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Merge tag 'drm-intel-next-2013-07-26-fixed' of git://people.freedesktop.org/~danvet...
[karo-tx-linux.git] / drivers / gpu / drm / i915 / i915_drv.c
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
30 #include <linux/device.h>
31 #include <drm/drmP.h>
32 #include <drm/i915_drm.h>
33 #include "i915_drv.h"
34 #include "i915_trace.h"
35 #include "intel_drv.h"
36
37 #include <linux/console.h>
38 #include <linux/module.h>
39 #include <drm/drm_crtc_helper.h>
40
41 static int i915_modeset __read_mostly = -1;
42 module_param_named(modeset, i915_modeset, int, 0400);
43 MODULE_PARM_DESC(modeset,
44                 "Use kernel modesetting [KMS] (0=DRM_I915_KMS from .config, "
45                 "1=on, -1=force vga console preference [default])");
46
47 unsigned int i915_fbpercrtc __always_unused = 0;
48 module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);
49
50 int i915_panel_ignore_lid __read_mostly = 1;
51 module_param_named(panel_ignore_lid, i915_panel_ignore_lid, int, 0600);
52 MODULE_PARM_DESC(panel_ignore_lid,
53                 "Override lid status (0=autodetect, 1=autodetect disabled [default], "
54                 "-1=force lid closed, -2=force lid open)");
55
56 unsigned int i915_powersave __read_mostly = 1;
57 module_param_named(powersave, i915_powersave, int, 0600);
58 MODULE_PARM_DESC(powersave,
59                 "Enable powersavings, fbc, downclocking, etc. (default: true)");
60
61 int i915_semaphores __read_mostly = -1;
62 module_param_named(semaphores, i915_semaphores, int, 0600);
63 MODULE_PARM_DESC(semaphores,
64                 "Use semaphores for inter-ring sync (default: -1 (use per-chip defaults))");
65
66 int i915_enable_rc6 __read_mostly = -1;
67 module_param_named(i915_enable_rc6, i915_enable_rc6, int, 0400);
68 MODULE_PARM_DESC(i915_enable_rc6,
69                 "Enable power-saving render C-state 6. "
70                 "Different stages can be selected via bitmask values "
71                 "(0 = disable; 1 = enable rc6; 2 = enable deep rc6; 4 = enable deepest rc6). "
72                 "For example, 3 would enable rc6 and deep rc6, and 7 would enable everything. "
73                 "default: -1 (use per-chip default)");
74
75 int i915_enable_fbc __read_mostly = -1;
76 module_param_named(i915_enable_fbc, i915_enable_fbc, int, 0600);
77 MODULE_PARM_DESC(i915_enable_fbc,
78                 "Enable frame buffer compression for power savings "
79                 "(default: -1 (use per-chip default))");
80
81 unsigned int i915_lvds_downclock __read_mostly = 0;
82 module_param_named(lvds_downclock, i915_lvds_downclock, int, 0400);
83 MODULE_PARM_DESC(lvds_downclock,
84                 "Use panel (LVDS/eDP) downclocking for power savings "
85                 "(default: false)");
86
87 int i915_lvds_channel_mode __read_mostly;
88 module_param_named(lvds_channel_mode, i915_lvds_channel_mode, int, 0600);
89 MODULE_PARM_DESC(lvds_channel_mode,
90                  "Specify LVDS channel mode "
91                  "(0=probe BIOS [default], 1=single-channel, 2=dual-channel)");
92
93 int i915_panel_use_ssc __read_mostly = -1;
94 module_param_named(lvds_use_ssc, i915_panel_use_ssc, int, 0600);
95 MODULE_PARM_DESC(lvds_use_ssc,
96                 "Use Spread Spectrum Clock with panels [LVDS/eDP] "
97                 "(default: auto from VBT)");
98
99 int i915_vbt_sdvo_panel_type __read_mostly = -1;
100 module_param_named(vbt_sdvo_panel_type, i915_vbt_sdvo_panel_type, int, 0600);
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)");
104
105 static bool i915_try_reset __read_mostly = true;
106 module_param_named(reset, i915_try_reset, bool, 0600);
107 MODULE_PARM_DESC(reset, "Attempt GPU resets (default: true)");
108
109 bool i915_enable_hangcheck __read_mostly = true;
110 module_param_named(enable_hangcheck, i915_enable_hangcheck, bool, 0644);
111 MODULE_PARM_DESC(enable_hangcheck,
112                 "Periodically check GPU activity for detecting hangs. "
113                 "WARNING: Disabling this can cause system wide hangs. "
114                 "(default: true)");
115
116 int i915_enable_ppgtt __read_mostly = -1;
117 module_param_named(i915_enable_ppgtt, i915_enable_ppgtt, int, 0600);
118 MODULE_PARM_DESC(i915_enable_ppgtt,
119                 "Enable PPGTT (default: true)");
120
121 int i915_enable_psr __read_mostly = 0;
122 module_param_named(enable_psr, i915_enable_psr, int, 0600);
123 MODULE_PARM_DESC(enable_psr, "Enable PSR (default: false)");
124
125 unsigned int i915_preliminary_hw_support __read_mostly = 0;
126 module_param_named(preliminary_hw_support, i915_preliminary_hw_support, int, 0600);
127 MODULE_PARM_DESC(preliminary_hw_support,
128                 "Enable preliminary hardware support. (default: false)");
129
130 int i915_disable_power_well __read_mostly = 1;
131 module_param_named(disable_power_well, i915_disable_power_well, int, 0600);
132 MODULE_PARM_DESC(disable_power_well,
133                  "Disable the power well when possible (default: true)");
134
135 int i915_enable_ips __read_mostly = 1;
136 module_param_named(enable_ips, i915_enable_ips, int, 0600);
137 MODULE_PARM_DESC(enable_ips, "Enable IPS (default: true)");
138
139 bool i915_fastboot __read_mostly = 0;
140 module_param_named(fastboot, i915_fastboot, bool, 0600);
141 MODULE_PARM_DESC(fastboot, "Try to skip unnecessary mode sets at boot time "
142                  "(default: false)");
