WebSVN – Kolibri OS – Blame – /drivers/video/drm/i915/i915_dma.c

Rev	Author	Line No.	Line
2326	Serge	1	/* i915_dma.c -- DMA support for the I915 -- linux-c --
		2	*/
		3	/*
		4	* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
		5	* All Rights Reserved.
		6	*
		7	* Permission is hereby granted, free of charge, to any person obtaining a
		8	* copy of this software and associated documentation files (the
		9	* "Software"), to deal in the Software without restriction, including
		10	* without limitation the rights to use, copy, modify, merge, publish,
		11	* distribute, sub license, and/or sell copies of the Software, and to
		12	* permit persons to whom the Software is furnished to do so, subject to
		13	* the following conditions:
		14	*
		15	* The above copyright notice and this permission notice (including the
		16	* next paragraph) shall be included in all copies or substantial portions
		17	* of the Software.
		18	*
		19	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
		20	* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
		21	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
		22	* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
		23	* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
		24	* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
		25	* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
		26	*
		27	*/
		28
3031	serge	29	#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
		30
		31	#include
		32	#include
		33	#include
2326	Serge	34	#include "intel_drv.h"
3031	serge	35	#include
2326	Serge	36	#include "i915_drv.h"
2351	Serge	37	#include "i915_trace.h"
2326	Serge	38	#include
		39	//#include
		40	//#include
		41	//#include
		42	//#include
2330	Serge	43	#include
2326	Serge	44	//#include
		45
		46	void __iomem pci_iomap(struct pci_dev dev, int bar, unsigned long maxlen);
		47
3031	serge	48
		49	#define LP_RING(d) (&((struct drm_i915_private *)(d))->ring[RCS])
		50
		51	#define BEGIN_LP_RING(n) \
		52	intel_ring_begin(LP_RING(dev_priv), (n))
		53
		54	#define OUT_RING(x) \
		55	intel_ring_emit(LP_RING(dev_priv), x)
		56
		57	#define ADVANCE_LP_RING() \
		58	intel_ring_advance(LP_RING(dev_priv))
		59
		60	/**
		61	* Lock test for when it's just for synchronization of ring access.
		62	*
		63	* In that case, we don't need to do it when GEM is initialized as nobody else
		64	* has access to the ring.
		65	*/
		66	#define RING_LOCK_TEST_WITH_RETURN(dev, file) do { \
		67	if (LP_RING(dev->dev_private)->obj == NULL) \
		68	LOCK_TEST_WITH_RETURN(dev, file); \
		69	} while (0)
		70
		71	static inline u32
		72	intel_read_legacy_status_page(struct drm_i915_private *dev_priv, int reg)
2330	Serge	73	{
3031	serge	74	if (I915_NEED_GFX_HWS(dev_priv->dev))
		75	return ioread32(dev_priv->dri1.gfx_hws_cpu_addr + reg);
		76	else
		77	return intel_read_status_page(LP_RING(dev_priv), reg);
2330	Serge	78	}
		79
3031	serge	80	#define READ_HWSP(dev_priv, reg) intel_read_legacy_status_page(dev_priv, reg)
		81	#define READ_BREADCRUMB(dev_priv) READ_HWSP(dev_priv, I915_BREADCRUMB_INDEX)
		82	#define I915_BREADCRUMB_INDEX 0x21
2330	Serge	83
3031	serge	84	void i915_update_dri1_breadcrumb(struct drm_device *dev)
		85	{
		86	drm_i915_private_t *dev_priv = dev->dev_private;
		87	struct drm_i915_master_private *master_priv;
2330	Serge	88
3031	serge	89	if (dev->primary->master) {
		90	master_priv = dev->primary->master->driver_priv;
		91	if (master_priv->sarea_priv)
		92	master_priv->sarea_priv->last_dispatch =
		93	READ_BREADCRUMB(dev_priv);
		94	}
		95	}
		96
2326	Serge	97	static void i915_write_hws_pga(struct drm_device *dev)
		98	{
3031	serge	99	drm_i915_private_t *dev_priv = dev->dev_private;
		100	u32 addr;
2326	Serge	101
3031	serge	102	addr = dev_priv->status_page_dmah->busaddr;
		103	if (INTEL_INFO(dev)->gen >= 4)
		104	addr \|= (dev_priv->status_page_dmah->busaddr >> 28) & 0xf0;
		105	I915_WRITE(HWS_PGA, addr);
2326	Serge	106	}
		107
		108	/**
		109	* Sets up the hardware status page for devices that need a physical address
		110	* in the register.
		111	*/
		112	static int i915_init_phys_hws(struct drm_device *dev)
		113	{
3031	serge	114	drm_i915_private_t *dev_priv = dev->dev_private;
2326	Serge	115
3031	serge	116	/* Program Hardware Status Page */
		117	dev_priv->status_page_dmah =
		118	drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE);
2326	Serge	119
3031	serge	120	if (!dev_priv->status_page_dmah) {
		121	DRM_ERROR("Can not allocate hardware status page\n");
		122	return -ENOMEM;
		123	}
2326	Serge	124
3031	serge	125	memset((void __force __iomem *)dev_priv->status_page_dmah->vaddr,
		126	0, PAGE_SIZE);
2326	Serge	127
3031	serge	128	i915_write_hws_pga(dev);
		129
		130	DRM_DEBUG_DRIVER("Enabled hardware status page\n");
		131	return 0;
2326	Serge	132	}
		133
3031	serge	134	/**
		135	* Frees the hardware status page, whether it's a physical address or a virtual
		136	* address set up by the X Server.
		137	*/
		138	static void i915_free_hws(struct drm_device *dev)
		139	{
		140	drm_i915_private_t *dev_priv = dev->dev_private;
		141	struct intel_ring_buffer *ring = LP_RING(dev_priv);
2330	Serge	142
3031	serge	143	if (dev_priv->status_page_dmah) {
		144	drm_pci_free(dev, dev_priv->status_page_dmah);
		145	dev_priv->status_page_dmah = NULL;
		146	}
2330	Serge	147
3031	serge	148	if (ring->status_page.gfx_addr) {
		149	ring->status_page.gfx_addr = 0;
		150	iounmap(dev_priv->dri1.gfx_hws_cpu_addr);
		151	}
2330	Serge	152
3031	serge	153	/* Need to rewrite hardware status page */
		154	I915_WRITE(HWS_PGA, 0x1ffff000);
		155	}
2330	Serge	156
3031	serge	157	#if 0
2330	Serge	158
3031	serge	159	void i915_kernel_lost_context(struct drm_device * dev)
		160	{
		161	drm_i915_private_t *dev_priv = dev->dev_private;
		162	struct drm_i915_master_private *master_priv;
		163	struct intel_ring_buffer *ring = LP_RING(dev_priv);
2330	Serge	164
3031	serge	165	/*
		166	* We should never lose context on the ring with modesetting
		167	* as we don't expose it to userspace
		168	*/
		169	if (drm_core_check_feature(dev, DRIVER_MODESET))
		170	return;
2330	Serge	171
3031	serge	172	ring->head = I915_READ_HEAD(ring) & HEAD_ADDR;
		173	ring->tail = I915_READ_TAIL(ring) & TAIL_ADDR;
		174	ring->space = ring->head - (ring->tail + 8);
		175	if (ring->space < 0)
		176	ring->space += ring->size;
2330	Serge	177
3031	serge	178	if (!dev->primary->master)
		179	return;
2330	Serge	180
3031	serge	181	master_priv = dev->primary->master->driver_priv;
		182	if (ring->head == ring->tail && master_priv->sarea_priv)
		183	master_priv->sarea_priv->perf_boxes \|= I915_BOX_RING_EMPTY;
		184	}
		185
		186	static int i915_dma_cleanup(struct drm_device * dev)
		187	{
		188	drm_i915_private_t *dev_priv = dev->dev_private;
		189	int i;
		190
		191	/* Make sure interrupts are disabled here because the uninstall ioctl
		192	* may not have been called from userspace and after dev_private
		193	* is freed, it's too late.
		194	*/
		195	if (dev->irq_enabled)
		196	drm_irq_uninstall(dev);
		197
		198	mutex_lock(&dev->struct_mutex);
		199	for (i = 0; i < I915_NUM_RINGS; i++)
		200	intel_cleanup_ring_buffer(&dev_priv->ring[i]);
		201	mutex_unlock(&dev->struct_mutex);
		202
		203	/* Clear the HWS virtual address at teardown */
		204	if (I915_NEED_GFX_HWS(dev))
		205	i915_free_hws(dev);
		206
		207	return 0;
		208	}
		209
		210	static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init)
		211	{
		212	drm_i915_private_t *dev_priv = dev->dev_private;
		213	struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
		214	int ret;
		215
		216	master_priv->sarea = drm_getsarea(dev);
		217	if (master_priv->sarea) {
		218	master_priv->sarea_priv = (drm_i915_sarea_t *)
		219	((u8 *)master_priv->sarea->handle + init->sarea_priv_offset);
		220	} else {
		221	DRM_DEBUG_DRIVER("sarea not found assuming DRI2 userspace\n");
		222	}
		223
		224	if (init->ring_size != 0) {
		225	if (LP_RING(dev_priv)->obj != NULL) {
		226	i915_dma_cleanup(dev);
		227	DRM_ERROR("Client tried to initialize ringbuffer in "
		228	"GEM mode\n");
		229	return -EINVAL;
		230	}
		231
		232	ret = intel_render_ring_init_dri(dev,
		233	init->ring_start,
		234	init->ring_size);
		235	if (ret) {
		236	i915_dma_cleanup(dev);
		237	return ret;
		238	}
		239	}
		240
		241	dev_priv->dri1.cpp = init->cpp;
		242	dev_priv->dri1.back_offset = init->back_offset;
		243	dev_priv->dri1.front_offset = init->front_offset;
		244	dev_priv->dri1.current_page = 0;
		245	if (master_priv->sarea_priv)
		246	master_priv->sarea_priv->pf_current_page = 0;
		247
		248	/* Allow hardware batchbuffers unless told otherwise.
