From ba22e159bb21549ba92eb6e9d91eaa097a54985b Mon Sep 17 00:00:00 2001 From: Kyösti Mälkki Date: Wed, 23 Nov 2016 06:47:15 +0200 Subject: AGESA: Disable CAR with empty stack MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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. Change-Id: I986bb7a88f53f7f7a0b05d4edcd5020f5dbeb4b7 Signed-off-by: Kyösti Mälkki Reviewed-on: https://review.coreboot.org/18626 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin --- src/cpu/amd/agesa/family15tn/romstage.c | 33 +++++++++++++++++---------------- 1 file changed, 17 insertions(+), 16 deletions(-) (limited to 'src/cpu/amd/agesa/family15tn') diff --git a/src/cpu/amd/agesa/family15tn/romstage.c b/src/cpu/amd/agesa/family15tn/romstage.c index 55bb4b1f23..fc1aeee576 100644 --- a/src/cpu/amd/agesa/family15tn/romstage.c +++ b/src/cpu/amd/agesa/family15tn/romstage.c @@ -15,9 +15,6 @@ * GNU General Public License for more details. */ -#include -#include - #include #include @@ -45,28 +42,32 @@ void agesa_main(struct sysinfo *cb) agesawrapper_amdinitearly(); if (!cb->s3resume) { + printk(BIOS_INFO, "Normal boot\n"); + post_code(0x40); agesawrapper_amdinitpost(); - - post_code(0x41); - agesawrapper_amdinitenv(); - - disable_cache_as_ram(); } else { printk(BIOS_INFO, "S3 detected\n"); post_code(0x60); agesawrapper_amdinitresume(); + } +} - amd_initcpuio(); - agesawrapper_amds3laterestore(); +void agesa_postcar(struct sysinfo *cb) +{ + if (!cb->s3resume) { + printk(BIOS_INFO, "Normal boot postcar\n"); - post_code(0x61); - prepare_for_resume(); - } + post_code(0x41); + agesawrapper_amdinitenv(); + } else { + printk(BIOS_INFO, "S3 resume postcar\n"); - post_code(0x50); - copy_and_run(); + post_code(0x61); + amd_initcpuio(); - /* Not reached */ + post_code(0x62); + agesawrapper_amds3laterestore(); + } } -- cgit v1.2.3