diff options
| author | Mark Brown <[email protected]> | 2021-05-18 17:24:52 +0100 |
|---|---|---|
| committer | Mark Brown <[email protected]> | 2021-05-18 17:24:52 +0100 |
| commit | c37fe6aff89cb0d842993fe2f69e48bf3ebe0ab0 (patch) | |
| tree | 2a322c48218f7006bab789b7bf16ec58b129a096 /tools/testing/selftests/powerpc/alignment/alignment_handler.c | |
| parent | d7aed20d446d8c87f5e13adf73281056b0064a45 (diff) | |
| parent | d07f6ca923ea0927a1024dfccafc5b53b61cfecc (diff) | |
Merge tag 'v5.13-rc2' into spi-5.13
Linux 5.13-rc2
Diffstat (limited to 'tools/testing/selftests/powerpc/alignment/alignment_handler.c')
| -rw-r--r-- | tools/testing/selftests/powerpc/alignment/alignment_handler.c | 11 |
1 files changed, 1 insertions, 10 deletions
diff --git a/tools/testing/selftests/powerpc/alignment/alignment_handler.c b/tools/testing/selftests/powerpc/alignment/alignment_handler.c index c25cf7cd45e9..33ee34fc0828 100644 --- a/tools/testing/selftests/powerpc/alignment/alignment_handler.c +++ b/tools/testing/selftests/powerpc/alignment/alignment_handler.c @@ -10,16 +10,7 @@ * * We create two sets of source and destination buffers, one in regular memory, * the other cache-inhibited (by default we use /dev/fb0 for this, but an - * alterative path for cache-inhibited memory may be provided). - * - * One way to get cache-inhibited memory is to use the "mem" kernel parameter - * to limit the kernel to less memory than actually exists. Addresses above - * the limit may still be accessed but will be treated as cache-inhibited. For - * example, if there is actually 4GB of memory and the parameter "mem=3GB" is - * used, memory from address 0xC0000000 onwards is treated as cache-inhibited. - * To access this region /dev/mem is used. The kernel should be configured - * without CONFIG_STRICT_DEVMEM. In this case use: - * ./alignment_handler /dev/mem 0xc0000000 + * alterative path for cache-inhibited memory may be provided, e.g. memtrace). * * We initialise the source buffers, then use whichever set of load/store * instructions is under test to copy bytes from the source buffers to the |