1 /* i915_dma.c -- DMA support for the I915 -*- linux-c -*-
4 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
32 #include <drm/drm_crtc_helper.h>
33 #include <drm/drm_fb_helper.h>
34 #include <drm/drm_legacy.h>
35 #include "intel_drv.h"
36 #include <drm/i915_drm.h>
38 #include "i915_vgpu.h"
39 #include "i915_trace.h"
40 #include <linux/pci.h>
41 #include <linux/console.h>
43 #include <linux/vgaarb.h>
44 #include <linux/acpi.h>
45 #include <linux/pnp.h>
46 #include <linux/vga_switcheroo.h>
47 #include <linux/slab.h>
48 #include <acpi/video.h>
50 #include <linux/pm_runtime.h>
51 #include <linux/oom.h>
53 static unsigned int i915_load_fail_count
;
55 bool __i915_inject_load_failure(const char *func
, int line
)
57 if (i915_load_fail_count
>= i915
.inject_load_failure
)
60 if (++i915_load_fail_count
== i915
.inject_load_failure
) {
61 DRM_INFO("Injecting failure at checkpoint %u [%s:%d]\n",
62 i915
.inject_load_failure
, func
, line
);
69 #define FDO_BUG_URL "https://bugs.freedesktop.org/enter_bug.cgi?product=DRI"
70 #define FDO_BUG_MSG "Please file a bug at " FDO_BUG_URL " against DRM/Intel " \
71 "providing the dmesg log by booting with drm.debug=0xf"
74 __i915_printk(struct drm_i915_private
*dev_priv
, const char *level
,
77 static bool shown_bug_once
;
78 struct device
*dev
= dev_priv
->dev
->dev
;
79 bool is_error
= level
[1] <= KERN_ERR
[1];
80 bool is_debug
= level
[1] == KERN_DEBUG
[1];
84 if (is_debug
&& !(drm_debug
& DRM_UT_DRIVER
))
92 dev_printk(level
, dev
, "[" DRM_NAME
":%ps] %pV",
93 __builtin_return_address(0), &vaf
);
95 if (is_error
&& !shown_bug_once
) {
96 dev_notice(dev
, "%s", FDO_BUG_MSG
);
97 shown_bug_once
= true;
103 static bool i915_error_injected(struct drm_i915_private
*dev_priv
)
105 return i915
.inject_load_failure
&&
106 i915_load_fail_count
== i915
.inject_load_failure
;
109 #define i915_load_error(dev_priv, fmt, ...) \
110 __i915_printk(dev_priv, \
111 i915_error_injected(dev_priv) ? KERN_DEBUG : KERN_ERR, \
114 static int i915_getparam(struct drm_device
*dev
, void *data
,
115 struct drm_file
*file_priv
)
117 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
118 drm_i915_getparam_t
*param
= data
;
121 switch (param
->param
) {
122 case I915_PARAM_IRQ_ACTIVE
:
123 case I915_PARAM_ALLOW_BATCHBUFFER
:
124 case I915_PARAM_LAST_DISPATCH
:
125 /* Reject all old ums/dri params. */
127 case I915_PARAM_CHIPSET_ID
:
128 value
= dev
->pdev
->device
;
130 case I915_PARAM_REVISION
:
131 value
= dev
->pdev
->revision
;
133 case I915_PARAM_HAS_GEM
:
136 case I915_PARAM_NUM_FENCES_AVAIL
:
137 value
= dev_priv
->num_fence_regs
;
139 case I915_PARAM_HAS_OVERLAY
:
140 value
= dev_priv
->overlay
? 1 : 0;
142 case I915_PARAM_HAS_PAGEFLIPPING
:
145 case I915_PARAM_HAS_EXECBUF2
:
149 case I915_PARAM_HAS_BSD
:
150 value
= intel_engine_initialized(&dev_priv
->engine
[VCS
]);
152 case I915_PARAM_HAS_BLT
:
153 value
= intel_engine_initialized(&dev_priv
->engine
[BCS
]);
155 case I915_PARAM_HAS_VEBOX
:
156 value
= intel_engine_initialized(&dev_priv
->engine
[VECS
]);
158 case I915_PARAM_HAS_BSD2
:
159 value
= intel_engine_initialized(&dev_priv
->engine
[VCS2
]);
161 case I915_PARAM_HAS_RELAXED_FENCING
