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authorCristian Stoica <cristian.stoica@freescale.com>2014-10-09 15:00:27 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-11-07 10:09:07 -0800
commite0f1147cc9512d3610d2f2a0f069690661444703 (patch)
tree5c4d901cb1ff60ca8658e2846c0d35bf5b9ac089
parent5559b7bc42f1ff85759246e40ef73abf3171d8d9 (diff)
uio: support memory sizes larger than 32 bits
This is a completion to 27a90700a4275c5178b883b65927affdafa5185c The size field is also increased to allow values larger than 32 bits on platforms that have more than 32 bit physical addresses. Signed-off-by: Cristian Stoica <cristian.stoica@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--Documentation/DocBook/uio-howto.tmpl2
-rw-r--r--drivers/uio/uio.c4
-rw-r--r--include/linux/uio_driver.h2
3 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/DocBook/uio-howto.tmpl b/Documentation/DocBook/uio-howto.tmpl
index bbe9c1fd5cef..1fdc246e4256 100644
--- a/Documentation/DocBook/uio-howto.tmpl
+++ b/Documentation/DocBook/uio-howto.tmpl
@@ -540,7 +540,7 @@ appears in sysfs.
</para></listitem>
<listitem><para>
-<varname>unsigned long size</varname>: Fill in the size of the
+<varname>resource_size_t size</varname>: Fill in the size of the
memory block that <varname>addr</varname> points to. If <varname>size</varname>
is zero, the mapping is considered unused. Note that you
<emphasis>must</emphasis> initialize <varname>size</varname> with zero for
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index 60fa6278fbce..6276f13e9e12 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -56,12 +56,12 @@ static ssize_t map_name_show(struct uio_mem *mem, char *buf)
static ssize_t map_addr_show(struct uio_mem *mem, char *buf)
{
- return sprintf(buf, "0x%llx\n", (unsigned long long)mem->addr);
+ return sprintf(buf, "%pa\n", &mem->addr);
}
static ssize_t map_size_show(struct uio_mem *mem, char *buf)
{
- return sprintf(buf, "0x%lx\n", mem->size);
+ return sprintf(buf, "%pa\n", &mem->size);
}
static ssize_t map_offset_show(struct uio_mem *mem, char *buf)
diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h
index baa81718d985..32c0e83d6239 100644
--- a/include/linux/uio_driver.h
+++ b/include/linux/uio_driver.h
@@ -35,7 +35,7 @@ struct uio_map;
struct uio_mem {
const char *name;
phys_addr_t addr;
- unsigned long size;
+ resource_size_t size;
int memtype;
void __iomem *internal_addr;
struct uio_map *map;