[ioapi] Move get_memmap() to the I/O API group

pcbios specific get_memmap() is used by the b44 driver making
all-drivers builds fail on other platforms.  Move it to the I/O API
group and provide a dummy implementation on EFI.

Signed-off-by: Piotr Jaroszyński <p.jaroszynski@gmail.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/arch/i386/core/relocate.c

@@ -1,6 +1,5 @@
 #include <ipxe/io.h>
 #include <registers.h>
-#include <ipxe/memmap.h>
 
 /*
  * Originally by Eric Biederman

src/arch/i386/firmware/pcbios/hidemem.c

@@ -23,7 +23,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
 #include <basemem.h>
 #include <fakee820.h>
 #include <ipxe/init.h>
-#include <ipxe/memmap.h>
+#include <ipxe/io.h>
 #include <ipxe/hidemem.h>
 
 /** Set to true if you want to test a fake E820 map */

src/arch/i386/firmware/pcbios/memmap.c

@@ -23,7 +23,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
 #include <realmode.h>
 #include <bios.h>
 #include <memsizes.h>
-#include <ipxe/memmap.h>
+#include <ipxe/io.h>
 
 /**
  * @file
@@ -282,7 +282,7 @@ static int meme820 ( struct memory_map *memmap ) {
  *
  * @v memmap		Memory map to fill in
  */
-void get_memmap ( struct memory_map *memmap ) {
+void x86_get_memmap ( struct memory_map *memmap ) {
 	unsigned int basemem, extmem;
 	int rc;
 
@@ -310,3 +310,5 @@ void get_memmap ( struct memory_map *memmap ) {
 	memmap->regions[1].end = 0x100000 + ( extmem * 1024 );
 	memmap->count = 2;
 }
+
+PROVIDE_IOAPI ( x86, get_memmap, x86_get_memmap );

src/arch/i386/image/com32.c

@@ -38,7 +38,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
 #include <ipxe/image.h>
 #include <ipxe/segment.h>
 #include <ipxe/init.h>
-#include <ipxe/memmap.h>
+#include <ipxe/io.h>
 
 struct image_type com32_image_type __image_type ( PROBE_NORMAL );
 

src/arch/i386/image/multiboot.c

@@ -33,7 +33,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
 #include <ipxe/uaccess.h>
 #include <ipxe/image.h>
 #include <ipxe/segment.h>
-#include <ipxe/memmap.h>
+#include <ipxe/io.h>
 #include <ipxe/elf.h>
 #include <ipxe/init.h>
 #include <ipxe/features.h>

src/arch/i386/interface/pcbios/int13.c

@@ -25,7 +25,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
 #include <assert.h>
 #include <ipxe/list.h>
 #include <ipxe/blockdev.h>
-#include <ipxe/memmap.h>
+#include <ipxe/io.h>
 #include <realmode.h>
 #include <bios.h>
 #include <biosint.h>

src/arch/i386/interface/pcbios/memtop_umalloc.c

@@ -29,7 +29,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
 #include <errno.h>
 #include <ipxe/uaccess.h>
 #include <ipxe/hidemem.h>
-#include <ipxe/memmap.h>
+#include <ipxe/io.h>
 #include <ipxe/umalloc.h>
 
 /** Alignment of external allocated memory */