:
164 case I915_PARAM_HAS_COHERENT_RINGS
:
167 case I915_PARAM_HAS_EXEC_CONSTANTS
:
168 value
= INTEL_INFO(dev
)->gen
>= 4;
170 case I915_PARAM_HAS_RELAXED_DELTA
:
173 case I915_PARAM_HAS_GEN7_SOL_RESET
:
176 case I915_PARAM_HAS_LLC
:
177 value
= HAS_LLC(dev
);
179 case I915_PARAM_HAS_WT
:
182 case I915_PARAM_HAS_ALIASING_PPGTT
:
183 value
= USES_PPGTT(dev
);
185 case I915_PARAM_HAS_WAIT_TIMEOUT
:
188 case I915_PARAM_HAS_SEMAPHORES
:
189 value
= i915_semaphore_is_enabled(dev
);
191 case I915_PARAM_HAS_PRIME_VMAP_FLUSH
:
194 case I915_PARAM_HAS_SECURE_BATCHES
:
195 value
= capable(CAP_SYS_ADMIN
);
197 case I915_PARAM_HAS_PINNED_BATCHES
:
200 case I915_PARAM_HAS_EXEC_NO_RELOC
:
203 case I915_PARAM_HAS_EXEC_HANDLE_LUT
:
206 case I915_PARAM_CMD_PARSER_VERSION
:
207 value
= i915_cmd_parser_get_version();
209 case I915_PARAM_HAS_COHERENT_PHYS_GTT
:
212 case I915_PARAM_MMAP_VERSION
:
215 case I915_PARAM_SUBSLICE_TOTAL
:
216 value
= INTEL_INFO(dev
)->subslice_total
;
220 case I915_PARAM_EU_TOTAL
:
221 value
= INTEL_INFO(dev
)->eu_total
;
225 case I915_PARAM_HAS_GPU_RESET
:
226 value
= i915
.enable_hangcheck
&&
227 intel_has_gpu_reset(dev
);
229 case I915_PARAM_HAS_RESOURCE_STREAMER
:
230 value
= HAS_RESOURCE_STREAMER(dev
);
232 case I915_PARAM_HAS_EXEC_SOFTPIN
:
236 DRM_DEBUG("Unknown parameter %d\n", param
->param
);
240 if (copy_to_user(param
->value
, &value
, sizeof(int))) {
241 DRM_ERROR("copy_to_user failed\n");
248 static int i915_get_bridge_dev(struct drm_device
*dev
)
250 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
252 dev_priv
->bridge_dev
= pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
253 if (!dev_priv
->bridge_dev
) {
254 DRM_ERROR("bridge device not found\n");
260 #define MCHBAR_I915 0x44
261 #define MCHBAR_I965 0x48
262 #define MCHBAR_SIZE (4*4096)
264 #define DEVEN_REG 0x54
265 #define DEVEN_MCHBAR_EN (1 << 28)
267 /* Allocate space for the MCH regs if needed, return nonzero on error */
269 intel_alloc_mchbar_resource(struct drm_device
*dev
)
271 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
272 int reg
= INTEL_INFO(dev
)->gen
>= 4 ? MCHBAR_I965
: MCHBAR_I915
;
273 u32 temp_lo
, temp_hi
= 0;
277 if (INTEL_INFO(dev
)->gen
>= 4)
278 pci_read_config_dword(dev_priv
->bridge_dev
, reg
+ 4, &temp_hi
);
279 pci_read_config_dword(dev_priv
->bridge_dev
, reg
, &temp_lo
);
280 mchbar_addr
= ((u64
)temp_hi
<< 32) | temp_lo
;
282 /* If ACPI doesn't have it, assume we need to allocate it ourselves */
285 pnp_range_reserved(mchbar_addr
, mchbar_addr
+ MCHBAR_SIZE
))
289 /* Get some space for it */
290 dev_priv
->mch_res
.name
= "i915 MCHBAR";
291 dev_priv
->mch_res
.flags
= IORESOURCE_MEM
;
292 ret
= pci_bus_alloc_resource(dev_priv
->bridge_dev
->bus
,
294 MCHBAR_SIZE
, MCHBAR_SIZE
,
296 0, pcibios_align_resource
,
297 dev_priv
->bridge_dev
);
299 DRM_DEBUG_DRIVER("failed bus alloc: %d\n", ret
);
300 dev_priv
->mch_res
.start
= 0;
304 if (INTEL_INFO(dev
)->gen
>= 4)
305 pci_write_config_dword(dev_priv
->bridge_dev
, reg
+ 4,
306 upper_32_bits(dev_priv
->mch_res
.start
));
308 pci_write_config_dword(dev_priv
->bridge_dev
, reg
,
309 lower_32_bits(dev_priv
->mch_res
.start
