diff options
author | Linus Torvalds | 2011-11-04 18:02:25 -0700 |
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committer | Linus Torvalds | 2011-11-04 18:02:25 -0700 |
commit | fba9569924e06da076cb2ad12474bbd82d69f54d (patch) | |
tree | f0b7d9c82f8dd90f0dc757a4c00afc0872fc1484 /include | |
parent | 3d0a8d10cfb4cc3d1877c29a866ee7d8a46aa2fa (diff) | |
parent | 4598fc2c94b68740e0269db03c98a1e7ad5af773 (diff) |
Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (63 commits)
dmaengine: mid_dma: mask_peripheral_interrupt only when dmac is idle
dmaengine/ep93xx_dma: add module.h include
pch_dma: Reduce wasting memory
pch_dma: Fix suspend issue
dma/timberdale: free_irq() on an error path
dma: shdma: transfer based runtime PM
dmaengine: shdma: protect against the IRQ handler
dmaengine i.MX DMA/SDMA: add missing include of linux/module.h
dmaengine: delete redundant chan_id and chancnt initialization in dma drivers
dmaengine/amba-pl08x: Check txd->llis_va before freeing dma_pool
dmaengine/amba-pl08x: Add support for sg len greater than one for slave transfers
serial: sh-sci: don't filter on DMA device, use only channel ID
ARM: SAMSUNG: Remove Samsung specific enum type for dma direction
ASoC: Samsung: Update DMA interface
spi/s3c64xx: Merge dma control code
spi/s3c64xx: Add support DMA engine API
ARM: SAMSUNG: Remove S3C-PL330-DMA driver
ARM: S5P64X0: Use generic DMA PL330 driver
ARM: S5PC100: Use generic DMA PL330 driver
ARM: S5PV210: Use generic DMA PL330 driver
...
Fix up fairly trivial conflicts in
- arch/arm/mach-exynos4/{Kconfig,clock.c}
- arch/arm/mach-s5p64x0/dma.c
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/amba/pl08x.h | 30 | ||||
-rw-r--r-- | include/linux/amba/pl330.h | 6 | ||||
-rw-r--r-- | include/linux/dmaengine.h | 13 | ||||
-rw-r--r-- | include/linux/serial_sci.h | 2 |
4 files changed, 37 insertions, 14 deletions
diff --git a/include/linux/amba/pl08x.h b/include/linux/amba/pl08x.h index e6e28f37d8ec..9eabffbc4e50 100644 --- a/include/linux/amba/pl08x.h +++ b/include/linux/amba/pl08x.h @@ -47,6 +47,9 @@ enum { * @muxval: a number usually used to poke into some mux regiser to * mux in the signal to this channel * @cctl_opt: default options for the channel control register + * @device_fc: Flow Controller Settings for ccfg register. Only valid for slave + * channels. Fill with 'true' if peripheral should be flow controller. Direction + * will be selected at Runtime. * @addr: source/target address in physical memory for this DMA channel, * can be the address of a FIFO register for burst requests for example. * This can be left undefined if the PrimeCell API is used for configuring @@ -65,6 +68,7 @@ struct pl08x_channel_data { int max_signal; u32 muxval; u32 cctl; + bool device_fc; dma_addr_t addr; bool circular_buffer; bool single; @@ -77,13 +81,11 @@ struct pl08x_channel_data { * @addr: current address * @maxwidth: the maximum width of a transfer on this bus * @buswidth: the width of this bus in bytes: 1, 2 or 4 - * @fill_bytes: bytes required to fill to the next bus memory boundary */ struct pl08x_bus_data { dma_addr_t addr; u8 maxwidth; u8 buswidth; - size_t fill_bytes; }; /** @@ -104,17 +106,35 @@ struct pl08x_phy_chan { }; /** + * struct pl08x_sg - structure containing data per sg + * @src_addr: src address of sg + * @dst_addr: dst address of sg + * @len: transfer len in bytes + * @node: node for txd's dsg_list + */ +struct pl08x_sg { + dma_addr_t src_addr; + dma_addr_t dst_addr; + size_t len; + struct list_head node; +}; + +/** * struct pl08x_txd - wrapper for struct dma_async_tx_descriptor + * @tx: async tx descriptor + * @node: node for txd list for channels + * @dsg_list: list of children sg's + * @direction: direction of transfer * @llis_bus: DMA memory address (physical) start for the LLIs * @llis_va: virtual memory address start for the LLIs + * @cctl: control reg values for current txd + * @ccfg: config reg values for current txd */ struct pl08x_txd { struct dma_async_tx_descriptor tx; struct list_head node; + struct list_head dsg_list; enum dma_data_direction direction; - dma_addr_t src_addr; - dma_addr_t dst_addr; - size_t len; dma_addr_t llis_bus; struct pl08x_lli *llis_va; /* Default cctl value for LLIs */ diff --git a/include/linux/amba/pl330.h b/include/linux/amba/pl330.h index cbee7de7dd36..d12f077a6daf 100644 --- a/include/linux/amba/pl330.h +++ b/include/linux/amba/pl330.h @@ -19,12 +19,8 @@ struct dma_pl330_peri { * Peri_Req i/f of the DMAC that is * peripheral could be reached from. */ - u8 peri_id; /* {0, 31} */ + u8 peri_id; /* specific dma id */ enum pl330_reqtype rqtype; - - /* For M->D and D->M Channels */ - int burst_sz; /* in power of 2 */ - dma_addr_t fifo_addr; }; struct dma_pl330_platdata { diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 8fbf40e0713c..ace51af4369f 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -24,8 +24,7 @@ #include <linux/device.h> #include <linux/uio.h> #include <linux/dma-direction.h> - -struct scatterlist; +#include <linux/scatterlist.h> /** * typedef dma_cookie_t - an opaque DMA cookie @@ -519,6 +518,16 @@ static inline int dmaengine_slave_config(struct dma_chan *chan, (unsigned long)config); } +static inline struct dma_async_tx_descriptor *dmaengine_prep_slave_single( + struct dma_chan *chan, void *buf, size_t len, + enum dma_data_direction dir, unsigned long flags) +{ + struct scatterlist sg; + sg_init_one(&sg, buf, len); + + return chan->device->device_prep_slave_sg(chan, &sg, 1, dir, flags); +} + static inline int dmaengine_terminate_all(struct dma_chan *chan) { return dmaengine_device_control(chan, DMA_TERMINATE_ALL, 0); diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h index 8bffe9ae2ca0..0efa1f10bc2b 100644 --- a/include/linux/serial_sci.h +++ b/include/linux/serial_sci.h @@ -131,8 +131,6 @@ struct plat_sci_port { struct plat_sci_port_ops *ops; - struct device *dma_dev; - unsigned int dma_slave_tx; unsigned int dma_slave_rx; }; |