From 072de836f53be56a70cecf70b43ae43b7ce17376 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 10:08:36 +0000
Subject: [PATCH] mk-rootfs.sh
---
kernel/drivers/dma/xgene-dma.c | 41 +++++++++++++----------------------------
1 files changed, 13 insertions(+), 28 deletions(-)
diff --git a/kernel/drivers/dma/xgene-dma.c b/kernel/drivers/dma/xgene-dma.c
index 1d59888..3589b4e 100644
--- a/kernel/drivers/dma/xgene-dma.c
+++ b/kernel/drivers/dma/xgene-dma.c
@@ -1,22 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Applied Micro X-Gene SoC DMA engine Driver
*
* Copyright (c) 2015, Applied Micro Circuits Corporation
* Authors: Rameshwar Prasad Sahu <rsahu@apm.com>
* Loc Ho <lho@apm.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* NOTE: PM support is currently not available.
*/
@@ -299,6 +287,8 @@
/**
* struct xgene_dma - internal representation of an X-Gene DMA device
+ * @dev: reference to this device's struct device
+ * @clk: reference to this device's clock
* @err_irq: DMA error irq number
* @ring_num: start id number for DMA ring
* @csr_dma: base for DMA register access
@@ -703,7 +693,7 @@
INIT_LIST_HEAD(&ld_completed);
- spin_lock_bh(&chan->lock);
+ spin_lock(&chan->lock);
/* Clean already completed and acked descriptors */
xgene_dma_clean_completed_descriptor(chan);
@@ -772,7 +762,7 @@
*/
xgene_chan_xfer_ld_pending(chan);
- spin_unlock_bh(&chan->lock);
+ spin_unlock(&chan->lock);
/* Run the callback for each descriptor, in order */
list_for_each_entry_safe(desc_sw, _desc_sw, &ld_completed, node) {
@@ -797,7 +787,7 @@
return -ENOMEM;
}
- chan_dbg(chan, "Allocate descripto pool\n");
+ chan_dbg(chan, "Allocate descriptor pool\n");
return 1;
}
@@ -985,9 +975,9 @@
return dma_cookie_status(dchan, cookie, txstate);
}
-static void xgene_dma_tasklet_cb(unsigned long data)
+static void xgene_dma_tasklet_cb(struct tasklet_struct *t)
{
- struct xgene_dma_chan *chan = (struct xgene_dma_chan *)data;
+ struct xgene_dma_chan *chan = from_tasklet(chan, t, tasklet);
/* Run all cleanup for descriptors which have been completed */
xgene_dma_cleanup_descriptors(chan);
@@ -1208,8 +1198,8 @@
ring->size = ret;
/* Allocate memory for DMA ring descriptor */
- ring->desc_vaddr = dma_zalloc_coherent(chan->dev, ring->size,
- &ring->desc_paddr, GFP_KERNEL);
+ ring->desc_vaddr = dma_alloc_coherent(chan->dev, ring->size,
+ &ring->desc_paddr, GFP_KERNEL);
if (!ring->desc_vaddr) {
chan_err(chan, "Failed to allocate ring desc\n");
return -ENOMEM;
@@ -1549,8 +1539,7 @@
INIT_LIST_HEAD(&chan->ld_pending);
INIT_LIST_HEAD(&chan->ld_running);
INIT_LIST_HEAD(&chan->ld_completed);
- tasklet_init(&chan->tasklet, xgene_dma_tasklet_cb,
- (unsigned long)chan);
+ tasklet_setup(&chan->tasklet, xgene_dma_tasklet_cb);
chan->pending = 0;
chan->desc_pool = NULL;
@@ -1690,20 +1679,16 @@
/* Get DMA error interrupt */
irq = platform_get_irq(pdev, 0);
- if (irq <= 0) {
- dev_err(&pdev->dev, "Failed to get Error IRQ\n");
+ if (irq <= 0)
return -ENXIO;
- }
pdma->err_irq = irq;
/* Get DMA Rx ring descriptor interrupts for all DMA channels */
for (i = 1; i <= XGENE_DMA_MAX_CHANNEL; i++) {
irq = platform_get_irq(pdev, i);
- if (irq <= 0) {
- dev_err(&pdev->dev, "Failed to get Rx IRQ\n");
+ if (irq <= 0)
return -ENXIO;
- }
pdma->chan[i - 1].rx_irq = irq;
}
--
Gitblit v1.6.2