[net-next-2.6.git] / drivers / dma / Kconfig

#
# DMA engine configuration
#

menuconfig DMADEVICES
	bool "DMA Engine support"
	depends on HAS_DMA
	help
	  DMA engines can do asynchronous data transfers without
	  involving the host CPU.  Currently, this framework can be
	  used to offload memory copies in the network stack and
	  RAID operations in the MD driver.  This menu only presents
	  DMA Device drivers supported by the configured arch, it may
	  be empty in some cases.

config DMADEVICES_DEBUG
        bool "DMA Engine debugging"
        depends on DMADEVICES != n
        help
          This is an option for use by developers; most people should
          say N here.  This enables DMA engine core and driver debugging.

config DMADEVICES_VDEBUG
        bool "DMA Engine verbose debugging"
        depends on DMADEVICES_DEBUG != n
        help
          This is an option for use by developers; most people should
          say N here.  This enables deeper (more verbose) debugging of
          the DMA engine core and drivers.


if DMADEVICES

comment "DMA Devices"

config INTEL_MID_DMAC
	tristate "Intel MID DMA support for Peripheral DMA controllers"
	depends on PCI && X86
	select DMA_ENGINE
	default n
	help
	  Enable support for the Intel(R) MID DMA engine present
	  in Intel MID chipsets.

	  Say Y here if you have such a chipset.

	  If unsure, say N.

config ASYNC_TX_DISABLE_CHANNEL_SWITCH
	bool

config INTEL_IOATDMA
	tristate "Intel I/OAT DMA support"
	depends on PCI && X86
	select DMA_ENGINE
	select DCA
	select ASYNC_TX_DISABLE_CHANNEL_SWITCH
	select ASYNC_TX_DISABLE_PQ_VAL_DMA
	select ASYNC_TX_DISABLE_XOR_VAL_DMA
	help
	  Enable support for the Intel(R) I/OAT DMA engine present
	  in recent Intel Xeon chipsets.

	  Say Y here if you have such a chipset.

	  If unsure, say N.

config INTEL_IOP_ADMA
	tristate "Intel IOP ADMA support"
	depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
	select DMA_ENGINE
	help
	  Enable support for the Intel(R) IOP Series RAID engines.

config DW_DMAC
	tristate "Synopsys DesignWare AHB DMA support"
	depends on AVR32
	select DMA_ENGINE
	default y if CPU_AT32AP7000
	help
	  Support the Synopsys DesignWare AHB DMA controller.  This
	  can be integrated in chips such as the Atmel AT32ap7000.

config AT_HDMAC
	tristate "Atmel AHB DMA support"
	depends on ARCH_AT91SAM9RL || ARCH_AT91SAM9G45
	select DMA_ENGINE
	help
	  Support the Atmel AHB DMA controller.  This can be integrated in
	  chips such as the Atmel AT91SAM9RL.

config FSL_DMA
	tristate "Freescale Elo and Elo Plus DMA support"
	depends on FSL_SOC
	select DMA_ENGINE
	---help---
	  Enable support for the Freescale Elo and Elo Plus DMA controllers.
	  The Elo is the DMA controller on some 82xx and 83xx parts, and the
	  Elo Plus is the DMA controller on 85xx and 86xx parts.

config MPC512X_DMA
	tristate "Freescale MPC512x built-in DMA engine support"
	depends on PPC_MPC512x
	select DMA_ENGINE
	---help---
	  Enable support for the Freescale MPC512x built-in DMA engine.

config MV_XOR
	bool "Marvell XOR engine support"
	depends on PLAT_ORION
	select DMA_ENGINE
	---help---
	  Enable support for the Marvell XOR engine.

config MX3_IPU
	bool "MX3x Image Processing Unit support"
	depends on ARCH_MX3
	select DMA_ENGINE
	default y
	help
	  If you plan to use the Image Processing unit in the i.MX3x, say
	  Y here. If unsure, select Y.

config MX3_IPU_IRQS
	int "Number of dynamically mapped interrupts for IPU"
	depends on MX3_IPU
	range 2 137
	default 4
	help
	  Out of 137 interrupt sources on i.MX31 IPU only very few are used.
	  To avoid bloating the irq_desc[] array we allocate a sufficient
	  number of IRQ slots and map them dynamically to specific sources.

