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2325 Serge 1
/* i915_drv.c -- i830,i845,i855,i865,i915 driver -*- linux-c -*-
2
 */
3
/*
4
 *
5
 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
6
 * All Rights Reserved.
7
 *
8
 * Permission is hereby granted, free of charge, to any person obtaining a
9
 * copy of this software and associated documentation files (the
10
 * "Software"), to deal in the Software without restriction, including
11
 * without limitation the rights to use, copy, modify, merge, publish,
12
 * distribute, sub license, and/or sell copies of the Software, and to
13
 * permit persons to whom the Software is furnished to do so, subject to
14
 * the following conditions:
15
 *
16
 * The above copyright notice and this permission notice (including the
17
 * next paragraph) shall be included in all copies or substantial portions
18
 * of the Software.
19
 *
20
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
23
 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
24
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
25
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
26
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27
 *
28
 */
29
 
2330 Serge 30
//#include 
3031 serge 31
#include 
32
#include 
2330 Serge 33
#include "i915_drv.h"
34
#include "intel_drv.h"
2325 Serge 35
 
36
#include 
37
#include 
38
#include 
39
#include 
40
#include 
41
 
3031 serge 42
#include 
43
 
2325 Serge 44
#include 
45
 
2330 Serge 46
#define __read_mostly
2327 Serge 47
 
2338 Serge 48
int init_display_kms(struct drm_device *dev);
2330 Serge 49
 
2340 Serge 50
struct drm_device *main_device;
2338 Serge 51
 
3031 serge 52
static int i915_modeset __read_mostly = 1;
53
MODULE_PARM_DESC(modeset,
54
		"Use kernel modesetting [KMS] (0=DRM_I915_KMS from .config, "
55
		"1=on, -1=force vga console preference [default])");
56
 
57
 
2332 Serge 58
int i915_panel_ignore_lid __read_mostly         =  0;
3031 serge 59
MODULE_PARM_DESC(panel_ignore_lid,
60
		"Override lid status (0=autodetect [default], 1=lid open, "
61
		"-1=lid closed)");
2330 Serge 62
 
2332 Serge 63
unsigned int i915_powersave  __read_mostly      =  0;
3031 serge 64
MODULE_PARM_DESC(powersave,
65
		"Enable powersavings, fbc, downclocking, etc. (default: true)");
2330 Serge 66
 
3031 serge 67
int i915_semaphores __read_mostly = -1;
2330 Serge 68
 
3031 serge 69
MODULE_PARM_DESC(semaphores,
70
		"Use semaphores for inter-ring sync (default: -1 (use per-chip defaults))");
2330 Serge 71
 
3031 serge 72
int i915_enable_rc6 __read_mostly      = 0;
73
MODULE_PARM_DESC(i915_enable_rc6,
74
		"Enable power-saving render C-state 6. "
75
		"Different stages can be selected via bitmask values "
76
		"(0 = disable; 1 = enable rc6; 2 = enable deep rc6; 4 = enable deepest rc6). "
77
		"For example, 3 would enable rc6 and deep rc6, and 7 would enable everything. "
78
		"default: -1 (use per-chip default)");
79
 
80
int i915_enable_fbc __read_mostly      =  0;
81
MODULE_PARM_DESC(i915_enable_fbc,
82
		"Enable frame buffer compression for power savings "
83
		"(default: -1 (use per-chip default))");
84
 
2330 Serge 85
unsigned int i915_lvds_downclock  __read_mostly =  0;
3031 serge 86
MODULE_PARM_DESC(lvds_downclock,
87
		"Use panel (LVDS/eDP) downclocking for power savings "
88
		"(default: false)");
2330 Serge 89
 
3031 serge 90
int i915_lvds_channel_mode __read_mostly;
91
MODULE_PARM_DESC(lvds_channel_mode,
92
		 "Specify LVDS channel mode "
93
		 "(0=probe BIOS [default], 1=single-channel, 2=dual-channel)");
2330 Serge 94
 
3031 serge 95
int i915_panel_use_ssc __read_mostly = -1;
96
MODULE_PARM_DESC(lvds_use_ssc,
97
		"Use Spread Spectrum Clock with panels [LVDS/eDP] "
98
		"(default: auto from VBT)");
99
 
2332 Serge 100
int i915_vbt_sdvo_panel_type __read_mostly      = -1;
3031 serge 101
MODULE_PARM_DESC(vbt_sdvo_panel_type,
102
		"Override/Ignore selection of SDVO panel mode in the VBT "
103
		"(-2=ignore, -1=auto [default], index in VBT BIOS table)");
2330 Serge 104
 
3031 serge 105
static bool i915_try_reset __read_mostly = true;
106
MODULE_PARM_DESC(reset, "Attempt GPU resets (default: true)");
107
 
