Files
system76-coreboot/src/include/acpi/acpi_gnvs.h
Kyösti Mälkki 66c6413c69 ACPI: Refactor ChromeOS specific ACPI GNVS
The layout of GNVS has expectation for a fixed size
array for chromeos_acpi_t. This allows us to reduce
the exposure of <chromeos/gnvs.h>.

If chromeos_acpi_t was the last entry in struct global_nvs
padding at the end is also removed.

If device_nvs_t exists, place a properly sized reserve for
chromeos_acpi_t in the middle.

Allocation from cbmem is adjusted such that it matches exactly
the OperationRegion size defined inside the ASL.

Change-Id: If234075e11335ce958ce136dd3fe162f7e5afdf7
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48788
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-01-18 18:02:27 +00:00

28 lines
656 B
C

/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __ACPI_GNVS_H__
#define __ACPI_GNVS_H__
#include <types.h>
void *acpi_get_gnvs(void);
void *gnvs_get_or_create(void);
void gnvs_assign_chromeos(void *gnvs_section);
void gnvs_set_ecfw_rw(void);
/* Platform code must implement these. */
struct global_nvs;
size_t gnvs_size_of_array(void);
uint32_t *gnvs_cbmc_ptr(struct global_nvs *gnvs);
/*
* These functions populate the gnvs structure in acpi table.
* Defined as weak in common acpi as gnvs structure definition is
* chipset specific.
*/
void soc_fill_gnvs(struct global_nvs *gnvs);
void mainboard_fill_gnvs(struct global_nvs *gnvs);
#endif