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[PW_SID:986738] ACPI: support BGRT table on RISC-V #709

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[PW_SID:986738] ACPI: support BGRT table on RISC-V #709

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89f584d
RISC-V: ACPI: enable parsing the BGRT table
xypron Jul 29, 2025
5698c4f
ACPI: support BGRT table on RISC-V
xypron Jul 29, 2025
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3 changes: 3 additions & 0 deletions arch/riscv/kernel/acpi.c
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@
*/

#include <linux/acpi.h>
#include <linux/efi-bgrt.h>
#include <linux/efi.h>
#include <linux/io.h>
#include <linux/memblock.h>
Expand Down Expand Up @@ -160,6 +161,8 @@ void __init acpi_boot_table_init(void)
early_init_dt_scan_chosen_stdout();
} else {
acpi_parse_spcr(earlycon_acpi_spcr_enable, true);
if (IS_ENABLED(CONFIG_ACPI_BGRT))
acpi_table_parse(ACPI_SIG_BGRT, acpi_parse_bgrt);
}
}

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2 changes: 1 addition & 1 deletion drivers/acpi/Kconfig
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Expand Up @@ -460,7 +460,7 @@ config ACPI_HED

config ACPI_BGRT
bool "Boottime Graphics Resource Table support"
depends on EFI && (X86 || ARM64 || LOONGARCH)
depends on EFI
help
This driver adds support for exposing the ACPI Boottime Graphics
Resource Table, which allows the operating system to obtain
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