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Message-ID: <2011970.oZpq0QmfcQ@kreacher>
Date: Sat, 18 Apr 2020 18:53:01 +0200
From: "Rafael J. Wysocki" <rjw@...ysocki.net>
To: Linux PM <linux-pm@...r.kernel.org>,
Alan Stern <stern@...land.harvard.edu>
Cc: Linux ACPI <linux-acpi@...r.kernel.org>,
Linux PCI <linux-pci@...r.kernel.org>,
LKML <linux-kernel@...r.kernel.org>,
Bjorn Helgaas <helgaas@...nel.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Mika Westerberg <mika.westerberg@...ux.intel.com>,
Hans De Goede <hdegoede@...hat.com>,
Ulf Hansson <ulf.hansson@...aro.org>,
DRI-devel <dri-devel@...ts.freedesktop.org>,
Intel Graphics <intel-gfx@...ts.freedesktop.org>,
intel-wired-lan@...ts.osuosl.org
Subject: [PATCH v2 7/9] PM: sleep: core: Rename DPM_FLAG_NEVER_SKIP
From: "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Rename DPM_FLAG_NEVER_SKIP to DPM_FLAG_NO_DIRECT_COMPLETE which
matches its purpose more closely.
No functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Acked-by: Bjorn Helgaas <bhelgaas@...gle.com> # for PCI parts
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
-> v2:
* Rebased.
* Added tags received so far.
---
Documentation/driver-api/pm/devices.rst | 6 +++---
Documentation/power/pci.rst | 10 +++++-----
drivers/base/power/main.c | 2 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 2 +-
drivers/gpu/drm/i915/intel_runtime_pm.c | 2 +-
drivers/gpu/drm/radeon/radeon_kms.c | 2 +-
drivers/misc/mei/pci-me.c | 2 +-
drivers/misc/mei/pci-txe.c | 2 +-
drivers/net/ethernet/intel/e1000e/netdev.c | 2 +-
drivers/net/ethernet/intel/igb/igb_main.c | 2 +-
drivers/net/ethernet/intel/igc/igc_main.c | 2 +-
drivers/pci/pcie/portdrv_pci.c | 2 +-
include/linux/pm.h | 6 +++---
13 files changed, 21 insertions(+), 21 deletions(-)
diff --git a/Documentation/driver-api/pm/devices.rst b/Documentation/driver-api/pm/devices.rst
index f66c7b9126ea..4ace0eba4506 100644
--- a/Documentation/driver-api/pm/devices.rst
+++ b/Documentation/driver-api/pm/devices.rst
@@ -361,9 +361,9 @@ the phases are: ``prepare``, ``suspend``, ``suspend_late``, ``suspend_noirq``.
runtime PM disabled.
This feature also can be controlled by device drivers by using the
- ``DPM_FLAG_NEVER_SKIP`` and ``DPM_FLAG_SMART_PREPARE`` driver power
- management flags. [Typically, they are set at the time the driver is
- probed against the device in question by passing them to the
+ ``DPM_FLAG_NO_DIRECT_COMPLETE`` and ``DPM_FLAG_SMART_PREPARE`` driver
+ power management flags. [Typically, they are set at the time the driver
+ is probed against the device in question by passing them to the
:c:func:`dev_pm_set_driver_flags` helper function.] If the first of
these flags is set, the PM core will not apply the direct-complete
procedure described above to the given device and, consequenty, to any
diff --git a/Documentation/power/pci.rst b/Documentation/power/pci.rst
index aa1c7fce6cd0..9e1408121bea 100644
--- a/Documentation/power/pci.rst
+++ b/Documentation/power/pci.rst
@@ -1004,11 +1004,11 @@ including the PCI bus type. The flags should be set once at the driver probe
time with the help of the dev_pm_set_driver_flags() function and they should not
be updated directly afterwards.
-The DPM_FLAG_NEVER_SKIP flag prevents the PM core from using the direct-complete
-mechanism allowing device suspend/resume callbacks to be skipped if the device
-is in runtime suspend when the system suspend starts. That also affects all of
-the ancestors of the device, so this flag should only be used if absolutely
-necessary.
+The DPM_FLAG_NO_DIRECT_COMPLETE flag prevents the PM core from using the
+direct-complete mechanism allowing device suspend/resume callbacks to be skipped
+if the device is in runtime suspend when the system suspend starts. That also
+affects all of the ancestors of the device, so this flag should only be used if
+absolutely necessary.
The DPM_FLAG_SMART_PREPARE flag instructs the PCI bus type to only return a
positive value from pci_pm_prepare() if the ->prepare callback provided by the
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 3170d93e29f9..dbc1e5e7346b 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -1844,7 +1844,7 @@ static int device_prepare(struct device *dev, pm_message_t state)
spin_lock_irq(&dev->power.lock);
dev->power.direct_complete = state.event == PM_EVENT_SUSPEND &&
(ret > 0 || dev->power.no_pm_callbacks) &&
- !dev_pm_test_driver_flags(dev, DPM_FLAG_NEVER_SKIP);
+ !dev_pm_test_driver_flags(dev, DPM_FLAG_NO_DIRECT_COMPLETE);
spin_unlock_irq(&dev->power.lock);
return 0;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index fd1dc3236eca..a9086ea1ab60 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -191,7 +191,7 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
}
if (adev->runpm) {
- dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NEVER_SKIP);
+ dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
pm_runtime_use_autosuspend(dev->dev);
pm_runtime_set_autosuspend_delay(dev->dev, 5000);
pm_runtime_set_active(dev->dev);
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index ad719c9602af..9cb2d7548daa 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -549,7 +549,7 @@ void intel_runtime_pm_enable(struct intel_runtime_pm *rpm)
* becaue the HDA driver may require us to enable the audio power
* domain during system suspend.
