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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-29 15:34:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-29 15:34:57 -0700
commitef08e78268423fc4d7fbc3e54bd9a67fc8da7cc5 (patch)
treed0561d3ef89c9cd277a38168e33850666cbd33c4 /arch/arm/include/asm
parent71db34fc4330f7c784397acb9f1e6ee7f7b32eb2 (diff)
parent5b2e02e401deb44e7f5befe19404d8b2688efea4 (diff)
Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine update from Vinod Koul: "This includes the cookie cleanup by Russell, the addition of context parameter for dmaengine APIs, more arm dmaengine driver cleanup by moving code to dmaengine, this time for imx by Javier and pl330 by Boojin along with the usual driver fixes." Fix up some fairly trivial conflicts with various other cleanups. * 'next' of git://git.infradead.org/users/vkoul/slave-dma: (67 commits) dmaengine: imx: fix the build failure on x86_64 dmaengine: i.MX: Fix merge of cookie branch. dmaengine: i.MX: Add support for interleaved transfers. dmaengine: imx-dma: use 'dev_dbg' and 'dev_warn' for messages. dmaengine: imx-dma: remove 'imx_dmav1_baseaddr' and 'dma_clk'. dmaengine: imx-dma: remove unused arg of imxdma_sg_next. dmaengine: imx-dma: remove internal structure. dmaengine: imx-dma: remove 'resbytes' field of 'internal' structure. dmaengine: imx-dma: remove 'in_use' field of 'internal' structure. dmaengine: imx-dma: remove sg member from internal structure. dmaengine: imx-dma: remove 'imxdma_setup_sg_hw' function. dmaengine: imx-dma: remove 'imxdma_config_channel_hw' function. dmaengine: imx-dma: remove 'imxdma_setup_mem2mem_hw' function. dmaengine: imx-dma: remove dma_mode member of internal structure. dmaengine: imx-dma: remove data member from internal structure. dmaengine: imx-dma: merge old dma-v1.c with imx-dma.c dmaengine: at_hdmac: add slave config operation dmaengine: add context parameter to prep_slave_sg and prep_dma_cyclic dmaengine/dma_slave: introduce inline wrappers dma: imx-sdma: Treat firmware messages as warnings instead of erros ...
Diffstat (limited to 'arch/arm/include/asm')
-rw-r--r--arch/arm/include/asm/hardware/iop_adma.h2
-rw-r--r--arch/arm/include/asm/hardware/pl330.h217
2 files changed, 0 insertions, 219 deletions
diff --git a/arch/arm/include/asm/hardware/iop_adma.h b/arch/arm/include/asm/hardware/iop_adma.h
index 59b8c3892f7..122f86d8c99 100644
--- a/arch/arm/include/asm/hardware/iop_adma.h
+++ b/arch/arm/include/asm/hardware/iop_adma.h
@@ -49,7 +49,6 @@ struct iop_adma_device {
/**
* struct iop_adma_chan - internal representation of an ADMA device
* @pending: allows batching of hardware operations
- * @completed_cookie: identifier for the most recently completed operation
* @lock: serializes enqueue/dequeue operations to the slot pool
* @mmr_base: memory mapped register base
* @chain: device chain view of the descriptors
@@ -62,7 +61,6 @@ struct iop_adma_device {
*/
struct iop_adma_chan {
int pending;
- dma_cookie_t completed_cookie;
spinlock_t lock; /* protects the descriptor slot pool */
void __iomem *mmr_base;
struct list_head chain;
diff --git a/arch/arm/include/asm/hardware/pl330.h b/arch/arm/include/asm/hardware/pl330.h
deleted file mode 100644
index c1821385abf..00000000000
--- a/arch/arm/include/asm/hardware/pl330.h
+++ /dev/null
@@ -1,217 +0,0 @@
-/* linux/include/asm/hardware/pl330.h
- *
- * Copyright (C) 2010 Samsung Electronics Co. Ltd.
- * Jaswinder Singh <jassi.brar@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifndef __PL330_CORE_H
-#define __PL330_CORE_H
-
-#define PL330_MAX_CHAN 8
-#define PL330_MAX_IRQS 32
-#define PL330_MAX_PERI 32
-
-enum pl330_srccachectrl {
- SCCTRL0 = 0, /* Noncacheable and nonbufferable */
- SCCTRL1, /* Bufferable only */
- SCCTRL2, /* Cacheable, but do not allocate */
- SCCTRL3, /* Cacheable and bufferable, but do not allocate */
- SINVALID1,
- SINVALID2,
- SCCTRL6, /* Cacheable write-through, allocate on reads only */
- SCCTRL7, /* Cacheable write-back, allocate on reads only */
-};
-
-enum pl330_dstcachectrl {
- DCCTRL0 = 0, /* Noncacheable and nonbufferable */
- DCCTRL1, /* Bufferable only */
- DCCTRL2, /* Cacheable, but do not allocate */
- DCCTRL3, /* Cacheable and bufferable, but do not allocate */
- DINVALID1, /* AWCACHE = 0x1000 */
- DINVALID2,
- DCCTRL6, /* Cacheable write-through, allocate on writes only */
- DCCTRL7, /* Cacheable write-back, allocate on writes only */
-};
-
-/* Populated by the PL330 core driver for DMA API driver's info */
-struct pl330_config {
- u32 periph_id;
- u32 pcell_id;
-#define DMAC_MODE_NS (1 << 0)
- unsigned int mode;
- unsigned int data_bus_width:10; /* In number of bits */
- unsigned int data_buf_dep:10;
- unsigned int num_chan:4;
- unsigned int num_peri:6;
- u32 peri_ns;
- unsigned int num_events:6;
- u32 irq_ns;
-};
-
-/* Handle to the DMAC provided to the PL330 core */
-struct pl330_info {
- /* Owning device */
- struct device *dev;
- /* Size of MicroCode buffers for each channel. */
- unsigned mcbufsz;
- /* ioremap'ed address of PL330 registers. */
- void __iomem *base;
- /* Client can freely use it. */
- void *client_data;
- /* PL330 core data, Client must not touch it. */
- void *pl330_data;
- /* Populated by the PL330 core driver during pl330_add */
- struct pl330_config pcfg;
- /*
- * If the DMAC has some reset mechanism, then the
- * client may want to provide pointer to the method.
