Commit b074eae1 authored Jan 29, 2016 by Imre Deak

drm/i915: Add debug info for failed MSI enabling



While not being able to enable MSI interrupts may be a normal
circumstance, for debugging it may still be a useful information, so
emit an info about this.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: David Weinehall <david.weinehall@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1454071949-24677-3-git-send-email-imre.deak@intel.com

parent 9c06f674

drivers/gpu/drm/i915/i915_dma.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -1109,8 +1109,10 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
		* be lost or delayed, but we use them anyways to avoid
		* stuck interrupts on some machines.
		*/
		if (!IS_I945G(dev) && !IS_I945GM(dev))
		pci_enable_msi(dev->pdev);
		if (!IS_I945G(dev) && !IS_I945GM(dev)) {
		if (pci_enable_msi(dev->pdev) < 0)
		DRM_DEBUG_DRIVER("can't enable MSI");
		}

		intel_device_info_runtime_init(dev);