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| author | Jordan Niethe <jniethe5@gmail.com> | 2019-08-09 14:12:18 +1000 |
|---|---|---|
| committer | Oliver O'Halloran <oohall@gmail.com> | 2019-08-16 15:51:55 +1000 |
| commit | df15dcfc8acc83591889fa3b33100734a6b6bdb7 (patch) | |
| tree | b509dfc81f1b0bd02a46aba513c49260865b6998 /include/skiboot.h | |
| parent | 4acb8fe7960acbf13545ccafac691fe95047c714 (diff) | |
| download | skiboot-df15dcfc8acc83591889fa3b33100734a6b6bdb7.zip skiboot-df15dcfc8acc83591889fa3b33100734a6b6bdb7.tar.gz skiboot-df15dcfc8acc83591889fa3b33100734a6b6bdb7.tar.bz2 | |
pci: Use a macro for accessing PCI BDF Bus Number
Currently when the Bus Number bits of a BDF are needed the bit
operations to get it are free coded. There are many places where the
Bus Number is used, so make a macro to use instead of free coding it
everytime.
Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Diffstat (limited to 'include/skiboot.h')
| -rw-r--r-- | include/skiboot.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/skiboot.h b/include/skiboot.h index e554325..4db265f 100644 --- a/include/skiboot.h +++ b/include/skiboot.h @@ -137,6 +137,9 @@ static inline bool is_pow2(unsigned long val) #define MIN(a, b) ((a) < (b) ? (a) : (b)) #define MAX(a, b) ((a) > (b) ? (a) : (b)) +/* PCI Geographical Addressing */ +#define PCI_BUS_NUM(bdfn) (((bdfn) >> 8) & 0xff) + /* Clean the stray high bit which the FSP inserts: we only have 52 bits real */ static inline u64 cleanup_addr(u64 addr) { |