1 /* i915_drv.c -- i830,i845,i855,i865,i915 driver -*- linux-c -*-
5 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
16 * The above copyright notice and this permission notice (including the
17 * next paragraph) shall be included in all copies or substantial portions
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.
30 #include <linux/acpi.h>
31 #include <linux/device.h>
32 #include <linux/oom.h>
33 #include <linux/module.h>
34 #include <linux/pci.h>
36 #include <linux/pm_runtime.h>
37 #include <linux/pnp.h>
38 #include <linux/slab.h>
39 #include <linux/vgaarb.h>
40 #include <linux/vga_switcheroo.h>
42 #include <acpi/video.h>
45 #include <drm/drm_crtc_helper.h>
46 #include <drm/i915_drm.h>
49 #include "i915_trace.h"
50 #include "i915_vgpu.h"
51 #include "intel_drv.h"
53 static struct drm_driver driver
;
55 static unsigned int i915_load_fail_count
;
57 bool __i915_inject_load_failure(const char *func
, int line
)
59 if (i915_load_fail_count
>= i915
.inject_load_failure
)
62 if (++i915_load_fail_count
== i915
.inject_load_failure
) {
63 DRM_INFO("Injecting failure at checkpoint %u [%s:%d]\n",
64 i915
.inject_load_failure
, func
, line
);
71 #define FDO_BUG_URL "https://bugs.freedesktop.org/enter_bug.cgi?product=DRI"
72 #define FDO_BUG_MSG "Please file a bug at " FDO_BUG_URL " against DRM/Intel " \
73 "providing the dmesg log by booting with drm.debug=0xf"
76 __i915_printk(struct drm_i915_private
*dev_priv
, const char *level
,
79 static bool shown_bug_once
;
80 struct device
*kdev
= dev_priv
->drm
.dev
;
81 bool is_error
= level
[1] <= KERN_ERR
[1];
82 bool is_debug
= level
[1] == KERN_DEBUG
[1];
86 if (is_debug
&& !(drm_debug
& DRM_UT_DRIVER
))
94 dev_printk(level
, kdev
, "[" DRM_NAME
":%ps] %pV",
95 __builtin_return_address(0), &vaf
);
97 if (is_error
&& !shown_bug_once
) {
98 dev_notice(kdev
, "%s", FDO_BUG_MSG
);
99 shown_bug_once
= true;
105 static bool i915_error_injected(struct drm_i915_private
*dev_priv
)
107 return i915
.inject_load_failure
&&
108 i915_load_fail_count
== i915
.inject_load_failure
;
111 #define i915_load_error(dev_priv, fmt, ...) \
112 __i915_printk(dev_priv, \
113 i915_error_injected(dev_priv) ? KERN_DEBUG : KERN_ERR, \
117 static enum intel_pch
intel_virt_detect_pch(struct drm_i915_private
*dev_priv
)
119 enum intel_pch ret
= PCH_NOP
;
122 * In a virtualized passthrough environment we can be in a
123 * setup where the ISA bridge is not able to be passed through.
124 * In this case, a south bridge can be emulated and we have to
125 * make an educated guess as to which PCH is really there.
128 if (IS_GEN5(dev_priv
)) {
130 DRM_DEBUG_KMS("Assuming Ibex Peak PCH\n");
131 } else if (IS_GEN6(dev_priv
) || IS_IVYBRIDGE(dev_priv
)) {
133 DRM_DEBUG_KMS("Assuming CouarPoint PCH\n");
134 } else if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
)) {
136 DRM_DEBUG_KMS("Assuming LynxPoint PCH\n");
137 } else if (IS_SKYLAKE(dev_priv
) || IS_KABYLAKE(dev_priv
)) {
139 DRM_DEBUG_KMS("Assuming SunrisePoint PCH\n");
145 static void intel_detect_pch(struct drm_device
*dev
)
147 struct drm_i915_private
*dev_priv
= to_i915(dev
);
148 struct pci_dev
*pch
= NULL
;
150 /* In all current cases, num_pipes is equivalent to the PCH_NOP setting
151 * (which really amounts to a PCH but no South Display).
153 if (INTEL_INFO(dev
)->num_pipes
== 0) {
154 dev_priv
->pch_type
= PCH_NOP
;
159 * The reason to probe ISA bridge instead of Dev31:Fun0 is to
160 * make graphics device passthrough work easy for VMM, that only
161 * need to expose ISA bridge to let driver know the real hardware
162 * underneath. This is a requirement from virtualization team.
164 * In some virtualized environments (e.g. XEN), there is irrelevant
165 * ISA bridge in the system. To work reliably, we should scan trhough
166 * all the ISA bridge devices and check for the first match, instead
167 * of only checking the first one.
169 while ((pch
= pci_get_class(PCI_CLASS_BRIDGE_ISA
<< 8, pch
))) {
170 if (pch
->vendor
== PCI_VENDOR_ID_INTEL
) {
171 unsigned short id
= pch
->device
& INTEL_PCH_DEVICE_ID_MASK
;
172 dev_priv
->pch_id
= id
;
174 if (id
== INTEL_PCH_IBX_DEVICE_ID_TYPE
) {
175 dev_priv
->pch_type
= PCH_IBX
;
176 DRM_DEBUG_KMS("Found Ibex Peak PCH\n");
177 WARN_ON(!IS_GEN5(dev_priv
));
178 } else if (id
== INTEL_PCH_CPT_DEVICE_ID_TYPE
) {
179 dev_priv
->pch_type
= PCH_CPT
;
180 DRM_DEBUG_KMS("Found CougarPoint PCH\n");
181 WARN_ON(!(IS_GEN6(dev_priv
) ||
182 IS_IVYBRIDGE(dev_priv
)));
183 } else if (id
== INTEL_PCH_PPT_DEVICE_ID_TYPE
) {
184 /* PantherPoint is CPT compatible */
185 dev_priv
->pch_type
= PCH_CPT
;
186 DRM_DEBUG_KMS("Found PantherPoint PCH\n");
187 WARN_ON(!(IS_GEN6(dev_priv
) ||
188 IS_IVYBRIDGE(dev_priv
)));
189 } else if (id
== INTEL_PCH_LPT_DEVICE_ID_TYPE
) {
190 dev_priv
->pch_type
= PCH_LPT
;
191 DRM_DEBUG_KMS("Found LynxPoint PCH\n");
192 WARN_ON(!IS_HASWELL(dev_priv
) &&
193 !IS_BROADWELL(dev_priv
));
194 WARN_ON(IS_HSW_ULT(dev_priv
) ||
195 IS_BDW_ULT(dev_priv
));
196 } else if (id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) {
197 dev_priv
->pch_type
= PCH_LPT
;
198 DRM_DEBUG_KMS("Found LynxPoint LP PCH\n");
199 WARN_ON(!IS_HASWELL(dev_priv
) &&
200 !IS_BROADWELL(dev_priv
));
201 WARN_ON(!IS_HSW_ULT(dev_priv
) &&
202 !IS_BDW_ULT(dev_priv
));
203 } else if (id
== INTEL_PCH_SPT_DEVICE_ID_TYPE
) {
204 dev_priv
->pch_type
= PCH_SPT
;
205 DRM_DEBUG_KMS("Found SunrisePoint PCH\n");
206 WARN_ON(!IS_SKYLAKE(dev_priv
) &&
207 !IS_KABYLAKE(dev_priv
));
208 } else if (id
== INTEL_PCH_SPT_LP_DEVICE_ID_TYPE
) {
209 dev_priv
->pch_type
= PCH_SPT
;
210 DRM_DEBUG_KMS("Found SunrisePoint LP PCH\n");
211 WARN_ON(!IS_SKYLAKE(dev_priv
) &&
212 !IS_KABYLAKE(dev_priv
));
213 } else if (id
== INTEL_PCH_KBP_DEVICE_ID_TYPE
) {
214 dev_priv
->pch_type
= PCH_KBP
;
215 DRM_DEBUG_KMS("Found KabyPoint PCH\n");
216 WARN_ON(!IS_KABYLAKE(dev_priv
));
217 } else if ((id
== INTEL_PCH_P2X_DEVICE_ID_TYPE
) ||
218 (id
== INTEL_PCH_P3X_DEVICE_ID_TYPE
) ||
219 ((id
== INTEL_PCH_QEMU_DEVICE_ID_TYPE
) &&
220 pch
->subsystem_vendor
==
221 PCI_SUBVENDOR_ID_REDHAT_QUMRANET
&&
222 pch
->subsystem_device
==
223 PCI_SUBDEVICE_ID_QEMU
)) {
225 intel_virt_detect_pch(dev_priv
);
233 DRM_DEBUG_KMS("No PCH found.\n");
238 static int i915_getparam(struct drm_device
*dev
, void *data
,
239 struct drm_file
*file_priv
)
241 struct drm_i915_private
*dev_priv
= to_i915(dev
);
242 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
243 drm_i915_getparam_t
*param
= data
;
246 switch (param
->param
) {
247 case I915_PARAM_IRQ_ACTIVE
:
248 case I915_PARAM_ALLOW_BATCHBUFFER
:
249 case I915_PARAM_LAST_DISPATCH
:
250 /* Reject all old ums/dri params. */
252 case I915_PARAM_CHIPSET_ID
:
253 value
= pdev
->device
;
255 case I915_PARAM_REVISION
:
256 value
= pdev
->revision
;
258 case I915_PARAM_NUM_FENCES_AVAIL
:
259 value
= dev_priv
->num_fence_regs
;
261 case I915_PARAM_HAS_OVERLAY
:
262 value
= dev_priv
->overlay
? 1 : 0;
264 case I915_PARAM_HAS_BSD
:
265 value
= !!dev_priv
->engine
[VCS
];
267 case I915_PARAM_HAS_BLT
:
268 value
= !!dev_priv
->engine
[BCS
];
270 case I915_PARAM_HAS_VEBOX
:
271 value
= !!dev_priv
->engine
[VECS
];
273 case I915_PARAM_HAS_BSD2
:
274 value
= !!dev_priv
->engine
[VCS2
];
276 case I915_PARAM_HAS_EXEC_CONSTANTS
:
277 value
= INTEL_GEN(dev_priv
) >= 4;
279 case I915_PARAM_HAS_LLC
:
280 value
= HAS_LLC(dev_priv
);
282 case I915_PARAM_HAS_WT
:
283 value
= HAS_WT(dev_priv
);
285 case I915_PARAM_HAS_ALIASING_PPGTT
:
286 value
= USES_PPGTT(dev_priv
);
288 case I915_PARAM_HAS_SEMAPHORES
:
289 value
= i915
.semaphores
;
291 case I915_PARAM_HAS_SECURE_BATCHES
:
292 value
= capable(CAP_SYS_ADMIN
);
294 case I915_PARAM_CMD_PARSER_VERSION
:
295 value
= i915_cmd_parser_get_version(dev_priv
);
297 case I915_PARAM_SUBSLICE_TOTAL
:
298 value
= sseu_subslice_total(&INTEL_INFO(dev_priv
)->sseu
);
302 case I915_PARAM_EU_TOTAL
:
303 value
= INTEL_INFO(dev_priv
)->sseu
.eu_total
;
307 case I915_PARAM_HAS_GPU_RESET
:
308 value
= i915
.enable_hangcheck
&& intel_has_gpu_reset(dev_priv
);
310 case I915_PARAM_HAS_RESOURCE_STREAMER
:
311 value
= HAS_RESOURCE_STREAMER(dev_priv
);
313 case I915_PARAM_HAS_POOLED_EU
:
314 value
= HAS_POOLED_EU(dev_priv
);
316 case I915_PARAM_MIN_EU_IN_POOL
:
317 value
= INTEL_INFO(dev_priv
)->sseu
.min_eu_in_pool
;
319 case I915_PARAM_MMAP_GTT_VERSION
:
320 /* Though we've started our numbering from 1, and so class all
321 * earlier versions as 0, in effect their value is undefined as
322 * the ioctl will report EINVAL for the unknown param!
