Split intel_modeset_driver_remove() to two, the part with working irqs
before irq uninstall, and the part after irq uninstall. Move
irq_unintall() closer to the layer it belongs.
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.
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_display.c | 12 +++++-------
drivers/gpu/drm/i915/display/intel_display.h | 1 +
drivers/gpu/drm/i915/i915_drv.c | 5 +++++
3 files changed, 11 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index e09d3c93c52b..d9c1c952a27d 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -18898,6 +18898,7 @@ static void intel_hpd_poll_fini(struct drm_i915_private *i915)
drm_connector_list_iter_end(&conn_iter);
}
+/* part #1: call before irq uninstall */
void intel_modeset_driver_remove(struct drm_i915_private *i915)
{
flush_workqueue(i915->flip_wq);
@@ -18905,14 +18906,11 @@ void intel_modeset_driver_remove(struct drm_i915_private *i915)
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_noirq(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 75438a136d58..f92efbbec838 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -616,6 +616,7 @@ intel_format_info_is_yuv_semiplanar(const struct drm_format_info *info,
void intel_modeset_init_hw(struct drm_i915_private *i915);
int intel_modeset_init(struct drm_i915_private *i915);
void intel_modeset_driver_remove(struct drm_i915_private *i915);
+void intel_modeset_driver_remove_noirq(struct drm_i915_private *i915);
void intel_display_resume(struct drm_device *dev);
void intel_init_pch_refclk(struct drm_i915_private *dev_priv);
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 955f52bcd6a2..4636d723d531 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -333,6 +333,9 @@ static int i915_driver_modeset_probe(struct drm_i915_private *i915)
i915_gem_driver_release(i915);
cleanup_modeset:
intel_modeset_driver_remove(i915);
+ intel_irq_uninstall(i915);
+ intel_modeset_driver_remove_noirq(i915);
+ goto cleanup_csr;
cleanup_irq:
intel_irq_uninstall(i915);
cleanup_csr:
@@ -349,6 +352,8 @@ static void i915_driver_modeset_remove(struct drm_i915_private *i915)
intel_irq_uninstall(i915);
+ intel_modeset_driver_remove_noirq(i915);
+
intel_bios_driver_remove(i915);
intel_vga_unregister(i915);
--
2.20.1
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