From: Shunsuke Mie <mie@igel.co.jp>
To: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: "Vinod Koul" <vkoul@kernel.org>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Manivannan Sadhasivam" <mani@kernel.org>,
"Kishon Vijay Abraham I" <kishon@kernel.org>,
"Arnd Bergmann" <arnd@arndb.de>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Shunsuke Mie" <mie@igel.co.jp>,
"Kunihiko Hayashi" <hayashi.kunihiko@socionext.com>,
"Yoshihiro Shimoda" <yoshihiro.shimoda.uh@renesas.com>,
"Frank Li" <Frank.Li@nxp.com>,
linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org,
linux-pci@vger.kernel.org
Subject: [RFC PATCH 11/11] dmaengine: dw-edma: Fix to enable to issue dma request on DMA processing
Date: Fri, 17 Mar 2023 20:32:38 +0900 [thread overview]
Message-ID: <20230317113238.142970-12-mie@igel.co.jp> (raw)
In-Reply-To: <20230317113238.142970-1-mie@igel.co.jp>
The issue_pending request is ignored while driver is processing a DMA
request. Fix to issue the pending requests on any dma channel status.
Fixes: e63d79d1ffcd ("dmaengine: Add Synopsys eDMA IP core driver")
Signed-off-by: Shunsuke Mie <mie@igel.co.jp>
---
drivers/dma/dw-edma/dw-edma-core.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/dma/dw-edma/dw-edma-core.c b/drivers/dma/dw-edma/dw-edma-core.c
index c527af00ff4e..430f9ee0d9e8 100644
--- a/drivers/dma/dw-edma/dw-edma-core.c
+++ b/drivers/dma/dw-edma/dw-edma-core.c
@@ -308,9 +308,12 @@ static void dw_edma_device_issue_pending(struct dma_chan *dchan)
struct dw_edma_chan *chan = dchan2dw_edma_chan(dchan);
unsigned long flags;
+ if (!chan->configured)
+ return;
+
spin_lock_irqsave(&chan->vc.lock, flags);
- if (chan->configured && chan->request == EDMA_REQ_NONE &&
- chan->status == EDMA_ST_IDLE && vchan_issue_pending(&chan->vc)) {
+ if (vchan_issue_pending(&chan->vc) && chan->request == EDMA_REQ_NONE &&
+ chan->status == EDMA_ST_IDLE) {
chan->status = EDMA_ST_BUSY;
dw_edma_start_transfer(chan);
}
--
2.25.1
next prev parent reply other threads:[~2023-03-17 11:34 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-17 11:32 [RFC PATCH 00/11] Introduce a test for continuous transfer Shunsuke Mie
2023-03-17 11:32 ` [RFC PATCH 01/11] misc: pci_endpoint_test: Aggregate irq_type checking Shunsuke Mie
2023-03-17 11:32 ` [RFC PATCH 02/11] misc: pci_endpoint_test: Remove an unused variable Shunsuke Mie
2023-03-17 11:32 ` [RFC PATCH 03/11] pci: endpoint: function/pci-epf-test: Unify a range of time measurement Shunsuke Mie
2023-03-17 11:32 ` [RFC PATCH 04/11] PCI: endpoint: functions/pci-epf-test: Move common difinitions to header file Shunsuke Mie
2023-03-17 11:32 ` [RFC PATCH 05/11] MAINTAINERS: Add a header file for pci-epf-test Shunsuke Mie
2023-03-17 11:32 ` [RFC PATCH 06/11] misc: pci_endpoint_test: Use a common header file between endpoint driver Shunsuke Mie
2023-03-17 14:47 ` [EXT] " Frank Li
2023-04-04 10:11 ` Shunsuke Mie
2023-03-17 11:32 ` [RFC PATCH 07/11] PCI: endpoint: functions/pci-epf-test: Extend the test for continuous transfers Shunsuke Mie
2023-03-17 11:32 ` [RFC PATCH 08/11] misc: pci_endpoint_test: Support a test of continuous transfer Shunsuke Mie
2023-03-17 11:32 ` [RFC PATCH 09/11] tools: PCI: Add 'C' option to support " Shunsuke Mie
2023-03-17 11:32 ` [RFC PATCH 10/11] dmaengine: dw-edma: Fix to change for " Shunsuke Mie
2023-03-17 11:32 ` Shunsuke Mie [this message]
2023-03-31 5:38 ` [RFC PATCH 00/11] Introduce a test " Manivannan Sadhasivam
2023-04-04 9:57 ` Shunsuke Mie
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