acpi,Makefile: Add preload_acpi_dsdt
This will allow us to preload the dsdt.aml file.
BUG=b:179699789
TEST=Build guybrush
| 80 - write tables | 1.564 | 1.08 Δ( -0.48, -0.03%) |
| 85 - finalize chips | 15.483 | 13.543 Δ( -1.94, -0.14%) |
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Ibf69ecb947811a2eec861018e3ba5f858155f1c3
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59504
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
diff --git a/src/acpi/acpi.c b/src/acpi/acpi.c
index 78c3fd3..3bf57c6 100644
--- a/src/acpi/acpi.c
+++ b/src/acpi/acpi.c
@@ -1577,6 +1577,17 @@
return 0;
}
+void preload_acpi_dsdt(void)
+{
+ const char *file = CONFIG_CBFS_PREFIX "/dsdt.aml";
+
+ if (!CONFIG(CBFS_PRELOAD))
+ return;
+
+ printk(BIOS_DEBUG, "Preloading %s\n", file);
+ cbfs_preload(file);
+}
+
unsigned long write_acpi_tables(unsigned long start)
{
unsigned long current;
diff --git a/src/include/acpi/acpi.h b/src/include/acpi/acpi.h
index 4f059bb..4a95855 100644
--- a/src/include/acpi/acpi.h
+++ b/src/include/acpi/acpi.h
@@ -1215,6 +1215,7 @@
unsigned long fw_cfg_acpi_tables(unsigned long start);
/* These are implemented by the target port or north/southbridge. */
+void preload_acpi_dsdt(void);
unsigned long write_acpi_tables(unsigned long addr);
unsigned long acpi_fill_madt(unsigned long current);
unsigned long acpi_fill_ivrs_ioapic(acpi_ivrs_t *ivrs, unsigned long current);