324 value
= i915_gem_mmap_gtt_version();
326 case I915_PARAM_MMAP_VERSION
:
327 /* Remember to bump this if the version changes! */
328 case I915_PARAM_HAS_GEM
:
329 case I915_PARAM_HAS_PAGEFLIPPING
:
330 case I915_PARAM_HAS_EXECBUF2
: /* depends on GEM */
331 case I915_PARAM_HAS_RELAXED_FENCING
:
332 case I915_PARAM_HAS_COHERENT_RINGS
:
333 case I915_PARAM_HAS_RELAXED_DELTA
:
334 case I915_PARAM_HAS_GEN7_SOL_RESET
:
335 case I915_PARAM_HAS_WAIT_TIMEOUT
:
336 case I915_PARAM_HAS_PRIME_VMAP_FLUSH
:
337 case I915_PARAM_HAS_PINNED_BATCHES
:
338 case I915_PARAM_HAS_EXEC_NO_RELOC
:
339 case I915_PARAM_HAS_EXEC_HANDLE_LUT
:
340 case I915_PARAM_HAS_COHERENT_PHYS_GTT
:
341 case I915_PARAM_HAS_EXEC_SOFTPIN
:
342 /* For the time being all of these are always true;
343 * if some supported hardware does not have one of these
344 * features this value needs to be provided from
345 * INTEL_INFO(), a feature macro, or similar.
350 DRM_DEBUG("Unknown parameter %d\n", param
->param
);
354 if (put_user(value
, param
->value
))
360 static int i915_get_bridge_dev(struct drm_device
*dev
)
362 struct drm_i915_private
*dev_priv
= to_i915(dev
);
364 dev_priv
->bridge_dev
= pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
365 if (!dev_priv
->bridge_dev
) {
366 DRM_ERROR("bridge device not found\n");
372 /* Allocate space for the MCH regs if needed, return nonzero on error */
374 intel_alloc_mchbar_resource(struct drm_device
*dev
)
376 struct drm_i915_private
*dev_priv
= to_i915(dev
);
377 int reg
= INTEL_INFO(dev
)->gen
>= 4 ? MCHBAR_I965
: MCHBAR_I915
;
378 u32 temp_lo
, temp_hi
= 0;
382 if (INTEL_INFO(dev
)->gen
>= 4)
383 pci_read_config_dword(dev_priv
->bridge_dev
, reg
+ 4, &temp_hi
);
384 pci_read_config_dword(dev_priv
->bridge_dev
, reg
, &temp_lo
);
385 mchbar_addr
= ((u64
)temp_hi
<< 32) | temp_lo
;
387 /* If ACPI doesn't have it, assume we need to allocate it ourselves */
390 pnp_range_reserved(mchbar_addr
, mchbar_addr
+ MCHBAR_SIZE
))
394 /* Get some space for it */
395 dev_priv
->mch_res
.name
= "i915 MCHBAR";
396 dev_priv
->mch_res
.flags
= IORESOURCE_MEM
;
397 ret
= pci_bus_alloc_resource(dev_priv
->bridge_dev
->bus
,
399 MCHBAR_SIZE
, MCHBAR_SIZE
,
401 0, pcibios_align_resource
,
402 dev_priv
->bridge_dev
);
404 DRM_DEBUG_DRIVER("failed bus alloc: %d\n", ret
);
405 dev_priv
->mch_res
.start
= 0;
409 if (INTEL_INFO(dev
)->gen
>= 4)
410 pci_write_config_dword(dev_priv
->bridge_dev
, reg
+ 4,
411 upper_32_bits(dev_priv
->mch_res
.start
));
413 pci_write_config_dword(dev_priv
->bridge_dev
, reg
,
414 lower_32_bits(dev_priv
->mch_res
.start
));
418 /* Setup MCHBAR if possible, return true if we should disable it again */
420 intel_setup_mchbar(struct drm_device
*dev
)
422 struct drm_i915_private
*dev_priv
= to_i915(dev
);
423 int mchbar_reg
= INTEL_INFO(dev
)->gen
>= 4 ? MCHBAR_I965
: MCHBAR_I915
;
427 if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
430 dev_priv
->mchbar_need_disable
= false;
432 if (IS_I915G(dev_priv
) || IS_I915GM(dev_priv
)) {
433 pci_read_config_dword(dev_priv
->bridge_dev
, DEVEN
, &temp
);
434 enabled
= !!(temp
& DEVEN_MCHBAR_EN
);
436 pci_read_config_dword(dev_priv
->bridge_dev
, mchbar_reg
, &temp
);
440 /* If it's already enabled, don't have to do anything */
444 if (intel_alloc_mchbar_resource(dev
))
447 dev_priv
->mchbar_need_disable
= true;
449 /* Space is allocated or reserved, so enable it. */
450 if (IS_I915G(dev_priv
) || IS_I915GM(dev_priv
)) {
451 pci_write_config_dword(dev_priv
->bridge_dev
, DEVEN
,
452 temp
| DEVEN_MCHBAR_EN
);
454 pci_read_config_dword(dev_priv
->bridge_dev
, mchbar_reg
, &temp
);
455 pci_write_config_dword(dev_priv
->bridge_dev
, mchbar_reg
, temp
| 1);
460 intel_teardown_mchbar(struct drm_device
*dev
)
462 struct drm_i915_private
*dev_priv
= to_i915(dev
);
463 int mchbar_reg
= INTEL_INFO(dev
)->gen
>= 4 ? MCHBAR_I965
: MCHBAR_I915
;
465 if (dev_priv
->mchbar_need_disable
) {
466 if (IS_I915G(dev_priv
) || IS_I915GM(dev_priv
)) {
469 pci_read_config_dword(dev_priv
->bridge_dev
, DEVEN
,
471 deven_val
&= ~DEVEN_MCHBAR_EN
;
472 pci_write_config_dword(dev_priv
->bridge_dev
, DEVEN
,
477 pci_read_config_dword(dev_priv
->bridge_dev
, mchbar_reg
,
480 pci_write_config_dword(dev_priv
->bridge_dev
, mchbar_reg
,
485 if (dev_priv
->mch_res
.start
)
486 release_resource(&dev_priv
->mch_res
);
489 /* true = enable decode, false = disable decoder */
490 static unsigned int i915_vga_set_decode(void *cookie
, bool state
)
492 struct drm_device
*dev
= cookie
;
494 intel_modeset_vga_set_state(dev
, state
);
496 return VGA_RSRC_LEGACY_IO
| VGA_RSRC_LEGACY_MEM
|
497 VGA_RSRC_NORMAL_IO
| VGA_RSRC_NORMAL_MEM
;
499 return VGA_RSRC_NORMAL_IO
| VGA_RSRC_NORMAL_MEM
;
502 static void i915_switcheroo_set_state(struct pci_dev
*pdev
, enum vga_switcheroo_state state
)
504 struct drm_device
*dev
= pci_get_drvdata(pdev
);
505 pm_message_t pmm
= { .event
= PM_EVENT_SUSPEND
};
507 if (state
== VGA_SWITCHEROO_ON
) {
508 pr_info("switched on\n");
509 dev
->switch_power_state
= DRM_SWITCH_POWER_CHANGING
;
510 /* i915 resume handler doesn't set to D0 */
511 pci_set_power_state(pdev
, PCI_D0
);
512 i915_resume_switcheroo(dev
);
513 dev
->switch_power_state
= DRM_SWITCH_POWER_ON
;
515 pr_info("switched off\n");
516 dev
->switch_power_state
= DRM_SWITCH_POWER_CHANGING
;
517 i915_suspend_switcheroo(dev
, pmm
);
518 dev
->switch_power_state
= DRM_SWITCH_POWER_OFF
;
522 static bool i915_switcheroo_can_switch(struct pci_dev
*pdev
)
524 struct drm_device
*dev
= pci_get_drvdata(pdev
);
527 * FIXME: open_count is protected by drm_global_mutex but that would lead to
528 * locking inversion with the driver load path. And the access here is
529 * completely racy anyway. So don't bother with locking for now.
531 return dev
->open_count
== 0;
534 static const struct vga_switcheroo_client_ops i915_switcheroo_ops
= {
535 .set_gpu_state
= i915_switcheroo_set_state
,
537 .can_switch
= i915_switcheroo_can_switch
,
540 static void i915_gem_fini(struct drm_i915_private
*dev_priv
)
542 mutex_lock(&dev_priv
->drm
.struct_mutex
);
543 i915_gem_cleanup_engines(&dev_priv
->drm
);
544 i915_gem_context_fini(&dev_priv
->drm
);
545 mutex_unlock(&dev_priv
->drm
.struct_mutex
);
548 flush_work(&dev_priv
->mm
.free_work
);
550 WARN_ON(!list_empty(&dev_priv
->context_list
));
553 static int i915_load_modeset_init(struct drm_device
*dev
)
555 struct drm_i915_private
*dev_priv
= to_i915(dev
);
556 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
559 if (i915_inject_load_failure())
562 ret
= intel_bios_init(dev_priv
);
564 DRM_INFO("failed to find VBIOS tables\n");
566 /* If we have > 1 VGA cards, then we need to arbitrate access
567 * to the common VGA resources.
569 * If we are a secondary display controller (!PCI_DISPLAY_CLASS_VGA),
570 * then we do not take part in VGA arbitration and the
571 * vga_client_register() fails with -ENODEV.
573 ret
= vga_client_register(pdev
, dev
, NULL
, i915_vga_set_decode
);
574 if (ret
&& ret
!= -ENODEV
)
577 intel_register_dsm_handler();
579 ret
= vga_switcheroo_register_client(pdev
, &i915_switcheroo_ops
, false);
581 goto cleanup_vga_client
;
583 /* must happen before intel_power_domains_init_hw() on VLV/CHV */
584 intel_update_rawclk(dev_priv
);
586 intel_power_domains_init_hw(dev_priv
, false);
588 intel_csr_ucode_init(dev_priv
);
590 ret
= intel_irq_install(dev_priv
);
594 intel_setup_gmbus(dev
);
596 /* Important: The output setup functions called by modeset_init need
597 * working irqs for e.g. gmbus and dp aux transfers. */
598 ret
= intel_modeset_init(dev
);
604 ret
= i915_gem_init(dev
);
608 intel_modeset_gem_init(dev
);
610 if (INTEL_INFO(dev
)->num_pipes
== 0)
613 ret
= intel_fbdev_init(dev
);
617 /* Only enable hotplug handling once the fbdev is fully set up. */
618 intel_hpd_init(dev_priv
);
620 drm_kms_helper_poll_init(dev
);
625 if (i915_gem_suspend(dev
))
626 DRM_ERROR("failed to idle hardware; continuing to unload!\n");
627 i915_gem_fini(dev_priv
);
630 drm_irq_uninstall(dev
);
631 intel_teardown_gmbus(dev
);
633 intel_csr_ucode_fini(dev_priv
);
634 intel_power_domains_fini(dev_priv
);
635 vga_switcheroo_unregister_client(pdev
);
637 vga_client_register(pdev
, NULL
, NULL
, NULL
);
642 #if IS_ENABLED(CONFIG_FB)
643 static int i915_kick_out_firmware_fb(struct drm_i915_private
*dev_priv
)
645 struct apertures_struct
*ap
;
646 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
647 struct i915_ggtt
*ggtt
= &dev_priv
->ggtt
;
651 ap
= alloc_apertures(1);
655 ap
->ranges
[0].base
= ggtt
->mappable_base
;
656 ap
->ranges
[0].size
= ggtt
->mappable_end
;
659 pdev
->resource
[PCI_ROM_RESOURCE
].flags
& IORESOURCE_ROM_SHADOW
;
661 ret
= drm_fb_helper_remove_conflicting_framebuffers(ap
, "inteldrmfb", primary
);
668 static int i915_kick_out_firmware_fb(struct drm_i915_private
*dev_priv
)
674 #if !defined(CONFIG_VGA_CONSOLE)
675 static int i915_kick_out_vgacon(struct drm_i915_private
*dev_priv
)
679 #elif !defined(CONFIG_DUMMY_CONSOLE)
680 static int i915_kick_out_vgacon(struct drm_i915_private
*dev_priv
)
685 static int i915_kick_out_vgacon(struct drm_i915_private
*dev_priv
)
689 DRM_INFO("Replacing VGA console driver\n");
692 if (con_is_bound(&vga_con
))
693 ret
= do_take_over_console(&dummy_con
, 0, MAX_NR_CONSOLES
- 1, 1);
695 ret
= do_unregister_con_driver(&vga_con
);
697 /* Ignore "already unregistered". */
707 static void intel_init_dpio(struct drm_i915_private
*dev_priv
)
710 * IOSF_PORT_DPIO is used for VLV x2 PHY (DP/HDMI B and C),
711 * CHV x1 PHY (DP/HDMI D)
712 * IOSF_PORT_DPIO_2 is used for CHV x2 PHY (DP/HDMI B and C)
714 if (IS_CHERRYVIEW(dev_priv
)) {
715 DPIO_PHY_IOSF_PORT(DPIO_PHY0
) = IOSF_PORT_DPIO_2
;
716 DPIO_PHY_IOSF_PORT(DPIO_PHY1
) = IOSF_PORT_DPIO
;
717 } else if (IS_VALLEYVIEW(dev_priv
)) {
718 DPIO_PHY_IOSF_PORT(DPIO_PHY0
) = IOSF_PORT_DPIO
;
722 static int i915_workqueues_init(struct drm_i915_private
*dev_priv
)
725 * The i915 workqueue is primarily used for batched retirement of
726 * requests (and thus managing bo) once the task has been completed
727 * by the GPU. i915_gem_retire_requests() is called directly when we
728 * need high-priority retirement, such as waiting for an explicit
731 * It is also used for periodic low-priority events, such as
732 * idle-timers and recording error state.
