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[POWERPC] cell: handle kernel SLB setup in spu_base.c

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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>
This commit is contained in:
Jeremy Kerr
2007-12-05 13:49:31 +11:00
committed by Arnd Bergmann
parent a0a7ae8939
commit 58bd403c3c
3 changed files with 54 additions and 32 deletions
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4
include/asm-powerpc/spu.h
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@@ -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_0_bottom(struct spu *spu);
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