108
bool i915_enable_hangcheck __read_mostly = false;
109
MODULE_PARM_DESC(enable_hangcheck,
110
		"Periodically check GPU activity for detecting hangs. "
111
		"WARNING: Disabling this can cause system wide hangs. "
112
		"(default: true)");
113
 
114
int i915_enable_ppgtt __read_mostly = false;
115
MODULE_PARM_DESC(i915_enable_ppgtt,
116
		"Enable PPGTT (default: true)");
117
 
118
unsigned int i915_preliminary_hw_support __read_mostly = true;
119
MODULE_PARM_DESC(preliminary_hw_support,
120
		"Enable preliminary hardware support. "
121
		"Enable Haswell and ValleyView Support. "
122
		"(default: false)");
123
 
124
 
2326 Serge 125
#define PCI_VENDOR_ID_INTEL        0x8086
126
 
2325 Serge 127
#define INTEL_VGA_DEVICE(id, info) {        \
2342 Serge 128
	.class = PCI_BASE_CLASS_DISPLAY << 16,	\
2325 Serge 129
    .class_mask = 0xff0000,                 \
130
    .vendor = 0x8086,                       \
131
    .device = id,                           \
132
    .subvendor = PCI_ANY_ID,                \
133
    .subdevice = PCI_ANY_ID,                \
134
    .driver_data = (unsigned long) info }
135
 
2339 Serge 136
 
137
static const struct intel_device_info intel_i915g_info = {
138
	.gen = 3, .is_i915g = 1, .cursor_needs_physical = 1,
139
	.has_overlay = 1, .overlay_needs_physical = 1,
140
};
141
static const struct intel_device_info intel_i915gm_info = {
142
	.gen = 3, .is_mobile = 1,
143
	.cursor_needs_physical = 1,
144
	.has_overlay = 1, .overlay_needs_physical = 1,
145
	.supports_tv = 1,
146
};
147
static const struct intel_device_info intel_i945g_info = {
148
	.gen = 3, .has_hotplug = 1, .cursor_needs_physical = 1,
149
	.has_overlay = 1, .overlay_needs_physical = 1,
150
};
151
static const struct intel_device_info intel_i945gm_info = {
152
	.gen = 3, .is_i945gm = 1, .is_mobile = 1,
153
	.has_hotplug = 1, .cursor_needs_physical = 1,
154
	.has_overlay = 1, .overlay_needs_physical = 1,
155
	.supports_tv = 1,
156
};
157
 
158
static const struct intel_device_info intel_i965g_info = {
159
	.gen = 4, .is_broadwater = 1,
160
	.has_hotplug = 1,
161
	.has_overlay = 1,
162
};
163
 
164
static const struct intel_device_info intel_i965gm_info = {
165
	.gen = 4, .is_crestline = 1,
166
	.is_mobile = 1, .has_fbc = 1, .has_hotplug = 1,
167
	.has_overlay = 1,
168
	.supports_tv = 1,
169
};
170
 
171
static const struct intel_device_info intel_g33_info = {
172
	.gen = 3, .is_g33 = 1,
173
	.need_gfx_hws = 1, .has_hotplug = 1,
174
	.has_overlay = 1,
175
};
176
 
177
static const struct intel_device_info intel_g45_info = {
178
	.gen = 4, .is_g4x = 1, .need_gfx_hws = 1,
179
	.has_pipe_cxsr = 1, .has_hotplug = 1,
180
	.has_bsd_ring = 1,
181
};
182
 
183
static const struct intel_device_info intel_gm45_info = {
184
	.gen = 4, .is_g4x = 1,
185
	.is_mobile = 1, .need_gfx_hws = 1, .has_fbc = 1,
186
	.has_pipe_cxsr = 1, .has_hotplug = 1,
187
	.supports_tv = 1,
188
	.has_bsd_ring = 1,
189
};
190
 
191
static const struct intel_device_info intel_pineview_info = {
192
	.gen = 3, .is_g33 = 1, .is_pineview = 1, .is_mobile = 1,
193
	.need_gfx_hws = 1, .has_hotplug = 1,
194
	.has_overlay = 1,
195
};
196
 
197
static const struct intel_device_info intel_ironlake_d_info = {
198
	.gen = 5,
3031 serge 199
	.need_gfx_hws = 1, .has_hotplug = 1,
2339 Serge 200
	.has_bsd_ring = 1,
201
};
202
 
203
static const struct intel_device_info intel_ironlake_m_info = {
204
	.gen = 5, .is_mobile = 1,
205
	.need_gfx_hws = 1, .has_hotplug = 1,
206
	.has_fbc = 1,
207
	.has_bsd_ring = 1,
208
};
209
 
