[PATCH] spufs: add spu-side context switch code

[pandora-kernel.git] / arch / powerpc / platforms / cell / spufs / Makefile

diff --git a/arch/powerpc/platforms/cell/spufs/Makefile b/arch/powerpc/platforms/cell/spufs/Makefile
index e70e3cc..b38ab74 100644 (file)
--- a/arch/powerpc/platforms/cell/spufs/Makefile
+++ b/arch/powerpc/platforms/cell/spufs/Makefile
@@ -2,4 +2,53 @@ obj-$(CONFIG_SPU_FS) += spufs.o
 
 spufs-y += inode.o file.o context.o switch.o syscalls.o
 
+# Rules to build switch.o with the help of SPU tool chain
+SPU_CROSS      := spu-
+SPU_CC         := $(SPU_CROSS)gcc
+SPU_AS         := $(SPU_CROSS)gcc
+SPU_LD         := $(SPU_CROSS)ld
+SPU_OBJCOPY    := $(SPU_CROSS)objcopy
+SPU_CFLAGS     := -O2 -Wall -I$(srctree)/include -I$(objtree)/include2
+SPU_AFLAGS     := -c -D__ASSEMBLY__ -I$(srctree)/include -I$(objtree)/include2
+SPU_LDFLAGS    := -N -Ttext=0x0
+
 $(obj)/switch.o: $(obj)/spu_save_dump.h $(obj)/spu_restore_dump.h
+
+# Compile SPU files
+      cmd_spu_cc = $(SPU_CC) $(SPU_CFLAGS) -c -o $@ $<
+quiet_cmd_spu_cc = SPU_CC  $@
+$(obj)/spu_%.o: $(src)/spu_%.c
+       $(call if_changed,spu_cc)
+
+# Assemble SPU files
+      cmd_spu_as = $(SPU_AS) $(SPU_AFLAGS) -o $@ $<
+quiet_cmd_spu_as = SPU_AS  $@
+$(obj)/spu_%.o: $(src)/spu_%.S
+       $(call if_changed,spu_as)
+
+# Link SPU Executables
+      cmd_spu_ld = $(SPU_LD) $(SPU_LDFLAGS) -o $@ $^
+quiet_cmd_spu_ld = SPU_LD  $@
+$(obj)/spu_%: $(obj)/spu_%_crt0.o $(obj)/spu_%.o
+       $(call if_changed,spu_ld)
+
+# Copy into binary format
+      cmd_spu_objcopy = $(SPU_OBJCOPY) -O binary $< $@
+quiet_cmd_spu_objcopy = OBJCOPY $@
+$(obj)/spu_%.bin: $(src)/spu_%
+       $(call if_changed,spu_objcopy)
+
+# create C code from ELF executable
+cmd_hexdump   = ( \
+               echo "/*" ; \
+               echo " * $*_dump.h: Copyright (C) 2005 IBM." ; \
+               echo " * Hex-dump auto generated from $*.c." ; \
+               echo " * Do not edit!" ; \
+               echo " */" ; \
+               echo "static unsigned int $*_code[] __page_aligned = {" ; \
+               hexdump -v -e '4/4 "0x%08x, " "\n"' $< ; \
+               echo "};" ; \
+               ) > $@
+quiet_cmd_hexdump = HEXDUMP $@
+$(obj)/%_dump.h: $(obj)/%.bin
+       $(call if_changed,hexdump)