143
144 bool i915_prefault_disable __read_mostly;
145 module_param_named(prefault_disable, i915_prefault_disable, bool, 0600);
146 MODULE_PARM_DESC(prefault_disable,
147                 "Disable page prefaulting for pread/pwrite/reloc (default:false). For developers only.");
148
149 static struct drm_driver driver;
150 extern int intel_agp_enabled;
151
152 #define INTEL_VGA_DEVICE(id, info) {            \
153         .class = PCI_BASE_CLASS_DISPLAY << 16,  \
154         .class_mask = 0xff0000,                 \
155         .vendor = 0x8086,                       \
156         .device = id,                           \
157         .subvendor = PCI_ANY_ID,                \
158         .subdevice = PCI_ANY_ID,                \
159         .driver_data = (unsigned long) info }
160
161 #define INTEL_QUANTA_VGA_DEVICE(info) {         \
162         .class = PCI_BASE_CLASS_DISPLAY << 16,  \
163         .class_mask = 0xff0000,                 \
164         .vendor = 0x8086,                       \
165         .device = 0x16a,                        \
166         .subvendor = 0x152d,                    \
167         .subdevice = 0x8990,                    \
168         .driver_data = (unsigned long) info }
169
170
171 static const struct intel_device_info intel_i830_info = {
172         .gen = 2, .is_mobile = 1, .cursor_needs_physical = 1, .num_pipes = 2,
173         .has_overlay = 1, .overlay_needs_physical = 1,
174 };
175
176 static const struct intel_device_info intel_845g_info = {
177         .gen = 2, .num_pipes = 1,
178         .has_overlay = 1, .overlay_needs_physical = 1,
179 };
180
181 static const struct intel_device_info intel_i85x_info = {
182         .gen = 2, .is_i85x = 1, .is_mobile = 1, .num_pipes = 2,
183         .cursor_needs_physical = 1,
184         .has_overlay = 1, .overlay_needs_physical = 1,
185 };
186
187 static const struct intel_device_info intel_i865g_info = {
188         .gen = 2, .num_pipes = 1,
189         .has_overlay = 1, .overlay_needs_physical = 1,
190 };
191
192 static const struct intel_device_info intel_i915g_info = {
193         .gen = 3, .is_i915g = 1, .cursor_needs_physical = 1, .num_pipes = 2,
194         .has_overlay = 1, .overlay_needs_physical = 1,
195 };
196 static const struct intel_device_info intel_i915gm_info = {
197         .gen = 3, .is_mobile = 1, .num_pipes = 2,
198         .cursor_needs_physical = 1,
199         .has_overlay = 1, .overlay_needs_physical = 1,
200         .supports_tv = 1,
201 };
202 static const struct intel_device_info intel_i945g_info = {
203         .gen = 3, .has_hotplug = 1, .cursor_needs_physical = 1, .num_pipes = 2,
204         .has_overlay = 1, .overlay_needs_physical = 1,
205 };
206 static const struct intel_device_info intel_i945gm_info = {
207         .gen = 3, .is_i945gm = 1, .is_mobile = 1, .num_pipes = 2,
208         .has_hotplug = 1, .cursor_needs_physical = 1,
209         .has_overlay = 1, .overlay_needs_physical = 1,
210         .supports_tv = 1,
211 };
212
213 static const struct intel_device_info intel_i965g_info = {
214         .gen = 4, .is_broadwater = 1, .num_pipes = 2,
215         .has_hotplug = 1,
216         .has_overlay = 1,
217 };
218
219 static const struct intel_device_info intel_i965gm_info = {
220         .gen = 4, .is_crestline = 1, .num_pipes = 2,
221         .is_mobile = 1, .has_fbc = 1, .has_hotplug = 1,
222         .has_overlay = 1,
223         .supports_tv = 1,
224 };
225
226 static const struct intel_device_info intel_g33_info = {
227         .gen = 3, .is_g33 = 1, .num_pipes = 2,
228         .need_gfx_hws = 1, .has_hotplug = 1,
229         .has_overlay = 1,
230 };
231
232 static const struct intel_device_info intel_g45_info = {
233         .gen = 4, .is_g4x = 1, .need_gfx_hws = 1, .num_pipes = 2,
234         .has_pipe_cxsr = 1, .has_hotplug = 1,
235         .has_bsd_ring = 1,
236 };
237
238 static const struct intel_device_info intel_gm45_info = {
239         .gen = 4, .is_g4x = 1, .num_pipes = 2,
240         .is_mobile = 1, .need_gfx_hws = 1, .has_fbc = 1,
241         .has_pipe_cxsr = 1, .has_hotplug = 1,
242         .supports_tv = 1,
243         .has_bsd_ring = 1,
244 };
245
246 static const struct intel_device_info intel_pineview_info = {
247         .gen = 3, .is_g33 = 1, .is_pineview = 1, .is_mobile = 1, .num_pipes = 2,
248         .need_gfx_hws = 1, .has_hotplug = 1,
249         .has_overlay = 1,
250 };
251
252 static const struct intel_device_info intel_ironlake_d_info = {
253         .gen = 5, .num_pipes = 2,
254         .need_gfx_hws = 1, .has_hotplug = 1,
255         .has_bsd_ring = 1,
256 };
257
258 static const struct intel_device_info intel_ironlake_m_info = {
259         .gen = 5, .is_mobile = 1, .num_pipes = 2,
260         .need_gfx_hws = 1, .has_hotplug = 1,
261         .has_fbc = 1,
262         .has_bsd_ring = 1,
263 };
264
265 static const struct intel_device_info intel_sandybridge_d_info = {
266         .gen = 6, .num_pipes = 2,
267         .need_gfx_hws = 1, .has_hotplug = 1,
268         .has_bsd_ring = 1,
269         .has_blt_ring = 1,
270         .has_llc = 1,
271         .has_force_wake = 1,
272 };
273
274 static const struct intel_device_info intel_sandybridge_m_info = {
275         .gen = 6, .is_mobile = 1, .num_pipes = 2,
276         .need_gfx_hws = 1, .has_hotplug = 1,
277         .has_fbc = 1,
278         .has_bsd_ring = 1,
279         .has_blt_ring = 1,
280         .has_llc = 1,
281         .has_force_wake = 1,
