xtensa: move headers files to arch/xtensa/include

Move all header files for xtensa to arch/xtensa/include and platform and
variant header files to the appropriate arch/xtensa/platforms/ and
arch/xtensa/variants/ directories.

Moving the files gets also rid of all uses of symlinks in the Makefile.

This has been completed already for the majority of the architectures
and xtensa is one out of six missing.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Chris Zankel <chris@zankel.net>

arch/xtensa/Makefile

@@ -33,6 +33,15 @@ KBUILD_CFLAGS += -ffreestanding
 
 KBUILD_CFLAGS += -pipe -mlongcalls
 
+vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y))
+plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y))
+
+ifeq ($(KBUILD_SRC),)
+KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(vardirs) $(plfdirs))
+else
+KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs))
+endif
+
 KBUILD_DEFCONFIG := iss_defconfig
 
 # ramdisk/initrd support
@@ -66,21 +75,6 @@ libs-y		+= arch/xtensa/lib/ $(LIBGCC)
 
 boot		:= arch/xtensa/boot
 
-archinc		:= include/asm-xtensa
-
-archprepare: $(archinc)/.platform
-
-# Update processor variant and platform symlinks if something which affects
-# them changed.
-
-$(archinc)/.platform: $(wildcard include/config/arch/*.h) include/config/auto.conf
-	@echo '  SYMLINK $(archinc)/variant -> $(archinc)/variant-$(VARIANT)'
-	$(Q)mkdir -p $(archinc)
-	$(Q)ln -fsn $(srctree)/$(archinc)/variant-$(VARIANT) $(archinc)/variant
-	@echo '  SYMLINK $(archinc)/platform -> $(archinc)/platform-$(PLATFORM)'
-	$(Q)ln -fsn $(srctree)/$(archinc)/platform-$(PLATFORM) $(archinc)/platform
-	@touch $@
-
 
 all: zImage
 
@@ -89,10 +83,6 @@ bzImage : zImage
 zImage zImage.initrd: vmlinux
 	$(Q)$(MAKE) $(build)=$(boot) $@
 
-CLEAN_FILES	+= arch/xtensa/vmlinux.lds                      \
-		   $(archinc)/platform $(archinc)/variant	\
-		   $(archinc)/.platform
-
 define archhelp
   @echo '* zImage      - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
 endef

arch/xtensa/boot/boot-elf/boot.lds.S

@@ -1,4 +1,4 @@
-#include <asm/variant/core.h>
+#include <variant/core.h>
 OUTPUT_ARCH(xtensa)
 ENTRY(_ResetVector)
 

arch/xtensa/boot/boot-redboot/bootstrap.S

@@ -1,4 +1,4 @@
-#include <asm/variant/core.h>
+#include <variant/core.h>
 #include <asm/regs.h>
 #include <asm/asmmacro.h>
 #include <asm/cacheasm.h>

arch/xtensa/include/asm/asmmacro.h

@@ -11,7 +11,7 @@
 #ifndef _XTENSA_ASMMACRO_H
 #define _XTENSA_ASMMACRO_H
 
-#include <asm/variant/core.h>
+#include <variant/core.h>
 
 /*
  * Some little helpers for loops. Use zero-overhead-loops

arch/xtensa/include/asm/cache.h

@@ -11,7 +11,7 @@
 #ifndef _XTENSA_CACHE_H
 #define _XTENSA_CACHE_H
 
-#include <asm/variant/core.h>
+#include <variant/core.h>
 
 #define L1_CACHE_SHIFT	XCHAL_DCACHE_LINEWIDTH
 #define L1_CACHE_BYTES	XCHAL_DCACHE_LINESIZE

arch/xtensa/include/asm/checksum.h

@@ -12,7 +12,7 @@
 #define _XTENSA_CHECKSUM_H
 
 #include <linux/in6.h>
-#include <asm/variant/core.h>
+#include <variant/core.h>
 
 /*
  * computes the checksum of a memory block at buff, length len,

arch/xtensa/include/asm/coprocessor.h

@@ -13,11 +13,11 @@
 #define _XTENSA_COPROCESSOR_H
 
 #include <linux/stringify.h>
-#include <asm/variant/tie.h>
+#include <variant/tie.h>
 #include <asm/types.h>
 
 #ifdef __ASSEMBLY__
-# include <asm/variant/tie-asm.h>
+# include <variant/tie-asm.h>
 
 .macro	xchal_sa_start  a b
 	.set .Lxchal_pofs_, 0