~ubuntu-branches/ubuntu/raring/linux-lowlatency/raring : contents of drivers/gpu/drm/nouveau/nouveau

~ubuntu-branches/ubuntu/raring/linux-lowlatency/raring : (revision 28)

/*
 * 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.
 *
 */

#include <core/object.h>
#include <core/client.h>
#include <core/device.h>
#include <core/class.h>
#include <core/mm.h>

#include <subdev/fb.h>
#include <subdev/timer.h>
#include <subdev/instmem.h>

#include "nouveau_drm.h"
#include "nouveau_dma.h"
#include "nouveau_gem.h"
#include "nouveau_chan.h"
#include "nouveau_abi16.h"

struct nouveau_abi16 *
nouveau_abi16_get(struct drm_file *file_priv, struct drm_device *dev)
{
	struct nouveau_cli *cli = nouveau_cli(file_priv);
	mutex_lock(&cli->mutex);
	if (!cli->abi16) {
		struct nouveau_abi16 *abi16;
		cli->abi16 = abi16 = kzalloc(sizeof(*abi16), GFP_KERNEL);
		if (cli->abi16) {
			INIT_LIST_HEAD(&abi16->channels);
			abi16->client = nv_object(cli);

			/* allocate device object targeting client's default
			 * device (ie. the one that belongs to the fd it
			 * opened)
			 */
			if (nouveau_object_new(abi16->client, NVDRM_CLIENT,
					       NVDRM_DEVICE, 0x0080,
					       &(struct nv_device_class) {
						.device = ~0ULL,
					       },
					       sizeof(struct nv_device_class),
					       &abi16->device) == 0)
				return cli->abi16;

			kfree(cli->abi16);
			cli->abi16 = NULL;
		}

		mutex_unlock(&cli->mutex);
	}
	return cli->abi16;
}

int
nouveau_abi16_put(struct nouveau_abi16 *abi16, int ret)
{
	struct nouveau_cli *cli = (void *)abi16->client;
	mutex_unlock(&cli->mutex);
	return ret;
}

u16
nouveau_abi16_swclass(struct nouveau_drm *drm)
{
	switch (nv_device(drm->device)->card_type) {
	case NV_04:
		return 0x006e;
	case NV_10:
	case NV_20:
	case NV_30:
	case NV_40:
		return 0x016e;
	case NV_50:
		return 0x506e;
	case NV_C0:
	case NV_D0:
	case NV_E0:
		return 0x906e;
	}

	return 0x0000;
}

static void
nouveau_abi16_ntfy_fini(struct nouveau_abi16_chan *chan,
			struct nouveau_abi16_ntfy *ntfy)
{
	nouveau_mm_free(&chan->heap, &ntfy->node);
	list_del(&ntfy->head);
	kfree(ntfy);
}

static void
nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16,
			struct nouveau_abi16_chan *chan)
{
	struct nouveau_abi16_ntfy *ntfy, *temp;

	/* cleanup notifier state */
	list_for_each_entry_safe(ntfy, temp, &chan->notifiers, head) {
		nouveau_abi16_ntfy_fini(chan, ntfy);
	}

	if (chan->ntfy) {
		nouveau_bo_vma_del(chan->ntfy, &chan->ntfy_vma);
		drm_gem_object_unreference_unlocked(chan->ntfy->gem);
	}

	if (chan->heap.block_size)
		nouveau_mm_fini(&chan->heap);

	/* destroy channel object, all children will be killed too */
	if (chan->chan) {
		abi16->handles &= ~(1 << (chan->chan->handle & 0xffff));
		nouveau_channel_del(&chan->chan);
	}

	list_del(&chan->head);
	kfree(chan);
}

void
nouveau_abi16_fini(struct nouveau_abi16 *abi16)
{
	struct nouveau_cli *cli = (void *)abi16->client;
	struct nouveau_abi16_chan *chan, *temp;

	/* cleanup channels */
	list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
		nouveau_abi16_chan_fini(abi16, chan);
	}

