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arch/arm64: Hook up ACPI table generation 

Linux v6.3.5 is able to detect and use ACPI tables on an out of tree
target using hacked version of u-boot to pass ACPI through UEFI.

Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I4f60c546ec262ffb4d447fe6476844cf5a1b756d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76071
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
This commit is contained in:
Arthur Heymans 2023-06-22 21:41:51 +02:00 committed by Felix Held
parent fbb612f6d2
commit f3aa88a51c
3 changed files with 23 additions and 8 deletions
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6
src/acpi/Kconfig
View File

@ -81,3 +81,9 @@ config ACPI_GTDT
depends on HAVE_ACPI_TABLES
help
Selected by platforms that implement ARM generic timers
config MAX_ACPI_TABLE_SIZE_KB
int
default 144
help
Set the maximum size of all ACPI tables in KiB.

19
src/arch/arm64/tables.c
View File

@ -1,12 +1,27 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include <bootmem.h>
#include <boot/tables.h>
#include <acpi/acpi.h>
#include <assert.h>
#include <boot/coreboot_tables.h>
#include <boot/tables.h>
#include <bootmem.h>
#include <cbmem.h>
#include <symbols.h>
static void write_acpi_table(void)
{
const size_t max_acpi_size = CONFIG_MAX_ACPI_TABLE_SIZE_KB * KiB;
const uintptr_t acpi_start = (uintptr_t)cbmem_add(CBMEM_ID_ACPI, max_acpi_size);
assert(IS_ALIGNED(acpi_start, 16));
const uintptr_t acpi_end = write_acpi_tables(acpi_start);
assert(acpi_end < acpi_start + max_acpi_size);
printk(BIOS_DEBUG, "ACPI tables: %ld bytes.\n", acpi_end - acpi_start);
}
void arch_write_tables(uintptr_t coreboot_table)
{
if (CONFIG(HAVE_ACPI_TABLES))
write_acpi_table();
}
void bootmem_arch_add_ranges(void)

6
src/arch/x86/Kconfig
View File

@ -298,12 +298,6 @@ config MAX_PIRQ_LINKS
table specifies links greater than 4, pirq_route_irqs will not
function properly, unless this variable is correctly set.
config MAX_ACPI_TABLE_SIZE_KB
int
default 144
help
Set the maximum size of all ACPI tables in KiB.
config MEMLAYOUT_LD_FILE
string
default "src/arch/x86/memlayout.ld"