config TXX9_DMAC
	tristate "Toshiba TXx9 SoC DMA support"
	depends on MACH_TX49XX || MACH_TX39XX
	select DMA_ENGINE
	help
	  Support the TXx9 SoC internal DMA controller.  This can be
	  integrated in chips such as the Toshiba TX4927/38/39.

config SH_DMAE
	tristate "Renesas SuperH DMAC support"
	depends on (SUPERH && SH_DMA) || (ARM && ARCH_SHMOBILE)
	depends on !SH_DMA_API
	select DMA_ENGINE
	help
	  Enable support for the Renesas SuperH DMA controllers.

config COH901318
	bool "ST-Ericsson COH901318 DMA support"
	select DMA_ENGINE
	depends on ARCH_U300
	help
	  Enable support for ST-Ericsson COH 901 318 DMA.

config STE_DMA40
	bool "ST-Ericsson DMA40 support"
	depends on ARCH_U8500
	select DMA_ENGINE
	help
	  Support for ST-Ericsson DMA40 controller

config AMCC_PPC440SPE_ADMA
	tristate "AMCC PPC440SPe ADMA support"
	depends on 440SPe || 440SP
	select DMA_ENGINE
	select ARCH_HAS_ASYNC_TX_FIND_CHANNEL
	help
	  Enable support for the AMCC PPC440SPe RAID engines.

config TIMB_DMA
	tristate "Timberdale FPGA DMA support"
	depends on MFD_TIMBERDALE || HAS_IOMEM
	select DMA_ENGINE
	help
	  Enable support for the Timberdale FPGA DMA engine.

config ARCH_HAS_ASYNC_TX_FIND_CHANNEL
	bool

config PL330_DMA
	tristate "DMA API Driver for PL330"
	select DMA_ENGINE
	depends on PL330
	help
	  Select if your platform has one or more PL330 DMACs.
	  You need to provide platform specific settings via
	  platform_data for a dma-pl330 device.

config PCH_DMA
	tristate "Topcliff PCH DMA support"
	depends on PCI && X86
	select DMA_ENGINE
	help
	  Enable support for the Topcliff PCH DMA engine.

config DMA_ENGINE
	bool

comment "DMA Clients"
	depends on DMA_ENGINE

config NET_DMA
	bool "Network: TCP receive copy offload"
	depends on DMA_ENGINE && NET
	default (INTEL_IOATDMA || FSL_DMA)
	help
	  This enables the use of DMA engines in the network stack to
	  offload receive copy-to-user operations, freeing CPU cycles.

	  Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise
	  say N.

config ASYNC_TX_DMA
	bool "Async_tx: Offload support for the async_tx api"
	depends on DMA_ENGINE
	help
	  This allows the async_tx api to take advantage of offload engines for
	  memcpy, memset, xor, and raid6 p+q operations.  If your platform has
	  a dma engine that can perform raid operations and you have enabled
	  MD_RAID456 say Y.

	  If unsure, say N.

config DMATEST
	tristate "DMA Test client"
	depends on DMA_ENGINE
	help
	  Simple DMA test client. Say N unless you're debugging a
	  DMA Device driver.