	/* destroy the device object */
	nouveau_object_del(abi16->client, NVDRM_CLIENT, NVDRM_DEVICE);

	kfree(cli->abi16);
	cli->abi16 = NULL;
}

int
nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
{
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_device *device = nv_device(drm->device);
	struct nouveau_timer *ptimer = nouveau_timer(device);
	struct drm_nouveau_getparam *getparam = data;

	switch (getparam->param) {
	case NOUVEAU_GETPARAM_CHIPSET_ID:
		getparam->value = device->chipset;
		break;
	case NOUVEAU_GETPARAM_PCI_VENDOR:
		getparam->value = dev->pci_vendor;
		break;
	case NOUVEAU_GETPARAM_PCI_DEVICE:
		getparam->value = dev->pci_device;
		break;
	case NOUVEAU_GETPARAM_BUS_TYPE:
		if (drm_pci_device_is_agp(dev))
			getparam->value = 0;
		else
		if (!pci_is_pcie(dev->pdev))
			getparam->value = 1;
		else
			getparam->value = 2;
		break;
	case NOUVEAU_GETPARAM_FB_SIZE:
		getparam->value = drm->gem.vram_available;
		break;
	case NOUVEAU_GETPARAM_AGP_SIZE:
		getparam->value = drm->gem.gart_available;
		break;
	case NOUVEAU_GETPARAM_VM_VRAM_BASE:
		getparam->value = 0; /* deprecated */
		break;
	case NOUVEAU_GETPARAM_PTIMER_TIME:
		getparam->value = ptimer->read(ptimer);
		break;
	case NOUVEAU_GETPARAM_HAS_BO_USAGE:
		getparam->value = 1;
		break;
	case NOUVEAU_GETPARAM_HAS_PAGEFLIP:
		getparam->value = 1;
		break;
	case NOUVEAU_GETPARAM_GRAPH_UNITS:
		/* NV40 and NV50 versions are quite different, but register
		 * address is the same. User is supposed to know the card
		 * family anyway... */
		if (device->chipset >= 0x40) {
			getparam->value = nv_rd32(device, 0x001540);
			break;
		}
		/* FALLTHRU */
	default:
		nv_debug(device, "unknown parameter %lld\n", getparam->param);
		return -EINVAL;
	}

	return 0;
}

int
nouveau_abi16_ioctl_setparam(ABI16_IOCTL_ARGS)
{
	return -EINVAL;
}

int
nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
{
	struct drm_nouveau_channel_alloc *init = data;
	struct nouveau_cli *cli = nouveau_cli(file_priv);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
	struct nouveau_abi16_chan *chan;
	struct nouveau_client *client;
	struct nouveau_device *device;
	struct nouveau_instmem *imem;
	struct nouveau_fb *pfb;
	int ret;

	if (unlikely(!abi16))
		return -ENOMEM;

	if (!drm->channel)
		return nouveau_abi16_put(abi16, -ENODEV);

	client = nv_client(abi16->client);

	if (init->fb_ctxdma_handle == ~0 || init->tt_ctxdma_handle == ~0)
		return nouveau_abi16_put(abi16, -EINVAL);

	device = nv_device(abi16->device);
	imem   = nouveau_instmem(device);
	pfb    = nouveau_fb(device);

	/* allocate "abi16 channel" data and make up a handle for it */
	init->channel = ffsll(~abi16->handles);
	if (!init->channel--)
		return nouveau_abi16_put(abi16, -ENOSPC);

	chan = kzalloc(sizeof(*chan), GFP_KERNEL);
	if (!chan)
		return nouveau_abi16_put(abi16, -ENOMEM);

	INIT_LIST_HEAD(&chan->notifiers);
	list_add(&chan->head, &abi16->channels);
	abi16->handles |= (1 << init->channel);

