diff options
| author | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2013-02-19 13:59:19 +0000 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2013-02-19 22:02:34 -0500 |
| commit | 3216dceb31c08be08ea98814a9ca5775fa680389 (patch) | |
| tree | 06f0ec957f047a01176b4514c03782fc923bd747 /drivers | |
| parent | e7e44e444876478d50630f57b0c31d29f6725020 (diff) | |
xen: introduce xen_remap, use it instead of ioremap
ioremap can't be used to map ring pages on ARM because it uses device
memory caching attributes (MT_DEVICE*).
Introduce a Xen specific abstraction to map ring pages, called
xen_remap, that is defined as ioremap on x86 (no behavioral changes).
On ARM it explicitly calls __arm_ioremap with the right caching
attributes: MT_MEMORY.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/hvc/hvc_xen.c | 2 | ||||
| -rw-r--r-- | drivers/xen/grant-table.c | 2 | ||||
| -rw-r--r-- | drivers/xen/xenbus/xenbus_probe.c | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c index 19843ec3f80a..682210d778bd 100644 --- a/drivers/tty/hvc/hvc_xen.c +++ b/drivers/tty/hvc/hvc_xen.c @@ -230,7 +230,7 @@ static int xen_hvm_console_init(void) if (r < 0 || v == 0) goto err; mfn = v; - info->intf = ioremap(mfn << PAGE_SHIFT, PAGE_SIZE); + info->intf = xen_remap(mfn << PAGE_SHIFT, PAGE_SIZE); if (info->intf == NULL) goto err; info->vtermno = HVC_COOKIE; diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c index 157c0ccda3ef..04c1b2d9b775 100644 --- a/drivers/xen/grant-table.c +++ b/drivers/xen/grant-table.c @@ -1147,7 +1147,7 @@ static int gnttab_setup(void) return gnttab_map(0, nr_grant_frames - 1); if (gnttab_shared.addr == NULL) { - gnttab_shared.addr = ioremap(xen_hvm_resume_frames, + gnttab_shared.addr = xen_remap(xen_hvm_resume_frames, PAGE_SIZE * max_nr_gframes); if (gnttab_shared.addr == NULL) { printk(KERN_WARNING diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c index 038b71dbf03c..3325884c693f 100644 --- a/drivers/xen/xenbus/xenbus_probe.c +++ b/drivers/xen/xenbus/xenbus_probe.c @@ -769,7 +769,7 @@ static int __init xenbus_init(void) goto out_error; xen_store_mfn = (unsigned long)v; xen_store_interface = - ioremap(xen_store_mfn << PAGE_SHIFT, PAGE_SIZE); + xen_remap(xen_store_mfn << PAGE_SHIFT, PAGE_SIZE); break; default: pr_warn("Xenstore state unknown\n"); |