parisc: fbdev/stifb: Align graphics memory size to 4MB

Independend of the current graphics resolution, adjust the reported
graphics card memory size to the next 4MB boundary.
This fixes the fbtest program which expects a naturally aligned size.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org>

diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c
index 38a861e22c339e1102e4504095f0dad804415e73..7753e586e65a0359cbe4463f0c10cf5a7d84d3e0 100644 (file)
--- a/drivers/video/fbdev/stifb.c
+++ b/drivers/video/fbdev/stifb.c
@@ -1298,7 +1298,7 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref)
        
        /* limit fbsize to max visible screen size */
        if (fix->smem_len > yres*fix->line_length)
-               fix->smem_len = yres*fix->line_length;
+               fix->smem_len = ALIGN(yres*fix->line_length, 4*1024*1024);
        
        fix->accel = FB_ACCEL_NONE;