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authorImre Deak <[email protected]>2016-01-29 14:52:28 +0200
committerImre Deak <[email protected]>2016-02-02 18:28:28 +0200
commitb074eae12f1e9f8eb1aafa3d7b922427f9b8e68a (patch)
treec7601fc42c7ff302c0996e6d12d0ab51ceae4c82
parent9c06f6744d663205395f88d98aef87edcd3ce5bd (diff)
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 <[email protected]> Reviewed-by: David Weinehall <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
-rw-r--r--drivers/gpu/drm/i915/i915_dma.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 4e3c7418729f..a42eb58f7c41 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -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);