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coreboot-kgpe-d16/src/soc/intel/apollolake/memmap.c

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soc/intel/apollolake: Add cbmem_top() implementation On Apollolake CPU memory mapping is similar to previous SoC, and we place CBMEM right under TSEG. Change-Id: I606f690449ba98af6e9fc3074d677c7287892164 Signed-off-by: Andrey Petrov <andrey.petrov@intel.com> Reviewed-on: https://review.coreboot.org/13883 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-03-03 00:09:27 +01:00
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2015 Intel Corp.
* (Written by Andrey Petrov <andrey.petrov@intel.com> for Intel Corp.)
*
* 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; either version 2 of the License, or
* (at your option) any later version.
soc/intel: Update license headers Update all of the license headers to make sure they are compliant with coreboot's license header policy. Change-Id: I151d058615290e528d9d1738c17804f6b9cc8dce Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/14321 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-04-10 19:09:16 +02:00
*
* 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.
soc/intel/apollolake: Add cbmem_top() implementation On Apollolake CPU memory mapping is similar to previous SoC, and we place CBMEM right under TSEG. Change-Id: I606f690449ba98af6e9fc3074d677c7287892164 Signed-off-by: Andrey Petrov <andrey.petrov@intel.com> Reviewed-on: https://review.coreboot.org/13883 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-03-03 00:09:27 +01:00
*/
soc/apollolake/memmap: Switch to SIMPLE_DEVICE API memmap.c functionality is designed to be used in more than ramstage. Therefore, it cannot use ramstage-specific APIs. In this case, the SIMPLE_DEVICE API offers a more consistent behavior across stages. Change-Id: Ic381fe1eb773fb0a5fb5887eb67d2228d2f0817d Signed-off-by: Alexandru Gagniuc <alexandrux.gagniuc@intel.com> Reviewed-on: https://review.coreboot.org/14953 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-05-23 23:04:58 +02:00
/*
* The device_t returned by dev_find_slot() is different than the device_t
* passed to pci_write_config32(). If one needs to get access to the config.h
* of a device and perform i/o things are incorrect. One is a pointer while
* the other is a 32-bit integer.
*/
#define __SIMPLE_DEVICE__
soc/intel/apollolake: Add cbmem_top() implementation On Apollolake CPU memory mapping is similar to previous SoC, and we place CBMEM right under TSEG. Change-Id: I606f690449ba98af6e9fc3074d677c7287892164 Signed-off-by: Andrey Petrov <andrey.petrov@intel.com> Reviewed-on: https://review.coreboot.org/13883 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-03-03 00:09:27 +01:00
#include <arch/io.h>
soc/intel/apollolake: Implement stage cache to improve resume time This patch enables stage cache to save ~40ms during S3 resume. It saves ramstage in the stage cache and restores it on resume so that ramstage does not have to reinitialize during the resume flow. Stage cache functionality is added to postcar stage since ramstage is called from postcar. BUG=chrome-os-partner:56941 BRANCH=none TEST=built for Reef and tested ramstage being cached Change-Id: I1551fd0faca536bd8c8656f0a8ec7f900aae1f72 Signed-off-by: Brandon Breitenstein <brandon.breitenstein@intel.com> Reviewed-on: https://review.coreboot.org/16833 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-09-30 22:57:12 +02:00
#include <assert.h>
soc/intel/apollolake: Add cbmem_top() implementation On Apollolake CPU memory mapping is similar to previous SoC, and we place CBMEM right under TSEG. Change-Id: I606f690449ba98af6e9fc3074d677c7287892164 Signed-off-by: Andrey Petrov <andrey.petrov@intel.com> Reviewed-on: https://review.coreboot.org/13883 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-03-03 00:09:27 +01:00
#include <cbmem.h>
#include <device/pci.h>
#include <soc/northbridge.h>
#include <soc/pci_devs.h>
soc/apollolake: SOC specific SMM code Add SMI handlers that map to SOC specific SMI events Update relocation_handler in mp_ops Change-Id: Idefddaf41cf28240f5f8172b00462a7f893889e7 Signed-off-by: Hannah Williams <hannah.williams@intel.com> Reviewed-on: https://review.coreboot.org/14808 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-05-13 09:47:14 +02:00
#include <soc/smm.h>
soc/intel/apollolake: Add cbmem_top() implementation On Apollolake CPU memory mapping is similar to previous SoC, and we place CBMEM right under TSEG. Change-Id: I606f690449ba98af6e9fc3074d677c7287892164 Signed-off-by: Andrey Petrov <andrey.petrov@intel.com> Reviewed-on: https://review.coreboot.org/13883 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-03-03 00:09:27 +01:00
