[RFC v2 06/10] drm/i915: reduce the dev_priv->uncore dance in uncore.c
Daniele Ceraolo Spurio
daniele.ceraolospurio at intel.com
Fri Mar 15 16:59:54 UTC 2019
Use a local variable where it makes sense.
Cc: Paulo Zanoni <paulo.r.zanoni at intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
---
drivers/gpu/drm/i915/intel_uncore.c | 79 ++++++++++++++++-------------
1 file changed, 43 insertions(+), 36 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index afbbefc32227..32c75337b96d 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -311,6 +311,7 @@ static inline u32 fifo_free_entries(struct drm_i915_private *dev_priv)
static void __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv)
{
+ struct intel_uncore *uncore = &dev_priv->uncore;
u32 n;
/* On VLV, FIFO will be shared by both SW and HW.
@@ -318,7 +319,7 @@ static void __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv)
if (IS_VALLEYVIEW(dev_priv))
n = fifo_free_entries(dev_priv);
else
- n = dev_priv->uncore.fifo_count;
+ n = uncore->fifo_count;
if (n <= GT_FIFO_NUM_RESERVED_ENTRIES) {
if (wait_for_atomic((n = fifo_free_entries(dev_priv)) >
@@ -329,7 +330,7 @@ static void __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv)
}
}
- dev_priv->uncore.fifo_count = n - 1;
+ uncore->fifo_count = n - 1;
}
static enum hrtimer_restart
@@ -793,7 +794,7 @@ void assert_forcewakes_active(struct intel_uncore *uncore,
#define GEN11_NEEDS_FORCE_WAKE(reg) \
((reg) < 0x40000 || ((reg) >= 0x1c0000 && (reg) < 0x1dc000))
-#define __gen6_reg_read_fw_domains(offset) \
+#define __gen6_reg_read_fw_domains(uncore, offset) \
({ \
enum forcewake_domains __fwd; \
if (NEEDS_FORCE_WAKE(offset)) \
@@ -879,19 +880,19 @@ static const struct intel_forcewake_range __vlv_fw_ranges[] = {
GEN_FW_RANGE(0x30000, 0x3ffff, FORCEWAKE_MEDIA),
};
-#define __fwtable_reg_read_fw_domains(offset) \
+#define __fwtable_reg_read_fw_domains(uncore, offset) \
({ \
enum forcewake_domains __fwd = 0; \
if (NEEDS_FORCE_WAKE((offset))) \
- __fwd = find_fw_domain(&dev_priv->uncore, offset); \
+ __fwd = find_fw_domain(uncore, offset); \
__fwd; \
})
-#define __gen11_fwtable_reg_read_fw_domains(offset) \
+#define __gen11_fwtable_reg_read_fw_domains(uncore, offset) \
({ \
enum forcewake_domains __fwd = 0; \
if (GEN11_NEEDS_FORCE_WAKE((offset))) \
- __fwd = find_fw_domain(&dev_priv->uncore, offset); \
+ __fwd = find_fw_domain(uncore, offset); \
__fwd; \
})
@@ -943,7 +944,7 @@ static bool is_gen##x##_shadowed(u32 offset) \
__is_genX_shadowed(8)
__is_genX_shadowed(11)
-#define __gen8_reg_write_fw_domains(offset) \
+#define __gen8_reg_write_fw_domains(uncore, offset) \
({ \
enum forcewake_domains __fwd; \
if (NEEDS_FORCE_WAKE(offset) && !is_gen8_shadowed(offset)) \
@@ -973,19 +974,19 @@ static const struct intel_forcewake_range __chv_fw_ranges[] = {
GEN_FW_RANGE(0x30000, 0x37fff, FORCEWAKE_MEDIA),
};
-#define __fwtable_reg_write_fw_domains(offset) \
+#define __fwtable_reg_write_fw_domains(uncore, offset) \
({ \
enum forcewake_domains __fwd = 0; \
if (NEEDS_FORCE_WAKE((offset)) && !is_gen8_shadowed(offset)) \
- __fwd = find_fw_domain(&dev_priv->uncore, offset); \
+ __fwd = find_fw_domain(uncore, offset); \
__fwd; \
})
-#define __gen11_fwtable_reg_write_fw_domains(offset) \