2325 Serge 210
static const struct intel_device_info intel_sandybridge_d_info = {
211
    .gen = 6,
2330 Serge 212
	.need_gfx_hws = 1, .has_hotplug = 1,
2325 Serge 213
    .has_bsd_ring = 1,
214
    .has_blt_ring = 1,
3031 serge 215
	.has_llc = 1,
216
	.has_force_wake = 1,
2325 Serge 217
};
218
 
219
static const struct intel_device_info intel_sandybridge_m_info = {
2330 Serge 220
	.gen = 6, .is_mobile = 1,
221
	.need_gfx_hws = 1, .has_hotplug = 1,
2325 Serge 222
    .has_fbc      = 1,
223
    .has_bsd_ring = 1,
224
    .has_blt_ring = 1,
3031 serge 225
	.has_llc = 1,
226
	.has_force_wake = 1,
2325 Serge 227
};
228
 
2339 Serge 229
static const struct intel_device_info intel_ivybridge_d_info = {
230
	.is_ivybridge = 1, .gen = 7,
231
	.need_gfx_hws = 1, .has_hotplug = 1,
232
	.has_bsd_ring = 1,
233
	.has_blt_ring = 1,
3031 serge 234
	.has_llc = 1,
235
	.has_force_wake = 1,
2339 Serge 236
};
2325 Serge 237
 
2339 Serge 238
static const struct intel_device_info intel_ivybridge_m_info = {
239
	.is_ivybridge = 1, .gen = 7, .is_mobile = 1,
240
	.need_gfx_hws = 1, .has_hotplug = 1,
241
	.has_fbc = 0,	/* FBC is not enabled on Ivybridge mobile yet */
242
	.has_bsd_ring = 1,
243
	.has_blt_ring = 1,
3031 serge 244
	.has_llc = 1,
245
	.has_force_wake = 1,
2339 Serge 246
};
247
 
3031 serge 248
static const struct intel_device_info intel_valleyview_m_info = {
249
	.gen = 7, .is_mobile = 1,
250
	.need_gfx_hws = 1, .has_hotplug = 1,
251
	.has_fbc = 0,
252
	.has_bsd_ring = 1,
253
	.has_blt_ring = 1,
254
	.is_valleyview = 1,
255
};
256
 
257
static const struct intel_device_info intel_valleyview_d_info = {
258
	.gen = 7,
259
	.need_gfx_hws = 1, .has_hotplug = 1,
260
	.has_fbc = 0,
261
	.has_bsd_ring = 1,
262
	.has_blt_ring = 1,
263
	.is_valleyview = 1,
264
};
265
 
266
static const struct intel_device_info intel_haswell_d_info = {
267
	.is_haswell = 1, .gen = 7,
268
	.need_gfx_hws = 1, .has_hotplug = 1,
269
	.has_bsd_ring = 1,
270
	.has_blt_ring = 1,
271
	.has_llc = 1,
272
	.has_force_wake = 1,
273
};
274
 
275
static const struct intel_device_info intel_haswell_m_info = {
276
	.is_haswell = 1, .gen = 7, .is_mobile = 1,
277
	.need_gfx_hws = 1, .has_hotplug = 1,
278
	.has_bsd_ring = 1,
279
	.has_blt_ring = 1,
280
	.has_llc = 1,
281
	.has_force_wake = 1,
282
};
283
 