));
313 /* Setup MCHBAR if possible, return true if we should disable it again */
315 intel_setup_mchbar(struct drm_device
*dev
)
317 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
318 int mchbar_reg
= INTEL_INFO(dev
)->gen
>= 4 ? MCHBAR_I965
: MCHBAR_I915
;
322 if (IS_VALLEYVIEW(dev
) || IS_CHERRYVIEW(dev
))
325 dev_priv
->mchbar_need_disable
= false;
327 if (IS_I915G(dev
) || IS_I915GM(dev
)) {
328 pci_read_config_dword(dev_priv
->bridge_dev
, DEVEN_REG
, &temp
);
329 enabled
= !!(temp
& DEVEN_MCHBAR_EN
);
331 pci_read_config_dword(dev_priv
->bridge_dev
, mchbar_reg
, &temp
);
335 /* If it's already enabled, don't have to do anything */
339 if (intel_alloc_mchbar_resource(dev
))
342 dev_priv
->mchbar_need_disable
= true;
344 /* Space is allocated or reserved, so enable it. */
345 if (IS_I915G(dev
) || IS_I915GM(dev
)) {
346 pci_write_config_dword(dev_priv
->bridge_dev
, DEVEN_REG
,
347 temp
| DEVEN_MCHBAR_EN
);
349 pci_read_config_dword(dev_priv
->bridge_dev
, mchbar_reg
, &temp
);
350 pci_write_config_dword(dev_priv
->bridge_dev
, mchbar_reg
, temp
| 1);
355 intel_teardown_mchbar(struct drm_device
*dev
)
357 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
358 int mchbar_reg
= INTEL_INFO(dev
)->gen
>= 4 ? MCHBAR_I965
: MCHBAR_I915
;
361 if (dev_priv
->mchbar_need_disable
) {
362 if (IS_I915G(dev
) || IS_I915GM(dev
)) {
363 pci_read_config_dword(dev_priv
->bridge_dev
, DEVEN_REG
, &temp
);
364 temp
&= ~DEVEN_MCHBAR_EN
;
365 pci_write_config_dword(dev_priv
->bridge_dev
, DEVEN_REG
, temp
);
367 pci_read_config_dword(dev_priv
->bridge_dev
, mchbar_reg
, &temp
);
369 pci_write_config_dword(dev_priv
->bridge_dev
, mchbar_reg
, temp
);
373 if (dev_priv
->mch_res
.start
)
374 release_resource(&dev_priv
->mch_res
);
377 /* true = enable decode, false = disable decoder */
378 static unsigned int i915_vga_set_decode(void *cookie
, bool state
)
380 struct drm_device
*dev
= cookie
;
382 intel_modeset_vga_set_state(dev
, state
);
384 return VGA_RSRC_LEGACY_IO
| VGA_RSRC_LEGACY_MEM
|
385 VGA_RSRC_NORMAL_IO
| VGA_RSRC_NORMAL_MEM
;
387 return VGA_RSRC_NORMAL_IO
| VGA_RSRC_NORMAL_MEM
;
390 static void i915_switcheroo_set_state(struct pci_dev
*pdev
, enum vga_switcheroo_state state
)
392 struct drm_device
*dev
= pci_get_drvdata(pdev
);
393 pm_message_t pmm
= { .event
= PM_EVENT_SUSPEND
};
395 if (state
== VGA_SWITCHEROO_ON
) {
396 pr_info("switched on\n");
397 dev
->switch_power_state
= DRM_SWITCH_POWER_CHANGING
;
398 /* i915 resume handler doesn't set to D0 */
399 pci_set_power_state(dev
->pdev
, PCI_D0
);
400 i915_resume_switcheroo(dev
);
401 dev
->switch_power_state
= DRM_SWITCH_POWER_ON
;
403 pr_info("switched off\n");
404 dev
->switch_power_state
= DRM_SWITCH_POWER_CHANGING
;
405 i915_suspend_switcheroo(dev
, pmm
);
406 dev
->switch_power_state
= DRM_SWITCH_POWER_OFF
;
410 static bool i915_switcheroo_can_switch(struct pci_dev
*pdev
)
412 struct drm_device
*dev
= pci_get_drvdata(pdev
);
415 * FIXME: open_count is protected by drm_global_mutex but that would lead to
416 * locking inversion with the driver load path. And the access here is
417 * completely racy anyway. So don't bother with locking for now.
