summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--Documentation/DocBook/uio-howto.tmpl2
-rw-r--r--drivers/uio/uio.c7
-rw-r--r--include/linux/uio_driver.h7
3 files changed, 9 insertions, 7 deletions
diff --git a/Documentation/DocBook/uio-howto.tmpl b/Documentation/DocBook/uio-howto.tmpl
index 7c4b514d62b1..54883de5d5f9 100644
--- a/Documentation/DocBook/uio-howto.tmpl
+++ b/Documentation/DocBook/uio-howto.tmpl
@@ -529,7 +529,7 @@ memory (e.g. allocated with <function>kmalloc()</function>). There's also
</para></listitem>
<listitem><para>
-<varname>unsigned long addr</varname>: Required if the mapping is used.
+<varname>phys_addr_t addr</varname>: Required if the mapping is used.
Fill in the address of your memory block. This address is the one that
appears in sysfs.
</para></listitem>
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index c89f12a8b116..a783d533a1a6 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -69,7 +69,7 @@ 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%lx\n", mem->addr);
+ return sprintf(buf, "0x%llx\n", (unsigned long long)mem->addr);
}
static ssize_t map_size_show(struct uio_mem *mem, char *buf)
@@ -79,7 +79,7 @@ static ssize_t map_size_show(struct uio_mem *mem, char *buf)
static ssize_t map_offset_show(struct uio_mem *mem, char *buf)
{
- return sprintf(buf, "0x%lx\n", mem->addr & ~PAGE_MASK);
+ return sprintf(buf, "0x%llx\n", (unsigned long long)mem->addr & ~PAGE_MASK);
}
struct map_sysfs_entry {
@@ -634,8 +634,7 @@ static int uio_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
if (idev->info->mem[mi].memtype == UIO_MEM_LOGICAL)
page = virt_to_page(idev->info->mem[mi].addr + offset);
else
- page = vmalloc_to_page((void *)idev->info->mem[mi].addr
- + offset);
+ page = vmalloc_to_page((void *)(unsigned long)idev->info->mem[mi].addr + offset);
get_page(page);
vmf->page = page;
return 0;
diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h
index 665517c05eaf..fd99ff9298c6 100644
--- a/include/linux/uio_driver.h
+++ b/include/linux/uio_driver.h
@@ -23,7 +23,10 @@ struct uio_map;
/**
* struct uio_mem - description of a UIO memory region
* @name: name of the memory region for identification
- * @addr: address of the device's memory
+ * @addr: address of the device's memory (phys_addr is used since
+ * addr can be logical, virtual, or physical & phys_addr_t
+ * should always be large enough to handle any of the
+ * address types)
* @size: size of IO
* @memtype: type of memory addr points to
* @internal_addr: ioremap-ped version of addr, for driver internal use
@@ -31,7 +34,7 @@ struct uio_map;
*/
struct uio_mem {
const char *name;
- unsigned long addr;
+ phys_addr_t addr;
unsigned long size;
int memtype;
void __iomem *internal_addr;