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Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma

Browse Source 
Pull slave-dma updates from Vinod Koul:
 "Some notable changes are:
   - new driver for AMBA AXI NBPF by Guennadi
   - new driver for sun6i controller by Maxime
   - pl330 drivers fixes from Lar's
   - sh-dma updates and fixes from Laurent, Geert and Kuninori
   - Documentation updates from Geert
   - drivers fixes and updates spread over dw, edma, freescale, mpc512x
     etc.."

* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (72 commits)
  dmaengine: sun6i: depends on RESET_CONTROLLER
  dma: at_hdmac: fix invalid remaining bytes detection
  dmaengine: nbpfaxi: don't build this driver where it cannot be used
  dmaengine: nbpf_error_get_channel() can be static
  dma: pl08x: Use correct specifier for size_t values
  dmaengine: Remove the context argument to the prep_dma_cyclic operation
  dmaengine: nbpfaxi: convert to tasklet
  dmaengine: nbpfaxi: fix a theoretical race
  dmaengine: add a driver for AMBA AXI NBPF DMAC IP cores
  dmaengine: add device tree binding documentation for the nbpfaxi driver
  dmaengine: edma: Do not register second device when booted with DT
  dmaengine: edma: Do not change the error code returned from edma_alloc_slot
  dmaengine: rcar-dmac: Add device tree bindings documentation
  dmaengine: shdma: Allocate cyclic sg list dynamically
  dmaengine: shdma: Make channel filter ignore unrelated devices
  dmaengine: sh: Rework Kconfig and Makefile
  dmaengine: sun6i: Fix memory leaks
  dmaengine: sun6i: Free the interrupt before killing the tasklet
  dmaengine: sun6i: Remove switch statement from buswidth convertion routine
  dmaengine: of: kconfig: select DMA_ENGINE when DMA_OF is selected
  ...
This commit is contained in:
Linus Torvalds
2014-08-11 07:14:01 -07:00
parent 5fd41f2a10 a0bbe990c1
commit c7a19c795b
59 changed files with 4031 additions and 984 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
+1
View File
@@ -47,6 +47,7 @@ The full ID of peripheral types can be found below.
20 ASRC
21 ESAI
22 SSI Dual FIFO (needs firmware ver >= 2)
23 Shared ASRC
The third cell specifies the transfer priority as below.
Documentation/devicetree/bindings/dma/mpc512x-dma.txt
+29
View File
@@ -0,0 +1,29 @@
* Freescale MPC512x and MPC8308 DMA Controller
The DMA controller in Freescale MPC512x and MPC8308 SoCs can move
blocks of memory contents between memory and peripherals or
from memory to memory.
Refer to "Generic DMA Controller and DMA request bindings" in
the dma/dma.txt file for a more detailed description of binding.
Required properties:
- compatible: should be "fsl,mpc5121-dma" or "fsl,mpc8308-dma";
- reg: should contain the DMA controller registers location and length;
- interrupt for the DMA controller: syntax of interrupt client node
is described in interrupt-controller/interrupts.txt file.
- #dma-cells: the length of the DMA specifier, must be <1>.
Each channel of this DMA controller has a peripheral request line,
the assignment is fixed in hardware. This one cell
in dmas property of a client device represents the channel number.
Example:
dma0: dma@14000 {
compatible = "fsl,mpc5121-dma";
reg = <0x14000 0x1800>;
interrupts = <65 0x8>;
#dma-cells = <1>;
};
DMA clients must use the format described in dma/dma.txt file.
Documentation/devicetree/bindings/dma/nbpfaxi.txt
+61
View File
@@ -0,0 +1,61 @@
* Renesas "Type-AXI" NBPFAXI* DMA controllers
* DMA controller
Required properties
- compatible: must be one of
"renesas,nbpfaxi64dmac1b4"
"renesas,nbpfaxi64dmac1b8"
"renesas,nbpfaxi64dmac1b16"
"renesas,nbpfaxi64dmac4b4"
"renesas,nbpfaxi64dmac4b8"
"renesas,nbpfaxi64dmac4b16"
"renesas,nbpfaxi64dmac8b4"
"renesas,nbpfaxi64dmac8b8"
"renesas,nbpfaxi64dmac8b16"
- #dma-cells: must be 2: the first integer is a terminal number, to which this
slave is connected, the second one is flags. Flags is a bitmask
with the following bits defined:
#define NBPF_SLAVE_RQ_HIGH 1
#define NBPF_SLAVE_RQ_LOW 2
#define NBPF_SLAVE_RQ_LEVEL 4
Optional properties:
You can use dma-channels and dma-requests as described in dma.txt, although they
won't be used, this information is derived from the compatibility string.
Example:
dma: dma-controller@48000000 {
compatible = "renesas,nbpfaxi64dmac8b4";
reg = <0x48000000 0x400>;
interrupts = <0 12 0x4
0 13 0x4
0 14 0x4
0 15 0x4
0 16 0x4
0 17 0x4
0 18 0x4
0 19 0x4>;
#dma-cells = <2>;
dma-channels = <8>;
dma-requests = <8>;
};
* DMA client
Required properties:
dmas and dma-names are required, as described in dma.txt.
