This is a note to let you know that I've just added the patch titled
drm/nouveau: headless mode by default if pci class != vga display
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-nouveau-headless-mode-by-default-if-pci-class-vga-display.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From [email protected] Fri Nov 2 09:59:13 2012
From: Ben Skeggs <[email protected]>
Date: Thu, 1 Nov 2012 16:16:32 +1000
Subject: drm/nouveau: headless mode by default if pci class != vga display
To: [email protected]
Cc: Ben Skeggs <[email protected]>
From: Ben Skeggs <[email protected]>
This is to prevent nouveau from taking over the console on headless boards
such as Tesla.
Backport of upstream commit: e412e95a268fa8544858ebfe066826b290430d51
Signed-off-by: Ben Skeggs <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
--- a/drivers/gpu/drm/nouveau/nouveau_drv.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.c
@@ -488,9 +488,7 @@ static int __init nouveau_init(void)
#ifdef CONFIG_VGA_CONSOLE
if (vgacon_text_force())
nouveau_modeset = 0;
- else
#endif
- nouveau_modeset = 1;
}
if (!nouveau_modeset)
diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c
b/drivers/gpu/drm/nouveau/nouveau_state.c
index c610144..f5e9584 100644
--- a/drivers/gpu/drm/nouveau/nouveau_state.c
+++ b/drivers/gpu/drm/nouveau/nouveau_state.c
@@ -50,6 +50,7 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_engine *engine = &dev_priv->engine;
+ u32 pclass = dev->pdev->class >> 8;
switch (dev_priv->chipset & 0xf0) {
case 0x00:
@@ -428,7 +429,8 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
}
/* headless mode */
- if (nouveau_modeset == 2) {
+ if (nouveau_modeset == 2 ||
+ (nouveau_modeset < 0 && pclass != PCI_CLASS_DISPLAY_VGA)) {
engine->display.early_init = nouveau_stub_init;
engine->display.late_takedown = nouveau_stub_takedown;
engine->display.create = nouveau_stub_init;
--
1.7.12.4
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Patches currently in stable-queue which might be from [email protected] are
queue-3.4/drm-nouveau-headless-mode-by-default-if-pci-class-vga-display.patch
queue-3.4/drm-nouveau-fix-suspend-resume-when-in-headless-mode.patch
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