2325 Serge 284
static const struct pci_device_id pciidlist[] = {       /* aka */
2339 Serge 285
	INTEL_VGA_DEVICE(0x2582, &intel_i915g_info),		/* I915_G */
286
	INTEL_VGA_DEVICE(0x258a, &intel_i915g_info),		/* E7221_G */
287
	INTEL_VGA_DEVICE(0x2592, &intel_i915gm_info),		/* I915_GM */
288
	INTEL_VGA_DEVICE(0x2772, &intel_i945g_info),		/* I945_G */
289
	INTEL_VGA_DEVICE(0x27a2, &intel_i945gm_info),		/* I945_GM */
290
	INTEL_VGA_DEVICE(0x27ae, &intel_i945gm_info),		/* I945_GME */
291
	INTEL_VGA_DEVICE(0x2972, &intel_i965g_info),		/* I946_GZ */
292
	INTEL_VGA_DEVICE(0x2982, &intel_i965g_info),		/* G35_G */
293
	INTEL_VGA_DEVICE(0x2992, &intel_i965g_info),		/* I965_Q */
294
	INTEL_VGA_DEVICE(0x29a2, &intel_i965g_info),		/* I965_G */
295
	INTEL_VGA_DEVICE(0x29b2, &intel_g33_info),		/* Q35_G */
296
	INTEL_VGA_DEVICE(0x29c2, &intel_g33_info),		/* G33_G */
297
	INTEL_VGA_DEVICE(0x29d2, &intel_g33_info),		/* Q33_G */
298
	INTEL_VGA_DEVICE(0x2a02, &intel_i965gm_info),		/* I965_GM */
299
	INTEL_VGA_DEVICE(0x2a12, &intel_i965gm_info),		/* I965_GME */
300
	INTEL_VGA_DEVICE(0x2a42, &intel_gm45_info),		/* GM45_G */
301
	INTEL_VGA_DEVICE(0x2e02, &intel_g45_info),		/* IGD_E_G */
302
	INTEL_VGA_DEVICE(0x2e12, &intel_g45_info),		/* Q45_G */
303
	INTEL_VGA_DEVICE(0x2e22, &intel_g45_info),		/* G45_G */
304
	INTEL_VGA_DEVICE(0x2e32, &intel_g45_info),		/* G41_G */
305
	INTEL_VGA_DEVICE(0x2e42, &intel_g45_info),		/* B43_G */
306
	INTEL_VGA_DEVICE(0x2e92, &intel_g45_info),		/* B43_G.1 */
307
	INTEL_VGA_DEVICE(0xa001, &intel_pineview_info),
308
	INTEL_VGA_DEVICE(0xa011, &intel_pineview_info),
309
	INTEL_VGA_DEVICE(0x0042, &intel_ironlake_d_info),
310
	INTEL_VGA_DEVICE(0x0046, &intel_ironlake_m_info),
2325 Serge 311
    INTEL_VGA_DEVICE(0x0102, &intel_sandybridge_d_info),
312
    INTEL_VGA_DEVICE(0x0112, &intel_sandybridge_d_info),
313
    INTEL_VGA_DEVICE(0x0122, &intel_sandybridge_d_info),
314
    INTEL_VGA_DEVICE(0x0106, &intel_sandybridge_m_info),
315
    INTEL_VGA_DEVICE(0x0116, &intel_sandybridge_m_info),
316
    INTEL_VGA_DEVICE(0x0126, &intel_sandybridge_m_info),
317
    INTEL_VGA_DEVICE(0x010A, &intel_sandybridge_d_info),
2339 Serge 318
	INTEL_VGA_DEVICE(0x0156, &intel_ivybridge_m_info), /* GT1 mobile */
319
	INTEL_VGA_DEVICE(0x0166, &intel_ivybridge_m_info), /* GT2 mobile */
320
	INTEL_VGA_DEVICE(0x0152, &intel_ivybridge_d_info), /* GT1 desktop */
321
	INTEL_VGA_DEVICE(0x0162, &intel_ivybridge_d_info), /* GT2 desktop */
322
	INTEL_VGA_DEVICE(0x015a, &intel_ivybridge_d_info), /* GT1 server */
3031 serge 323
	INTEL_VGA_DEVICE(0x016a, &intel_ivybridge_d_info), /* GT2 server */
324
	INTEL_VGA_DEVICE(0x0402, &intel_haswell_d_info), /* GT1 desktop */
325
	INTEL_VGA_DEVICE(0x0412, &intel_haswell_d_info), /* GT2 desktop */
326
	INTEL_VGA_DEVICE(0x0422, &intel_haswell_d_info), /* GT2 desktop */
327
	INTEL_VGA_DEVICE(0x040a, &intel_haswell_d_info), /* GT1 server */
328
	INTEL_VGA_DEVICE(0x041a, &intel_haswell_d_info), /* GT2 server */
329
	INTEL_VGA_DEVICE(0x042a, &intel_haswell_d_info), /* GT2 server */
330
	INTEL_VGA_DEVICE(0x0406, &intel_haswell_m_info), /* GT1 mobile */
331
	INTEL_VGA_DEVICE(0x0416, &intel_haswell_m_info), /* GT2 mobile */
332
	INTEL_VGA_DEVICE(0x0426, &intel_haswell_m_info), /* GT2 mobile */
333
	INTEL_VGA_DEVICE(0x0C02, &intel_haswell_d_info), /* SDV GT1 desktop */
334
	INTEL_VGA_DEVICE(0x0C12, &intel_haswell_d_info), /* SDV GT2 desktop */
335
	INTEL_VGA_DEVICE(0x0C22, &intel_haswell_d_info), /* SDV GT2 desktop */
336
	INTEL_VGA_DEVICE(0x0C0A, &intel_haswell_d_info), /* SDV GT1 server */
337
	INTEL_VGA_DEVICE(0x0C1A, &intel_haswell_d_info), /* SDV GT2 server */
338
	INTEL_VGA_DEVICE(0x0C2A, &intel_haswell_d_info), /* SDV GT2 server */
339
	INTEL_VGA_DEVICE(0x0C06, &intel_haswell_m_info), /* SDV GT1 mobile */
340
	INTEL_VGA_DEVICE(0x0C16, &intel_haswell_m_info), /* SDV GT2 mobile */
341
	INTEL_VGA_DEVICE(0x0C26, &intel_haswell_m_info), /* SDV GT2 mobile */
342
	INTEL_VGA_DEVICE(0x0A02, &intel_haswell_d_info), /* ULT GT1 desktop */
343
	INTEL_VGA_DEVICE(0x0A12, &intel_haswell_d_info), /* ULT GT2 desktop */
344
	INTEL_VGA_DEVICE(0x0A22, &intel_haswell_d_info), /* ULT GT2 desktop */
345
	INTEL_VGA_DEVICE(0x0A0A, &intel_haswell_d_info), /* ULT GT1 server */
346
	INTEL_VGA_DEVICE(0x0A1A, &intel_haswell_d_info), /* ULT GT2 server */
347
	INTEL_VGA_DEVICE(0x0A2A, &intel_haswell_d_info), /* ULT GT2 server */
348
	INTEL_VGA_DEVICE(0x0A06, &intel_haswell_m_info), /* ULT GT1 mobile */
349
	INTEL_VGA_DEVICE(0x0A16, &intel_haswell_m_info), /* ULT GT2 mobile */
350
	INTEL_VGA_DEVICE(0x0A26, &intel_haswell_m_info), /* ULT GT2 mobile */
351
	INTEL_VGA_DEVICE(0x0D12, &intel_haswell_d_info), /* CRW GT1 desktop */
352
	INTEL_VGA_DEVICE(0x0D22, &intel_haswell_d_info), /* CRW GT2 desktop */
353
	INTEL_VGA_DEVICE(0x0D32, &intel_haswell_d_info), /* CRW GT2 desktop */
354
	INTEL_VGA_DEVICE(0x0D1A, &intel_haswell_d_info), /* CRW GT1 server */
355
	INTEL_VGA_DEVICE(0x0D2A, &intel_haswell_d_info), /* CRW GT2 server */
356
	INTEL_VGA_DEVICE(0x0D3A, &intel_haswell_d_info), /* CRW GT2 server */
357
	INTEL_VGA_DEVICE(0x0D16, &intel_haswell_m_info), /* CRW GT1 mobile */
358
	INTEL_VGA_DEVICE(0x0D26, &intel_haswell_m_info), /* CRW GT2 mobile */
359
	INTEL_VGA_DEVICE(0x0D36, &intel_haswell_m_info), /* CRW GT2 mobile */
360
	INTEL_VGA_DEVICE(0x0f30, &intel_valleyview_m_info),
361
	INTEL_VGA_DEVICE(0x0157, &intel_valleyview_m_info),
362
	INTEL_VGA_DEVICE(0x0155, &intel_valleyview_d_info),
2325 Serge 363
    {0, 0, 0}
364
};
365
 