		249	*/
		250	dev_priv->dri1.allow_batchbuffer = 1;
		251
		252	return 0;
		253	}
		254
		255	static int i915_dma_resume(struct drm_device * dev)
		256	{
		257	drm_i915_private_t dev_priv = (drm_i915_private_t ) dev->dev_private;
		258	struct intel_ring_buffer *ring = LP_RING(dev_priv);
		259
		260	DRM_DEBUG_DRIVER("%s\n", __func__);
		261
		262	if (ring->virtual_start == NULL) {
		263	DRM_ERROR("can not ioremap virtual address for"
		264	" ring buffer\n");
		265	return -ENOMEM;
		266	}
		267
		268	/* Program Hardware Status Page */
		269	if (!ring->status_page.page_addr) {
		270	DRM_ERROR("Can not find hardware status page\n");
		271	return -EINVAL;
		272	}
		273	DRM_DEBUG_DRIVER("hw status page @ %p\n",
		274	ring->status_page.page_addr);
		275	if (ring->status_page.gfx_addr != 0)
		276	intel_ring_setup_status_page(ring);
		277	else
		278	i915_write_hws_pga(dev);
		279
		280	DRM_DEBUG_DRIVER("Enabled hardware status page\n");
		281
		282	return 0;
		283	}
		284
		285	static int i915_dma_init(struct drm_device dev, void data,
		286	struct drm_file *file_priv)
		287	{
		288	drm_i915_init_t *init = data;
		289	int retcode = 0;
		290
		291	if (drm_core_check_feature(dev, DRIVER_MODESET))
		292	return -ENODEV;
		293
		294	switch (init->func) {
		295	case I915_INIT_DMA:
		296	retcode = i915_initialize(dev, init);
		297	break;
		298	case I915_CLEANUP_DMA:
		299	retcode = i915_dma_cleanup(dev);
		300	break;
		301	case I915_RESUME_DMA:
		302	retcode = i915_dma_resume(dev);
		303	break;
		304	default:
		305	retcode = -EINVAL;
		306	break;
		307	}
		308
		309	return retcode;
		310	}
		311
		312	/* Implement basically the same security restrictions as hardware does
		313	* for MI_BATCH_NON_SECURE. These can be made stricter at any time.
		314	*
		315	* Most of the calculations below involve calculating the size of a
		316	* particular instruction. It's important to get the size right as
		317	* that tells us where the next instruction to check is. Any illegal
		318	* instruction detected will be given a size of zero, which is a
		319	* signal to abort the rest of the buffer.
		320	*/
		321	static int validate_cmd(int cmd)
		322	{
		323	switch (((cmd >> 29) & 0x7)) {
		324	case 0x0:
		325	switch ((cmd >> 23) & 0x3f) {
		326	case 0x0:
		327	return 1; /* MI_NOOP */
		328	case 0x4:
		329	return 1; /* MI_FLUSH */
		330	default:
		331	return 0; /* disallow everything else */
		332	}
		333	break;
		334	case 0x1:
		335	return 0; /* reserved */
		336	case 0x2:
		337	return (cmd & 0xff) + 2; /* 2d commands */
		338	case 0x3:
		339	if (((cmd >> 24) & 0x1f) <= 0x18)
		340	return 1;
		341
		342	switch ((cmd >> 24) & 0x1f) {
		343	case 0x1c:
		344	return 1;
		345	case 0x1d:
		346	switch ((cmd >> 16) & 0xff) {
		347	case 0x3:
		348	return (cmd & 0x1f) + 2;
		349	case 0x4:
		350	return (cmd & 0xf) + 2;
		351	default:
		352	return (cmd & 0xffff) + 2;
		353	}
		354	case 0x1e:
		355	if (cmd & (1 << 23))
		356	return (cmd & 0xffff) + 1;
		357	else
		358	return 1;
		359	case 0x1f:
		360	if ((cmd & (1 << 23)) == 0) /* inline vertices */
		361	return (cmd & 0x1ffff) + 2;
		362	else if (cmd & (1 << 17)) /* indirect random */
		363	if ((cmd & 0xffff) == 0)
		364	return 0; /* unknown length, too hard */
		365	else
		366	return (((cmd & 0xffff) + 1) / 2) + 1;
		367	else
		368	return 2; /* indirect sequential */
		369	default:
		370	return 0;
		371	}
		372	default:
		373	return 0;
		374	}
		375
		376	return 0;
		377	}
		378
		379	static int i915_emit_cmds(struct drm_device * dev, int *buffer, int dwords)
		380	{
		381	drm_i915_private_t *dev_priv = dev->dev_private;
		382	int i, ret;
		383
		384	if ((dwords+1) * sizeof(int) >= LP_RING(dev_priv)->size - 8)
		385	return -EINVAL;
		386
		387	for (i = 0; i < dwords;) {
		388	int sz = validate_cmd(buffer[i]);
		389	if (sz == 0 \|\| i + sz > dwords)
		390	return -EINVAL;
		391	i += sz;
		392	}
		393
		394	ret = BEGIN_LP_RING((dwords+1)&~1);
		395	if (ret)
		396	return ret;
		397
		398	for (i = 0; i < dwords; i++)
		399	OUT_RING(buffer[i]);
		400	if (dwords & 1)
		401	OUT_RING(0);
		402
		403	ADVANCE_LP_RING();
		404
		405	return 0;
		406	}
		407
		408	int
		409	i915_emit_box(struct drm_device *dev,
		410	struct drm_clip_rect *box,
		411	int DR1, int DR4)
		412	{
		413	struct drm_i915_private *dev_priv = dev->dev_private;
		414	int ret;
		415
		416	if (box->y2 <= box->y1 \|\| box->x2 <= box->x1 \|\|
		417	box->y2 <= 0 \|\| box->x2 <= 0) {
		418	DRM_ERROR("Bad box %d,%d..%d,%d\n",
		419	box->x1, box->y1, box->x2, box->y2);
		420	return -EINVAL;
		421	}
		422
		423	if (INTEL_INFO(dev)->gen >= 4) {
		424	ret = BEGIN_LP_RING(4);
		425	if (ret)
		426	return ret;
		427
		428	OUT_RING(GFX_OP_DRAWRECT_INFO_I965);
		429	OUT_RING((box->x1 & 0xffff) \| (box->y1 << 16));
		430	OUT_RING(((box->x2 - 1) & 0xffff) \| ((box->y2 - 1) << 16));
		431	OUT_RING(DR4);
		432	} else {
		433	ret = BEGIN_LP_RING(6);
		434	if (ret)
		435	return ret;
		436
		437	OUT_RING(GFX_OP_DRAWRECT_INFO);
		438	OUT_RING(DR1);
		439	OUT_RING((box->x1 & 0xffff) \| (box->y1 << 16));
		440	OUT_RING(((box->x2 - 1) & 0xffff) \| ((box->y2 - 1) << 16));
		441	OUT_RING(DR4);
		442	OUT_RING(0);
		443	}
		444	ADVANCE_LP_RING();
		445
		446	return 0;
		447	}
		448
		449	/* XXX: Emitting the counter should really be moved to part of the IRQ
		450	* emit. For now, do it in both places:
		451	*/
		452
		453	static void i915_emit_breadcrumb(struct drm_device *dev)
		454	{
		455	drm_i915_private_t *dev_priv = dev->dev_private;
		456	struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
		457
		458	dev_priv->counter++;
		459	if (dev_priv->counter > 0x7FFFFFFFUL)
		460	dev_priv->counter = 0;
		461	if (master_priv->sarea_priv)
		462	master_priv->sarea_priv->last_enqueue = dev_priv->counter;
		463
		464	if (BEGIN_LP_RING(4) == 0) {
		465	OUT_RING(MI_STORE_DWORD_INDEX);
		466	OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
		467	OUT_RING(dev_priv->counter);
		468	OUT_RING(0);
		469	ADVANCE_LP_RING();
		470	}
		471	}
		472
		473	static int i915_dispatch_cmdbuffer(struct drm_device * dev,
		474	drm_i915_cmdbuffer_t *cmd,
		475	struct drm_clip_rect *cliprects,
		476	void *cmdbuf)
		477	{
		478	int nbox = cmd->num_cliprects;
		479	int i = 0, count, ret;
		480
		481	if (cmd->sz & 0x3) {
		482	DRM_ERROR("alignment");
		483	return -EINVAL;
		484	}
		485
