diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_irq_kms.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_irq_kms.c | 98 |
1 files changed, 69 insertions, 29 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c index 7aacb44df201..9961251b44ba 100644 --- a/drivers/gpu/drm/radeon/radeon_irq_kms.c +++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c @@ -25,27 +25,32 @@ * Alex Deucher * Jerome Glisse */ -#include <drm/drmP.h> -#include <drm/drm_crtc_helper.h> + +#include <linux/pci.h> +#include <linux/pm_runtime.h> + +#include <drm/drm_device.h> +#include <drm/drm_drv.h> +#include <drm/drm_probe_helper.h> +#include <drm/drm_vblank.h> #include <drm/radeon_drm.h> -#include "radeon_reg.h" -#include "radeon.h" + #include "atom.h" +#include "radeon.h" +#include "radeon_kms.h" +#include "radeon_reg.h" -#include <linux/pm_runtime.h> #define RADEON_WAIT_IDLE_TIMEOUT 200 -/** +/* * radeon_driver_irq_handler_kms - irq handler for KMS * - * @int irq, void *arg: args - * * This is the irq handler for the radeon KMS driver (all asics). * radeon_irq_process is a macro that points to the per-asic * irq handler callback. */ -irqreturn_t radeon_driver_irq_handler_kms(int irq, void *arg) +static irqreturn_t radeon_driver_irq_handler_kms(int irq, void *arg) { struct drm_device *dev = (struct drm_device *) arg; struct radeon_device *rdev = dev->dev_private; @@ -75,7 +80,7 @@ static void radeon_hotplug_work_func(struct work_struct *work) { struct radeon_device *rdev = container_of(work, struct radeon_device, hotplug_work.work); - struct drm_device *dev = rdev->ddev; + struct drm_device *dev = rdev_to_drm(rdev); struct drm_mode_config *mode_config = &dev->mode_config; struct drm_connector *connector; @@ -96,14 +101,16 @@ static void radeon_dp_work_func(struct work_struct *work) { struct radeon_device *rdev = container_of(work, struct radeon_device, dp_work); - struct drm_device *dev = rdev->ddev; + struct drm_device *dev = rdev_to_drm(rdev); struct drm_mode_config *mode_config = &dev->mode_config; struct drm_connector *connector; - /* this should take a mutex */ + mutex_lock(&mode_config->mutex); list_for_each_entry(connector, &mode_config->connector_list, head) radeon_connector_hotplug(connector); + mutex_unlock(&mode_config->mutex); } + /** * radeon_driver_irq_preinstall_kms - drm irq preinstall callback * @@ -112,7 +119,7 @@ static void radeon_dp_work_func(struct work_struct *work) * Gets the hw ready to enable irqs (all asics). * This function disables all interrupt sources on the GPU. */ -void radeon_driver_irq_preinstall_kms(struct drm_device *dev) +static void radeon_driver_irq_preinstall_kms(struct drm_device *dev) { struct radeon_device *rdev = dev->dev_private; unsigned long irqflags; @@ -144,7 +151,7 @@ void radeon_driver_irq_preinstall_kms(struct drm_device *dev) * Handles stuff to be done after enabling irqs (all asics). * Returns 0 on success. */ -int radeon_driver_irq_postinstall_kms(struct drm_device *dev) +static int radeon_driver_irq_postinstall_kms(struct drm_device *dev) { struct radeon_device *rdev = dev->dev_private; @@ -163,7 +170,7 @@ int radeon_driver_irq_postinstall_kms(struct drm_device *dev) * * This function disables all interrupt sources on the GPU (all asics). */ -void radeon_driver_irq_uninstall_kms(struct drm_device *dev) +static void radeon_driver_irq_uninstall_kms(struct drm_device *dev) { struct radeon_device *rdev = dev->dev_private; unsigned long irqflags; @@ -188,6 +195,36 @@ void radeon_driver_irq_uninstall_kms(struct drm_device *dev) spin_unlock_irqrestore(&rdev->irq.lock, irqflags); } +static int radeon_irq_install(struct radeon_device *rdev, int irq) +{ + struct drm_device *dev = rdev_to_drm(rdev); + int ret; + + if (irq == IRQ_NOTCONNECTED) + return -ENOTCONN; + + radeon_driver_irq_preinstall_kms(dev); + + /* PCI devices require shared interrupts. */ + ret = request_irq(irq, radeon_driver_irq_handler_kms, + IRQF_SHARED, dev->driver->name, dev); + if (ret) + return ret; + + radeon_driver_irq_postinstall_kms(dev); + + return 0; +} + +static void radeon_irq_uninstall(struct