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authorKazunori Asayama <asayama@sm.sony.co.jp>2007-07-20 21:39:30 +0200
committerArnd Bergmann <arnd@klappe.arndb.de>2007-07-20 21:41:47 +0200
commit49776d30aea903fb2f9966c8e9b6f23ae5f7c937 (patch)
treed17073772de1e741960d5f741ce57e9fb6ead5b8 /include/asm-powerpc
parentd1450317554d52e0e4a454806c4d05bb2a834f00 (diff)
downloadop-kernel-dev-49776d30aea903fb2f9966c8e9b6f23ae5f7c937.zip
op-kernel-dev-49776d30aea903fb2f9966c8e9b6f23ae5f7c937.tar.gz
[CELL] spufs: Avoid unexpectedly restaring MFC during context save
The current SPU context saving procedure in SPUFS unexpectedly restarts MFC when halting decrementer, because MFC_CNTL[Dh] is set without MFC_CNTL[Sm]. This bug causes, for example, saving broken DMA queues. Here is a patch to fix the problem. Signed-off-by: Kazunori Asayama <asayama@sm.sony.co.jp> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Diffstat (limited to 'include/asm-powerpc')
-rw-r--r--include/asm-powerpc/spu.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-powerpc/spu.h b/include/asm-powerpc/spu.h
index 42d88a6..a034f03 100644
--- a/include/asm-powerpc/spu.h
+++ b/include/asm-powerpc/spu.h
@@ -411,6 +411,7 @@ struct spu_priv2 {
#define MFC_CNTL_RESUME_DMA_QUEUE (0ull << 0)
#define MFC_CNTL_SUSPEND_DMA_QUEUE (1ull << 0)
#define MFC_CNTL_SUSPEND_DMA_QUEUE_MASK (1ull << 0)
+#define MFC_CNTL_SUSPEND_MASK (1ull << 4)
#define MFC_CNTL_NORMAL_DMA_QUEUE_OPERATION (0ull << 8)
#define MFC_CNTL_SUSPEND_IN_PROGRESS (1ull << 8)
#define MFC_CNTL_SUSPEND_COMPLETE (3ull << 8)
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