From 361f9dc2436812cbcf727fe73d0a4c11ca895fbb Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Tue, 6 Aug 2019 08:42:19 +0100 Subject: [PATCH] drm/i915: Use drm_i915_private directly from drv_get_drvdata() As we store a pointer to i915 in the drvdata field (as the pointer is both an alias to the drm_device and drm_i915_private), we can use the stored pointer directly as the i915 device. v2: Store and use i915 inside drv_get_drvdata() v3: Only expect i915 inside drv_get_drvdata() so drop the assumed i915/drm equivalence. Signed-off-by: Chris Wilson Cc: Andi Shyti Reviewed-by: Andi Shyti Link: https://patchwork.freedesktop.org/patch/msgid/20190806074219.11043-1-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/i915_drv.c | 153 +++++++++--------- drivers/gpu/drm/i915/i915_drv.h | 9 +- drivers/gpu/drm/i915/i915_pci.c | 14 +- .../gpu/drm/i915/selftests/i915_selftest.c | 2 +- 4 files changed, 91 insertions(+), 87 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index b9c6ae09d61f..14ca719dcf30 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -641,39 +641,45 @@ static unsigned int i915_vga_set_decode(void *cookie, bool state) return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM; } -static int i915_resume_switcheroo(struct drm_device *dev); -static int i915_suspend_switcheroo(struct drm_device *dev, pm_message_t state); +static int i915_resume_switcheroo(struct drm_i915_private *i915); +static int i915_suspend_switcheroo(struct drm_i915_private *i915, + pm_message_t state); static void i915_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state) { - struct drm_device *dev = pci_get_drvdata(pdev); + struct drm_i915_private *i915 = pdev_to_i915(pdev); pm_message_t pmm = { .event = PM_EVENT_SUSPEND }; + if (!i915) { + dev_err(&pdev->dev, "DRM not initialized, aborting switch.\n"); + return; + } + if (state == VGA_SWITCHEROO_ON) { pr_info("switched on\n"); - dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; + i915->drm.switch_power_state = DRM_SWITCH_POWER_CHANGING; /* i915 resume handler doesn't set to D0 */ pci_set_power_state(pdev, PCI_D0); - i915_resume_switcheroo(dev); - dev->switch_power_state = DRM_SWITCH_POWER_ON; + i915_resume_switcheroo(i915); + i915->drm.switch_power_state = DRM_SWITCH_POWER_ON; } else { pr_info("switched off\n"); - dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; - i915_suspend_switcheroo(dev, pmm); - dev->switch_power_state = DRM_SWITCH_POWER_OFF; + i915->drm.switch_power_state = DRM_SWITCH_POWER_CHANGING; + i915_suspend_switcheroo(i915, pmm); + i915->drm.switch_power_state = DRM_SWITCH_POWER_OFF; } } static bool i915_switcheroo_can_switch(struct pci_dev *pdev) { - struct drm_device *dev = pci_get_drvdata(pdev); + struct drm_i915_private *i915 = pdev_to_i915(pdev); /* * FIXME: open_count is protected by drm_global_mutex but that would lead to * locking inversion with the driver load path. And the access here is * completely racy anyway. So don't bother with locking for now. */ - return dev->open_count == 0; + return i915 && i915->drm.open_count == 0; } static const struct vga_switcheroo_client_ops i915_switcheroo_ops = { @@ -1840,9 +1846,10 @@ i915_driver_create(struct pci_dev *pdev, const struct pci_device_id *ent) return ERR_PTR(err); } - i915->drm.pdev = pdev; i915->drm.dev_private = i915; - pci_set_drvdata(pdev, &i915->drm); + + i915->drm.pdev = pdev; + pci_set_drvdata(pdev, i915); /* Setup the write-once "constant" device info */ device_info = mkwrite_device_info(i915); @@ -1942,51 +1949,50 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent) return ret; } -void i915_driver_remove(struct drm_device *dev) +void i915_driver_remove(struct drm_i915_private *i915) { - struct drm_i915_private *dev_priv = to_i915(dev); - struct pci_dev *pdev = dev_priv->drm.pdev; + struct pci_dev *pdev = i915->drm.pdev; - disable_rpm_wakeref_asserts(&dev_priv->runtime_pm); + disable_rpm_wakeref_asserts(&i915->runtime_pm); - i915_driver_unregister(dev_priv); + i915_driver_unregister(i915); /* * After unregistering the device to prevent any new users, cancel * all in-flight requests so that we can quickly unbind the active * resources. */ - intel_gt_set_wedged(&dev_priv->gt); + intel_gt_set_wedged(&i915->gt); /* Flush any external code that still may be under the RCU lock */ synchronize_rcu(); - i915_gem_suspend(dev_priv); + i915_gem_suspend(i915); - drm_atomic_helper_shutdown(dev); + drm_atomic_helper_shutdown(&i915->drm); - intel_gvt_driver_remove(dev_priv); + intel_gvt_driver_remove(i915); - intel_modeset_driver_remove(dev); + intel_modeset_driver_remove(&i915->drm); - intel_bios_driver_remove(dev_priv); + intel_bios_driver_remove(i915); vga_switcheroo_unregister_client(pdev); vga_client_register(pdev, NULL, NULL, NULL); - intel_csr_ucode_fini(dev_priv); + intel_csr_ucode_fini(i915); /* Free error state after interrupts are fully disabled. */ - cancel_delayed_work_sync(&dev_priv->gt.hangcheck.work); - i915_reset_error_state(dev_priv); + cancel_delayed_work_sync(&i915->gt.hangcheck.work); + i915_reset_error_state(i915); - i915_gem_driver_remove(dev_priv); + i915_gem_driver_remove(i915); - intel_power_domains_driver_remove(dev_priv); + intel_power_domains_driver_remove(i915); - i915_driver_hw_remove(dev_priv); + i915_driver_hw_remove(i915); - enable_rpm_wakeref_asserts(&dev_priv->runtime_pm); + enable_rpm_wakeref_asserts(&i915->runtime_pm); } static void i915_driver_release(struct drm_device *dev) @@ -2209,28 +2215,23 @@ static int i915_drm_suspend_late(struct drm_device *dev, bool hibernation) return ret; } -static int i915_suspend_switcheroo(struct drm_device *dev, pm_message_t state) +static int +i915_suspend_switcheroo(struct drm_i915_private *i915, pm_message_t state) { int error; - if (!dev) { - DRM_ERROR("dev: %p\n", dev); - DRM_ERROR("DRM not initialized, aborting suspend.\n"); - return -ENODEV; - } - if (WARN_ON_ONCE(state.event != PM_EVENT_SUSPEND && state.event != PM_EVENT_FREEZE)) return -EINVAL; - if (dev->switch_power_state == DRM_SWITCH_POWER_OFF) + if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF) return 0; - error = i915_drm_suspend(dev); + error = i915_drm_suspend(&i915->drm); if (error) return error; - return i915_drm_suspend_late(dev, false); + return i915_drm_suspend_late(&i915->drm, false); } static int i915_drm_resume(struct drm_device *dev) @@ -2383,53 +2384,53 @@ static int i915_drm_resume_early(struct drm_device *dev) return ret; } -static int i915_resume_switcheroo(struct drm_device *dev) +static int i915_resume_switcheroo(struct drm_i915_private *i915) { int ret; - if (dev->switch_power_state == DRM_SWITCH_POWER_OFF) + if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF) return 0; - ret = i915_drm_resume_early(dev); + ret = i915_drm_resume_early(&i915->drm); if (ret) return ret; - return i915_drm_resume(dev); + return i915_drm_resume(&i915->drm); } static int i915_pm_prepare(struct device *kdev) { - struct drm_device *dev = dev_get_drvdata(kdev); + struct drm_i915_private *i915 = kdev_to_i915(kdev); - if (!dev) { + if (!i915) { dev_err(kdev, "DRM not initialized, aborting suspend.