# HG changeset patch
# User awilliam@xxxxxxxxxxx
# Node ID 5f0bdd0ef9dc97464eccf224a185202292159145
# Parent e891c49c7bc003755ae8a190a654af7dc958d547
[IA64] linux: drivers/xen/util.c for ia64
xen/ia64 counter part of linux-2.6-xen-sparse/drivers/xen/util.c
Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
---
linux-2.6-xen-sparse/arch/ia64/xen/Makefile | 2
linux-2.6-xen-sparse/arch/ia64/xen/drivers/Makefile | 2
linux-2.6-xen-sparse/arch/ia64/xen/util.c | 110 ++++++++++++++++++++
3 files changed, 113 insertions(+), 1 deletion(-)
diff -r e891c49c7bc0 -r 5f0bdd0ef9dc linux-2.6-xen-sparse/arch/ia64/xen/Makefile
--- a/linux-2.6-xen-sparse/arch/ia64/xen/Makefile Tue May 09 11:44:26
2006 -0600
+++ b/linux-2.6-xen-sparse/arch/ia64/xen/Makefile Tue May 09 11:46:00
2006 -0600
@@ -4,5 +4,5 @@
obj-y := hypercall.o xenivt.o xenentry.o xensetup.o xenpal.o xenhpski.o
xenconsole.o xen_ksyms.o
-obj-$(CONFIG_XEN_IA64_DOM0_VP) += hypervisor.o pci-dma-xen.o
+obj-$(CONFIG_XEN_IA64_DOM0_VP) += hypervisor.o pci-dma-xen.o util.o
pci-dma-xen-$(CONFIG_XEN_IA64_DOM0_VP) := ../../i386/kernel/pci-dma-xen.o
\ No newline at end of file
diff -r e891c49c7bc0 -r 5f0bdd0ef9dc
linux-2.6-xen-sparse/arch/ia64/xen/drivers/Makefile
--- a/linux-2.6-xen-sparse/arch/ia64/xen/drivers/Makefile Tue May 09
11:44:26 2006 -0600
+++ b/linux-2.6-xen-sparse/arch/ia64/xen/drivers/Makefile Tue May 09
11:46:00 2006 -0600
@@ -1,5 +1,7 @@
+ifneq ($(CONFIG_XEN_IA64_DOM0_VP),y)
obj-y += util.o
+endif
obj-y += core/
obj-y += console/
diff -r e891c49c7bc0 -r 5f0bdd0ef9dc linux-2.6-xen-sparse/arch/ia64/xen/util.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/linux-2.6-xen-sparse/arch/ia64/xen/util.c Tue May 09 11:46:00 2006 -0600
@@ -0,0 +1,110 @@
+/******************************************************************************
+ * arch/ia64/xen/util.c
+ * This file is the ia64 counterpart of drivers/xen/util.c
+ *
+ * Copyright (c) 2006 Isaku Yamahata <yamahata at valinux co jp>
+ * VA Linux Systems Japan K.K.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <asm/uaccess.h>
+#include <xen/driver_util.h>
+
+struct vm_struct *alloc_vm_area(unsigned long size)
+{
+ int order;
+ unsigned long virt;
+ unsigned long nr_pages;
+ struct vm_struct* area;
+
+ order = get_order(size);
+ virt = __get_free_pages(GFP_KERNEL, order);
+ if (virt == 0) {
+ goto err0;
+ }
+ nr_pages = 1 << order;
+ scrub_pages(virt, nr_pages);
+
+ area = kmalloc(sizeof(*area), GFP_KERNEL);
+ if (area == NULL) {
+ goto err1;
+ }
+
+ area->flags = VM_IOREMAP;//XXX
+ area->addr = (void*)virt;
+ area->size = size;
+ area->pages = NULL; //XXX
+ area->nr_pages = nr_pages;
+ area->phys_addr = __pa(virt);
+
+ return area;
+
+err1:
+ free_pages(virt, order);
+err0:
+ return NULL;
+
+}
+EXPORT_SYMBOL_GPL(alloc_vm_area);
+
+void free_vm_area(struct vm_struct *area)
+{
+ unsigned int order = get_order(area->size);
+ unsigned long i;
+
+ // This area is used for foreign page mappping.
+ // So underlying machine page may not be assigned.
+ for (i = 0; i < (1 << order); i++) {
+ unsigned long error;
+ error = HYPERVISOR_populate_physmap(
+ (area->phys_addr >> PAGE_SHIFT) + i, 0, 0);
+ if (error) {
+ BUG();//XXX
+ return;
+ }
+ }
+ free_pages((unsigned long)area->addr, order);
+ kfree(area);
+}
+EXPORT_SYMBOL_GPL(free_vm_area);
+
+void lock_vm_area(struct vm_struct *area)
+{
+ // nothing
+}
+EXPORT_SYMBOL_GPL(lock_vm_area);
+
+void unlock_vm_area(struct vm_struct *area)
+{
+ // nothing
+}
+EXPORT_SYMBOL_GPL(unlock_vm_area);
+
+/*
+ * Local variables:
+ * c-file-style: "linux"
+ * indent-tabs-mode: t
+ * c-indent-level: 8
+ * c-basic-offset: 8
+ * tab-width: 8
+ * End:
+ */
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