Split intel_modeset_driver_remove() to two, the part with working irqs
before irq uninstall, and the part after irq uninstall.
The error path in i915_driver_modeset_probe() looks obviously weird
after this, but remains as good or broken as it ever was. No functional
changes.
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_display.c | 14 ++++++--------
drivers/gpu/drm/i915/display/intel_display.h | 1 +
drivers/gpu/drm/i915/i915_drv.c | 5 +++++
3 files changed, 12 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 78edb5e66cdb..2c474be4a011 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -17054,21 +17054,19 @@ static void intel_hpd_poll_fini(struct drm_i915_private *i915)
drm_connector_list_iter_end(&conn_iter);
}
-void intel_modeset_driver_remove(struct drm_i915_private *i915)
+/* part #1: call before irq uninstall */
+void intel_modeset_driver_remove_irq(struct drm_i915_private *i915)
{
flush_workqueue(i915->flip_wq);
flush_workqueue(i915->modeset_wq);
flush_work(&i915->atomic_helper.free_work);
WARN_ON(!llist_empty(&i915->atomic_helper.free_list));
+}
- /*
- * Interrupts and polling as the first thing to avoid creating havoc.
- * Too much stuff here (turning of connectors, ...) would
- * experience fancy races otherwise.
- */
- intel_irq_uninstall(i915);
-
+/* part #2: call after irq uninstall */
+void intel_modeset_driver_remove(struct drm_i915_private *i915)
+{
/*
* Due to the hpd irq storm handling the hotplug work can re-arm the
* poll handlers. Hence disable polling after hpd handling is shut down.
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index 0405a74b513c..1783f4062fc9 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -574,6 +574,7 @@ void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
/* modesetting */
void intel_modeset_init_hw(struct drm_i915_private *i915);
int intel_modeset_init(struct drm_i915_private *i915);
+void intel_modeset_driver_remove_irq(struct drm_i915_private *i915);
void intel_modeset_driver_remove(struct drm_i915_private *i915);
int intel_modeset_vga_set_state(struct drm_i915_private *dev_priv, bool state);
void intel_display_resume(struct drm_device *dev);
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index a9ee73b61f4d..f2af3ba24ce9 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -407,6 +407,7 @@ static int i915_driver_modeset_probe(struct drm_i915_private *i915)
i915_gem_driver_remove(i915);
i915_gem_driver_release(i915);
cleanup_modeset:
+ intel_modeset_driver_remove_irq(i915);
intel_modeset_driver_remove(i915);
cleanup_irq:
intel_irq_uninstall(i915);
@@ -425,6 +426,10 @@ static void i915_driver_modeset_remove(struct drm_i915_private *i915)
{
struct pci_dev *pdev = i915->drm.pdev;
+ intel_modeset_driver_remove_irq(i915);
+
+ intel_irq_uninstall(i915);
+
intel_modeset_driver_remove(i915);
intel_bios_driver_remove(i915);
--
2.20.1
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