| /* |
| * Copyright 2012 Red Hat Inc. |
| * |
| * 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 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 HOLDER(S) OR AUTHOR(S) 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 |
| */ |
| |
| #include <subdev/mc.h> |
| |
| #include "nouveau_drm.h" |
| #include "nouveau_irq.h" |
| #include "nv50_display.h" |
| |
| void |
| nouveau_irq_preinstall(struct drm_device *dev) |
| { |
| nv_wr32(nouveau_dev(dev), 0x000140, 0x00000000); |
| } |
| |
| int |
| nouveau_irq_postinstall(struct drm_device *dev) |
| { |
| nv_wr32(nouveau_dev(dev), 0x000140, 0x00000001); |
| return 0; |
| } |
| |
| void |
| nouveau_irq_uninstall(struct drm_device *dev) |
| { |
| nv_wr32(nouveau_dev(dev), 0x000140, 0x00000000); |
| } |
| |
| irqreturn_t |
| nouveau_irq_handler(DRM_IRQ_ARGS) |
| { |
| struct drm_device *dev = arg; |
| struct nouveau_device *device = nouveau_dev(dev); |
| struct nouveau_mc *pmc = nouveau_mc(device); |
| u32 stat; |
| |
| stat = nv_rd32(device, 0x000100); |
| if (stat == 0 || stat == ~0) |
| return IRQ_NONE; |
| |
| nv_subdev(pmc)->intr(nv_subdev(pmc)); |
| |
| if (dev->mode_config.num_crtc) { |
| if (device->card_type >= NV_D0) { |
| if (nv_rd32(device, 0x000100) & 0x04000000) |
| nvd0_display_intr(dev); |
| } else |
| if (device->card_type >= NV_50) { |
| if (nv_rd32(device, 0x000100) & 0x04000000) |
| nv50_display_intr(dev); |
| } |
| } |
| |
| return IRQ_HANDLED; |
| } |
| |
| int |
| nouveau_irq_init(struct drm_device *dev) |
| { |
| return drm_irq_install(dev); |
| } |
| |
| void |
| nouveau_irq_fini(struct drm_device *dev) |
| { |
| drm_irq_uninstall(dev); |
| } |