734 * All tasks on the workqueue are expected to acquire the dev mutex
735 * so there is no point in running more than one instance of the
736 * workqueue at any time. Use an ordered one.
738 dev_priv
->wq
= alloc_ordered_workqueue("i915", 0);
739 if (dev_priv
->wq
== NULL
)
742 dev_priv
->hotplug
.dp_wq
= alloc_ordered_workqueue("i915-dp", 0);
743 if (dev_priv
->hotplug
.dp_wq
== NULL
)
749 destroy_workqueue(dev_priv
->wq
);
751 DRM_ERROR("Failed to allocate workqueues.\n");
756 static void i915_workqueues_cleanup(struct drm_i915_private
*dev_priv
)
758 destroy_workqueue(dev_priv
->hotplug
.dp_wq
);
759 destroy_workqueue(dev_priv
->wq
);
763 * We don't keep the workarounds for pre-production hardware, so we expect our
764 * driver to fail on these machines in one way or another. A little warning on
765 * dmesg may help both the user and the bug triagers.
767 static void intel_detect_preproduction_hw(struct drm_i915_private
*dev_priv
)
769 if (IS_HSW_EARLY_SDV(dev_priv
) ||
770 IS_SKL_REVID(dev_priv
, 0, SKL_REVID_F0
))
771 DRM_ERROR("This is a pre-production stepping. "
772 "It may not be fully functional.\n");
776 * i915_driver_init_early - setup state not requiring device access
777 * @dev_priv: device private
779 * Initialize everything that is a "SW-only" state, that is state not
780 * requiring accessing the device or exposing the driver via kernel internal
781 * or userspace interfaces. Example steps belonging here: lock initialization,
782 * system memory allocation, setting up device specific attributes and
783 * function hooks not requiring accessing the device.
785 static int i915_driver_init_early(struct drm_i915_private
*dev_priv
,
786 const struct pci_device_id
*ent
)
788 const struct intel_device_info
*match_info
=
789 (struct intel_device_info
*)ent
->driver_data
;
790 struct intel_device_info
*device_info
;
793 if (i915_inject_load_failure())
796 /* Setup the write-once "constant" device info */
797 device_info
= mkwrite_device_info(dev_priv
);
798 memcpy(device_info
, match_info
, sizeof(*device_info
));
799 device_info
->device_id
= dev_priv
->drm
.pdev
->device
;
801 BUG_ON(device_info
->gen
> sizeof(device_info
->gen_mask
) * BITS_PER_BYTE
);
802 device_info
->gen_mask
= BIT(device_info
->gen
- 1);
804 spin_lock_init(&dev_priv
->irq_lock
);
805 spin_lock_init(&dev_priv
->gpu_error
.lock
);
806 mutex_init(&dev_priv
->backlight_lock
);
807 spin_lock_init(&dev_priv
->uncore
.lock
);
808 spin_lock_init(&dev_priv
->mm
.object_stat_lock
);
809 spin_lock_init(&dev_priv
->mmio_flip_lock
);
810 mutex_init(&dev_priv
->sb_lock
);
811 mutex_init(&dev_priv
->modeset_restore_lock
);
812 mutex_init(&dev_priv
->av_mutex
);
813 mutex_init(&dev_priv
->wm
.wm_mutex
);
814 mutex_init(&dev_priv
->pps_mutex
);
816 i915_memcpy_init_early(dev_priv
);
818 ret
= i915_workqueues_init(dev_priv
);
822 ret
= intel_gvt_init(dev_priv
);
826 /* This must be called before any calls to HAS_PCH_* */
827 intel_detect_pch(&dev_priv
->drm
);
829 intel_pm_setup(&dev_priv
->drm
);
830 intel_init_dpio(dev_priv
);
831 intel_power_domains_init(dev_priv
);
832 intel_irq_init(dev_priv
);
833 intel_hangcheck_init(dev_priv
);
834 intel_init_display_hooks(dev_priv
);
835 intel_init_clock_gating_hooks(dev_priv
);
836 intel_init_audio_hooks(dev_priv
);
837 ret
= i915_gem_load_init(&dev_priv
->drm
);
841 intel_display_crc_init(dev_priv
);
843 intel_device_info_dump(dev_priv
);
845 intel_detect_preproduction_hw(dev_priv
);
850 intel_gvt_cleanup(dev_priv
);
852 i915_workqueues_cleanup(dev_priv
);
857 * i915_driver_cleanup_early - cleanup the setup done in i915_driver_init_early()
858 * @dev_priv: device private
860 static void i915_driver_cleanup_early(struct drm_i915_private
*dev_priv
)
862 i915_gem_load_cleanup(&dev_priv
->drm
);
863 i915_workqueues_cleanup(dev_priv
);
866 static int i915_mmio_setup(struct drm_device
*dev
)
868 struct drm_i915_private
*dev_priv
= to_i915(dev
);
869 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
873 mmio_bar
= IS_GEN2(dev_priv
) ? 1 : 0;
875 * Before gen4, the registers and the GTT are behind different BARs.
876 * However, from gen4 onwards, the registers and the GTT are shared
877 * in the same BAR, so we want to restrict this ioremap from
878 * clobbering the GTT which we want ioremap_wc instead. Fortunately,
879 * the register BAR remains the same size for all the earlier
880 * generations up to Ironlake.
882 if (INTEL_INFO(dev
)->gen
< 5)
883 mmio_size
= 512 * 1024;
885 mmio_size
= 2 * 1024 * 1024;
886 dev_priv
->regs
= pci_iomap(pdev
, mmio_bar
, mmio_size
);
887 if (dev_priv
->regs
== NULL
) {
888 DRM_ERROR("failed to map registers\n");
893 /* Try to make sure MCHBAR is enabled before poking at it */
894 intel_setup_mchbar(dev
);
899 static void i915_mmio_cleanup(struct drm_device
*dev
)
901 struct drm_i915_private
*dev_priv
= to_i915(dev
);
902 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
904 intel_teardown_mchbar(dev
);
905 pci_iounmap(pdev
, dev_priv
->regs
);
909 * i915_driver_init_mmio - setup device MMIO
910 * @dev_priv: device private
912 * Setup minimal device state necessary for MMIO accesses later in the
913 * initialization sequence. The setup here should avoid any other device-wide
914 * side effects or exposing the driver via kernel internal or user space
917 static int i915_driver_init_mmio(struct drm_i915_private
*dev_priv
)
919 struct drm_device
*dev
= &dev_priv
->drm
;
922 if (i915_inject_load_failure())
925 if (i915_get_bridge_dev(dev
))
928 ret
= i915_mmio_setup(dev
);
932 intel_uncore_init(dev_priv
);
937 pci_dev_put(dev_priv
->bridge_dev
);
943 * i915_driver_cleanup_mmio - cleanup the setup done in i915_driver_init_mmio()
944 * @dev_priv: device private
946 static void i915_driver_cleanup_mmio(struct drm_i915_private
*dev_priv
)
948 struct drm_device
*dev
= &dev_priv
->drm
;
950 intel_uncore_fini(dev_priv
);
951 i915_mmio_cleanup(dev
);
952 pci_dev_put(dev_priv
->bridge_dev
);
955 static void intel_sanitize_options(struct drm_i915_private
*dev_priv
)
957 i915
.enable_execlists
=
958 intel_sanitize_enable_execlists(dev_priv
,
959 i915
.enable_execlists
);
962 * i915.enable_ppgtt is read-only, so do an early pass to validate the
963 * user's requested state against the hardware/driver capabilities. We
964 * do this now so that we can print out any log messages once rather
965 * than every time we check intel_enable_ppgtt().
968 intel_sanitize_enable_ppgtt(dev_priv
, i915
.enable_ppgtt
);
969 DRM_DEBUG_DRIVER("ppgtt mode: %i\n", i915
.enable_ppgtt
);
971 i915
.semaphores
= intel_sanitize_semaphores(dev_priv
, i915
.semaphores
);
972 DRM_DEBUG_DRIVER("use GPU sempahores? %s\n", yesno(i915
.semaphores
));
976 * i915_driver_init_hw - setup state requiring device access
977 * @dev_priv: device private
979 * Setup state that requires accessing the device, but doesn't require
980 * exposing the driver via kernel internal or userspace interfaces.
982 static int i915_driver_init_hw(struct drm_i915_private
*dev_priv
)
984 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
987 if (i915_inject_load_failure())
990 intel_device_info_runtime_init(dev_priv
);
992 intel_sanitize_options(dev_priv
);
994 ret
= i915_ggtt_probe_hw(dev_priv
);
998 /* WARNING: Apparently we must kick fbdev drivers before vgacon,
999 * otherwise the vga fbdev driver falls over. */
1000 ret
= i915_kick_out_firmware_fb(dev_priv
);
1002 DRM_ERROR("failed to remove conflicting framebuffer drivers\n");
1006 ret
= i915_kick_out_vgacon(dev_priv
);
1008 DRM_ERROR("failed to remove conflicting VGA console\n");
1012 ret
= i915_ggtt_init_hw(dev_priv
);
1016 ret
= i915_ggtt_enable_hw(dev_priv
);
1018 DRM_ERROR("failed to enable GGTT\n");
1022 pci_set_master(pdev
);
1024 /* overlay on gen2 is broken and can't address above 1G */
1025 if (IS_GEN2(dev_priv
)) {
1026 ret
= dma_set_coherent_mask(&pdev
->dev
, DMA_BIT_MASK(30));
1028 DRM_ERROR("failed to set DMA mask\n");
1034 /* 965GM sometimes incorrectly writes to hardware status page (HWS)
1035 * using 32bit addressing, overwriting memory if HWS is located
1038 * The documentation also mentions an issue with undefined
1039 * behaviour if any general state is accessed within a page above 4GB,
1040 * which also needs to be handled carefully.
1042 if (IS_BROADWATER(dev_priv
) || IS_CRESTLINE(dev_priv
)) {
1043 ret
= dma_set_coherent_mask(&pdev
->dev
, DMA_BIT_MASK(32));
1046 DRM_ERROR("failed to set DMA mask\n");
1052 pm_qos_add_request(&dev_priv
->pm_qos
, PM_QOS_CPU_DMA_LATENCY
,
1053 PM_QOS_DEFAULT_VALUE
);
1055 intel_uncore_sanitize(dev_priv
);
1057 intel_opregion_setup(dev_priv
);
1059 i915_gem_load_init_fences(dev_priv
);
1061 /* On the 945G/GM, the chipset reports the MSI capability on the
1062 * integrated graphics even though the support isn't actually there
1063 * according to the published specs. It doesn't appear to function
1064 * correctly in testing on 945G.
1065 * This may be a side effect of MSI having been made available for PEG
1066 * and the registers being closely associated.
1068 * According to chipset errata, on the 965GM, MSI interrupts may
1069 * be lost or delayed, but we use them anyways to avoid
1070 * stuck interrupts on some machines.
