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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 "drmP.h"
#include "nouveau_drv.h"
#include "nouveau_ramht.h"
#include "nouveau_software.h"
#include "nv50_display.h"
struct nvc0_software_priv {
struct nouveau_software_priv base;
};
struct nvc0_software_chan {
struct nouveau_software_chan base;
struct nouveau_vma dispc_vma[4];
};
u64
nvc0_software_crtc(struct nouveau_channel *chan, int crtc)
{
struct nvc0_software_chan *pch = chan->engctx[NVOBJ_ENGINE_SW];
return pch->dispc_vma[crtc].offset;
}
static int
nvc0_software_context_new(struct nouveau_channel *chan, int engine)
{
struct drm_device *dev = chan->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nvc0_software_priv *psw = nv_engine(dev, NVOBJ_ENGINE_SW);
struct nvc0_software_chan *pch;
int ret = 0, i;
pch = kzalloc(sizeof(*pch), GFP_KERNEL);
if (!pch)
return -ENOMEM;
nouveau_software_context_new(&pch->base);
chan->engctx[engine] = pch;
/* map display semaphore buffers into channel's vm */
for (i = 0; !ret && i < dev->mode_config.num_crtc; i++) {
struct nouveau_bo *bo;
if (dev_priv->card_type >= NV_D0)
bo = nvd0_display_crtc_sema(dev, i);
else
bo = nv50_display(dev)->crtc[i].sem.bo;
ret = nouveau_bo_vma_add(bo, chan->vm, &pch->dispc_vma[i]);
}
if (ret)
psw->base.base.context_del(chan, engine);
return ret;
}
static void
nvc0_software_context_del(struct nouveau_channel *chan, int engine)
{
struct drm_device *dev = chan->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nvc0_software_chan *pch = chan->engctx[engine];
int i;
if (dev_priv->card_type >= NV_D0) {
for (i = 0; i < dev->mode_config.num_crtc; i++) {
struct nouveau_bo *bo = nvd0_display_crtc_sema(dev, i);
nouveau_bo_vma_del(bo, &pch->dispc_vma[i]);
}
} else
if (dev_priv->card_type >= NV_50) {
struct nv50_display *disp = nv50_display(dev);
for (i = 0; i < dev->mode_config.num_crtc; i++) {
struct nv50_display_crtc *dispc = &disp->crtc[i];
nouveau_bo_vma_del(dispc->sem.bo, &pch->dispc_vma[i]);
}
}
chan->engctx[engine] = NULL;
kfree(pch);
}
static int
nvc0_software_object_new(struct nouveau_channel *chan, int engine,
u32 handle, u16 class)
{
return 0;
}
static int
nvc0_software_init(struct drm_device *dev, int engine)
{
return 0;
}
static int
nvc0_software_fini(struct drm_device *dev, int engine, bool suspend)
{
return 0;
}
static void
nvc0_software_destroy(struct drm_device *dev, int engine)
{
struct nvc0_software_priv *psw = nv_engine(dev, engine);
NVOBJ_ENGINE_DEL(dev, SW);
kfree(psw);
}
int
nvc0_software_create(struct drm_device *dev)
{
struct nvc0_software_priv *psw = kzalloc(sizeof(*psw), GFP_KERNEL);
if (!psw)
return -ENOMEM;
psw->base.base.destroy = nvc0_software_destroy;
psw->base.base.init = nvc0_software_init;
psw->base.base.fini = nvc0_software_fini;
psw->base.base.context_new = nvc0_software_context_new;
psw->base.base.context_del = nvc0_software_context_del;
psw->base.base.object_new = nvc0_software_object_new;
nouveau_software_create(&psw->base);
NVOBJ_ENGINE_ADD(dev, SW, &psw->base.base);
NVOBJ_CLASS(dev, 0x906e, SW);
return 0;
}
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