+#define __gen11_fwtable_reg_write_fw_domains(uncore, offset) \
({ \
enum forcewake_domains __fwd = 0; \
if (GEN11_NEEDS_FORCE_WAKE((offset)) && !is_gen11_shadowed(offset)) \
- __fwd = find_fw_domain(&dev_priv->uncore, offset); \
+ __fwd = find_fw_domain(uncore, offset); \
__fwd; \
})
@@ -1135,16 +1136,17 @@ __gen2_read(64)
#undef GEN2_READ_HEADER
#define GEN6_READ_HEADER(x) \
+ struct intel_uncore *uncore = &dev_priv->uncore; \
u32 offset = i915_mmio_reg_offset(reg); \
unsigned long irqflags; \
u##x val = 0; \
assert_rpm_wakelock_held(dev_priv); \
- spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); \
+ spin_lock_irqsave(&uncore->lock, irqflags); \
unclaimed_reg_debug(dev_priv, reg, true, true)
#define GEN6_READ_FOOTER \
unclaimed_reg_debug(dev_priv, reg, true, false); \
- spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags); \
+ spin_unlock_irqrestore(&uncore->lock, irqflags); \
trace_i915_reg_rw(false, reg, val, sizeof(val), trace); \
return val
@@ -1181,9 +1183,9 @@ static u##x \
func##_read##x(struct drm_i915_private *dev_priv, i915_reg_t reg, bool trace) { \
enum forcewake_domains fw_engine; \
GEN6_READ_HEADER(x); \
- fw_engine = __##func##_reg_read_fw_domains(offset); \
+ fw_engine = __##func##_reg_read_fw_domains(uncore, offset); \
if (fw_engine) \
- __force_wake_auto(&dev_priv->uncore, fw_engine); \
+ __force_wake_auto(uncore, fw_engine); \
val = __raw_i915_read##x(dev_priv, reg); \
GEN6_READ_FOOTER; \
}
@@ -1247,16 +1249,17 @@ __gen2_write(32)
#undef GEN2_WRITE_HEADER
#define GEN6_WRITE_HEADER \
+ struct intel_uncore *uncore = &dev_priv->uncore; \
u32 offset = i915_mmio_reg_offset(reg); \
unsigned long irqflags; \
trace_i915_reg_rw(true, reg, val, sizeof(val), trace); \
assert_rpm_wakelock_held(dev_priv); \
- spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); \
+ spin_lock_irqsave(&uncore->lock, irqflags); \
unclaimed_reg_debug(dev_priv, reg, false, true)
#define GEN6_WRITE_FOOTER \
unclaimed_reg_debug(dev_priv, reg, false, false); \
- spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags)
+ spin_unlock_irqrestore(&uncore->lock, irqflags)
#define __gen6_write(x) \
static void \
@@ -1273,9 +1276,9 @@ static void \
func##_write##x(struct drm_i915_private *dev_priv, i915_reg_t reg, u##x val, bool trace) { \
enum forcewake_domains fw_engine; \
GEN6_WRITE_HEADER; \
- fw_engine = __##func##_reg_write_fw_domains(offset); \
+ fw_engine = __##func##_reg_write_fw_domains(uncore, offset); \
if (fw_engine) \
- __force_wake_auto(&dev_priv->uncore, fw_engine); \
+ __force_wake_auto(uncore, fw_engine); \
__raw_i915_write##x(dev_priv, reg, val); \
GEN6_WRITE_FOOTER; \
}
@@ -1790,6 +1793,7 @@ int __intel_wait_for_register(struct drm_i915_private *dev_priv,
unsigned int slow_timeout_ms,
u32 *out_value)
{
+ struct intel_uncore *uncore = &dev_priv->uncore;
unsigned fw =
intel_uncore_forcewake_for_reg(dev_priv, reg, FW_REG_READ);
u32 reg_value;
@@ -1797,15 +1801,15 @@ int __intel_wait_for_register(struct drm_i915_private *dev_priv,
might_sleep_if(slow_timeout_ms);
- spin_lock_irq(&dev_priv->uncore.lock);
- intel_uncore_forcewake_get__locked(&dev_priv->uncore, fw);
+ spin_lock_irq(&uncore->lock);
+ intel_uncore_forcewake_get__locked(uncore, fw);
ret = __intel_wait_for_register_fw(dev_priv,
reg, mask, value,
fast_timeout_us, 0, ®_value);
- intel_uncore_forcewake_put__locked(&dev_priv->uncore, fw);
- spin_unlock_irq(&dev_priv->uncore.lock);
+ intel_uncore_forcewake_put__locked(uncore, fw);
+ spin_unlock_irq(&uncore->lock);
if (ret && slow_timeout_ms)
ret = __wait_for(reg_value = I915_READ_NOTRACE(reg),
@@ -1829,11 +1833,12 @@ bool intel_uncore_unclaimed_mmio(struct drm_i915_private *dev_priv)
bool
intel_uncore_arm_unclaimed_mmio_detection(struct drm_i915_private *dev_priv)
{
+ struct intel_uncore *uncore = &dev_priv->uncore;
bool ret = false;
- spin_lock_irq(&dev_priv->uncore.lock);
+ spin_lock_irq(&uncore->lock);
- if (unlikely(dev_priv->uncore.unclaimed_mmio_check <= 0))
+ if (unlikely(uncore->unclaimed_mmio_check <= 0))
goto out;
if (unlikely(intel_uncore_unclaimed_mmio(dev_priv))) {
@@ -1843,12 +1848,12 @@ intel_uncore_arm_unclaimed_mmio_detection(struct drm_i915_private *dev_priv)
"Please use i915.mmio_debug=N for more information.\n");
i915_modparams.mmio_debug++;
}
- dev_priv->uncore.unclaimed_mmio_check--;
+ uncore->unclaimed_mmio_check--;
ret = true;
}
out:
- spin_unlock_irq(&dev_priv->uncore.lock);
+ spin_unlock_irq(&uncore->lock);
return ret;
}
@@ -1857,21 +1862,22 @@ static enum forcewake_domains
intel_uncore_forcewake_for_read(struct drm_i915_private *dev_priv,
i915_reg_t reg)
{
+ struct intel_uncore *uncore = &dev_priv->uncore;
u32 offset = i915_mmio_reg_offset(reg);
enum forcewake_domains fw_domains;
if (INTEL_GEN(dev_priv) >= 11) {
- fw_domains = __gen11_fwtable_reg_read_fw_domains(offset);
+ fw_domains = __gen11_fwtable_reg_read_fw_domains(uncore, offset);
} else if (HAS_FWTABLE(dev_priv)) {
- fw_domains = __fwtable_reg_read_fw_domains(offset);
+ fw_domains = __fwtable_reg_read_fw_domains(uncore, offset);
} else if (INTEL_GEN(dev_priv) >= 6) {
- fw_domains = __gen6_reg_read_fw_domains(offset);
+ fw_domains = __gen6_reg_read_fw_domains(uncore, offset);
} else {
WARN_ON(!IS_GEN_RANGE(dev_priv, 2, 5));
fw_domains = 0;
}
- WARN_ON(fw_domains & ~dev_priv->uncore.fw_domains);
+ WARN_ON(fw_domains & ~uncore->fw_domains);
return fw_domains;
}
@@ -1880,15 +1886,16 @@ static enum forcewake_domains
intel_uncore_forcewake_for_write(struct drm_i915_private *dev_priv,
i915_reg_t reg)
{
+ struct intel_uncore *uncore = &dev_priv->uncore;
u32 offset = i915_mmio_reg_offset(reg);
enum forcewake_domains fw_domains;
if (INTEL_GEN(dev_priv) >= 11) {
- fw_domains = __gen11_fwtable_reg_write_fw_domains(offset);
+ fw_domains = __gen11_fwtable_reg_write_fw_domains(uncore, offset);
} else if (HAS_FWTABLE(dev_priv) && !IS_VALLEYVIEW(dev_priv)) {
- fw_domains = __fwtable_reg_write_fw_domains(offset);
+ fw_domains = __fwtable_reg_write_fw_domains(uncore, offset);
} else if (IS_GEN(dev_priv, 8)) {
- fw_domains = __gen8_reg_write_fw_domains(offset);
+ fw_domains = __gen8_reg_write_fw_domains(uncore, offset);
} else if (IS_GEN_RANGE(dev_priv, 6, 7)) {
fw_domains = FORCEWAKE_RENDER;
} else {
@@ -1896,7 +1903,7 @@ intel_uncore_forcewake_for_write(struct drm_i915_private *dev_priv,
fw_domains = 0;
}
- WARN_ON(fw_domains & ~dev_priv->uncore.fw_domains);
+ WARN_ON(fw_domains & ~uncore->fw_domains);
return fw_domains;
}
--
2.20.1
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