282 };
283
284 #define GEN7_FEATURES  \
285         .gen = 7, .num_pipes = 3, \
286         .need_gfx_hws = 1, .has_hotplug = 1, \
287         .has_bsd_ring = 1, \
288         .has_blt_ring = 1, \
289         .has_llc = 1, \
290         .has_force_wake = 1
291
292 static const struct intel_device_info intel_ivybridge_d_info = {
293         GEN7_FEATURES,
294         .is_ivybridge = 1,
295 };
296
297 static const struct intel_device_info intel_ivybridge_m_info = {
298         GEN7_FEATURES,
299         .is_ivybridge = 1,
300         .is_mobile = 1,
301         .has_fbc = 1,
302 };
303
304 static const struct intel_device_info intel_ivybridge_q_info = {
305         GEN7_FEATURES,
306         .is_ivybridge = 1,
307         .num_pipes = 0, /* legal, last one wins */
308 };
309
310 static const struct intel_device_info intel_valleyview_m_info = {
311         GEN7_FEATURES,
312         .is_mobile = 1,
313         .num_pipes = 2,
314         .is_valleyview = 1,
315         .display_mmio_offset = VLV_DISPLAY_BASE,
316         .has_llc = 0, /* legal, last one wins */
317 };
318
319 static const struct intel_device_info intel_valleyview_d_info = {
320         GEN7_FEATURES,
321         .num_pipes = 2,
322         .is_valleyview = 1,
323         .display_mmio_offset = VLV_DISPLAY_BASE,
324         .has_llc = 0, /* legal, last one wins */
325 };
326
327 static const struct intel_device_info intel_haswell_d_info = {
328         GEN7_FEATURES,
329         .is_haswell = 1,
330         .has_ddi = 1,
331         .has_fpga_dbg = 1,
332         .has_vebox_ring = 1,
333 };
334
335 static const struct intel_device_info intel_haswell_m_info = {
336         GEN7_FEATURES,
337         .is_haswell = 1,
338         .is_mobile = 1,
339         .has_ddi = 1,
340         .has_fpga_dbg = 1,
341         .has_fbc = 1,
342         .has_vebox_ring = 1,
343 };
344
345 static const struct pci_device_id pciidlist[] = {               /* aka */
346         INTEL_VGA_DEVICE(0x3577, &intel_i830_info),             /* I830_M */
347         INTEL_VGA_DEVICE(0x2562, &intel_845g_info),             /* 845_G */
348         INTEL_VGA_DEVICE(0x3582, &intel_i85x_info),             /* I855_GM */
349         INTEL_VGA_DEVICE(0x358e, &intel_i85x_info),
350         INTEL_VGA_DEVICE(0x2572, &intel_i865g_info),            /* I865_G */
351         INTEL_VGA_DEVICE(0x2582, &intel_i915g_info),            /* I915_G */
352         INTEL_VGA_DEVICE(0x258a, &intel_i915g_info),            /* E7221_G */
353         INTEL_VGA_DEVICE(0x2592, &intel_i915gm_info),           /* I915_GM */
354         INTEL_VGA_DEVICE(0x2772, &intel_i945g_info),            /* I945_G */
355         INTEL_VGA_DEVICE(0x27a2, &intel_i945gm_info),           /* I945_GM */
356         INTEL_VGA_DEVICE(0x27ae, &intel_i945gm_info),           /* I945_GME */
357         INTEL_VGA_DEVICE(0x2972, &intel_i965g_info),            /* I946_GZ */
358         INTEL_VGA_DEVICE(0x2982, &intel_i965g_info),            /* G35_G */
359         INTEL_VGA_DEVICE(0x2992, &intel_i965g_info),            /* I965_Q */
360         INTEL_VGA_DEVICE(0x29a2, &intel_i965g_info),            /* I965_G */
361         INTEL_VGA_DEVICE(0x29b2, &intel_g33_info),              /* Q35_G */
362         INTEL_VGA_DEVICE(0x29c2, &intel_g33_info),              /* G33_G */
363         INTEL_VGA_DEVICE(0x29d2, &intel_g33_info),              /* Q33_G */
364         INTEL_VGA_DEVICE(0x2a02, &intel_i965gm_info),           /* I965_GM */
365         INTEL_VGA_DEVICE(0x2a12, &intel_i965gm_info),           /* I965_GME */
366         INTEL_VGA_DEVICE(0x2a42, &intel_gm45_info),             /* GM45_G */
367         INTEL_VGA_DEVICE(0x2e02, &intel_g45_info),              /* IGD_E_G */
368         INTEL_VGA_DEVICE(0x2e12, &intel_g45_info),              /* Q45_G */
369         INTEL_VGA_DEVICE(0x2e22, &intel_g45_info),              /* G45_G */
370         INTEL_VGA_DEVICE(0x2e32, &intel_g45_info),              /* G41_G */
371         INTEL_VGA_DEVICE(0x2e42, &intel_g45_info),              /* B43_G */
372         INTEL_VGA_DEVICE(0x2e92, &intel_g45_info),              /* B43_G.1 */
373         INTEL_VGA_DEVICE(0xa001, &intel_pineview_info),
374         INTEL_VGA_DEVICE(0xa011, &intel_pineview_info),
375         INTEL_VGA_DEVICE(0x0042, &intel_ironlake_d_info),
376         INTEL_VGA_DEVICE(0x0046, &intel_ironlake_m_info),
377         INTEL_VGA_DEVICE(0x0102, &intel_sandybridge_d_info),
378         INTEL_VGA_DEVICE(0x0112, &intel_sandybridge_d_info),
379         INTEL_VGA_DEVICE(0x0122, &intel_sandybridge_d_info),
380         INTEL_VGA_DEVICE(0x0106, &intel_sandybridge_m_info),
381         INTEL_VGA_DEVICE(0x0116, &intel_sandybridge_m_info),
382         INTEL_VGA_DEVICE(0x0126, &intel_sandybridge_m_info),
383         INTEL_VGA_DEVICE(0x010A, &intel_sandybridge_d_info),
384         INTEL_VGA_DEVICE(0x0156, &intel_ivybridge_m_info), /* GT1 mobile */
385         INTEL_VGA_DEVICE(0x0166, &intel_ivybridge_m_info), /* GT2 mobile */
386         INTEL_VGA_DEVICE(0x0152, &intel_ivybridge_d_info), /* GT1 desktop */
387         INTEL_VGA_DEVICE(0x0162, &intel_ivybridge_d_info), /* GT2 desktop */
388         INTEL_VGA_DEVICE(0x015a, &intel_ivybridge_d_info), /* GT1 server */
389         INTEL_QUANTA_VGA_DEVICE(&intel_ivybridge_q_info), /* Quanta transcode */
390         INTEL_VGA_DEVICE(0x016a, &intel_ivybridge_d_info), /* GT2 server */
391         INTEL_VGA_DEVICE(0x0402, &intel_haswell_d_info), /* GT1 desktop */
