From afe8aeed81003e941d91e8733ea7459a58d1a4d7 Mon Sep 17 00:00:00 2001 From: Aaron Durbin Date: Tue, 29 Nov 2016 21:37:42 -0600 Subject: lib: put romstage_handoff implementation in own compilation unit MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Instead of putting all the functions inline just put the current implementation into a C file. That way all the implementation innards are not exposed. Lastly, fix up the fallout of compilation units not including the headers they actually use. Change-Id: I01fd25d158c0d5016405b73a4d4df3721c281b04 Signed-off-by: Aaron Durbin Reviewed-on: https://review.coreboot.org/17648 Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki Reviewed-by: Furquan Shaikh --- src/lib/romstage_handoff.c | 80 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 src/lib/romstage_handoff.c (limited to 'src/lib/romstage_handoff.c') diff --git a/src/lib/romstage_handoff.c b/src/lib/romstage_handoff.c new file mode 100644 index 0000000000..bdfdb642b8 --- /dev/null +++ b/src/lib/romstage_handoff.c @@ -0,0 +1,80 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2016 Google 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. + */ + +#include +#include +#include +#include +#include +#include + +struct romstage_handoff { + /* Indicate if the current boot is an S3 resume. If + * CONFIG_RELOCTABLE_RAMSTAGE is enabled the chipset code is + * responsible for initializing this variable. Otherwise, ramstage + * will be re-loaded from cbfs (which can be slower since it lives + * in flash). */ + uint8_t s3_resume; + uint8_t reboot_required; + uint8_t reserved[2]; +}; + +static struct romstage_handoff *romstage_handoff_find_or_add(void) +{ + struct romstage_handoff *handoff; + + /* cbmem_add() first does a find and uses the old location before the + * real add. However, it is important to know when the structure is not + * found so it can be initialized to 0. */ + handoff = cbmem_find(CBMEM_ID_ROMSTAGE_INFO); + + if (handoff) + return handoff; + + handoff = cbmem_add(CBMEM_ID_ROMSTAGE_INFO, sizeof(*handoff)); + + if (handoff != NULL) + memset(handoff, 0, sizeof(*handoff)); + else + printk(BIOS_DEBUG, "Romstage handoff structure not added!\n"); + + return handoff; +} + +int romstage_handoff_init(int is_s3_resume) +{ + struct romstage_handoff *handoff; + + handoff = romstage_handoff_find_or_add(); + + if (handoff == NULL) + return -1; + + handoff->s3_resume = is_s3_resume; + + return 0; +} + +int romstage_handoff_is_resume(void) +{ + struct romstage_handoff *handoff; + + handoff = cbmem_find(CBMEM_ID_ROMSTAGE_INFO); + + if (handoff == NULL) + return 0; + + return handoff->s3_resume; +} -- cgit v1.2.3