1072 if (!IS_I945G(dev_priv
) && !IS_I945GM(dev_priv
)) {
1073 if (pci_enable_msi(pdev
) < 0)
1074 DRM_DEBUG_DRIVER("can't enable MSI");
1080 i915_ggtt_cleanup_hw(dev_priv
);
1086 * i915_driver_cleanup_hw - cleanup the setup done in i915_driver_init_hw()
1087 * @dev_priv: device private
1089 static void i915_driver_cleanup_hw(struct drm_i915_private
*dev_priv
)
1091 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
1093 if (pdev
->msi_enabled
)
1094 pci_disable_msi(pdev
);
1096 pm_qos_remove_request(&dev_priv
->pm_qos
);
1097 i915_ggtt_cleanup_hw(dev_priv
);
1101 * i915_driver_register - register the driver with the rest of the system
1102 * @dev_priv: device private
1104 * Perform any steps necessary to make the driver available via kernel
1105 * internal or userspace interfaces.
1107 static void i915_driver_register(struct drm_i915_private
*dev_priv
)
1109 struct drm_device
*dev
= &dev_priv
->drm
;
1111 i915_gem_shrinker_init(dev_priv
);
1114 * Notify a valid surface after modesetting,
1115 * when running inside a VM.
1117 if (intel_vgpu_active(dev_priv
))
1118 I915_WRITE(vgtif_reg(display_ready
), VGT_DRV_DISPLAY_READY
);
1120 /* Reveal our presence to userspace */
1121 if (drm_dev_register(dev
, 0) == 0) {
1122 i915_debugfs_register(dev_priv
);
1123 i915_guc_register(dev_priv
);
1124 i915_setup_sysfs(dev_priv
);
1126 DRM_ERROR("Failed to register driver for userspace access!\n");
1128 if (INTEL_INFO(dev_priv
)->num_pipes
) {
1129 /* Must be done after probing outputs */
1130 intel_opregion_register(dev_priv
);
1131 acpi_video_register();
1134 if (IS_GEN5(dev_priv
))
1135 intel_gpu_ips_init(dev_priv
);
1137 i915_audio_component_init(dev_priv
);
1140 * Some ports require correctly set-up hpd registers for detection to
1141 * work properly (leading to ghost connected connector status), e.g. VGA
1142 * on gm45. Hence we can only set up the initial fbdev config after hpd
1143 * irqs are fully enabled. We do it last so that the async config
1144 * cannot run before the connectors are registered.
1146 intel_fbdev_initial_config_async(dev
);
1150 * i915_driver_unregister - cleanup the registration done in i915_driver_regiser()
1151 * @dev_priv: device private
1153 static void i915_driver_unregister(struct drm_i915_private
*dev_priv
)
1155 i915_audio_component_cleanup(dev_priv
);
1157 intel_gpu_ips_teardown();
1158 acpi_video_unregister();
1159 intel_opregion_unregister(dev_priv
);
1161 i915_teardown_sysfs(dev_priv
);
1162 i915_guc_unregister(dev_priv
);
1163 i915_debugfs_unregister(dev_priv
);
1164 drm_dev_unregister(&dev_priv
->drm
);
1166 i915_gem_shrinker_cleanup(dev_priv
);
1170 * i915_driver_load - setup chip and create an initial config
1172 * @flags: startup flags
1174 * The driver load routine has to do several things:
1175 * - drive output discovery via intel_modeset_init()
1176 * - initialize the memory manager
1177 * - allocate initial config memory
1178 * - setup the DRM framebuffer with the allocated memory
1180 int i915_driver_load(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
1182 struct drm_i915_private
*dev_priv
;
1185 if (i915
.nuclear_pageflip
)
1186 driver
.driver_features
|= DRIVER_ATOMIC
;
1189 dev_priv
= kzalloc(sizeof(*dev_priv
), GFP_KERNEL
);
1191 ret
= drm_dev_init(&dev_priv
->drm
, &driver
, &pdev
->dev
);
1193 dev_printk(KERN_ERR
, &pdev
->dev
,
1194 "[" DRM_NAME
":%s] allocation failed\n", __func__
);
1199 dev_priv
->drm
.pdev
= pdev
;
1200 dev_priv
->drm
.dev_private
= dev_priv
;
1202 ret
= pci_enable_device(pdev
);
1206 pci_set_drvdata(pdev
, &dev_priv
->drm
);
1208 ret
= i915_driver_init_early(dev_priv
, ent
);
1210 goto out_pci_disable
;
1212 intel_runtime_pm_get(dev_priv
);
1214 ret
= i915_driver_init_mmio(dev_priv
);
1216 goto out_runtime_pm_put
;
1218 ret
= i915_driver_init_hw(dev_priv
);
1220 goto out_cleanup_mmio
;
1223 * TODO: move the vblank init and parts of modeset init steps into one
1224 * of the i915_driver_init_/i915_driver_register functions according
1225 * to the role/effect of the given init step.
1227 if (INTEL_INFO(dev_priv
)->num_pipes
) {
1228 ret
= drm_vblank_init(&dev_priv
->drm
,
1229 INTEL_INFO(dev_priv
)->num_pipes
);
1231 goto out_cleanup_hw
;
1234 ret
= i915_load_modeset_init(&dev_priv
->drm
);
1236 goto out_cleanup_vblank
;
1238 i915_driver_register(dev_priv
);
1240 intel_runtime_pm_enable(dev_priv
);
1242 /* Everything is in place, we can now relax! */
1243 DRM_INFO("Initialized %s %d.%d.%d %s for %s on minor %d\n",
1244 driver
.name
, driver
.major
, driver
.minor
, driver
.patchlevel
,
1245 driver
.date
, pci_name(pdev
), dev_priv
->drm
.primary
->index
);
1246 if (IS_ENABLED(CONFIG_DRM_I915_DEBUG
))
1247 DRM_INFO("DRM_I915_DEBUG enabled\n");
1248 if (IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM
))
1249 DRM_INFO("DRM_I915_DEBUG_GEM enabled\n");
1251 intel_runtime_pm_put(dev_priv
);
1256 drm_vblank_cleanup(&dev_priv
->drm
);
1258 i915_driver_cleanup_hw(dev_priv
);
1260 i915_driver_cleanup_mmio(dev_priv
);
1262 intel_runtime_pm_put(dev_priv
);
1263 i915_driver_cleanup_early(dev_priv
);
1265 pci_disable_device(pdev
);
1267 i915_load_error(dev_priv
, "Device initialization failed (%d)\n", ret
);
1268 drm_dev_unref(&dev_priv
->drm
);
1272 void i915_driver_unload(struct drm_device
*dev
)
1274 struct drm_i915_private
*dev_priv
= to_i915(dev
);
1275 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
1277 intel_fbdev_fini(dev
);
1279 if (i915_gem_suspend(dev
))
1280 DRM_ERROR("failed to idle hardware; continuing to unload!\n");
1282 intel_display_power_get(dev_priv
, POWER_DOMAIN_INIT
);
1284 i915_driver_unregister(dev_priv
);
1286 drm_vblank_cleanup(dev
);
1288 intel_modeset_cleanup(dev
);
1291 * free the memory space allocated for the child device
1292 * config parsed from VBT
1294 if (dev_priv
->vbt
.child_dev
&& dev_priv
->vbt
.child_dev_num
) {
1295 kfree(dev_priv
->vbt
.child_dev
);
1296 dev_priv
->vbt
.child_dev
= NULL
;
1297 dev_priv
->vbt
.child_dev_num
= 0;
1299 kfree(dev_priv
->vbt
.sdvo_lvds_vbt_mode
);
1300 dev_priv
->vbt
.sdvo_lvds_vbt_mode
= NULL
;
1301 kfree(dev_priv
->vbt
.lfp_lvds_vbt_mode
);
1302 dev_priv
->vbt
.lfp_lvds_vbt_mode
= NULL
;
1304 vga_switcheroo_unregister_client(pdev
);
1305 vga_client_register(pdev
, NULL
, NULL
, NULL
);
1307 intel_csr_ucode_fini(dev_priv
);
1309 /* Free error state after interrupts are fully disabled. */
1310 cancel_delayed_work_sync(&dev_priv
->gpu_error
.hangcheck_work
);
1311 i915_destroy_error_state(dev
);
1313 /* Flush any outstanding unpin_work. */
1314 drain_workqueue(dev_priv
->wq
);
1316 intel_guc_fini(dev
);
1317 i915_gem_fini(dev_priv
);
1318 intel_fbc_cleanup_cfb(dev_priv
);
1320 intel_power_domains_fini(dev_priv
);
1322 i915_driver_cleanup_hw(dev_priv
);
1323 i915_driver_cleanup_mmio(dev_priv
);
1325 intel_display_power_put(dev_priv
, POWER_DOMAIN_INIT
);
1327 i915_driver_cleanup_early(dev_priv
);
1330 static int i915_driver_open(struct drm_device
*dev
, struct drm_file
*file
)
1334 ret
= i915_gem_open(dev
, file
);
1342 * i915_driver_lastclose - clean up after all DRM clients have exited
1345 * Take care of cleaning up after all DRM clients have exited. In the
1346 * mode setting case, we want to restore the kernel's initial mode (just
1347 * in case the last client left us in a bad state).
1349 * Additionally, in the non-mode setting case, we'll tear down the GTT
1350 * and DMA structures, since the kernel won't be using them, and clea
1353 static void i915_driver_lastclose(struct drm_device
*dev
)
1355 intel_fbdev_restore_mode(dev
);
1356 vga_switcheroo_process_delayed_switch();
1359 static void i915_driver_preclose(struct drm_device
*dev
, struct drm_file
*file
)
1361 mutex_lock(&dev
->struct_mutex
);
1362 i915_gem_context_close(dev
, file
);
1363 i915_gem_release(dev
, file
);
1364 mutex_unlock(&dev
->struct_mutex
);
1367 static void i915_driver_postclose(struct drm_device
*dev
, struct drm_file
*file
)
1369 struct drm_i915_file_private
*file_priv
= file
->driver_priv
;
1374 static void intel_suspend_encoders(struct drm_i915_private
*dev_priv
)
1376 struct drm_device
*dev
= &dev_priv
->drm
;
1377 struct intel_encoder
*encoder
;
1379 drm_modeset_lock_all(dev
);
1380 for_each_intel_encoder(dev
, encoder
)
1381 if (encoder
->suspend
)
1382 encoder
->suspend(encoder
);
1383 drm_modeset_unlock_all(dev
);
1386 static int vlv_resume_prepare(struct drm_i915_private
*dev_priv
,
1388 static int vlv_suspend_complete(struct drm_i915_private
*dev_priv
);
1390 static bool suspend_to_idle(struct drm_i915_private
*dev_priv
)
1392 #if IS_ENABLED(CONFIG_ACPI_SLEEP)
1393 if (acpi_target_system_state() < ACPI_STATE_S3
)
1399 static int i915_drm_suspend(struct drm_device
*dev
)
1401 struct drm_i915_private
*dev_priv
= to_i915(dev
);
1402 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
1403 pci_power_t opregion_target_state
;
1406 /* ignore lid events during suspend */
1407 mutex_lock(&dev_priv
->modeset_restore_lock
);
1408 dev_priv
->modeset_restore
= MODESET_SUSPENDED
;
1409 mutex_unlock(&dev_priv
->modeset_restore_lock
);
1411 disable_rpm_wakeref_asserts(dev_priv
);
1413 /* We do a lot of poking in a lot of registers, make sure they work
1415 intel_display_set_init_power(dev_priv
, true);
1417 drm_kms_helper_poll_disable(dev
);
1419 pci_save_state(pdev
);
1421 error
= i915_gem_suspend(dev
);
1424 "GEM idle failed, resume might fail\n");
1428 intel_guc_suspend(dev
);
1430 intel_display_suspend(dev
);
1432 intel_dp_mst_suspend(dev
);
1434 intel_runtime_pm_disable_interrupts(dev_priv
);
1435 intel_hpd_cancel_work(dev_priv
);
1437 intel_suspend_encoders(dev_priv
);
1439 intel_suspend_hw(dev_priv
);
1441 i915_gem_suspend_gtt_mappings(dev
);
1443 i915_save_state(dev
);
1445 opregion_target_state
= suspend_to_idle(dev_priv
) ? PCI_D1
: PCI_D3cold
;
1446 intel_opregion_notify_adapter(dev_priv
, opregion_target_state
);
1448 intel_uncore_forcewake_reset(dev_priv
, false);
1449 intel_opregion_unregister(dev_priv
);
1451 intel_fbdev_set_suspend(dev
, FBINFO_STATE_SUSPENDED
, true);
1453 dev_priv
->suspend_count
++;
1455 intel_csr_ucode_suspend(dev_priv
);
1458 enable_rpm_wakeref_asserts(dev_priv
);
1463 static int i915_drm_suspend_late(struct drm_device
*dev
, bool hibernation
)
1465 struct drm_i915_private
*dev_priv
= to_i915(dev
);
1466 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
1470 disable_rpm_wakeref_asserts(dev_priv
);
1472 intel_display_set_init_power(dev_priv
, false);
1474 fw_csr
= !IS_BROXTON(dev_priv
) &&
1475 suspend_to_idle(dev_priv
) && dev_priv
->csr
.dmc_payload
;
1477 * In case of firmware assisted context save/restore don't manually
1478 * deinit the power domains. This also means the CSR/DMC firmware will
1479 * stay active, it will power down any HW resources as required and
1480 * also enable deeper system power states that would be blocked if the
1481 * firmware was inactive.
