diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-ppc64/paca.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/include/asm-ppc64/paca.h b/include/asm-ppc64/paca.h index 71de51ac951f..53ee1a758baa 100644 --- a/include/asm-ppc64/paca.h +++ b/include/asm-ppc64/paca.h @@ -99,11 +99,17 @@ struct paca_struct { u64 exdsi[8]; /* used for linear mapping hash table misses */ /* - * iSeries structues which the hypervisor knows about - Not - * sure if these particularly need to be cacheline aligned. + * iSeries structure which the hypervisor knows about - + * this structure should not cross a page boundary. + * The vpa_init/register_vpa call is now known to fail if the + * lppaca structure crosses a page boundary. * The lppaca is also used on POWER5 pSeries boxes. + * The lppaca is 640 bytes long, and cannot readily change + * since the hypervisor knows its layout, so a 1kB + * alignment will suffice to ensure that it doesn't + * cross a page boundary. */ - struct ItLpPaca lppaca __attribute__((aligned(0x80))); + struct ItLpPaca lppaca __attribute__((__aligned__(0x400))); #ifdef CONFIG_PPC_ISERIES struct ItLpRegSave reg_save; #endif |