[PATCH 28/43] drm/i915: Turn GEN5_ASSERT_IIR_IS_ZERO() into a function

ville.syrjala
2015-09-18T17:05:52Z

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
drivers/gpu/drm/i915/i915_irq.c | 31 +++++++++++++++++--------------
1 file changed, 17 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 16948b2..24f68de 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -139,27 +139,30 @@ static const u32 hpd_bxt[HPD_NUM_PINS] = {
/*
* We should clear IMR at preinstall/uninstall, and just check at postinstall.
*/
-#define GEN5_ASSERT_IIR_IS_ZERO(reg) do { \
- u32 val = I915_READ(reg); \
- if (val) { \
- WARN(1, "Interrupt register 0x%x is not zero: 0x%08x\n", \
- (reg), val); \
- I915_WRITE((reg), 0xffffffff); \
- POSTING_READ(reg); \
- I915_WRITE((reg), 0xffffffff); \
- POSTING_READ(reg); \
- } \
-} while (0)
+static void gen5_assert_iir_is_zero(struct drm_i915_private *dev_priv, u32 reg)
+{
+ u32 val = I915_READ(reg);
+
+ if (val == 0)
+ return;
+
+ WARN(1, "Interrupt register 0x%x is not zero: 0x%08x\n",
+ reg, val);
+ I915_WRITE(reg, 0xffffffff);
+ POSTING_READ(reg);
+ I915_WRITE(reg, 0xffffffff);
+ POSTING_READ(reg);
+}

#define GEN8_IRQ_INIT_NDX(type, which, imr_val, ier_val) do { \
- GEN5_ASSERT_IIR_IS_ZERO(GEN8_##type##_IIR(which)); \
+ gen5_assert_iir_is_zero(dev_priv, GEN8_##type##_IIR(which)); \
I915_WRITE(GEN8_##type##_IER(which), (ier_val)); \
I915_WRITE(GEN8_##type##_IMR(which), (imr_val)); \
POSTING_READ(GEN8_##type##_IMR(which)); \
} while (0)

#define GEN5_IRQ_INIT(type, imr_val, ier_val) do { \
- GEN5_ASSERT_IIR_IS_ZERO(type##IIR); \
+ gen5_assert_iir_is_zero(dev_priv, type##IIR); \
I915_WRITE(type##IER, (ier_val)); \
I915_WRITE(type##IMR, (imr_val)); \
POSTING_READ(type##IMR); \
@@ -3276,7 +3279,7 @@ static void ibx_irq_postinstall(struct drm_device *dev)
else
mask = SDE_GMBUS_CPT | SDE_AUX_MASK_CPT;

- GEN5_ASSERT_IIR_IS_ZERO(SDEIIR);
+ gen5_assert_iir_is_zero(dev_priv, SDEIIR);
I915_WRITE(SDEIMR, ~mask);
}

--
2.4.6