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drivers/dma: remove unused support for MEMSET operations
There have never been any real users of MEMSET operations since they
have been introduced in January 2007 by commit 7405f74bad ("dmaengine:
refactor dmaengine around dma_async_tx_descriptor"). Therefore remove
support for them for now, it can be always brought back when needed.
[sebastian.hesselbarth@gmail.com: fix drivers/dma/mv_xor]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Acked-by: Dan Williams <djbw@fb.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Olof Johansson <olof@lixom.net>
Cc: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Bartlomiej Zolnierkiewicz
Linus Torvalds
parent
dcf6d29483
commit
48a9db462d
@ -222,5 +222,4 @@ drivers/dma/: location for offload engine drivers
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include/linux/async_tx.h: core header file for the async_tx api
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crypto/async_tx/async_tx.c: async_tx interface to dmaengine and common code
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crypto/async_tx/async_memcpy.c: copy offload
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crypto/async_tx/async_memset.c: memory fill offload
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crypto/async_tx/async_xor.c: xor and xor zero sum offload
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@ -469,7 +469,6 @@ void __init iop13xx_platform_init(void)
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dma_cap_set(DMA_MEMCPY, plat_data->cap_mask);
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dma_cap_set(DMA_XOR, plat_data->cap_mask);
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dma_cap_set(DMA_XOR_VAL, plat_data->cap_mask);
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dma_cap_set(DMA_MEMSET, plat_data->cap_mask);
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dma_cap_set(DMA_INTERRUPT, plat_data->cap_mask);
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break;
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case IOP13XX_INIT_ADMA_1:
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@ -479,7 +478,6 @@ void __init iop13xx_platform_init(void)
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dma_cap_set(DMA_MEMCPY, plat_data->cap_mask);
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dma_cap_set(DMA_XOR, plat_data->cap_mask);
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dma_cap_set(DMA_XOR_VAL, plat_data->cap_mask);
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dma_cap_set(DMA_MEMSET, plat_data->cap_mask);
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dma_cap_set(DMA_INTERRUPT, plat_data->cap_mask);
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break;
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case IOP13XX_INIT_ADMA_2:
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@ -489,7 +487,6 @@ void __init iop13xx_platform_init(void)
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dma_cap_set(DMA_MEMCPY, plat_data->cap_mask);
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dma_cap_set(DMA_XOR, plat_data->cap_mask);
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dma_cap_set(DMA_XOR_VAL, plat_data->cap_mask);
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dma_cap_set(DMA_MEMSET, plat_data->cap_mask);
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dma_cap_set(DMA_INTERRUPT, plat_data->cap_mask);
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dma_cap_set(DMA_PQ, plat_data->cap_mask);
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dma_cap_set(DMA_PQ_VAL, plat_data->cap_mask);
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@ -192,12 +192,10 @@ static int __init iop3xx_adma_cap_init(void)
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#ifdef CONFIG_ARCH_IOP32X /* the 32x AAU does not perform zero sum */
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dma_cap_set(DMA_XOR, iop3xx_aau_data.cap_mask);
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dma_cap_set(DMA_MEMSET, iop3xx_aau_data.cap_mask);
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dma_cap_set(DMA_INTERRUPT, iop3xx_aau_data.cap_mask);
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#else
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dma_cap_set(DMA_XOR, iop3xx_aau_data.cap_mask);
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dma_cap_set(DMA_XOR_VAL, iop3xx_aau_data.cap_mask);
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dma_cap_set(DMA_MEMSET, iop3xx_aau_data.cap_mask);
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dma_cap_set(DMA_INTERRUPT, iop3xx_aau_data.cap_mask);
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#endif
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@ -666,14 +666,9 @@ void __init orion_xor0_init(unsigned long mapbase_low,
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orion_xor0_shared_resources[3].start = irq_1;
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orion_xor0_shared_resources[3].end = irq_1;
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/*
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* two engines can't do memset simultaneously, this limitation
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* satisfied by removing memset support from one of the engines.
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*/
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dma_cap_set(DMA_MEMCPY, orion_xor0_channels_data[0].cap_mask);
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dma_cap_set(DMA_XOR, orion_xor0_channels_data[0].cap_mask);
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dma_cap_set(DMA_MEMSET, orion_xor0_channels_data[1].cap_mask);
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dma_cap_set(DMA_MEMCPY, orion_xor0_channels_data[1].cap_mask);
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dma_cap_set(DMA_XOR, orion_xor0_channels_data[1].cap_mask);
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@ -732,14 +727,9 @@ void __init orion_xor1_init(unsigned long mapbase_low,
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orion_xor1_shared_resources[3].start = irq_1;
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orion_xor1_shared_resources[3].end = irq_1;
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/*
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* two engines can't do memset simultaneously, this limitation
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* satisfied by removing memset support from one of the engines.