1484 intel_power_domains_suspend(dev_priv
);
1487 if (IS_BROXTON(dev_priv
))
1488 bxt_enable_dc9(dev_priv
);
1489 else if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
))
1490 hsw_enable_pc8(dev_priv
);
1491 else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
1492 ret
= vlv_suspend_complete(dev_priv
);
1495 DRM_ERROR("Suspend complete failed: %d\n", ret
);
1497 intel_power_domains_init_hw(dev_priv
, true);
1502 pci_disable_device(pdev
);
1504 * During hibernation on some platforms the BIOS may try to access
1505 * the device even though it's already in D3 and hang the machine. So
1506 * leave the device in D0 on those platforms and hope the BIOS will
1507 * power down the device properly. The issue was seen on multiple old
1508 * GENs with different BIOS vendors, so having an explicit blacklist
1509 * is inpractical; apply the workaround on everything pre GEN6. The
1510 * platforms where the issue was seen:
1511 * Lenovo Thinkpad X301, X61s, X60, T60, X41
1515 if (!(hibernation
&& INTEL_INFO(dev_priv
)->gen
< 6))
1516 pci_set_power_state(pdev
, PCI_D3hot
);
1518 dev_priv
->suspended_to_idle
= suspend_to_idle(dev_priv
);
1521 enable_rpm_wakeref_asserts(dev_priv
);
1526 int i915_suspend_switcheroo(struct drm_device
*dev
, pm_message_t state
)
1531 DRM_ERROR("dev: %p\n", dev
);
1532 DRM_ERROR("DRM not initialized, aborting suspend.\n");
1536 if (WARN_ON_ONCE(state
.event
!= PM_EVENT_SUSPEND
&&
1537 state
.event
!= PM_EVENT_FREEZE
))
1540 if (dev
->switch_power_state
== DRM_SWITCH_POWER_OFF
)
1543 error
= i915_drm_suspend(dev
);
1547 return i915_drm_suspend_late(dev
, false);
1550 static int i915_drm_resume(struct drm_device
*dev
)
1552 struct drm_i915_private
*dev_priv
= to_i915(dev
);
1555 disable_rpm_wakeref_asserts(dev_priv
);
1556 intel_sanitize_gt_powersave(dev_priv
);
1558 ret
= i915_ggtt_enable_hw(dev_priv
);
1560 DRM_ERROR("failed to re-enable GGTT\n");
1562 intel_csr_ucode_resume(dev_priv
);
1564 i915_gem_resume(dev
);
1566 i915_restore_state(dev
);
1567 intel_pps_unlock_regs_wa(dev_priv
);
1568 intel_opregion_setup(dev_priv
);
1570 intel_init_pch_refclk(dev
);
1571 drm_mode_config_reset(dev
);
1574 * Interrupts have to be enabled before any batches are run. If not the
1575 * GPU will hang. i915_gem_init_hw() will initiate batches to
1576 * update/restore the context.
1578 * Modeset enabling in intel_modeset_init_hw() also needs working
1581 intel_runtime_pm_enable_interrupts(dev_priv
);
1583 mutex_lock(&dev
->struct_mutex
);
1584 if (i915_gem_init_hw(dev
)) {
1585 DRM_ERROR("failed to re-initialize GPU, declaring wedged!\n");
1586 i915_gem_set_wedged(dev_priv
);
1588 mutex_unlock(&dev
->struct_mutex
);
1590 intel_guc_resume(dev
);
1592 intel_modeset_init_hw(dev
);
1594 spin_lock_irq(&dev_priv
->irq_lock
);
1595 if (dev_priv
->display
.hpd_irq_setup
)
1596 dev_priv
->display
.hpd_irq_setup(dev_priv
);
1597 spin_unlock_irq(&dev_priv
->irq_lock
);
1599 intel_dp_mst_resume(dev
);
1601 intel_display_resume(dev
);
1604 * ... but also need to make sure that hotplug processing
1605 * doesn't cause havoc. Like in the driver load code we don't
1606 * bother with the tiny race here where we might loose hotplug
1609 intel_hpd_init(dev_priv
);
1610 /* Config may have changed between suspend and resume */
1611 drm_helper_hpd_irq_event(dev
);
1613 intel_opregion_register(dev_priv
);
1615 intel_fbdev_set_suspend(dev
, FBINFO_STATE_RUNNING
, false);
1617 mutex_lock(&dev_priv
->modeset_restore_lock
);
1618 dev_priv
->modeset_restore
= MODESET_DONE
;
1619 mutex_unlock(&dev_priv
->modeset_restore_lock
);
1621 intel_opregion_notify_adapter(dev_priv
, PCI_D0
);
1623 intel_autoenable_gt_powersave(dev_priv
);
1624 drm_kms_helper_poll_enable(dev
);
1626 enable_rpm_wakeref_asserts(dev_priv
);
1631 static int i915_drm_resume_early(struct drm_device
*dev
)
1633 struct drm_i915_private
*dev_priv
= to_i915(dev
);
1634 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
1638 * We have a resume ordering issue with the snd-hda driver also
1639 * requiring our device to be power up. Due to the lack of a
1640 * parent/child relationship we currently solve this with an early
1643 * FIXME: This should be solved with a special hdmi sink device or
1644 * similar so that power domains can be employed.
1648 * Note that we need to set the power state explicitly, since we
1649 * powered off the device during freeze and the PCI core won't power
1650 * it back up for us during thaw. Powering off the device during
1651 * freeze is not a hard requirement though, and during the
1652 * suspend/resume phases the PCI core makes sure we get here with the
1653 * device powered on. So in case we change our freeze logic and keep
1654 * the device powered we can also remove the following set power state
1657 ret
= pci_set_power_state(pdev
, PCI_D0
);
1659 DRM_ERROR("failed to set PCI D0 power state (%d)\n", ret
);
1664 * Note that pci_enable_device() first enables any parent bridge
1665 * device and only then sets the power state for this device. The
1666 * bridge enabling is a nop though, since bridge devices are resumed
1667 * first. The order of enabling power and enabling the device is
1668 * imposed by the PCI core as described above, so here we preserve the
1669 * same order for the freeze/thaw phases.
1671 * TODO: eventually we should remove pci_disable_device() /
1672 * pci_enable_enable_device() from suspend/resume. Due to how they
1673 * depend on the device enable refcount we can't anyway depend on them
1674 * disabling/enabling the device.
1676 if (pci_enable_device(pdev
)) {
1681 pci_set_master(pdev
);
1683 disable_rpm_wakeref_asserts(dev_priv
);
1685 if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
1686 ret
= vlv_resume_prepare(dev_priv
, false);
1688 DRM_ERROR("Resume prepare failed: %d, continuing anyway\n",
1691 intel_uncore_early_sanitize(dev_priv
, true);
1693 if (IS_BROXTON(dev_priv
)) {
1694 if (!dev_priv
->suspended_to_idle
)
1695 gen9_sanitize_dc_state(dev_priv
);
1696 bxt_disable_dc9(dev_priv
);
1697 } else if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
)) {
1698 hsw_disable_pc8(dev_priv
);
1701 intel_uncore_sanitize(dev_priv
);
1703 if (IS_BROXTON(dev_priv
) ||
1704 !(dev_priv
->suspended_to_idle
&& dev_priv
->csr
.dmc_payload
))
1705 intel_power_domains_init_hw(dev_priv
, true);
1707 enable_rpm_wakeref_asserts(dev_priv
);
1710 dev_priv
->suspended_to_idle
= false;
1715 int i915_resume_switcheroo(struct drm_device
*dev
)
1719 if (dev
->switch_power_state
== DRM_SWITCH_POWER_OFF
)
1722 ret
= i915_drm_resume_early(dev
);
1726 return i915_drm_resume(dev
);
1729 static void disable_engines_irq(struct drm_i915_private
*dev_priv
)
1731 struct intel_engine_cs
*engine
;
1732 enum intel_engine_id id
;
1734 /* Ensure irq handler finishes, and not run again. */
1735 disable_irq(dev_priv
->drm
.irq
);
1736 for_each_engine(engine
, dev_priv
, id
)
1737 tasklet_kill(&engine
->irq_tasklet
);
1740 static void enable_engines_irq(struct drm_i915_private
*dev_priv
)
1742 enable_irq(dev_priv
->drm
.irq
);
1746 * i915_reset - reset chip after a hang
1747 * @dev: drm device to reset
1749 * Reset the chip. Useful if a hang is detected. Marks the device as wedged
1752 * Caller must hold the struct_mutex.
1754 * Procedure is fairly simple:
1755 * - reset the chip using the reset reg
1756 * - re-init context state
1757 * - re-init hardware status page
1758 * - re-init ring buffer
1759 * - re-init interrupt state
1762 void i915_reset(struct drm_i915_private
*dev_priv
)
1764 struct drm_device
*dev
= &dev_priv
->drm
;
1765 struct i915_gpu_error
*error
= &dev_priv
->gpu_error
;
1768 lockdep_assert_held(&dev
->struct_mutex
);
1770 if (!test_and_clear_bit(I915_RESET_IN_PROGRESS
, &error
->flags
))
1773 /* Clear any previous failed attempts at recovery. Time to try again. */
1774 __clear_bit(I915_WEDGED
, &error
->flags
);
1775 error
->reset_count
++;
1777 pr_notice("drm/i915: Resetting chip after gpu hang\n");
1779 disable_engines_irq(dev_priv
);
1780 ret
= intel_gpu_reset(dev_priv
, ALL_ENGINES
);
1781 enable_engines_irq(dev_priv
);
1785 DRM_ERROR("Failed to reset chip: %i\n", ret
);
1787 DRM_DEBUG_DRIVER("GPU reset disabled\n");
1791 i915_gem_reset(dev_priv
);
1792 intel_overlay_reset(dev_priv
);
1794 /* Ok, now get things going again... */
1797 * Everything depends on having the GTT running, so we need to start
1798 * there. Fortunately we don't need to do this unless we reset the
1799 * chip at a PCI level.
1801 * Next we need to restore the context, but we don't use those
1804 * Ring buffer needs to be re-initialized in the KMS case, or if X
1805 * was running at the time of the reset (i.e. we weren't VT
1808 ret
= i915_gem_init_hw(dev
);
1810 DRM_ERROR("Failed hw init on reset %d\n", ret
);
1815 wake_up_bit(&error
->flags
, I915_RESET_IN_PROGRESS
);
1819 i915_gem_set_wedged(dev_priv
);
1823 static int i915_pm_suspend(struct device
*kdev
)
1825 struct pci_dev
*pdev
= to_pci_dev(kdev
);
1826 struct drm_device
*dev
= pci_get_drvdata(pdev
);
1829 dev_err(kdev
, "DRM not initialized, aborting suspend.\n");
1833 if (dev
->switch_power_state
== DRM_SWITCH_POWER_OFF
)
1836 return i915_drm_suspend(dev
);
1839 static int i915_pm_suspend_late(struct device
*kdev
)
1841 struct drm_device
*dev
= &kdev_to_i915(kdev
)->drm
;
1844 * We have a suspend ordering issue with the snd-hda driver also
1845 * requiring our device to be power up. Due to the lack of a
1846 * parent/child relationship we currently solve this with an late
1849 * FIXME: This should be solved with a special hdmi sink device or
1850 * similar so that power domains can be employed.