	/* create channel object and initialise dma and fence management */
	if (device->card_type >= NV_E0) {
		init->fb_ctxdma_handle = NVE0_CHANNEL_IND_ENGINE_GR;
		init->tt_ctxdma_handle = 0;
	}

	ret = nouveau_channel_new(drm, cli, NVDRM_DEVICE, NVDRM_CHAN |
				  init->channel, init->fb_ctxdma_handle,
				  init->tt_ctxdma_handle, &chan->chan);
	if (ret)
		goto done;

	if (device->card_type >= NV_50)
		init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM |
					NOUVEAU_GEM_DOMAIN_GART;
	else
	if (chan->chan->push.buffer->bo.mem.mem_type == TTM_PL_VRAM)
		init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM;
	else
		init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_GART;

	if (device->card_type < NV_C0) {
		init->subchan[0].handle = 0x00000000;
		init->subchan[0].grclass = 0x0000;
		init->subchan[1].handle = NvSw;
		init->subchan[1].grclass = 0x506e;
		init->nr_subchan = 2;
	}

	/* Named memory object area */
	ret = nouveau_gem_new(dev, PAGE_SIZE, 0, NOUVEAU_GEM_DOMAIN_GART,
			      0, 0, &chan->ntfy);
	if (ret == 0)
		ret = nouveau_bo_pin(chan->ntfy, TTM_PL_FLAG_TT);
	if (ret)
		goto done;

	if (device->card_type >= NV_50) {
		ret = nouveau_bo_vma_add(chan->ntfy, client->vm,
					&chan->ntfy_vma);
		if (ret)
			goto done;
	}

	ret = drm_gem_handle_create(file_priv, chan->ntfy->gem,
				    &init->notifier_handle);
	if (ret)
		goto done;

	ret = nouveau_mm_init(&chan->heap, 0, PAGE_SIZE, 1);
done:
	if (ret)
		nouveau_abi16_chan_fini(abi16, chan);
	return nouveau_abi16_put(abi16, ret);
}


int
nouveau_abi16_ioctl_channel_free(ABI16_IOCTL_ARGS)
{
	struct drm_nouveau_channel_free *req = data;
	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
	struct nouveau_abi16_chan *chan;
	int ret = -ENOENT;

	if (unlikely(!abi16))
		return -ENOMEM;

	list_for_each_entry(chan, &abi16->channels, head) {
		if (chan->chan->handle == (NVDRM_CHAN | req->channel)) {
			nouveau_abi16_chan_fini(abi16, chan);
			return nouveau_abi16_put(abi16, 0);
		}
	}

	return nouveau_abi16_put(abi16, ret);
}

int
nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)
{
	struct drm_nouveau_grobj_alloc *init = data;
	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_object *object;
	int ret;

	if (unlikely(!abi16))
		return -ENOMEM;

	if (init->handle == ~0)
		return nouveau_abi16_put(abi16, -EINVAL);

	/* compatibility with userspace that assumes 506e for all chipsets */
	if (init->class == 0x506e) {
		init->class = nouveau_abi16_swclass(drm);
		if (init->class == 0x906e)
			return nouveau_abi16_put(abi16, 0);
	}

	ret = nouveau_object_new(abi16->client, NVDRM_CHAN | init->channel,
				  init->handle, init->class, NULL, 0, &object);
	return nouveau_abi16_put(abi16, ret);
}

int
nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
{
	struct drm_nouveau_notifierobj_alloc *info = data;
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_device *device = nv_device(drm->device);
	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
	struct nouveau_abi16_chan *chan, *temp;
	struct nouveau_abi16_ntfy *ntfy;
	struct nouveau_object *object;
	struct nv_dma_class args;
	int ret;

	if (unlikely(!abi16))
		return -ENOMEM;

