mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
synced 2025-04-26 23:04:50 +00:00
b7cb133e5c
The implementation currently supports only interrupt-based SDEI events, and supports all interfaces as defined by SDEI specification version 1.0 [1]. Introduce the build option SDEI_SUPPORT to include SDEI dispatcher in BL31. Update user guide and porting guide. SDEI documentation to follow. [1] http://infocenter.arm.com/help/topic/com.arm.doc.den0054a/ARM_DEN0054A_Software_Delegated_Exception_Interface.pdf Change-Id: I758b733084e4ea3b27ac77d0259705565842241a Co-authored-by: Yousuf A <yousuf.sait@arm.com> Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
92 lines
2.1 KiB
C
92 lines
2.1 KiB
C
/*
|
|
* Copyright (c) 2014-2017, ARM Limited and Contributors. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#include <arch_helpers.h>
|
|
#include <assert.h>
|
|
#include <console.h>
|
|
#include <platform.h>
|
|
#include <xlat_mmu_helpers.h>
|
|
|
|
/*
|
|
* The following platform setup functions are weakly defined. They
|
|
* provide typical implementations that may be re-used by multiple
|
|
* platforms but may also be overridden by a platform if required.
|
|
*/
|
|
#pragma weak bl31_plat_enable_mmu
|
|
#pragma weak bl32_plat_enable_mmu
|
|
#pragma weak bl31_plat_runtime_setup
|
|
#if !ERROR_DEPRECATED
|
|
#pragma weak plat_get_syscnt_freq2
|
|
#endif /* ERROR_DEPRECATED */
|
|
|
|
#if SDEI_SUPPORT
|
|
#pragma weak plat_sdei_handle_masked_trigger
|
|
#pragma weak plat_sdei_validate_entry_point
|
|
#endif
|
|
|
|
void bl31_plat_enable_mmu(uint32_t flags)
|
|
{
|
|
enable_mmu_el3(flags);
|
|
}
|
|
|
|
void bl32_plat_enable_mmu(uint32_t flags)
|
|
{
|
|
enable_mmu_el1(flags);
|
|
}
|
|
|
|
void bl31_plat_runtime_setup(void)
|
|
{
|
|
/*
|
|
* Finish the use of console driver in BL31 so that any runtime logs
|
|
* from BL31 will be suppressed.
|
|
*/
|
|
console_uninit();
|
|
}
|
|
|
|
#if !ENABLE_PLAT_COMPAT
|
|
/*
|
|
* Helper function for platform_get_pos() when platform compatibility is
|
|
* disabled. This is to enable SPDs using the older platform API to continue
|
|
* to work.
|
|
*/
|
|
unsigned int platform_core_pos_helper(unsigned long mpidr)
|
|
{
|
|
int idx = plat_core_pos_by_mpidr(mpidr);
|
|
assert(idx >= 0);
|
|
return idx;
|
|
}
|
|
#endif
|
|
|
|
|
|
#if !ERROR_DEPRECATED
|
|
unsigned int plat_get_syscnt_freq2(void)
|
|
{
|
|
unsigned long long freq = plat_get_syscnt_freq();
|
|
|
|
assert(freq >> 32 == 0);
|
|
|
|
return (unsigned int)freq;
|
|
}
|
|
#endif /* ERROR_DEPRECATED */
|
|
|
|
#if SDEI_SUPPORT
|
|
/*
|
|
* Function that handles spurious SDEI interrupts while events are masked.
|
|
*/
|
|
void plat_sdei_handle_masked_trigger(uint64_t mpidr, unsigned int intr)
|
|
{
|
|
WARN("Spurious SDEI interrupt %u on masked PE %lx\n", intr, mpidr);
|
|
}
|
|
|
|
/*
|
|
* Default Function to validate SDEI entry point, which returns success.
|
|
* Platforms may override this with their own validation mechanism.
|
|
*/
|
|
int plat_sdei_validate_entry_point(uintptr_t ep, unsigned int client_mode)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|