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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 nv50_software_priv {
struct nouveau_software_priv base;
};
struct nv50_software_chan {
struct nouveau_software_chan base;
struct {
struct nouveau_gpuobj *object;
} vblank;
};
static int
mthd_dma_vblsem(struct nouveau_channel *chan, u32 class, u32 mthd, u32 data)
{
struct nv50_software_chan *pch = chan->engctx[NVOBJ_ENGINE_SW];
struct nouveau_gpuobj *gpuobj;
gpuobj = nouveau_ramht_find(chan, data);
if (!gpuobj)
return -ENOENT;
if (nouveau_notifier_offset(gpuobj, NULL))
return -EINVAL;
pch->vblank.object = gpuobj;
pch->base.vblank.offset = ~0;
return 0;
}
static int
mthd_vblsem_offset(struct nouveau_channel *chan, u32 class, u32 mthd, u32 data)
{
struct nv50_software_chan *pch = chan->engctx[NVOBJ_ENGINE_SW];
if (nouveau_notifier_offset(pch->vblank.object, &data))
return -ERANGE;
pch->base.vblank.offset = data >> 2;
return 0;
}
static int
mthd_vblsem_value(struct nouveau_channel *chan, u32 class, u32 mthd, u32 data)
{
struct nv50_software_chan *pch = chan->engctx[NVOBJ_ENGINE_SW];
pch->base.vblank.value = data;
return 0;
}
static int
mthd_vblsem_release(struct nouveau_channel *chan, u32 class, u32 mthd, u32 data)
{
struct nv50_software_priv *psw = nv_engine(chan->dev, NVOBJ_ENGINE_SW);
struct nv50_software_chan *pch = chan->engctx[NVOBJ_ENGINE_SW];
struct drm_device *dev = chan->dev;
if (!pch->vblank.object || pch->base.vblank.offset == ~0 || data > 1)
return -EINVAL;
drm_vblank_get(dev, data);
pch->base.vblank.head = data;
list_add(&pch->base.vblank.list, &psw->base.vblank);
return 0;
}
static int
mthd_flip(struct nouveau_channel *chan, u32 class, u32 mthd, u32 data)
{
nouveau_finish_page_flip(chan, NULL);
return 0;
}
static int
nv50_software_context_new(struct nouveau_channel *chan, int engine)
{
struct nv50_software_priv *psw = nv_engine(chan->dev, NVOBJ_ENGINE_SW);
struct nv50_display *pdisp = nv50_display(chan->dev);
struct nv50_software_chan *pch;
int ret = 0, i;
pch = kzalloc(sizeof(*pch), GFP_KERNEL);
if (!pch)
return -ENOMEM;
nouveau_software_context_new(&pch->base);
pch->base.vblank.bo = chan->notifier_bo;
chan->engctx[engine] = pch;
/* dma objects for display sync channel semaphore blocks */
for (i = 0; i < chan->dev->mode_config.num_crtc; i++) {
struct nv50_display_crtc *dispc = &pdisp->crtc[i];
struct nouveau_gpuobj *obj = NULL;
ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY,
dispc->sem.bo->bo.offset, 0x1000,
NV_MEM_ACCESS_RW,
NV_MEM_TARGET_VRAM, &obj);
if (ret)
break;
ret = nouveau_ramht_insert(chan, NvEvoSema0 + i, obj);
nouveau_gpuobj_ref(NULL, &obj);
}
if (ret)
psw->base.base.context_del(chan, engine);
return ret;
}
static void
nv50_software_context_del(struct nouveau_channel *chan, int engine)
{
struct nv50_software_chan *pch = chan->engctx[engine];
chan->engctx[engine] = NULL;
kfree(pch);
}
static int
nv50_software_object_new(struct nouveau_channel *chan, int engine,
u32 handle, u16 class)
{
struct drm_device *dev = chan->dev;
struct nouveau_gpuobj *obj = NULL;
int ret;
ret = nouveau_gpuobj_new(dev, chan, 16, 16, 0, &obj);
if (ret)
return ret;
obj->engine = 0;
obj->class = class;
ret = nouveau_ramht_insert(chan, handle, obj);
nouveau_gpuobj_ref(NULL, &obj);
return ret;
}
static int
nv50_software_init(struct drm_device *dev, int engine)
{
return 0;
}
static int
nv50_software_fini(struct drm_device *dev, int engine, bool suspend)
{
return 0;
}
static void
nv50_software_destroy(struct drm_device *dev, int engine)
{
struct nv50_software_priv *psw = nv_engine(dev, engine);
NVOBJ_ENGINE_DEL(dev, SW);
kfree(psw);
}
int
nv50_software_create(struct drm_device *dev)
{
struct nv50_software_priv *psw = kzalloc(sizeof(*psw), GFP_KERNEL);
if (!psw)
return -ENOMEM;
psw->base.base.destroy = nv50_software_destroy;
psw->base.base.init = nv50_software_init;
psw->base.base.fini = nv50_software_fini;
psw->base.base.context_new = nv50_software_context_new;
psw->base.base.context_del = nv50_software_context_del;
psw->base.base.object_new = nv50_software_object_new;
nouveau_software_create(&psw->base);
NVOBJ_ENGINE_ADD(dev, SW, &psw->base.base);
NVOBJ_CLASS(dev, 0x506e, SW);
NVOBJ_MTHD (dev, 0x506e, 0x018c, mthd_dma_vblsem);
NVOBJ_MTHD (dev, 0x506e, 0x0400, mthd_vblsem_offset);
NVOBJ_MTHD (dev, 0x506e, 0x0404, mthd_vblsem_value);
NVOBJ_MTHD (dev, 0x506e, 0x0408, mthd_vblsem_release);
NVOBJ_MTHD (dev, 0x506e, 0x0500, mthd_flip);
return 0;
}
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