		486	i915_kernel_lost_context(dev);
		487
		488	count = nbox ? nbox : 1;
		489
		490	for (i = 0; i < count; i++) {
		491	if (i < nbox) {
		492	ret = i915_emit_box(dev, &cliprects[i],
		493	cmd->DR1, cmd->DR4);
		494	if (ret)
		495	return ret;
		496	}
		497
		498	ret = i915_emit_cmds(dev, cmdbuf, cmd->sz / 4);
		499	if (ret)
		500	return ret;
		501	}
		502
		503	i915_emit_breadcrumb(dev);
		504	return 0;
		505	}
		506
		507	static int i915_dispatch_batchbuffer(struct drm_device * dev,
		508	drm_i915_batchbuffer_t * batch,
		509	struct drm_clip_rect *cliprects)
		510	{
		511	struct drm_i915_private *dev_priv = dev->dev_private;
		512	int nbox = batch->num_cliprects;
		513	int i, count, ret;
		514
		515	if ((batch->start \| batch->used) & 0x7) {
		516	DRM_ERROR("alignment");
		517	return -EINVAL;
		518	}
		519
		520	i915_kernel_lost_context(dev);
		521
		522	count = nbox ? nbox : 1;
		523	for (i = 0; i < count; i++) {
		524	if (i < nbox) {
		525	ret = i915_emit_box(dev, &cliprects[i],
		526	batch->DR1, batch->DR4);
		527	if (ret)
		528	return ret;
		529	}
		530
		531	if (!IS_I830(dev) && !IS_845G(dev)) {
		532	ret = BEGIN_LP_RING(2);
		533	if (ret)
		534	return ret;
		535
		536	if (INTEL_INFO(dev)->gen >= 4) {
		537	OUT_RING(MI_BATCH_BUFFER_START \| (2 << 6) \| MI_BATCH_NON_SECURE_I965);
		538	OUT_RING(batch->start);
		539	} else {
		540	OUT_RING(MI_BATCH_BUFFER_START \| (2 << 6));
		541	OUT_RING(batch->start \| MI_BATCH_NON_SECURE);
		542	}
		543	} else {
		544	ret = BEGIN_LP_RING(4);
		545	if (ret)
		546	return ret;
		547
		548	OUT_RING(MI_BATCH_BUFFER);
		549	OUT_RING(batch->start \| MI_BATCH_NON_SECURE);
		550	OUT_RING(batch->start + batch->used - 4);
		551	OUT_RING(0);
		552	}
		553	ADVANCE_LP_RING();
		554	}
		555
		556
		557	if (IS_G4X(dev) \|\| IS_GEN5(dev)) {
		558	if (BEGIN_LP_RING(2) == 0) {
		559	OUT_RING(MI_FLUSH \| MI_NO_WRITE_FLUSH \| MI_INVALIDATE_ISP);
		560	OUT_RING(MI_NOOP);
		561	ADVANCE_LP_RING();
		562	}
		563	}
		564
		565	i915_emit_breadcrumb(dev);
		566	return 0;
		567	}
		568
		569	static int i915_dispatch_flip(struct drm_device * dev)
		570	{
		571	drm_i915_private_t *dev_priv = dev->dev_private;
		572	struct drm_i915_master_private *master_priv =
		573	dev->primary->master->driver_priv;
		574	int ret;
		575
		576	if (!master_priv->sarea_priv)
		577	return -EINVAL;
		578
		579	DRM_DEBUG_DRIVER("%s: page=%d pfCurrentPage=%d\n",
		580	__func__,
		581	dev_priv->dri1.current_page,
		582	master_priv->sarea_priv->pf_current_page);
		583
		584	i915_kernel_lost_context(dev);
		585
		586	ret = BEGIN_LP_RING(10);
		587	if (ret)
		588	return ret;
		589
		590	OUT_RING(MI_FLUSH \| MI_READ_FLUSH);
		591	OUT_RING(0);
		592
		593	OUT_RING(CMD_OP_DISPLAYBUFFER_INFO \| ASYNC_FLIP);
		594	OUT_RING(0);
		595	if (dev_priv->dri1.current_page == 0) {
		596	OUT_RING(dev_priv->dri1.back_offset);
		597	dev_priv->dri1.current_page = 1;
		598	} else {
		599	OUT_RING(dev_priv->dri1.front_offset);
		600	dev_priv->dri1.current_page = 0;
		601	}
		602	OUT_RING(0);
		603
		604	OUT_RING(MI_WAIT_FOR_EVENT \| MI_WAIT_FOR_PLANE_A_FLIP);
		605	OUT_RING(0);
		606
		607	ADVANCE_LP_RING();
		608
		609	master_priv->sarea_priv->last_enqueue = dev_priv->counter++;
		610
		611	if (BEGIN_LP_RING(4) == 0) {
		612	OUT_RING(MI_STORE_DWORD_INDEX);
		613	OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
		614	OUT_RING(dev_priv->counter);
		615	OUT_RING(0);
		616	ADVANCE_LP_RING();
		617	}
		618
		619	master_priv->sarea_priv->pf_current_page = dev_priv->dri1.current_page;
		620	return 0;
		621	}
		622
		623	static int i915_quiescent(struct drm_device *dev)
		624	{
		625	struct intel_ring_buffer *ring = LP_RING(dev->dev_private);
		626
		627	i915_kernel_lost_context(dev);
		628	return intel_wait_ring_idle(ring);
		629	}
		630
		631	static int i915_flush_ioctl(struct drm_device dev, void data,
		632	struct drm_file *file_priv)
		633	{
		634	int ret;
		635
		636	if (drm_core_check_feature(dev, DRIVER_MODESET))
		637	return -ENODEV;
		638
		639	RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
		640
		641	mutex_lock(&dev->struct_mutex);
		642	ret = i915_quiescent(dev);
		643	mutex_unlock(&dev->struct_mutex);
		644
		645	return ret;
		646	}
		647
		648	static int i915_batchbuffer(struct drm_device dev, void data,
		649	struct drm_file *file_priv)
		650	{
		651	drm_i915_private_t dev_priv = (drm_i915_private_t ) dev->dev_private;
		652	struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
		653	drm_i915_sarea_t sarea_priv = (drm_i915_sarea_t )
		654	master_priv->sarea_priv;
		655	drm_i915_batchbuffer_t *batch = data;
		656	int ret;
		657	struct drm_clip_rect *cliprects = NULL;
		658
		659	if (drm_core_check_feature(dev, DRIVER_MODESET))
		660	return -ENODEV;
		661
		662	if (!dev_priv->dri1.allow_batchbuffer) {
		663	DRM_ERROR("Batchbuffer ioctl disabled\n");
		664	return -EINVAL;
		665	}
		666
		667	DRM_DEBUG_DRIVER("i915 batchbuffer, start %x used %d cliprects %d\n",
		668	batch->start, batch->used, batch->num_cliprects);
		669
		670	RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
		671
		672	if (batch->num_cliprects < 0)
		673	return -EINVAL;
		674
		675	if (batch->num_cliprects) {
		676	cliprects = kcalloc(batch->num_cliprects,
		677	sizeof(struct drm_clip_rect),
		678	GFP_KERNEL);
		679	if (cliprects == NULL)
		680	return -ENOMEM;
		681
		682	ret = copy_from_user(cliprects, batch->cliprects,
		683	batch->num_cliprects *
		684	sizeof(struct drm_clip_rect));
		685	if (ret != 0) {
		686	ret = -EFAULT;
		687	goto fail_free;
		688	}
		689	}
		690
		691	mutex_lock(&dev->struct_mutex);
		692	ret = i915_dispatch_batchbuffer(dev, batch, cliprects);
		693	mutex_unlock(&dev->struct_mutex);
		694
		695	if (sarea_priv)
		696	sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
		697
		698	fail_free:
		699	kfree(cliprects);
		700
		701	return ret;
		702	}
		703
		704	static int i915_cmdbuffer(struct drm_device dev, void data,
		705	struct drm_file *file_priv)
		706	{
		707	drm_i915_private_t dev_priv = (drm_i915_private_t ) dev->dev_private;
		708	struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
		709	drm_i915_sarea_t sarea_priv = (drm_i915_sarea_t )
		710	master_priv->sarea_priv;
		711	drm_i915_cmdbuffer_t *cmdbuf = data;
		712	struct drm_clip_rect *cliprects = NULL;
		713	void *batch_data;
		714	int ret;
		715
		716	DRM_DEBUG_DRIVER("i915 cmdbuffer, buf %p sz %d cliprects %d\n",
