diff options
Diffstat (limited to 'include/linux/libata.h')
| -rw-r--r-- | include/linux/libata.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h index 6225b78fa65b..dcd17e7458ab 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -777,4 +777,17 @@ static inline unsigned int __ac_err_mask(u8 status) return mask; } +static inline int ata_pad_alloc(struct ata_port *ap, struct device *dev) +{ + ap->pad_dma = 0; + ap->pad = dma_alloc_coherent(dev, ATA_DMA_PAD_BUF_SZ, + &ap->pad_dma, GFP_KERNEL); + return (ap->pad == NULL) ? -ENOMEM : 0; +} + +static inline void ata_pad_free(struct ata_port *ap, struct device *dev) +{ + dma_free_coherent(dev, ATA_DMA_PAD_BUF_SZ, ap->pad, ap->pad_dma); +} + #endif /* __LINUX_LIBATA_H__ */ |