2326 Serge 366
#define INTEL_PCH_DEVICE_ID_MASK        0xff00
367
#define INTEL_PCH_IBX_DEVICE_ID_TYPE    0x3b00
368
#define INTEL_PCH_CPT_DEVICE_ID_TYPE    0x1c00
369
#define INTEL_PCH_PPT_DEVICE_ID_TYPE    0x1e00
3031 serge 370
#define INTEL_PCH_LPT_DEVICE_ID_TYPE	0x8c00
2325 Serge 371
 
2342 Serge 372
void intel_detect_pch(struct drm_device *dev)
2326 Serge 373
{
374
    struct drm_i915_private *dev_priv = dev->dev_private;
375
    struct pci_dev *pch;
376
 
377
    /*
378
     * The reason to probe ISA bridge instead of Dev31:Fun0 is to
379
     * make graphics device passthrough work easy for VMM, that only
380
     * need to expose ISA bridge to let driver know the real hardware
381
     * underneath. This is a requirement from virtualization team.
382
     */
383
    pch = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, NULL);
384
    if (pch) {
385
        if (pch->vendor == PCI_VENDOR_ID_INTEL) {
3243 Serge 386
			unsigned short id;
2326 Serge 387
            id = pch->device & INTEL_PCH_DEVICE_ID_MASK;
3243 Serge 388
			dev_priv->pch_id = id;
2326 Serge 389
 
