[PATCH 21/24] RISC-V: ACPI: Add ACPI initialization in setup_arch()

Sunil V L
2023-01-30T18:26:30Z

Initialize ACPI tables for RISC-V during boot.

Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
---
arch/riscv/kernel/setup.c | 19 ++++++++++++++-----
1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index 4335f08ffaf2..5b4ad1baf664 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -8,6 +8,7 @@
* Nick Kossifidis <mick@ics.forth.gr>
*/

+#include <linux/acpi.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/memblock.h>
@@ -276,14 +277,22 @@ void __init setup_arch(char **cmdline_p)

efi_init();
paging_init();
+
+ /* Parse the ACPI tables for possible boot-time configuration */
+ acpi_boot_table_init();
+ if (acpi_disabled) {
#if IS_ENABLED(CONFIG_BUILTIN_DTB)
- unflatten_and_copy_device_tree();
+ unflatten_and_copy_device_tree();
#else
- if (early_init_dt_verify(__va(XIP_FIXUP(dtb_early_pa))))
- unflatten_device_tree();
- else
- pr_err("No DTB found in kernel mappings\n");
+ if (early_init_dt_verify(__va(XIP_FIXUP(dtb_early_pa))))
+ unflatten_device_tree();
+ else
+ pr_err("No DTB found in kernel mappings\n");
#endif
+ } else {
+ early_init_dt_verify(__va(XIP_FIXUP(dtb_early_pa)));
+ }
+
early_init_fdt_scan_reserved_mem();
misc_mem_init();

--
2.38.0