svn commit: r223806 - head/sys/sparc64/sparc64

[Marius Strobl]

Author: marius
Date: Tue Jul  5 20:05:06 2011
New Revision: 223806
URL: http://svn.freebsd.org/changeset/base/223806

Log:
  Remove the IDR_CHEETAH_MAX_BN_PAIRS limit from cheetah_ipi_selected().
  This is just a simple approach. For reasons unknown OpenSolaris uses a
  more sophisticated one involving IPIing the remaining CPUs in reverse
  order after the first batch of 32.

Modified:
  head/sys/sparc64/sparc64/mp_machdep.c

Modified: head/sys/sparc64/sparc64/mp_machdep.c
==============================================================================
--- head/sys/sparc64/sparc64/mp_machdep.c	Tue Jul  5 19:48:57 2011	(r223805)
+++ head/sys/sparc64/sparc64/mp_machdep.c	Tue Jul  5 20:05:06 2011	(r223806)
@@ -139,8 +139,6 @@ static cpu_ipi_single_t spitfire_ipi_sin
 
 SYSINIT(cpu_mp_unleash, SI_SUB_SMP, SI_ORDER_FIRST, cpu_mp_unleash, NULL);
 
-CTASSERT(MAXCPU <= IDR_CHEETAH_MAX_BN_PAIRS);
-
 void
 mp_init(u_int cpu_impl)
 {
@@ -696,6 +694,8 @@ cheetah_ipi_selected(cpuset_t cpus, u_lo
 				    ASI_SDB_INTR_W, 0);
 				membar(Sync);
 				bnp++;
+				if (bnp == IDR_CHEETAH_MAX_BN_PAIRS)
+					break;
 			}
 		}
 		while (((ids = ldxa(0, ASI_INTR_DISPATCH_STATUS)) &