390
            if (id == INTEL_PCH_IBX_DEVICE_ID_TYPE) {
391
                dev_priv->pch_type = PCH_IBX;
3031 serge 392
				dev_priv->num_pch_pll = 2;
2326 Serge 393
                DRM_DEBUG_KMS("Found Ibex Peak PCH\n");
3243 Serge 394
				WARN_ON(!IS_GEN5(dev));
2326 Serge 395
            } else if (id == INTEL_PCH_CPT_DEVICE_ID_TYPE) {
396
                dev_priv->pch_type = PCH_CPT;
3031 serge 397
				dev_priv->num_pch_pll = 2;
2326 Serge 398
                DRM_DEBUG_KMS("Found CougarPoint PCH\n");
3243 Serge 399
				WARN_ON(!(IS_GEN6(dev) || IS_IVYBRIDGE(dev)));
2326 Serge 400
            } else if (id == INTEL_PCH_PPT_DEVICE_ID_TYPE) {
401
                /* PantherPoint is CPT compatible */
402
                dev_priv->pch_type = PCH_CPT;
3031 serge 403
				dev_priv->num_pch_pll = 2;
2326 Serge 404
                DRM_DEBUG_KMS("Found PatherPoint PCH\n");
3243 Serge 405
				WARN_ON(!(IS_GEN6(dev) || IS_IVYBRIDGE(dev)));
3031 serge 406
			} else if (id == INTEL_PCH_LPT_DEVICE_ID_TYPE) {
407
				dev_priv->pch_type = PCH_LPT;
408
				dev_priv->num_pch_pll = 0;
409
				DRM_DEBUG_KMS("Found LynxPoint PCH\n");
3243 Serge 410
				WARN_ON(!IS_HASWELL(dev));
411
			} else if (id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) {
412
				dev_priv->pch_type = PCH_LPT;
413
				dev_priv->num_pch_pll = 0;
414
				DRM_DEBUG_KMS("Found LynxPoint LP PCH\n");
415
				WARN_ON(!IS_HASWELL(dev));
2326 Serge 416
            }
3031 serge 417
			BUG_ON(dev_priv->num_pch_pll > I915_NUM_PLLS);
2326 Serge 418
        }
419
    }
420
}
421
 
3031 serge 422
bool i915_semaphore_is_enabled(struct drm_device *dev)
2326 Serge 423
{
3031 serge 424
	if (INTEL_INFO(dev)->gen < 6)
425
		return 0;
2326 Serge 426
 
3031 serge 427
	if (i915_semaphores >= 0)
428
		return i915_semaphores;
2326 Serge 429
 
3031 serge 430
#ifdef CONFIG_INTEL_IOMMU
431
	/* Enable semaphores on SNB when IO remapping is off */
432
	if (INTEL_INFO(dev)->gen == 6 && intel_iommu_gfx_mapped)
433
		return false;
434
#endif
2326 Serge 435
 
3031 serge 436
	return 1;
2326 Serge 437
}
438
 
2342 Serge 439
 
440
 
441
 
442
 
2325 Serge 443
int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent);
444
 
445
int i915_init(void)
446
{
447
    static pci_dev_t device;
448
    const struct pci_device_id  *ent;
449
    int  err;
450
 
451
    ent = find_pci_device(&device, pciidlist);
452
    if( unlikely(ent == NULL) )
453
    {
454
        dbgprintf("device not found\n");
455
        return 0;
456
    };
457
 
3031 serge 458
    struct intel_device_info *intel_info =
459
        (struct intel_device_info *) ent->driver_data;
460
 
3243 Serge 461
	if (intel_info->is_valleyview)
3031 serge 462
        if(!i915_preliminary_hw_support) {
463
            DRM_ERROR("Preliminary hardware support disabled\n");
464
            return -ENODEV;
465
        }
466
 
3037 serge 467
    DRM_INFO("device %x:%x\n", device.pci_dev.vendor,
2325 Serge 468
                                device.pci_dev.device);
469
 
3031 serge 470
    if (intel_info->gen != 3) {
471
 
472
    } else if (init_agp() != 0) {
473
        DRM_ERROR("drm/i915 can't work without intel_agp module!\n");
474
        return -ENODEV;
475
    }
476
 
2325 Serge 477
    err = drm_get_dev(&device.pci_dev, ent);
478
 
479
    return err;
480
}
481
 
482
int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent)
483
{
2340 Serge 484
    struct drm_device *dev;
3243 Serge 485
    static struct drm_driver driver;
486
 
2325 Serge 487
    int ret;
488
 
489
    dev = kzalloc(sizeof(*dev), 0);
490
    if (!dev)
491
        return -ENOMEM;
492
 
493
 //   ret = pci_enable_device(pdev);
494
 //   if (ret)
495
 //       goto err_g1;
496
 
3031 serge 497
    pci_set_master(pdev);
2325 Serge 498
 
499
 //   if ((ret = drm_fill_in_dev(dev, pdev, ent, driver))) {
500
 //       printk(KERN_ERR "DRM: Fill_in_dev failed.\n");
501
 //       goto err_g2;
502
 //   }
503
 