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*/
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dma_cap_set(DMA_MEMCPY, orion_xor1_channels_data[0].cap_mask);
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dma_cap_set(DMA_XOR, orion_xor1_channels_data[0].cap_mask);
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dma_cap_set(DMA_MEMSET, orion_xor1_channels_data[1].cap_mask);
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dma_cap_set(DMA_MEMCPY, orion_xor1_channels_data[1].cap_mask);
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dma_cap_set(DMA_XOR, orion_xor1_channels_data[1].cap_mask);
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@ -10,10 +10,6 @@ config ASYNC_XOR
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select ASYNC_CORE
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select XOR_BLOCKS
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config ASYNC_MEMSET
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tristate
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select ASYNC_CORE
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config ASYNC_PQ
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tristate
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select ASYNC_CORE
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@ -1,6 +1,5 @@
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obj-$(CONFIG_ASYNC_CORE) += async_tx.o
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obj-$(CONFIG_ASYNC_MEMCPY) += async_memcpy.o
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obj-$(CONFIG_ASYNC_MEMSET) += async_memset.o
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obj-$(CONFIG_ASYNC_XOR) += async_xor.o
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obj-$(CONFIG_ASYNC_PQ) += async_pq.o
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obj-$(CONFIG_ASYNC_RAID6_RECOV) += async_raid6_recov.o
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@ -1,89 +0,0 @@
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/*
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* memory fill offload engine support
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*
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* Copyright © 2006, Intel Corporation.
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*
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* Dan Williams <dan.j.williams@intel.com>
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*
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* with architecture considerations by:
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* Neil Brown <neilb@suse.de>
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* Jeff Garzik <jeff@garzik.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/interrupt.h>
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#include <linux/module.h>
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#include <linux/mm.h>
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#include <linux/dma-mapping.h>
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#include <linux/async_tx.h>
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/**
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* async_memset - attempt to fill memory with a dma engine.
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* @dest: destination page
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* @val: fill value
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* @offset: offset in pages to start transaction
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* @len: length in bytes
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*
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* honored flags: ASYNC_TX_ACK
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*/
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struct dma_async_tx_descriptor *
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async_memset(struct page *dest, int val, unsigned int offset, size_t len,
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struct async_submit_ctl *submit)
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{
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struct dma_chan *chan = async_tx_find_channel(submit, DMA_MEMSET,
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&dest, 1, NULL, 0, len);
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struct dma_device *device = chan ? chan->device : NULL;
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struct dma_async_tx_descriptor *tx = NULL;
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if (device && is_dma_fill_aligned(device, offset, 0, len)) {
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dma_addr_t dma_dest;
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unsigned long dma_prep_flags = 0;
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if (submit->cb_fn)
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dma_prep_flags |= DMA_PREP_INTERRUPT;
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if (submit->flags & ASYNC_TX_FENCE)
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dma_prep_flags |= DMA_PREP_FENCE;
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dma_dest = dma_map_page(device->dev, dest, offset, len,
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DMA_FROM_DEVICE);
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tx = device->device_prep_dma_memset(chan, dma_dest, val, len,