		717	cmdbuf->buf, cmdbuf->sz, cmdbuf->num_cliprects);
		718
		719	if (drm_core_check_feature(dev, DRIVER_MODESET))
		720	return -ENODEV;
		721
		722	RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
		723
		724	if (cmdbuf->num_cliprects < 0)
		725	return -EINVAL;
		726
		727	batch_data = kmalloc(cmdbuf->sz, GFP_KERNEL);
		728	if (batch_data == NULL)
		729	return -ENOMEM;
		730
		731	ret = copy_from_user(batch_data, cmdbuf->buf, cmdbuf->sz);
		732	if (ret != 0) {
		733	ret = -EFAULT;
		734	goto fail_batch_free;
		735	}
		736
		737	if (cmdbuf->num_cliprects) {
		738	cliprects = kcalloc(cmdbuf->num_cliprects,
		739	sizeof(struct drm_clip_rect), GFP_KERNEL);
		740	if (cliprects == NULL) {
		741	ret = -ENOMEM;
		742	goto fail_batch_free;
		743	}
		744
		745	ret = copy_from_user(cliprects, cmdbuf->cliprects,
		746	cmdbuf->num_cliprects *
		747	sizeof(struct drm_clip_rect));
		748	if (ret != 0) {
		749	ret = -EFAULT;
		750	goto fail_clip_free;
		751	}
		752	}
		753
		754	mutex_lock(&dev->struct_mutex);
		755	ret = i915_dispatch_cmdbuffer(dev, cmdbuf, cliprects, batch_data);
		756	mutex_unlock(&dev->struct_mutex);
		757	if (ret) {
		758	DRM_ERROR("i915_dispatch_cmdbuffer failed\n");
		759	goto fail_clip_free;
		760	}
		761
		762	if (sarea_priv)
		763	sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
		764
		765	fail_clip_free:
		766	kfree(cliprects);
		767	fail_batch_free:
		768	kfree(batch_data);
		769
		770	return ret;
		771	}
		772
		773	static int i915_emit_irq(struct drm_device * dev)
		774	{
		775	drm_i915_private_t *dev_priv = dev->dev_private;
		776	struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
		777
		778	i915_kernel_lost_context(dev);
		779
		780	DRM_DEBUG_DRIVER("\n");
		781
		782	dev_priv->counter++;
		783	if (dev_priv->counter > 0x7FFFFFFFUL)
		784	dev_priv->counter = 1;
		785	if (master_priv->sarea_priv)
		786	master_priv->sarea_priv->last_enqueue = dev_priv->counter;
		787
		788	if (BEGIN_LP_RING(4) == 0) {
		789	OUT_RING(MI_STORE_DWORD_INDEX);
		790	OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
		791	OUT_RING(dev_priv->counter);
		792	OUT_RING(MI_USER_INTERRUPT);
		793	ADVANCE_LP_RING();
		794	}
		795
		796	return dev_priv->counter;
		797	}
		798
		799	static int i915_wait_irq(struct drm_device * dev, int irq_nr)
		800	{
		801	drm_i915_private_t dev_priv = (drm_i915_private_t ) dev->dev_private;
		802	struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
		803	int ret = 0;
		804	struct intel_ring_buffer *ring = LP_RING(dev_priv);
		805
		806	DRM_DEBUG_DRIVER("irq_nr=%d breadcrumb=%d\n", irq_nr,
		807	READ_BREADCRUMB(dev_priv));
		808
		809	if (READ_BREADCRUMB(dev_priv) >= irq_nr) {
		810	if (master_priv->sarea_priv)
		811	master_priv->sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
		812	return 0;
		813	}
		814
		815	if (master_priv->sarea_priv)
		816	master_priv->sarea_priv->perf_boxes \|= I915_BOX_WAIT;
		817
		818	if (ring->irq_get(ring)) {
		819	DRM_WAIT_ON(ret, ring->irq_queue, 3 * DRM_HZ,
		820	READ_BREADCRUMB(dev_priv) >= irq_nr);
		821	ring->irq_put(ring);
		822	} else if (wait_for(READ_BREADCRUMB(dev_priv) >= irq_nr, 3000))
		823	ret = -EBUSY;
		824
		825	if (ret == -EBUSY) {
		826	DRM_ERROR("EBUSY -- rec: %d emitted: %d\n",
		827	READ_BREADCRUMB(dev_priv), (int)dev_priv->counter);
		828	}
		829
		830	return ret;
		831	}
		832
		833	/* Needs the lock as it touches the ring.
		834	*/
		835	static int i915_irq_emit(struct drm_device dev, void data,
		836	struct drm_file *file_priv)
		837	{
		838	drm_i915_private_t *dev_priv = dev->dev_private;
		839	drm_i915_irq_emit_t *emit = data;
		840	int result;
		841
		842	if (drm_core_check_feature(dev, DRIVER_MODESET))
		843	return -ENODEV;
		844
		845	if (!dev_priv \|\| !LP_RING(dev_priv)->virtual_start) {
		846	DRM_ERROR("called with no initialization\n");
		847	return -EINVAL;
		848	}
		849
		850	RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
		851
		852	mutex_lock(&dev->struct_mutex);
		853	result = i915_emit_irq(dev);
		854	mutex_unlock(&dev->struct_mutex);
		855
		856	if (DRM_COPY_TO_USER(emit->irq_seq, &result, sizeof(int))) {
		857	DRM_ERROR("copy_to_user\n");
		858	return -EFAULT;
		859	}
		860
		861	return 0;
		862	}
		863
		864	/* Doesn't need the hardware lock.
		865	*/
		866	static int i915_irq_wait(struct drm_device dev, void data,
		867	struct drm_file *file_priv)
		868	{
		869	drm_i915_private_t *dev_priv = dev->dev_private;
		870	drm_i915_irq_wait_t *irqwait = data;
		871
		872	if (drm_core_check_feature(dev, DRIVER_MODESET))
		873	return -ENODEV;
		874
		875	if (!dev_priv) {
		876	DRM_ERROR("called with no initialization\n");
		877	return -EINVAL;
		878	}
		879
		880	return i915_wait_irq(dev, irqwait->irq_seq);
		881	}
		882
		883	static int i915_vblank_pipe_get(struct drm_device dev, void data,
		884	struct drm_file *file_priv)
		885	{
		886	drm_i915_private_t *dev_priv = dev->dev_private;
		887	drm_i915_vblank_pipe_t *pipe = data;
		888
		889	if (drm_core_check_feature(dev, DRIVER_MODESET))
		890	return -ENODEV;
		891
		892	if (!dev_priv) {
		893	DRM_ERROR("called with no initialization\n");
		894	return -EINVAL;
		895	}
		896
		897	pipe->pipe = DRM_I915_VBLANK_PIPE_A \| DRM_I915_VBLANK_PIPE_B;
		898
		899	return 0;
		900	}
		901
		902	/**
		903	* Schedule buffer swap at given vertical blank.
		904	*/
		905	static int i915_vblank_swap(struct drm_device dev, void data,
		906	struct drm_file *file_priv)
		907	{
		908	/* The delayed swap mechanism was fundamentally racy, and has been
		909	* removed. The model was that the client requested a delayed flip/swap
		910	* from the kernel, then waited for vblank before continuing to perform
		911	* rendering. The problem was that the kernel might wake the client
		912	* up before it dispatched the vblank swap (since the lock has to be
		913	* held while touching the ringbuffer), in which case the client would
		914	* clear and start the next frame before the swap occurred, and
		915	* flicker would occur in addition to likely missing the vblank.
		916	*
		917	* In the absence of this ioctl, userland falls back to a correct path
		918	* of waiting for a vblank, then dispatching the swap on its own.
		919	* Context switching to userland and back is plenty fast enough for
		920	* meeting the requirements of vblank swapping.
