From: Peter Ujfalusi <peter.ujfalusi@ti.com>
To: <vkoul@kernel.org>, <robh+dt@kernel.org>
Cc: <dan.j.williams@intel.com>, <dmaengine@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-omap@vger.kernel.org>
Subject: [PATCH 1/5] dmaengine: ti: edma: Do not reset reserved paRAM slots
Date: Fri, 23 Aug 2019 15:56:14 +0300 [thread overview]
Message-ID: <20190823125618.8133-2-peter.ujfalusi@ti.com> (raw)
In-Reply-To: <20190823125618.8133-1-peter.ujfalusi@ti.com>
Skip resetting paRAM slots marked as reserved as they might be used by
other cores.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
---
drivers/dma/ti/edma.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/dma/ti/edma.c b/drivers/dma/ti/edma.c
index 54895112ba59..1aae95cc0d4b 100644
--- a/drivers/dma/ti/edma.c
+++ b/drivers/dma/ti/edma.c
@@ -2338,9 +2338,6 @@ static int edma_probe(struct platform_device *pdev)
ecc->default_queue = info->default_queue;
- for (i = 0; i < ecc->num_slots; i++)
- edma_write_slot(ecc, i, &dummy_paramset);
-
if (info->rsv) {
/* Set the reserved slots in inuse list */
rsv_slots = info->rsv->rsv_slots;
@@ -2353,6 +2350,12 @@ static int edma_probe(struct platform_device *pdev)
}
}
+ for (i = 0; i < ecc->num_slots; i++) {
+ /* Reset only unused - not reserved - paRAM slots */
+ if (!test_bit(i, ecc->slot_inuse))
+ edma_write_slot(ecc, i, &dummy_paramset);
+ }
+
/* Clear the xbar mapped channels in unused list */
xbar_chans = info->xbar_chans;
if (xbar_chans) {
--
Peter
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
next prev parent reply other threads:[~2019-08-23 12:56 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-23 12:56 [PATCH 0/5] dmaengine: ti: edma: Multicore usage related fixes Peter Ujfalusi
2019-08-23 12:56 ` Peter Ujfalusi [this message]
2019-08-23 12:56 ` [PATCH 2/5] dmaengine: ti: edma: Only reset region0 access registers Peter Ujfalusi
2019-08-23 12:56 ` [PATCH 3/5] dmaengine: ti: edma: Use bitmap_set() instead of open coded edma_set_bits() Peter Ujfalusi
2019-08-23 12:56 ` [PATCH 4/5] dt-bindings: dma: ti-edma: Add option for reserved channel ranges Peter Ujfalusi
2019-08-29 22:47 ` Rob Herring
2019-08-30 5:37 ` Peter Ujfalusi
2019-09-03 10:19 ` Peter Ujfalusi
2019-09-06 13:10 ` Rob Herring
2019-08-23 12:56 ` [PATCH 5/5] dmaengine: ti: edma: Add support for handling reserved channels Peter Ujfalusi
2019-09-04 9:49 ` [PATCH 0/5] dmaengine: ti: edma: Multicore usage related fixes Vinod Koul
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