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[01/20] drm/i915: add GEN5_IRQ_INIT macro

Message ID 1394233836-3827-2-git-send-email-przanoni@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Paulo Zanoni March 7, 2014, 11:10 p.m. UTC 
From: Paulo Zanoni <paulo.r.zanoni@intel.com>

The goal is to reuse the GEN8 macros, but a few changes are needed, so
let's make things easier to review.

I could also use these macros on older code, but since I plan to
change how the interrupts are initialized, we'll risk breaking the
older code in the next commits, so I'll leave this out for now.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
---
 drivers/gpu/drm/i915/i915_irq.c | 24 ++++++++++--------------
 1 file changed, 10 insertions(+), 14 deletions(-)
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Patch

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index a5df448..30c44fb 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -80,6 +80,12 @@  static const u32 hpd_status_i915[] = { /* i915 and valleyview are the same */
 	[HPD_PORT_D] = PORTD_HOTPLUG_INT_STATUS
 };
 
+#define GEN5_IRQ_INIT(type) do { \
+	I915_WRITE(type##IMR, 0xffffffff); \
+	I915_WRITE(type##IER, 0); \
+	POSTING_READ(type##IER); \
+} while (0)
+
 /* For display hotplug interrupt */
 static void
 ironlake_enable_display_irq(drm_i915_private_t *dev_priv, u32 mask)
@@ -2781,17 +2787,9 @@  static void gen5_gt_irq_preinstall(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 
-	/* and GT */
-	I915_WRITE(GTIMR, 0xffffffff);
-	I915_WRITE(GTIER, 0x0);
-	POSTING_READ(GTIER);
-
-	if (INTEL_INFO(dev)->gen >= 6) {
-		/* and PM */
-		I915_WRITE(GEN6_PMIMR, 0xffffffff);
-		I915_WRITE(GEN6_PMIER, 0x0);
-		POSTING_READ(GEN6_PMIER);
-	}
+	GEN5_IRQ_INIT(GT);
+	if (INTEL_INFO(dev)->gen >= 6)
+		GEN5_IRQ_INIT(GEN6_PM);
 }
 
 /* drm_dma.h hooks
@@ -2802,9 +2800,7 @@  static void ironlake_irq_preinstall(struct drm_device *dev)
 
 	I915_WRITE(HWSTAM, 0xeffe);
 
-	I915_WRITE(DEIMR, 0xffffffff);
-	I915_WRITE(DEIER, 0x0);
-	POSTING_READ(DEIER);
+	GEN5_IRQ_INIT(DE);
 
 	gen5_gt_irq_preinstall(dev);