392         INTEL_VGA_DEVICE(0x0412, &intel_haswell_d_info), /* GT2 desktop */
393         INTEL_VGA_DEVICE(0x0422, &intel_haswell_d_info), /* GT3 desktop */
394         INTEL_VGA_DEVICE(0x040a, &intel_haswell_d_info), /* GT1 server */
395         INTEL_VGA_DEVICE(0x041a, &intel_haswell_d_info), /* GT2 server */
396         INTEL_VGA_DEVICE(0x042a, &intel_haswell_d_info), /* GT3 server */
397         INTEL_VGA_DEVICE(0x0406, &intel_haswell_m_info), /* GT1 mobile */
398         INTEL_VGA_DEVICE(0x0416, &intel_haswell_m_info), /* GT2 mobile */
399         INTEL_VGA_DEVICE(0x0426, &intel_haswell_m_info), /* GT2 mobile */
400         INTEL_VGA_DEVICE(0x040B, &intel_haswell_d_info), /* GT1 reserved */
401         INTEL_VGA_DEVICE(0x041B, &intel_haswell_d_info), /* GT2 reserved */
402         INTEL_VGA_DEVICE(0x042B, &intel_haswell_d_info), /* GT3 reserved */
403         INTEL_VGA_DEVICE(0x040E, &intel_haswell_d_info), /* GT1 reserved */
404         INTEL_VGA_DEVICE(0x041E, &intel_haswell_d_info), /* GT2 reserved */
405         INTEL_VGA_DEVICE(0x042E, &intel_haswell_d_info), /* GT3 reserved */
406         INTEL_VGA_DEVICE(0x0C02, &intel_haswell_d_info), /* SDV GT1 desktop */
407         INTEL_VGA_DEVICE(0x0C12, &intel_haswell_d_info), /* SDV GT2 desktop */
408         INTEL_VGA_DEVICE(0x0C22, &intel_haswell_d_info), /* SDV GT3 desktop */
409         INTEL_VGA_DEVICE(0x0C0A, &intel_haswell_d_info), /* SDV GT1 server */
410         INTEL_VGA_DEVICE(0x0C1A, &intel_haswell_d_info), /* SDV GT2 server */
411         INTEL_VGA_DEVICE(0x0C2A, &intel_haswell_d_info), /* SDV GT3 server */
412         INTEL_VGA_DEVICE(0x0C06, &intel_haswell_m_info), /* SDV GT1 mobile */
413         INTEL_VGA_DEVICE(0x0C16, &intel_haswell_m_info), /* SDV GT2 mobile */
414         INTEL_VGA_DEVICE(0x0C26, &intel_haswell_m_info), /* SDV GT3 mobile */
415         INTEL_VGA_DEVICE(0x0C0B, &intel_haswell_d_info), /* SDV GT1 reserved */
416         INTEL_VGA_DEVICE(0x0C1B, &intel_haswell_d_info), /* SDV GT2 reserved */
417         INTEL_VGA_DEVICE(0x0C2B, &intel_haswell_d_info), /* SDV GT3 reserved */
418         INTEL_VGA_DEVICE(0x0C0E, &intel_haswell_d_info), /* SDV GT1 reserved */
419         INTEL_VGA_DEVICE(0x0C1E, &intel_haswell_d_info), /* SDV GT2 reserved */
420         INTEL_VGA_DEVICE(0x0C2E, &intel_haswell_d_info), /* SDV GT3 reserved */
421         INTEL_VGA_DEVICE(0x0A02, &intel_haswell_d_info), /* ULT GT1 desktop */
422         INTEL_VGA_DEVICE(0x0A12, &intel_haswell_d_info), /* ULT GT2 desktop */
423         INTEL_VGA_DEVICE(0x0A22, &intel_haswell_d_info), /* ULT GT3 desktop */
424         INTEL_VGA_DEVICE(0x0A0A, &intel_haswell_d_info), /* ULT GT1 server */
425         INTEL_VGA_DEVICE(0x0A1A, &intel_haswell_d_info), /* ULT GT2 server */
426         INTEL_VGA_DEVICE(0x0A2A, &intel_haswell_d_info), /* ULT GT3 server */
427         INTEL_VGA_DEVICE(0x0A06, &intel_haswell_m_info), /* ULT GT1 mobile */
428         INTEL_VGA_DEVICE(0x0A16, &intel_haswell_m_info), /* ULT GT2 mobile */
429         INTEL_VGA_DEVICE(0x0A26, &intel_haswell_m_info), /* ULT GT3 mobile */
430         INTEL_VGA_DEVICE(0x0A0B, &intel_haswell_d_info), /* ULT GT1 reserved */
431         INTEL_VGA_DEVICE(0x0A1B, &intel_haswell_d_info), /* ULT GT2 reserved */
432         INTEL_VGA_DEVICE(0x0A2B, &intel_haswell_d_info), /* ULT GT3 reserved */
433         INTEL_VGA_DEVICE(0x0A0E, &intel_haswell_m_info), /* ULT GT1 reserved */
434         INTEL_VGA_DEVICE(0x0A1E, &intel_haswell_m_info), /* ULT GT2 reserved */
435         INTEL_VGA_DEVICE(0x0A2E, &intel_haswell_m_info), /* ULT GT3 reserved */
436         INTEL_VGA_DEVICE(0x0D02, &intel_haswell_d_info), /* CRW GT1 desktop */
437         INTEL_VGA_DEVICE(0x0D12, &intel_haswell_d_info), /* CRW GT2 desktop */
438         INTEL_VGA_DEVICE(0x0D22, &intel_haswell_d_info), /* CRW GT3 desktop */
439         INTEL_VGA_DEVICE(0x0D0A, &intel_haswell_d_info), /* CRW GT1 server */
440         INTEL_VGA_DEVICE(0x0D1A, &intel_haswell_d_info), /* CRW GT2 server */
441         INTEL_VGA_DEVICE(0x0D2A, &intel_haswell_d_info), /* CRW GT3 server */
442         INTEL_VGA_DEVICE(0x0D06, &intel_haswell_m_info), /* CRW GT1 mobile */
443         INTEL_VGA_DEVICE(0x0D16, &intel_haswell_m_info), /* CRW GT2 mobile */
444         INTEL_VGA_DEVICE(0x0D26, &intel_haswell_m_info), /* CRW GT3 mobile */
445         INTEL_VGA_DEVICE(0x0D0B, &intel_haswell_d_info), /* CRW GT1 reserved */
446         INTEL_VGA_DEVICE(0x0D1B, &intel_haswell_d_info), /* CRW GT2 reserved */
447         INTEL_VGA_DEVICE(0x0D2B, &intel_haswell_d_info), /* CRW GT3 reserved */
448         INTEL_VGA_DEVICE(0x0D0E, &intel_haswell_d_info), /* CRW GT1 reserved */
449         INTEL_VGA_DEVICE(0x0D1E, &intel_haswell_d_info), /* CRW GT2 reserved */
450         INTEL_VGA_DEVICE(0x0D2E, &intel_haswell_d_info), /* CRW GT3 reserved */
451         INTEL_VGA_DEVICE(0x0f30, &intel_valleyview_m_info),
452         INTEL_VGA_DEVICE(0x0f31, &intel_valleyview_m_info),
453         INTEL_VGA_DEVICE(0x0f32, &intel_valleyview_m_info),
454         INTEL_VGA_DEVICE(0x0f33, &intel_valleyview_m_info),
455         INTEL_VGA_DEVICE(0x0157, &intel_valleyview_m_info),
456         INTEL_VGA_DEVICE(0x0155, &intel_valleyview_d_info),
457         {0, 0, 0}
458 };
459
460 #if defined(CONFIG_DRM_I915_KMS)
461 MODULE_DEVICE_TABLE(pci, pciidlist);
462 #endif
463
464 void intel_detect_pch(struct drm_device *dev)
465 {
