diff options
Diffstat (limited to 'drivers/dma/hsu/hsu.c')
| -rw-r--r-- | drivers/dma/hsu/hsu.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/dma/hsu/hsu.c b/drivers/dma/hsu/hsu.c index e06f20272fd7..af5a2e252c25 100644 --- a/drivers/dma/hsu/hsu.c +++ b/drivers/dma/hsu/hsu.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Core driver for the High Speed UART DMA * @@ -5,10 +6,6 @@ * Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com> * * Partially based on the bits found in drivers/tty/serial/mfd.c. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ /* @@ -19,12 +16,20 @@ * port 3, and so on. */ +#include <linux/bits.h> #include <linux/delay.h> +#include <linux/device.h> #include <linux/dmaengine.h> #include <linux/dma-mapping.h> #include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/list.h> #include <linux/module.h> +#include <linux/percpu-defs.h> +#include <linux/scatterlist.h> #include <linux/slab.h> +#include <linux/string.h> +#include <linux/spinlock.h> #include "hsu.h" @@ -64,10 +69,10 @@ static void hsu_dma_chan_start(struct hsu_dma_chan *hsuc) if (hsuc->direction == DMA_MEM_TO_DEV) { bsr = config->dst_maxburst; - mtsr = config->src_addr_width; + mtsr = config->dst_addr_width; } else if (hsuc->direction == DMA_DEV_TO_MEM) { bsr = config->src_maxburst; - mtsr = config->dst_addr_width; + mtsr = config->src_addr_width; } hsu_chan_disable(hsuc); @@ -204,6 +209,7 @@ EXPORT_SYMBOL_GPL(hsu_dma_get_status); */ int hsu_dma_do_irq(struct hsu_dma_chip *chip, unsigned short nr, u32 status) { + struct dma_chan_percpu *stat; struct hsu_dma_chan *hsuc; struct hsu_dma_desc *desc; unsigned long flags; @@ -213,6 +219,7 @@ int hsu_dma_do_irq(struct hsu_dma_chip *chip, unsigned short nr, u32 status) return 0; hsuc = &chip->hsu->chan[nr]; + stat = this_cpu_ptr(hsuc->vchan.chan.local); spin_lock_irqsave(&hsuc->vchan.lock, flags); desc = hsuc->desc; @@ -224,6 +231,7 @@ int hsu_dma_do_irq(struct hsu_dma_chip *chip, unsigned short nr, u32 status) } else { vchan_cookie_complete(&desc->vdesc); desc->status = DMA_COMPLETE; + stat->bytes_transferred += desc->length; hsu_dma_start_transfer(hsuc); } } |