	/* completely unnecessary for these chipsets... */
	if (unlikely(nv_device(abi16->device)->card_type >= NV_C0))
		return nouveau_abi16_put(abi16, -EINVAL);

	list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
		if (chan->chan->handle == (NVDRM_CHAN | info->channel))
			break;
		chan = NULL;
	}

	if (!chan)
		return nouveau_abi16_put(abi16, -ENOENT);

	ntfy = kzalloc(sizeof(*ntfy), GFP_KERNEL);
	if (!ntfy)
		return nouveau_abi16_put(abi16, -ENOMEM);

	list_add(&ntfy->head, &chan->notifiers);
	ntfy->handle = info->handle;

	ret = nouveau_mm_head(&chan->heap, 1, info->size, info->size, 1,
			      &ntfy->node);
	if (ret)
		goto done;

	args.start = ntfy->node->offset;
	args.limit = ntfy->node->offset + ntfy->node->length - 1;
	if (device->card_type >= NV_50) {
		args.flags  = NV_DMA_TARGET_VM | NV_DMA_ACCESS_VM;
		args.start += chan->ntfy_vma.offset;
		args.limit += chan->ntfy_vma.offset;
	} else
	if (drm->agp.stat == ENABLED) {
		args.flags  = NV_DMA_TARGET_AGP | NV_DMA_ACCESS_RDWR;
		args.start += drm->agp.base + chan->ntfy->bo.offset;
		args.limit += drm->agp.base + chan->ntfy->bo.offset;
	} else {
		args.flags  = NV_DMA_TARGET_VM | NV_DMA_ACCESS_RDWR;
		args.start += chan->ntfy->bo.offset;
		args.limit += chan->ntfy->bo.offset;
	}

	ret = nouveau_object_new(abi16->client, chan->chan->handle,
				 ntfy->handle, 0x003d, &args,
				 sizeof(args), &object);
	if (ret)
		goto done;

done:
	if (ret)
		nouveau_abi16_ntfy_fini(chan, ntfy);
	return nouveau_abi16_put(abi16, ret);
}

int
nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS)
{
	struct drm_nouveau_gpuobj_free *fini = data;
	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
	struct nouveau_abi16_chan *chan, *temp;
	struct nouveau_abi16_ntfy *ntfy;
	int ret;

	if (unlikely(!abi16))
		return -ENOMEM;

	list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
		if (chan->chan->handle == (NVDRM_CHAN | fini->channel))
			break;
		chan = NULL;
	}

	if (!chan)
		return nouveau_abi16_put(abi16, -ENOENT);

	/* synchronize with the user channel and destroy the gpu object */
	nouveau_channel_idle(chan->chan);

	ret = nouveau_object_del(abi16->client, chan->chan->handle, fini->handle);
	if (ret)
		return nouveau_abi16_put(abi16, ret);

	/* cleanup extra state if this object was a notifier */
	list_for_each_entry(ntfy, &chan->notifiers, head) {
		if (ntfy->handle == fini->handle) {
			nouveau_mm_free(&chan->heap, &ntfy->node);
			list_del(&ntfy->head);
			break;
		}
	}

