[Intel-gfx] [PATCH] drm/i915: Disable stolen on 865G

[Chris Wilson]

It appears our calculation for the address of stolen memory is incorrect
for 865G, so for the time being disable our use of that memory.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96473
Fixes: 0ad98c74e093 ("drm/i915: Deatermine the stolen memory base address...")
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Cc: stable at vger.kernel.org
---
 drivers/gpu/drm/i915/i915_gem_stolen.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
index e1791fe96674..8b501ddbc784 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -122,6 +122,7 @@ static unsigned long i915_stolen_to_physical(struct drm_device *dev)
 		 * always at TOUD? Ie. is it always the last
 		 * one to be allocated by the BIOS?
 		 */
+		if (0) /* https://bugs.freedesktop.org/show_bug.cgi?id=96473 */
 		pci_bus_read_config_word(dev->pdev->bus, PCI_DEVFN(0, 0),
 					 I865_TOUD, &toud);
 
-- 
2.8.1