466         struct drm_i915_private *dev_priv = dev->dev_private;
467         struct pci_dev *pch;
468
469         /* In all current cases, num_pipes is equivalent to the PCH_NOP setting
470          * (which really amounts to a PCH but no South Display).
471          */
472         if (INTEL_INFO(dev)->num_pipes == 0) {
473                 dev_priv->pch_type = PCH_NOP;
474                 return;
475         }
476
477         /*
478          * The reason to probe ISA bridge instead of Dev31:Fun0 is to
479          * make graphics device passthrough work easy for VMM, that only
480          * need to expose ISA bridge to let driver know the real hardware
481          * underneath. This is a requirement from virtualization team.
482          *
483          * In some virtualized environments (e.g. XEN), there is irrelevant
484          * ISA bridge in the system. To work reliably, we should scan trhough
485          * all the ISA bridge devices and check for the first match, instead
486          * of only checking the first one.
487          */
488         pch = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, NULL);
489         while (pch) {
490                 struct pci_dev *curr = pch;
491                 if (pch->vendor == PCI_VENDOR_ID_INTEL) {
492                         unsigned short id;
493                         id = pch->device & INTEL_PCH_DEVICE_ID_MASK;
494                         dev_priv->pch_id = id;
495
496                         if (id == INTEL_PCH_IBX_DEVICE_ID_TYPE) {
497                                 dev_priv->pch_type = PCH_IBX;
498                                 DRM_DEBUG_KMS("Found Ibex Peak PCH\n");
499                                 WARN_ON(!IS_GEN5(dev));
500                         } else if (id == INTEL_PCH_CPT_DEVICE_ID_TYPE) {
501                                 dev_priv->pch_type = PCH_CPT;
502                                 DRM_DEBUG_KMS("Found CougarPoint PCH\n");
503                                 WARN_ON(!(IS_GEN6(dev) || IS_IVYBRIDGE(dev)));
504                         } else if (id == INTEL_PCH_PPT_DEVICE_ID_TYPE) {
505                                 /* PantherPoint is CPT compatible */
506                                 dev_priv->pch_type = PCH_CPT;
507                                 DRM_DEBUG_KMS("Found PatherPoint PCH\n");
508                                 WARN_ON(!(IS_GEN6(dev) || IS_IVYBRIDGE(dev)));
509                         } else if (id == INTEL_PCH_LPT_DEVICE_ID_TYPE) {
510                                 dev_priv->pch_type = PCH_LPT;
511                                 DRM_DEBUG_KMS("Found LynxPoint PCH\n");
512                                 WARN_ON(!IS_HASWELL(dev));
513                                 WARN_ON(IS_ULT(dev));
514                         } else if (id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) {
515                                 dev_priv->pch_type = PCH_LPT;
516                                 DRM_DEBUG_KMS("Found LynxPoint LP PCH\n");
517                                 WARN_ON(!IS_HASWELL(dev));
518                                 WARN_ON(!IS_ULT(dev));
519                         } else {
520                                 goto check_next;
521                         }
522                         pci_dev_put(pch);
523                         break;
524                 }
525 check_next:
526                 pch = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, curr);
527                 pci_dev_put(curr);
528         }
529         if (!pch)
530                 DRM_DEBUG_KMS("No PCH found?\n");
531 }
532
533 bool i915_semaphore_is_enabled(struct drm_device *dev)
534 {
535         if (INTEL_INFO(dev)->gen < 6)
536                 return 0;
537
538         if (i915_semaphores >= 0)
539                 return i915_semaphores;
540
541 #ifdef CONFIG_INTEL_IOMMU
542         /* Enable semaphores on SNB when IO remapping is off */
543         if (INTEL_INFO(dev)->gen == 6 && intel_iommu_gfx_mapped)
544                 return false;
545 #endif
546
547         return 1;
548 }
549
550 static int i915_drm_freeze(struct drm_device *dev)
551 {
552         struct drm_i915_private *dev_priv = dev->dev_private;
553         struct drm_crtc *crtc;
554
555         /* ignore lid events during suspend */
556         mutex_lock(&dev_priv->modeset_restore_lock);
557         dev_priv->modeset_restore = MODESET_SUSPENDED;
558         mutex_unlock(&dev_priv->modeset_restore_lock);
559
560         intel_set_power_well(dev, true);
561
562         drm_kms_helper_poll_disable(dev);
563
564         pci_save_state(dev->pdev);
565
566         /* If KMS is active, we do the leavevt stuff here */
567         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
568                 int error;
569
570                 mutex_lock(&dev->struct_mutex);
571                 error = i915_gem_idle(dev);
572                 mutex_unlock(&dev->struct_mutex);
573                 if (error) {
574                         dev_err(&dev->pdev->dev,
575                                 "GEM idle failed, resume might fail\n");
576                         return error;
577                 }
578
579                 cancel_delayed_work_sync(&dev_priv->rps.delayed_resume_work);
580
581                 drm_irq_uninstall(dev);
582                 dev_priv->enable_hotplug_processing = false;
583                 /*
584                  * Disable CRTCs directly since we want to preserve sw state
585                  * for _thaw.