- */
- void (*dmac_reset)(struct pl330_info *pi);
-};
-
-enum pl330_byteswap {
- SWAP_NO = 0,
- SWAP_2,
- SWAP_4,
- SWAP_8,
- SWAP_16,
-};
-
-/**
- * Request Configuration.
- * The PL330 core does not modify this and uses the last
- * working configuration if the request doesn't provide any.
- *
- * The Client may want to provide this info only for the
- * first request and a request with new settings.
- */
-struct pl330_reqcfg {
- /* Address Incrementing */
- unsigned dst_inc:1;
- unsigned src_inc:1;
-
- /*
- * For now, the SRC & DST protection levels
- * and burst size/length are assumed same.
- */
- bool nonsecure;
- bool privileged;
- bool insnaccess;
- unsigned brst_len:5;
- unsigned brst_size:3; /* in power of 2 */
-
- enum pl330_dstcachectrl dcctl;
- enum pl330_srccachectrl scctl;
- enum pl330_byteswap swap;
-};
-
-/*
- * One cycle of DMAC operation.
- * There may be more than one xfer in a request.
- */
-struct pl330_xfer {
- u32 src_addr;
- u32 dst_addr;
- /* Size to xfer */
- u32 bytes;
- /*
- * Pointer to next xfer in the list.
- * The last xfer in the req must point to NULL.
- */
- struct pl330_xfer *next;
-};
-
-/* The xfer callbacks are made with one of these arguments. */
-enum pl330_op_err {
- /* The all xfers in the request were success. */
- PL330_ERR_NONE,
- /* If req aborted due to global error. */
- PL330_ERR_ABORT,
- /* If req failed due to problem with Channel. */
- PL330_ERR_FAIL,
-};
-
-enum pl330_reqtype {
- MEMTOMEM,
- MEMTODEV,
- DEVTOMEM,
- DEVTODEV,
-};
-
-/* A request defining Scatter-Gather List ending with NULL xfer. */
-struct pl330_req {
- enum pl330_reqtype rqtype;
- /* Index of peripheral for the xfer. */
- unsigned peri:5;
- /* Unique token for this xfer, set by the client. */
- void *token;
- /* Callback to be called after xfer. */
- void (*xfer_cb)(void *token, enum pl330_op_err err);
- /* If NULL, req will be done at last set parameters. */
- struct pl330_reqcfg *cfg;
- /* Pointer to first xfer in the request. */
- struct pl330_xfer *x;
-};
-
-/*
- * To know the status of the channel and DMAC, the client
- * provides a pointer to this structure. The PL330 core
- * fills it with current information.
- */
-struct pl330_chanstatus {
- /*
- * If the DMAC engine halted due to some error,
- * the client should remove-add DMAC.
- */
- bool dmac_halted;
- /*
- * If channel is halted due to some error,
- * the client should ABORT/FLUSH and START the channel.
- */
- bool faulting;
- /* Location of last load */
- u32 src_addr;
- /* Location of last store */
- u32 dst_addr;
- /*
- * Pointer to the currently active req, NULL if channel is
- * inactive, even though the requests may be present.
- */
- struct pl330_req *top_req;
- /* Pointer to req waiting second in the queue if any. */
- struct pl330_req *wait_req;
-};
-
-enum pl330_chan_op {
- /* Start the channel */
- PL330_OP_START,
- /* Abort the active xfer */
- PL330_OP_ABORT,
- /* Stop xfer and flush queue */
- PL330_OP_FLUSH,
-};
-
-extern int pl330_add(struct pl330_info *);
-extern void pl330_del(struct pl330_info *pi);
-extern int pl330_update(const struct pl330_info *pi);
-extern void pl330_release_channel(void *ch_id);
-extern void *pl330_request_channel(const struct pl330_info *pi);
-extern int pl330_chan_status(void *ch_id, struct pl330_chanstatus *pstatus);
-extern int pl330_chan_ctrl(void *ch_id, enum pl330_chan_op op);
-extern int pl330_submit_req(void *ch_id, struct pl330_req *r);
-
-#endif /* __PL330_CORE_H */