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dma_prep_flags);
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}
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if (tx) {
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pr_debug("%s: (async) len: %zu\n", __func__, len);
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async_tx_submit(chan, tx, submit);
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} else { /* run the memset synchronously */
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void *dest_buf;
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pr_debug("%s: (sync) len: %zu\n", __func__, len);
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dest_buf = page_address(dest) + offset;
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/* wait for any prerequisite operations */
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async_tx_quiesce(&submit->depend_tx);
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memset(dest_buf, val, len);
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async_tx_sync_epilog(submit);
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}
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return tx;
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}
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EXPORT_SYMBOL_GPL(async_memset);
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MODULE_AUTHOR("Intel Corporation");
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MODULE_DESCRIPTION("asynchronous memset api");
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MODULE_LICENSE("GPL");
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@ -663,11 +663,6 @@ static bool device_has_all_tx_types(struct dma_device *device)
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return false;
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#endif
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#if defined(CONFIG_ASYNC_MEMSET) || defined(CONFIG_ASYNC_MEMSET_MODULE)
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if (!dma_has_cap(DMA_MEMSET, device->cap_mask))
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return false;
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#endif
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#if defined(CONFIG_ASYNC_XOR) || defined(CONFIG_ASYNC_XOR_MODULE)
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if (!dma_has_cap(DMA_XOR, device->cap_mask))
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return false;
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@ -729,8 +724,6 @@ int dma_async_device_register(struct dma_device *device)
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!device->device_prep_dma_pq);
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BUG_ON(dma_has_cap(DMA_PQ_VAL, device->cap_mask) &&
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!device->device_prep_dma_pq_val);
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BUG_ON(dma_has_cap(DMA_MEMSET, device->cap_mask) &&
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!device->device_prep_dma_memset);
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BUG_ON(dma_has_cap(DMA_INTERRUPT, device->cap_mask) &&
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!device->device_prep_dma_interrupt);
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BUG_ON(dma_has_cap(DMA_SG, device->cap_mask) &&
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@ -1105,12 +1105,11 @@ static ssize_t cap_show(struct dma_chan *c, char *page)
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{
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struct dma_device *dma = c->device;
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return sprintf(page, "copy%s%s%s%s%s%s\n",
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return sprintf(page, "copy%s%s%s%s%s\n",
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dma_has_cap(DMA_PQ, dma->cap_mask) ? " pq" : "",
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dma_has_cap(DMA_PQ_VAL, dma->cap_mask) ? " pq_val" : "",
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dma_has_cap(DMA_XOR, dma->cap_mask) ? " xor" : "",
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dma_has_cap(DMA_XOR_VAL, dma->cap_mask) ? " xor_val" : "",
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dma_has_cap(DMA_MEMSET, dma->cap_mask) ? " fill" : "",
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dma_has_cap(DMA_INTERRUPT, dma->cap_mask) ? " intr" : "");
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}
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@ -123,7 +123,6 @@ static inline u16 ioat2_xferlen_to_descs(struct ioat2_dma_chan *ioat, size_t len
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struct ioat_ring_ent {
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union {
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struct ioat_dma_descriptor *hw;
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struct ioat_fill_descriptor *fill;
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struct ioat_xor_descriptor *xor;
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struct ioat_xor_ext_descriptor *xor_ex;
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struct ioat_pq_descriptor *pq;
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@ -311,14 +311,6 @@ static void ioat3_dma_unmap(struct ioat2_dma_chan *ioat,
