENT_2 1002
/* ARM SDEI dynamic shared event numbers */
#define ARM_SDEI_DS_EVENT_0 2000
#define ARM_SDEI_DS_EVENT_1 2001
#define ARM_SDEI_DS_EVENT_2 2002
#endif /* __ARM_DEF_H__ */

33
plat/arm/common/aarch64/arm_sdei.c Normal file
View File

@ -0,0 +1,33 @@
/*
* Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
/* SDEI configuration for ARM platforms */
#include <ehf.h>
#include <platform_def.h>
#include <sdei.h>
/* Private event mappings */
static sdei_ev_map_t arm_private_sdei[] = {
/* Event 0 */
SDEI_DEFINE_EVENT_0(ARM_SDEI_SGI),
/* Dynamic private events */
SDEI_PRIVATE_EVENT(ARM_SDEI_DP_EVENT_0, SDEI_DYN_IRQ, SDEI_MAPF_DYNAMIC),
SDEI_PRIVATE_EVENT(ARM_SDEI_DP_EVENT_1, SDEI_DYN_IRQ, SDEI_MAPF_DYNAMIC),
SDEI_PRIVATE_EVENT(ARM_SDEI_DP_EVENT_2, SDEI_DYN_IRQ, SDEI_MAPF_DYNAMIC),
};
/* Shared event mappings */
static sdei_ev_map_t arm_shared_sdei[] = {
/* Dynamic shared events */
SDEI_SHARED_EVENT(ARM_SDEI_DS_EVENT_0, SDEI_DYN_IRQ, SDEI_MAPF_DYNAMIC),
SDEI_SHARED_EVENT(ARM_SDEI_DS_EVENT_1, SDEI_DYN_IRQ, SDEI_MAPF_DYNAMIC),
SDEI_SHARED_EVENT(ARM_SDEI_DS_EVENT_2, SDEI_DYN_IRQ, SDEI_MAPF_DYNAMIC),
};
/* Export ARM SDEI events */
REGISTER_SDEI_MAP(arm_private_sdei, arm_shared_sdei);

4
plat/arm/common/arm_common.mk
View File

@ -188,6 +188,10 @@ ifeq (${EL3_EXCEPTION_HANDLING},1)
BL31_SOURCES += plat/arm/common/aarch64/arm_ehf.c
endif
ifeq (${SDEI_SUPPORT},1)
BL31_SOURCES += plat/arm/common/aarch64/arm_sdei.c
endif
ifneq (${TRUSTED_BOARD_BOOT},0)
# Include common TBB sources