linux-kernel - Revert "intel_agp: fix stolen mem range on G33"

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Date:	Sat, 6 Oct 2007 01:42:34 -0400
From:	Kyle McMartin <kyle@...artin.ca>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	dri-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
	airlied@...ux.ie, arashi@...redchao.net
Subject: Revert "intel_agp: fix stolen mem range on G33"

This reverts commit f443675affe3f16dd428e46f0f7fd3f4d703eeab, which
breaks horribly if you aren't running an unreleased xf86-video-intel
driver out of git.

Conflicts:

	drivers/char/agp/intel-agp.c

Signed-off-by: Kyle McMartin <kyle@...artin.ca>
---

 drivers/char/agp/intel-agp.c |    5 -----
 1 files changed, 0 insertions(+), 5 deletions(-)

diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index a5d0e95..141ca17 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -506,11 +506,6 @@ static void intel_i830_init_gtt_entries(void)
 			break;
 		}
 	} else {
-		/* G33's GTT stolen memory is separate from gfx data
-		 * stolen memory.
-		 */
-		if (IS_G33)
-			size = 0;
 		switch (gmch_ctrl & I855_GMCH_GMS_MASK) {
 		case I855_GMCH_GMS_STOLEN_1M:
 			gtt_entries = MB(1) - KB(size);
-- 
1.5.3.3

On Sat, Oct 06, 2007 at 01:34:10AM -0400, Kyle McMartin wrote:
> On Sat, Oct 06, 2007 at 12:42:21AM -0400, Kyle McMartin wrote:
> > commit f443675affe3f16dd428e46f0f7fd3f4d703eeab
> >     intel_agp: fix stolen mem range on G33
> >     G33 GTT stolen memory is below graphics data stolen memory and be seperate,
> >     so don't subtract it in stolen mem counting.
> >     
> 
> Found it, without this corresponding change to xf86-video-intel, this
> breaks utterly:
> 
> commit 2a8592f2ebcba86b1127aa889155d58a3dc186ca
> Author: Zhenyu Wang <zhenyu.z.wang@...el.com>
> Date:   Wed Sep 5 14:52:56 2007 +0800
> 
>     Fix G33 GTT stolen mem range
>     
>     G33 GTT table lives in seperate stolen mem with
>     graphics data stolen mem.
> 
> I think this should be reverted for 2.6.23, it certainly doesn't seem to have
> been appropriate for 2.6.23-rc6.
> 
> Cheers,
> 	Kyle M.
> -
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