	return nouveau_abi16_put(abi16, 0);
}

24 by Andy Whitcroft, Andy Whitcroft [ Andy Whitcroft ]	1	/*
	2	* Copyright 2012 Red Hat Inc.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	18	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	19	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	20	* OTHER DEALINGS IN THE SOFTWARE.
	21	*
	22	*/
	23
	24	#include <core/object.h>
	25	#include <core/client.h>
	26	#include <core/device.h>
	27	#include <core/class.h>
	28	#include <core/mm.h>
	29
	30	#include <subdev/fb.h>
	31	#include <subdev/timer.h>
	32	#include <subdev/instmem.h>
	33
	34	#include "nouveau_drm.h"
	35	#include "nouveau_dma.h"
	36	#include "nouveau_gem.h"
	37	#include "nouveau_chan.h"
	38	#include "nouveau_abi16.h"
	39
	40	struct nouveau_abi16 *
	41	nouveau_abi16_get(struct drm_file file_priv, struct drm_device dev)
	42	{
	43	struct nouveau_cli *cli = nouveau_cli(file_priv);
	44	mutex_lock(&cli->mutex);
	45	if (!cli->abi16) {
	46	struct nouveau_abi16 *abi16;
	47	cli->abi16 = abi16 = kzalloc(sizeof(*abi16), GFP_KERNEL);
	48	if (cli->abi16) {
	49	INIT_LIST_HEAD(&abi16->channels);
	50	abi16->client = nv_object(cli);
	51
	52	/* allocate device object targeting client's default
	53	* device (ie. the one that belongs to the fd it
	54	* opened)
	55	*/
	56	if (nouveau_object_new(abi16->client, NVDRM_CLIENT,
	57	NVDRM_DEVICE, 0x0080,
	58	&(struct nv_device_class) {
	59	.device = ~0ULL,
	60	},
	61	sizeof(struct nv_device_class),
	62	&abi16->device) == 0)
	63	return cli->abi16;
	64
65	kfree(cli->abi16);
66	cli->abi16 = NULL;
67	}
68
69	mutex_unlock(&cli->mutex);
70	}
71	return cli->abi16;
72	}
73
74	int
75	nouveau_abi16_put(struct nouveau_abi16 *abi16, int ret)
76	{
77	struct nouveau_cli cli = (void )abi16->client;
78	mutex_unlock(&cli->mutex);
79	return ret;
80	}
81
82	u16
83	nouveau_abi16_swclass(struct nouveau_drm *drm)
84	{
85	switch (nv_device(drm->device)->card_type) {
86	case NV_04:
87	return 0x006e;
88	case NV_10:
89	case NV_20:
90	case NV_30:
91	case NV_40:
92	return 0x016e;
93	case NV_50:
94	return 0x506e;
95	case NV_C0:
96	case NV_D0:
97	case NV_E0:
98	return 0x906e;
99	}
100
101	return 0x0000;
102	}
103
104	static void
105	nouveau_abi16_ntfy_fini(struct nouveau_abi16_chan *chan,
106	struct nouveau_abi16_ntfy *ntfy)
107	{
108	nouveau_mm_free(&chan->heap, &ntfy->node);
109	list_del(&ntfy->head);
110	kfree(ntfy);
111	}
112
113	static void
114	nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16,
115	struct nouveau_abi16_chan *chan)
116	{
117	struct nouveau_abi16_ntfy ntfy, temp;
118
119	/* cleanup notifier state */
120	list_for_each_entry_safe(ntfy, temp, &chan->notifiers, head) {
121	nouveau_abi16_ntfy_fini(chan, ntfy);
122	}
123
124	if (chan->ntfy) {
125	nouveau_bo_vma_del(chan->ntfy, &chan->ntfy_vma);
126	drm_gem_object_unreference_unlocked(chan->ntfy->gem);
127	}
128
129	if (chan->heap.block_size)
130	nouveau_mm_fini(&chan->heap);
131
132	/* destroy channel object, all children will be killed too */
133	if (chan->chan) {
134	abi16->handles &= ~(1 << (chan->chan->handle & 0xffff));
135	nouveau_channel_del(&chan->chan);
136	}
137
138	list_del(&chan->head);
139	kfree(chan);
140	}
141
142	void
143	nouveau_abi16_fini(struct nouveau_abi16 *abi16)
144	{
145	struct nouveau_cli cli = (void )abi16->client;
146	struct nouveau_abi16_chan chan, temp;
147
