Remove a bit of pointer dancing in the reg access path.
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
Cc: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_drv.h | 17 ++++++++++++-----
drivers/gpu/drm/i915/intel_uncore.c | 16 +++++++++-------
drivers/gpu/drm/i915/intel_uncore.h | 3 +++
3 files changed, 24 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 862dc73bfbef..c41c7a64dcec 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -2270,20 +2270,27 @@ void icl_dbuf_slices_update(struct drm_i915_private *dev_priv,
u8 req_slices);
static inline void
-assert_rpm_device_not_suspended(struct drm_i915_private *i915)
+assert_rpm_device_not_suspended(struct i915_runtime_pm *rpm)
{
- WARN_ONCE(i915->runtime_pm.suspended,
+ WARN_ONCE(rpm->suspended,
"Device suspended during HW access\n");
}
static inline void
-assert_rpm_wakelock_held(struct drm_i915_private *i915)
+__assert_rpm_wakelock_held(struct i915_runtime_pm *rpm)
{
- assert_rpm_device_not_suspended(i915);
- WARN_ONCE(!atomic_read(&i915->runtime_pm.wakeref_count),
+ assert_rpm_device_not_suspended(rpm);
+ WARN_ONCE(!atomic_read(&rpm->wakeref_count),
"RPM wakelock ref not held during HW access");
}
+static inline void
+assert_rpm_wakelock_held(struct drm_i915_private *i915)
+{
+ __assert_rpm_wakelock_held(&i915->runtime_pm);
+}
+
+
/**
* disable_rpm_wakeref_asserts - disable the RPM assert checks
* @i915: i915 device instance
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 1a327828f220..527c264436dd 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -342,7 +342,7 @@ intel_uncore_fw_release_timer(struct hrtimer *timer)
struct intel_uncore *uncore = forcewake_domain_to_uncore(domain);
unsigned long irqflags;
- assert_rpm_device_not_suspended(uncore_to_i915(uncore));
+ assert_rpm_device_not_suspended(uncore->rpm);
if (xchg(&domain->active, false))
return HRTIMER_RESTART;
@@ -623,7 +623,7 @@ void intel_uncore_forcewake_get(struct intel_uncore *uncore,
if (!uncore->funcs.force_wake_get)
return;
- assert_rpm_wakelock_held(uncore_to_i915(uncore));
+ __assert_rpm_wakelock_held(uncore->rpm);
spin_lock_irqsave(&uncore->lock, irqflags);
__intel_uncore_forcewake_get(uncore, fw_domains);
@@ -777,7 +777,7 @@ void assert_forcewakes_active(struct intel_uncore *uncore,
if (!uncore->funcs.force_wake_get)
return;
- assert_rpm_wakelock_held(uncore_to_i915(uncore));
+ __assert_rpm_wakelock_held(uncore->rpm);
fw_domains &= uncore->fw_domains;
WARN(fw_domains & ~uncore->fw_domains_active,
@@ -1095,7 +1095,7 @@ unclaimed_reg_debug(struct intel_uncore *uncore,
#define GEN2_READ_HEADER(x) \
struct intel_uncore *uncore = &dev_priv->uncore; \
u##x val = 0; \
- assert_rpm_wakelock_held(dev_priv);
+ __assert_rpm_wakelock_held(uncore->rpm);
#define GEN2_READ_FOOTER \
trace_i915_reg_rw(false, reg, val, sizeof(val), trace); \
@@ -1138,7 +1138,7 @@ __gen2_read(64)
u32 offset = i915_mmio_reg_offset(reg); \
unsigned long irqflags; \
u##x val = 0; \
- assert_rpm_wakelock_held(dev_priv); \
+ __assert_rpm_wakelock_held(uncore->rpm); \
spin_lock_irqsave(&uncore->lock, irqflags); \
unclaimed_reg_debug(uncore, reg, true, true)
@@ -1213,7 +1213,7 @@ __gen6_read(64)
#define GEN2_WRITE_HEADER \
struct intel_uncore *uncore = &dev_priv->uncore; \
trace_i915_reg_rw(true, reg, val, sizeof(val), trace); \
- assert_rpm_wakelock_held(dev_priv); \
+ __assert_rpm_wakelock_held(uncore->rpm); \
#define GEN2_WRITE_FOOTER
@@ -1252,7 +1252,7 @@ __gen2_write(32)
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); \
+ __assert_rpm_wakelock_held(uncore->rpm); \
spin_lock_irqsave(&uncore->lock, irqflags); \
unclaimed_reg_debug(uncore, reg, false, true)
@@ -1596,6 +1596,8 @@ int intel_uncore_init(struct intel_uncore *uncore)
uncore->pmic_bus_access_nb.notifier_call =
i915_pmic_bus_access_notifier;
+ uncore->rpm = &i915->runtime_pm;
+
if (!(uncore->flags & UNCORE_HAS_FORCEWAKE)) {
if (IS_GEN(i915, 5)) {
ASSIGN_WRITE_MMIO_VFUNCS(uncore, gen5);
diff --git a/drivers/gpu/drm/i915/intel_uncore.h b/drivers/gpu/drm/i915/intel_uncore.h
index 9a2c4f3b87f2..324f197b37c0 100644
--- a/drivers/gpu/drm/i915/intel_uncore.h
+++ b/drivers/gpu/drm/i915/intel_uncore.h
@@ -32,6 +32,7 @@
#include "i915_reg.h"
struct drm_i915_private;
+struct i915_runtime_pm;
struct intel_uncore;
enum forcewake_domain_id {
@@ -95,6 +96,8 @@ struct intel_forcewake_range {
struct intel_uncore {
void __iomem *regs;
+ struct i915_runtime_pm *rpm;
+
spinlock_t lock; /** lock is also taken in irq contexts. */
const struct intel_forcewake_range *fw_domains_table;
--
2.20.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
