9 files changed, 33 insertions, 16 deletions

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/acpi.c b/arch/ia64/kernel/acpi.c
index 853d1f11be00..43687cc60dfb 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -465,7 +465,6 @@ void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
                 printk(KERN_ERR
                        "ACPI 2.0 SLIT: size mismatch: %d expected, %d actual\n",
                        len, slit->header.length);
-                memset(numa_slit, 10, sizeof(numa_slit));
                 return;
         }
         slit_table = slit;
@@ -574,8 +573,14 @@ void __init acpi_numa_arch_fixup(void)
         printk(KERN_INFO "Number of memory chunks in system = %d\n",
                num_node_memblks);
 
-        if (!slit_table)
+        if (!slit_table) {
+                for (i = 0; i < MAX_NUMNODES; i++)
+                        for (j = 0; j < MAX_NUMNODES; j++)
+                                node_distance(i, j) = i == j ? LOCAL_DISTANCE :
+                                                        REMOTE_DISTANCE;
                 return;
+        }
+
         memset(numa_slit, -1, sizeof(numa_slit));
         for (i = 0; i < slit_table->locality_count; i++) {
                 if (!pxm_bit_test(i))
diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index 082c31dcfd99..39752cdef6ff 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -558,8 +558,6 @@ static struct iosapic_rte_info * __init_refok iosapic_alloc_rte (void)
         if (!iosapic_kmalloc_ok && list_empty(&free_rte_list)) {
                 rte = alloc_bootmem(sizeof(struct iosapic_rte_info) *
                                     NR_PREALLOCATE_RTE_ENTRIES);
-                if (!rte)
-                        return NULL;
                 for (i = 0; i < NR_PREALLOCATE_RTE_ENTRIES; i++, rte++)
                         list_add(&rte->rte_list, &free_rte_list);
         }
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/kernel/setup.c b/arch/ia64/kernel/setup.c
index f48a809c686d..4ae15c8c2488 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -578,8 +578,6 @@ setup_arch (char **cmdline_p)
         cpu_init();     /* initialize the bootstrap CPU */
         mmu_context_init();     /* initialize context_id bitmap */
 
-        check_sal_cache_flush();
-
 #ifdef CONFIG_ACPI
         acpi_boot_init();
 #endif
@@ -607,6 +605,7 @@ setup_arch (char **cmdline_p)
                 ia64_mca_init();
 
         platform_setup(cmdline_p);
+        check_sal_cache_flush();
         paging_init();
 }
 
diff --git a/arch/ia64/kvm/mmio.c b/arch/ia64/kvm/mmio.c
index 351bf70da463..7f1a858bc69f 100644
--- a/arch/ia64/kvm/mmio.c
+++ b/arch/ia64/kvm/mmio.c
@@ -159,7 +159,8 @@ static void mmio_access(struct kvm_vcpu *vcpu, u64 src_pa, u64 *dest,
 
         if (p->u.ioreq.state == STATE_IORESP_READY) {
                 if (dir == IOREQ_READ)
-                        *dest = p->u.ioreq.data;
+                        /* it's necessary to ensure zero extending */
+                        *dest = p->u.ioreq.data & (~0UL >> (64-(s*8)));
         } else
                 panic_vm(vcpu);
 out:
diff --git a/arch/ia64/sn/kernel/sn2/sn2_smp.c b/arch/ia64/sn/kernel/sn2/sn2_smp.c
index 49d3120415eb..e585f9a2afb9 100644
--- a/arch/ia64/sn/kernel/sn2/sn2_smp.c
+++ b/arch/ia64/sn/kernel/sn2/sn2_smp.c
@@ -512,6 +512,8 @@ static ssize_t sn2_ptc_proc_write(struct file *file, const char __user *user, si
         int cpu;
         char optstr[64];
 
+        if (count == 0 || count > sizeof(optstr))
+                return -EINVAL;
         if (copy_from_user(optstr, user, count))
                 return -EFAULT;
         optstr[count - 1] = '\0';
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);