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Commit d7244e9a authored by Russell King - ARM Linux's avatar Russell King - ARM Linux Committed by Dan Williams
Browse files

ARM: PL08x: shrink srcbus/dstbus in txd structure 



We only need to store the dma address.

Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: default avatarLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent 542361f8

drivers/dma/amba-pl08x.c

+10 −10
Original line number Diff line number Diff line
@@ -595,8 +595,8 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, 


	bd.txd = txd;

	bd.pl08x = pl08x;

	bd.srcbus.addr = txd->srcbus.addr;

	bd.dstbus.addr = txd->dstbus.addr;

	bd.srcbus.addr = txd->src_addr;

	bd.dstbus.addr = txd->dst_addr;



	/* Find maximum width of the source bus */

	bd.srcbus.maxwidth =
@@ -1313,8 +1313,8 @@ static struct dma_async_tx_descriptor *pl08x_prep_dma_memcpy( 
	}



	txd->direction = DMA_NONE;

	txd->srcbus.addr = src;

	txd->dstbus.addr = dest;

	txd->src_addr = src;

	txd->dst_addr = dest;

	txd->len = len;



	/* Set platform data for m2m */
@@ -1393,21 +1393,21 @@ static struct dma_async_tx_descriptor *pl08x_prep_slave_sg( 
	if (direction == DMA_TO_DEVICE) {

		txd->ccfg |= PL080_FLOW_MEM2PER << PL080_CONFIG_FLOW_CONTROL_SHIFT;

		txd->cctl |= PL080_CONTROL_SRC_INCR;

		txd->srcbus.addr = sgl->dma_address;

		txd->src_addr = sgl->dma_address;

		if (plchan->runtime_addr)

			txd->dstbus.addr = plchan->runtime_addr;

			txd->dst_addr = plchan->runtime_addr;

		else

			txd->dstbus.addr = plchan->cd->addr;

			txd->dst_addr = plchan->cd->addr;

		src_buses = pl08x->mem_buses;

		dst_buses = plchan->cd->periph_buses;

	} else if (direction == DMA_FROM_DEVICE) {

		txd->ccfg |= PL080_FLOW_PER2MEM << PL080_CONFIG_FLOW_CONTROL_SHIFT;

		txd->cctl |= PL080_CONTROL_DST_INCR;

		if (plchan->runtime_addr)

			txd->srcbus.addr = plchan->runtime_addr;

			txd->src_addr = plchan->runtime_addr;

		else

			txd->srcbus.addr = plchan->cd->addr;

		txd->dstbus.addr = sgl->dma_address;

			txd->src_addr = plchan->cd->addr;

		txd->dst_addr = sgl->dma_address;

		src_buses = plchan->cd->periph_buses;

		dst_buses = pl08x->mem_buses;

	} else {

include/linux/amba/pl08x.h

+2 −2
Original line number Diff line number Diff line
@@ -114,8 +114,8 @@ struct pl08x_txd { 
	struct dma_async_tx_descriptor tx;

	struct list_head node;

	enum dma_data_direction	direction;

	struct pl08x_bus_data srcbus;

	struct pl08x_bus_data dstbus;

	dma_addr_t src_addr;

	dma_addr_t dst_addr;

	size_t len;

	dma_addr_t llis_bus;

	void *llis_va;