\n"); return -ENODEV; } - if (dev->switch_power_state == DRM_SWITCH_POWER_OFF) + if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF) return 0; - return i915_drm_prepare(dev); + return i915_drm_prepare(&i915->drm); } static int i915_pm_suspend(struct device *kdev) { - struct drm_device *dev = dev_get_drvdata(kdev); + struct drm_i915_private *i915 = kdev_to_i915(kdev); - if (!dev) { + if (!i915) { dev_err(kdev, "DRM not initialized, aborting suspend.\n"); return -ENODEV; } - if (dev->switch_power_state == DRM_SWITCH_POWER_OFF) + if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF) return 0; - return i915_drm_suspend(dev); + return i915_drm_suspend(&i915->drm); } static int i915_pm_suspend_late(struct device *kdev) { - struct drm_device *dev = &kdev_to_i915(kdev)->drm; + struct drm_i915_private *i915 = kdev_to_i915(kdev); /* * We have a suspend ordering issue with the snd-hda driver also @@ -2440,55 +2441,55 @@ static int i915_pm_suspend_late(struct device *kdev) * FIXME: This should be solved with a special hdmi sink device or * similar so that power domains can be employed. */ - if (dev->switch_power_state == DRM_SWITCH_POWER_OFF) + if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF) return 0; - return i915_drm_suspend_late(dev, false); + return i915_drm_suspend_late(&i915->drm, false); } static int i915_pm_poweroff_late(struct device *kdev) { - struct drm_device *dev = &kdev_to_i915(kdev)->drm; + struct drm_i915_private *i915 = kdev_to_i915(kdev); - if (dev->switch_power_state == DRM_SWITCH_POWER_OFF) + if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF) return 0; - return i915_drm_suspend_late(dev, true); + return i915_drm_suspend_late(&i915->drm, true); } static int i915_pm_resume_early(struct device *kdev) { - struct drm_device *dev = &kdev_to_i915(kdev)->drm; + struct drm_i915_private *i915 = kdev_to_i915(kdev); - if (dev->switch_power_state == DRM_SWITCH_POWER_OFF) + if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF) return 0; - return i915_drm_resume_early(dev); + return i915_drm_resume_early(&i915->drm); } static int i915_pm_resume(struct device *kdev) { - struct drm_device *dev = &kdev_to_i915(kdev)->drm; + struct drm_i915_private *i915 = kdev_to_i915(kdev); - if (dev->switch_power_state == DRM_SWITCH_POWER_OFF) + if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF) return 0; - return i915_drm_resume(dev); + return i915_drm_resume(&i915->drm); } /* freeze: before creating the hibernation_image */ static int i915_pm_freeze(struct device *kdev) { - struct drm_device *dev = &kdev_to_i915(kdev)->drm; + struct drm_i915_private *i915 = kdev_to_i915(kdev); int ret; - if (dev->switch_power_state != DRM_SWITCH_POWER_OFF) { - ret = i915_drm_suspend(dev); + if (i915->drm.switch_power_state != DRM_SWITCH_POWER_OFF) { + ret = i915_drm_suspend(&i915->drm); if (ret) return ret; } - ret = i915_gem_freeze(kdev_to_i915(kdev)); + ret = i915_gem_freeze(i915); if (ret) return ret; @@ -2497,16 +2498,16 @@ static int i915_pm_freeze(struct device *kdev) static int i915_pm_freeze_late(struct device *kdev) { - struct drm_device *dev = &kdev_to_i915(kdev)->drm; + struct drm_i915_private *i915 = kdev_to_i915(kdev); int ret; - if (dev->switch_power_state != DRM_SWITCH_POWER_OFF) { - ret = i915_drm_suspend_late(dev, true); + if (i915->drm.switch_power_state != DRM_SWITCH_POWER_OFF) { + ret = i915_drm_suspend_late(&i915->drm, true); if (ret) return ret; } - ret = i915_gem_freeze_late(kdev_to_i915(kdev)); + ret = i915_gem_freeze_late(i915); if (ret) return ret; @@ -2908,8 +2909,7 @@ static int vlv_resume_prepare(struct drm_i915_private *dev_priv, static int intel_runtime_suspend(struct device *kdev) { - struct drm_device *dev = dev_get_drvdata(kdev); - struct drm_i915_private *dev_priv = to_i915(dev); + struct drm_i915_private *dev_priv = kdev_to_i915(kdev); struct intel_runtime_pm *rpm = &dev_priv->runtime_pm; int ret; @@ -3005,8 +3005,7 @@ static int intel_runtime_suspend(struct device *kdev) static int intel_runtime_resume(struct device *kdev) { - struct drm_device *dev = dev_get_drvdata(kdev); - struct drm_i915_private *dev_priv = to_i915(dev); + struct drm_i915_private *dev_priv = kdev_to_i915(kdev); struct intel_runtime_pm *rpm = &dev_priv->runtime_pm; int ret = 0; diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 5f3e5c13fbaa..7f0937948935 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1897,7 +1897,12 @@ static inline struct drm_i915_private *to_i915(const struct drm_device *dev) static inline struct drm_i915_private *kdev_to_i915(struct device *kdev) { - return to_i915(dev_get_drvdata(kdev)); + return dev_get_drvdata(kdev); +} + +static inline struct drm_i915_private *pdev_to_i915(struct pci_dev *pdev) +{ + return pci_get_drvdata(pdev); } static inline struct drm_i915_private *wopcm_to_i915(struct intel_wopcm *wopcm) @@ -2376,7 +2381,7 @@ long i915_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); extern const struct dev_pm_ops i915_pm_ops; int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent); -void i915_driver_remove(struct drm_device *dev); +void i915_driver_remove(struct drm_i915_private *i915); void intel_engine_init_hangcheck(struct intel_engine_cs *engine); int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool on); diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c index 20e562ced8cc..1febda2a90e7 100644 --- a/drivers/gpu/drm/i915/i915_pci.c +++ b/drivers/gpu/drm/i915/i915_pci.c @@ -874,16 +874,16 @@ MODULE_DEVICE_TABLE(pci, pciidlist); static void i915_pci_remove(struct pci_dev *pdev) { - struct drm_device *dev; + struct drm_i915_private *i915; - dev = pci_get_drvdata(pdev); - if (!dev) /* driver load aborted, nothing to cleanup */ + i915 = pci_get_drvdata(pdev); + if (!i915) /* driver load aborted, nothing to cleanup */ return; - i915_driver_remove(dev); - drm_dev_put(dev); - + i915_driver_remove(i915); pci_set_drvdata(pdev, NULL); + + drm_dev_put(&i915->drm); } /* is device_id present in comma separated list of ids */ @@ -959,7 +959,7 @@ static int i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (err) return err; - if (i915_inject_probe_failure(to_i915(pci_get_drvdata(pdev)))) { + if (i915_inject_probe_failure(pci_get_drvdata(pdev))) { i915_pci_remove(pdev); return -ENODEV; } diff --git a/drivers/gpu/drm/i915/selftests/i915_selftest.c b/drivers/gpu/drm/i915/selftests/i915_selftest.c index db9c645bbdfe..438ea0eaa416 100644 --- a/drivers/gpu/drm/i915/selftests/i915_selftest.c +++ b/drivers/gpu/drm/i915/selftests/i915_selftest.c @@ -185,7 +185,7 @@ int i915_live_selftests(struct pci_dev *pdev) if (!i915_selftest.live) return 0; - err = run_selftests(live, to_i915(pci_get_drvdata(pdev))); + err = run_selftests(live, pdev_to_i915(pdev)); if (err) { i915_selftest.live = err; return err; -- GitLab