76 lines
2 KiB
C
76 lines
2 KiB
C
/*
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* Copyright 2012 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs
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*/
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#include <subdev/mc.h>
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#include "nouveau_drm.h"
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#include "nouveau_irq.h"
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#include "nv50_display.h"
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void
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nouveau_irq_preinstall(struct drm_device *dev)
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{
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nv_wr32(nouveau_dev(dev), 0x000140, 0x00000000);
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}
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int
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nouveau_irq_postinstall(struct drm_device *dev)
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{
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nv_wr32(nouveau_dev(dev), 0x000140, 0x00000001);
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return 0;
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}
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void
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nouveau_irq_uninstall(struct drm_device *dev)
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{
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nv_wr32(nouveau_dev(dev), 0x000140, 0x00000000);
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}
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irqreturn_t
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nouveau_irq_handler(DRM_IRQ_ARGS)
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{
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struct drm_device *dev = arg;
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struct nouveau_device *device = nouveau_dev(dev);
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struct nouveau_mc *pmc = nouveau_mc(device);
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u32 stat;
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stat = nv_rd32(device, 0x000100);
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if (stat == 0 || stat == ~0)
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return IRQ_NONE;
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nv_subdev(pmc)->intr(nv_subdev(pmc));
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return IRQ_HANDLED;
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}
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int
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nouveau_irq_init(struct drm_device *dev)
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{
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return drm_irq_install(dev);
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}
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void
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nouveau_irq_fini(struct drm_device *dev)
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{
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drm_irq_uninstall(dev);
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}
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