endif
Commit	Line	Data
c13c8260 CL	1	#
	2	# DMA engine configuration
	3	#
	4
2ed6dc34	5	menuconfig DMADEVICES
6d4f5879	6	bool "DMA Engine support"
04ce9ab3	7	depends on HAS_DMA
2ed6dc34	8	help
6d4f5879 HS	9	DMA engines can do asynchronous data transfers without
	10	involving the host CPU. Currently, this framework can be
	11	used to offload memory copies in the network stack and
9c402f4e DW	12	RAID operations in the MD driver. This menu only presents
	13	DMA Device drivers supported by the configured arch, it may
	14	be empty in some cases.
2ed6dc34	15
6c664a89 LW	16	config DMADEVICES_DEBUG
	17	bool "DMA Engine debugging"
	18	depends on DMADEVICES != n
	19	help
	20	This is an option for use by developers; most people should
	21	say N here. This enables DMA engine core and driver debugging.
	22
	23	config DMADEVICES_VDEBUG
	24	bool "DMA Engine verbose debugging"
	25	depends on DMADEVICES_DEBUG != n
	26	help
	27	This is an option for use by developers; most people should
	28	say N here. This enables deeper (more verbose) debugging of
	29	the DMA engine core and drivers.
	30
	31
2ed6dc34 SN	32	if DMADEVICES
	33
	34	comment "DMA Devices"
	35
b3c567e4 VK	36	config INTEL_MID_DMAC
	37	tristate "Intel MID DMA support for Peripheral DMA controllers"
	38	depends on PCI && X86
	39	select DMA_ENGINE
	40	default n
	41	help
	42	Enable support for the Intel(R) MID DMA engine present
	43	in Intel MID chipsets.
	44
	45	Say Y here if you have such a chipset.
	46
	47	If unsure, say N.
	48
138f4c35 DW	49	config ASYNC_TX_DISABLE_CHANNEL_SWITCH
	50	bool
	51
2ed6dc34 SN	52	config INTEL_IOATDMA
	53	tristate "Intel I/OAT DMA support"
	54	depends on PCI && X86
	55	select DMA_ENGINE
	56	select DCA
138f4c35	57	select ASYNC_TX_DISABLE_CHANNEL_SWITCH
7b3cc2b1 DW	58	select ASYNC_TX_DISABLE_PQ_VAL_DMA
7b3cc2b1 DW	59	select ASYNC_TX_DISABLE_XOR_VAL_DMA
2ed6dc34 SN	60	help
	61	Enable support for the Intel(R) I/OAT DMA engine present
	62	in recent Intel Xeon chipsets.
	63
	64	Say Y here if you have such a chipset.
	65
	66	If unsure, say N.
	67
	68	config INTEL_IOP_ADMA
	69	tristate "Intel IOP ADMA support"
	70	depends on ARCH_IOP32X \|\| ARCH_IOP33X \|\| ARCH_IOP13XX
2ed6dc34 SN	71	select DMA_ENGINE
	72	help
	73	Enable support for the Intel(R) IOP Series RAID engines.
c13c8260	74
3bfb1d20 HS	75	config DW_DMAC
	76	tristate "Synopsys DesignWare AHB DMA support"
	77	depends on AVR32
	78	select DMA_ENGINE
	79	default y if CPU_AT32AP7000
	80	help
	81	Support the Synopsys DesignWare AHB DMA controller. This
	82	can be integrated in chips such as the Atmel AT32ap7000.
	83
dc78baa2 NF	84	config AT_HDMAC
dc78baa2 NF	85	tristate "Atmel AHB DMA support"
cd3abf98	86	depends on ARCH_AT91SAM9RL \|\| ARCH_AT91SAM9G45
dc78baa2 NF	87	select DMA_ENGINE
	88	help
	89	Support the Atmel AHB DMA controller. This can be integrated in
	90	chips such as the Atmel AT91SAM9RL.
	91
173acc7c	92	config FSL_DMA
77cd62e8 TT	93	tristate "Freescale Elo and Elo Plus DMA support"
77cd62e8 TT	94	depends on FSL_SOC
173acc7c ZW	95	select DMA_ENGINE
173acc7c ZW	96	---help---
77cd62e8 TT	97	Enable support for the Freescale Elo and Elo Plus DMA controllers.
	98	The Elo is the DMA controller on some 82xx and 83xx parts, and the
	99	Elo Plus is the DMA controller on 85xx and 86xx parts.
173acc7c	100
0fb6f739 PZ	101	config MPC512X_DMA
	102	tristate "Freescale MPC512x built-in DMA engine support"
	103	depends on PPC_MPC512x
	104	select DMA_ENGINE
	105	---help---
	106	Enable support for the Freescale MPC512x built-in DMA engine.
	107
ff7b0479 SB	108	config MV_XOR
	109	bool "Marvell XOR engine support"
	110	depends on PLAT_ORION
ff7b0479 SB	111	select DMA_ENGINE
	112	---help---
	113	Enable support for the Marvell XOR engine.
	114
5296b56d GL	115	config MX3_IPU
