diff options
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/hw_ops.c')
-rw-r--r-- | arch/powerpc/platforms/cell/spufs/hw_ops.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/hw_ops.c b/arch/powerpc/platforms/cell/spufs/hw_ops.c index 5445719bff7..a13a8b5a014 100644 --- a/arch/powerpc/platforms/cell/spufs/hw_ops.c +++ b/arch/powerpc/platforms/cell/spufs/hw_ops.c @@ -232,6 +232,59 @@ static void spu_hw_runcntl_stop(struct spu_context *ctx) spin_unlock_irq(&ctx->spu->register_lock); } +static int spu_hw_set_mfc_query(struct spu_context * ctx, u32 mask, u32 mode) +{ + struct spu_problem *prob = ctx->spu->problem; + int ret; + + spin_lock_irq(&ctx->spu->register_lock); + ret = -EAGAIN; + if (in_be32(&prob->dma_querytype_RW)) + goto out; + ret = 0; + out_be32(&prob->dma_querymask_RW, mask); + out_be32(&prob->dma_querytype_RW, mode); +out: + spin_unlock_irq(&ctx->spu->register_lock); + return ret; +} + +static u32 spu_hw_read_mfc_tagstatus(struct spu_context * ctx) +{ + return in_be32(&ctx->spu->problem->dma_tagstatus_R); +} + +static u32 spu_hw_get_mfc_free_elements(struct spu_context *ctx) +{ + return in_be32(&ctx->spu->problem->dma_qstatus_R); +} + +static int spu_hw_send_mfc_command(struct spu_context *ctx, + struct mfc_dma_command *cmd) +{ + u32 status; + struct spu_problem *prob = ctx->spu->problem; + + spin_lock_irq(&ctx->spu->register_lock); + out_be32(&prob->mfc_lsa_W, cmd->lsa); + out_be64(&prob->mfc_ea_W, cmd->ea); + out_be32(&prob->mfc_union_W.by32.mfc_size_tag32, + cmd->size << 16 | cmd->tag); + out_be32(&prob->mfc_union_W.by32.mfc_class_cmd32, + cmd->class << 16 | cmd->cmd); + status = in_be32(&prob->mfc_union_W.by32.mfc_class_cmd32); + spin_unlock_irq(&ctx->spu->register_lock); + + switch (status & 0xffff) { + case 0: + return 0; + case 2: + return -EAGAIN; + default: + return -EINVAL; + } +} + struct spu_context_ops spu_hw_ops = { .mbox_read = spu_hw_mbox_read, .mbox_stat_read = spu_hw_mbox_stat_read, @@ -252,4 +305,8 @@ struct spu_context_ops spu_hw_ops = { .get_ls = spu_hw_get_ls, .runcntl_write = spu_hw_runcntl_write, .runcntl_stop = spu_hw_runcntl_stop, + .set_mfc_query = spu_hw_set_mfc_query, + .read_mfc_tagstatus = spu_hw_read_mfc_tagstatus, + .get_mfc_free_elements = spu_hw_get_mfc_free_elements, + .send_mfc_command = spu_hw_send_mfc_command, }; |