		921	*/
		922	return -EINVAL;
		923	}
		924
		925	static int i915_flip_bufs(struct drm_device dev, void data,
		926	struct drm_file *file_priv)
		927	{
		928	int ret;
		929
		930	if (drm_core_check_feature(dev, DRIVER_MODESET))
		931	return -ENODEV;
		932
		933	DRM_DEBUG_DRIVER("%s\n", __func__);
		934
		935	RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
		936
		937	mutex_lock(&dev->struct_mutex);
		938	ret = i915_dispatch_flip(dev);
		939	mutex_unlock(&dev->struct_mutex);
		940
		941	return ret;
		942	}
		943
		944	static int i915_getparam(struct drm_device dev, void data,
		945	struct drm_file *file_priv)
		946	{
		947	drm_i915_private_t *dev_priv = dev->dev_private;
		948	drm_i915_getparam_t *param = data;
		949	int value;
		950
		951	if (!dev_priv) {
		952	DRM_ERROR("called with no initialization\n");
		953	return -EINVAL;
		954	}
		955
		956	switch (param->param) {
		957	case I915_PARAM_IRQ_ACTIVE:
		958	value = dev->pdev->irq ? 1 : 0;
		959	break;
		960	case I915_PARAM_ALLOW_BATCHBUFFER:
		961	value = dev_priv->dri1.allow_batchbuffer ? 1 : 0;
		962	break;
		963	case I915_PARAM_LAST_DISPATCH:
		964	value = READ_BREADCRUMB(dev_priv);
		965	break;
		966	case I915_PARAM_CHIPSET_ID:
		967	value = dev->pci_device;
		968	break;
		969	case I915_PARAM_HAS_GEM:
		970	value = 1;
		971	break;
		972	case I915_PARAM_NUM_FENCES_AVAIL:
		973	value = dev_priv->num_fence_regs - dev_priv->fence_reg_start;
		974	break;
		975	case I915_PARAM_HAS_OVERLAY:
		976	value = dev_priv->overlay ? 1 : 0;
		977	break;
		978	case I915_PARAM_HAS_PAGEFLIPPING:
		979	value = 1;
		980	break;
		981	case I915_PARAM_HAS_EXECBUF2:
		982	/* depends on GEM */
		983	value = 1;
		984	break;
		985	case I915_PARAM_HAS_BSD:
		986	value = intel_ring_initialized(&dev_priv->ring[VCS]);
		987	break;
		988	case I915_PARAM_HAS_BLT:
		989	value = intel_ring_initialized(&dev_priv->ring[BCS]);
		990	break;
		991	case I915_PARAM_HAS_RELAXED_FENCING:
		992	value = 1;
		993	break;
		994	case I915_PARAM_HAS_COHERENT_RINGS:
		995	value = 1;
		996	break;
		997	case I915_PARAM_HAS_EXEC_CONSTANTS:
		998	value = INTEL_INFO(dev)->gen >= 4;
		999	break;
		1000	case I915_PARAM_HAS_RELAXED_DELTA:
		1001	value = 1;
		1002	break;
		1003	case I915_PARAM_HAS_GEN7_SOL_RESET:
		1004	value = 1;
		1005	break;
		1006	case I915_PARAM_HAS_LLC:
		1007	value = HAS_LLC(dev);
		1008	break;
		1009	case I915_PARAM_HAS_ALIASING_PPGTT:
		1010	value = dev_priv->mm.aliasing_ppgtt ? 1 : 0;
		1011	break;
		1012	case I915_PARAM_HAS_WAIT_TIMEOUT:
		1013	value = 1;
		1014	break;
		1015	case I915_PARAM_HAS_SEMAPHORES:
		1016	value = i915_semaphore_is_enabled(dev);
		1017	break;
		1018	case I915_PARAM_HAS_PRIME_VMAP_FLUSH:
		1019	value = 1;
		1020	break;
		1021	default:
		1022	DRM_DEBUG_DRIVER("Unknown parameter %d\n",
		1023	param->param);
		1024	return -EINVAL;
		1025	}
		1026
		1027	if (DRM_COPY_TO_USER(param->value, &value, sizeof(int))) {
		1028	DRM_ERROR("DRM_COPY_TO_USER failed\n");
		1029	return -EFAULT;
		1030	}
		1031
		1032	return 0;
		1033	}
		1034
		1035	static int i915_setparam(struct drm_device dev, void data,
		1036	struct drm_file *file_priv)
		1037	{
		1038	drm_i915_private_t *dev_priv = dev->dev_private;
		1039	drm_i915_setparam_t *param = data;
		1040
		1041	if (!dev_priv) {
		1042	DRM_ERROR("called with no initialization\n");
		1043	return -EINVAL;
		1044	}
		1045
		1046	switch (param->param) {
		1047	case I915_SETPARAM_USE_MI_BATCHBUFFER_START:
		1048	break;
		1049	case I915_SETPARAM_TEX_LRU_LOG_GRANULARITY:
		1050	break;
		1051	case I915_SETPARAM_ALLOW_BATCHBUFFER:
		1052	dev_priv->dri1.allow_batchbuffer = param->value ? 1 : 0;
		1053	break;
		1054	case I915_SETPARAM_NUM_USED_FENCES:
		1055	if (param->value > dev_priv->num_fence_regs \|\|
		1056	param->value < 0)
		1057	return -EINVAL;
		1058	/* Userspace can use first N regs */
		1059	dev_priv->fence_reg_start = param->value;
		1060	break;
		1061	default:
		1062	DRM_DEBUG_DRIVER("unknown parameter %d\n",
		1063	param->param);
		1064	return -EINVAL;
		1065	}
		1066
		1067	return 0;
		1068	}
		1069	#endif
		1070
		1071
		1072	static int i915_set_status_page(struct drm_device dev, void data,
		1073	struct drm_file *file_priv)
		1074	{
		1075	drm_i915_private_t *dev_priv = dev->dev_private;
		1076	drm_i915_hws_addr_t *hws = data;
		1077	struct intel_ring_buffer *ring = LP_RING(dev_priv);
		1078
		1079	if (drm_core_check_feature(dev, DRIVER_MODESET))
		1080	return -ENODEV;
		1081
		1082	if (!I915_NEED_GFX_HWS(dev))
		1083	return -EINVAL;
		1084
		1085	if (!dev_priv) {
		1086	DRM_ERROR("called with no initialization\n");
		1087	return -EINVAL;
		1088	}
		1089
		1090	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
		1091	WARN(1, "tried to set status page when mode setting active\n");
		1092	return 0;
		1093	}
		1094
		1095	DRM_DEBUG_DRIVER("set status page addr 0x%08x\n", (u32)hws->addr);
		1096
		1097	ring->status_page.gfx_addr = hws->addr & (0x1ffff<<12);
		1098
		1099	dev_priv->dri1.gfx_hws_cpu_addr =
		1100	ioremap(dev_priv->mm.gtt_base_addr + hws->addr, 4096);
		1101	if (dev_priv->dri1.gfx_hws_cpu_addr == NULL) {
		1102	i915_dma_cleanup(dev);
		1103	ring->status_page.gfx_addr = 0;
		1104	DRM_ERROR("can not ioremap virtual address for"
		1105	" G33 hw status page\n");
		1106	return -ENOMEM;
		1107	}
		1108
		1109	memset(dev_priv->dri1.gfx_hws_cpu_addr, 0, PAGE_SIZE);
		1110	I915_WRITE(HWS_PGA, ring->status_page.gfx_addr);
		1111
		1112	DRM_DEBUG_DRIVER("load hws HWS_PGA with gfx mem 0x%x\n",
		1113	ring->status_page.gfx_addr);
		1114	DRM_DEBUG_DRIVER("load hws at %p\n",
		1115	ring->status_page.page_addr);
		1116	return 0;
		1117	}
		1118
		1119	static int i915_get_bridge_dev(struct drm_device *dev)
		1120	{
		1121	struct drm_i915_private *dev_priv = dev->dev_private;
		1122
		1123	dev_priv->bridge_dev = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
		1124	if (!dev_priv->bridge_dev) {
		1125	DRM_ERROR("bridge device not found\n");
		1126	return -1;
		1127	}
		1128	return 0;
		1129	}
		1130
2330	Serge	1131	#define MCHBAR_I915 0x44
		1132	#define MCHBAR_I965 0x48
		1133	#define MCHBAR_SIZE (4*4096)
		1134
		1135	#define DEVEN_REG 0x54
		1136	#define DEVEN_MCHBAR_EN (1 << 28)
		1137
		1138
		1139
		1140
		1141	/* Setup MCHBAR if possible, return true if we should disable it again */
		1142	static void
		1143	intel_setup_mchbar(struct drm_device *dev)
		1144	{
		1145	drm_i915_private_t *dev_priv = dev->dev_private;
		1146	int mchbar_reg = INTEL_INFO(dev)->gen >= 4 ? MCHBAR_I965 : MCHBAR_I915;
		1147	u32 temp;
		1148	bool enabled;
		1149
		1150	dev_priv->mchbar_need_disable = false;
		1151
		1152	if (IS_I915G(dev) \|\| IS_I915GM(dev)) {
		1153	pci_read_config_dword(dev_priv->bridge_dev, DEVEN_REG, &temp);
		1154	enabled = !!(temp & DEVEN_MCHBAR_EN);
		1155	} else {
		1156	pci_read_config_dword(dev_priv->bridge_dev, mchbar_reg, &temp);
		1157	enabled = temp & 1;
		1158	}
		1159
		1160	/* If it's already enabled, don't have to do anything */
		1161	if (enabled)
		1162	return;
		1163
		1164	dbgprintf("Epic fail\n");
		1165
		1166	#if 0
		1167	if (intel_alloc_mchbar_resource(dev))
		1168	return;
		1169
		1170	dev_priv->mchbar_need_disable = true;
		1171
		1172	/* Space is allocated or reserved, so enable it. */
		1173	if (IS_I915G(dev) \|\| IS_I915GM(dev)) {
		1174	pci_write_config_dword(dev_priv->bridge_dev, DEVEN_REG,
		1175	temp \| DEVEN_MCHBAR_EN);
		1176	} else {
		1177	pci_read_config_dword(dev_priv->bridge_dev, mchbar_reg, &temp);
		1178	pci_write_config_dword(dev_priv->bridge_dev, mchbar_reg, temp \| 1);
		1179	}
		1180	#endif
		1181	}
		1182
		1183
3031	serge	1184	/* true = enable decode, false = disable decoder */
		1185	static unsigned int i915_vga_set_decode(void *cookie, bool state)
2330	Serge	1186	{
3031	serge	1187	struct drm_device *dev = cookie;
2330	Serge	1188
3031	serge	1189	intel_modeset_vga_set_state(dev, state);
		1190	if (state)
		1191	return VGA_RSRC_LEGACY_IO \| VGA_RSRC_LEGACY_MEM \|
		1192	VGA_RSRC_NORMAL_IO \| VGA_RSRC_NORMAL_MEM;
		1193	else
		1194	return VGA_RSRC_NORMAL_IO \| VGA_RSRC_NORMAL_MEM;
		1195	}
2330	Serge	1196
		1197
		1198
		1199
		1200
		1201
2327	Serge	1202	static int i915_load_modeset_init(struct drm_device *dev)
		1203	{
		1204	struct drm_i915_private *dev_priv = dev->dev_private;
		1205	int ret;
		1206
		1207	ret = intel_parse_bios(dev);
		1208	if (ret)
		1209	DRM_INFO("failed to find VBIOS tables\n");
		1210
		1211	// intel_register_dsm_handler();
		1212
3031	serge	1213	/* Initialise stolen first so that we may reserve preallocated
		1214	* objects for the BIOS to KMS transition.
