From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761838Ab2COM2b (ORCPT ); Thu, 15 Mar 2012 08:28:31 -0400 Received: from mail-pz0-f52.google.com ([209.85.210.52]:58964 "EHLO mail-pz0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761827Ab2COM22 (ORCPT ); Thu, 15 Mar 2012 08:28:28 -0400 Date: Thu, 15 Mar 2012 21:28:16 +0900 From: Yoichi Yuasa To: alan@linux.intel.com Cc: yuasa@linux-mips.org, linux-kernel@vger.kernel.org, linux-fbdev@vger.kernel.org Subject: [PATCH] gma500: Fix mmap frambuffer Message-Id: <20120315212816.475b0b18.yuasa@linux-mips.org> X-Mailer: Sylpheed 3.0.2 (GTK+ 2.20.1; i486-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It cannot map correctly if page fault begins from a intermediate address. Signed-off-by: Yoichi Yuasa --- drivers/gpu/drm/gma500/framebuffer.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c index be61673..5154493 100644 --- a/drivers/gpu/drm/gma500/framebuffer.c +++ b/drivers/gpu/drm/gma500/framebuffer.c @@ -158,7 +158,7 @@ static int psbfb_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf) unsigned long phys_addr = (unsigned long)dev_priv->stolen_base; page_num = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; - address = (unsigned long)vmf->virtual_address; + address = (unsigned long)vmf->virtual_address - (vmf->pgoff << PAGE_SHIFT); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); -- 1.7.0.4