Files
system76-coreboot/src/cpu/amd/pi/Makefile.inc
Kyösti Mälkki bebd766f16 binaryPI: Disable CAR with empty stack
Calling disable_cache_as_ram() with valuables in stack is not
a stable solution, as per documentation AMD_DISABLE_STACK
should destroy stack in cache.

While we still preserve cache contents (there is wbinvd deep
inside AMD_DISABLE_STACK macro), we now actually do a stack
switch and much more closely meet the specification of CAR
teardown sequence in AGESA specifications.

We now somewhat incorrectly include files from agesa/ tree,
but the whole agesawrapper.c file removal will address the
issue of overall directory layout.

Change-Id: I2bac098099c1caffea181356c63924f4b5a93b54
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/18525
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-07-17 19:31:09 +00:00

28 lines
927 B
Makefile

#
# This file is part of the coreboot project.
#
# Copyright (C) 2011 - 2016 Advanced Micro Devices, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
subdirs-$(CONFIG_CPU_AMD_PI_00630F01) += 00630F01
subdirs-$(CONFIG_CPU_AMD_PI_00730F01) += 00730F01
subdirs-$(CONFIG_CPU_AMD_PI_00660F01) += 00660F01
ramstage-$(CONFIG_SPI_FLASH) += spi.c
cpu_incs-y += $(src)/cpu/amd/agesa/cache_as_ram.inc
romstage-y += romstage.c
romstage-y += ../agesa/heapmanager.c
ramstage-y += ../agesa/heapmanager.c
ramstage-y += amd_late_init.c