Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 57715765 authored by Geoff Levand's avatar Geoff Levand Committed by Paul Mackerras
Browse files

[POWERPC] ps3: fix interrupt bmp 



Add a comment and a preprocessor macro to help clearify the alignment
needs of the PS3 interrupt bitmap.

Signed-off-by: default avatarGeoff Levand <geoffrey.levand@am.sony.com>
Acked-by: default avatarArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent b1eeb38e

arch/powerpc/platforms/ps3/interrupt.c

+6 −1
Original line number Diff line number Diff line
@@ -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;

};