586                  */
587                 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
588                         dev_priv->display.crtc_disable(crtc);
589
590                 intel_modeset_suspend_hw(dev);
591         }
592
593         i915_save_state(dev);
594
595         intel_opregion_fini(dev);
596
597         console_lock();
598         intel_fbdev_set_suspend(dev, FBINFO_STATE_SUSPENDED);
599         console_unlock();
600
601         return 0;
602 }
603
604 int i915_suspend(struct drm_device *dev, pm_message_t state)
605 {
606         int error;
607
608         if (!dev || !dev->dev_private) {
609                 DRM_ERROR("dev: %p\n", dev);
610                 DRM_ERROR("DRM not initialized, aborting suspend.\n");
611                 return -ENODEV;
612         }
613
614         if (state.event == PM_EVENT_PRETHAW)
615                 return 0;
616
617
618         if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
619                 return 0;
620
621         error = i915_drm_freeze(dev);
622         if (error)
623                 return error;
624
625         if (state.event == PM_EVENT_SUSPEND) {
626                 /* Shut down the device */
627                 pci_disable_device(dev->pdev);
628                 pci_set_power_state(dev->pdev, PCI_D3hot);
629         }
630
631         return 0;
632 }
633
634 void intel_console_resume(struct work_struct *work)
635 {
636         struct drm_i915_private *dev_priv =
637                 container_of(work, struct drm_i915_private,
638                              console_resume_work);
639         struct drm_device *dev = dev_priv->dev;
640
641         console_lock();
642         intel_fbdev_set_suspend(dev, FBINFO_STATE_RUNNING);
643         console_unlock();
644 }
645
646 static void intel_resume_hotplug(struct drm_device *dev)
647 {
648         struct drm_mode_config *mode_config = &dev->mode_config;
649         struct intel_encoder *encoder;
650
651         mutex_lock(&mode_config->mutex);
652         DRM_DEBUG_KMS("running encoder hotplug functions\n");
653
654         list_for_each_entry(encoder, &mode_config->encoder_list, base.head)
655                 if (encoder->hot_plug)
656                         encoder->hot_plug(encoder);
657
658         mutex_unlock(&mode_config->mutex);
659
660         /* Just fire off a uevent and let userspace tell us what to do */
661         drm_helper_hpd_irq_event(dev);
662 }
663
664 static int __i915_drm_thaw(struct drm_device *dev)
665 {
666         struct drm_i915_private *dev_priv = dev->dev_private;
667         int error = 0;
668
669         i915_restore_state(dev);
670         intel_opregion_setup(dev);
671
672         /* KMS EnterVT equivalent */
673         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
674                 intel_init_pch_refclk(dev);
675
676                 mutex_lock(&dev->struct_mutex);
677
678                 error = i915_gem_init_hw(dev);
679                 mutex_unlock(&dev->struct_mutex);
680
681                 /* We need working interrupts for modeset enabling ... */
682                 drm_irq_install(dev);
683
684                 intel_modeset_init_hw(dev);
685
686                 drm_modeset_lock_all(dev);
687                 intel_modeset_setup_hw_state(dev, true);
688                 drm_modeset_unlock_all(dev);
689
690                 /*
691                  * ... but also need to make sure that hotplug processing
692                  * doesn't cause havoc. Like in the driver load code we don't
693                  * bother with the tiny race here where we might loose hotplug
694                  * notifications.
695                  * */
696                 intel_hpd_init(dev);
697                 dev_priv->enable_hotplug_processing = true;
698                 /* Config may have changed between suspend and resume */
699                 intel_resume_hotplug(dev);
700         }
701
702         intel_opregion_init(dev);
703
704         /*
705          * The console lock can be pretty contented on resume due
706          * to all the printk activity.  Try to keep it out of the hot
707          * path of resume if possible.
708          */
709         if (console_trylock()) {
710                 intel_fbdev_set_suspend(dev, FBINFO_STATE_RUNNING);
711                 console_unlock();
712         } else {
713                 schedule_work(&dev_priv->console_resume_work);
714         }
715
716         mutex_lock(&dev_priv->modeset_restore_lock);
717         dev_priv->modeset_restore = MODESET_DONE;
718         mutex_unlock(&dev_priv->modeset_restore_lock);
719         return error;
720 }
721
722 static int i915_drm_thaw(struct drm_device *dev)
723 {
724         int error = 0;
725
726         intel_uncore_sanitize(dev);
727
728         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
729                 mutex_lock(&dev->struct_mutex);
730                 i915_gem_restore_gtt_mappings(dev);
731                 mutex_unlock(&dev->struct_mutex);
732         }
733
734         __i915_drm_thaw(dev);
735
736         return error;
737 }
738
739 int i915_resume(struct drm_device *dev)
740 {
741         struct drm_i915_private *dev_priv = dev->dev_private;
742         int ret;
743
744         if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
745                 return 0;
746
747         if (pci_enable_device(dev->pdev))
748                 return -EIO;
749
750         pci_set_master(dev->pdev);
751
752         intel_uncore_sanitize(dev);
753
754         /*
755          * Platforms with opregion should have sane BIOS, older ones (gen3 and
756          * earlier) need this since the BIOS might clear all our scratch PTEs.