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if (!desc->hw->ctl_f.null) /* skip 'interrupt' ops */
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ioat_dma_unmap(chan, flags, len, desc->hw);
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break;
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case IOAT_OP_FILL: {
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struct ioat_fill_descriptor *hw = desc->fill;
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if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP))
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ioat_unmap(pdev, hw->dst_addr - offset, len,
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PCI_DMA_FROMDEVICE, flags, 1);
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break;
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}
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case IOAT_OP_XOR_VAL:
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case IOAT_OP_XOR: {
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struct ioat_xor_descriptor *xor = desc->xor;
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@ -823,51 +815,6 @@ ioat3_tx_status(struct dma_chan *c, dma_cookie_t cookie,
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return dma_cookie_status(c, cookie, txstate);
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}
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static struct dma_async_tx_descriptor *
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ioat3_prep_memset_lock(struct dma_chan *c, dma_addr_t dest, int value,
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size_t len, unsigned long flags)
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{
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struct ioat2_dma_chan *ioat = to_ioat2_chan(c);
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struct ioat_ring_ent *desc;
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size_t total_len = len;
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struct ioat_fill_descriptor *fill;
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u64 src_data = (0x0101010101010101ULL) * (value & 0xff);
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int num_descs, idx, i;
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num_descs = ioat2_xferlen_to_descs(ioat, len);
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if (likely(num_descs) && ioat2_check_space_lock(ioat, num_descs) == 0)
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idx = ioat->head;
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else
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return NULL;
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i = 0;
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do {
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size_t xfer_size = min_t(size_t, len, 1 << ioat->xfercap_log);
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desc = ioat2_get_ring_ent(ioat, idx + i);
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fill = desc->fill;
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fill->size = xfer_size;
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fill->src_data = src_data;
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fill->dst_addr = dest;
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fill->ctl = 0;
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fill->ctl_f.op = IOAT_OP_FILL;
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len -= xfer_size;
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dest += xfer_size;
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dump_desc_dbg(ioat, desc);
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} while (++i < num_descs);
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desc->txd.flags = flags;
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desc->len = total_len;
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fill->ctl_f.int_en = !!(flags & DMA_PREP_INTERRUPT);
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fill->ctl_f.fence = !!(flags & DMA_PREP_FENCE);
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fill->ctl_f.compl_write = 1;
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dump_desc_dbg(ioat, desc);
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/* we leave the channel locked to ensure in order submission */
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return &desc->txd;
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}
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static struct dma_async_tx_descriptor *
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__ioat3_prep_xor_lock(struct dma_chan *c, enum sum_check_flags *result,
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dma_addr_t dest, dma_addr_t *src, unsigned int src_cnt,
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@ -1431,7 +1378,7 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
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struct page *xor_srcs[IOAT_NUM_SRC_TEST];
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struct page *xor_val_srcs[IOAT_NUM_SRC_TEST + 1];
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dma_addr_t dma_srcs[IOAT_NUM_SRC_TEST + 1];
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dma_addr_t dma_addr, dest_dma;
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dma_addr_t dest_dma;
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struct dma_async_tx_descriptor *tx;
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struct dma_chan *dma_chan;
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dma_cookie_t cookie;
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@ -1598,56 +1545,6 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
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goto free_resources;
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}
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/* skip memset if the capability is not present */
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if (!dma_has_cap(DMA_MEMSET, dma_chan->device->cap_mask))
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goto free_resources;
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/* test memset */
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op = IOAT_OP_FILL;
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dma_addr = dma_map_page(dev, dest, 0,
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PAGE_SIZE, DMA_FROM_DEVICE);
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tx = dma->device_prep_dma_memset(dma_chan, dma_addr, 0, PAGE_SIZE,
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DMA_PREP_INTERRUPT |
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DMA_COMPL_SKIP_SRC_UNMAP |
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DMA_COMPL_SKIP_DEST_UNMAP);
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if (!tx) {
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dev_err(dev, "Self-test memset prep failed\n");
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err = -ENODEV;
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goto dma_unmap;
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}
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async_tx_ack(tx);
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init_completion(&cmp);
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tx->callback = ioat3_dma_test_callback;
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tx->callback_param = &cmp;
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cookie = tx->tx_submit(tx);
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if (cookie < 0) {
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dev_err(dev, "Self-test memset setup failed\n");
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err = -ENODEV;
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goto dma_unmap;
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}
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dma->device_issue_pending(dma_chan);
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tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
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if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_SUCCESS) {
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dev_err(dev, "Self-test memset timed out\n");
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err = -ENODEV;
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goto dma_unmap;
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}
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dma_unmap_page(dev, dma_addr, PAGE_SIZE, DMA_FROM_DEVICE);
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for (i = 0; i < PAGE_SIZE/sizeof(u32); i++) {
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u32 *ptr = page_address(dest);
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if (ptr[i]) {
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dev_err(dev, "Self-test memset failed compare\n");
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err = -ENODEV;
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goto free_resources;
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}
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}
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/* test for non-zero parity sum */
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op = IOAT_OP_XOR_VAL;
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@ -1706,8 +1603,7 @@ dma_unmap:
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for (i = 0; i < IOAT_NUM_SRC_TEST + 1; i++)
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dma_unmap_page(dev, dma_srcs[i], PAGE_SIZE,
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DMA_TO_DEVICE);
|
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} else if (op == IOAT_OP_FILL)
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dma_unmap_page(dev, dma_addr, PAGE_SIZE, DMA_FROM_DEVICE);
|
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}
|
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free_resources:
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dma->device_free_chan_resources(dma_chan);
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out:
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@ -1944,12 +1840,6 @@ int ioat3_dma_probe(struct ioatdma_device *device, int dca)
|
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}
|
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}
|
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|
||||
if (is_raid_device && (device->cap & IOAT_CAP_FILL_BLOCK)) {
|
||||
dma_cap_set(DMA_MEMSET, dma->cap_mask);
|
||||
dma->device_prep_dma_memset = ioat3_prep_memset_lock;
|
||||
}
|
||||
|
||||
|
||||
dma->device_tx_status = ioat3_tx_status;
|
||||
device->cleanup_fn = ioat3_cleanup_event;
|
||||
device->timer_fn = ioat3_timer_event;
|
||||
|
||||
@ -100,33 +100,6 @@ struct ioat_dma_descriptor {
|
||||
uint64_t user2;
|
||||
};
|
||||
|
||||
struct ioat_fill_descriptor {
|
||||
uint32_t size;
|
||||
union {
|
||||
uint32_t ctl;
|
||||
struct {
|
||||
unsigned int int_en:1;
|
||||
unsigned int rsvd:1;
|
||||
unsigned int dest_snoop_dis:1;
|
||||
unsigned int compl_write:1;
|
||||
unsigned int fence:1;
|
||||
unsigned int rsvd2:2;
|
||||
unsigned int dest_brk:1;
|
||||
unsigned int bundle:1;
|
||||
unsigned int rsvd4:15;
|
||||
#define IOAT_OP_FILL 0x01
|
||||
unsigned int op:8;
|
||||
} ctl_f;
|
||||
};
|
||||
uint64_t src_data;
|
||||
uint64_t dst_addr;
|
||||
uint64_t next;
|
||||
uint64_t rsv1;
|
||||
uint64_t next_dst_addr;
|
||||
uint64_t user1;
|
||||
uint64_t user2;
|
||||
};
|
||||
|
||||
struct ioat_xor_descriptor {
|
||||
uint32_t size;
|
||||
union {
|
||||
|
||||
@ -632,39 +632,6 @@ iop_adma_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dma_dest,
|
||||
return sw_desc ? &sw_desc->async_tx : NULL;
|
||||
}
|
||||
|
||||
static struct dma_async_tx_descriptor *
|
||||
iop_adma_prep_dma_memset(struct dma_chan *chan, dma_addr_t dma_dest,
|
||||
int value, size_t len, unsigned long flags)
|
||||
{
|
||||
struct iop_adma_chan *iop_chan = to_iop_adma_chan(chan);
|
||||
struct iop_adma_desc_slot *sw_desc, *grp_start;
|
||||
int slot_cnt, slots_per_op;
|
||||
|
||||
if (unlikely(!len))
|
||||
return NULL;
|
||||
BUG_ON(len > IOP_ADMA_MAX_BYTE_COUNT);
|
||||
|
||||
dev_dbg(iop_chan->device->common.dev, "%s len: %u\n",
|
||||
__func__, len);
|
||||
|
||||
spin_lock_bh(&iop_chan->lock);
|
||||
slot_cnt = iop_chan_memset_slot_count(len, &slots_per_op);
|
||||
sw_desc = iop_adma_alloc_slots(iop_chan, slot_cnt, slots_per_op);
|
||||
if (sw_desc) {
|
||||
grp_start = sw_desc->group_head;
|
||||
iop_desc_init_memset(grp_start, flags);
|
||||
iop_desc_set_byte_count(grp_start, iop_chan, len);
|
||||
iop_desc_set_block_fill_val(grp_start, value);
|
||||
iop_desc_set_dest_addr(grp_start, iop_chan, dma_dest);
|
||||
sw_desc->unmap_src_cnt = 1;
|
||||
sw_desc->unmap_len = len;
|
||||
sw_desc->async_tx.flags = flags;
|
||||
}
|
||||
spin_unlock_bh(&iop_chan->lock);
|
||||
|
||||
return sw_desc ? &sw_desc->async_tx : NULL;
|
||||
}
|
||||
|
||||
static struct dma_async_tx_descriptor *
|
||||
iop_adma_prep_dma_xor(struct dma_chan *chan, dma_addr_t dma_dest,
|
||||
dma_addr_t *dma_src, unsigned int src_cnt, size_t len,
|
||||
@ -1176,33 +1143,6 @@ iop_adma_xor_val_self_test(struct iop_adma_device *device)
|
||||
goto free_resources;
|
||||
}
|
||||
|
||||
/* test memset */
|
||||
dma_addr = dma_map_page(dma_chan->device->dev, dest, 0,
|
||||
PAGE_SIZE, DMA_FROM_DEVICE);
|
||||
tx = iop_adma_prep_dma_memset(dma_chan, dma_addr, 0, PAGE_SIZE,
|
||||
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
|
||||
|
||||
cookie = iop_adma_tx_submit(tx);
|
||||
iop_adma_issue_pending(dma_chan);
|
||||
msleep(8);
|
||||
|
||||
if (iop_adma_status(dma_chan, cookie, NULL) != DMA_SUCCESS) {
|
||||
dev_err(dma_chan->device->dev,
|
||||
"Self-test memset timed out, disabling\n");
|
||||
err = -ENODEV;
|
||||
goto free_resources;
|
||||
}
|
||||
|
||||
for (i = 0; i < PAGE_SIZE/sizeof(u32); i++) {
|
||||
u32 *ptr = page_address(dest);
|
||||
if (ptr[i]) {
|
||||
dev_err(dma_chan->device->dev,
|
||||
"Self-test memset failed compare, disabling\n");
|
||||
err = -ENODEV;
|
||||
goto free_resources;
|
||||
}
|
||||
}
|
||||
|
||||
/* test for non-zero parity sum */
|
||||
zero_sum_result = 0;
|
||||
for (i = 0; i < IOP_ADMA_NUM_SRC_TEST + 1; i++)
|
||||
@ -1487,8 +1427,6 @@ static int iop_adma_probe(struct platform_device *pdev)
|
||||
/* set prep routines based on capability */
|
||||
if (dma_has_cap(DMA_MEMCPY, dma_dev->cap_mask))
|
||||
dma_dev->device_prep_dma_memcpy = iop_adma_prep_dma_memcpy;
|
||||
if (dma_has_cap(DMA_MEMSET, dma_dev->cap_mask))
|
||||
dma_dev->device_prep_dma_memset = iop_adma_prep_dma_memset;
|
||||
if (dma_has_cap(DMA_XOR, dma_dev->cap_mask)) {
|
||||
dma_dev->max_xor = iop_adma_get_max_xor();
|
||||
dma_dev->device_prep_dma_xor = iop_adma_prep_dma_xor;
|
||||
@ -1556,8 +1494,7 @@ static int iop_adma_probe(struct platform_device *pdev)
|
||||
goto err_free_iop_chan;
|
||||
}
|
||||
|
||||
if (dma_has_cap(DMA_XOR, dma_dev->cap_mask) ||
|
||||
dma_has_cap(DMA_MEMSET, dma_dev->cap_mask)) {
|
||||
if (dma_has_cap(DMA_XOR, dma_dev->cap_mask)) {
|
||||
ret = iop_adma_xor_val_self_test(adev);
|
||||
dev_dbg(&pdev->dev, "xor self test returned %d\n", ret);
|
||||
if (ret)
|
||||
@ -1584,7 +1521,6 @@ static int iop_adma_probe(struct platform_device *pdev)
|
||||
dma_has_cap(DMA_PQ_VAL, dma_dev->cap_mask) ? "pq_val " : "",
|
||||
dma_has_cap(DMA_XOR, dma_dev->cap_mask) ? "xor " : "",
|
||||
dma_has_cap(DMA_XOR_VAL, dma_dev->cap_mask) ? "xor_val " : "",
|
||||
dma_has_cap(DMA_MEMSET, dma_dev->cap_mask) ? "fill " : "",
|
||||
dma_has_cap(DMA_MEMCPY, dma_dev->cap_mask) ? "cpy " : "",
|
||||
dma_has_cap(DMA_INTERRUPT, dma_dev->cap_mask) ? "intr " : "");
|
||||
|
||||
|
||||
@ -89,11 +89,6 @@ static void mv_desc_clear_next_desc(struct mv_xor_desc_slot *desc)
|
||||
hw_desc->phy_next_desc = 0;
|
||||
}
|
||||
|
||||
static void mv_desc_set_block_fill_val(struct mv_xor_desc_slot *desc, u32 val)
|
||||
{
|
||||
desc->value = val;
|
||||
}
|
||||
|
||||
static void mv_desc_set_dest_addr(struct mv_xor_desc_slot *desc,