504
    dev->pdev = pdev;
505
    dev->pci_device = pdev->device;
506
    dev->pci_vendor = pdev->vendor;
507
 
508
    INIT_LIST_HEAD(&dev->filelist);
509
    INIT_LIST_HEAD(&dev->ctxlist);
510
    INIT_LIST_HEAD(&dev->vmalist);
511
    INIT_LIST_HEAD(&dev->maplist);
512
 
513
    spin_lock_init(&dev->count_lock);
514
    mutex_init(&dev->struct_mutex);
515
    mutex_init(&dev->ctxlist_mutex);
516
 
3243 Serge 517
    dev->driver = &driver;
518
 
2336 Serge 519
    ret = i915_driver_load(dev, ent->driver_data );
2325 Serge 520
 
2338 Serge 521
    if (ret)
522
        goto err_g4;
2330 Serge 523
 
2338 Serge 524
    ret = init_display_kms(dev);
2336 Serge 525
 
2338 Serge 526
    if (ret)
527
        goto err_g4;
2336 Serge 528
 
2325 Serge 529
    return 0;
530
 
531
err_g4:
532
//    drm_put_minor(&dev->primary);
533
//err_g3:
534
//    if (drm_core_check_feature(dev, DRIVER_MODESET))
535
//        drm_put_minor(&dev->control);
536
//err_g2:
537
//    pci_disable_device(pdev);
538
//err_g1:
539
    free(dev);
540
 
541
    return ret;
542
}
543
 
3031 serge 544
/* We give fast paths for the really cool registers */
545
#define NEEDS_FORCE_WAKE(dev_priv, reg) \
546
	((HAS_FORCE_WAKE((dev_priv)->dev)) && \
547
	 ((reg) < 0x40000) &&            \
548
	 ((reg) != FORCEWAKE))
2325 Serge 549
 
3031 serge 550
static bool IS_DISPLAYREG(u32 reg)
551
{
552
	/*
553
	 * This should make it easier to transition modules over to the
554
	 * new register block scheme, since we can do it incrementally.
555
	 */
556
	if (reg >= VLV_DISPLAY_BASE)
557
		return false;
558
 
559
	if (reg >= RENDER_RING_BASE &&
560
	    reg < RENDER_RING_BASE + 0xff)
561
		return false;
562
	if (reg >= GEN6_BSD_RING_BASE &&
563
	    reg < GEN6_BSD_RING_BASE + 0xff)
564
		return false;
565
	if (reg >= BLT_RING_BASE &&
566
	    reg < BLT_RING_BASE + 0xff)
567
		return false;
568
 
569
	if (reg == PGTBL_ER)
570
		return false;
571
 
572
	if (reg >= IPEIR_I965 &&
573
	    reg < HWSTAM)
574
		return false;
575
 
576
	if (reg == MI_MODE)
577
		return false;
578
 
579
	if (reg == GFX_MODE_GEN7)
580
		return false;
581
 
582
	if (reg == RENDER_HWS_PGA_GEN7 ||
583
	    reg == BSD_HWS_PGA_GEN7 ||
584
	    reg == BLT_HWS_PGA_GEN7)
585
		return false;
586
 
587
	if (reg == GEN6_BSD_SLEEP_PSMI_CONTROL ||
588
	    reg == GEN6_BSD_RNCID)
589
		return false;
590
 
591
	if (reg == GEN6_BLITTER_ECOSKPD)
592
		return false;
593
 
594
	if (reg >= 0x4000c &&
595
	    reg <= 0x4002c)
596
		return false;
597
 
598
	if (reg >= 0x4f000 &&
599
	    reg <= 0x4f08f)
600
		return false;
601
 
602
	if (reg >= 0x4f100 &&
603
	    reg <= 0x4f11f)
604
		return false;
605
 
606
	if (reg >= VLV_MASTER_IER &&
607
	    reg <= GEN6_PMIER)
608
		return false;
609
 
610
	if (reg >= FENCE_REG_SANDYBRIDGE_0 &&
611
	    reg < (FENCE_REG_SANDYBRIDGE_0 + (16*8)))
612
		return false;
613
 
614
	if (reg >= VLV_IIR_RW &&
615
	    reg <= VLV_ISR)
616
		return false;
617
 
618
	if (reg == FORCEWAKE_VLV ||
619
	    reg == FORCEWAKE_ACK_VLV)
620
		return false;
621
 