757          */
758         if (drm_core_check_feature(dev, DRIVER_MODESET) &&
759             !dev_priv->opregion.header) {
760                 mutex_lock(&dev->struct_mutex);
761                 i915_gem_restore_gtt_mappings(dev);
762                 mutex_unlock(&dev->struct_mutex);
763         }
764
765         ret = __i915_drm_thaw(dev);
766         if (ret)
767                 return ret;
768
769         drm_kms_helper_poll_enable(dev);
770         return 0;
771 }
772
773 /**
774  * i915_reset - reset chip after a hang
775  * @dev: drm device to reset
776  *
777  * Reset the chip.  Useful if a hang is detected. Returns zero on successful
778  * reset or otherwise an error code.
779  *
780  * Procedure is fairly simple:
781  *   - reset the chip using the reset reg
782  *   - re-init context state
783  *   - re-init hardware status page
784  *   - re-init ring buffer
785  *   - re-init interrupt state
786  *   - re-init display
787  */
788 int i915_reset(struct drm_device *dev)
789 {
790         drm_i915_private_t *dev_priv = dev->dev_private;
791         bool simulated;
792         int ret;
793
794         if (!i915_try_reset)
795                 return 0;
796
797         mutex_lock(&dev->struct_mutex);
798
799         i915_gem_reset(dev);
800
801         simulated = dev_priv->gpu_error.stop_rings != 0;
802
803         if (!simulated && get_seconds() - dev_priv->gpu_error.last_reset < 5) {
804                 DRM_ERROR("GPU hanging too fast, declaring wedged!\n");
805                 ret = -ENODEV;
806         } else {
807                 ret = intel_gpu_reset(dev);
808
809                 /* Also reset the gpu hangman. */
810                 if (simulated) {
811                         DRM_INFO("Simulated gpu hang, resetting stop_rings\n");
812                         dev_priv->gpu_error.stop_rings = 0;
813                         if (ret == -ENODEV) {
814                                 DRM_ERROR("Reset not implemented, but ignoring "
815                                           "error for simulated gpu hangs\n");
816                                 ret = 0;
817                         }
818                 } else
819                         dev_priv->gpu_error.last_reset = get_seconds();
820         }
821         if (ret) {
822                 DRM_ERROR("Failed to reset chip.\n");
823                 mutex_unlock(&dev->struct_mutex);
824                 return ret;
825         }
826
827         /* Ok, now get things going again... */
828
829         /*
830          * Everything depends on having the GTT running, so we need to start
831          * there.  Fortunately we don't need to do this unless we reset the
832          * chip at a PCI level.
833          *
834          * Next we need to restore the context, but we don't use those
835          * yet either...
836          *
837          * Ring buffer needs to be re-initialized in the KMS case, or if X
838          * was running at the time of the reset (i.e. we weren't VT
839          * switched away).
840          */
841         if (drm_core_check_feature(dev, DRIVER_MODESET) ||
842                         !dev_priv->ums.mm_suspended) {
843                 struct intel_ring_buffer *ring;
844                 int i;
845
846                 dev_priv->ums.mm_suspended = 0;
847
848                 i915_gem_init_swizzling(dev);
849
850                 for_each_ring(ring, dev_priv, i)
851                         ring->init(ring);
852
853                 i915_gem_context_init(dev);
854                 if (dev_priv->mm.aliasing_ppgtt) {
855                         ret = dev_priv->mm.aliasing_ppgtt->enable(dev);
856                         if (ret)
857                                 i915_gem_cleanup_aliasing_ppgtt(dev);
858                 }
859
860                 /*
861                  * It would make sense to re-init all the other hw state, at
862                  * least the rps/rc6/emon init done within modeset_init_hw. For
863                  * some unknown reason, this blows up my ilk, so don't.
864                  */
865
866                 mutex_unlock(&dev->struct_mutex);
867
868                 drm_irq_uninstall(dev);
869                 drm_irq_install(dev);
870                 intel_hpd_init(dev);
871         } else {
872                 mutex_unlock(&dev->struct_mutex);
873         }
874
875         return 0;
876 }
877
878 static int i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
879 {
880         struct intel_device_info *intel_info =
881                 (struct intel_device_info *) ent->driver_data;
882
883         /* Only bind to function 0 of the device. Early generations
884          * used function 1 as a placeholder for multi-head. This causes
885          * us confusion instead, especially on the systems where both
886          * functions have the same PCI-ID!