*/
- dev_pm_set_driver_flags(kdev, DPM_FLAG_NEVER_SKIP);
+ dev_pm_set_driver_flags(kdev, DPM_FLAG_NO_DIRECT_COMPLETE);
pm_runtime_set_autosuspend_delay(kdev, 10000); /* 10s */
pm_runtime_mark_last_busy(kdev);
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 58176db85952..372962358a18 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -158,7 +158,7 @@ int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
}
if (radeon_is_px(dev)) {
- dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NEVER_SKIP);
+ dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
pm_runtime_use_autosuspend(dev->dev);
pm_runtime_set_autosuspend_delay(dev->dev, 5000);
pm_runtime_set_active(dev->dev);
diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index 3d21c38e2dbb..53f16f3bd091 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -240,7 +240,7 @@ static int mei_me_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
* MEI requires to resume from runtime suspend mode
* in order to perform link reset flow upon system suspend.
*/
- dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
+ dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
/*
* ME maps runtime suspend/resume to D0i states,
diff --git a/drivers/misc/mei/pci-txe.c b/drivers/misc/mei/pci-txe.c
index beacf2a2f2b5..4bf26ce61044 100644
--- a/drivers/misc/mei/pci-txe.c
+++ b/drivers/misc/mei/pci-txe.c
@@ -128,7 +128,7 @@ static int mei_txe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
* MEI requires to resume from runtime suspend mode
* in order to perform link reset flow upon system suspend.
*/
- dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
+ dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
/*
* TXE maps runtime suspend/resume to own power gating states,
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 177c6da80c57..2730b1c7dddb 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -7549,7 +7549,7 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
e1000_print_device_info(adapter);
- dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
+ dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
if (pci_dev_run_wake(pdev) && hw->mac.type < e1000_pch_cnp)
pm_runtime_put_noidle(&pdev->dev);
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index b46bff8fe056..8bb3db2cbd41 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -3445,7 +3445,7 @@ static int igb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
}
}
- dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
+ dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
pm_runtime_put_noidle(&pdev->dev);
return 0;
diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index 69fa1ce1f927..59fc0097438f 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -4825,7 +4825,7 @@ static int igc_probe(struct pci_dev *pdev,
pcie_print_link_status(pdev);
netdev_info(netdev, "MAC: %pM\n", netdev->dev_addr);
- dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
+ dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
pm_runtime_put_noidle(&pdev->dev);
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index 160d67c59310..3acf151ae015 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -115,7 +115,7 @@ static int pcie_portdrv_probe(struct pci_dev *dev,
pci_save_state(dev);
- dev_pm_set_driver_flags(&dev->dev, DPM_FLAG_NEVER_SKIP |
+ dev_pm_set_driver_flags(&dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE |
DPM_FLAG_SMART_SUSPEND);
if (pci_bridge_d3_possible(dev)) {
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 8c59a7f0bcf4..cdb8fbd6ab18 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -544,7 +544,7 @@ struct pm_subsys_data {
* These flags can be set by device drivers at the probe time. They need not be
* cleared by the drivers as the driver core will take care of that.
*
- * NEVER_SKIP: Do not skip all system suspend/resume callbacks for the device.
+ * NO_DIRECT_COMPLETE: Do not apply direct-complete optimization to the device.
* SMART_PREPARE: Check the return value of the driver's ->prepare callback.
* SMART_SUSPEND: No need to resume the device from runtime suspend.
* LEAVE_SUSPENDED: Avoid resuming the device during system resume if possible.
@@ -554,7 +554,7 @@ struct pm_subsys_data {
* their ->prepare callbacks if the driver's ->prepare callback returns 0 (in
* other words, the system suspend/resume callbacks can only be skipped for the
* device if its driver doesn't object against that). This flag has no effect
- * if NEVER_SKIP is set.
+ * if NO_DIRECT_COMPLETE is set.
*
* Setting SMART_SUSPEND instructs bus types and PM domains which may want to
* runtime resume the device upfront during system suspend that doing so is not
@@ -565,7 +565,7 @@ struct pm_subsys_data {
* Setting LEAVE_SUSPENDED informs the PM core and middle-layer code that the
* driver prefers the device to be left in suspend after system resume.
*/
-#define DPM_FLAG_NEVER_SKIP BIT(0)
+#define DPM_FLAG_NO_DIRECT_COMPLETE BIT(0)
#define DPM_FLAG_SMART_PREPARE BIT(1)
#define DPM_FLAG_SMART_SUSPEND BIT(2)
#define DPM_FLAG_LEAVE_SUSPENDED BIT(3)
--
2.16.4
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