		1215	*/
		1216	ret = i915_gem_init_stolen(dev);
		1217	if (ret)
		1218	goto cleanup_vga_switcheroo;
2327	Serge	1219
		1220	intel_modeset_init(dev);
		1221
3031	serge	1222	ret = i915_gem_init(dev);
2327	Serge	1223	if (ret)
3031	serge	1224	goto cleanup_gem_stolen;
2327	Serge	1225
		1226	intel_modeset_gem_init(dev);
		1227
2351	Serge	1228	ret = drm_irq_install(dev);
		1229	if (ret)
		1230	goto cleanup_gem;
2327	Serge	1231
		1232	/* Always safe in the mode setting case. */
		1233	/* FIXME: do pre/post-mode set stuff in core KMS code */
		1234	dev->vblank_disable_allowed = 1;
		1235
		1236	ret = intel_fbdev_init(dev);
		1237	if (ret)
		1238	goto cleanup_irq;
		1239
2332	Serge	1240	// drm_kms_helper_poll_init(dev);
2327	Serge	1241
		1242	/* We're off and running w/KMS */
		1243	dev_priv->mm.suspended = 0;
		1244
		1245	return 0;
		1246
		1247	cleanup_irq:
		1248	// drm_irq_uninstall(dev);
		1249	cleanup_gem:
		1250	// mutex_lock(&dev->struct_mutex);
		1251	// i915_gem_cleanup_ringbuffer(dev);
		1252	// mutex_unlock(&dev->struct_mutex);
3031	serge	1253	// i915_gem_cleanup_aliasing_ppgtt(dev);
		1254	cleanup_gem_stolen:
		1255	// i915_gem_cleanup_stolen(dev);
2327	Serge	1256	cleanup_vga_switcheroo:
		1257	// vga_switcheroo_unregister_client(dev->pdev);
		1258	cleanup_vga_client:
		1259	// vga_client_register(dev->pdev, NULL, NULL, NULL);
		1260	out:
		1261	return ret;
		1262	}
		1263
		1264
		1265
2326	Serge	1266
3031	serge	1267	static void i915_dump_device_info(struct drm_i915_private *dev_priv)
2326	Serge	1268	{
3031	serge	1269	const struct intel_device_info *info = dev_priv->info;
2326	Serge	1270
3031	serge	1271	#define DEV_INFO_FLAG(name) info->name ? #name "," : ""
		1272	#define DEV_INFO_SEP ,
		1273	DRM_DEBUG_DRIVER("i915 device info: gen=%i, pciid=0x%04x flags="
		1274	"%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
		1275	info->gen,
		1276	dev_priv->dev->pdev->device,
		1277	DEV_INFO_FLAGS);
		1278	#undef DEV_INFO_FLAG
		1279	#undef DEV_INFO_SEP
2326	Serge	1280	}
		1281
		1282	/**
		1283	* i915_driver_load - setup chip and create an initial config
		1284	* @dev: DRM device
		1285	* @flags: startup flags
		1286	*
		1287	* The driver load routine has to do several things:
		1288	* - drive output discovery via intel_modeset_init()
		1289	* - initialize the memory manager
		1290	* - allocate initial config memory
		1291	* - setup the DRM framebuffer with the allocated memory
		1292	*/
		1293	int i915_driver_load(struct drm_device *dev, unsigned long flags)
		1294	{
		1295	struct drm_i915_private *dev_priv;
3031	serge	1296	struct intel_device_info *info;
		1297	int ret = 0, mmio_bar, mmio_size;
		1298	uint32_t aperture_size;
2326	Serge	1299
3031	serge	1300	info = (struct intel_device_info *) flags;
		1301
		1302	#if 0
		1303	/* Refuse to load on gen6+ without kms enabled. */
		1304	if (info->gen >= 6 && !drm_core_check_feature(dev, DRIVER_MODESET))
		1305	return -ENODEV;
		1306
		1307	/* i915 has 4 more counters */
		1308	dev->counters += 4;
		1309	dev->types[6] = _DRM_STAT_IRQ;
		1310	dev->types[7] = _DRM_STAT_PRIMARY;
		1311	dev->types[8] = _DRM_STAT_SECONDARY;
		1312	dev->types[9] = _DRM_STAT_DMA;
		1313	#endif
		1314
2326	Serge	1315	dev_priv = kzalloc(sizeof(drm_i915_private_t), GFP_KERNEL);
		1316	if (dev_priv == NULL)
		1317	return -ENOMEM;
		1318
		1319	dev->dev_private = (void *)dev_priv;
		1320	dev_priv->dev = dev;
3031	serge	1321	dev_priv->info = info;
2326	Serge	1322
3031	serge	1323	i915_dump_device_info(dev_priv);
		1324
2326	Serge	1325	if (i915_get_bridge_dev(dev)) {
		1326	ret = -EIO;
		1327	goto free_priv;
		1328	}
		1329
3031	serge	1330	ret = intel_gmch_probe(dev_priv->bridge_dev, dev->pdev, NULL);
		1331	if (!ret) {
		1332	DRM_ERROR("failed to set up gmch\n");
		1333	ret = -EIO;
		1334	goto put_bridge;
		1335	}
		1336
		1337	dev_priv->mm.gtt = intel_gtt_get();
		1338	if (!dev_priv->mm.gtt) {
		1339	DRM_ERROR("Failed to initialize GTT\n");
		1340	ret = -ENODEV;
		1341	goto put_gmch;
		1342	}
		1343
		1344
		1345	pci_set_master(dev->pdev);
		1346
2326	Serge	1347	/* overlay on gen2 is broken and can't address above 1G */
		1348	// if (IS_GEN2(dev))
		1349	// dma_set_coherent_mask(&dev->pdev->dev, DMA_BIT_MASK(30));
		1350
		1351	/* 965GM sometimes incorrectly writes to hardware status page (HWS)
		1352	* using 32bit addressing, overwriting memory if HWS is located
		1353	* above 4GB.
		1354	*
		1355	* The documentation also mentions an issue with undefined
		1356	* behaviour if any general state is accessed within a page above 4GB,
		1357	* which also needs to be handled carefully.
		1358	*/
		1359	// if (IS_BROADWATER(dev) \|\| IS_CRESTLINE(dev))
		1360	// dma_set_coherent_mask(&dev->pdev->dev, DMA_BIT_MASK(32));
		1361
		1362	mmio_bar = IS_GEN2(dev) ? 1 : 0;
3031	serge	1363	/* Before gen4, the registers and the GTT are behind different BARs.
		1364	* However, from gen4 onwards, the registers and the GTT are shared
		1365	* in the same BAR, so we want to restrict this ioremap from
		1366	* clobbering the GTT which we want ioremap_wc instead. Fortunately,
		1367	* the register BAR remains the same size for all the earlier
		1368	* generations up to Ironlake.
		1369	*/
		1370	if (info->gen < 5)
		1371	mmio_size = 512*1024;
		1372	else
		1373	mmio_size = 210241024;
		1374
		1375	dev_priv->regs = pci_iomap(dev->pdev, mmio_bar, mmio_size);
2326	Serge	1376	if (!dev_priv->regs) {
		1377	DRM_ERROR("failed to map registers\n");
		1378	ret = -EIO;
3031	serge	1379	goto put_gmch;
2326	Serge	1380	}
		1381
3031	serge	1382	aperture_size = dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
		1383	dev_priv->mm.gtt_base_addr = dev_priv->mm.gtt->gma_bus_addr;
2326	Serge	1384
3037	serge	1385	DRM_INFO("gtt_base_addr %x aperture_size %d\n",
3031	serge	1386	dev_priv->mm.gtt_base_addr, aperture_size );
2326	Serge	1387
3031	serge	1388	// i915_mtrr_setup(dev_priv, dev_priv->mm.gtt_base_addr,
		1389	// aperture_size);
2326	Serge	1390
		1391	/* The i915 workqueue is primarily used for batched retirement of
		1392	* requests (and thus managing bo) once the task has been completed
		1393	* by the GPU. i915_gem_retire_requests() is called directly when we
		1394	* need high-priority retirement, such as waiting for an explicit
		1395	* bo.
		1396	*
		1397	* It is also used for periodic low-priority events, such as
		1398	* idle-timers and recording error state.
		1399	*
		1400	* All tasks on the workqueue are expected to acquire the dev mutex
		1401	* so there is no point in running more than one instance of the
3031	serge	1402	* workqueue at any time. Use an ordered one.
2326	Serge	1403	*/
3031	serge	1404	dev_priv->wq = alloc_ordered_workqueue("i915", 0);
2360	Serge	1405	if (dev_priv->wq == NULL) {
		1406	DRM_ERROR("Failed to create our workqueue.\n");
		1407	ret = -ENOMEM;
		1408	goto out_mtrrfree;
		1409	}
2326	Serge	1410
3031	serge	1411	/* This must be called before any calls to HAS_PCH_* */
		1412	intel_detect_pch(dev);
2326	Serge	1413
2351	Serge	1414	intel_irq_init(dev);
3031	serge	1415	intel_gt_init(dev);
2326	Serge	1416
		1417	/* Try to make sure MCHBAR is enabled before poking at it */
2330	Serge	1418	intel_setup_mchbar(dev);
2326	Serge	1419	intel_setup_gmbus(dev);
2327	Serge	1420	intel_opregion_setup(dev);
2326	Serge	1421
		1422	/* Make sure the bios did its job and set up vital registers */
2330	Serge	1423	intel_setup_bios(dev);
2326	Serge	1424
		1425	i915_gem_load(dev);
		1426
		1427	/* Init HWS */
		1428	if (!I915_NEED_GFX_HWS(dev)) {
		1429	ret = i915_init_phys_hws(dev);
		1430	if (ret)
		1431	goto out_gem_unload;
		1432	}
		1433
		1434	/* On the 945G/GM, the chipset reports the MSI capability on the
		1435	* integrated graphics even though the support isn't actually there
		1436	* according to the published specs. It doesn't appear to function
		1437	* correctly in testing on 945G.