887          */
888         if (PCI_FUNC(pdev->devfn))
889                 return -ENODEV;
890
891         /* We've managed to ship a kms-enabled ddx that shipped with an XvMC
892          * implementation for gen3 (and only gen3) that used legacy drm maps
893          * (gasp!) to share buffers between X and the client. Hence we need to
894          * keep around the fake agp stuff for gen3, even when kms is enabled. */
895         if (intel_info->gen != 3) {
896                 driver.driver_features &=
897                         ~(DRIVER_USE_AGP | DRIVER_REQUIRE_AGP);
898         } else if (!intel_agp_enabled) {
899                 DRM_ERROR("drm/i915 can't work without intel_agp module!\n");
900                 return -ENODEV;
901         }
902
903         return drm_get_pci_dev(pdev, ent, &driver);
904 }
905
906 static void
907 i915_pci_remove(struct pci_dev *pdev)
908 {
909         struct drm_device *dev = pci_get_drvdata(pdev);
910
911         drm_put_dev(dev);
912 }
913
914 static int i915_pm_suspend(struct device *dev)
915 {
916         struct pci_dev *pdev = to_pci_dev(dev);
917         struct drm_device *drm_dev = pci_get_drvdata(pdev);
918         int error;
919
920         if (!drm_dev || !drm_dev->dev_private) {
921                 dev_err(dev, "DRM not initialized, aborting suspend.\n");
922                 return -ENODEV;
923         }
924
925         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF)
926                 return 0;
927
928         error = i915_drm_freeze(drm_dev);
929         if (error)
930                 return error;
931
932         pci_disable_device(pdev);
933         pci_set_power_state(pdev, PCI_D3hot);
934
935         return 0;
936 }
937
938 static int i915_pm_resume(struct device *dev)
939 {
940         struct pci_dev *pdev = to_pci_dev(dev);
941         struct drm_device *drm_dev = pci_get_drvdata(pdev);
942
943         return i915_resume(drm_dev);
944 }
945
946 static int i915_pm_freeze(struct device *dev)
947 {
948         struct pci_dev *pdev = to_pci_dev(dev);
949         struct drm_device *drm_dev = pci_get_drvdata(pdev);
950
951         if (!drm_dev || !drm_dev->dev_private) {
952                 dev_err(dev, "DRM not initialized, aborting suspend.\n");
953                 return -ENODEV;
954         }
955
956         return i915_drm_freeze(drm_dev);
957 }
958
959 static int i915_pm_thaw(struct device *dev)
960 {
961         struct pci_dev *pdev = to_pci_dev(dev);
962         struct drm_device *drm_dev = pci_get_drvdata(pdev);
963
964         return i915_drm_thaw(drm_dev);
965 }
966
967 static int i915_pm_poweroff(struct device *dev)
968 {
969         struct pci_dev *pdev = to_pci_dev(dev);
970         struct drm_device *drm_dev = pci_get_drvdata(pdev);
971
972         return i915_drm_freeze(drm_dev);
973 }
974
975 static const struct dev_pm_ops i915_pm_ops = {
976         .suspend = i915_pm_suspend,
977         .resume = i915_pm_resume,
978         .freeze = i915_pm_freeze,
979         .thaw = i915_pm_thaw,
980         .poweroff = i915_pm_poweroff,
981         .restore = i915_pm_resume,
982 };
983
984 static const struct vm_operations_struct i915_gem_vm_ops = {
985         .fault = i915_gem_fault,
986         .open = drm_gem_vm_open,
987         .close = drm_gem_vm_close,
988 };
989
990 static const struct file_operations i915_driver_fops = {
991         .owner = THIS_MODULE,
992         .open = drm_open,
993         .release = drm_release,
994         .unlocked_ioctl = drm_ioctl,
995         .mmap = drm_gem_mmap,
996         .poll = drm_poll,
997         .fasync = drm_fasync,
998         .read = drm_read,
999 #ifdef CONFIG_COMPAT
1000         .compat_ioctl = i915_compat_ioctl,
1001 #endif
1002         .llseek = noop_llseek,
1003 };
1004
1005 static struct drm_driver driver = {
1006         /* Don't use MTRRs here; the Xserver or userspace app should
1007          * deal with them for Intel hardware.
1008          */
1009         .driver_features =
1010             DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR |*/
1011             DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM | DRIVER_PRIME,
1012         .load = i915_driver_load,
1013         .unload = i915_driver_unload,
1014         .open = i915_driver_open,
1015         .lastclose = i915_driver_lastclose,
1016         .preclose = i915_driver_preclose,
1017         .postclose = i915_driver_postclose,
1018
1019         /* Used in place of i915_pm_ops for non-DRIVER_MODESET */
1020         .suspend = i915_suspend,
1021         .resume = i915_resume,
1022
1023         .device_is_agp = i915_driver_device_is_agp,
1024         .master_create = i915_master_create,
1025         .master_destroy = i915_master_destroy,
1026 #if defined(CONFIG_DEBUG_FS)
1027         .debugfs_init = i915_debugfs_init,
1028         .debugfs_cleanup = i915_debugfs_cleanup,
1029 #endif
1030         .gem_init_object = i915_gem_init_object,
1031         .gem_free_object = i915_gem_free_object,
1032         .gem_vm_ops = &i915_gem_vm_ops,
1033
1034         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
1035         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
1036         .gem_prime_export = i915_gem_prime_export,
1037         .gem_prime_import = i915_gem_prime_import,
1038
1039         .dumb_create = i915_gem_dumb_create,
1040         .dumb_map_offset = i915_gem_mmap_gtt,
1041         .dumb_destroy = drm_gem_dumb_destroy,
1042         .ioctls = i915_ioctls,
1043         .fops = &i915_driver_fops,
1044         .name = DRIVER_NAME,
1045         .desc = DRIVER_DESC,
1046         .date = DRIVER_DATE,
1047         .major = DRIVER_MAJOR,
1048         .minor = DRIVER_MINOR,
1049         .patchlevel = DRIVER_PATCHLEVEL,
1050 };
1051
1052 static struct pci_driver i915_pci_driver = {
1053         .name = DRIVER_NAME,
1054         .id_table = pciidlist,
1055         .probe = i915_pci_probe,
1056         .remove = i915_pci_remove,
1057         .driver.pm = &i915_pm_ops,
1058 };
1059
1060 static int __init i915_init(void)
1061 {
1062         driver.num_ioctls = i915_max_ioctl;
1063
1064         /*
1065          * If CONFIG_DRM_I915_KMS is set, default to KMS unless
1066          * explicitly disabled with the module pararmeter.
1067          *
1068          * Otherwise, just follow the parameter (defaulting to off).
1069          *
1070          * Allow optional vga_text_mode_force boot option to override
1071          * the default behavior.
1072          */
1073 #if defined(CONFIG_DRM_I915_KMS)
1074         if (i915_modeset != 0)
1075                 driver.driver_features |= DRIVER_MODESET;
1076 #endif
1077         if (i915_modeset == 1)
1078                 driver.driver_features |= DRIVER_MODESET;
1079
1080 #ifdef CONFIG_VGA_CONSOLE
1081         if (vgacon_text_force() && i915_modeset == -1)
1082                 driver.driver_features &= ~DRIVER_MODESET;
1083 #endif
1084
1085         if (!(driver.driver_features & DRIVER_MODESET))
1086                 driver.get_vblank_timestamp = NULL;
1087
1088         return drm_pci_init(&driver, &i915_pci_driver);
1089 }
1090
1091 static void __exit i915_exit(void)
1092 {
1093         drm_pci_exit(&driver, &i915_pci_driver);
1094 }
1095
1096 module_init(i915_init);
1097 module_exit(i915_exit);
1098
1099 MODULE_AUTHOR(DRIVER_AUTHOR);
1100 MODULE_DESCRIPTION(DRIVER_DESC);
1101 MODULE_LICENSE("GPL and additional rights");