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Move p2v and v2p to pci.h

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-10-01 21:37:02 +02:00
parent e5c0534f0b
commit 0a213f4cdb
2 changed files with 30 additions and 29 deletions
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15
include/grub/pci.h
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@ -132,6 +132,21 @@ void EXPORT_FUNC(grub_dma_free) (struct grub_pci_dma_chunk *ch);
volatile void *EXPORT_FUNC(grub_dma_get_virt) (struct grub_pci_dma_chunk *ch);
grub_uint32_t EXPORT_FUNC(grub_dma_get_phys) (struct grub_pci_dma_chunk *ch);
static inline void *
grub_dma_phys2virt (grub_uint32_t phys, struct grub_pci_dma_chunk *chunk)
{
return ((grub_uint8_t *) grub_dma_get_virt (chunk)
+ (phys - grub_dma_get_phys (chunk)));
}
static inline grub_uint32_t
grub_dma_virt2phys (volatile void *virt, struct grub_pci_dma_chunk *chunk)
{
return (((grub_uint8_t *) virt - (grub_uint8_t *) grub_dma_get_virt (chunk))
+ grub_dma_get_phys (chunk));
}
#endif
#endif /* GRUB_PCI_H */