Example:
#include <dt-bindings/dma/nbpfaxi.h>
...
dmas = <&dma 0 (NBPF_SLAVE_RQ_HIGH | NBPF_SLAVE_RQ_LEVEL)
&dma 1 (NBPF_SLAVE_RQ_HIGH | NBPF_SLAVE_RQ_LEVEL)>;
dma-names = "rx", "tx";
Documentation/devicetree/bindings/dma/rcar-audmapp.txt
+29
View File
@@ -0,0 +1,29 @@
* R-Car Audio DMAC peri peri Device Tree bindings
Required properties:
- compatible: should be "renesas,rcar-audmapp"
- #dma-cells: should be <1>, see "dmas" property below
Example:
audmapp: audio-dma-pp@0xec740000 {
compatible = "renesas,rcar-audmapp";
#dma-cells = <1>;
reg = <0 0xec740000 0 0x200>;
};
* DMA client
Required properties:
- dmas: a list of <[DMA multiplexer phandle] [SRS/DRS value]> pairs,
where SRS/DRS values are fixed handles, specified in the SoC
manual as the value that would be written into the PDMACHCR.
- dma-names: a list of DMA channel names, one per "dmas" entry
Example:
dmas = <&audmapp 0x2d00
&audmapp 0x3700>;
dma-names = "src0_ssiu0",
"dvc0_ssiu0";
Documentation/devicetree/bindings/dma/renesas,rcar-dmac.txt
+98
View File
@@ -0,0 +1,98 @@
* Renesas R-Car DMA Controller Device Tree bindings
Renesas R-Car Generation 2 SoCs have have multiple multi-channel DMA
controller instances named DMAC capable of serving multiple clients. Channels
can be dedicated to specific clients or shared between a large number of
clients.
DMA clients are connected to the DMAC ports referenced by an 8-bit identifier
called MID/RID.
Each DMA client is connected to one dedicated port of the DMAC, identified by
an 8-bit port number called the MID/RID. A DMA controller can thus serve up to
256 clients in total. When the number of hardware channels is lower than the
number of clients to be served, channels must be shared between multiple DMA
clients. The association of DMA clients to DMAC channels is fully dynamic and
not described in these device tree bindings.
Required Properties:
- compatible: must contain "renesas,rcar-dmac"
- reg: base address and length of the registers block for the DMAC
- interrupts: interrupt specifiers for the DMAC, one for each entry in
interrupt-names.
- interrupt-names: one entry per channel, named "ch%u", where %u is the
channel number ranging from zero to the number of channels minus one.
- clock-names: "fck" for the functional clock
- clocks: a list of phandle + clock-specifier pairs, one for each entry
in clock-names.
- clock-names: must contain "fck" for the functional clock.
- #dma-cells: must be <1>, the cell specifies the MID/RID of the DMAC port
connected to the DMA client
- dma-channels: number of DMA channels
Example: R8A7790 (R-Car H2) SYS-DMACs
dmac0: dma-controller@e6700000 {
compatible = "renesas,rcar-dmac";
reg = <0 0xe6700000 0 0x20000>;
interrupts = <0 197 IRQ_TYPE_LEVEL_HIGH
0 200 IRQ_TYPE_LEVEL_HIGH
0 201 IRQ_TYPE_LEVEL_HIGH
0 202 IRQ_TYPE_LEVEL_HIGH
0 203 IRQ_TYPE_LEVEL_HIGH
0 204 IRQ_TYPE_LEVEL_HIGH
0 205 IRQ_TYPE_LEVEL_HIGH
0 206 IRQ_TYPE_LEVEL_HIGH
0 207 IRQ_TYPE_LEVEL_HIGH
0 208 IRQ_TYPE_LEVEL_HIGH
0 209 IRQ_TYPE_LEVEL_HIGH
0 210 IRQ_TYPE_LEVEL_HIGH
0 211 IRQ_TYPE_LEVEL_HIGH
0 212 IRQ_TYPE_LEVEL_HIGH
0 213 IRQ_TYPE_LEVEL_HIGH
0 214 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "error",
"ch0", "ch1", "ch2", "ch3",
"ch4", "ch5", "ch6", "ch7",
"ch8", "ch9", "ch10", "ch11",
"ch12", "ch13", "ch14";
clocks = <&mstp2_clks R8A7790_CLK_SYS_DMAC0>;
clock-names = "fck";
#dma-cells = <1>;
dma-channels = <15>;
};
dmac1: dma-controller@e6720000 {
compatible = "renesas,rcar-dmac";
reg = <0 0xe6720000 0 0x20000>;
interrupts = <0 220 IRQ_TYPE_LEVEL_HIGH
0 216 IRQ_TYPE_LEVEL_HIGH
0 217 IRQ_TYPE_LEVEL_HIGH
0 218 IRQ_TYPE_LEVEL_HIGH
0 219 IRQ_TYPE_LEVEL_HIGH
0 308 IRQ_TYPE_LEVEL_HIGH
0 309 IRQ_TYPE_LEVEL_HIGH
0 310 IRQ_TYPE_LEVEL_HIGH
0 311 IRQ_TYPE_LEVEL_HIGH
0 312 IRQ_TYPE_LEVEL_HIGH
0 313 IRQ_TYPE_LEVEL_HIGH
0 314 IRQ_TYPE_LEVEL_HIGH
0 315 IRQ_TYPE_LEVEL_HIGH
0 316 IRQ_TYPE_LEVEL_HIGH
0 317 IRQ_TYPE_LEVEL_HIGH
0 318 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "error",
"ch0", "ch1", "ch2", "ch3",
"ch4", "ch5", "ch6", "ch7",
"ch8", "ch9", "ch10", "ch11",
"ch12", "ch13", "ch14";
clocks = <&mstp2_clks R8A7790_CLK_SYS_DMAC1>;
clock-names = "fck";
#dma-cells = <1>;
dma-channels = <15>;
};
Documentation/devicetree/bindings/dma/ste-dma40.txt
+72 -2
View File
@@ -35,9 +35,11 @@ Required properties:
Each dmas request consists of 4 cells:
1. A phandle pointing to the DMA controller
2. Device Type
2. Device signal number, the signal line for single and burst requests
connected from the device to the DMA40 engine
3. The DMA request line number (only when 'use fixed channel' is set)
4. A 32bit mask specifying; mode, direction and endianness [NB: This list will grow]
4. A 32bit mask specifying; mode, direction and endianness
[NB: This list will grow]
0x00000001: Mode:
Logical channel when unset
Physical channel when set
@@ -54,6 +56,74 @@ Each dmas request consists of 4 cells:
Normal priority when unset
High priority when set
Existing signal numbers for the DB8500 ASIC. Unless specified, the signals are
bidirectional, i.e. the same for RX and TX operations:
0: SPI controller 0
1: SD/MMC controller 0 (unused)
2: SD/MMC controller 1 (unused)
3: SD/MMC controller 2 (unused)
4: I2C port 1
5: I2C port 3
6: I2C port 2
7: I2C port 4
8: Synchronous Serial Port SSP0
9: Synchronous Serial Port SSP1
10: Multi-Channel Display Engine MCDE RX
11: UART port 2
12: UART port 1
13: UART port 0
14: Multirate Serial Port MSP2
15: I2C port 0
16: USB OTG in/out endpoints 7 & 15
17: USB OTG in/out endpoints 6 & 14
18: USB OTG in/out endpoints 5 & 13
19: USB OTG in/out endpoints 4 & 12
20: SLIMbus or HSI channel 0
21: SLIMbus or HSI channel 1
22: SLIMbus or HSI channel 2
23: SLIMbus or HSI channel 3
24: Multimedia DSP SXA0
25: Multimedia DSP SXA1
26: Multimedia DSP SXA2
27: Multimedia DSP SXA3
28: SD/MM controller 2
29: SD/MM controller 0
30: MSP port 1 on DB8500 v1, MSP port 3 on DB8500 v2
31: MSP port 0 or SLIMbus channel 0
32: SD/MM controller 1
33: SPI controller 2
34: i2c3 RX2 TX2
35: SPI controller 1
36: USB OTG in/out endpoints 3 & 11
37: USB OTG in/out endpoints 2 & 10
38: USB OTG in/out endpoints 1 & 9
39: USB OTG in/out endpoints 8
40: SPI controller 3
41: SD/MM controller 3
42: SD/MM controller 4
43: SD/MM controller 5
44: Multimedia DSP SXA4
45: Multimedia DSP SXA5
46: SLIMbus channel 8 or Multimedia DSP SXA6
47: SLIMbus channel 9 or Multimedia DSP SXA7
48: Crypto Accelerator 1
49: Crypto Accelerator 1 TX or Hash Accelerator 1 TX
50: Hash Accelerator 1 TX
51: memcpy TX (to be used by the DMA driver for memcpy operations)
52: SLIMbus or HSI channel 4
53: SLIMbus or HSI channel 5
54: SLIMbus or HSI channel 6
55: SLIMbus or HSI channel 7
56: memcpy (to be used by the DMA driver for memcpy operations)
57: memcpy (to be used by the DMA driver for memcpy operations)
58: memcpy (to be used by the DMA driver for memcpy operations)
59: memcpy (to be used by the DMA driver for memcpy operations)
60: memcpy (to be used by the DMA driver for memcpy operations)
61: Crypto Accelerator 0
62: Crypto Accelerator 0 TX or Hash Accelerator 0 TX
63: Hash Accelerator 0 TX
Example:
uart@80120000 {
Documentation/devicetree/bindings/dma/sun6i-dma.txt
+45
View File
@@ -0,0 +1,45 @@
Allwinner A31 DMA Controller
This driver follows the generic DMA bindings defined in dma.txt.
Required properties:
- compatible: Must be "allwinner,sun6i-a31-dma"
- reg: Should contain the registers base address and length
- interrupts: Should contain a reference to the interrupt used by this device
- clocks: Should contain a reference to the parent AHB clock
- resets: Should contain a reference to the reset controller asserting
this device in reset
- #dma-cells : Should be 1, a single cell holding a line request number
Example:
dma: dma-controller@01c02000 {
compatible = "allwinner,sun6i-a31-dma";
reg = <0x01c02000 0x1000>;
interrupts = <0 50 4>;
clocks = <&ahb1_gates 6>;
resets = <&ahb1_rst 6>;
#dma-cells = <1>;
};
Clients:
DMA clients connected to the A31 DMA controller must use the format
described in the dma.txt file, using a two-cell specifier for each
channel: a phandle plus one integer cells.
The two cells in order are:
1. A phandle pointing to the DMA controller.
2. The port ID as specified in the datasheet
Example:
spi2: spi@01c6a000 {
compatible = "allwinner,sun6i-a31-spi";
reg = <0x01c6a000 0x1000>;
interrupts = <0 67 4>;
clocks = <&ahb1_gates 22>, <&spi2_clk>;
clock-names = "ahb", "mod";
dmas = <&dma 25>, <&dma 25>;
dma-names = "rx", "tx";
resets = <&ahb1_rst 22>;
};
Documentation/dmaengine.txt
+9 -8
View File
@@ -84,31 +84,32 @@ The slave DMA usage consists of following steps:
the given transaction.