1852 if (dev
->switch_power_state
== DRM_SWITCH_POWER_OFF
)
1855 return i915_drm_suspend_late(dev
, false);
1858 static int i915_pm_poweroff_late(struct device
*kdev
)
1860 struct drm_device
*dev
= &kdev_to_i915(kdev
)->drm
;
1862 if (dev
->switch_power_state
== DRM_SWITCH_POWER_OFF
)
1865 return i915_drm_suspend_late(dev
, true);
1868 static int i915_pm_resume_early(struct device
*kdev
)
1870 struct drm_device
*dev
= &kdev_to_i915(kdev
)->drm
;
1872 if (dev
->switch_power_state
== DRM_SWITCH_POWER_OFF
)
1875 return i915_drm_resume_early(dev
);
1878 static int i915_pm_resume(struct device
*kdev
)
1880 struct drm_device
*dev
= &kdev_to_i915(kdev
)->drm
;
1882 if (dev
->switch_power_state
== DRM_SWITCH_POWER_OFF
)
1885 return i915_drm_resume(dev
);
1888 /* freeze: before creating the hibernation_image */
1889 static int i915_pm_freeze(struct device
*kdev
)
1893 ret
= i915_pm_suspend(kdev
);
1897 ret
= i915_gem_freeze(kdev_to_i915(kdev
));
1904 static int i915_pm_freeze_late(struct device
*kdev
)
1908 ret
= i915_pm_suspend_late(kdev
);
1912 ret
= i915_gem_freeze_late(kdev_to_i915(kdev
));
1919 /* thaw: called after creating the hibernation image, but before turning off. */
1920 static int i915_pm_thaw_early(struct device
*kdev
)
1922 return i915_pm_resume_early(kdev
);
1925 static int i915_pm_thaw(struct device
*kdev
)
1927 return i915_pm_resume(kdev
);
1930 /* restore: called after loading the hibernation image. */
1931 static int i915_pm_restore_early(struct device
*kdev
)
1933 return i915_pm_resume_early(kdev
);
1936 static int i915_pm_restore(struct device
*kdev
)
1938 return i915_pm_resume(kdev
);
1942 * Save all Gunit registers that may be lost after a D3 and a subsequent
1943 * S0i[R123] transition. The list of registers needing a save/restore is
1944 * defined in the VLV2_S0IXRegs document. This documents marks all Gunit
1945 * registers in the following way:
1946 * - Driver: saved/restored by the driver
1947 * - Punit : saved/restored by the Punit firmware
1948 * - No, w/o marking: no need to save/restore, since the register is R/O or
1949 * used internally by the HW in a way that doesn't depend
1950 * keeping the content across a suspend/resume.
1951 * - Debug : used for debugging
1953 * We save/restore all registers marked with 'Driver', with the following
1955 * - Registers out of use, including also registers marked with 'Debug'.
1956 * These have no effect on the driver's operation, so we don't save/restore
1957 * them to reduce the overhead.
1958 * - Registers that are fully setup by an initialization function called from
1959 * the resume path. For example many clock gating and RPS/RC6 registers.
1960 * - Registers that provide the right functionality with their reset defaults.
1962 * TODO: Except for registers that based on the above 3 criteria can be safely
1963 * ignored, we save/restore all others, practically treating the HW context as
1964 * a black-box for the driver. Further investigation is needed to reduce the
1965 * saved/restored registers even further, by following the same 3 criteria.
1967 static void vlv_save_gunit_s0ix_state(struct drm_i915_private
*dev_priv
)
1969 struct vlv_s0ix_state
*s
= &dev_priv
->vlv_s0ix_state
;
1972 /* GAM 0x4000-0x4770 */
1973 s
->wr_watermark
= I915_READ(GEN7_WR_WATERMARK
);
1974 s
->gfx_prio_ctrl
= I915_READ(GEN7_GFX_PRIO_CTRL
);
1975 s
->arb_mode
= I915_READ(ARB_MODE
);
1976 s
->gfx_pend_tlb0
= I915_READ(GEN7_GFX_PEND_TLB0
);
1977 s
->gfx_pend_tlb1
= I915_READ(GEN7_GFX_PEND_TLB1
);
1979 for (i
= 0; i
< ARRAY_SIZE(s
->lra_limits
); i
++)
1980 s
->lra_limits
[i
] = I915_READ(GEN7_LRA_LIMITS(i
));
1982 s
->media_max_req_count
= I915_READ(GEN7_MEDIA_MAX_REQ_COUNT
);
1983 s
->gfx_max_req_count
= I915_READ(GEN7_GFX_MAX_REQ_COUNT
);
1985 s
->render_hwsp
= I915_READ(RENDER_HWS_PGA_GEN7
);
1986 s
->ecochk
= I915_READ(GAM_ECOCHK
);
1987 s
->bsd_hwsp
= I915_READ(BSD_HWS_PGA_GEN7
);
1988 s
->blt_hwsp
= I915_READ(BLT_HWS_PGA_GEN7
);
1990 s
->tlb_rd_addr
= I915_READ(GEN7_TLB_RD_ADDR
);
1992 /* MBC 0x9024-0x91D0, 0x8500 */
1993 s
->g3dctl
= I915_READ(VLV_G3DCTL
);
1994 s
->gsckgctl
= I915_READ(VLV_GSCKGCTL
);
1995 s
->mbctl
= I915_READ(GEN6_MBCTL
);
1997 /* GCP 0x9400-0x9424, 0x8100-0x810C */
1998 s
->ucgctl1
= I915_READ(GEN6_UCGCTL1
);
1999 s
->ucgctl3
= I915_READ(GEN6_UCGCTL3
);
2000 s
->rcgctl1
= I915_READ(GEN6_RCGCTL1
);
2001 s
->rcgctl2
= I915_READ(GEN6_RCGCTL2
);
2002 s
->rstctl
= I915_READ(GEN6_RSTCTL
);
2003 s
->misccpctl
= I915_READ(GEN7_MISCCPCTL
);
2005 /* GPM 0xA000-0xAA84, 0x8000-0x80FC */
2006 s
->gfxpause
= I915_READ(GEN6_GFXPAUSE
);
2007 s
->rpdeuhwtc
= I915_READ(GEN6_RPDEUHWTC
);
2008 s
->rpdeuc
= I915_READ(GEN6_RPDEUC
);
2009 s
->ecobus
= I915_READ(ECOBUS
);
2010 s
->pwrdwnupctl
= I915_READ(VLV_PWRDWNUPCTL
);
2011 s
->rp_down_timeout
= I915_READ(GEN6_RP_DOWN_TIMEOUT
);
2012 s
->rp_deucsw
= I915_READ(GEN6_RPDEUCSW
);
2013 s
->rcubmabdtmr
= I915_READ(GEN6_RCUBMABDTMR
);
2014 s
->rcedata
= I915_READ(VLV_RCEDATA
);
2015 s
->spare2gh
= I915_READ(VLV_SPAREG2H
);
2017 /* Display CZ domain, 0x4400C-0x4402C, 0x4F000-0x4F11F */
2018 s
->gt_imr
= I915_READ(GTIMR
);
2019 s
->gt_ier
= I915_READ(GTIER
);
2020 s
->pm_imr
= I915_READ(GEN6_PMIMR
);
2021 s
->pm_ier
= I915_READ(GEN6_PMIER
);
2023 for (i
= 0; i
< ARRAY_SIZE(s
->gt_scratch
); i
++)
2024 s
->gt_scratch
[i
] = I915_READ(GEN7_GT_SCRATCH(i
));
2026 /* GT SA CZ domain, 0x100000-0x138124 */
2027 s
->tilectl
= I915_READ(TILECTL
);
2028 s
->gt_fifoctl
= I915_READ(GTFIFOCTL
);
2029 s
->gtlc_wake_ctrl
= I915_READ(VLV_GTLC_WAKE_CTRL
);
2030 s
->gtlc_survive
= I915_READ(VLV_GTLC_SURVIVABILITY_REG
);
2031 s
->pmwgicz
= I915_READ(VLV_PMWGICZ
);
2033 /* Gunit-Display CZ domain, 0x182028-0x1821CF */
2034 s
->gu_ctl0
= I915_READ(VLV_GU_CTL0
);
2035 s
->gu_ctl1
= I915_READ(VLV_GU_CTL1
);
2036 s
->pcbr
= I915_READ(VLV_PCBR
);
2037 s
->clock_gate_dis2
= I915_READ(VLV_GUNIT_CLOCK_GATE2
);
2040 * Not saving any of:
2041 * DFT, 0x9800-0x9EC0
2042 * SARB, 0xB000-0xB1FC
2043 * GAC, 0x5208-0x524C, 0x14000-0x14C000
2048 static void vlv_restore_gunit_s0ix_state(struct drm_i915_private
*dev_priv
)
2050 struct vlv_s0ix_state
*s
= &dev_priv
->vlv_s0ix_state
;
2054 /* GAM 0x4000-0x4770 */
2055 I915_WRITE(GEN7_WR_WATERMARK
, s
->wr_watermark
);
2056 I915_WRITE(GEN7_GFX_PRIO_CTRL
, s
->gfx_prio_ctrl
);
2057 I915_WRITE(ARB_MODE
, s
->arb_mode
| (0xffff << 16));
2058 I915_WRITE(GEN7_GFX_PEND_TLB0
, s
->gfx_pend_tlb0
);
2059 I915_WRITE(GEN7_GFX_PEND_TLB1
, s
->gfx_pend_tlb1
);
2061 for (i
= 0; i
< ARRAY_SIZE(s
->lra_limits
); i
++)
2062 I915_WRITE(GEN7_LRA_LIMITS(i
), s
->lra_limits
[i
]);
2064 I915_WRITE(GEN7_MEDIA_MAX_REQ_COUNT
, s
->media_max_req_count
);
2065 I915_WRITE(GEN7_GFX_MAX_REQ_COUNT
, s
->gfx_max_req_count
);
2067 I915_WRITE(RENDER_HWS_PGA_GEN7
, s
->render_hwsp
);
2068 I915_WRITE(GAM_ECOCHK
, s
->ecochk
);
2069 I915_WRITE(BSD_HWS_PGA_GEN7
, s
->bsd_hwsp
);
2070 I915_WRITE(BLT_HWS_PGA_GEN7
, s
->blt_hwsp
);
2072 I915_WRITE(GEN7_TLB_RD_ADDR
, s
->tlb_rd_addr
);
2074 /* MBC 0x9024-0x91D0, 0x8500 */
2075 I915_WRITE(VLV_G3DCTL
, s
->g3dctl
);
2076 I915_WRITE(VLV_GSCKGCTL
, s
->gsckgctl
);
2077 I915_WRITE(GEN6_MBCTL
, s
->mbctl
);
2079 /* GCP 0x9400-0x9424, 0x8100-0x810C */
2080 I915_WRITE(GEN6_UCGCTL1
, s
->ucgctl1
);
2081 I915_WRITE(GEN6_UCGCTL3
, s
->ucgctl3
);
2082 I915_WRITE(GEN6_RCGCTL1
, s
->rcgctl1
);
2083 I915_WRITE(GEN6_RCGCTL2
, s
->rcgctl2
);
2084 I915_WRITE(GEN6_RSTCTL
, s
->rstctl
);
2085 I915_WRITE(GEN7_MISCCPCTL
, s
->misccpctl
);
2087 /* GPM 0xA000-0xAA84, 0x8000-0x80FC */
2088 I915_WRITE(GEN6_GFXPAUSE
, s
->gfxpause
);
2089 I915_WRITE(GEN6_RPDEUHWTC
, s
->rpdeuhwtc
);
2090 I915_WRITE(GEN6_RPDEUC
, s
->rpdeuc
);
2091 I915_WRITE(ECOBUS
, s
->ecobus
);
2092 I915_WRITE(VLV_PWRDWNUPCTL
, s
->pwrdwnupctl
);
2093 I915_WRITE(GEN6_RP_DOWN_TIMEOUT
,s
->rp_down_timeout
);
2094 I915_WRITE(GEN6_RPDEUCSW
, s
->rp_deucsw
);
2095 I915_WRITE(GEN6_RCUBMABDTMR
, s
->rcubmabdtmr
);
2096 I915_WRITE(VLV_RCEDATA
, s
->rcedata
);
2097 I915_WRITE(VLV_SPAREG2H
, s
->spare2gh
);
2099 /* Display CZ domain, 0x4400C-0x4402C, 0x4F000-0x4F11F */
2100 I915_WRITE(GTIMR
, s
->gt_imr
);
2101 I915_WRITE(GTIER
, s
->gt_ier
);
2102 I915_WRITE(GEN6_PMIMR
, s
->pm_imr
);
2103 I915_WRITE(GEN6_PMIER
, s
->pm_ier
);
2105 for (i
= 0; i
< ARRAY_SIZE(s
->gt_scratch
); i
++)
2106 I915_WRITE(GEN7_GT_SCRATCH(i
), s
->gt_scratch
[i
]);
2108 /* GT SA CZ domain, 0x100000-0x138124 */
2109 I915_WRITE(TILECTL
, s
->tilectl
);
2110 I915_WRITE(GTFIFOCTL
, s
->gt_fifoctl
);
2112 * Preserve the GT allow wake and GFX force clock bit, they are not
2113 * be restored, as they are used to control the s0ix suspend/resume
2114 * sequence by the caller.
