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Re: [Xen-devel] [Solved] Nouveau on dom0

To: Arvind R <arvino55@xxxxxxxxx>
Subject: Re: [Xen-devel] [Solved] Nouveau on dom0
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Wed, 10 Mar 2010 11:37:58 -0800
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
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On 03/10/2010 04:50 AM, Arvind R wrote:
On Mon, Mar 8, 2010 at 11:21 PM, Konrad Rzeszutek Wilk
<konrad.wilk@xxxxxxxxxx>  wrote:
On Sun, Mar 07, 2010 at 05:26:12AM +0530, Arvind R wrote:
On Sun, Mar 7, 2010 at 2:29 AM, Arvind R<arvino55@xxxxxxxxx>  wrote:
On Sat, Mar 6, 2010 at 1:46 PM, Arvind R<arvino55@xxxxxxxxx>  wrote:
On Sat, Mar 6, 2010 at 1:53 AM, Konrad Rzeszutek Wilk
<konrad.wilk@xxxxxxxxxx>  wrote:
On Fri, Mar 05, 2010 at 01:16:13PM +0530, Arvind R wrote:
On Thu, Mar 4, 2010 at 11:55 PM, Konrad Rzeszutek Wilk
<konrad.wilk@xxxxxxxxxx>  wrote:
On Thu, Mar 04, 2010 at 02:47:58PM +0530, Arvind R wrote:
On Wed, Mar 3, 2010 at 11:43 PM, Konrad Rzeszutek Wilk
<konrad.wilk@xxxxxxxxxx>  wrote:
(FYI, look at
THAT SOLVED THE FAULTING; OUT_RING now completes under Xen.
That is great! Thanks for doing all the hard-work in digging through the

So this means you got graphics on the screen? Or at least that Kernel
Mode Setting and the DRM parts show fancy graphics during boot?
AT LAST, yes! Patch: (after aboout 600 reboots!)

diff -Naur nouveau-kernel.orig/drivers/gpu/drm/ttm/ttm_bo_vm.c
--- nouveau-kernel.orig/drivers/gpu/drm/ttm/ttm_bo_vm.c 2010-01-27
10:19:28.000000000 +0530
+++ nouveau-kernel.new/drivers/gpu/drm/ttm/ttm_bo_vm.c  2010-03-10
17:28:59.000000000 +0530
@@ -271,7 +271,10 @@

         vma->vm_private_data = bo;
-       vma->vm_flags |= VM_RESERVED | VM_IO | VM_MIXEDMAP | VM_DONTEXPAND;
+       vma->vm_flags |= VM_RESERVED | VM_MIXEDMAP | VM_DONTEXPAND;
+       if (!((bo->mem.placement&  TTM_PL_MASK_MEM)&  TTM_PL_FLAG_TT))
+               vma->vm_flags |= VM_IO;
+       vma->vm_page_prot = vma_get_vm_prot(vma->vm_flags);
         return 0;

Cool, nice and simple. Can you write it up as a proper patch for submission to upstream?


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