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| author | arnd@arndb.de <arnd@arndb.de> | 2006-06-19 20:33:35 +0200 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-06-21 15:01:32 +1000 |
| commit | 379507181a1e330d4f5b0fabe61cd43eccf09763 (patch) | |
| tree | dc986704087a40854a9f8a386d125627b20dee14 /arch/powerpc/platforms/cell/spufs/Makefile | |
| parent | c983294872ebccd4aacf1b8dd694ac2170feadc3 (diff) | |
| download | lwn-379507181a1e330d4f5b0fabe61cd43eccf09763.tar.gz lwn-379507181a1e330d4f5b0fabe61cd43eccf09763.zip | |
[POWERPC] spufs: one more fix for 64k pages
The SPU context save/restore code is currently built
for a 4k page size and we provide a _shipped version
of it since most people don't have the spu toolchain
that is needed to rebuild that code.
This patch hardcodes the data structures to a 64k
page alignment, which also guarantees 4k alignment
but unfortunately wastes 60k of memory per SPU
context that is created in the running system.
We will follow up on this with another patch to
reduce that overhead or maybe redo the context
save/restore logic to do this part entirely different,
but for now it should make experimental systems
work with either page size.
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/Makefile')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/Makefile | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/Makefile b/arch/powerpc/platforms/cell/spufs/Makefile index e3c4482be3be..bb5dc634272c 100644 --- a/arch/powerpc/platforms/cell/spufs/Makefile +++ b/arch/powerpc/platforms/cell/spufs/Makefile @@ -10,8 +10,10 @@ 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$(objtree)/include2 +SPU_CFLAGS := -O2 -Wall -I$(srctree)/include \ + -I$(objtree)/include2 -D__KERNEL__ +SPU_AFLAGS := -c -D__ASSEMBLY__ -I$(srctree)/include \ + -I$(objtree)/include2 -D__KERNEL__ SPU_LDFLAGS := -N -Ttext=0x0 $(obj)/switch.o: $(obj)/spu_save_dump.h $(obj)/spu_restore_dump.h @@ -48,7 +50,8 @@ cmd_hexdump = ( \ echo " * Hex-dump auto generated from $*.c." ; \ echo " * Do not edit!" ; \ echo " */" ; \ - echo "static unsigned int $*_code[] __page_aligned = {" ; \ + echo "static unsigned int $*_code[] " \ + "__attribute__((__aligned__(128))) = {" ; \ hexdump -v -e '"0x" 4/1 "%02x" "," "\n"' $< ; \ echo "};" ; \ ) > $@ |