	116	bool "MX3x Image Processing Unit support"
	117	depends on ARCH_MX3
	118	select DMA_ENGINE
	119	default y
	120	help
	121	If you plan to use the Image Processing unit in the i.MX3x, say
	122	Y here. If unsure, select Y.
	123
	124	config MX3_IPU_IRQS
	125	int "Number of dynamically mapped interrupts for IPU"
	126	depends on MX3_IPU
	127	range 2 137
	128	default 4
	129	help
	130	Out of 137 interrupt sources on i.MX31 IPU only very few are used.
	131	To avoid bloating the irq_desc[] array we allocate a sufficient
	132	number of IRQ slots and map them dynamically to specific sources.
	133
ea76f0b3 AN	134	config TXX9_DMAC
	135	tristate "Toshiba TXx9 SoC DMA support"
	136	depends on MACH_TX49XX \|\| MACH_TX39XX
	137	select DMA_ENGINE
	138	help
	139	Support the TXx9 SoC internal DMA controller. This can be
	140	integrated in chips such as the Toshiba TX4927/38/39.
	141
d8902adc NI	142	config SH_DMAE
d8902adc NI	143	tristate "Renesas SuperH DMAC support"
927a7c9c	144	depends on (SUPERH && SH_DMA) \|\| (ARM && ARCH_SHMOBILE)
d8902adc NI	145	depends on !SH_DMA_API
	146	select DMA_ENGINE
	147	help
	148	Enable support for the Renesas SuperH DMA controllers.
	149
61f135b9 LW	150	config COH901318
	151	bool "ST-Ericsson COH901318 DMA support"
	152	select DMA_ENGINE
	153	depends on ARCH_U300
	154	help
	155	Enable support for ST-Ericsson COH 901 318 DMA.
	156
8d318a50 LW	157	config STE_DMA40
	158	bool "ST-Ericsson DMA40 support"
	159	depends on ARCH_U8500
	160	select DMA_ENGINE
	161	help
	162	Support for ST-Ericsson DMA40 controller
	163
12458ea0 AG	164	config AMCC_PPC440SPE_ADMA
	165	tristate "AMCC PPC440SPe ADMA support"
	166	depends on 440SPe \|\| 440SP
	167	select DMA_ENGINE
	168	select ARCH_HAS_ASYNC_TX_FIND_CHANNEL
	169	help
	170	Enable support for the AMCC PPC440SPe RAID engines.
	171
de5d4453 RR	172	config TIMB_DMA
	173	tristate "Timberdale FPGA DMA support"
	174	depends on MFD_TIMBERDALE \|\| HAS_IOMEM
	175	select DMA_ENGINE
	176	help
	177	Enable support for the Timberdale FPGA DMA engine.
	178
12458ea0 AG	179	config ARCH_HAS_ASYNC_TX_FIND_CHANNEL
	180	bool
	181
b3040e40 JB	182	config PL330_DMA
	183	tristate "DMA API Driver for PL330"
	184	select DMA_ENGINE
	185	depends on PL330
	186	help
	187	Select if your platform has one or more PL330 DMACs.
	188	You need to provide platform specific settings via
	189	platform_data for a dma-pl330 device.
	190
0c42bd0e YW	191	config PCH_DMA
	192	tristate "Topcliff PCH DMA support"
	193	depends on PCI && X86
	194	select DMA_ENGINE
	195	help
	196	Enable support for the Topcliff PCH DMA engine.
	197
c13c8260	198	config DMA_ENGINE
2ed6dc34	199	bool
c13c8260	200
db217334	201	comment "DMA Clients"
2ed6dc34	202	depends on DMA_ENGINE
db217334 CL	203
	204	config NET_DMA
	205	bool "Network: TCP receive copy offload"
	206	depends on DMA_ENGINE && NET
9c402f4e	207	default (INTEL_IOATDMA \|\| FSL_DMA)
2ed6dc34	208	help
db217334 CL	209	This enables the use of DMA engines in the network stack to
db217334 CL	210	offload receive copy-to-user operations, freeing CPU cycles.
9c402f4e DW	211
	212	Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise
	213	say N.
db217334	214
729b5d1b DW	215	config ASYNC_TX_DMA
729b5d1b DW	216	bool "Async_tx: Offload support for the async_tx api"
9a8de639	217	depends on DMA_ENGINE
729b5d1b DW	218	help
	219	This allows the async_tx api to take advantage of offload engines for
	220	memcpy, memset, xor, and raid6 p+q operations. If your platform has
	221	a dma engine that can perform raid operations and you have enabled
	222	MD_RAID456 say Y.
	223
	224	If unsure, say N.
	225
4a776f0a HS	226	config DMATEST
	227	tristate "DMA Test client"
	228	depends on DMA_ENGINE
	229	help
	230	Simple DMA test client. Say N unless you're debugging a
	231	DMA Device driver.
	232
2ed6dc34	233	endif