i915: add newline to i915_gem_object_pin failure msg

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / i915 / i915_irq.c

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 0cadafbef411ba094d020d1323f66f136ba0d1bd..87b6b603469ea278780af278fb9b7dc92d013ed0 100644 (file)
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -174,6 +174,19 @@ u32 i915_get_vblank_counter(struct drm_device *dev, int pipe)
        return count;
 }
 
+u32 gm45_get_vblank_counter(struct drm_device *dev, int pipe)
+{
+       drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
+       int reg = pipe ? PIPEB_FRMCOUNT_GM45 : PIPEA_FRMCOUNT_GM45;
+
+       if (!i915_pipe_enabled(dev, pipe)) {
+               DRM_ERROR("trying to get vblank count for disabled pipe %d\n", pipe);
+               return 0;
+       }
+
+       return I915_READ(reg);
+}
+
 irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
 {
        struct drm_device *dev = (struct drm_device *) arg;
@@ -370,12 +383,13 @@ int i915_irq_emit(struct drm_device *dev, void *data,
        drm_i915_irq_emit_t *emit = data;
        int result;
 
-       RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
-
        if (!dev_priv) {
                DRM_ERROR("called with no initialization\n");
                return -EINVAL;
        }
+
+       RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
+
        mutex_lock(&dev->struct_mutex);
        result = i915_emit_irq(dev);
        mutex_unlock(&dev->struct_mutex);
@@ -411,6 +425,12 @@ int i915_enable_vblank(struct drm_device *dev, int pipe)
 {
        drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
        unsigned long irqflags;
+       int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF;
+       u32 pipeconf;
+
+       pipeconf = I915_READ(pipeconf_reg);
+       if (!(pipeconf & PIPEACONF_ENABLE))
+               return -EINVAL;
 
        spin_lock_irqsave(&dev_priv->user_irq_lock, irqflags);
        if (IS_I965G(dev))