148	/* cleanup channels */
149	list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
150	nouveau_abi16_chan_fini(abi16, chan);
151	}
152
153	/* destroy the device object */
154	nouveau_object_del(abi16->client, NVDRM_CLIENT, NVDRM_DEVICE);
155
156	kfree(cli->abi16);
157	cli->abi16 = NULL;
158	}
159
160	int
161	nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
162	{
163	struct nouveau_drm *drm = nouveau_drm(dev);
164	struct nouveau_device *device = nv_device(drm->device);
165	struct nouveau_timer *ptimer = nouveau_timer(device);
166	struct drm_nouveau_getparam *getparam = data;
167
168	switch (getparam->param) {
169	case NOUVEAU_GETPARAM_CHIPSET_ID:
170	getparam->value = device->chipset;
171	break;
172	case NOUVEAU_GETPARAM_PCI_VENDOR:
173	getparam->value = dev->pci_vendor;
174	break;
175	case NOUVEAU_GETPARAM_PCI_DEVICE:
176	getparam->value = dev->pci_device;
177	break;
178	case NOUVEAU_GETPARAM_BUS_TYPE:
179	if (drm_pci_device_is_agp(dev))
180	getparam->value = 0;
181	else
182	if (!pci_is_pcie(dev->pdev))
183	getparam->value = 1;
184	else
185	getparam->value = 2;
186	break;
187	case NOUVEAU_GETPARAM_FB_SIZE:
188	getparam->value = drm->gem.vram_available;
189	break;
190	case NOUVEAU_GETPARAM_AGP_SIZE:
191	getparam->value = drm->gem.gart_available;
192	break;
193	case NOUVEAU_GETPARAM_VM_VRAM_BASE:
194	getparam->value = 0; /* deprecated */
195	break;
196	case NOUVEAU_GETPARAM_PTIMER_TIME:
197	getparam->value = ptimer->read(ptimer);
198	break;
199	case NOUVEAU_GETPARAM_HAS_BO_USAGE:
200	getparam->value = 1;
201	break;
202	case NOUVEAU_GETPARAM_HAS_PAGEFLIP:
203	getparam->value = 1;
204	break;
205	case NOUVEAU_GETPARAM_GRAPH_UNITS:
206	/* NV40 and NV50 versions are quite different, but register
207	* address is the same. User is supposed to know the card
208	* family anyway... */
209	if (device->chipset >= 0x40) {
210	getparam->value = nv_rd32(device, 0x001540);
211	break;
212	}
213	/* FALLTHRU */
214	default:
215	nv_debug(device, "unknown parameter %lld\n", getparam->param);
216	return -EINVAL;
217	}
218
219	return 0;
220	}
221
222	int
223	nouveau_abi16_ioctl_setparam(ABI16_IOCTL_ARGS)
224	{
225	return -EINVAL;
226	}
227
228	int
229	nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
230	{
231	struct drm_nouveau_channel_alloc *init = data;
232	struct nouveau_cli *cli = nouveau_cli(file_priv);
233	struct nouveau_drm *drm = nouveau_drm(dev);
234	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
235	struct nouveau_abi16_chan *chan;
236	struct nouveau_client *client;
237	struct nouveau_device *device;
238	struct nouveau_instmem *imem;
239	struct nouveau_fb *pfb;
240	int ret;
241
242	if (unlikely(!abi16))
243	return -ENOMEM;
28 by Andy Whitcroft, Andy Whitcroft, Ubuntu: 3.7.0-4.12, Ubuntu: 3.7.0-4.11, Ubuntu: 3.7.0-4.10 [ Andy Whitcroft ]	244
	245	if (!drm->channel)
	246	return nouveau_abi16_put(abi16, -ENODEV);
	247
24 by Andy Whitcroft, Andy Whitcroft [ Andy Whitcroft ]	248	client = nv_client(abi16->client);
	249
	250	if (init->fb_ctxdma_handle == ~0 \|\| init->tt_ctxdma_handle == ~0)
	251	return nouveau_abi16_put(abi16, -EINVAL);
	252
	253	device = nv_device(abi16->device);
	254	imem = nouveau_instmem(device);
	255	pfb = nouveau_fb(device);
	256
	257	/* allocate "abi16 channel" data and make up a handle for it */
	258	init->channel = ffsll(~abi16->handles);
