device-tree: Move Arm's static-memory feature to common

This feature is arch agnostic, thus move it to common.

While at it, move xen/pfn.h inclusion in static-memory.h below #ifdef
CONFIG_STATIC_MEMORY when it is only needed.

Signed-off-by: Michal Orzel <michal.orzel@amd.com>
Acked-by: Julien Grall <jgrall@amazon.com>

xen/arch/arm/Makefile

@@ -51,7 +51,6 @@ obj-y += setup.o
 obj-y += shutdown.o
 obj-y += smp.o
 obj-y += smpboot.o
-obj-$(CONFIG_STATIC_MEMORY) += static-memory.init.o
 obj-$(CONFIG_STATIC_SHM) += static-shmem.init.o
 obj-y += sysctl.o
 obj-y += time.o

xen/arch/arm/arm32/mmu/mm.c

@@ -6,9 +6,9 @@
 #include <xen/mm.h>
 #include <xen/param.h>
 #include <xen/pfn.h>
+#include <xen/static-memory.h>
 #include <asm/fixmap.h>
 #include <asm/setup.h>
-#include <asm/static-memory.h>
 #include <asm/static-shmem.h>
 
 static unsigned long opt_xenheap_megabytes __initdata;

xen/arch/arm/arm64/mmu/mm.c

@@ -4,9 +4,9 @@
 #include <xen/llc-coloring.h>
 #include <xen/mm.h>
 #include <xen/pfn.h>
+#include <xen/static-memory.h>
 
 #include <asm/setup.h>
-#include <asm/static-memory.h>
 #include <asm/static-shmem.h>
 
 /* Override macros from asm/page.h to make them work with mfn_t */

xen/arch/arm/dom0less-build.c

@@ -12,6 +12,7 @@
 #include <xen/sched.h>
 #include <xen/serial.h>
 #include <xen/sizes.h>
+#include <xen/static-memory.h>
 #include <xen/vmap.h>
 
 #include <public/bootfdt.h>
@@ -22,7 +23,6 @@
 #include <asm/domain_build.h>
 #include <asm/grant_table.h>
 #include <asm/setup.h>
-#include <asm/static-memory.h>
 #include <asm/static-shmem.h>
 
 #ifdef CONFIG_VGICV2

xen/arch/arm/static-shmem.c

@@ -5,9 +5,9 @@
 #include <xen/libfdt/libfdt.h>
 #include <xen/rangeset.h>
 #include <xen/sched.h>
+#include <xen/static-memory.h>
 
 #include <asm/setup.h>
-#include <asm/static-memory.h>
 #include <asm/static-shmem.h>
 
 typedef struct {

xen/common/device-tree/Makefile

@@ -7,3 +7,4 @@ obj-$(CONFIG_OVERLAY_DTB) += dt-overlay.o
 obj-y += intc.o
 obj-$(CONFIG_DOMAIN_BUILD_HELPERS) += kernel.o
 obj-$(CONFIG_STATIC_EVTCHN) += static-evtchn.init.o
+obj-$(CONFIG_STATIC_MEMORY) += static-memory.init.o

xen/common/device-tree/dom0less-build.c

@@ -28,9 +28,7 @@
 #include <asm/dom0less-build.h>
 #include <asm/setup.h>
 
-#if __has_include(<asm/static-memory.h>)
+#include <xen/static-memory.h>
-#   include <asm/static-memory.h>
-#endif
 
 #if __has_include(<asm/static-shmem.h>)
 #   include <asm/static-shmem.h>
@@ -799,12 +797,10 @@ static int __init construct_domU(struct domain *d,
     {
         if ( !dt_find_property(node, "xen,static-mem", NULL) )
             allocate_memory(d, &kinfo);
-#ifdef CONFIG_STATIC_MEMORY
         else if ( !is_domain_direct_mapped(d) )
             allocate_static_memory(d, &kinfo, node);
         else
             assign_static_memory_11(d, &kinfo, node);
-#endif
 
 #ifdef CONFIG_STATIC_SHM
         rc = process_shm(d, &kinfo, node);

xen/common/device-tree/static-memory.c

@@ -1,9 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <xen/sched.h>
+#include <xen/static-memory.h>
 
 #include <asm/setup.h>
-#include <asm/static-memory.h>
 
 static bool __init append_static_memory_to_bank(struct domain *d,
                                                 struct membank *bank,

xen/include/xen/static-memory.h

@@ -1,13 +1,14 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
-#ifndef __ASM_STATIC_MEMORY_H_
+#ifndef XEN_STATIC_MEMORY_H
-#define __ASM_STATIC_MEMORY_H_
+#define XEN_STATIC_MEMORY_H
 
 #include <xen/fdt-kernel.h>
-#include <xen/pfn.h>
 
 #ifdef CONFIG_STATIC_MEMORY
 
+#include <xen/pfn.h>
+
 static inline void init_staticmem_bank(const struct membank *bank)
 {
     mfn_t bank_start = _mfn(PFN_UP(bank->start));
@@ -46,7 +47,7 @@ static inline void init_staticmem_pages(void) {};
 
 #endif /* CONFIG_STATIC_MEMORY */
 
-#endif /* __ASM_STATIC_MEMORY_H_ */
+#endif /* XEN_STATIC_MEMORY_H */
 
 /*
  * Local variables: