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| author | Kazunori Asayama <asayama@sm.sony.co.jp> | 2007-07-20 21:39:30 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@klappe.arndb.de> | 2007-07-20 21:41:47 +0200 |
| commit | 49776d30aea903fb2f9966c8e9b6f23ae5f7c937 (patch) | |
| tree | d17073772de1e741960d5f741ce57e9fb6ead5b8 /include/asm-powerpc | |
| parent | [CELL] spufs: remove section mismatch warning (diff) | |
| download | linux-49776d30aea903fb2f9966c8e9b6f23ae5f7c937.tar.xz linux-49776d30aea903fb2f9966c8e9b6f23ae5f7c937.zip | |
[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.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-powerpc/spu.h b/include/asm-powerpc/spu.h index 42d88a6d2dfd..a034f03b8107 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) |