	259	if (!init->channel--)
	260	return nouveau_abi16_put(abi16, -ENOSPC);
	261
	262	chan = kzalloc(sizeof(*chan), GFP_KERNEL);
	263	if (!chan)
	264	return nouveau_abi16_put(abi16, -ENOMEM);
	265
	266	INIT_LIST_HEAD(&chan->notifiers);
	267	list_add(&chan->head, &abi16->channels);
	268	abi16->handles \|= (1 << init->channel);
	269
	270	/* create channel object and initialise dma and fence management */
	271	if (device->card_type >= NV_E0) {
	272	init->fb_ctxdma_handle = NVE0_CHANNEL_IND_ENGINE_GR;
	273	init->tt_ctxdma_handle = 0;
	274	}
	275
	276	ret = nouveau_channel_new(drm, cli, NVDRM_DEVICE, NVDRM_CHAN \|
	277	init->channel, init->fb_ctxdma_handle,
	278	init->tt_ctxdma_handle, &chan->chan);
	279	if (ret)
	280	goto done;
	281
	282	if (device->card_type >= NV_50)
	283	init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM \|
	284	NOUVEAU_GEM_DOMAIN_GART;
	285	else
	286	if (chan->chan->push.buffer->bo.mem.mem_type == TTM_PL_VRAM)
	287	init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM;
	288	else
	289	init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_GART;
	290
	291	if (device->card_type < NV_C0) {
	292	init->subchan[0].handle = 0x00000000;
	293	init->subchan[0].grclass = 0x0000;
	294	init->subchan[1].handle = NvSw;
	295	init->subchan[1].grclass = 0x506e;
	296	init->nr_subchan = 2;
	297	}
	298
	299	/* Named memory object area */
	300	ret = nouveau_gem_new(dev, PAGE_SIZE, 0, NOUVEAU_GEM_DOMAIN_GART,
	301	0, 0, &chan->ntfy);
	302	if (ret == 0)
	303	ret = nouveau_bo_pin(chan->ntfy, TTM_PL_FLAG_TT);
	304	if (ret)
	305	goto done;
	306
	307	if (device->card_type >= NV_50) {
	308	ret = nouveau_bo_vma_add(chan->ntfy, client->vm,
	309	&chan->ntfy_vma);
	310	if (ret)
	311	goto done;
312	}
313
314	ret = drm_gem_handle_create(file_priv, chan->ntfy->gem,
315	&init->notifier_handle);
316	if (ret)
317	goto done;
318
319	ret = nouveau_mm_init(&chan->heap, 0, PAGE_SIZE, 1);
320	done:
321	if (ret)
322	nouveau_abi16_chan_fini(abi16, chan);
323	return nouveau_abi16_put(abi16, ret);
324	}
325
326
327	int
328	nouveau_abi16_ioctl_channel_free(ABI16_IOCTL_ARGS)
329	{
330	struct drm_nouveau_channel_free *req = data;
331	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
332	struct nouveau_abi16_chan *chan;
333	int ret = -ENOENT;
334
335	if (unlikely(!abi16))
336	return -ENOMEM;
337
338	list_for_each_entry(chan, &abi16->channels, head) {
339	if (chan->chan->handle == (NVDRM_CHAN \| req->channel)) {
340	nouveau_abi16_chan_fini(abi16, chan);
341	return nouveau_abi16_put(abi16, 0);
342	}
343	}
344
345	return nouveau_abi16_put(abi16, ret);
346	}
347
348	int
349	nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)
350	{
351	struct drm_nouveau_grobj_alloc *init = data;
352	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
353	struct nouveau_drm *drm = nouveau_drm(dev);
354	struct nouveau_object *object;
355	int ret;
356
357	if (unlikely(!abi16))
358	return -ENOMEM;
359
360	if (init->handle == ~0)
361	return nouveau_abi16_put(abi16, -EINVAL);
362
363	/* compatibility with userspace that assumes 506e for all chipsets */
364	if (init->class == 0x506e) {
365	init->class = nouveau_abi16_swclass(drm);
366	if (init->class == 0x906e)
367	return nouveau_abi16_put(abi16, 0);
368	}
369
370	ret = nouveau_object_new(abi16->client, NVDRM_CHAN \| init->channel,
