diff options
Diffstat (limited to 'extras/mini-os/fbfront.c')
| -rw-r--r-- | extras/mini-os/fbfront.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/extras/mini-os/fbfront.c b/extras/mini-os/fbfront.c index bbe49b92a5..4f5041ab69 100644 --- a/extras/mini-os/fbfront.c +++ b/extras/mini-os/fbfront.c @@ -31,13 +31,6 @@ struct kbdfront_dev { char *nodename; char *backend; - char *data; - int width; - int height; - int depth; - int line_length; - int mem_length; - #ifdef HAVE_LIBC int fd; #endif @@ -316,7 +309,10 @@ struct fbfront_dev *init_fbfront(char *nodename, void *data, int width, int heig for (i = 0; mapped < mem_length && i < max_pd; i++) { unsigned long *pd = (unsigned long *) alloc_page(); for (j = 0; mapped < mem_length && j < PAGE_SIZE / sizeof(unsigned long); j++) { - pd[j] = virt_to_mfn((unsigned long) data + mapped); + /* Trigger CoW */ + * ((char *)data + mapped) = 0; + barrier(); + pd[j] = virtual_to_mfn((unsigned long) data + mapped); mapped += PAGE_SIZE; } for ( ; j < PAGE_SIZE / sizeof(unsigned long); j++) |