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authorDave Airlie <airlied@redhat.com>2011-04-22 01:18:32 +0400
committerDave Airlie <airlied@redhat.com>2011-04-27 11:51:59 +0400
commite8e7a2b8ccfdae0d4cb6bd25824bbedcd42da316 (patch)
tree1b2140075e01d32af330370307004b9b73a9d796 /drivers/gpu/drm/i915/intel_fb.c
parent6565945b60922211c299968ba66a66617af32c9f (diff)
downloadlinux-e8e7a2b8ccfdae0d4cb6bd25824bbedcd42da316.tar.xz
drm/i915: restore only the mode of this driver on lastclose (v2)
i915 calls the panic handler function on last close to reset the modes, however this is a really bad idea for multi-gpu machines, esp shareable gpus machines. So add a new entry point for the driver to just restore its own fbcon mode. v2: move code into fb helper, fix panic code to block mode change on powered off GPUs. [airlied: this hits drm core and I wrote it and it was reviewed on intel-gfx so really I signed it off twice ;-).] Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_fb.c')
-rw-r--r--drivers/gpu/drm/i915/intel_fb.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index 512782728e51..ec49bae73382 100644
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -264,3 +264,13 @@ void intel_fb_output_poll_changed(struct drm_device *dev)
drm_i915_private_t *dev_priv = dev->dev_private;
drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper);
}
+
+void intel_fb_restore_mode(struct drm_device *dev)
+{
+ int ret;
+ drm_i915_private_t *dev_priv = dev->dev_private;
+
+ ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper);
+ if (ret)
+ DRM_DEBUG("failed to restore crtc mode\n");
+}