From ccf17e9d008dfebbf90dfa4ee1a56e81c784c73e Mon Sep 17 00:00:00 2001 From: Jeremy Kerr Date: Mon, 23 Apr 2007 21:08:29 +0200 Subject: [PATCH] [POWERPC] spu_base: fix initialisation on systems with no SPEs This change fixes the case where spu_base and spufs are initialised on a system with no SPEs - unconditionally create the spu_lists so spu_alloc doesn't explode, and check for spu_management ops before starting spufs. Signed-off-by: Jeremy Kerr Signed-off-by: Arnd Bergmann arch/powerpc/platforms/cell/spu_base.c | 7 ++++--- arch/powerpc/platforms/cell/spufs/inode.c | 5 +++++ 2 files changed, 9 insertions(+), 3 deletions(-) --- arch/powerpc/platforms/cell/spu_base.c | 8 +++++--- arch/powerpc/platforms/cell/spufs/inode.c | 5 +++++ 2 files changed, 10 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index 2e8aa9433b3..8086eb1ed60 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -36,6 +36,8 @@ #include const struct spu_management_ops *spu_management_ops; +EXPORT_SYMBOL_GPL(spu_management_ops); + const struct spu_priv1_ops *spu_priv1_ops; static struct list_head spu_list[MAX_NUMNODES]; @@ -589,6 +591,9 @@ static int __init init_spu_base(void) { int i, ret = 0; + for (i = 0; i < MAX_NUMNODES; i++) + INIT_LIST_HEAD(&spu_list[i]); + if (!spu_management_ops) goto out; @@ -597,9 +602,6 @@ static int __init init_spu_base(void) if (ret) goto out; - for (i = 0; i < MAX_NUMNODES; i++) - INIT_LIST_HEAD(&spu_list[i]); - ret = spu_enumerate_spus(create_spu); if (ret) { diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c index 8f6cd876330..13e4f70ec8c 100644 --- a/arch/powerpc/platforms/cell/spufs/inode.c +++ b/arch/powerpc/platforms/cell/spufs/inode.c @@ -36,6 +36,7 @@ #include #include #include +#include #include #include "spufs.h" @@ -665,6 +666,10 @@ static int __init spufs_init(void) { int ret; + ret = -ENODEV; + if (!spu_management_ops) + goto out; + ret = -ENOMEM; spufs_inode_cache = kmem_cache_create("spufs_inode_cache", sizeof(struct spufs_inode_info), 0, -- 2.20.1