419 return dev
->open_count
== 0;
422 static const struct vga_switcheroo_client_ops i915_switcheroo_ops
= {
423 .set_gpu_state
= i915_switcheroo_set_state
,
425 .can_switch
= i915_switcheroo_can_switch
,
428 static int i915_load_modeset_init(struct drm_device
*dev
)
430 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
433 if (i915_inject_load_failure())
436 ret
= intel_bios_init(dev_priv
);
438 DRM_INFO("failed to find VBIOS tables\n");
440 /* If we have > 1 VGA cards, then we need to arbitrate access
441 * to the common VGA resources.
443 * If we are a secondary display controller (!PCI_DISPLAY_CLASS_VGA),
444 * then we do not take part in VGA arbitration and the
445 * vga_client_register() fails with -ENODEV.
447 ret
= vga_client_register(dev
->pdev
, dev
, NULL
, i915_vga_set_decode
);
448 if (ret
&& ret
!= -ENODEV
)
451 intel_register_dsm_handler();
453 ret
= vga_switcheroo_register_client(dev
->pdev
, &i915_switcheroo_ops
, false);
455 goto cleanup_vga_client
;
457 intel_power_domains_init_hw(dev_priv
, false);
459 intel_csr_ucode_init(dev_priv
);
461 ret
= intel_irq_install(dev_priv
);
465 intel_setup_gmbus(dev
);
467 /* Important: The output setup functions called by modeset_init need
468 * working irqs for e.g. gmbus and dp aux transfers. */
469 intel_modeset_init(dev
);
471 intel_guc_ucode_init(dev
);
473 ret
= i915_gem_init(dev
);
477 intel_modeset_gem_init(dev
);
479 /* Always safe in the mode setting case. */
480 /* FIXME: do pre/post-mode set stuff in core KMS code */
481 dev
->vblank_disable_allowed
= true;
482 if (INTEL_INFO(dev
)->num_pipes
== 0)
485 ret
= intel_fbdev_init(dev
);
489 /* Only enable hotplug handling once the fbdev is fully set up. */
490 intel_hpd_init(dev_priv
);
493 * Some ports require correctly set-up hpd registers for detection to
494 * work properly (leading to ghost connected connector status), e.g. VGA
495 * on gm45. Hence we can only set up the initial fbdev config after hpd
496 * irqs are fully enabled. Now we should scan for the initial config
497 * only once hotplug handling is enabled, but due to screwed-up locking
498 * around kms/fbdev init we can't protect the fdbev initial config
499 * scanning against hotplug events. Hence do this first and ignore the
500 * tiny window where we will loose hotplug notifactions.