Interface:
struct dma_async_tx_descriptor *(*chan->device->device_prep_slave_sg)(
struct dma_async_tx_descriptor *dmaengine_prep_slave_sg(
struct dma_chan *chan, struct scatterlist *sgl,
unsigned int sg_len, enum dma_data_direction direction,
unsigned long flags);
struct dma_async_tx_descriptor *(*chan->device->device_prep_dma_cyclic)(
struct dma_async_tx_descriptor *dmaengine_prep_dma_cyclic(
struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len,
size_t period_len, enum dma_data_direction direction);
struct dma_async_tx_descriptor *(*device_prep_interleaved_dma)(
struct dma_async_tx_descriptor *dmaengine_prep_interleaved_dma(
struct dma_chan *chan, struct dma_interleaved_template *xt,
unsigned long flags);
The peripheral driver is expected to have mapped the scatterlist for
the DMA operation prior to calling device_prep_slave_sg, and must
keep the scatterlist mapped until the DMA operation has completed.
The scatterlist must be mapped using the DMA struct device. So,
normal setup should look like this:
The scatterlist must be mapped using the DMA struct device.
If a mapping needs to be synchronized later, dma_sync_*_for_*() must be
called using the DMA struct device, too.
So, normal setup should look like this:
nr_sg = dma_map_sg(chan->device->dev, sgl, sg_len);
if (nr_sg == 0)
/* error */
desc = chan->device->device_prep_slave_sg(chan, sgl, nr_sg,
direction, flags);
desc = dmaengine_prep_slave_sg(chan, sgl, nr_sg, direction, flags);
Once a descriptor has been obtained, the callback information can be
added and the descriptor must then be submitted. Some DMA engine
@@ -188,7 +189,7 @@ Further APIs:
description of this API.
This can be used in conjunction with dma_async_is_complete() and
the cookie returned from 'descriptor->submit()' to check for
the cookie returned from dmaengine_submit() to check for
completion of a specific DMA transaction.
Note:
arch/arm/common/edma.c
+30 -1
View File
@@ -1414,6 +1414,34 @@ void edma_clear_event(unsigned channel)
}
EXPORT_SYMBOL(edma_clear_event);
/*
* edma_assign_channel_eventq - move given channel to desired eventq
* Arguments:
* channel - channel number
* eventq_no - queue to move the channel
*
* Can be used to move a channel to a selected event queue.
*/
void edma_assign_channel_eventq(unsigned channel, enum dma_event_q eventq_no)
{
unsigned ctlr;
ctlr = EDMA_CTLR(channel);
channel = EDMA_CHAN_SLOT(channel);
if (channel >= edma_cc[ctlr]->num_channels)
return;
/* default to low priority queue */
if (eventq_no == EVENTQ_DEFAULT)
eventq_no = edma_cc[ctlr]->default_queue;
if (eventq_no >= edma_cc[ctlr]->num_tc)
return;
map_dmach_queue(ctlr, channel, eventq_no);
}
EXPORT_SYMBOL(edma_assign_channel_eventq);
static int edma_setup_from_hw(struct device *dev, struct edma_soc_info *pdata,
struct edma *edma_cc)
{
@@ -1470,7 +1498,8 @@ static int edma_setup_from_hw(struct device *dev, struct edma_soc_info *pdata,
queue_priority_map[i][1] = -1;
pdata->queue_priority_mapping = queue_priority_map;
pdata->default_queue = 0;
/* Default queue has the lowest priority */
pdata->default_queue = i - 1;
return 0;
}
arch/powerpc/boot/dts/mpc5121.dtsi
+1
View File
@@ -498,6 +498,7 @@
compatible = "fsl,mpc5121-dma";
reg = <0x14000 0x1800>;
interrupts = <65 0x8>;
#dma-cells = <1>;
};
};
arch/sh/drivers/dma/dma-sh.c
+1 -1
View File
@@ -25,7 +25,7 @@
* Define the default configuration for dual address memory-memory transfer.
* The 0x400 value represents auto-request, external->external.
