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/*
* 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));
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);
}
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