502 intel_fbdev_initial_config_async(dev
);
504 drm_kms_helper_poll_init(dev
);
509 mutex_lock(&dev
->struct_mutex
);
510 i915_gem_cleanup_engines(dev
);
511 i915_gem_context_fini(dev
);
512 mutex_unlock(&dev
->struct_mutex
);
514 intel_guc_ucode_fini(dev
);
515 drm_irq_uninstall(dev
);
516 intel_teardown_gmbus(dev
);
518 intel_csr_ucode_fini(dev_priv
);
519 intel_power_domains_fini(dev_priv
);
520 vga_switcheroo_unregister_client(dev
->pdev
);
522 vga_client_register(dev
->pdev
, NULL
, NULL
, NULL
);
527 #if IS_ENABLED(CONFIG_FB)
528 static int i915_kick_out_firmware_fb(struct drm_i915_private
*dev_priv
)
530 struct apertures_struct
*ap
;
531 struct pci_dev
*pdev
= dev_priv
->dev
->pdev
;
532 struct i915_ggtt
*ggtt
= &dev_priv
->ggtt
;
536 ap
= alloc_apertures(1);
540 ap
->ranges
[0].base
= ggtt
->mappable_base
;
541 ap
->ranges
[0].size
= ggtt
->mappable_end
;
544 pdev
->resource
[PCI_ROM_RESOURCE
].flags
& IORESOURCE_ROM_SHADOW
;
546 ret
= remove_conflicting_framebuffers(ap
, "inteldrmfb", primary
);
553 static int i915_kick_out_firmware_fb(struct drm_i915_private
*dev_priv
)
559 #if !defined(CONFIG_VGA_CONSOLE)
560 static int i915_kick_out_vgacon(struct drm_i915_private
*dev_priv
)
564 #elif !defined(CONFIG_DUMMY_CONSOLE)
565 static int i915_kick_out_vgacon(struct drm_i915_private
*dev_priv
)
570 static int i915_kick_out_vgacon(struct drm_i915_private
*dev_priv
)
574 DRM_INFO("Replacing VGA console driver\n");
577 if (con_is_bound(&vga_con
))
578 ret
= do_take_over_console(&dummy_con
, 0, MAX_NR_CONSOLES
- 1, 1);
580 ret
= do_unregister_con_driver(&vga_con
);
582 /* Ignore "already unregistered". */
592 static void i915_dump_device_info(struct drm_i915_private
*dev_priv
)
594 const struct intel_device_info
*info
= &dev_priv
->info
;
596 #define PRINT_S(name) "%s"
598 #define PRINT_FLAG(name) info->name ? #name "," : ""
600 DRM_DEBUG_DRIVER("i915 device info: gen=%i, pciid=0x%04x rev=0x%02x flags="
601 DEV_INFO_FOR_EACH_FLAG(PRINT_S
, SEP_EMPTY
),
603 dev_priv
->dev
->pdev
->device
,
604 dev_priv
->dev
->pdev
->revision
,
605 DEV_INFO_FOR_EACH_FLAG(PRINT_FLAG
, SEP_COMMA
));
612 static void cherryview_sseu_info_init(struct drm_device
*dev
)
614 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
615 struct intel_device_info
*info
;
618 info
= (struct intel_device_info
*)&dev_priv
->info
;
619 fuse
= I915_READ(CHV_FUSE_GT
);
621 info
->slice_total
= 1;
623 if (!(fuse
& CHV_FGT_DISABLE_SS0
)) {
624 info
->subslice_per_slice
++;
625 eu_dis
= fuse
& (CHV_FGT_EU_DIS_SS0_R0_MASK
|
626 CHV_FGT_EU_DIS_SS0_R1_MASK
);
627 info
->eu_total
+= 8 - hweight32(eu_dis
);
630 if (!(fuse
& CHV_FGT_DISABLE_SS1
)) {
631 info
->subslice_per_slice
++;
632 eu_dis
= fuse
& (CHV_FGT_EU_DIS_SS1_R0_MASK
|
633 CHV_FGT_EU_DIS_SS1_R1_MASK
);
634 info
->eu_total
+= 8 - hweight32(eu_dis
);
637 info
->subslice_total
= info
->subslice_per_slice
;
639 * CHV expected to always have a uniform distribution of EU
642 info
->eu_per_subslice
= info
->subslice_total
?
