diff options
Diffstat (limited to 'sys/sparc64')
| -rw-r--r-- | sys/sparc64/include/vmparam.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sys/sparc64/include/vmparam.h b/sys/sparc64/include/vmparam.h index 0638d0d..1b9e537 100644 --- a/sys/sparc64/include/vmparam.h +++ b/sys/sparc64/include/vmparam.h @@ -240,4 +240,11 @@ extern vm_offset_t vm_max_kernel_address; +/* + * Older sparc64 machines have a virtually indexed L1 data cache of 16KB. + * Consequently, mapping the same physical page multiple times may have + * caching disabled. + */ +#define ZERO_REGION_SIZE PAGE_SIZE + #endif /* !_MACHINE_VMPARAM_H_ */ |