static uintptr_t smm_region_start(void)
{
soc/pci_devs.h: Use consistent naming in soc/pci_devs.h This patch to make common PCI device name between APL and SKL. Change-Id: I5e4c7502e9678c0a367e9c7a96cf848d5b24f68e Signed-off-by: Barnali Sarkar <barnali.sarkar@intel.com> Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/18576 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Martin Roth <martinroth@google.com>
2017-03-05 08:07:00 +01:00
return ALIGN_DOWN(pci_read_config32(SA_DEV_ROOT, TSEG), 1*MiB);
soc/intel/apollolake: Add cbmem_top() implementation On Apollolake CPU memory mapping is similar to previous SoC, and we place CBMEM right under TSEG. Change-Id: I606f690449ba98af6e9fc3074d677c7287892164 Signed-off-by: Andrey Petrov <andrey.petrov@intel.com> Reviewed-on: https://review.coreboot.org/13883 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-03-03 00:09:27 +01:00
}
soc/apollolake: SOC specific SMM code Add SMI handlers that map to SOC specific SMI events Update relocation_handler in mp_ops Change-Id: Idefddaf41cf28240f5f8172b00462a7f893889e7 Signed-off-by: Hannah Williams <hannah.williams@intel.com> Reviewed-on: https://review.coreboot.org/14808 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-05-13 09:47:14 +02:00
static size_t smm_region_size(void)
{
uintptr_t smm_end =
soc/pci_devs.h: Use consistent naming in soc/pci_devs.h This patch to make common PCI device name between APL and SKL. Change-Id: I5e4c7502e9678c0a367e9c7a96cf848d5b24f68e Signed-off-by: Barnali Sarkar <barnali.sarkar@intel.com> Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/18576 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Martin Roth <martinroth@google.com>
2017-03-05 08:07:00 +01:00
ALIGN_DOWN(pci_read_config32(SA_DEV_ROOT, BGSM), 1*MiB);
soc/apollolake: SOC specific SMM code Add SMI handlers that map to SOC specific SMI events Update relocation_handler in mp_ops Change-Id: Idefddaf41cf28240f5f8172b00462a7f893889e7 Signed-off-by: Hannah Williams <hannah.williams@intel.com> Reviewed-on: https://review.coreboot.org/14808 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-05-13 09:47:14 +02:00
return smm_end - smm_region_start();
}
soc/intel/apollolake: Add cbmem_top() implementation On Apollolake CPU memory mapping is similar to previous SoC, and we place CBMEM right under TSEG. Change-Id: I606f690449ba98af6e9fc3074d677c7287892164 Signed-off-by: Andrey Petrov <andrey.petrov@intel.com> Reviewed-on: https://review.coreboot.org/13883 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-03-03 00:09:27 +01:00
void *cbmem_top(void)
{
return (void *)smm_region_start();
}
soc/apollolake: SOC specific SMM code Add SMI handlers that map to SOC specific SMI events Update relocation_handler in mp_ops Change-Id: Idefddaf41cf28240f5f8172b00462a7f893889e7 Signed-off-by: Hannah Williams <hannah.williams@intel.com> Reviewed-on: https://review.coreboot.org/14808 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-05-13 09:47:14 +02:00
void smm_region(void **start, size_t *size)
{
*start = (void *)smm_region_start();
*size = smm_region_size();
}
soc/intel/apollolake: Implement stage cache to improve resume time This patch enables stage cache to save ~40ms during S3 resume. It saves ramstage in the stage cache and restores it on resume so that ramstage does not have to reinitialize during the resume flow. Stage cache functionality is added to postcar stage since ramstage is called from postcar. BUG=chrome-os-partner:56941 BRANCH=none TEST=built for Reef and tested ramstage being cached Change-Id: I1551fd0faca536bd8c8656f0a8ec7f900aae1f72 Signed-off-by: Brandon Breitenstein <brandon.breitenstein@intel.com> Reviewed-on: https://review.coreboot.org/16833 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-09-30 22:57:12 +02:00
int smm_subregion(int sub, void **start, size_t *size)
{
uintptr_t sub_base;
size_t sub_size;
const size_t cache_size = CONFIG_SMM_RESERVED_SIZE;
sub_base = smm_region_start();
sub_size = smm_region_size();
assert(sub_size > CONFIG_SMM_RESERVED_SIZE);
switch (sub) {
case SMM_SUBREGION_HANDLER:
/* Handler starts at the base of TSEG. */
sub_size -= cache_size;
break;
case SMM_SUBREGION_CACHE:
/* External cache is in the middle of TSEG. */
sub_base += sub_size - cache_size;
sub_size = cache_size;
break;
default:
return -1;
}
*start = (void *)sub_base;
*size = sub_size;
return 0;
}
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