*/
#define RS_DUAL (DM_INC | SM_INC | 0x400 | TS_INDEX2VAL(XMIT_SZ_32BIT))
#define RS_DUAL (DM_INC | SM_INC | RS_AUTO | TS_INDEX2VAL(XMIT_SZ_32BIT))
static unsigned long dma_find_base(unsigned int chan)
{
arch/sh/include/asm/dma-register.h
+19 -17
View File
@@ -13,17 +13,17 @@
#ifndef DMA_REGISTER_H
#define DMA_REGISTER_H
/* DMA register */
#define SAR 0x00
#define DAR 0x04
#define TCR 0x08
#define CHCR 0x0C
#define DMAOR 0x40
/* DMA registers */
#define SAR 0x00 /* Source Address Register */
#define DAR 0x04 /* Destination Address Register */
#define TCR 0x08 /* Transfer Count Register */
#define CHCR 0x0C /* Channel Control Register */
#define DMAOR 0x40 /* DMA Operation Register */
/* DMAOR definitions */
#define DMAOR_AE 0x00000004
#define DMAOR_AE 0x00000004 /* Address Error Flag */
#define DMAOR_NMIF 0x00000002
#define DMAOR_DME 0x00000001
#define DMAOR_DME 0x00000001 /* DMA Master Enable */
/* Definitions for the SuperH DMAC */
#define REQ_L 0x00000000
@@ -34,18 +34,20 @@
#define ACK_W 0x00020000
#define ACK_H 0x00000000
#define ACK_L 0x00010000
#define DM_INC 0x00004000
#define DM_DEC 0x00008000
#define DM_FIX 0x0000c000
#define SM_INC 0x00001000
#define SM_DEC 0x00002000
#define SM_FIX 0x00003000
#define DM_INC 0x00004000 /* Destination addresses are incremented */
#define DM_DEC 0x00008000 /* Destination addresses are decremented */
#define DM_FIX 0x0000c000 /* Destination address is fixed */
#define SM_INC 0x00001000 /* Source addresses are incremented */
#define SM_DEC 0x00002000 /* Source addresses are decremented */
#define SM_FIX 0x00003000 /* Source address is fixed */
#define RS_IN 0x00000200
#define RS_OUT 0x00000300
#define RS_AUTO 0x00000400 /* Auto Request */
#define RS_ERS 0x00000800 /* DMA extended resource selector */
#define TS_BLK 0x00000040
#define TM_BUR 0x00000020
#define CHCR_DE 0x00000001
#define CHCR_TE 0x00000002
#define CHCR_IE 0x00000004
#define CHCR_DE 0x00000001 /* DMA Enable */
#define CHCR_TE 0x00000002 /* Transfer End Flag */
#define CHCR_IE 0x00000004 /* Interrupt Enable */
#endif
arch/sh/kernel/cpu/sh4a/setup-sh7722.c
+12 -12
View File
@@ -30,62 +30,62 @@ static const struct sh_dmae_slave_config sh7722_dmae_slaves[] = {
{
.slave_id = SHDMA_SLAVE_SCIF0_TX,
.addr = 0xffe0000c,
.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
.chcr = DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x21,
}, {
.slave_id = SHDMA_SLAVE_SCIF0_RX,
.addr = 0xffe00014,
.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
.chcr = DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x22,
}, {
.slave_id = SHDMA_SLAVE_SCIF1_TX,
.addr = 0xffe1000c,
.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
.chcr = DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x25,
}, {
.slave_id = SHDMA_SLAVE_SCIF1_RX,
.addr = 0xffe10014,
.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
.chcr = DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x26,
}, {
.slave_id = SHDMA_SLAVE_SCIF2_TX,
.addr = 0xffe2000c,
.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
.chcr = DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x29,
}, {
.slave_id = SHDMA_SLAVE_SCIF2_RX,
.addr = 0xffe20014,
.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
.chcr = DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x2a,
}, {
.slave_id = SHDMA_SLAVE_SIUA_TX,
.addr = 0xa454c098,
.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_32BIT),
.chcr = DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL(XMIT_SZ_32BIT),
.mid_rid = 0xb1,
}, {
.slave_id = SHDMA_SLAVE_SIUA_RX,
.addr = 0xa454c090,
.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_32BIT),
.chcr = DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL(XMIT_SZ_32BIT),
.mid_rid = 0xb2,
}, {
.slave_id = SHDMA_SLAVE_SIUB_TX,
.addr = 0xa454c09c,
.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_32BIT),
.chcr = DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL(XMIT_SZ_32BIT),
.mid_rid = 0xb5,
}, {
.slave_id = SHDMA_SLAVE_SIUB_RX,
.addr = 0xa454c094,
.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_32BIT),
.chcr = DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL(XMIT_SZ_32BIT),
.mid_rid = 0xb6,
}, {
.slave_id = SHDMA_SLAVE_SDHI0_TX,
.addr = 0x04ce0030,
.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_16BIT),
.chcr = DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL(XMIT_SZ_16BIT),
.mid_rid = 0xc1,
}, {
.slave_id = SHDMA_SLAVE_SDHI0_RX,
.addr = 0x04ce0030,
.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_16BIT),
.chcr = DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL(XMIT_SZ_16BIT),
.mid_rid = 0xc2,
},
};
arch/sh/kernel/cpu/sh4a/setup-sh7724.c
+24 -24
View File
@@ -36,122 +36,122 @@ static const struct sh_dmae_slave_config sh7724_dmae_slaves[] = {
{
.slave_id = SHDMA_SLAVE_SCIF0_TX,
.addr = 0xffe0000c,
.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
.chcr = DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x21,
}, {
.slave_id = SHDMA_SLAVE_SCIF0_RX,
.addr = 0xffe00014,
.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
.chcr = DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x22,
}, {
.slave_id = SHDMA_SLAVE_SCIF1_TX,
.addr = 0xffe1000c,