371	init->handle, init->class, NULL, 0, &object);
372	return nouveau_abi16_put(abi16, ret);
373	}
374
375	int
376	nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
377	{
378	struct drm_nouveau_notifierobj_alloc *info = data;
379	struct nouveau_drm *drm = nouveau_drm(dev);
380	struct nouveau_device *device = nv_device(drm->device);
381	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
382	struct nouveau_abi16_chan chan, temp;
383	struct nouveau_abi16_ntfy *ntfy;
384	struct nouveau_object *object;
385	struct nv_dma_class args;
386	int ret;
387
388	if (unlikely(!abi16))
389	return -ENOMEM;
390
391	/* completely unnecessary for these chipsets... */
392	if (unlikely(nv_device(abi16->device)->card_type >= NV_C0))
393	return nouveau_abi16_put(abi16, -EINVAL);
394
395	list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
396	if (chan->chan->handle == (NVDRM_CHAN \| info->channel))
397	break;
398	chan = NULL;
399	}
400
401	if (!chan)
402	return nouveau_abi16_put(abi16, -ENOENT);
403
404	ntfy = kzalloc(sizeof(*ntfy), GFP_KERNEL);
405	if (!ntfy)
406	return nouveau_abi16_put(abi16, -ENOMEM);
407
408	list_add(&ntfy->head, &chan->notifiers);
409	ntfy->handle = info->handle;
410
411	ret = nouveau_mm_head(&chan->heap, 1, info->size, info->size, 1,
412	&ntfy->node);
413	if (ret)
414	goto done;
415
416	args.start = ntfy->node->offset;
417	args.limit = ntfy->node->offset + ntfy->node->length - 1;
418	if (device->card_type >= NV_50) {
419	args.flags = NV_DMA_TARGET_VM \| NV_DMA_ACCESS_VM;
420	args.start += chan->ntfy_vma.offset;
421	args.limit += chan->ntfy_vma.offset;
422	} else
423	if (drm->agp.stat == ENABLED) {
424	args.flags = NV_DMA_TARGET_AGP \| NV_DMA_ACCESS_RDWR;
425	args.start += drm->agp.base + chan->ntfy->bo.offset;
426	args.limit += drm->agp.base + chan->ntfy->bo.offset;
427	} else {
428	args.flags = NV_DMA_TARGET_VM \| NV_DMA_ACCESS_RDWR;
429	args.start += chan->ntfy->bo.offset;
430	args.limit += chan->ntfy->bo.offset;
431	}
432
433	ret = nouveau_object_new(abi16->client, chan->chan->handle,
434	ntfy->handle, 0x003d, &args,
435	sizeof(args), &object);
436	if (ret)
437	goto done;
438
439	done:
440	if (ret)
441	nouveau_abi16_ntfy_fini(chan, ntfy);
442	return nouveau_abi16_put(abi16, ret);
443	}
444
445	int
446	nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS)
447	{
448	struct drm_nouveau_gpuobj_free *fini = data;
449	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
450	struct nouveau_abi16_chan chan, temp;
451	struct nouveau_abi16_ntfy *ntfy;
452	int ret;
453
454	if (unlikely(!abi16))
455	return -ENOMEM;
456
457	list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
458	if (chan->chan->handle == (NVDRM_CHAN \| fini->channel))
459	break;
460	chan = NULL;
461	}
462
463	if (!chan)
464	return nouveau_abi16_put(abi16, -ENOENT);
465
466	/* synchronize with the user channel and destroy the gpu object */
467	nouveau_channel_idle(chan->chan);
468
469	ret = nouveau_object_del(abi16->client, chan->chan->handle, fini->handle);
470	if (ret)
471	return nouveau_abi16_put(abi16, ret);
472
473	/* cleanup extra state if this object was a notifier */
474	list_for_each_entry(ntfy, &chan->notifiers, head) {
475	if (ntfy->handle == fini->handle) {
476	nouveau_mm_free(&chan->heap, &ntfy->node);
477	list_del(&ntfy->head);
478	break;
479	}
480	}
481
482	return nouveau_abi16_put(abi16, 0);
483	}