622
	if (reg == GEN6_GDRST)
623
		return false;
624
 
3243 Serge 625
	switch (reg) {
626
	case _3D_CHICKEN3:
627
	case IVB_CHICKEN3:
628
	case GEN7_COMMON_SLICE_CHICKEN1:
629
	case GEN7_L3CNTLREG1:
630
	case GEN7_L3_CHICKEN_MODE_REGISTER:
631
	case GEN7_ROW_CHICKEN2:
632
	case GEN7_L3SQCREG4:
633
	case GEN7_SQ_CHICKEN_MBCUNIT_CONFIG:
634
	case GEN7_HALF_SLICE_CHICKEN1:
635
	case GEN6_MBCTL:
636
	case GEN6_UCGCTL2:
637
		return false;
638
	default:
639
		break;
640
	}
641
 
3031 serge 642
	return true;
643
}
644
 
3243 Serge 645
static void
646
ilk_dummy_write(struct drm_i915_private *dev_priv)
647
{
648
	/* WaIssueDummyWriteToWakeupFromRC6: Issue a dummy write to wake up the
649
	 * chip from rc6 before touching it for real. MI_MODE is masked, hence
650
	 * harmless to write 0 into. */
651
	I915_WRITE_NOTRACE(MI_MODE, 0);
652
}
653
 
2342 Serge 654
#define __i915_read(x, y) \
655
u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg) { \
656
	u##x val = 0; \
3243 Serge 657
	if (IS_GEN5(dev_priv->dev)) \
658
		ilk_dummy_write(dev_priv); \
2342 Serge 659
	if (NEEDS_FORCE_WAKE((dev_priv), (reg))) { \
660
		unsigned long irqflags; \
661
		spin_lock_irqsave(&dev_priv->gt_lock, irqflags); \
662
		if (dev_priv->forcewake_count == 0) \
3031 serge 663
			dev_priv->gt.force_wake_get(dev_priv); \
2342 Serge 664
		val = read##y(dev_priv->regs + reg); \
665
		if (dev_priv->forcewake_count == 0) \
3031 serge 666
			dev_priv->gt.force_wake_put(dev_priv); \
2342 Serge 667
		spin_unlock_irqrestore(&dev_priv->gt_lock, irqflags); \
3031 serge 668
	} else if (IS_VALLEYVIEW(dev_priv->dev) && IS_DISPLAYREG(reg)) { \
669
		val = read##y(dev_priv->regs + reg + 0x180000);		\
2342 Serge 670
	} else { \
671
		val = read##y(dev_priv->regs + reg); \
672
	} \
673
	return val; \
674
}
675
 
676
__i915_read(8, b)
677
__i915_read(16, w)
678
__i915_read(32, l)
679
__i915_read(64, q)
680
#undef __i915_read
681
 
682
#define __i915_write(x, y) \
683
void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val) { \
3120 serge 684
	u32 __fifo_ret = 0; \
685
	trace_i915_reg_rw(true, reg, val, sizeof(val)); \
2342 Serge 686
	if (NEEDS_FORCE_WAKE((dev_priv), (reg))) { \
3120 serge 687
		__fifo_ret = __gen6_gt_wait_for_fifo(dev_priv); \
2342 Serge 688
	} \
3243 Serge 689
	if (IS_GEN5(dev_priv->dev)) \
690
		ilk_dummy_write(dev_priv); \
691
	if (IS_HASWELL(dev_priv->dev) && (I915_READ_NOTRACE(GEN7_ERR_INT) & ERR_INT_MMIO_UNCLAIMED)) { \
692
		DRM_ERROR("Unknown unclaimed register before writing to %x\n", reg); \
693
		I915_WRITE_NOTRACE(GEN7_ERR_INT, ERR_INT_MMIO_UNCLAIMED); \
694
	} \
3120 serge 695
	if (IS_VALLEYVIEW(dev_priv->dev) && IS_DISPLAYREG(reg)) { \
696
		write##y(val, dev_priv->regs + reg + 0x180000);		\
697
	} else {							\
2342 Serge 698
	write##y(val, dev_priv->regs + reg); \
3120 serge 699
	}								\
700
	if (unlikely(__fifo_ret)) { \
701
		gen6_gt_check_fifodbg(dev_priv); \
702
	} \
703
	if (IS_HASWELL(dev_priv->dev) && (I915_READ_NOTRACE(GEN7_ERR_INT) & ERR_INT_MMIO_UNCLAIMED)) { \
704
		DRM_ERROR("Unclaimed write to %x\n", reg); \
705
		writel(ERR_INT_MMIO_UNCLAIMED, dev_priv->regs + GEN7_ERR_INT);	\
706
	} \
2342 Serge 707
}
708
__i915_write(8, b)
709
__i915_write(16, w)
710
__i915_write(32, l)
711
__i915_write(64, q)
712
#undef __i915_write