.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
.chcr = DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x25,
}, {
.slave_id = SHDMA_SLAVE_SCIF1_RX,
.addr = 0xffe10014,
.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
.chcr = DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x26,
}, {
.slave_id = SHDMA_SLAVE_SCIF2_TX,
.addr = 0xffe2000c,
.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
.chcr = DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x29,
}, {
.slave_id = SHDMA_SLAVE_SCIF2_RX,
.addr = 0xffe20014,
.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
.chcr = DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x2a,
}, {
.slave_id = SHDMA_SLAVE_SCIF3_TX,
.addr = 0xa4e30020,
.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
.chcr = DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x2d,
}, {
.slave_id = SHDMA_SLAVE_SCIF3_RX,
.addr = 0xa4e30024,
.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
.chcr = DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x2e,
}, {
.slave_id = SHDMA_SLAVE_SCIF4_TX,
.addr = 0xa4e40020,
.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
.chcr = DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x31,
}, {
.slave_id = SHDMA_SLAVE_SCIF4_RX,
.addr = 0xa4e40024,
.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
.chcr = DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x32,
}, {
.slave_id = SHDMA_SLAVE_SCIF5_TX,
.addr = 0xa4e50020,
.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
.chcr = DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x35,
}, {
.slave_id = SHDMA_SLAVE_SCIF5_RX,
.addr = 0xa4e50024,
.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
.chcr = DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x36,
}, {
.slave_id = SHDMA_SLAVE_USB0D0_TX,
.addr = 0xA4D80100,
.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_32BIT),
.chcr = DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL(XMIT_SZ_32BIT),
.mid_rid = 0x73,
}, {
.slave_id = SHDMA_SLAVE_USB0D0_RX,
.addr = 0xA4D80100,
.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_32BIT),
.chcr = DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL(XMIT_SZ_32BIT),
.mid_rid = 0x73,
}, {
.slave_id = SHDMA_SLAVE_USB0D1_TX,
.addr = 0xA4D80120,
.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_32BIT),
.chcr = DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL(XMIT_SZ_32BIT),
.mid_rid = 0x77,
}, {
.slave_id = SHDMA_SLAVE_USB0D1_RX,
.addr = 0xA4D80120,
.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_32BIT),
.chcr = DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL(XMIT_SZ_32BIT),
.mid_rid = 0x77,
}, {
.slave_id = SHDMA_SLAVE_USB1D0_TX,
.addr = 0xA4D90100,
.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_32BIT),
.chcr = DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL(XMIT_SZ_32BIT),
.mid_rid = 0xab,
}, {
.slave_id = SHDMA_SLAVE_USB1D0_RX,
.addr = 0xA4D90100,
.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_32BIT),
.chcr = DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL(XMIT_SZ_32BIT),
.mid_rid = 0xab,
}, {
.slave_id = SHDMA_SLAVE_USB1D1_TX,
.addr = 0xA4D90120,
.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_32BIT),
.chcr = DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL(XMIT_SZ_32BIT),
.mid_rid = 0xaf,
}, {
.slave_id = SHDMA_SLAVE_USB1D1_RX,
.addr = 0xA4D90120,
.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_32BIT),
.chcr = DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL(XMIT_SZ_32BIT),
.mid_rid = 0xaf,
}, {
.slave_id = SHDMA_SLAVE_SDHI0_TX,
.addr = 0x04ce0030,
.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_16BIT),
.chcr = DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL(XMIT_SZ_16BIT),
.mid_rid = 0xc1,
}, {
.slave_id = SHDMA_SLAVE_SDHI0_RX,
.addr = 0x04ce0030,
.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_16BIT),
.chcr = DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL(XMIT_SZ_16BIT),
.mid_rid = 0xc2,
}, {
.slave_id = SHDMA_SLAVE_SDHI1_TX,
.addr = 0x04cf0030,
.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_16BIT),
.chcr = DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL(XMIT_SZ_16BIT),
.mid_rid = 0xc9,
}, {
.slave_id = SHDMA_SLAVE_SDHI1_RX,
.addr = 0x04cf0030,
.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_16BIT),
.chcr = DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL(XMIT_SZ_16BIT),
.mid_rid = 0xca,
},
};
arch/sh/kernel/cpu/sh4a/setup-sh7757.c
+32 -32
View File
@@ -123,28 +123,28 @@ static const struct sh_dmae_slave_config sh7757_dmae0_slaves[] = {
{
.slave_id = SHDMA_SLAVE_SDHI_TX,
.addr = 0x1fe50030,
.chcr = SM_INC | 0x800 | 0x40000000 |
.chcr = SM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_16BIT),
.mid_rid = 0xc5,
},
{
.slave_id = SHDMA_SLAVE_SDHI_RX,
.addr = 0x1fe50030,
.chcr = DM_INC | 0x800 | 0x40000000 |
.chcr = DM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_16BIT),
.mid_rid = 0xc6,
},
{
.slave_id = SHDMA_SLAVE_MMCIF_TX,
.addr = 0x1fcb0034,
.chcr = SM_INC | 0x800 | 0x40000000 |
.chcr = SM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_32BIT),
.mid_rid = 0xd3,
},
{
.slave_id = SHDMA_SLAVE_MMCIF_RX,
.addr = 0x1fcb0034,
.chcr = DM_INC | 0x800 | 0x40000000 |
