unimore/kernel-hacking-2024-linux-steffo
unimore/kernel-hacking-2024-linux-steffo
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dmaengine: hsu: Account transferred bytes

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Bump statistics for transferred bytes at the event of the successful transfer.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210518104323.37632-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Andy Shevchenko 2021-05-18 13:43:23 +03:00 committed by Vinod Koul
parent acfbb1911d
commit 66fde1794f
1 changed files with 3 additions and 0 deletions
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3
drivers/dma/hsu/hsu.c
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@ -201,6 +201,7 @@ EXPORT_SYMBOL_GPL(hsu_dma_get_status);
*/ */
int hsu_dma_do_irq(struct hsu_dma_chip *chip, unsigned short nr, u32 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_chan *hsuc;
struct hsu_dma_desc *desc; struct hsu_dma_desc *desc;
unsigned long flags; unsigned long flags;
@ -210,6 +211,7 @@ int hsu_dma_do_irq(struct hsu_dma_chip *chip, unsigned short nr, u32 status)
return 0; return 0;
hsuc = &chip->hsu->chan[nr]; hsuc = &chip->hsu->chan[nr];
stat = this_cpu_ptr(hsuc->vchan.chan.local);
spin_lock_irqsave(&hsuc->vchan.lock, flags); spin_lock_irqsave(&hsuc->vchan.lock, flags);
desc = hsuc->desc; desc = hsuc->desc;
@ -221,6 +223,7 @@ int hsu_dma_do_irq(struct hsu_dma_chip *chip, unsigned short nr, u32 status)
} else { } else {
vchan_cookie_complete(&desc->vdesc); vchan_cookie_complete(&desc->vdesc);
desc->status = DMA_COMPLETE; desc->status = DMA_COMPLETE;
stat->bytes_transferred += desc->length;
hsu_dma_start_transfer(hsuc); hsu_dma_start_transfer(hsuc);
} }
} }