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[POWERPC] vdso: Fixes for cache block sizes

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The current VDSO implementation is hardcoded to 128 byte cache blocks,
which are only used on IBM's 64-bit processors.

Convert it to get the cache block sizes out of vdso_data instead,
similar to how the ppc64 in-kernel cache flush does it.

Signed-off-by: Olof Johansson <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
This commit is contained in:
Olof Johansson 2007-11-20 12:24:45 +11:00 • committed by Paul Mackerras
commit fbe481756d
5 changed files with 81 additions and 24 deletions
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8
include/asm-powerpc/vdso_datapage.h
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@ -77,6 +77,10 @@ struct vdso_data {
/* those additional ones don't have to be located anywhere
* special as they were not part of the original systemcfg
*/
__u32 dcache_block_size; /* L1 d-cache block size */
__u32 icache_block_size; /* L1 i-cache block size */
__u32 dcache_log_block_size; /* L1 d-cache log block size */
__u32 icache_log_block_size; /* L1 i-cache log block size */
__s32 wtom_clock_sec; /* Wall to monotonic clock */
__s32 wtom_clock_nsec;
__u32 syscall_map_64[SYSCALL_MAP_SIZE]; /* map of syscalls */
@ -99,6 +103,10 @@ struct vdso_data {
__s32 wtom_clock_sec; /* Wall to monotonic clock */
__s32 wtom_clock_nsec;
__u32 syscall_map_32[SYSCALL_MAP_SIZE]; /* map of syscalls */
__u32 dcache_block_size; /* L1 d-cache block size */
__u32 icache_block_size; /* L1 i-cache block size */
__u32 dcache_log_block_size; /* L1 d-cache log block size */
__u32 icache_log_block_size; /* L1 i-cache log block size */
};
#endif /* CONFIG_PPC64 */