.chcr = DM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_32BIT),
.mid_rid = 0xd7,
},
@@ -154,56 +154,56 @@ static const struct sh_dmae_slave_config sh7757_dmae1_slaves[] = {
{
.slave_id = SHDMA_SLAVE_SCIF2_TX,
.addr = 0x1f4b000c,
.chcr = SM_INC | 0x800 | 0x40000000 |
.chcr = SM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x21,
},
{
.slave_id = SHDMA_SLAVE_SCIF2_RX,
.addr = 0x1f4b0014,
.chcr = DM_INC | 0x800 | 0x40000000 |
.chcr = DM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x22,
},
{
.slave_id = SHDMA_SLAVE_SCIF3_TX,
.addr = 0x1f4c000c,
.chcr = SM_INC | 0x800 | 0x40000000 |
.chcr = SM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x29,
},
{
.slave_id = SHDMA_SLAVE_SCIF3_RX,
.addr = 0x1f4c0014,
.chcr = DM_INC | 0x800 | 0x40000000 |
.chcr = DM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x2a,
},
{
.slave_id = SHDMA_SLAVE_SCIF4_TX,
.addr = 0x1f4d000c,
.chcr = SM_INC | 0x800 | 0x40000000 |
.chcr = SM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x41,
},
{
.slave_id = SHDMA_SLAVE_SCIF4_RX,
.addr = 0x1f4d0014,
.chcr = DM_INC | 0x800 | 0x40000000 |
.chcr = DM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x42,
},
{
.slave_id = SHDMA_SLAVE_RSPI_TX,
.addr = 0xfe480004,
.chcr = SM_INC | 0x800 | 0x40000000 |
.chcr = SM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_16BIT),
.mid_rid = 0xc1,
},
{
.slave_id = SHDMA_SLAVE_RSPI_RX,
.addr = 0xfe480004,
.chcr = DM_INC | 0x800 | 0x40000000 |
.chcr = DM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_16BIT),
.mid_rid = 0xc2,
},
@@ -213,70 +213,70 @@ static const struct sh_dmae_slave_config sh7757_dmae2_slaves[] = {
{
.slave_id = SHDMA_SLAVE_RIIC0_TX,
.addr = 0x1e500012,
.chcr = SM_INC | 0x800 | 0x40000000 |
.chcr = SM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x21,
},
{
.slave_id = SHDMA_SLAVE_RIIC0_RX,
.addr = 0x1e500013,
.chcr = DM_INC | 0x800 | 0x40000000 |
.chcr = DM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x22,
},
{
.slave_id = SHDMA_SLAVE_RIIC1_TX,
.addr = 0x1e510012,
.chcr = SM_INC | 0x800 | 0x40000000 |
.chcr = SM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x29,
},
{
.slave_id = SHDMA_SLAVE_RIIC1_RX,
.addr = 0x1e510013,
.chcr = DM_INC | 0x800 | 0x40000000 |
.chcr = DM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x2a,
},
{
.slave_id = SHDMA_SLAVE_RIIC2_TX,
.addr = 0x1e520012,
.chcr = SM_INC | 0x800 | 0x40000000 |
.chcr = SM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0xa1,
},
{
.slave_id = SHDMA_SLAVE_RIIC2_RX,
.addr = 0x1e520013,
.chcr = DM_INC | 0x800 | 0x40000000 |
.chcr = DM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0xa2,
},
{
.slave_id = SHDMA_SLAVE_RIIC3_TX,
.addr = 0x1e530012,
.chcr = SM_INC | 0x800 | 0x40000000 |
.chcr = SM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0xa9,
},
{
.slave_id = SHDMA_SLAVE_RIIC3_RX,
.addr = 0x1e530013,
.chcr = DM_INC | 0x800 | 0x40000000 |
.chcr = DM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0xaf,
},
{
.slave_id = SHDMA_SLAVE_RIIC4_TX,
.addr = 0x1e540012,
.chcr = SM_INC | 0x800 | 0x40000000 |
.chcr = SM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0xc5,
},
{
.slave_id = SHDMA_SLAVE_RIIC4_RX,
.addr = 0x1e540013,
.chcr = DM_INC | 0x800 | 0x40000000 |
.chcr = DM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0xc6,
},
@@ -286,70 +286,70 @@ static const struct sh_dmae_slave_config sh7757_dmae3_slaves[] = {
{
.slave_id = SHDMA_SLAVE_RIIC5_TX,
.addr = 0x1e550012,
.chcr = SM_INC | 0x800 | 0x40000000 |
.chcr = SM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x21,
},
{
.slave_id = SHDMA_SLAVE_RIIC5_RX,
.addr = 0x1e550013,
.chcr = DM_INC | 0x800 | 0x40000000 |
.chcr = DM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x22,
},
{
.slave_id = SHDMA_SLAVE_RIIC6_TX,
.addr = 0x1e560012,
.chcr = SM_INC | 0x800 | 0x40000000 |
.chcr = SM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x29,
},
{
.slave_id = SHDMA_SLAVE_RIIC6_RX,
.addr = 0x1e560013,
.chcr = DM_INC | 0x800 | 0x40000000 |
.chcr = DM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x2a,
},
{
.slave_id = SHDMA_SLAVE_RIIC7_TX,
.addr = 0x1e570012,
.chcr = SM_INC | 0x800 | 0x40000000 |
.chcr = SM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x41,
},
{
.slave_id = SHDMA_SLAVE_RIIC7_RX,
.addr = 0x1e570013,
.chcr = DM_INC | 0x800 | 0x40000000 |
.chcr = DM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x42,
},
{
.slave_id = SHDMA_SLAVE_RIIC8_TX,
.addr = 0x1e580012,
.chcr = SM_INC | 0x800 | 0x40000000 |
.chcr = SM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x45,
},
{
.slave_id = SHDMA_SLAVE_RIIC8_RX,
.addr = 0x1e580013,
.chcr = DM_INC | 0x800 | 0x40000000 |
.chcr = DM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x46,
},
{
.slave_id = SHDMA_SLAVE_RIIC9_TX,
.addr = 0x1e590012,
.chcr = SM_INC | 0x800 | 0x40000000 |
.chcr = SM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x51,
},
{
.slave_id = SHDMA_SLAVE_RIIC9_RX,
.addr = 0x1e590013,
.chcr = DM_INC | 0x800 | 0x40000000 |
.chcr = DM_INC | RS_ERS | 0x40000000 |
TS_INDEX2VAL(XMIT_SZ_8BIT),
.mid_rid = 0x52,
},
drivers/dma/Kconfig
+17
View File
@@ -393,6 +393,22 @@ config XILINX_VDMA
channels, Memory Mapped to Stream (MM2S) and Stream to
Memory Mapped (S2MM) for the data transfers.
