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s390/pci: provide ZPCI_ADDR macro

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Provide and use a ZPCI_ADDR macro as the complement of ZPCI_IDX
to get rid of some constants in the code.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Sebastian Ott
2016-01-22 13:58:42 +01:00
committed by Martin Schwidefsky
parent c2e1fcf3ec
commit 9e00caaea1
2 changed files with 4 additions and 7 deletions
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arch/s390/include/asm/pci_io.h
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@@ -21,6 +21,7 @@ struct zpci_iomap_entry {
extern struct zpci_iomap_entry *zpci_iomap_start;
#define ZPCI_ADDR(idx) (ZPCI_IOMAP_ADDR_BASE | ((u64) idx << 48))
#define ZPCI_IDX(addr) \
(((__force u64) addr & ZPCI_IOMAP_ADDR_IDX_MASK) >> 48)
#define ZPCI_OFFSET(addr) \