diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_irq.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_irq.c | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_irq.c b/drivers/gpu/drm/nouveau/nouveau_irq.c deleted file mode 100644 index 868c7fd7485..00000000000 --- a/drivers/gpu/drm/nouveau/nouveau_irq.c +++ /dev/null @@ -1,151 +0,0 @@ -/* - * Copyright (C) 2006 Ben Skeggs. - * - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining - * a copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sublicense, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial - * portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. - * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE - * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION - * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION - * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - */ - -/* - * Authors: - * Ben Skeggs <darktama@iinet.net.au> - */ - -#include "drmP.h" -#include "drm.h" -#include "nouveau_drm.h" -#include "nouveau_drv.h" -#include "nouveau_reg.h" -#include "nouveau_ramht.h" -#include "nouveau_util.h" - -void -nouveau_irq_preinstall(struct drm_device *dev) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - - /* Master disable */ - nv_wr32(dev, NV03_PMC_INTR_EN_0, 0); - - INIT_LIST_HEAD(&dev_priv->vbl_waiting); -} - -int -nouveau_irq_postinstall(struct drm_device *dev) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - - /* Master enable */ - nv_wr32(dev, NV03_PMC_INTR_EN_0, NV_PMC_INTR_EN_0_MASTER_ENABLE); - if (dev_priv->msi_enabled) - nv_wr08(dev, 0x00088068, 0xff); - - return 0; -} - -void -nouveau_irq_uninstall(struct drm_device *dev) -{ - /* Master disable */ - nv_wr32(dev, NV03_PMC_INTR_EN_0, 0); -} - -irqreturn_t -nouveau_irq_handler(DRM_IRQ_ARGS) -{ - struct drm_device *dev = (struct drm_device *)arg; - struct drm_nouveau_private *dev_priv = dev->dev_private; - unsigned long flags; - u32 stat; - int i; - - stat = nv_rd32(dev, NV03_PMC_INTR_0); - if (stat == 0 || stat == ~0) - return IRQ_NONE; - - spin_lock_irqsave(&dev_priv->context_switch_lock, flags); - for (i = 0; i < 32 && stat; i++) { - if (!(stat & (1 << i)) || !dev_priv->irq_handler[i]) - continue; - - dev_priv->irq_handler[i](dev); - stat &= ~(1 << i); - } - - if (dev_priv->msi_enabled) - nv_wr08(dev, 0x00088068, 0xff); - spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags); - - if (stat && nouveau_ratelimit()) - NV_ERROR(dev, "PMC - unhandled INTR 0x%08x\n", stat); - return IRQ_HANDLED; -} - -int -nouveau_irq_init(struct drm_device *dev) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - int ret; - - if (nouveau_msi != 0 && dev_priv->card_type >= NV_50) { - ret = pci_enable_msi(dev->pdev); - if (ret == 0) { - NV_INFO(dev, "enabled MSI\n"); - dev_priv->msi_enabled = true; - } - } - - return drm_irq_install(dev); -} - -void -nouveau_irq_fini(struct drm_device *dev) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - - drm_irq_uninstall(dev); - if (dev_priv->msi_enabled) - pci_disable_msi(dev->pdev); -} - -void -nouveau_irq_register(struct drm_device *dev, int status_bit, - void (*handler)(struct drm_device *)) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - unsigned long flags; - - spin_lock_irqsave(&dev_priv->context_switch_lock, flags); - dev_priv->irq_handler[status_bit] = handler; - spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags); -} - -void -nouveau_irq_unregister(struct drm_device *dev, int status_bit) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - unsigned long flags; - - spin_lock_irqsave(&dev_priv->context_switch_lock, flags); - dev_priv->irq_handler[status_bit] = NULL; - spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags); -} |