From patchwork Sat Apr 18 16:53:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Rafael J. Wysocki" X-Patchwork-Id: 11496759 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9C5491894 for ; Sat, 18 Apr 2020 17:14:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8EEB720776 for ; Sat, 18 Apr 2020 17:14:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725887AbgDRRM2 (ORCPT ); Sat, 18 Apr 2020 13:12:28 -0400 Received: from cloudserver094114.home.pl ([79.96.170.134]:58291 "EHLO cloudserver094114.home.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725923AbgDRRL5 (ORCPT ); Sat, 18 Apr 2020 13:11:57 -0400 Received: from 185.80.35.16 (185.80.35.16) (HELO kreacher.localnet) by serwer1319399.home.pl (79.96.170.134) with SMTP (IdeaSmtpServer 0.83.415) id a76c4f0d6061ffcc; Sat, 18 Apr 2020 19:11:52 +0200 From: "Rafael J. Wysocki" To: Linux PM , Alan Stern Cc: Linux ACPI , Linux PCI , LKML , Bjorn Helgaas , Greg Kroah-Hartman , Mika Westerberg , Hans De Goede , Ulf Hansson , DRI-devel , Intel Graphics , intel-wired-lan@lists.osuosl.org Subject: [PATCH v2 7/9] PM: sleep: core: Rename DPM_FLAG_NEVER_SKIP Date: Sat, 18 Apr 2020 18:53:01 +0200 Message-ID: <2011970.oZpq0QmfcQ@kreacher> In-Reply-To: <5673945.BT02kTCndr@kreacher> References: <1888197.j9z7NJ8yPn@kreacher> <5673945.BT02kTCndr@kreacher> MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: "Rafael J. Wysocki" 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 Acked-by: Bjorn Helgaas # for PCI parts Acked-by: Jeff Kirsher Acked-by: Alex Deucher --- -> 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)