2116 val
= I915_READ(VLV_GTLC_WAKE_CTRL
);
2117 val
&= VLV_GTLC_ALLOWWAKEREQ
;
2118 val
|= s
->gtlc_wake_ctrl
& ~VLV_GTLC_ALLOWWAKEREQ
;
2119 I915_WRITE(VLV_GTLC_WAKE_CTRL
, val
);
2121 val
= I915_READ(VLV_GTLC_SURVIVABILITY_REG
);
2122 val
&= VLV_GFX_CLK_FORCE_ON_BIT
;
2123 val
|= s
->gtlc_survive
& ~VLV_GFX_CLK_FORCE_ON_BIT
;
2124 I915_WRITE(VLV_GTLC_SURVIVABILITY_REG
, val
);
2126 I915_WRITE(VLV_PMWGICZ
, s
->pmwgicz
);
2128 /* Gunit-Display CZ domain, 0x182028-0x1821CF */
2129 I915_WRITE(VLV_GU_CTL0
, s
->gu_ctl0
);
2130 I915_WRITE(VLV_GU_CTL1
, s
->gu_ctl1
);
2131 I915_WRITE(VLV_PCBR
, s
->pcbr
);
2132 I915_WRITE(VLV_GUNIT_CLOCK_GATE2
, s
->clock_gate_dis2
);
2135 int vlv_force_gfx_clock(struct drm_i915_private
*dev_priv
, bool force_on
)
2140 val
= I915_READ(VLV_GTLC_SURVIVABILITY_REG
);
2141 val
&= ~VLV_GFX_CLK_FORCE_ON_BIT
;
2143 val
|= VLV_GFX_CLK_FORCE_ON_BIT
;
2144 I915_WRITE(VLV_GTLC_SURVIVABILITY_REG
, val
);
2149 err
= intel_wait_for_register(dev_priv
,
2150 VLV_GTLC_SURVIVABILITY_REG
,
2151 VLV_GFX_CLK_STATUS_BIT
,
2152 VLV_GFX_CLK_STATUS_BIT
,
2155 DRM_ERROR("timeout waiting for GFX clock force-on (%08x)\n",
2156 I915_READ(VLV_GTLC_SURVIVABILITY_REG
));
2161 static int vlv_allow_gt_wake(struct drm_i915_private
*dev_priv
, bool allow
)
2166 val
= I915_READ(VLV_GTLC_WAKE_CTRL
);
2167 val
&= ~VLV_GTLC_ALLOWWAKEREQ
;
2169 val
|= VLV_GTLC_ALLOWWAKEREQ
;
2170 I915_WRITE(VLV_GTLC_WAKE_CTRL
, val
);
2171 POSTING_READ(VLV_GTLC_WAKE_CTRL
);
2173 err
= intel_wait_for_register(dev_priv
,
2175 VLV_GTLC_ALLOWWAKEACK
,
2179 DRM_ERROR("timeout disabling GT waking\n");
2184 static int vlv_wait_for_gt_wells(struct drm_i915_private
*dev_priv
,
2191 mask
= VLV_GTLC_PW_MEDIA_STATUS_MASK
| VLV_GTLC_PW_RENDER_STATUS_MASK
;
2192 val
= wait_for_on
? mask
: 0;
2193 if ((I915_READ(VLV_GTLC_PW_STATUS
) & mask
) == val
)
2196 DRM_DEBUG_KMS("waiting for GT wells to go %s (%08x)\n",
2198 I915_READ(VLV_GTLC_PW_STATUS
));
2201 * RC6 transitioning can be delayed up to 2 msec (see
2202 * valleyview_enable_rps), use 3 msec for safety.
2204 err
= intel_wait_for_register(dev_priv
,
2205 VLV_GTLC_PW_STATUS
, mask
, val
,
2208 DRM_ERROR("timeout waiting for GT wells to go %s\n",
2209 onoff(wait_for_on
));
2214 static void vlv_check_no_gt_access(struct drm_i915_private
*dev_priv
)
2216 if (!(I915_READ(VLV_GTLC_PW_STATUS
) & VLV_GTLC_ALLOWWAKEERR
))
2219 DRM_DEBUG_DRIVER("GT register access while GT waking disabled\n");
2220 I915_WRITE(VLV_GTLC_PW_STATUS
, VLV_GTLC_ALLOWWAKEERR
);
2223 static int vlv_suspend_complete(struct drm_i915_private
*dev_priv
)
2229 * Bspec defines the following GT well on flags as debug only, so
2230 * don't treat them as hard failures.
2232 (void)vlv_wait_for_gt_wells(dev_priv
, false);
2234 mask
= VLV_GTLC_RENDER_CTX_EXISTS
| VLV_GTLC_MEDIA_CTX_EXISTS
;
2235 WARN_ON((I915_READ(VLV_GTLC_WAKE_CTRL
) & mask
) != mask
);
2237 vlv_check_no_gt_access(dev_priv
);
2239 err
= vlv_force_gfx_clock(dev_priv
, true);
2243 err
= vlv_allow_gt_wake(dev_priv
, false);
2247 if (!IS_CHERRYVIEW(dev_priv
))
2248 vlv_save_gunit_s0ix_state(dev_priv
);
2250 err
= vlv_force_gfx_clock(dev_priv
, false);
2257 /* For safety always re-enable waking and disable gfx clock forcing */
2258 vlv_allow_gt_wake(dev_priv
, true);
2260 vlv_force_gfx_clock(dev_priv
, false);
2265 static int vlv_resume_prepare(struct drm_i915_private
*dev_priv
,
2272 * If any of the steps fail just try to continue, that's the best we
2273 * can do at this point. Return the first error code (which will also
2274 * leave RPM permanently disabled).
2276 ret
= vlv_force_gfx_clock(dev_priv
, true);
2278 if (!IS_CHERRYVIEW(dev_priv
))
2279 vlv_restore_gunit_s0ix_state(dev_priv
);
2281 err
= vlv_allow_gt_wake(dev_priv
, true);
2285 err
= vlv_force_gfx_clock(dev_priv
, false);
2289 vlv_check_no_gt_access(dev_priv
);
2292 intel_init_clock_gating(dev_priv
);
2297 static int intel_runtime_suspend(struct device
*kdev
)
2299 struct pci_dev
*pdev
= to_pci_dev(kdev
);
2300 struct drm_device
*dev
= pci_get_drvdata(pdev
);
2301 struct drm_i915_private
*dev_priv
= to_i915(dev
);
2304 if (WARN_ON_ONCE(!(dev_priv
->rps
.enabled
&& intel_enable_rc6())))
2307 if (WARN_ON_ONCE(!HAS_RUNTIME_PM(dev_priv
)))
2310 DRM_DEBUG_KMS("Suspending device\n");
2312 disable_rpm_wakeref_asserts(dev_priv
);
2315 * We are safe here against re-faults, since the fault handler takes
2318 i915_gem_runtime_suspend(dev_priv
);
2320 intel_guc_suspend(dev
);
2322 intel_runtime_pm_disable_interrupts(dev_priv
);
2325 if (IS_BROXTON(dev_priv
)) {
2326 bxt_display_core_uninit(dev_priv
);
2327 bxt_enable_dc9(dev_priv
);
2328 } else if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
)) {
2329 hsw_enable_pc8(dev_priv
);
2330 } else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) {
2331 ret
= vlv_suspend_complete(dev_priv
);
2335 DRM_ERROR("Runtime suspend failed, disabling it (%d)\n", ret
);
2336 intel_runtime_pm_enable_interrupts(dev_priv
);
2338 enable_rpm_wakeref_asserts(dev_priv
);
2343 intel_uncore_forcewake_reset(dev_priv
, false);
2345 enable_rpm_wakeref_asserts(dev_priv
);
2346 WARN_ON_ONCE(atomic_read(&dev_priv
->pm
.wakeref_count
));
2348 if (intel_uncore_arm_unclaimed_mmio_detection(dev_priv
))
2349 DRM_ERROR("Unclaimed access detected prior to suspending\n");
2351 dev_priv
->pm
.suspended
= true;
2354 * FIXME: We really should find a document that references the arguments
2357 if (IS_BROADWELL(dev_priv
)) {
2359 * On Broadwell, if we use PCI_D1 the PCH DDI ports will stop
2360 * being detected, and the call we do at intel_runtime_resume()
2361 * won't be able to restore them. Since PCI_D3hot matches the
2362 * actual specification and appears to be working, use it.
2364 intel_opregion_notify_adapter(dev_priv
, PCI_D3hot
);
2367 * current versions of firmware which depend on this opregion
2368 * notification have repurposed the D1 definition to mean
2369 * "runtime suspended" vs. what you would normally expect (D3)
2370 * to distinguish it from notifications that might be sent via
2373 intel_opregion_notify_adapter(dev_priv
, PCI_D1
);
2376 assert_forcewakes_inactive(dev_priv
);
2378 if (!IS_VALLEYVIEW(dev_priv
) || !IS_CHERRYVIEW(dev_priv
))
2379 intel_hpd_poll_init(dev_priv
);
2381 DRM_DEBUG_KMS("Device suspended\n");
2385 static int intel_runtime_resume(struct device
*kdev
)
2387 struct pci_dev
*pdev
= to_pci_dev(kdev
);
2388 struct drm_device
*dev
= pci_get_drvdata(pdev
);
2389 struct drm_i915_private
*dev_priv
= to_i915(dev
);
2392 if (WARN_ON_ONCE(!HAS_RUNTIME_PM(dev_priv
)))
2395 DRM_DEBUG_KMS("Resuming device\n");
2397 WARN_ON_ONCE(atomic_read(&dev_priv
->pm
.wakeref_count
));
2398 disable_rpm_wakeref_asserts(dev_priv
);
2400 intel_opregion_notify_adapter(dev_priv
, PCI_D0
);
2401 dev_priv
->pm
.suspended
= false;
2402 if (intel_uncore_unclaimed_mmio(dev_priv
))
2403 DRM_DEBUG_DRIVER("Unclaimed access during suspend, bios?\n");
2405 intel_guc_resume(dev
);
2407 if (IS_GEN6(dev_priv
))
2408 intel_init_pch_refclk(dev
);
2410 if (IS_BROXTON(dev_priv
)) {
2411 bxt_disable_dc9(dev_priv
);
2412 bxt_display_core_init(dev_priv
, true);
2413 if (dev_priv
->csr
.dmc_payload
&&
2414 (dev_priv
->csr
.allowed_dc_mask
& DC_STATE_EN_UPTO_DC5
))
2415 gen9_enable_dc5(dev_priv
);
2416 } else if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
)) {
2417 hsw_disable_pc8(dev_priv
);
2418 } else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) {
2419 ret
= vlv_resume_prepare(dev_priv
, true);
2423 * No point of rolling back things in case of an error, as the best
2424 * we can do is to hope that things will still work (and disable RPM).
2426 i915_gem_init_swizzling(dev
);
2428 intel_runtime_pm_enable_interrupts(dev_priv
);
2431 * On VLV/CHV display interrupts are part of the display
2432 * power well, so hpd is reinitialized from there. For
2433 * everyone else do it here.