|
||||
dma_addr_t addr)
|
||||
{
|
||||
@ -128,22 +123,6 @@ static void mv_chan_set_next_descriptor(struct mv_xor_chan *chan,
|
||||
__raw_writel(next_desc_addr, XOR_NEXT_DESC(chan));
|
||||
}
|
||||
|
||||
static void mv_chan_set_dest_pointer(struct mv_xor_chan *chan, u32 desc_addr)
|
||||
{
|
||||
__raw_writel(desc_addr, XOR_DEST_POINTER(chan));
|
||||
}
|
||||
|
||||
static void mv_chan_set_block_size(struct mv_xor_chan *chan, u32 block_size)
|
||||
{
|
||||
__raw_writel(block_size, XOR_BLOCK_SIZE(chan));
|
||||
}
|
||||
|
||||
static void mv_chan_set_value(struct mv_xor_chan *chan, u32 value)
|
||||
{
|
||||
__raw_writel(value, XOR_INIT_VALUE_LOW(chan));
|
||||
__raw_writel(value, XOR_INIT_VALUE_HIGH(chan));
|
||||
}
|
||||
|
||||
static void mv_chan_unmask_interrupts(struct mv_xor_chan *chan)
|
||||
{
|
||||
u32 val = __raw_readl(XOR_INTR_MASK(chan));
|
||||
@ -186,8 +165,6 @@ static int mv_can_chain(struct mv_xor_desc_slot *desc)
|
||||
|
||||
if (chain_old_tail->type != desc->type)
|
||||
return 0;
|
||||
if (desc->type == DMA_MEMSET)
|
||||
return 0;
|
||||
|
||||
return 1;
|
||||
}
|
||||
@ -205,9 +182,6 @@ static void mv_set_mode(struct mv_xor_chan *chan,
|
||||
case DMA_MEMCPY:
|
||||
op_mode = XOR_OPERATION_MODE_MEMCPY;
|
||||
break;
|
||||
case DMA_MEMSET:
|
||||
op_mode = XOR_OPERATION_MODE_MEMSET;
|
||||
break;
|
||||
default:
|
||||
dev_err(mv_chan_to_devp(chan),
|
||||
"error: unsupported operation %d\n",
|
||||
@ -274,18 +248,9 @@ static void mv_xor_start_new_chain(struct mv_xor_chan *mv_chan,
|
||||
if (sw_desc->type != mv_chan->current_type)
|
||||
mv_set_mode(mv_chan, sw_desc->type);
|
||||
|
||||
if (sw_desc->type == DMA_MEMSET) {
|
||||
/* for memset requests we need to program the engine, no
|
||||
* descriptors used.
|
||||
*/
|
||||
struct mv_xor_desc *hw_desc = sw_desc->hw_desc;
|
||||
mv_chan_set_dest_pointer(mv_chan, hw_desc->phy_dest_addr);
|
||||
mv_chan_set_block_size(mv_chan, sw_desc->unmap_len);
|
||||
mv_chan_set_value(mv_chan, sw_desc->value);
|
||||
} else {
|
||||
/* set the hardware chain */
|
||||
mv_chan_set_next_descriptor(mv_chan, sw_desc->async_tx.phys);
|
||||
}
|
||||
/* set the hardware chain */
|
||||
mv_chan_set_next_descriptor(mv_chan, sw_desc->async_tx.phys);
|
||||
|
||||
mv_chan->pending += sw_desc->slot_cnt;
|
||||
mv_xor_issue_pending(&mv_chan->dmachan);
|
||||
}
|
||||
@ -687,43 +652,6 @@ mv_xor_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src,
|
||||
return sw_desc ? &sw_desc->async_tx : NULL;
|
||||
}
|
||||
|
||||
static struct dma_async_tx_descriptor *
|
||||
mv_xor_prep_dma_memset(struct dma_chan *chan, dma_addr_t dest, int value,
|
||||
size_t len, unsigned long flags)
|
||||
{
|
||||
struct mv_xor_chan *mv_chan = to_mv_xor_chan(chan);
|
||||
struct mv_xor_desc_slot *sw_desc, *grp_start;
|
||||
int slot_cnt;
|
||||
|
||||
dev_dbg(mv_chan_to_devp(mv_chan),
|
||||
"%s dest: %x len: %u flags: %ld\n",
|
||||
__func__, dest, len, flags);
|
||||
if (unlikely(len < MV_XOR_MIN_BYTE_COUNT))
|
||||
return NULL;
|
||||
|
||||
BUG_ON(len > MV_XOR_MAX_BYTE_COUNT);
|
||||
|
||||
spin_lock_bh(&mv_chan->lock);
|
||||
slot_cnt = mv_chan_memset_slot_count(len);
|
||||
sw_desc = mv_xor_alloc_slots(mv_chan, slot_cnt, 1);
|
||||
if (sw_desc) {
|
||||
sw_desc->type = DMA_MEMSET;
|
||||
sw_desc->async_tx.flags = flags;
|
||||
grp_start = sw_desc->group_head;
|
||||
mv_desc_init(grp_start, flags);
|
||||
mv_desc_set_byte_count(grp_start, len);
|
||||
mv_desc_set_dest_addr(sw_desc->group_head, dest);
|
||||
mv_desc_set_block_fill_val(grp_start, value);
|
||||
sw_desc->unmap_src_cnt = 1;
|
||||
sw_desc->unmap_len = len;
|
||||
}
|
||||
spin_unlock_bh(&mv_chan->lock);
|
||||
dev_dbg(mv_chan_to_devp(mv_chan),
|
||||
"%s sw_desc %p async_tx %p \n",
|
||||
__func__, sw_desc, &sw_desc->async_tx);
|
||||
return sw_desc ? &sw_desc->async_tx : NULL;
|
||||
}
|
||||
|
||||
static struct dma_async_tx_descriptor *
|
||||
mv_xor_prep_dma_xor(struct dma_chan *chan, dma_addr_t dest, dma_addr_t *src,
|
||||
unsigned int src_cnt, size_t len, unsigned long flags)
|
||||
@ -1137,8 +1065,6 @@ mv_xor_channel_add(struct mv_xor_device *xordev,
|
||||
/* set prep routines based on capability */
|
||||
if (dma_has_cap(DMA_MEMCPY, dma_dev->cap_mask))
|
||||
dma_dev->device_prep_dma_memcpy = mv_xor_prep_dma_memcpy;
|
||||
if (dma_has_cap(DMA_MEMSET, dma_dev->cap_mask))
|
||||
dma_dev->device_prep_dma_memset = mv_xor_prep_dma_memset;
|
||||
if (dma_has_cap(DMA_XOR, dma_dev->cap_mask)) {
|
||||
dma_dev->max_xor = 8;
|
||||
dma_dev->device_prep_dma_xor = mv_xor_prep_dma_xor;
|
||||
@ -1187,9 +1113,8 @@ mv_xor_channel_add(struct mv_xor_device *xordev,
|
||||
goto err_free_irq;
|
||||
}
|
||||
|
||||
dev_info(&pdev->dev, "Marvell XOR: ( %s%s%s%s)\n",
|
||||
dev_info(&pdev->dev, "Marvell XOR: ( %s%s%s)\n",
|
||||
dma_has_cap(DMA_XOR, dma_dev->cap_mask) ? "xor " : "",
|
||||
dma_has_cap(DMA_MEMSET, dma_dev->cap_mask) ? "fill " : "",
|
||||
dma_has_cap(DMA_MEMCPY, dma_dev->cap_mask) ? "cpy " : "",
|
||||
dma_has_cap(DMA_INTERRUPT, dma_dev->cap_mask) ? "intr " : "");
|
||||
|
||||
@ -1298,8 +1223,6 @@ static int mv_xor_probe(struct platform_device *pdev)
|
||||
dma_cap_set(DMA_MEMCPY, cap_mask);
|
||||
if (of_property_read_bool(np, "dmacap,xor"))
|
||||
dma_cap_set(DMA_XOR, cap_mask);
|
||||
if (of_property_read_bool(np, "dmacap,memset"))
|
||||
dma_cap_set(DMA_MEMSET, cap_mask);
|
||||
if (of_property_read_bool(np, "dmacap,interrupt"))
