From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758103Ab3BSCAB (ORCPT ); Mon, 18 Feb 2013 21:00:01 -0500 Received: from mailout3.samsung.com ([203.254.224.33]:22809 "EHLO mailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758024Ab3BSB77 (ORCPT ); Mon, 18 Feb 2013 20:59:59 -0500 X-AuditID: cbfee68f-b7f656d000000d78-34-5122dc9e2f58 From: Boojin Kim To: linux-kernel@vger.kernel.org Cc: "'Dan Williams'" , "'Vinod Koul'" , "'Jaswinder Singh'" , "'Russell King'" Subject: [PATCH 1/2] dma: pl330: support burst mode for dev-to-mem and mem-to-dev transmit Date: Tue, 19 Feb 2013 10:59:57 +0900 Message-id: <00ea01ce0e44$d1a9e360$74fdaa20$%kim@samsung.com> X-Mailer: Microsoft Office Outlook 12.0 Thread-index: Ac4ORNEloL6pleRKSRCwKBmaENW5Ew== Content-language: ko X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrPLMWRmVeSWpSXmKPExsVy+t8zY915d5QCDRa/Fbe4vGsOmwOjx+dN cgGMUVw2Kak5mWWpRfp2CVwZhxZcZi64zFcxaStXA+Mf7i5GTg4JAROJ17ceskHYYhIX7q0H srk4hASWMUp8ePCEFaZozuF7jBCJRYwS64/eZ4Jw5jFJrJz+gQmkik1AU2LG9+nsILaIgILE 5t5nrCBFzALzGCU+P/oHlhAWiJG482YeC4jNIqAqcXvyfbDdvAK2Emd7eoFsDqB16hKP/upC zNGT2H1tAlgrs4CIxL4X7xghLrrOJvFylQHEGAGJb5MPsUC0ykpsOsAMUSIpcXDFDZYJjMKz kHQvYGRcxSiaWpBcUJyUXmSsV5yYW1yal66XnJ+7iRESmP07GO8esD7EmAw0eiKzlGhyPjCw 80riDY2NTcxMTE3MLU3NTUkTVhLnlb8kEygkkJ5YkpqdmlqQWhRfVJqTWnyIkYmDU6qBUWFf +eIHGf83s5nFrpJQjyl9dtvBm1vj8wvZzX6iRrXR8/c7TLuht0B6emHFl3epUh2unqVs13de YF+neUMiqCY5JW7JSvOo1NzTQX+UO6ZdW/Foi2+wFYfp174PDoq16qubI5kZ9XfLvlwkWsG/ x2bXnt/dKwslL0kkeZfF/ayQDtnH0X1SiaU4I9FQi7moOBEAwTFmxGICAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrLIsWRmVeSWpSXmKPExsVy+t9jAd15d5QCDbZOELG4vGsOmwOjx+dN cgGMUQ2MNhmpiSmpRQqpecn5KZl56bZK3sHxzvGmZgaGuoaWFuZKCnmJuam2Si4+AbpumTlA U5UUyhJzSoFCAYnFxUr6dpgmhIa46VrANEbo+oYEwfUYGaCBhHWMGYcWXGYuuMxXMWkrVwPj H+4uRk4OCQETiTmH7zFC2GISF+6tZ+ti5OIQEljEKLH+6H0mCGcek8TK6R+YQKrYBDQlZnyf zg5iiwgoSGzufcYKUsQsMI9R4vOjf2AJYYEYiTtv5rGA2CwCqhK3J99nA7F5BWwlzvb0Atkc QOvUJR791YWYoyex+9oEsFZmARGJfS/eMU5g5J2FxF3AyLiKUTS1ILmgOCk910ivODG3uDQv XS85P3cTIzjwn0nvYFzVYHGIUYCDUYmH94OjUqAQa2JZcWXuIUYJDmYlEd6OdqAQb0piZVVq UX58UWlOavEhxmSgAycyS4km5wOjMq8k3tDYxMzI0sjMwsjE3Jw0YSVxXsZTTwKEBNITS1Kz U1MLUotgtjBxcEo1ME79tHT5+QOiR6e0Tz0jFBsRf4n3nnRe88VGh2XfnqlKc1XU9SYnHug3 +fSd+fkWrcu5Gy47Jt5nXBH4eVdK5p8JHf7rgr35zVs2yxzNaG1g2P2pordxyf2Vbe63Smsa 5tjGbBRwiZyh3fYm76WzZe6sI5mrzVWX2xuEyDZOm/ImP7lpf4epgRJLcUaioRZzUXEiACHO x5TAAgAA DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds to support burst mode for dev-to-mem and mem-to-dev transmit Signed-off-by: Boojin Kim --- drivers/dma/pl330.c | 12 +++++++----- 1 files changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 80680ee..a070160 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -1271,10 +1271,11 @@ static inline int _ldst_devtomem(unsigned dry_run, u8 buf[], const struct _xfer_spec *pxs, int cyc) { int off = 0; + enum pl330_cond cond = (pxs->r->cfg->brst_size == 1) ? SINGLE : BURST; while (cyc--) { - off += _emit_WFP(dry_run, &buf[off], SINGLE, pxs->r->peri); - off += _emit_LDP(dry_run, &buf[off], SINGLE, pxs->r->peri); + off += _emit_WFP(dry_run, &buf[off], cond, pxs->r->peri); + off += _emit_LDP(dry_run, &buf[off], cond, pxs->r->peri); off += _emit_ST(dry_run, &buf[off], ALWAYS); off += _emit_FLUSHP(dry_run, &buf[off], pxs->r->peri); } @@ -1286,11 +1287,12 @@ static inline int _ldst_memtodev(unsigned dry_run, u8 buf[], const struct _xfer_spec *pxs, int cyc) { int off = 0; + enum pl330_cond cond = (pxs->r->cfg->brst_size == 1) ? SINGLE : BURST; while (cyc--) { - off += _emit_WFP(dry_run, &buf[off], SINGLE, pxs->r->peri); + off += _emit_WFP(dry_run, &buf[off], cond, pxs->r->peri); off += _emit_LD(dry_run, &buf[off], ALWAYS); - off += _emit_STP(dry_run, &buf[off], SINGLE, pxs->r->peri); + off += _emit_STP(dry_run, &buf[off], cond, pxs->r->peri); off += _emit_FLUSHP(dry_run, &buf[off], pxs->r->peri); } @@ -2835,7 +2837,7 @@ pl330_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, } desc->rqcfg.brst_size = pch->burst_sz; - desc->rqcfg.brst_len = 1; + desc->rqcfg.brst_len = pch->burst_len; } /* Return the last desc in the chain */ -- 1.7.5.4