diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/platforms/ps3/interrupt.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/ps3/interrupt.c b/arch/powerpc/platforms/ps3/interrupt.c index 3735cd14f61..95b128ba908 100644 --- a/arch/powerpc/platforms/ps3/interrupt.c +++ b/arch/powerpc/platforms/ps3/interrupt.c @@ -48,6 +48,9 @@ * behalf of the guest. These mappings are implemented as 256 bit guest * supplied bitmaps indexed by plug number. The addresses of the bitmaps * are registered with the HV through lv1_configure_irq_state_bitmap(). + * The HV requires that the 512 bits of status + mask not cross a page + * boundary. PS3_BMP_MINALIGN is used to define this minimal 64 byte + * alignment. * * The HV supports 256 plugs per thread, assigned as {0..255}, for a total * of 512 plugs supported on a processor. To simplify the logic this @@ -59,6 +62,8 @@ * can acquire. */ +#define PS3_BMP_MINALIGN 64 + struct ps3_bmp { struct { u64 status; @@ -78,7 +83,7 @@ struct ps3_bmp { */ struct ps3_private { - struct ps3_bmp bmp __attribute__ ((aligned (64))); + struct ps3_bmp bmp __attribute__ ((aligned (PS3_BMP_MINALIGN))); u64 node; unsigned int cpu; }; |