From: Masato Noguchi <[EMAIL PROTECTED]> Currently, the kernel may fail to restart a SPE context which has stopped and been swapped out.
This patch changes spu_backing_runcntl_write to emulate the real SPU_Status register exactly. When the SPU Run Control register is written with SPU_RunCntl[Run] set to '1', the physical SPU automatically sets SPU_Status[R] and clears SPU_Status[CISHP]. Signed-off-by: Masato Noguchi <[EMAIL PROTECTED]> Signed-off-by: Jeremy Kerr <[EMAIL PROTECTED]> --- arch/powerpc/platforms/cell/spufs/backing_ops.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/powerpc/platforms/cell/spufs/backing_ops.c b/arch/powerpc/platforms/cell/spufs/backing_ops.c index 50d98a1..64eb15b 100644 --- a/arch/powerpc/platforms/cell/spufs/backing_ops.c +++ b/arch/powerpc/platforms/cell/spufs/backing_ops.c @@ -288,6 +288,12 @@ static void spu_backing_runcntl_write(struct spu_context *ctx, u32 val) spin_lock(&ctx->csa.register_lock); ctx->csa.prob.spu_runcntl_RW = val; if (val & SPU_RUNCNTL_RUNNABLE) { + ctx->csa.prob.spu_status_R &= + ~SPU_STATUS_STOPPED_BY_STOP & + ~SPU_STATUS_STOPPED_BY_HALT & + ~SPU_STATUS_SINGLE_STEP & + ~SPU_STATUS_INVALID_INSTR & + ~SPU_STATUS_INVALID_CH; ctx->csa.prob.spu_status_R |= SPU_STATUS_RUNNING; } else { ctx->csa.prob.spu_status_R &= ~SPU_STATUS_RUNNING; _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev