As a first step towards updating the code to work on the runtime_pm
structure instead of i915, rework all the internals to use and pass
around that.
v2: add comment for kdev (Jani), move rpm init after pdev init for
mock_device
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx>
Cc: Imre Deak <imre.deak@xxxxxxxxx>
Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_drv.h | 2 +
drivers/gpu/drm/i915/intel_drv.h | 10 +-
drivers/gpu/drm/i915/intel_runtime_pm.c | 122 ++++++++----------
.../gpu/drm/i915/selftests/mock_gem_device.c | 4 +-
4 files changed, 68 insertions(+), 70 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 90d94d904e65..b7d9aa0bab4b 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1058,6 +1058,8 @@ struct skl_wm_params {
*/
struct i915_runtime_pm {
atomic_t wakeref_count;
+ struct device *kdev; /* points to i915->drm.pdev->dev */
+ bool available;
bool suspended;
bool irqs_enabled;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 3e337317f77e..aec40adf4876 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1656,13 +1656,17 @@ ____assert_rpm_wakelock_held(struct i915_runtime_pm *rpm, int wakeref_count)
}
static inline void
-assert_rpm_raw_wakeref_held(struct drm_i915_private *i915)
+__assert_rpm_raw_wakeref_held(struct i915_runtime_pm *rpm)
{
- struct i915_runtime_pm *rpm = &i915->runtime_pm;
-
____assert_rpm_raw_wakeref_held(rpm, atomic_read(&rpm->wakeref_count));
}
+static inline void
+assert_rpm_raw_wakeref_held(struct drm_i915_private *i915)
+{
+ __assert_rpm_raw_wakeref_held(&i915->runtime_pm);
+}
+
static inline void
__assert_rpm_wakelock_held(struct i915_runtime_pm *rpm)
{
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index af3c1ada1b2e..7c602f5c748d 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -75,21 +75,18 @@ static void __print_depot_stack(depot_stack_handle_t stack,
stack_trace_snprint(buf, sz, entries, nr_entries, indent);
}
-static void init_intel_runtime_pm_wakeref(struct drm_i915_private *i915)
+static void init_intel_runtime_pm_wakeref(struct i915_runtime_pm *rpm)
{
- struct i915_runtime_pm *rpm = &i915->runtime_pm;
-
spin_lock_init(&rpm->debug.lock);
}
static noinline depot_stack_handle_t
-track_intel_runtime_pm_wakeref(struct drm_i915_private *i915)
+track_intel_runtime_pm_wakeref(struct i915_runtime_pm *rpm)
{
- struct i915_runtime_pm *rpm = &i915->runtime_pm;
depot_stack_handle_t stack, *stacks;
unsigned long flags;
- if (!HAS_RUNTIME_PM(i915))
+ if (!rpm->available)
return -1;
stack = __save_depot_stack();
@@ -116,10 +113,9 @@ track_intel_runtime_pm_wakeref(struct drm_i915_private *i915)
return stack;
}
-static void untrack_intel_runtime_pm_wakeref(struct drm_i915_private *i915,
+static void untrack_intel_runtime_pm_wakeref(struct i915_runtime_pm *rpm,
depot_stack_handle_t stack)
{
- struct i915_runtime_pm *rpm = &i915->runtime_pm;
unsigned long flags, n;
bool found = false;
@@ -237,9 +233,8 @@ dump_and_free_wakeref_tracking(struct intel_runtime_pm_debug *debug)
}
static noinline void
-__intel_wakeref_dec_and_check_tracking(struct drm_i915_private *i915)
+__intel_wakeref_dec_and_check_tracking(struct i915_runtime_pm *rpm)
{
- struct i915_runtime_pm *rpm = &i915->runtime_pm;
struct intel_runtime_pm_debug dbg = {};
unsigned long flags;
@@ -255,9 +250,8 @@ __intel_wakeref_dec_and_check_tracking(struct drm_i915_private *i915)
}
static noinline void
-untrack_all_intel_runtime_pm_wakerefs(struct drm_i915_private *i915)
+untrack_all_intel_runtime_pm_wakerefs(struct i915_runtime_pm *rpm)
{
- struct i915_runtime_pm *rpm = &i915->runtime_pm;
struct intel_runtime_pm_debug dbg = {};
unsigned long flags;
@@ -308,76 +302,70 @@ void print_intel_runtime_pm_wakeref(struct drm_i915_private *i915,
#else
-static void init_intel_runtime_pm_wakeref(struct drm_i915_private *i915)
+static void init_intel_runtime_pm_wakeref(struct i915_runtime_pm *rpm)
{
}
static depot_stack_handle_t
-track_intel_runtime_pm_wakeref(struct drm_i915_private *i915)
+track_intel_runtime_pm_wakeref(struct i915_runtime_pm *rpm)
{
return -1;
}
-static void untrack_intel_runtime_pm_wakeref(struct drm_i915_private *i915,
+static void untrack_intel_runtime_pm_wakeref(struct i915_runtime_pm *rpm,
intel_wakeref_t wref)
{
}
static void
-__intel_wakeref_dec_and_check_tracking(struct drm_i915_private *i915)
+__intel_wakeref_dec_and_check_tracking(struct i915_runtime_pm *rpm)
{
- atomic_dec(&i915->runtime_pm.wakeref_count);
+ atomic_dec(&rpm->wakeref_count);
}
static void
-untrack_all_intel_runtime_pm_wakerefs(struct drm_i915_private *i915)
+untrack_all_intel_runtime_pm_wakerefs(struct i915_runtime_pm *rpm)
{
}
#endif
static void
-intel_runtime_pm_acquire(struct drm_i915_private *i915, bool wakelock)
+intel_runtime_pm_acquire(struct i915_runtime_pm *rpm, bool wakelock)
{
- struct i915_runtime_pm *rpm = &i915->runtime_pm;
-
if (wakelock) {
atomic_add(1 + INTEL_RPM_WAKELOCK_BIAS, &rpm->wakeref_count);
- assert_rpm_wakelock_held(i915);
+ __assert_rpm_wakelock_held(rpm);
} else {
atomic_inc(&rpm->wakeref_count);
- assert_rpm_raw_wakeref_held(i915);
+ __assert_rpm_raw_wakeref_held(rpm);
}
}
static void
-intel_runtime_pm_release(struct drm_i915_private *i915, int wakelock)
+intel_runtime_pm_release(struct i915_runtime_pm *rpm, int wakelock)
{
- struct i915_runtime_pm *rpm = &i915->runtime_pm;
-
if (wakelock) {
- assert_rpm_wakelock_held(i915);
+ __assert_rpm_wakelock_held(rpm);
atomic_sub(INTEL_RPM_WAKELOCK_BIAS, &rpm->wakeref_count);
} else {
- assert_rpm_raw_wakeref_held(i915);
+ __assert_rpm_raw_wakeref_held(rpm);
}
- __intel_wakeref_dec_and_check_tracking(i915);
+ __intel_wakeref_dec_and_check_tracking(rpm);
}
-static intel_wakeref_t __intel_runtime_pm_get(struct drm_i915_private *i915,
+static intel_wakeref_t __intel_runtime_pm_get(struct i915_runtime_pm *rpm,
bool wakelock)
{
- struct pci_dev *pdev = i915->drm.pdev;
- struct device *kdev = &pdev->dev;
int ret;
- ret = pm_runtime_get_sync(kdev);
+ ret = pm_runtime_get_sync(rpm->kdev);
WARN_ONCE(ret < 0, "pm_runtime_get_sync() failed: %d\n", ret);
- intel_runtime_pm_acquire(i915, wakelock);
+ intel_runtime_pm_acquire(rpm, wakelock);
- return track_intel_runtime_pm_wakeref(i915);
+ return track_intel_runtime_pm_wakeref(rpm);
}
/**
@@ -400,7 +388,7 @@ static intel_wakeref_t __intel_runtime_pm_get(struct drm_i915_private *i915,
intel_wakeref_t intel_runtime_pm_get_raw(struct drm_i915_private *i915)
{
- return __intel_runtime_pm_get(i915, false);
+ return __intel_runtime_pm_get(&i915->runtime_pm, false);
}
/**
@@ -417,7 +405,7 @@ intel_wakeref_t intel_runtime_pm_get_raw(struct drm_i915_private *i915)
*/
intel_wakeref_t intel_runtime_pm_get(struct drm_i915_private *i915)
{
- return __intel_runtime_pm_get(i915, true);
+ return __intel_runtime_pm_get(&i915->runtime_pm, true);
}
/**
@@ -436,23 +424,22 @@ intel_wakeref_t intel_runtime_pm_get(struct drm_i915_private *i915)
*/
intel_wakeref_t intel_runtime_pm_get_if_in_use(struct drm_i915_private *i915)
{
- if (IS_ENABLED(CONFIG_PM)) {
- struct pci_dev *pdev = i915->drm.pdev;
- struct device *kdev = &pdev->dev;
+ struct i915_runtime_pm *rpm = &i915->runtime_pm;
+ if (IS_ENABLED(CONFIG_PM)) {
/*
* In cases runtime PM is disabled by the RPM core and we get
* an -EINVAL return value we are not supposed to call this
* function, since the power state is undefined. This applies
* atm to the late/early system suspend/resume handlers.
*/
- if (pm_runtime_get_if_in_use(kdev) <= 0)
+ if (pm_runtime_get_if_in_use(rpm->kdev) <= 0)
return 0;
}
- intel_runtime_pm_acquire(i915, true);
+ intel_runtime_pm_acquire(rpm, true);
- return track_intel_runtime_pm_wakeref(i915);
+ return track_intel_runtime_pm_wakeref(rpm);
}
/**
@@ -476,27 +463,25 @@ intel_wakeref_t intel_runtime_pm_get_if_in_use(struct drm_i915_private *i915)
*/
intel_wakeref_t intel_runtime_pm_get_noresume(struct drm_i915_private *i915)
{
- struct pci_dev *pdev = i915->drm.pdev;
- struct device *kdev = &pdev->dev;
+ struct i915_runtime_pm *rpm = &i915->runtime_pm;
- assert_rpm_wakelock_held(i915);
- pm_runtime_get_noresume(kdev);
+ __assert_rpm_wakelock_held(rpm);
+ pm_runtime_get_noresume(rpm->kdev);
- intel_runtime_pm_acquire(i915, true);
+ intel_runtime_pm_acquire(rpm, true);
- return track_intel_runtime_pm_wakeref(i915);
+ return track_intel_runtime_pm_wakeref(rpm);
}
-static void __intel_runtime_pm_put(struct drm_i915_private *i915,
+static void __intel_runtime_pm_put(struct i915_runtime_pm *rpm,
intel_wakeref_t wref,
bool wakelock)
{
- struct pci_dev *pdev = i915->drm.pdev;
- struct device *kdev = &pdev->dev;
+ struct device *kdev = rpm->kdev;
- untrack_intel_runtime_pm_wakeref(i915, wref);
+ untrack_intel_runtime_pm_wakeref(rpm, wref);
- intel_runtime_pm_release(i915, wakelock);
+ intel_runtime_pm_release(rpm, wakelock);
pm_runtime_mark_last_busy(kdev);
pm_runtime_put_autosuspend(kdev);
@@ -514,7 +499,7 @@ static void __intel_runtime_pm_put(struct drm_i915_private *i915,
void
intel_runtime_pm_put_raw(struct drm_i915_private *i915, intel_wakeref_t wref)
{
- __intel_runtime_pm_put(i915, wref, false);
+ __intel_runtime_pm_put(&i915->runtime_pm, wref, false);
}
/**
@@ -531,7 +516,7 @@ intel_runtime_pm_put_raw(struct drm_i915_private *i915, intel_wakeref_t wref)
*/
void intel_runtime_pm_put_unchecked(struct drm_i915_private *i915)
{
- __intel_runtime_pm_put(i915, -1, true);
+ __intel_runtime_pm_put(&i915->runtime_pm, -1, true);
}
#if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)
@@ -546,7 +531,7 @@ void intel_runtime_pm_put_unchecked(struct drm_i915_private *i915)
*/
void intel_runtime_pm_put(struct drm_i915_private *i915, intel_wakeref_t wref)
{
- __intel_runtime_pm_put(i915, wref, true);
+ __intel_runtime_pm_put(&i915->runtime_pm, wref, true);
}
#endif
@@ -562,8 +547,8 @@ void intel_runtime_pm_put(struct drm_i915_private *i915, intel_wakeref_t wref)
*/
void intel_runtime_pm_enable(struct drm_i915_private *i915)
{
- struct pci_dev *pdev = i915->drm.pdev;
- struct device *kdev = &pdev->dev;
+ struct i915_runtime_pm *rpm = &i915->runtime_pm;
+ struct device *kdev = rpm->kdev;
/*
* Disable the system suspend direct complete optimization, which can
@@ -584,7 +569,7 @@ void intel_runtime_pm_enable(struct drm_i915_private *i915)
* so the driver's own RPM reference tracking asserts also work on
* platforms without RPM support.
*/
- if (!HAS_RUNTIME_PM(i915)) {
+ if (!rpm->available) {
int ret;
pm_runtime_dont_use_autosuspend(kdev);
@@ -604,8 +589,8 @@ void intel_runtime_pm_enable(struct drm_i915_private *i915)
void intel_runtime_pm_disable(struct drm_i915_private *i915)
{
- struct pci_dev *pdev = i915->drm.pdev;
- struct device *kdev = &pdev->dev;
+ struct i915_runtime_pm *rpm = &i915->runtime_pm;
+ struct device *kdev = rpm->kdev;
/* Transfer rpm ownership back to core */
WARN(pm_runtime_get_sync(kdev) < 0,
@@ -613,7 +598,7 @@ void intel_runtime_pm_disable(struct drm_i915_private *i915)
pm_runtime_dont_use_autosuspend(kdev);
- if (!HAS_RUNTIME_PM(i915))
+ if (!rpm->available)
pm_runtime_put(kdev);
}
@@ -627,10 +612,17 @@ void intel_runtime_pm_cleanup(struct drm_i915_private *i915)
intel_rpm_raw_wakeref_count(count),
intel_rpm_wakelock_count(count));
- untrack_all_intel_runtime_pm_wakerefs(i915);
+ untrack_all_intel_runtime_pm_wakerefs(rpm);
}
void intel_runtime_pm_init_early(struct drm_i915_private *i915)
{
- init_intel_runtime_pm_wakeref(i915);
+ struct i915_runtime_pm *rpm = &i915->runtime_pm;
+ struct pci_dev *pdev = i915->drm.pdev;
+ struct device *kdev = &pdev->dev;
+
+ rpm->kdev = kdev;
+ rpm->available = HAS_RUNTIME_PM(i915);
+
+ init_intel_runtime_pm_wakeref(rpm);
}
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 1e9ffced78c1..0ad456dba09f 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -153,8 +153,6 @@ struct drm_i915_private *mock_gem_device(void)
i915 = (struct drm_i915_private *)(pdev + 1);
pci_set_drvdata(pdev, i915);
- intel_runtime_pm_init_early(i915);
-
dev_pm_domain_set(&pdev->dev, &pm_domain);
pm_runtime_enable(&pdev->dev);
pm_runtime_dont_use_autosuspend(&pdev->dev);
@@ -169,6 +167,8 @@ struct drm_i915_private *mock_gem_device(void)
i915->drm.pdev = pdev;
i915->drm.dev_private = i915;
+ intel_runtime_pm_init_early(i915);
+
/* Using the global GTT may ask questions about KMS users, so prepare */
drm_mode_config_init(&i915->drm);
--
2.20.1
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