x86: acpi: Export acpi_fill_mcfg() with __weak attribute
Some platforms might require different approach when filling memory
mappings configuration table.
Allow them to override the common method.
At the same time export acpi_create_mcfg_mmconfig().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/x86/include/asm/acpi_table.h b/arch/x86/include/asm/acpi_table.h
index e177c44..8003850 100644
--- a/arch/x86/include/asm/acpi_table.h
+++ b/arch/x86/include/asm/acpi_table.h
@@ -314,6 +314,9 @@
int acpi_create_madt_lapic_nmi(struct acpi_madt_lapic_nmi *lapic_nmi,
u8 cpu, u16 flags, u8 lint);
u32 acpi_fill_madt(u32 current);
+int acpi_create_mcfg_mmconfig(struct acpi_mcfg_mmconfig *mmconfig, u32 base,
+ u16 seg_nr, u8 start, u8 end);
+u32 acpi_fill_mcfg(u32 current);
void acpi_create_gnvs(struct acpi_global_nvs *gnvs);
/**
* enter_acpi_mode() - enter into ACPI mode
diff --git a/arch/x86/lib/acpi_table.c b/arch/x86/lib/acpi_table.c
index 14d10c3..da6014f 100644
--- a/arch/x86/lib/acpi_table.c
+++ b/arch/x86/lib/acpi_table.c
@@ -293,8 +293,8 @@
header->checksum = table_compute_checksum((void *)madt, header->length);
}
-static int acpi_create_mcfg_mmconfig(struct acpi_mcfg_mmconfig *mmconfig,
- u32 base, u16 seg_nr, u8 start, u8 end)
+int acpi_create_mcfg_mmconfig(struct acpi_mcfg_mmconfig *mmconfig, u32 base,
+ u16 seg_nr, u8 start, u8 end)
{
memset(mmconfig, 0, sizeof(*mmconfig));
mmconfig->base_address_l = base;
@@ -306,7 +306,7 @@
return sizeof(struct acpi_mcfg_mmconfig);
}
-static u32 acpi_fill_mcfg(u32 current)
+__weak u32 acpi_fill_mcfg(u32 current)
{
current += acpi_create_mcfg_mmconfig
((struct acpi_mcfg_mmconfig *)current,