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| author | Jeremy Kerr <jk@ozlabs.org> | 2007-04-23 19:08:29 (GMT) |
|---|---|---|
| committer | Arnd Bergmann <arnd@klappe.arndb.de> | 2007-04-23 19:19:00 (GMT) |
| commit | ccf17e9d008dfebbf90dfa4ee1a56e81c784c73e (patch) | |
| tree | 9d33f1e33f49b1ec82af24a3d8ab65750936f97a | |
| parent | befdc746ee027d686a06be29cb1391f9d2c45cf6 (diff) | |
| download | linux-fsl-qoriq-ccf17e9d008dfebbf90dfa4ee1a56e81c784c73e.tar.xz | |
[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 <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
arch/powerpc/platforms/cell/spu_base.c | 7 ++++---
arch/powerpc/platforms/cell/spufs/inode.c | 5 +++++
2 files changed, 9 insertions(+), 3 deletions(-)
| -rw-r--r-- | arch/powerpc/platforms/cell/spu_base.c | 8 | ||||
| -rw-r--r-- | 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 2e8aa94..8086eb1 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -36,6 +36,8 @@ #include <asm/xmon.h> 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 8f6cd87..13e4f70 100644 --- a/arch/powerpc/platforms/cell/spufs/inode.c +++ b/arch/powerpc/platforms/cell/spufs/inode.c @@ -36,6 +36,7 @@ #include <asm/prom.h> #include <asm/semaphore.h> #include <asm/spu.h> +#include <asm/spu_priv1.h> #include <asm/uaccess.h> #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, |