2435 if (!IS_VALLEYVIEW(dev_priv
) && !IS_CHERRYVIEW(dev_priv
))
2436 intel_hpd_init(dev_priv
);
2438 enable_rpm_wakeref_asserts(dev_priv
);
2441 DRM_ERROR("Runtime resume failed, disabling it (%d)\n", ret
);
2443 DRM_DEBUG_KMS("Device resumed\n");
2448 const struct dev_pm_ops i915_pm_ops
= {
2450 * S0ix (via system suspend) and S3 event handlers [PMSG_SUSPEND,
2453 .suspend
= i915_pm_suspend
,
2454 .suspend_late
= i915_pm_suspend_late
,
2455 .resume_early
= i915_pm_resume_early
,
2456 .resume
= i915_pm_resume
,
2460 * @freeze, @freeze_late : called (1) before creating the
2461 * hibernation image [PMSG_FREEZE] and
2462 * (2) after rebooting, before restoring
2463 * the image [PMSG_QUIESCE]
2464 * @thaw, @thaw_early : called (1) after creating the hibernation
2465 * image, before writing it [PMSG_THAW]
2466 * and (2) after failing to create or
2467 * restore the image [PMSG_RECOVER]
2468 * @poweroff, @poweroff_late: called after writing the hibernation
2469 * image, before rebooting [PMSG_HIBERNATE]
2470 * @restore, @restore_early : called after rebooting and restoring the
2471 * hibernation image [PMSG_RESTORE]
2473 .freeze
= i915_pm_freeze
,
2474 .freeze_late
= i915_pm_freeze_late
,
2475 .thaw_early
= i915_pm_thaw_early
,
2476 .thaw
= i915_pm_thaw
,
2477 .poweroff
= i915_pm_suspend
,
2478 .poweroff_late
= i915_pm_poweroff_late
,
2479 .restore_early
= i915_pm_restore_early
,
2480 .restore
= i915_pm_restore
,
2482 /* S0ix (via runtime suspend) event handlers */
2483 .runtime_suspend
= intel_runtime_suspend
,
2484 .runtime_resume
= intel_runtime_resume
,
2487 static const struct vm_operations_struct i915_gem_vm_ops
= {
2488 .fault
= i915_gem_fault
,
2489 .open
= drm_gem_vm_open
,
2490 .close
= drm_gem_vm_close
,
2493 static const struct file_operations i915_driver_fops
= {
2494 .owner
= THIS_MODULE
,
2496 .release
= drm_release
,
2497 .unlocked_ioctl
= drm_ioctl
,
2498 .mmap
= drm_gem_mmap
,
2501 #ifdef CONFIG_COMPAT
2502 .compat_ioctl
= i915_compat_ioctl
,
2504 .llseek
= noop_llseek
,
2508 i915_gem_reject_pin_ioctl(struct drm_device
*dev
, void *data
,
2509 struct drm_file
*file
)
2514 static const struct drm_ioctl_desc i915_ioctls
[] = {
2515 DRM_IOCTL_DEF_DRV(I915_INIT
, drm_noop
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
2516 DRM_IOCTL_DEF_DRV(I915_FLUSH
, drm_noop
, DRM_AUTH
),
2517 DRM_IOCTL_DEF_DRV(I915_FLIP
, drm_noop
, DRM_AUTH
),
2518 DRM_IOCTL_DEF_DRV(I915_BATCHBUFFER
, drm_noop
, DRM_AUTH
),
2519 DRM_IOCTL_DEF_DRV(I915_IRQ_EMIT
, drm_noop
, DRM_AUTH
),
2520 DRM_IOCTL_DEF_DRV(I915_IRQ_WAIT
, drm_noop
, DRM_AUTH
),
2521 DRM_IOCTL_DEF_DRV(I915_GETPARAM
, i915_getparam
, DRM_AUTH
|DRM_RENDER_ALLOW
),
2522 DRM_IOCTL_DEF_DRV(I915_SETPARAM
, drm_noop
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
2523 DRM_IOCTL_DEF_DRV(I915_ALLOC
, drm_noop
, DRM_AUTH
),
2524 DRM_IOCTL_DEF_DRV(I915_FREE
, drm_noop
, DRM_AUTH
),
2525 DRM_IOCTL_DEF_DRV(I915_INIT_HEAP
, drm_noop
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
2526 DRM_IOCTL_DEF_DRV(I915_CMDBUFFER
, drm_noop
, DRM_AUTH
),
2527 DRM_IOCTL_DEF_DRV(I915_DESTROY_HEAP
, drm_noop
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
2528 DRM_IOCTL_DEF_DRV(I915_SET_VBLANK_PIPE
, drm_noop
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
2529 DRM_IOCTL_DEF_DRV(I915_GET_VBLANK_PIPE
, drm_noop
, DRM_AUTH
),
2530 DRM_IOCTL_DEF_DRV(I915_VBLANK_SWAP
, drm_noop
, DRM_AUTH
),
2531 DRM_IOCTL_DEF_DRV(I915_HWS_ADDR
, drm_noop
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
2532 DRM_IOCTL_DEF_DRV(I915_GEM_INIT
, drm_noop
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
2533 DRM_IOCTL_DEF_DRV(I915_GEM_EXECBUFFER
, i915_gem_execbuffer
, DRM_AUTH
),
2534 DRM_IOCTL_DEF_DRV(I915_GEM_EXECBUFFER2
, i915_gem_execbuffer2
, DRM_AUTH
|DRM_RENDER_ALLOW
),
2535 DRM_IOCTL_DEF_DRV(I915_GEM_PIN
, i915_gem_reject_pin_ioctl
, DRM_AUTH
|DRM_ROOT_ONLY
),
2536 DRM_IOCTL_DEF_DRV(I915_GEM_UNPIN
, i915_gem_reject_pin_ioctl
, DRM_AUTH
|DRM_ROOT_ONLY
),
2537 DRM_IOCTL_DEF_DRV(I915_GEM_BUSY
, i915_gem_busy_ioctl
, DRM_AUTH
|DRM_RENDER_ALLOW
),
2538 DRM_IOCTL_DEF_DRV(I915_GEM_SET_CACHING
, i915_gem_set_caching_ioctl
, DRM_RENDER_ALLOW
),
2539 DRM_IOCTL_DEF_DRV(I915_GEM_GET_CACHING
, i915_gem_get_caching_ioctl
, DRM_RENDER_ALLOW
),
2540 DRM_IOCTL_DEF_DRV(I915_GEM_THROTTLE
, i915_gem_throttle_ioctl
, DRM_AUTH
|DRM_RENDER_ALLOW
),
2541 DRM_IOCTL_DEF_DRV(I915_GEM_ENTERVT
, drm_noop
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
2542 DRM_IOCTL_DEF_DRV(I915_GEM_LEAVEVT
, drm_noop
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
2543 DRM_IOCTL_DEF_DRV(I915_GEM_CREATE
, i915_gem_create_ioctl
, DRM_RENDER_ALLOW
),
2544 DRM_IOCTL_DEF_DRV(I915_GEM_PREAD
, i915_gem_pread_ioctl
, DRM_RENDER_ALLOW
),
2545 DRM_IOCTL_DEF_DRV(I915_GEM_PWRITE
, i915_gem_pwrite_ioctl
, DRM_RENDER_ALLOW
),
2546 DRM_IOCTL_DEF_DRV(I915_GEM_MMAP
, i915_gem_mmap_ioctl
, DRM_RENDER_ALLOW
),
2547 DRM_IOCTL_DEF_DRV(I915_GEM_MMAP_GTT
, i915_gem_mmap_gtt_ioctl
, DRM_RENDER_ALLOW
),
2548 DRM_IOCTL_DEF_DRV(I915_GEM_SET_DOMAIN
, i915_gem_set_domain_ioctl
, DRM_RENDER_ALLOW
),
2549 DRM_IOCTL_DEF_DRV(I915_GEM_SW_FINISH
, i915_gem_sw_finish_ioctl
, DRM_RENDER_ALLOW
),
2550 DRM_IOCTL_DEF_DRV(I915_GEM_SET_TILING
, i915_gem_set_tiling
, DRM_RENDER_ALLOW
),
2551 DRM_IOCTL_DEF_DRV(I915_GEM_GET_TILING
, i915_gem_get_tiling
, DRM_RENDER_ALLOW
),
2552 DRM_IOCTL_DEF_DRV(I915_GEM_GET_APERTURE
, i915_gem_get_aperture_ioctl
, DRM_RENDER_ALLOW
),
2553 DRM_IOCTL_DEF_DRV(I915_GET_PIPE_FROM_CRTC_ID
, intel_get_pipe_from_crtc_id
, 0),
2554 DRM_IOCTL_DEF_DRV(I915_GEM_MADVISE
, i915_gem_madvise_ioctl
, DRM_RENDER_ALLOW
),
2555 DRM_IOCTL_DEF_DRV(I915_OVERLAY_PUT_IMAGE
, intel_overlay_put_image_ioctl
, DRM_MASTER
|DRM_CONTROL_ALLOW
),
2556 DRM_IOCTL_DEF_DRV(I915_OVERLAY_ATTRS
, intel_overlay_attrs_ioctl
, DRM_MASTER
|DRM_CONTROL_ALLOW
),
2557 DRM_IOCTL_DEF_DRV(I915_SET_SPRITE_COLORKEY
, intel_sprite_set_colorkey
, DRM_MASTER
|DRM_CONTROL_ALLOW
),
2558 DRM_IOCTL_DEF_DRV(I915_GET_SPRITE_COLORKEY
, drm_noop
, DRM_MASTER
|DRM_CONTROL_ALLOW
),
2559 DRM_IOCTL_DEF_DRV(I915_GEM_WAIT
, i915_gem_wait_ioctl
, DRM_AUTH
|DRM_RENDER_ALLOW
),
2560 DRM_IOCTL_DEF_DRV(I915_GEM_CONTEXT_CREATE
, i915_gem_context_create_ioctl
, DRM_RENDER_ALLOW
),
2561 DRM_IOCTL_DEF_DRV(I915_GEM_CONTEXT_DESTROY
, i915_gem_context_destroy_ioctl
, DRM_RENDER_ALLOW
),
2562 DRM_IOCTL_DEF_DRV(I915_REG_READ
, i915_reg_read_ioctl
, DRM_RENDER_ALLOW
),
2563 DRM_IOCTL_DEF_DRV(I915_GET_RESET_STATS
, i915_gem_context_reset_stats_ioctl
, DRM_RENDER_ALLOW
),
2564 DRM_IOCTL_DEF_DRV(I915_GEM_USERPTR
, i915_gem_userptr_ioctl
, DRM_RENDER_ALLOW
),
2565 DRM_IOCTL_DEF_DRV(I915_GEM_CONTEXT_GETPARAM
, i915_gem_context_getparam_ioctl
, DRM_RENDER_ALLOW
),
2566 DRM_IOCTL_DEF_DRV(I915_GEM_CONTEXT_SETPARAM
, i915_gem_context_setparam_ioctl
, DRM_RENDER_ALLOW
),
2569 static struct drm_driver driver
= {
2570 /* Don't use MTRRs here; the Xserver or userspace app should
2571 * deal with them for Intel hardware.
2574 DRIVER_HAVE_IRQ
| DRIVER_IRQ_SHARED
| DRIVER_GEM
| DRIVER_PRIME
|
2575 DRIVER_RENDER
| DRIVER_MODESET
,
2576 .open
= i915_driver_open
,
2577 .lastclose
= i915_driver_lastclose
,
2578 .preclose
= i915_driver_preclose
,
2579 .postclose
= i915_driver_postclose
,
2580 .set_busid
= drm_pci_set_busid
,
2582 .gem_close_object
= i915_gem_close_object
,
2583 .gem_free_object_unlocked
= i915_gem_free_object
,
2584 .gem_vm_ops
= &i915_gem_vm_ops
,
2586 .prime_handle_to_fd
= drm_gem_prime_handle_to_fd
,
2587 .prime_fd_to_handle
= drm_gem_prime_fd_to_handle
,
2588 .gem_prime_export
= i915_gem_prime_export
,
2589 .gem_prime_import
= i915_gem_prime_import
,
2591 .dumb_create
= i915_gem_dumb_create
,
2592 .dumb_map_offset
= i915_gem_mmap_gtt
,
2593 .dumb_destroy
= drm_gem_dumb_destroy
,
2594 .ioctls
= i915_ioctls
,
2595 .num_ioctls
= ARRAY_SIZE(i915_ioctls
),
2596 .fops
= &i915_driver_fops
,
2597 .name
= DRIVER_NAME
,
2598 .desc
= DRIVER_DESC
,
2599 .date
= DRIVER_DATE
,
2600 .major
= DRIVER_MAJOR
,
2601 .minor
= DRIVER_MINOR
,
2602 .patchlevel
= DRIVER_PATCHLEVEL
,