In 32bit we will find table with phys address during 32bit flat mode
in head_32.S, because at that time we don't need set page table to
access initrd.

For copying we could use early_ioremap() with phys directly before mem mapping
is set.

To keep 32bit and 64bit consistent, use phys_addr for all.

-v2: introduce file_pos to save phys address instead of abusing cpio_data
        that tj is not happy with.

Signed-off-by: Yinghai Lu <ying...@kernel.org>
Cc: Rafael J. Wysocki <r...@sisk.pl>
Cc: linux-a...@vger.kernel.org
Tested-by: Thomas Renninger <tr...@suse.de>
---
 drivers/acpi/osl.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 21714fb..ee5c531 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -570,7 +570,11 @@ static const char * const table_sigs[] = {
 #define ACPI_HEADER_SIZE sizeof(struct acpi_table_header)
 
 #define ACPI_OVERRIDE_TABLES 64
-static struct cpio_data __initdata acpi_initrd_files[ACPI_OVERRIDE_TABLES];
+struct file_pos {
+       phys_addr_t data;
+       phys_addr_t size;
+};
+static struct file_pos __initdata acpi_initrd_files[ACPI_OVERRIDE_TABLES];
 
 void __init acpi_initrd_override_find(void *data, size_t size)
 {
@@ -615,7 +619,7 @@ void __init acpi_initrd_override_find(void *data, size_t 
size)
                        table->signature, cpio_path, file.name, table->length);
 
                all_tables_size += table->length;
-               acpi_initrd_files[table_nr].data = file.data;
+               acpi_initrd_files[table_nr].data = __pa_nodebug(file.data);
                acpi_initrd_files[table_nr].size = file.size;
                table_nr++;
        }
@@ -624,7 +628,7 @@ void __init acpi_initrd_override_find(void *data, size_t 
size)
 void __init acpi_initrd_override_copy(void)
 {
        int no, total_offset = 0;
-       char *p;
+       char *p, *q;
 
        if (!all_tables_size)
                return;
@@ -659,12 +663,15 @@ void __init acpi_initrd_override_copy(void)
         * one by one during copying.
         */
        for (no = 0; no < ACPI_OVERRIDE_TABLES; no++) {
+               phys_addr_t addr = acpi_initrd_files[no].data;
                phys_addr_t size = acpi_initrd_files[no].size;
 
                if (!size)
                        break;
+               q = early_ioremap(addr, size);
                p = early_ioremap(acpi_tables_addr + total_offset, size);
-               memcpy(p, acpi_initrd_files[no].data, size);
+               memcpy(p, q, size);
+               early_iounmap(q, size);
                early_iounmap(p, size);
                total_offset += size;
        }
-- 
1.8.1.4

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