radeon_device *rdev) +{ + struct drm_device *dev = rdev_to_drm(rdev); + struct pci_dev *pdev = to_pci_dev(dev->dev); + + radeon_driver_irq_uninstall_kms(dev); + free_irq(pdev->irq, dev); +} + /** * radeon_msi_ok - asic specific msi checks * @@ -283,7 +320,11 @@ int radeon_irq_kms_init(struct radeon_device *rdev) int r = 0; spin_lock_init(&rdev->irq.lock); - r = drm_vblank_init(rdev->ddev, rdev->num_crtc); + + /* Disable vblank irqs aggressively for power-saving */ + rdev_to_drm(rdev)->vblank_disable_immediate = true; + + r = drm_vblank_init(rdev_to_drm(rdev), rdev->num_crtc); if (r) { return r; } @@ -304,7 +345,7 @@ int radeon_irq_kms_init(struct radeon_device *rdev) INIT_WORK(&rdev->audio_work, r600_audio_update_hdmi); rdev->irq.installed = true; - r = drm_irq_install(rdev->ddev, rdev->ddev->pdev->irq); + r = radeon_irq_install(rdev, rdev->pdev->irq); if (r) { rdev->irq.installed = false; flush_delayed_work(&rdev->hotplug_work); @@ -324,9 +365,8 @@ int radeon_irq_kms_init(struct radeon_device *rdev) */ void radeon_irq_kms_fini(struct radeon_device *rdev) { - drm_vblank_cleanup(rdev->ddev); if (rdev->irq.installed) { - drm_irq_uninstall(rdev->ddev); + radeon_irq_uninstall(rdev); rdev->irq.installed = false; if (rdev->msi_enabled) pci_disable_msi(rdev->pdev); @@ -348,7 +388,7 @@ void radeon_irq_kms_sw_irq_get(struct radeon_device *rdev, int ring) { unsigned long irqflags; - if (!rdev->ddev->irq_enabled) + if (!rdev->irq.installed) return; if (atomic_inc_return(&rdev->irq.ring_int[ring]) == 1) { @@ -387,7 +427,7 @@ void radeon_irq_kms_sw_irq_put(struct radeon_device *rdev, int ring) { unsigned long irqflags; - if (!rdev->ddev->irq_enabled) + if (!rdev->irq.installed) return; if (atomic_dec_and_test(&rdev->irq.ring_int[ring])) { @@ -413,7 +453,7 @@ void radeon_irq_kms_pflip_irq_get(struct radeon_device *rdev, int crtc) if (crtc < 0 || crtc >= rdev->num_crtc) return; - if (!rdev->ddev->irq_enabled) + if (!rdev->irq.installed) return; if (atomic_inc_return(&rdev->irq.pflip[crtc]) == 1) { @@ -439,7 +479,7 @@ void radeon_irq_kms_pflip_irq_put(struct radeon_device *rdev, int crtc) if (crtc < 0 || crtc >= rdev->num_crtc) return; - if (!rdev->ddev->irq_enabled) + if (!rdev->irq.installed) return; if (atomic_dec_and_test(&rdev->irq.pflip[crtc])) { @@ -461,7 +501,7 @@ void radeon_irq_kms_enable_afmt(struct radeon_device *rdev, int block) { unsigned long irqflags; - if (!rdev->ddev->irq_enabled) + if (!rdev->irq.installed) return; spin_lock_irqsave(&rdev->irq.lock, irqflags); @@ -483,7 +523,7 @@ void radeon_irq_kms_disable_afmt(struct radeon_device *rdev, int block) { unsigned long irqflags; - if (!rdev->ddev->irq_enabled) + if (!rdev->irq.installed) return; spin_lock_irqsave(&rdev->irq.lock, irqflags); @@ -505,7 +545,7 @@ void radeon_irq_kms_enable_hpd(struct radeon_device *rdev, unsigned hpd_mask) unsigned long irqflags; int i; - if (!rdev->ddev->irq_enabled) + if (!rdev->irq.installed) return; spin_lock_irqsave(&rdev->irq.lock, irqflags); @@ -528,7 +568,7 @@ void radeon_irq_kms_disable_hpd(struct radeon_device *rdev, unsigned hpd_mask) unsigned long irqflags; int i; - if (!rdev->ddev->irq_enabled) + if (!rdev->irq.installed) return; spin_lock_irqsave(&rdev->irq.lock, irqflags); @@ -539,14 +579,14 @@ void radeon_irq_kms_disable_hpd(struct radeon_device *rdev, unsigned hpd_mask) } /** - * radeon_irq_kms_update_int_n - helper for updating interrupt enable registers + * radeon_irq_kms_set_irq_n_enabled - helper for updating interrupt enable registers * * @rdev: radeon device pointer * @reg: the register to write to enable/disable interrupts * @mask: the mask that enables the interrupts * @enable: whether to enable or disable the interrupt register * @name: the name of the interrupt register to print to the kernel log - * @num: the number of the interrupt register to print to the kernel log + * @n: the number of the interrupt register to print to the kernel log * * Helper for updating the enable state of interrupt registers. Checks whether * or not the interrupt matches the enable state we want. If it doesn't, then |