4bd9187dad
After ChromeOS NVS was moved to a separate allocation and the use of multiple OperationRegions, maintaining the fixed offsets is not necessary. Use actual structure size for OperationRegions, but align the allocations to 8 bytes or sizeof(uint64_t). Change-Id: I9c73b7c44d234af42c571b23187b924ca2c3894a Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51639 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
93 lines
1.9 KiB
C
93 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <acpi/acpi_gnvs.h>
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#include <acpi/acpigen.h>
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#include <cbmem.h>
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#include <console/console.h>
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#include <soc/nvs.h>
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#include <stdint.h>
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#include <string.h>
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#include <types.h>
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static struct global_nvs *gnvs;
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static void *dnvs;
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void acpi_create_gnvs(void)
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{
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const size_t gnvs_size = ALIGN_UP(sizeof(struct global_nvs), sizeof(uint64_t));
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const size_t dnvs_size = ALIGN_UP(size_of_dnvs(), sizeof(uint64_t));
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gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);
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if (gnvs)
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return;
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/* Allocate for both GNVS and DNVS OpRegions. */
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gnvs = cbmem_add(CBMEM_ID_ACPI_GNVS, gnvs_size + dnvs_size);
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if (!gnvs)
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return;
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memset(gnvs, 0, gnvs_size + dnvs_size);
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if (dnvs_size)
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dnvs = (char *)gnvs + gnvs_size;
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if (CONFIG(CONSOLE_CBMEM))
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gnvs->cbmc = (uintptr_t)cbmem_find(CBMEM_ID_CONSOLE);
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}
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void *acpi_get_gnvs(void)
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{
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if (gnvs)
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return gnvs;
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gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);
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if (gnvs)
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return gnvs;
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printk(BIOS_ERR, "Unable to locate Global NVS\n");
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return NULL;
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}
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void *acpi_get_device_nvs(void)
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{
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return dnvs;
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}
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/* Implemented under platform. */
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__weak void soc_fill_gnvs(struct global_nvs *gnvs_) { }
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__weak void mainboard_fill_gnvs(struct global_nvs *gnvs_) { }
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__weak size_t size_of_dnvs(void) { return 0; }
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/* Called from write_acpi_tables() only on normal boot path. */
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void acpi_fill_gnvs(void)
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{
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const struct opregion gnvs_op = OPREGION("GNVS", SYSTEMMEMORY, (uintptr_t)gnvs,
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sizeof(struct global_nvs));
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const struct opregion dnvs_op = OPREGION("DNVS", SYSTEMMEMORY, (uintptr_t)dnvs,
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size_of_dnvs());
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if (!gnvs)
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return;
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soc_fill_gnvs(gnvs);
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mainboard_fill_gnvs(gnvs);
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acpigen_write_scope("\\");
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acpigen_write_opregion(&gnvs_op);
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if (dnvs)
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acpigen_write_opregion(&dnvs_op);
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acpigen_pop_len();
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}
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int acpi_reset_gnvs_for_wake(struct global_nvs **gnvs_)
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{
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if (!gnvs)
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return -1;
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/* Set unknown wake source */
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gnvs->pm1i = -1;
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gnvs->gpei = -1;
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*gnvs_ = gnvs;
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return 0;
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}
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