diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_drv.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_drv.c | 122 |
1 files changed, 113 insertions, 9 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index 59f067e857db..9902ac76f683 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -36,8 +36,9 @@ #include <drm/drm_pciids.h> #include <linux/console.h> #include <linux/module.h> - - +#include <linux/pm_runtime.h> +#include <linux/vga_switcheroo.h> +#include "drm_crtc_helper.h" /* * KMS wrapper. * - 2.0.0 - initial interface @@ -87,8 +88,8 @@ void radeon_driver_postclose_kms(struct drm_device *dev, struct drm_file *file_priv); void radeon_driver_preclose_kms(struct drm_device *dev, struct drm_file *file_priv); -int radeon_suspend_kms(struct drm_device *dev, bool suspend); -int radeon_resume_kms(struct drm_device *dev, bool resume); +int radeon_suspend_kms(struct drm_device *dev, bool suspend, bool fbcon); +int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon); u32 radeon_get_vblank_counter_kms(struct drm_device *dev, int crtc); int radeon_enable_vblank_kms(struct drm_device *dev, int crtc); void radeon_disable_vblank_kms(struct drm_device *dev, int crtc); @@ -136,9 +137,11 @@ void radeon_debugfs_cleanup(struct drm_minor *minor); #if defined(CONFIG_VGA_SWITCHEROO) void radeon_register_atpx_handler(void); void radeon_unregister_atpx_handler(void); +bool radeon_is_px(void); #else static inline void radeon_register_atpx_handler(void) {} static inline void radeon_unregister_atpx_handler(void) {} +static inline bool radeon_is_px(void) { return false; } #endif int radeon_no_wb; @@ -161,6 +164,7 @@ int radeon_lockup_timeout = 10000; int radeon_fastfb = 0; int radeon_dpm = -1; int radeon_aspm = -1; +int radeon_runtime_pm = -1; MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers"); module_param_named(no_wb, radeon_no_wb, int, 0444); @@ -222,6 +226,9 @@ module_param_named(dpm, radeon_dpm, int, 0444); MODULE_PARM_DESC(aspm, "ASPM support (1 = enable, 0 = disable, -1 = auto)"); module_param_named(aspm, radeon_aspm, int, 0444); +MODULE_PARM_DESC(runpm, "PX runtime pm (1 = force enable, 0 = disable, -1 = PX only default)"); +module_param_named(runpm, radeon_runtime_pm, int, 0444); + static struct pci_device_id pciidlist[] = { radeon_PCI_IDS }; @@ -258,6 +265,7 @@ static int radeon_resume(struct drm_device *dev) return 0; } + static const struct file_operations radeon_driver_old_fops = { .owner = THIS_MODULE, .open = drm_open, @@ -356,28 +364,121 @@ static int radeon_pmops_suspend(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *drm_dev = pci_get_drvdata(pdev); - return radeon_suspend_kms(drm_dev, 1); + return radeon_suspend_kms(drm_dev, true, true); } static int radeon_pmops_resume(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *drm_dev = pci_get_drvdata(pdev); - return radeon_resume_kms(drm_dev, 1); + return radeon_resume_kms(drm_dev, true, true); } static int radeon_pmops_freeze(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *drm_dev = pci_get_drvdata(pdev); - return radeon_suspend_kms(drm_dev, 0); + return radeon_suspend_kms(drm_dev, false, true); } static int radeon_pmops_thaw(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *drm_dev = pci_get_drvdata(pdev); - return radeon_resume_kms(drm_dev, 0); + return radeon_resume_kms(drm_dev, false, true); +} + +static int radeon_pmops_runtime_suspend(struct device *dev) +{ + struct pci_dev *pdev = to_pci_dev(dev); + struct drm_device *drm_dev = pci_get_drvdata(pdev); + int ret; + + if (radeon_runtime_pm == 0) + return -EINVAL; + + drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; + drm_kms_helper_poll_disable(drm_dev); + vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF); + + ret = radeon_suspend_kms(drm_dev, false, false); + pci_save_state(pdev); + pci_disable_device(pdev); + pci_set_power_state(pdev, PCI_D3cold); + drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF; + + return 0; +} + +static int radeon_pmops_runtime_resume(struct device *dev) +{ + struct pci_dev *pdev = to_pci_dev(dev); + struct drm_device *drm_dev = pci_get_drvdata(pdev); + int ret; + + if (radeon_runtime_pm == 0) + return -EINVAL; + + drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; + + pci_set_power_state(pdev, PCI_D0); + pci_restore_state(pdev); + ret = pci_enable_device(pdev); + if (ret) + return ret; + pci_set_master(pdev); + + ret = radeon_resume_kms(drm_dev, false, false); + drm_kms_helper_poll_enable(drm_dev); + vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON); + drm_dev->switch_power_state = DRM_SWITCH_POWER_ON; + return 0; +} + +static int radeon_pmops_runtime_idle(struct device *dev) +{ + struct pci_dev *pdev = to_pci_dev(dev); + struct drm_device *drm_dev = pci_get_drvdata(pdev); + struct drm_crtc *crtc; + + if (radeon_runtime_pm == 0) + return -EBUSY; + + /* are we PX enabled? */ + if (radeon_runtime_pm == -1 && !radeon_is_px()) { + DRM_DEBUG_DRIVER("failing to power off - not px\n"); + return -EBUSY; + } + + list_for_each_entry(crtc, &drm_dev->mode_config.crtc_list, head) { + if (crtc->enabled) { + DRM_DEBUG_DRIVER("failing to power off - crtc active\n"); + return -EBUSY; + } + } + + pm_runtime_mark_last_busy(dev); + pm_runtime_autosuspend(dev); + /* we don't want the main rpm_idle to call suspend - we want to autosuspend */ + return 1; +} + +long radeon_drm_ioctl(struct file *filp, + unsigned int cmd, unsigned long arg) +{ + struct drm_file *file_priv = filp->private_data; + struct drm_device *dev; + long ret; + dev = file_priv->minor->dev; + ret = pm_runtime_get_sync(dev->dev); + if (ret < 0) + return ret; + + ret = drm_ioctl(filp, cmd, arg); + + pm_runtime_mark_last_busy(dev->dev); + pm_runtime_put_autosuspend(dev->dev); + return ret; } static const struct dev_pm_ops radeon_pm_ops = { @@ -387,13 +488,16 @@ static const struct dev_pm_ops radeon_pm_ops = { .thaw = radeon_pmops_thaw, .poweroff = radeon_pmops_freeze, .restore = radeon_pmops_resume, + .runtime_suspend = radeon_pmops_runtime_suspend, + .runtime_resume = radeon_pmops_runtime_resume, + .runtime_idle = radeon_pmops_runtime_idle, }; static const struct file_operations radeon_driver_kms_fops = { .owner = THIS_MODULE, .open = drm_open, .release = drm_release, - .unlocked_ioctl = drm_ioctl, + .unlocked_ioctl = radeon_drm_ioctl, .mmap = radeon_mmap, .poll = drm_poll, .read = drm_read, |