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#------------------------------------------------------------------------------
#
# Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
# Abstract:
#
# Provide FSP helper function.
#
#------------------------------------------------------------------------------
#
# FspInfoHeaderRelativeOff is patched during build process and initialized to offset of the AsmGetFspBaseAddress
# from the FSP Info header.
#
ASM_GLOBAL ASM_PFX(FspInfoHeaderRelativeOff)
ASM_PFX(FspInfoHeaderRelativeOff):
#
# This value will be pached by the build script
#
.long 0x012345678
#
# Returns FSP Base Address.
#
# This function gets the FSP Info Header using relative addressing and returns the FSP Base from the header structure
#
ASM_GLOBAL ASM_PFX(AsmGetFspBaseAddress)
ASM_PFX(AsmGetFspBaseAddress):
mov $AsmGetFspBaseAddress, %eax
sub FspInfoHeaderRelativeOff, %eax
add $0x01C, %eax
mov (%eax), %eax
ret
#
# No stack counter part of AsmGetFspBaseAddress. Return address is in edi.
#
ASM_GLOBAL ASM_PFX(AsmGetFspBaseAddressNoStack)
ASM_PFX(AsmGetFspBaseAddressNoStack):
mov $AsmGetFspBaseAddress, %eax
sub FspInfoHeaderRelativeOff, %eax
add $0x01C, %eax
mov (%eax), %eax
jmp *%edi
#
# Returns FSP Info Header.
#
# This function gets the FSP Info Header using relative addressing and returns it
#
ASM_GLOBAL ASM_PFX(AsmGetFspInfoHeader)
ASM_PFX(AsmGetFspInfoHeader):
mov $AsmGetFspBaseAddress, %eax
sub FspInfoHeaderRelativeOff, %eax
ret
#
# No stack counter part of AsmGetFspInfoHeader. Return address is in edi.
#
ASM_GLOBAL ASM_PFX(AsmGetFspInfoHeaderNoStack)
ASM_PFX(AsmGetFspInfoHeaderNoStack):
mov $AsmGetFspBaseAddress, %eax
sub FspInfoHeaderRelativeOff, %eax
jmp *%edi
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