643 info
->eu_total
/ info
->subslice_total
:
646 * CHV supports subslice power gating on devices with more than
647 * one subslice, and supports EU power gating on devices with
648 * more than one EU pair per subslice.
650 info
->has_slice_pg
= 0;
651 info
->has_subslice_pg
= (info
->subslice_total
> 1);
652 info
->has_eu_pg
= (info
->eu_per_subslice
> 2);
655 static void gen9_sseu_info_init(struct drm_device
*dev
)
657 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
658 struct intel_device_info
*info
;
659 int s_max
= 3, ss_max
= 4, eu_max
= 8;
661 u32 fuse2
, s_enable
, ss_disable
, eu_disable
;
664 info
= (struct intel_device_info
*)&dev_priv
->info
;
665 fuse2
= I915_READ(GEN8_FUSE2
);
666 s_enable
= (fuse2
& GEN8_F2_S_ENA_MASK
) >>
668 ss_disable
= (fuse2
& GEN9_F2_SS_DIS_MASK
) >>
669 GEN9_F2_SS_DIS_SHIFT
;
671 info
->slice_total
= hweight32(s_enable
);
673 * The subslice disable field is global, i.e. it applies
674 * to each of the enabled slices.
676 info
->subslice_per_slice
= ss_max
- hweight32(ss_disable
);
677 info
->subslice_total
= info
->slice_total
*
678 info
->subslice_per_slice
;
681 * Iterate through enabled slices and subslices to
682 * count the total enabled EU.
684 for (s
= 0; s
< s_max
; s
++) {
685 if (!(s_enable
& (0x1 << s
)))
686 /* skip disabled slice */
689 eu_disable
= I915_READ(GEN9_EU_DISABLE(s
));
690 for (ss
= 0; ss
< ss_max
; ss
++) {
693 if (ss_disable
& (0x1 << ss
))
694 /* skip disabled subslice */
697 eu_per_ss
= eu_max
- hweight8((eu_disable
>> (ss
*8)) &
701 * Record which subslice(s) has(have) 7 EUs. we
702 * can tune the hash used to spread work among
703 * subslices if they are unbalanced.
706 info
->subslice_7eu
[s
] |= 1 << ss
;
708 info
->eu_total
+= eu_per_ss
;
713 * SKL is expected to always have a uniform distribution
714 * of EU across subslices with the exception that any one
715 * EU in any one subslice may be fused off for die
716 * recovery. BXT is expected to be perfectly uniform in EU
719 info
->eu_per_subslice
= info
->subslice_total
?
720 DIV_ROUND_UP(info
->eu_total
,
721 info
->subslice_total
) : 0;
723 * SKL supports slice power gating on devices with more than
724 * one slice, and supports EU power gating on devices with
725 * more than one EU pair per subslice. BXT supports subslice
726 * power gating on devices with more than one subslice, and
727 * supports EU power gating on devices with more than one EU
730 info
->has_slice_pg
= ((IS_SKYLAKE(dev
) || IS_KABYLAKE(dev
)) &&
731 (info
->slice_total
> 1));
732 info
->has_subslice_pg
= (IS_BROXTON(dev
) && (info
->subslice_total
> 1));
733 info
->has_eu_pg
= (info
->eu_per_subslice
> 2);
736 static void broadwell_sseu_info_init(struct drm_device
*dev
)
738 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
739 struct intel_device_info
*info
;
740 const int s_max
= 3, ss_max
= 3, eu_max
= 8;
742 u32 fuse2
, eu_disable
[s_max
], s_enable
, ss_disable
;
744 fuse2
= I915_READ(GEN8_FUSE2
);
745 s_enable
= (fuse2
& GEN8_F2_S_ENA_MASK
) >> GEN8_F2_S_ENA_SHIFT
;
746 ss_disable
= (fuse2
& GEN8_F2_SS_DIS_MASK
) >> GEN8_F2_SS_DIS_SHIFT
;
748 eu_disable
[0] = I915_READ(GEN8_EU_DISABLE0
) & GEN8_EU_DIS0_S0_MASK
;
749 eu_disable
[1] = (I915_READ(GEN8_EU_DISABLE0
) >> GEN8_EU_DIS0_S1_SHIFT
) |
750 ((I915_READ(GEN8_EU_DISABLE1
) & GEN8_EU_DIS1_S1_MASK
) <<
751 (32 - GEN8_EU_DIS0_S1_SHIFT
));
752 eu_disable
[2] = (I915_READ(GEN8_EU_DISABLE1
) >> GEN8_EU_DIS1_S2_SHIFT
) |
753 ((I915_READ(GEN8_EU_DISABLE2
) & GEN8_EU_DIS2_S2_MASK
) <<
754 (32 - GEN8_EU_DIS1_S2_SHIFT
));
757 info
= (struct intel_device_info
*)&dev_priv
->info
;
758 info
->slice_total
= hweight32(s_enable
);
761 * The subslice disable field is global, i.e. it applies
762 * to each of the enabled slices.
