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| author |   Masato Noguchi <Masato.Noguchi@jp.sony.com> | 2007-07-20 21:39:38 +0200 |
|---|---|---|
| committer |   Arnd Bergmann <arnd@klappe.arndb.de> | 2007-07-20 21:41:56 +0200 |
| commit | d40a01d4f4f205d0645beb371edc153d9ec8fb9f (patch) | |
| tree | 7ac0b4d28b0d747535f910b1d727af6762b2c2bb /arch/powerpc/platforms/cell/spufs/file.c | |
| parent | [CELL] spufs: fix decr_status meanings (diff) | |
| download | linux-dev-d40a01d4f4f205d0645beb371edc153d9ec8fb9f.tar.xz linux-dev-d40a01d4f4f205d0645beb371edc153d9ec8fb9f.zip | |
[CELL] spufs: fix read and write for decr_status file
The decr_status in the LSCSA is valid only in the sequence of context
restore. Thus, it's nonsense to read and/or write it through spufs.
This patch changes decr_status node to access MFC_CNTL[Ds] in the CSA.
Signed-off-by: Masato Noguchi <Masato.Noguchi@jp.sony.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/file.c')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/file.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c index 88da996f6d2f..7de4e919687b 100644 --- a/arch/powerpc/platforms/cell/spufs/file.c +++ b/arch/powerpc/platforms/cell/spufs/file.c @@ -1651,17 +1651,21 @@ DEFINE_SIMPLE_ATTRIBUTE(spufs_decr_ops, spufs_decr_get, spufs_decr_set, static void spufs_decr_status_set(void *data, u64 val) { struct spu_context *ctx = data; - struct spu_lscsa *lscsa = ctx->csa.lscsa; spu_acquire_saved(ctx); - lscsa->decr_status.slot[0] = (u32) val; + if (val) + ctx->csa.priv2.mfc_control_RW |= MFC_CNTL_DECREMENTER_RUNNING; + else + ctx->csa.priv2.mfc_control_RW &= ~MFC_CNTL_DECREMENTER_RUNNING; spu_release_saved(ctx); } static u64 __spufs_decr_status_get(void *data) { struct spu_context *ctx = data; - struct spu_lscsa *lscsa = ctx->csa.lscsa; - return lscsa->decr_status.slot[0]; + if (ctx->csa.priv2.mfc_control_RW & MFC_CNTL_DECREMENTER_RUNNING) + return SPU_DECR_STATUS_RUNNING; + else + return 0; } static u64 spufs_decr_status_get(void *data) |