Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753012AbXLVBH5 (ORCPT ); Fri, 21 Dec 2007 20:07:57 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751824AbXLVBHZ (ORCPT ); Fri, 21 Dec 2007 20:07:25 -0500 Received: from mga02.intel.com ([134.134.136.20]:31049 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751429AbXLVBHT (ORCPT ); Fri, 21 Dec 2007 20:07:19 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.24,197,1196668800"; d="scan'208";a="244394880" From: Dan Williams Subject: [PATCH 4/4] async_tx: allow architecture specific async_tx_find_channel implementations To: linux-kernel@vger.kernel.org Cc: shannon.nelson@intel.com, yur@emcraft.com, hskinnemoen@atmel.com, olof@lixom.net, wei.zhang@freescale.com Date: Fri, 21 Dec 2007 18:06:58 -0700 Message-ID: <20071222010658.15576.59469.stgit@dwillia2-linux.ch.intel.com> In-Reply-To: <20071222010537.15576.31788.stgit@dwillia2-linux.ch.intel.com> References: <20071222010537.15576.31788.stgit@dwillia2-linux.ch.intel.com> User-Agent: StGIT/0.13 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5424 Lines: 133 The source and destination addresses are included to allow channel selection based on address alignment. Signed-off-by: Dan Williams --- crypto/async_tx/async_memcpy.c | 3 ++- crypto/async_tx/async_memset.c | 3 ++- crypto/async_tx/async_tx.c | 6 +++--- crypto/async_tx/async_xor.c | 8 ++++++-- include/linux/async_tx.h | 11 +++++++++-- 5 files changed, 22 insertions(+), 9 deletions(-) diff --git a/crypto/async_tx/async_memcpy.c b/crypto/async_tx/async_memcpy.c index 25dcf33..0f62822 100644 --- a/crypto/async_tx/async_memcpy.c +++ b/crypto/async_tx/async_memcpy.c @@ -46,7 +46,8 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset, struct dma_async_tx_descriptor *depend_tx, dma_async_tx_callback cb_fn, void *cb_param) { - struct dma_chan *chan = async_tx_find_channel(depend_tx, DMA_MEMCPY); + struct dma_chan *chan = async_tx_find_channel(depend_tx, DMA_MEMCPY, + &dest, 1, &src, 1, len); struct dma_device *device = chan ? chan->device : NULL; struct dma_async_tx_descriptor *tx = NULL; diff --git a/crypto/async_tx/async_memset.c b/crypto/async_tx/async_memset.c index 8e98ab0..09c0e83 100644 --- a/crypto/async_tx/async_memset.c +++ b/crypto/async_tx/async_memset.c @@ -46,7 +46,8 @@ async_memset(struct page *dest, int val, unsigned int offset, struct dma_async_tx_descriptor *depend_tx, dma_async_tx_callback cb_fn, void *cb_param) { - struct dma_chan *chan = async_tx_find_channel(depend_tx, DMA_MEMSET); + struct dma_chan *chan = async_tx_find_channel(depend_tx, DMA_MEMSET, + &dest, 1, NULL, 0, len); struct dma_device *device = chan ? chan->device : NULL; struct dma_async_tx_descriptor *tx = NULL; diff --git a/crypto/async_tx/async_tx.c b/crypto/async_tx/async_tx.c index f39777f..5628821 100644 --- a/crypto/async_tx/async_tx.c +++ b/crypto/async_tx/async_tx.c @@ -361,13 +361,13 @@ static void __exit async_tx_exit(void) } /** - * async_tx_find_channel - find a channel to carry out the operation or let + * __async_tx_find_channel - find a channel to carry out the operation or let * the transaction execute synchronously * @depend_tx: transaction dependency * @tx_type: transaction type */ struct dma_chan * -async_tx_find_channel(struct dma_async_tx_descriptor *depend_tx, +__async_tx_find_channel(struct dma_async_tx_descriptor *depend_tx, enum dma_transaction_type tx_type) { /* see if we can keep the chain on one channel */ @@ -383,7 +383,7 @@ async_tx_find_channel(struct dma_async_tx_descriptor *depend_tx, } else return NULL; } -EXPORT_SYMBOL_GPL(async_tx_find_channel); +EXPORT_SYMBOL_GPL(__async_tx_find_channel); #else static int __init async_tx_init(void) { diff --git a/crypto/async_tx/async_xor.c b/crypto/async_tx/async_xor.c index 80f30bc..e6dfacc 100644 --- a/crypto/async_tx/async_xor.c +++ b/crypto/async_tx/async_xor.c @@ -125,7 +125,9 @@ async_xor(struct page *dest, struct page **src_list, unsigned int offset, struct dma_async_tx_descriptor *depend_tx, dma_async_tx_callback cb_fn, void *cb_param) { - struct dma_chan *chan = async_tx_find_channel(depend_tx, DMA_XOR); + struct dma_chan *chan = async_tx_find_channel(depend_tx, DMA_XOR, + &dest, 1, src_list, + src_cnt, len); struct dma_device *device = chan ? chan->device : NULL; struct dma_async_tx_descriptor *tx = NULL; dma_async_tx_callback _cb_fn; @@ -257,7 +259,9 @@ async_xor_zero_sum(struct page *dest, struct page **src_list, struct dma_async_tx_descriptor *depend_tx, dma_async_tx_callback cb_fn, void *cb_param) { - struct dma_chan *chan = async_tx_find_channel(depend_tx, DMA_ZERO_SUM); + struct dma_chan *chan = async_tx_find_channel(depend_tx, DMA_ZERO_SUM, + &dest, 1, src_list, + src_cnt, len); struct dma_device *device = chan ? chan->device : NULL; struct dma_async_tx_descriptor *tx = NULL; diff --git a/include/linux/async_tx.h b/include/linux/async_tx.h index 3d59d37..eb640f0 100644 --- a/include/linux/async_tx.h +++ b/include/linux/async_tx.h @@ -62,9 +62,15 @@ enum async_tx_flags { void async_tx_issue_pending_all(void); enum dma_status dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx); void async_tx_run_dependencies(struct dma_async_tx_descriptor *tx); +#ifdef CONFIG_ARCH_HAS_ASYNC_TX_FIND_CHANNEL +#include +#else +#define async_tx_find_channel(dep, type, dst, dst_count, src, src_count, len) \ + __async_tx_find_channel(dep, type) struct dma_chan * -async_tx_find_channel(struct dma_async_tx_descriptor *depend_tx, +__async_tx_find_channel(struct dma_async_tx_descriptor *depend_tx, enum dma_transaction_type tx_type); +#endif /* CONFIG_ARCH_HAS_ASYNC_TX_FIND_CHANNEL */ #else static inline void async_tx_issue_pending_all(void) { @@ -86,7 +92,8 @@ async_tx_run_dependencies(struct dma_async_tx_descriptor *tx, static inline struct dma_chan * async_tx_find_channel(struct dma_async_tx_descriptor *depend_tx, - enum dma_transaction_type tx_type) + enum dma_transaction_type tx_type, struct page **dst, int dst_count, + struct page **src, int src_count, size_t len) { return NULL; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/