[PATCH] drm/i915: Drop all references to DRM IRQ midlayer

* [PATCH] drm/i915: Drop all references to DRM IRQ midlayer
@ 2021-06-25  8:47 ` Thomas Zimmermann
  0 siblings, 0 replies; 8+ messages in thread
From: Thomas Zimmermann @ 2021-06-25  8:47 UTC (permalink / raw)
  To: jani.nikula, joonas.lahtinen, rodrigo.vivi, airlied, daniel,
	chris, mika.kuoppala, matthew.brost, maarten.lankhorst,
	lucas.demarchi
  Cc: Daniel Vetter, intel-gfx, Thomas Zimmermann, dri-devel

Remove all references to DRM's IRQ midlayer.

The code in xcs_resume() probably didn't work as intended. It uses
struct drm_device.irq, which is allocated to 0, but never initialized
by i915 to the device's interrupt number.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 536f77b1caa0 ("drm/i915/gt: Call stop_ring() from ring resume, again")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
---
 drivers/gpu/drm/i915/gt/intel_ring_submission.c | 3 ++-
 drivers/gpu/drm/i915/i915_drv.c                 | 1 -
 drivers/gpu/drm/i915/i915_irq.c                 | 1 -
 3 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_ring_submission.c b/drivers/gpu/drm/i915/gt/intel_ring_submission.c
index 5d42a12ef3d6..d893aaaed74f 100644
--- a/drivers/gpu/drm/i915/gt/intel_ring_submission.c
+++ b/drivers/gpu/drm/i915/gt/intel_ring_submission.c
@@ -180,12 +180,13 @@ static bool stop_ring(struct intel_engine_cs *engine)
 static int xcs_resume(struct intel_engine_cs *engine)
 {
 	struct intel_ring *ring = engine->legacy.ring;
+	struct pci_dev *pdev = to_pci_dev(engine->i915->drm.dev);
 
 	ENGINE_TRACE(engine, "ring:{HEAD:%04x, TAIL:%04x}\n",
 		     ring->head, ring->tail);
 
 	/* Double check the ring is empty & disabled before we resume */
-	synchronize_hardirq(engine->i915->drm.irq);
+	synchronize_hardirq(pdev->irq);
 	if (!stop_ring(engine))
 		goto err;
 
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 850b499c71c8..73de45472f60 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -42,7 +42,6 @@
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_ioctl.h>
-#include <drm/drm_irq.h>
 #include <drm/drm_managed.h>
 #include <drm/drm_probe_helper.h>
 
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index a11bdb667241..eef616d96f12 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -33,7 +33,6 @@
 #include <linux/sysrq.h>
 
 #include <drm/drm_drv.h>
-#include <drm/drm_irq.h>
 
 #include "display/intel_de.h"
 #include "display/intel_display_types.h"

base-commit: 8c1323b422f8473421682ba783b5949ddd89a3f4
prerequisite-patch-id: c2b2f08f0eccc9f5df0c0da49fa1d36267deb11d
prerequisite-patch-id: c67e5d886a47b7d0266d81100837557fda34cb24
-- 
2.32.0


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