|
||||
dma_cap_set(DMA_INTERRUPT, cap_mask);
|
||||
|
||||
|
||||
@ -31,7 +31,6 @@
|
||||
|
||||
#define XOR_OPERATION_MODE_XOR 0
|
||||
#define XOR_OPERATION_MODE_MEMCPY 2
|
||||
#define XOR_OPERATION_MODE_MEMSET 4
|
||||
|
||||
#define XOR_CURR_DESC(chan) (chan->mmr_base + 0x210 + (chan->idx * 4))
|
||||
#define XOR_NEXT_DESC(chan) (chan->mmr_base + 0x200 + (chan->idx * 4))
|
||||
|
||||
@ -2322,47 +2322,6 @@ static struct dma_async_tx_descriptor *ppc440spe_adma_prep_dma_memcpy(
|
||||
return sw_desc ? &sw_desc->async_tx : NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* ppc440spe_adma_prep_dma_memset - prepare CDB for a MEMSET operation
|
||||
*/
|
||||
static struct dma_async_tx_descriptor *ppc440spe_adma_prep_dma_memset(
|
||||
struct dma_chan *chan, dma_addr_t dma_dest, int value,
|
||||
size_t len, unsigned long flags)
|
||||
{
|
||||
struct ppc440spe_adma_chan *ppc440spe_chan;
|
||||
struct ppc440spe_adma_desc_slot *sw_desc, *group_start;
|
||||
int slot_cnt, slots_per_op;
|
||||
|
||||
ppc440spe_chan = to_ppc440spe_adma_chan(chan);
|
||||
|
||||
if (unlikely(!len))
|
||||
return NULL;
|
||||
|
||||
BUG_ON(len > PPC440SPE_ADMA_DMA_MAX_BYTE_COUNT);
|
||||
|
||||
spin_lock_bh(&ppc440spe_chan->lock);
|
||||
|
||||
dev_dbg(ppc440spe_chan->device->common.dev,
|
||||
"ppc440spe adma%d: %s cal: %u len: %u int_en %d\n",
|
||||
ppc440spe_chan->device->id, __func__, value, len,
|
||||
flags & DMA_PREP_INTERRUPT ? 1 : 0);
|
||||
|
||||
slot_cnt = slots_per_op = 1;
|
||||
sw_desc = ppc440spe_adma_alloc_slots(ppc440spe_chan, slot_cnt,
|
||||
slots_per_op);
|
||||
if (sw_desc) {
|
||||
group_start = sw_desc->group_head;
|
||||
ppc440spe_desc_init_memset(group_start, value, flags);
|
||||
ppc440spe_adma_set_dest(group_start, dma_dest, 0);
|
||||
ppc440spe_desc_set_byte_count(group_start, ppc440spe_chan, len);
|
||||
sw_desc->unmap_len = len;
|
||||
sw_desc->async_tx.flags = flags;
|
||||
}
|
||||
spin_unlock_bh(&ppc440spe_chan->lock);
|
||||
|
||||
return sw_desc ? &sw_desc->async_tx : NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* ppc440spe_adma_prep_dma_xor - prepare CDB for a XOR operation
|
||||
*/
|
||||
@ -4125,7 +4084,6 @@ static void ppc440spe_adma_init_capabilities(struct ppc440spe_adma_device *adev)
|
||||
case PPC440SPE_DMA1_ID:
|
||||
dma_cap_set(DMA_MEMCPY, adev->common.cap_mask);
|
||||
dma_cap_set(DMA_INTERRUPT, adev->common.cap_mask);
|
||||
dma_cap_set(DMA_MEMSET, adev->common.cap_mask);
|
||||
dma_cap_set(DMA_PQ, adev->common.cap_mask);
|
||||
dma_cap_set(DMA_PQ_VAL, adev->common.cap_mask);
|
||||
dma_cap_set(DMA_XOR_VAL, adev->common.cap_mask);
|
||||
@ -4151,10 +4109,6 @@ static void ppc440spe_adma_init_capabilities(struct ppc440spe_adma_device *adev)
|
||||
adev->common.device_prep_dma_memcpy =
|
||||
ppc440spe_adma_prep_dma_memcpy;
|
||||
}
|
||||
if (dma_has_cap(DMA_MEMSET, adev->common.cap_mask)) {
|
||||
adev->common.device_prep_dma_memset =
|
||||
ppc440spe_adma_prep_dma_memset;
|
||||
}
|
||||
if (dma_has_cap(DMA_XOR, adev->common.cap_mask)) {
|
||||
adev->common.max_xor = XOR_MAX_OPS;
|
||||
adev->common.device_prep_dma_xor =
|
||||
@ -4217,7 +4171,6 @@ static void ppc440spe_adma_init_capabilities(struct ppc440spe_adma_device *adev)
|
||||
dma_has_cap(DMA_XOR, adev->common.cap_mask) ? "xor " : "",
|
||||
dma_has_cap(DMA_XOR_VAL, adev->common.cap_mask) ? "xor_val " : "",
|
||||
dma_has_cap(DMA_MEMCPY, adev->common.cap_mask) ? "memcpy " : "",
|
||||
dma_has_cap(DMA_MEMSET, adev->common.cap_mask) ? "memset " : "",
|
||||
dma_has_cap(DMA_INTERRUPT, adev->common.cap_mask) ? "intr " : "");
|
||||
}
|
||||
|
||||
|
||||
@ -182,10 +182,6 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset,
|
||||
unsigned int src_offset, size_t len,
|
||||
struct async_submit_ctl *submit);
|
||||
|
||||
struct dma_async_tx_descriptor *
|
||||
async_memset(struct page *dest, int val, unsigned int offset,
|
||||
size_t len, struct async_submit_ctl *submit);
|
||||
|
||||
struct dma_async_tx_descriptor *async_trigger_callback(struct async_submit_ctl *submit);
|
||||
|
||||
struct dma_async_tx_descriptor *
|
||||
|
||||
@ -66,7 +66,6 @@ enum dma_transaction_type {
|
||||
DMA_PQ,
|
||||
DMA_XOR_VAL,
|
||||
DMA_PQ_VAL,
|
||||
DMA_MEMSET,
|
||||
DMA_INTERRUPT,
|
||||
DMA_SG,
|
||||
DMA_PRIVATE,
|
||||
@ -520,7 +519,6 @@ struct dma_tx_state {
|
||||
* @device_prep_dma_xor_val: prepares a xor validation operation
|
||||
* @device_prep_dma_pq: prepares a pq operation
|
||||
* @device_prep_dma_pq_val: prepares a pqzero_sum operation
|
||||
* @device_prep_dma_memset: prepares a memset operation
|
||||
* @device_prep_dma_interrupt: prepares an end of chain interrupt operation
|
||||
* @device_prep_slave_sg: prepares a slave dma operation
|
||||
* @device_prep_dma_cyclic: prepare a cyclic dma operation suitable for audio.
|
||||
@ -573,9 +571,6 @@ struct dma_device {
|
||||
struct dma_chan *chan, dma_addr_t *pq, dma_addr_t *src,
|
||||
unsigned int src_cnt, const unsigned char *scf, size_t len,
|
||||
enum sum_check_flags *pqres, unsigned long flags);
|
||||
struct dma_async_tx_descriptor *(*device_prep_dma_memset)(
|
||||
struct dma_chan *chan, dma_addr_t dest, int value, size_t len,
|
||||
unsigned long flags);
|
||||
struct dma_async_tx_descriptor *(*device_prep_dma_interrupt)(
|
||||
struct dma_chan *chan, unsigned long flags);
|
||||
struct dma_async_tx_descriptor *(*device_prep_dma_sg)(
|
||||
|
||||
Loading…
Reference in New Issue
Block a user