764 info
->subslice_per_slice
= ss_max
- hweight32(ss_disable
);
765 info
->subslice_total
= info
->slice_total
* info
->subslice_per_slice
;
768 * Iterate through enabled slices and subslices to
769 * count the total enabled EU.
771 for (s
= 0; s
< s_max
; s
++) {
772 if (!(s_enable
& (0x1 << s
)))
773 /* skip disabled slice */
776 for (ss
= 0; ss
< ss_max
; ss
++) {
779 if (ss_disable
& (0x1 << ss
))
780 /* skip disabled subslice */
783 n_disabled
= hweight8(eu_disable
[s
] >> (ss
* eu_max
));
786 * Record which subslices have 7 EUs.
788 if (eu_max
- n_disabled
== 7)
789 info
->subslice_7eu
[s
] |= 1 << ss
;
791 info
->eu_total
+= eu_max
- n_disabled
;
796 * BDW is expected to always have a uniform distribution of EU across
797 * subslices with the exception that any one EU in any one subslice may
798 * be fused off for die recovery.
800 info
->eu_per_subslice
= info
->subslice_total
?
801 DIV_ROUND_UP(info
->eu_total
, info
->subslice_total
) : 0;
804 * BDW supports slice power gating on devices with more than
807 info
->has_slice_pg
= (info
->slice_total
> 1);
808 info
->has_subslice_pg
= 0;
813 * Determine various intel_device_info fields at runtime.
815 * Use it when either:
816 * - it's judged too laborious to fill n static structures with the limit
817 * when a simple if statement does the job,
818 * - run-time checks (eg read fuse/strap registers) are needed.
820 * This function needs to be called:
821 * - after the MMIO has been setup as we are reading registers,
822 * - after the PCH has been detected,
823 * - before the first usage of the fields it can tweak.
825 static void intel_device_info_runtime_init(struct drm_device
*dev
)
827 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
828 struct intel_device_info
*info
;
831 info
= (struct intel_device_info
*)&dev_priv
->info
;
834 * Skylake and Broxton currently don't expose the topmost plane as its
835 * use is exclusive with the legacy cursor and we only want to expose
836 * one of those, not both. Until we can safely expose the topmost plane
837 * as a DRM_PLANE_TYPE_CURSOR with all the features exposed/supported,
838 * we don't expose the topmost plane at all to prevent ABI breakage
841 if (IS_BROXTON(dev
)) {
842 info
->num_sprites
[PIPE_A
] = 2;
843 info
->num_sprites
[PIPE_B
] = 2;
844 info
->num_sprites
[PIPE_C
] = 1;
845 } else if (IS_VALLEYVIEW(dev
) || IS_CHERRYVIEW(dev
))
846 for_each_pipe(dev_priv
, pipe
)
847 info
->num_sprites
[pipe
] = 2;
849 for_each_pipe(dev_priv
, pipe
)
850 info
->num_sprites
[pipe
] = 1;
852 if (i915
.disable_display
) {
853 DRM_INFO("Display disabled (module parameter)\n");
855 } else if (info
->num_pipes
> 0 &&
856 (INTEL_INFO(dev
)->gen
== 7 || INTEL_INFO(dev
)->gen
== 8) &&
857 HAS_PCH_SPLIT(dev
)) {
858 u32 fuse_strap
= I915_READ(FUSE_STRAP
);
859 u32 sfuse_strap
= I915_READ(SFUSE_STRAP
);
862 * SFUSE_STRAP is supposed to have a bit signalling the display
863 * is fused off. Unfortunately it seems that, at least in
864 * certain cases, fused off display means that PCH display
865 * reads don't land anywhere. In that case, we read 0s.
