diff options
Diffstat (limited to 'drivers/dma/ioat')
| -rw-r--r-- | drivers/dma/ioat/dma.c | 28 | ||||
| -rw-r--r-- | drivers/dma/ioat/hw.h | 38 |
2 files changed, 34 insertions, 32 deletions
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c index b7508041c6d..4840d4805d8 100644 --- a/drivers/dma/ioat/dma.c +++ b/drivers/dma/ioat/dma.c @@ -472,9 +472,9 @@ static dma_cookie_t ioat1_tx_submit(struct dma_async_tx_descriptor *tx) return -ENOMEM; } - hw->ctl = IOAT_DMA_DESCRIPTOR_CTL_CP_STS; + hw->ctl_f.compl_write = 1; if (first->txd.callback) { - hw->ctl |= IOAT_DMA_DESCRIPTOR_CTL_INT_GN; + hw->ctl_f.int_en = 1; if (first != new) { /* move callback into to last desc */ new->txd.callback = first->txd.callback; @@ -563,9 +563,9 @@ static dma_cookie_t ioat2_tx_submit(struct dma_async_tx_descriptor *tx) return -ENOMEM; } - hw->ctl |= IOAT_DMA_DESCRIPTOR_CTL_CP_STS; + hw->ctl_f.compl_write = 1; if (first->txd.callback) { - hw->ctl |= IOAT_DMA_DESCRIPTOR_CTL_INT_GN; + hw->ctl_f.int_en = 1; if (first != new) { /* move callback into to last desc */ new->txd.callback = first->txd.callback; @@ -878,7 +878,8 @@ ioat2_dma_get_next_descriptor(struct ioat_dma_chan *ioat_chan) noop_desc = to_ioat_desc(ioat_chan->used_desc.next); /* set size to non-zero value (channel returns error when size is 0) */ noop_desc->hw->size = NULL_DESC_BUFFER_SIZE; - noop_desc->hw->ctl = IOAT_DMA_DESCRIPTOR_NUL; + noop_desc->hw->ctl = 0; + noop_desc->hw->ctl_f.null = 1; noop_desc->hw->src_addr = 0; noop_desc->hw->dst_addr = 0; @@ -1230,6 +1231,7 @@ ioat_dma_is_complete(struct dma_chan *chan, dma_cookie_t cookie, static void ioat_dma_start_null_desc(struct ioat_dma_chan *ioat_chan) { struct ioat_desc_sw *desc; + struct ioat_dma_descriptor *hw; spin_lock_bh(&ioat_chan->desc_lock); @@ -1242,17 +1244,19 @@ static void ioat_dma_start_null_desc(struct ioat_dma_chan *ioat_chan) return; } - desc->hw->ctl = IOAT_DMA_DESCRIPTOR_NUL - | IOAT_DMA_DESCRIPTOR_CTL_INT_GN - | IOAT_DMA_DESCRIPTOR_CTL_CP_STS; + hw = desc->hw; + hw->ctl = 0; + hw->ctl_f.null = 1; + hw->ctl_f.int_en = 1; + hw->ctl_f.compl_write = 1; /* set size to non-zero value (channel returns error when size is 0) */ - desc->hw->size = NULL_DESC_BUFFER_SIZE; - desc->hw->src_addr = 0; - desc->hw->dst_addr = 0; + hw->size = NULL_DESC_BUFFER_SIZE; + hw->src_addr = 0; + hw->dst_addr = 0; async_tx_ack(&desc->txd); switch (ioat_chan->device->version) { case IOAT_VER_1_2: - desc->hw->next = 0; + hw->next = 0; list_add_tail(&desc->node, &ioat_chan->used_desc); writel(((u64) desc->txd.phys) & 0x00000000FFFFFFFF, diff --git a/drivers/dma/ioat/hw.h b/drivers/dma/ioat/hw.h index 1438fa5c4d1..e13f3ed4776 100644 --- a/drivers/dma/ioat/hw.h +++ b/drivers/dma/ioat/hw.h @@ -40,7 +40,24 @@ struct ioat_dma_descriptor { uint32_t size; - uint32_t ctl; + union { + uint32_t ctl; + struct { + unsigned int int_en:1; + unsigned int src_snoop_dis:1; + unsigned int dest_snoop_dis:1; + unsigned int compl_write:1; + unsigned int fence:1; + unsigned int null:1; + unsigned int src_brk:1; + unsigned int dest_brk:1; + unsigned int bundle:1; + unsigned int dest_dca:1; + unsigned int hint:1; + unsigned int rsvd2:13; + unsigned int op:8; + } ctl_f; + }; uint64_t src_addr; uint64_t dst_addr; uint64_t next; @@ -49,23 +66,4 @@ struct ioat_dma_descriptor { uint64_t user1; uint64_t user2; }; - -#define IOAT_DMA_DESCRIPTOR_CTL_INT_GN 0x00000001 -#define IOAT_DMA_DESCRIPTOR_CTL_SRC_SN 0x00000002 -#define IOAT_DMA_DESCRIPTOR_CTL_DST_SN 0x00000004 -#define IOAT_DMA_DESCRIPTOR_CTL_CP_STS 0x00000008 -#define IOAT_DMA_DESCRIPTOR_CTL_FRAME 0x00000010 -#define IOAT_DMA_DESCRIPTOR_NUL 0x00000020 -#define IOAT_DMA_DESCRIPTOR_CTL_SP_BRK 0x00000040 -#define IOAT_DMA_DESCRIPTOR_CTL_DP_BRK 0x00000080 -#define IOAT_DMA_DESCRIPTOR_CTL_BNDL 0x00000100 -#define IOAT_DMA_DESCRIPTOR_CTL_DCA 0x00000200 -#define IOAT_DMA_DESCRIPTOR_CTL_BUFHINT 0x00000400 - -#define IOAT_DMA_DESCRIPTOR_CTL_OPCODE_CONTEXT 0xFF000000 -#define IOAT_DMA_DESCRIPTOR_CTL_OPCODE_DMA 0x00000000 - -#define IOAT_DMA_DESCRIPTOR_CTL_CONTEXT_DCA 0x00000001 -#define IOAT_DMA_DESCRIPTOR_CTL_OPCODE_MASK 0xFF000000 - #endif |