diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile
index 88f1a55c6c94..e67ee3f27698 100644
--- a/arch/ia64/Makefile
+++ b/arch/ia64/Makefile
@@ -57,6 +57,7 @@ core-$(CONFIG_IA64_GENERIC) 	+= arch/ia64/dig/
 core-$(CONFIG_IA64_HP_ZX1)	+= arch/ia64/dig/
 core-$(CONFIG_IA64_HP_ZX1_SWIOTLB) += arch/ia64/dig/
 core-$(CONFIG_IA64_SGI_SN2)	+= arch/ia64/sn/
+core-$(CONFIG_IA64_SGI_UV)	+= arch/ia64/uv/
 core-$(CONFIG_KVM) 		+= arch/ia64/kvm/
 
 drivers-$(CONFIG_PCI)		+= arch/ia64/pci/
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 71d05133f556..7714a97b0104 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -1864,11 +1864,6 @@ pfm_flush(struct file *filp, fl_owner_t id)
 	 * invoked after, it will find an empty queue and no
 	 * signal will be sent. In both case, we are safe
 	 */
-	if (filp->f_flags & FASYNC) {
-		DPRINT(("cleaning up async_queue=%p\n", ctx->ctx_async_queue));
-		pfm_do_fasync (-1, filp, ctx, 0);
-	}
-
 	PROTECT_CTX(ctx, flags);
 
 	state     = ctx->ctx_state;
@@ -1999,6 +1994,11 @@ pfm_close(struct inode *inode, struct file *filp)
 		return -EBADF;
 	}
 
+	if (filp->f_flags & FASYNC) {
+		DPRINT(("cleaning up async_queue=%p\n", ctx->ctx_async_queue));
+		pfm_do_fasync(-1, filp, ctx, 0);
+	}
+
 	PROTECT_CTX(ctx, flags);
 
 	state     = ctx->ctx_state;
diff --git a/arch/ia64/kernel/sal.c b/arch/ia64/kernel/sal.c
index 7e0259709c04..0464173ea568 100644
--- a/arch/ia64/kernel/sal.c
+++ b/arch/ia64/kernel/sal.c
@@ -252,11 +252,10 @@ check_sal_cache_flush (void)
 	local_irq_save(flags);
 
 	/*
-	 * Schedule a timer interrupt, wait until it's reported, and see if
-	 * SAL_CACHE_FLUSH drops it.
+	 * Send ourselves a timer interrupt, wait until it's reported, and see
+	 * if SAL_CACHE_FLUSH drops it.
 	 */
-	ia64_set_itv(IA64_TIMER_VECTOR);
-	ia64_set_itm(ia64_get_itc() + 1000);
+	platform_send_ipi(cpu, IA64_TIMER_VECTOR, IA64_IPI_DM_INT, 0);
 
 	while (!ia64_get_irr(IA64_TIMER_VECTOR))
 		cpu_relax();
diff --git a/arch/ia64/uv/kernel/setup.c b/arch/ia64/uv/kernel/setup.c
index 9aa743203c3c..cf5f28ae96c4 100644
--- a/arch/ia64/uv/kernel/setup.c
+++ b/arch/ia64/uv/kernel/setup.c
@@ -17,6 +17,9 @@
 DEFINE_PER_CPU(struct uv_hub_info_s, __uv_hub_info);
 EXPORT_PER_CPU_SYMBOL_GPL(__uv_hub_info);
 
+#ifdef CONFIG_IA64_SGI_UV
+int sn_prom_type;
+#endif
 
 struct redir_addr {
 	unsigned long redirect;
@@ -64,6 +67,15 @@ void __init uv_setup(char **cmdline_p)
 		m_n_config.s.m_skt = 37;
 		m_n_config.s.n_skt = 0;
 		mmr_base = 0;
+#if 0
+		/* Need BIOS calls - TDB */
+		if (!ia64_sn_is_fake_prom())
+			sn_prom_type = 1;
+		else
+#endif
+			sn_prom_type = 2;
+		printk(KERN_INFO "Running on medusa with %s PROM\n",
+					(sn_prom_type == 1) ? "real" : "fake");
 	} else {
 		get_lowmem_redirect(&lowmem_redir_base, &lowmem_redir_size);
 		node_id.v = uv_read_local_mmr(UVH_NODE_ID);
diff --git a/include/asm-ia64/sn/simulator.h b/include/asm-ia64/sn/simulator.h
index c3fd3eb25768..c2611f6cfe33 100644
--- a/include/asm-ia64/sn/simulator.h
+++ b/include/asm-ia64/sn/simulator.h
@@ -8,7 +8,7 @@
 #ifndef _ASM_IA64_SN_SIMULATOR_H
 #define _ASM_IA64_SN_SIMULATOR_H
 
-
+#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) || defined(CONFIG_IA64_SGI_UV)
 #define SNMAGIC 0xaeeeeeee8badbeefL
 #define IS_MEDUSA()			({long sn; asm("mov %0=cpuid[%1]" : "=r"(sn) : "r"(2)); sn == SNMAGIC;})
 
@@ -16,5 +16,10 @@
 #define IS_RUNNING_ON_SIMULATOR()	(sn_prom_type)
 #define IS_RUNNING_ON_FAKE_PROM()	(sn_prom_type == 2)
 extern int sn_prom_type;		/* 0=hardware, 1=medusa/realprom, 2=medusa/fakeprom */
+#else
+#define IS_MEDUSA()			0
+#define SIMULATOR_SLEEP()
+#define IS_RUNNING_ON_SIMULATOR()	0
+#endif
 
 #endif /* _ASM_IA64_SN_SIMULATOR_H */