redonkable/remarkable-linux
redonkable/remarkable-linux
1
0
Fork 0
Code Releases Activity

video/xen-fbfront: Further s/MFN/GFN clean-up

Browse source 
The PV driver xen-fbfront is only dealing with GFN and not MFN. Rename
all the occurence of MFN to GFN.

Also take the opportunity to replace to usage of pfn_to_gfn by
xen_page_to_gfn.

Signed-off-by: Julien Grall <julien.grall@citrix.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
This commit is contained in:
Julien Grall 2015-08-07 17:34:39 +01:00
parent a76e3cc32d
commit 0467533a7a
1 changed files with 9 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
drivers/video/fbdev/xen-fbfront.c
View file

@ -46,7 +46,7 @@ struct xenfb_info {
int nr_pages;
int irq;
struct xenfb_page *page;
unsigned long *mfns;
unsigned long *gfns;
int update_wanted; /* XENFB_TYPE_UPDATE wanted */
int feature_resize; /* XENFB_TYPE_RESIZE ok */
struct xenfb_resize resize; /* protected by resize_lock */
@ -402,8 +402,8 @@ static int xenfb_probe(struct xenbus_device *dev,
info->nr_pages = (fb_size + PAGE_SIZE - 1) >> PAGE_SHIFT;
info->mfns = vmalloc(sizeof(unsigned long) * info->nr_pages);
if (!info->mfns)
info->gfns = vmalloc(sizeof(unsigned long) * info->nr_pages);
if (!info->gfns)
goto error_nomem;
/* set up shared page */
@ -530,29 +530,29 @@ static int xenfb_remove(struct xenbus_device *dev)
framebuffer_release(info->fb_info);
}
free_page((unsigned long)info->page);
vfree(info->mfns);
vfree(info->gfns);
vfree(info->fb);
kfree(info);
return 0;
}
static unsigned long vmalloc_to_mfn(void *address)
static unsigned long vmalloc_to_gfn(void *address)
{
return pfn_to_gfn(vmalloc_to_pfn(address));
return xen_page_to_gfn(vmalloc_to_page(address));
}
static void xenfb_init_shared_page(struct xenfb_info *info,
struct fb_info *fb_info)
{
int i;
int epd = PAGE_SIZE / sizeof(info->mfns[0]);
int epd = PAGE_SIZE / sizeof(info->gfns[0]);
for (i = 0; i < info->nr_pages; i++)
info->mfns[i] = vmalloc_to_mfn(info->fb + i * PAGE_SIZE);
info->gfns[i] = vmalloc_to_gfn(info->fb + i * PAGE_SIZE);
for (i = 0; i * epd < info->nr_pages; i++)
info->page->pd[i] = vmalloc_to_mfn(&info->mfns[i * epd]);
info->page->pd[i] = vmalloc_to_gfn(&info->gfns[i * epd]);
info->page->width = fb_info->var.xres;
info->page->height = fb_info->var.yres;