[POWERPC] cell: handle kernel SLB setup in spu_base.c
Currently, the SPU context switch code (spufs/switch.c) sets up the
SPU's SLBs directly, which requires some low-level mm stuff.
This change moves the kernel SLB setup to spu_base.c, by exposing
a function spu_setup_kernel_slbs() to do this setup. This allows us
to remove the low-level mm code from switch.c, making it possible
to later move switch.c to the spufs module.
Also, add a struct spu_slb for the cases where we need to deal with
SLB entries.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/include/asm-powerpc/spu.h b/include/asm-powerpc/spu.h
index b1accce..844c7cd 100644
--- a/include/asm-powerpc/spu.h
+++ b/include/asm-powerpc/spu.h
@@ -104,6 +104,7 @@
struct spu_context;
struct spu_runqueue;
+struct spu_lscsa;
struct device_node;
enum spu_utilization_state {
@@ -200,6 +201,9 @@
int spu_irq_class_1_bottom(struct spu *spu);
void spu_irq_setaffinity(struct spu *spu, int cpu);
+void spu_setup_kernel_slbs(struct spu *spu,
+ struct spu_lscsa *lscsa, void *code);
+
#ifdef CONFIG_KEXEC
void crash_register_spus(struct list_head *list);
#else