From: Albert Lee <albertcc@tw.ibm.com>
To: Jeff Garzik <jeff@garzik.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, Tejun Heo <htejun@gmail.com>,
Linux IDE <linux-ide@vger.kernel.org>,
Doug Maxey <dwm@enoyolf.org>, Mikael Pettersson <mikpe@it.uu.se>
Subject: [PATCH 7/10] libata: pdc_freeze() semantic change
Date: Wed, 04 Jul 2007 17:01:46 +0800 [thread overview]
Message-ID: <468B61FA.6050900@tw.ibm.com> (raw)
In-Reply-To: <468B5C97.1000803@tw.ibm.com>
Patch 7/10:
After checking the current implementations of freeze()/thaw(), it seems only pdc_freeze()
do more than simple irq masking. Remove the DMA stop code from pdc_freeze().
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
---
diff -Nrup 06_add_freeze_thaw_to_lldd/drivers/ata/sata_promise.c 07_sata_promise_freeze/drivers/ata/sata_promise.c
--- 06_add_freeze_thaw_to_lldd/drivers/ata/sata_promise.c 2007-07-04 12:09:29.000000000 +0800
+++ 07_sata_promise_freeze/drivers/ata/sata_promise.c 2007-07-04 13:17:59.000000000 +0800
@@ -581,7 +581,6 @@ static void pdc_freeze(struct ata_port *
tmp = readl(mmio + PDC_CTLSTAT);
tmp |= PDC_IRQ_DISABLE;
- tmp &= ~PDC_DMA_ENABLE;
writel(tmp, mmio + PDC_CTLSTAT);
readl(mmio + PDC_CTLSTAT); /* flush */
}
next prev parent reply other threads:[~2007-07-04 9:01 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-04 8:38 [PATCH 0/10] libata: irq_on/off restructuring Albert Lee
2007-07-04 8:43 ` [PATCH 1/10] libata: remove irq_on from ata_bus_reset() and ata_std_postreset() Albert Lee
2007-07-05 10:18 ` Tejun Heo
2007-07-04 8:46 ` [PATCH 2/10] libata: add irq_off Albert Lee
2007-07-04 8:49 ` [PATCH 3/10] libata: implement ->irq_off in LLDDs Albert Lee
2007-07-04 8:52 ` [PATCH 4/10] libata: call irq_off from bmdma_freeze() Albert Lee
2007-07-04 8:57 ` [PATCH 5/10] libata: use freeze/thaw for polling Albert Lee
2007-07-04 8:59 ` [PATCH 6/10] libata: add freeze/thaw to old EH LLDDs Albert Lee
2007-07-04 9:01 ` Albert Lee [this message]
2007-07-04 9:03 ` [PATCH 8/10] libata: remove writing of tf->ctl from ata_tf_load() Albert Lee
2007-07-04 19:09 ` Mark Lord
2007-07-05 2:43 ` Albert Lee
2007-07-05 10:40 ` Tejun Heo
2007-07-04 9:16 ` [PATCH 9/10] libata: Integrate freeze/thaw with irq_on/off Albert Lee
2007-07-04 9:29 ` [PATCH 10/10] libata: Integrate freeze/thaw with irq_on/off in LLDDs Albert Lee
2007-07-05 10:48 ` [PATCH 0/10] libata: irq_on/off restructuring Tejun Heo
2007-07-06 9:23 ` Albert Lee
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