config DMA_SUN6I
tristate "Allwinner A31 SoCs DMA support"
depends on MACH_SUN6I || COMPILE_TEST
depends on RESET_CONTROLLER
select DMA_ENGINE
select DMA_VIRTUAL_CHANNELS
help
Support for the DMA engine for Allwinner A31 SoCs.
config NBPFAXI_DMA
tristate "Renesas Type-AXI NBPF DMA support"
select DMA_ENGINE
depends on ARM || COMPILE_TEST
help
Support for "Type-AXI" NBPF DMA IPs from Renesas
config DMA_ENGINE
bool
@@ -406,6 +422,7 @@ config DMA_ACPI
config DMA_OF
def_bool y
depends on OF
select DMA_ENGINE
comment "DMA Clients"
depends on DMA_ENGINE
drivers/dma/Makefile
+4 -2
View File
@@ -1,5 +1,5 @@
ccflags-$(CONFIG_DMADEVICES_DEBUG) := -DDEBUG
ccflags-$(CONFIG_DMADEVICES_VDEBUG) += -DVERBOSE_DEBUG
subdir-ccflags-$(CONFIG_DMADEVICES_DEBUG) := -DDEBUG
subdir-ccflags-$(CONFIG_DMADEVICES_VDEBUG) += -DVERBOSE_DEBUG
obj-$(CONFIG_DMA_ENGINE) += dmaengine.o
obj-$(CONFIG_DMA_VIRTUAL_CHANNELS) += virt-dma.o
@@ -48,3 +48,5 @@ obj-$(CONFIG_FSL_EDMA) += fsl-edma.o
obj-$(CONFIG_QCOM_BAM_DMA) += qcom_bam_dma.o
obj-y += xilinx/
obj-$(CONFIG_INTEL_MIC_X100_DMA) += mic_x100_dma.o
obj-$(CONFIG_NBPFAXI_DMA) += nbpfaxi.o
obj-$(CONFIG_DMA_SUN6I) += sun6i-dma.o
drivers/dma/TODO
-1
View File
@@ -7,7 +7,6 @@ TODO for slave dma
- imx-dma
- imx-sdma
- mxs-dma.c
- dw_dmac
- intel_mid_dma
4. Check other subsystems for dma drivers and merge/move to dmaengine
5. Remove dma_slave_config's dma direction.
drivers/dma/amba-pl08x.c
+3 -3
View File
@@ -1040,7 +1040,7 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x,
if (early_bytes) {
dev_vdbg(&pl08x->adev->dev,
"%s byte width LLIs (remain 0x%08x)\n",
"%s byte width LLIs (remain 0x%08zx)\n",
__func__, bd.remainder);
prep_byte_width_lli(pl08x, &bd, &cctl, early_bytes,
num_llis++, &total_bytes);
@@ -1653,7 +1653,7 @@ static struct dma_async_tx_descriptor *pl08x_prep_slave_sg(
static struct dma_async_tx_descriptor *pl08x_prep_dma_cyclic(
struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len,
size_t period_len, enum dma_transfer_direction direction,
unsigned long flags, void *context)
unsigned long flags)
{
struct pl08x_dma_chan *plchan = to_pl08x_chan(chan);
struct pl08x_driver_data *pl08x = plchan->host;
@@ -1662,7 +1662,7 @@ static struct dma_async_tx_descriptor *pl08x_prep_dma_cyclic(
dma_addr_t slave_addr;
dev_dbg(&pl08x->adev->dev,
"%s prepare cyclic transaction of %d/%d bytes %s %s\n",
"%s prepare cyclic transaction of %zd/%zd bytes %s %s\n",
__func__, period_len, buf_len,
direction == DMA_MEM_TO_DEV ? "to" : "from",
plchan->name);
drivers/dma/at_hdmac.c
+8 -7
View File
@@ -294,14 +294,16 @@ static int atc_get_bytes_left(struct dma_chan *chan)
ret = -EINVAL;
goto out;
}
atchan->remain_desc -= (desc_cur->lli.ctrla & ATC_BTSIZE_MAX)
<< (desc_first->tx_width);
if (atchan->remain_desc < 0) {
count = (desc_cur->lli.ctrla & ATC_BTSIZE_MAX)
<< desc_first->tx_width;
if (atchan->remain_desc < count) {
ret = -EINVAL;
goto out;
} else {
ret = atchan->remain_desc;
}
atchan->remain_desc -= count;
ret = atchan->remain_desc;
} else {
/*
* Get residual bytes when current
@@ -893,12 +895,11 @@ atc_dma_cyclic_fill_desc(struct dma_chan *chan, struct at_desc *desc,
* @period_len: number of bytes for each period
* @direction: transfer direction, to or from device
* @flags: tx descriptor status flags
* @context: transfer context (ignored)
*/
static struct dma_async_tx_descriptor *
atc_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len,
size_t period_len, enum dma_transfer_direction direction,
unsigned long flags, void *context)
unsigned long flags)
{
struct at_dma_chan *atchan = to_at_dma_chan(chan);
struct at_dma_slave *atslave = chan->private;

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