drm/i915/irq: make gen2_irq_init()/gen2_irq_reset() static

The gen2 irq functions aren't used outside of i915_irq.h. Make them
static, and remove the useless macro wrappers.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b28f45ef4ef69ab7a6f96ffa3fa3118994667332.1667383630.git.jani.nikula@intel.com

drivers/gpu/drm/i915/i915_irq.c

@@ -248,7 +248,7 @@ void gen3_irq_reset(struct intel_uncore *uncore, i915_reg_t imr,
 	intel_uncore_posting_read(uncore, iir);
 }
 
-void gen2_irq_reset(struct intel_uncore *uncore)
+static void gen2_irq_reset(struct intel_uncore *uncore)
 {
 	intel_uncore_write16(uncore, GEN2_IMR, 0xffff);
 	intel_uncore_posting_read16(uncore, GEN2_IMR);
@@ -309,8 +309,8 @@ void gen3_irq_init(struct intel_uncore *uncore,
 	intel_uncore_posting_read(uncore, imr);
 }
 
-void gen2_irq_init(struct intel_uncore *uncore,
-		   u32 imr_val, u32 ier_val)
+static void gen2_irq_init(struct intel_uncore *uncore,
+			  u32 imr_val, u32 ier_val)
 {
 	gen2_assert_iir_is_zero(uncore);
 
@@ -3871,7 +3871,7 @@ static void i8xx_irq_reset(struct drm_i915_private *dev_priv)
 
 	i9xx_pipestat_irq_reset(dev_priv);
 
-	GEN2_IRQ_RESET(uncore);
+	gen2_irq_reset(uncore);
 	dev_priv->irq_mask = ~0u;
 }
 
@@ -3897,7 +3897,7 @@ static void i8xx_irq_postinstall(struct drm_i915_private *dev_priv)
 		I915_MASTER_ERROR_INTERRUPT |
 		I915_USER_INTERRUPT;
 
-	GEN2_IRQ_INIT(uncore, dev_priv->irq_mask, enable_mask);
+	gen2_irq_init(uncore, dev_priv->irq_mask, enable_mask);
 
 	/* Interrupt setup is already guaranteed to be single-threaded, this is
 	 * just to make the assert_spin_locked check happy. */

drivers/gpu/drm/i915/i915_irq.h

@@ -90,12 +90,9 @@ void i965_disable_vblank(struct drm_crtc *crtc);
 void ilk_disable_vblank(struct drm_crtc *crtc);
 void bdw_disable_vblank(struct drm_crtc *crtc);
 
-void gen2_irq_reset(struct intel_uncore *uncore);
 void gen3_irq_reset(struct intel_uncore *uncore, i915_reg_t imr,
 		    i915_reg_t iir, i915_reg_t ier);
 
-void gen2_irq_init(struct intel_uncore *uncore,
-		   u32 imr_val, u32 ier_val);
 void gen3_irq_init(struct intel_uncore *uncore,
 		   i915_reg_t imr, u32 imr_val,
 		   i915_reg_t ier, u32 ier_val,
@@ -111,9 +108,6 @@ void gen3_irq_init(struct intel_uncore *uncore,
 #define GEN3_IRQ_RESET(uncore, type) \
 	gen3_irq_reset((uncore), type##IMR, type##IIR, type##IER)
 
-#define GEN2_IRQ_RESET(uncore) \
-	gen2_irq_reset(uncore)
-
 #define GEN8_IRQ_INIT_NDX(uncore, type, which, imr_val, ier_val) \
 ({ \
 	unsigned int which_ = which; \
@@ -129,7 +123,4 @@ void gen3_irq_init(struct intel_uncore *uncore,
 		      type##IER, ier_val, \
 		      type##IIR)
 
-#define GEN2_IRQ_INIT(uncore, imr_val, ier_val) \
-	gen2_irq_init((uncore), imr_val, ier_val)
-
 #endif /* __I915_IRQ_H__ */