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ehf: use common priority level enumuration 

'EHF' is used by RAS, SDEI, SPM_MM common frameworks.
If platform needs to plug-in specific handlers then
'PLAT_EHF_DESC' can be used to populate platform specific
priority levels.

Signed-off-by: Sandeep Tripathy <sandeep.tripathy@broadcom.com>
Change-Id: I37af7e0e48111f87b6982604bf5c15db3e05755d
This commit is contained in:
Sandeep Tripathy 2020-08-12 18:42:13 +05:30
parent 3e1e08b799
commit 262aceaac4
4 changed files with 39 additions and 35 deletions
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2
include/plat/arm/common/arm_def.h
View File

@ -568,7 +568,7 @@
#define PLAT_SDEI_NORMAL_PRI 0x70
/* ARM platforms use 3 upper bits of secure interrupt priority */
#define ARM_PRI_BITS 3
#define PLAT_PRI_BITS 3
/* SGI used for SDEI signalling */
#define ARM_SDEI_SGI ARM_IRQ_SEC_SGI_0

33
plat/arm/common/aarch64/arm_ehf.c
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@ -1,33 +0,0 @@
/*
* Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <platform_def.h>
#include <bl31/ehf.h>
/*
* Enumeration of priority levels on ARM platforms.
*/
ehf_pri_desc_t arm_exceptions[] = {
#if RAS_EXTENSION
/* RAS Priority */
EHF_PRI_DESC(ARM_PRI_BITS, PLAT_RAS_PRI),
#endif
#if SDEI_SUPPORT
/* Critical priority SDEI */
EHF_PRI_DESC(ARM_PRI_BITS, PLAT_SDEI_CRITICAL_PRI),
/* Normal priority SDEI */
EHF_PRI_DESC(ARM_PRI_BITS, PLAT_SDEI_NORMAL_PRI),
#endif
#if SPM_MM
EHF_PRI_DESC(ARM_PRI_BITS, PLAT_SP_PRI),
#endif
};
/* Plug in ARM exceptions to Exception Handling Framework. */
EHF_REGISTER_PRIORITIES(arm_exceptions, ARRAY_SIZE(arm_exceptions), ARM_PRI_BITS);

2
plat/arm/common/arm_common.mk
View File

@ -258,7 +258,7 @@ endif
endif
ifeq (${EL3_EXCEPTION_HANDLING},1)
BL31_SOURCES += plat/arm/common/aarch64/arm_ehf.c
BL31_SOURCES += plat/common/aarch64/plat_ehf.c
endif
ifeq (${SDEI_SUPPORT},1)

37
plat/common/aarch64/plat_ehf.c Normal file
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@ -0,0 +1,37 @@
/*
* Copyright (c) 2017-2020, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2020, Broadcom
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <bl31/ehf.h>
#include <platform_def.h>
/*
* Enumeration of priority levels on ARM platforms.
*/
ehf_pri_desc_t plat_exceptions[] = {
#if RAS_EXTENSION
/* RAS Priority */
EHF_PRI_DESC(PLAT_PRI_BITS, PLAT_RAS_PRI),
#endif
#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
#if SPM_MM
EHF_PRI_DESC(PLAT_PRI_BITS, PLAT_SP_PRI),
#endif
/* Plaform specific exceptions description */
#ifdef PLAT_EHF_DESC
PLAT_EHF_DESC,
#endif
};
/* Plug in ARM exceptions to Exception Handling Framework. */
EHF_REGISTER_PRIORITIES(plat_exceptions, ARRAY_SIZE(plat_exceptions), PLAT_PRI_BITS);