		1438	* This may be a side effect of MSI having been made available for PEG
		1439	* and the registers being closely associated.
		1440	*
		1441	* According to chipset errata, on the 965GM, MSI interrupts may
		1442	* be lost or delayed, but we use them anyways to avoid
		1443	* stuck interrupts on some machines.
		1444	*/
		1445
		1446	spin_lock_init(&dev_priv->irq_lock);
		1447	spin_lock_init(&dev_priv->error_lock);
3031	serge	1448	spin_lock_init(&dev_priv->rps.lock);
		1449	spin_lock_init(&dev_priv->dpio_lock);
2326	Serge	1450
3031	serge	1451	if (IS_IVYBRIDGE(dev) \|\| IS_HASWELL(dev))
2342	Serge	1452	dev_priv->num_pipe = 3;
		1453	else if (IS_MOBILE(dev) \|\| !IS_GEN2(dev))
2326	Serge	1454	dev_priv->num_pipe = 2;
		1455	else
		1456	dev_priv->num_pipe = 1;
		1457
		1458	// ret = drm_vblank_init(dev, dev_priv->num_pipe);
		1459	// if (ret)
		1460	// goto out_gem_unload;
		1461
		1462	/* Start out suspended */
		1463	dev_priv->mm.suspended = 1;
		1464
2327	Serge	1465	ret = i915_load_modeset_init(dev);
		1466	if (ret < 0) {
		1467	DRM_ERROR("failed to init modeset\n");
		1468	goto out_gem_unload;
		1469	}
2326	Serge	1470
		1471	/* Must be done after probing outputs */
		1472	// intel_opregion_init(dev);
		1473	// acpi_video_register();
		1474
		1475	// setup_timer(&dev_priv->hangcheck_timer, i915_hangcheck_elapsed,
		1476	// (unsigned long) dev);
		1477
		1478
3031	serge	1479	if (IS_GEN5(dev))
		1480	intel_gpu_ips_init(dev_priv);
2326	Serge	1481
		1482	return 0;
		1483
		1484	out_gem_unload:
		1485	// if (dev_priv->mm.inactive_shrinker.shrink)
		1486	// unregister_shrinker(&dev_priv->mm.inactive_shrinker);
		1487
		1488	// if (dev->pdev->msi_enabled)
		1489	// pci_disable_msi(dev->pdev);
		1490
		1491	// intel_teardown_gmbus(dev);
		1492	// intel_teardown_mchbar(dev);
		1493	// destroy_workqueue(dev_priv->wq);
		1494	out_mtrrfree:
3031	serge	1495	// if (dev_priv->mm.gtt_mtrr >= 0) {
		1496	// mtrr_del(dev_priv->mm.gtt_mtrr,
		1497	// dev_priv->mm.gtt_base_addr,
		1498	// aperture_size);
		1499	// dev_priv->mm.gtt_mtrr = -1;
		1500	// }
		1501	// io_mapping_free(dev_priv->mm.gtt_mapping);
2326	Serge	1502	out_rmmap:
		1503	pci_iounmap(dev->pdev, dev_priv->regs);
3031	serge	1504	put_gmch:
		1505	// intel_gmch_remove();
2326	Serge	1506	put_bridge:
		1507	// pci_dev_put(dev_priv->bridge_dev);
		1508	free_priv:
		1509	kfree(dev_priv);
		1510	return ret;
		1511	}
		1512
3031	serge	1513	#if 0
		1514
		1515	int i915_driver_unload(struct drm_device *dev)
		1516	{
		1517	struct drm_i915_private *dev_priv = dev->dev_private;
		1518	int ret;
		1519
		1520	intel_gpu_ips_teardown();
		1521
		1522	i915_teardown_sysfs(dev);
		1523
		1524	if (dev_priv->mm.inactive_shrinker.shrink)
		1525	unregister_shrinker(&dev_priv->mm.inactive_shrinker);
		1526
		1527	mutex_lock(&dev->struct_mutex);
		1528	ret = i915_gpu_idle(dev);
		1529	if (ret)
		1530	DRM_ERROR("failed to idle hardware: %d\n", ret);
		1531	i915_gem_retire_requests(dev);
		1532	mutex_unlock(&dev->struct_mutex);
		1533
		1534	/* Cancel the retire work handler, which should be idle now. */
		1535	cancel_delayed_work_sync(&dev_priv->mm.retire_work);
		1536
		1537	io_mapping_free(dev_priv->mm.gtt_mapping);
		1538	if (dev_priv->mm.gtt_mtrr >= 0) {
		1539	mtrr_del(dev_priv->mm.gtt_mtrr,
		1540	dev_priv->mm.gtt_base_addr,
		1541	dev_priv->mm.gtt->gtt_mappable_entries * PAGE_SIZE);
		1542	dev_priv->mm.gtt_mtrr = -1;
		1543	}
		1544
		1545	acpi_video_unregister();
		1546
		1547	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
		1548	intel_fbdev_fini(dev);
		1549	intel_modeset_cleanup(dev);
		1550
		1551	/*
		1552	* free the memory space allocated for the child device
		1553	* config parsed from VBT
		1554	*/
		1555	if (dev_priv->child_dev && dev_priv->child_dev_num) {
		1556	kfree(dev_priv->child_dev);
		1557	dev_priv->child_dev = NULL;
		1558	dev_priv->child_dev_num = 0;
		1559	}
		1560
		1561	vga_switcheroo_unregister_client(dev->pdev);
		1562	vga_client_register(dev->pdev, NULL, NULL, NULL);
		1563	}
		1564
		1565	/* Free error state after interrupts are fully disabled. */
		1566	del_timer_sync(&dev_priv->hangcheck_timer);
		1567	cancel_work_sync(&dev_priv->error_work);
		1568	i915_destroy_error_state(dev);
		1569
		1570	if (dev->pdev->msi_enabled)
		1571	pci_disable_msi(dev->pdev);
		1572
		1573	intel_opregion_fini(dev);
		1574
		1575	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
		1576	/* Flush any outstanding unpin_work. */
		1577	flush_workqueue(dev_priv->wq);
		1578
		1579	mutex_lock(&dev->struct_mutex);
		1580	i915_gem_free_all_phys_object(dev);
		1581	i915_gem_cleanup_ringbuffer(dev);
		1582	i915_gem_context_fini(dev);
		1583	mutex_unlock(&dev->struct_mutex);
		1584	i915_gem_cleanup_aliasing_ppgtt(dev);
		1585	i915_gem_cleanup_stolen(dev);
		1586	drm_mm_takedown(&dev_priv->mm.stolen);
		1587
		1588	intel_cleanup_overlay(dev);
		1589
		1590	if (!I915_NEED_GFX_HWS(dev))
		1591	i915_free_hws(dev);
		1592	}
		1593
		1594	if (dev_priv->regs != NULL)
		1595	pci_iounmap(dev->pdev, dev_priv->regs);
		1596
		1597	intel_teardown_gmbus(dev);
		1598	intel_teardown_mchbar(dev);
		1599
		1600	destroy_workqueue(dev_priv->wq);
		1601
		1602	pci_dev_put(dev_priv->bridge_dev);
		1603	kfree(dev->dev_private);
		1604
		1605	return 0;
		1606	}
		1607
		1608	int i915_driver_open(struct drm_device dev, struct drm_file file)
		1609	{
		1610	struct drm_i915_file_private *file_priv;
		1611
		1612	DRM_DEBUG_DRIVER("\n");
		1613	file_priv = kmalloc(sizeof(*file_priv), GFP_KERNEL);
		1614	if (!file_priv)
		1615	return -ENOMEM;
		1616
		1617	file->driver_priv = file_priv;
		1618
		1619	spin_lock_init(&file_priv->mm.lock);
		1620	INIT_LIST_HEAD(&file_priv->mm.request_list);
		1621
		1622	idr_init(&file_priv->context_idr);
		1623
		1624	return 0;
		1625	}
		1626
		1627	/**
		1628	* i915_driver_lastclose - clean up after all DRM clients have exited
		1629	* @dev: DRM device
		1630	*
		1631	* Take care of cleaning up after all DRM clients have exited. In the
		1632	* mode setting case, we want to restore the kernel's initial mode (just
		1633	* in case the last client left us in a bad state).
		1634	*
		1635	* Additionally, in the non-mode setting case, we'll tear down the GTT
		1636	* and DMA structures, since the kernel won't be using them, and clea
		1637	* up any GEM state.
