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| author | Cyril Bur <cyril.bur@au1.ibm.com> | 2018-03-07 17:04:57 +1100 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.ibm.com> | 2018-04-09 03:45:23 -0500 |
| commit | f7713517d90a14853dc9cfb66ee33dbc084e6ddf (patch) | |
| tree | c506168dc46997e30a8c75548c014bed276c0d60 /libflash/ecc.h | |
| parent | 07c4573d06785b06ce36fd8feab28e153f4756f7 (diff) | |
| download | skiboot-f7713517d90a14853dc9cfb66ee33dbc084e6ddf.zip skiboot-f7713517d90a14853dc9cfb66ee33dbc084e6ddf.tar.gz skiboot-f7713517d90a14853dc9cfb66ee33dbc084e6ddf.tar.bz2 | |
libflash/ecc: Add helpers to align a position within an ecc buffer
As part of ongoing work to make ECC invisible to higher levels up the
stack this function converts a 'position' which should be ECC agnostic
to the equivalent position within an ECC region starting at a specified
location.
Signed-off-by: Cyril Bur <cyril.bur@au1.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
Diffstat (limited to 'libflash/ecc.h')
| -rw-r--r-- | libflash/ecc.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libflash/ecc.h b/libflash/ecc.h index 2ce2215..bd66948 100644 --- a/libflash/ecc.h +++ b/libflash/ecc.h @@ -67,4 +67,9 @@ static inline uint64_t ecc_buffer_size_minus_ecc(uint64_t len) return len * BYTES_PER_ECC / (BYTES_PER_ECC + 1); } +static inline uint64_t ecc_buffer_align(uint64_t start, uint64_t pos) +{ + return pos - ((pos - start) % (BYTES_PER_ECC + 1)); +} + #endif |