		1638	*/
		1639	void i915_driver_lastclose(struct drm_device * dev)
		1640	{
		1641	drm_i915_private_t *dev_priv = dev->dev_private;
		1642
		1643	/* On gen6+ we refuse to init without kms enabled, but then the drm core
		1644	* goes right around and calls lastclose. Check for this and don't clean
		1645	* up anything. */
		1646	if (!dev_priv)
		1647	return;
		1648
		1649	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
		1650	intel_fb_restore_mode(dev);
		1651	vga_switcheroo_process_delayed_switch();
		1652	return;
		1653	}
		1654
		1655	i915_gem_lastclose(dev);
		1656
		1657	i915_dma_cleanup(dev);
		1658	}
		1659
		1660	void i915_driver_preclose(struct drm_device * dev, struct drm_file *file_priv)
		1661	{
		1662	i915_gem_context_close(dev, file_priv);
		1663	i915_gem_release(dev, file_priv);
		1664	}
		1665
		1666	void i915_driver_postclose(struct drm_device dev, struct drm_file file)
		1667	{
		1668	struct drm_i915_file_private *file_priv = file->driver_priv;
		1669
		1670	kfree(file_priv);
		1671	}
		1672
		1673	struct drm_ioctl_desc i915_ioctls[] = {
		1674	DRM_IOCTL_DEF_DRV(I915_INIT, i915_dma_init, DRM_AUTH\|DRM_MASTER\|DRM_ROOT_ONLY),
		1675	DRM_IOCTL_DEF_DRV(I915_FLUSH, i915_flush_ioctl, DRM_AUTH),
		1676	DRM_IOCTL_DEF_DRV(I915_FLIP, i915_flip_bufs, DRM_AUTH),
		1677	DRM_IOCTL_DEF_DRV(I915_BATCHBUFFER, i915_batchbuffer, DRM_AUTH),
		1678	DRM_IOCTL_DEF_DRV(I915_IRQ_EMIT, i915_irq_emit, DRM_AUTH),
		1679	DRM_IOCTL_DEF_DRV(I915_IRQ_WAIT, i915_irq_wait, DRM_AUTH),
		1680	DRM_IOCTL_DEF_DRV(I915_GETPARAM, i915_getparam, DRM_AUTH),
		1681	DRM_IOCTL_DEF_DRV(I915_SETPARAM, i915_setparam, DRM_AUTH\|DRM_MASTER\|DRM_ROOT_ONLY),
		1682	DRM_IOCTL_DEF_DRV(I915_ALLOC, drm_noop, DRM_AUTH),
		1683	DRM_IOCTL_DEF_DRV(I915_FREE, drm_noop, DRM_AUTH),
		1684	DRM_IOCTL_DEF_DRV(I915_INIT_HEAP, drm_noop, DRM_AUTH\|DRM_MASTER\|DRM_ROOT_ONLY),
		1685	DRM_IOCTL_DEF_DRV(I915_CMDBUFFER, i915_cmdbuffer, DRM_AUTH),
		1686	DRM_IOCTL_DEF_DRV(I915_DESTROY_HEAP, drm_noop, DRM_AUTH\|DRM_MASTER\|DRM_ROOT_ONLY),
		1687	DRM_IOCTL_DEF_DRV(I915_SET_VBLANK_PIPE, drm_noop, DRM_AUTH\|DRM_MASTER\|DRM_ROOT_ONLY),
		1688	DRM_IOCTL_DEF_DRV(I915_GET_VBLANK_PIPE, i915_vblank_pipe_get, DRM_AUTH),
		1689	DRM_IOCTL_DEF_DRV(I915_VBLANK_SWAP, i915_vblank_swap, DRM_AUTH),
		1690	DRM_IOCTL_DEF_DRV(I915_HWS_ADDR, i915_set_status_page, DRM_AUTH\|DRM_MASTER\|DRM_ROOT_ONLY),
		1691	DRM_IOCTL_DEF_DRV(I915_GEM_INIT, i915_gem_init_ioctl, DRM_AUTH\|DRM_MASTER\|DRM_ROOT_ONLY\|DRM_UNLOCKED),
		1692	DRM_IOCTL_DEF_DRV(I915_GEM_EXECBUFFER, i915_gem_execbuffer, DRM_AUTH\|DRM_UNLOCKED),
		1693	DRM_IOCTL_DEF_DRV(I915_GEM_EXECBUFFER2, i915_gem_execbuffer2, DRM_AUTH\|DRM_UNLOCKED),
		1694	DRM_IOCTL_DEF_DRV(I915_GEM_PIN, i915_gem_pin_ioctl, DRM_AUTH\|DRM_ROOT_ONLY\|DRM_UNLOCKED),
		1695	DRM_IOCTL_DEF_DRV(I915_GEM_UNPIN, i915_gem_unpin_ioctl, DRM_AUTH\|DRM_ROOT_ONLY\|DRM_UNLOCKED),
		1696	DRM_IOCTL_DEF_DRV(I915_GEM_BUSY, i915_gem_busy_ioctl, DRM_AUTH\|DRM_UNLOCKED),
		1697	DRM_IOCTL_DEF_DRV(I915_GEM_SET_CACHING, i915_gem_set_caching_ioctl, DRM_UNLOCKED),
		1698	DRM_IOCTL_DEF_DRV(I915_GEM_GET_CACHING, i915_gem_get_caching_ioctl, DRM_UNLOCKED),
		1699	DRM_IOCTL_DEF_DRV(I915_GEM_THROTTLE, i915_gem_throttle_ioctl, DRM_AUTH\|DRM_UNLOCKED),
		1700	DRM_IOCTL_DEF_DRV(I915_GEM_ENTERVT, i915_gem_entervt_ioctl, DRM_AUTH\|DRM_MASTER\|DRM_ROOT_ONLY\|DRM_UNLOCKED),
		1701	DRM_IOCTL_DEF_DRV(I915_GEM_LEAVEVT, i915_gem_leavevt_ioctl, DRM_AUTH\|DRM_MASTER\|DRM_ROOT_ONLY\|DRM_UNLOCKED),
		1702	DRM_IOCTL_DEF_DRV(I915_GEM_CREATE, i915_gem_create_ioctl, DRM_UNLOCKED),
		1703	DRM_IOCTL_DEF_DRV(I915_GEM_PREAD, i915_gem_pread_ioctl, DRM_UNLOCKED),
		1704	DRM_IOCTL_DEF_DRV(I915_GEM_PWRITE, i915_gem_pwrite_ioctl, DRM_UNLOCKED),
		1705	DRM_IOCTL_DEF_DRV(I915_GEM_MMAP, i915_gem_mmap_ioctl, DRM_UNLOCKED),
		1706	DRM_IOCTL_DEF_DRV(I915_GEM_MMAP_GTT, i915_gem_mmap_gtt_ioctl, DRM_UNLOCKED),
		1707	DRM_IOCTL_DEF_DRV(I915_GEM_SET_DOMAIN, i915_gem_set_domain_ioctl, DRM_UNLOCKED),
		1708	DRM_IOCTL_DEF_DRV(I915_GEM_SW_FINISH, i915_gem_sw_finish_ioctl, DRM_UNLOCKED),
		1709	DRM_IOCTL_DEF_DRV(I915_GEM_SET_TILING, i915_gem_set_tiling, DRM_UNLOCKED),
		1710	DRM_IOCTL_DEF_DRV(I915_GEM_GET_TILING, i915_gem_get_tiling, DRM_UNLOCKED),
		1711	DRM_IOCTL_DEF_DRV(I915_GEM_GET_APERTURE, i915_gem_get_aperture_ioctl, DRM_UNLOCKED),
		1712	DRM_IOCTL_DEF_DRV(I915_GET_PIPE_FROM_CRTC_ID, intel_get_pipe_from_crtc_id, DRM_UNLOCKED),
		1713	DRM_IOCTL_DEF_DRV(I915_GEM_MADVISE, i915_gem_madvise_ioctl, DRM_UNLOCKED),
		1714	DRM_IOCTL_DEF_DRV(I915_OVERLAY_PUT_IMAGE, intel_overlay_put_image, DRM_MASTER\|DRM_CONTROL_ALLOW\|DRM_UNLOCKED),
		1715	DRM_IOCTL_DEF_DRV(I915_OVERLAY_ATTRS, intel_overlay_attrs, DRM_MASTER\|DRM_CONTROL_ALLOW\|DRM_UNLOCKED),
		1716	DRM_IOCTL_DEF_DRV(I915_SET_SPRITE_COLORKEY, intel_sprite_set_colorkey, DRM_MASTER\|DRM_CONTROL_ALLOW\|DRM_UNLOCKED),
		1717	DRM_IOCTL_DEF_DRV(I915_GET_SPRITE_COLORKEY, intel_sprite_get_colorkey, DRM_MASTER\|DRM_CONTROL_ALLOW\|DRM_UNLOCKED),
		1718	DRM_IOCTL_DEF_DRV(I915_GEM_WAIT, i915_gem_wait_ioctl, DRM_AUTH\|DRM_UNLOCKED),
		1719	DRM_IOCTL_DEF_DRV(I915_GEM_CONTEXT_CREATE, i915_gem_context_create_ioctl, DRM_UNLOCKED),
		1720	DRM_IOCTL_DEF_DRV(I915_GEM_CONTEXT_DESTROY, i915_gem_context_destroy_ioctl, DRM_UNLOCKED),
		1721	DRM_IOCTL_DEF_DRV(I915_REG_READ, i915_reg_read_ioctl, DRM_UNLOCKED),
		1722	};
		1723
		1724	int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls);
		1725
		1726	/*
		1727	* This is really ugly: Because old userspace abused the linux agp interface to
		1728	* manage the gtt, we need to claim that all intel devices are agp. For
		1729	* otherwise the drm core refuses to initialize the agp support code.
		1730	*/
		1731	int i915_driver_device_is_agp(struct drm_device * dev)
		1732	{
		1733	return 1;
		1734	}
		1735	#endif

Subversion Repositories Kolibri OS

(root)/drivers/video/drm/i915/i915_dma.c – Rev 3037