867 * On CPT/PPT, we can detect this case as SFUSE_STRAP_FUSE_LOCK
868 * should be set when taking over after the firmware.
870 if (fuse_strap
& ILK_INTERNAL_DISPLAY_DISABLE
||
871 sfuse_strap
& SFUSE_STRAP_DISPLAY_DISABLED
||
872 (dev_priv
->pch_type
== PCH_CPT
&&
873 !(sfuse_strap
& SFUSE_STRAP_FUSE_LOCK
))) {
874 DRM_INFO("Display fused off, disabling\n");
876 } else if (fuse_strap
& IVB_PIPE_C_DISABLE
) {
877 DRM_INFO("PipeC fused off\n");
878 info
->num_pipes
-= 1;
880 } else if (info
->num_pipes
> 0 && INTEL_INFO(dev
)->gen
== 9) {
881 u32 dfsm
= I915_READ(SKL_DFSM
);
882 u8 disabled_mask
= 0;
886 if (dfsm
& SKL_DFSM_PIPE_A_DISABLE
)
887 disabled_mask
|= BIT(PIPE_A
);
888 if (dfsm
& SKL_DFSM_PIPE_B_DISABLE
)
889 disabled_mask
|= BIT(PIPE_B
);
890 if (dfsm
& SKL_DFSM_PIPE_C_DISABLE
)
891 disabled_mask
|= BIT(PIPE_C
);
893 num_bits
= hweight8(disabled_mask
);
895 switch (disabled_mask
) {
898 case BIT(PIPE_A
) | BIT(PIPE_B
):
899 case BIT(PIPE_A
) | BIT(PIPE_C
):
906 if (num_bits
> info
->num_pipes
|| invalid
)
907 DRM_ERROR("invalid pipe fuse configuration: 0x%x\n",
910 info
->num_pipes
-= num_bits
;
913 /* Initialize slice/subslice/EU info */
914 if (IS_CHERRYVIEW(dev
))
915 cherryview_sseu_info_init(dev
);
916 else if (IS_BROADWELL(dev
))
917 broadwell_sseu_info_init(dev
);
918 else if (INTEL_INFO(dev
)->gen
>= 9)
919 gen9_sseu_info_init(dev
);
921 /* Snooping is broken on BXT A stepping. */
922 info
->has_snoop
= !info
->has_llc
;
923 info
->has_snoop
&= !IS_BXT_REVID(dev
, 0, BXT_REVID_A1
);
925 DRM_DEBUG_DRIVER("slice total: %u\n", info
->slice_total
);
926 DRM_DEBUG_DRIVER("subslice total: %u\n", info
->subslice_total
);
927 DRM_DEBUG_DRIVER("subslice per slice: %u\n", info
->subslice_per_slice
);
928 DRM_DEBUG_DRIVER("EU total: %u\n", info
->eu_total
);
929 DRM_DEBUG_DRIVER("EU per subslice: %u\n", info
->eu_per_subslice
);
930 DRM_DEBUG_DRIVER("has slice power gating: %s\n",
931 info
->has_slice_pg
? "y" : "n");
932 DRM_DEBUG_DRIVER("has subslice power gating: %s\n",
933 info
->has_subslice_pg
? "y" : "n");
934 DRM_DEBUG_DRIVER("has EU power gating: %s\n",
935 info
->has_eu_pg
? "y" : "n");
938 static void intel_init_dpio(struct drm_i915_private
*dev_priv
)
941 * IOSF_PORT_DPIO is used for VLV x2 PHY (DP/HDMI B and C),
942 * CHV x1 PHY (DP/HDMI D)
943 * IOSF_PORT_DPIO_2 is used for CHV x2 PHY (DP/HDMI B and C)
945 if (IS_CHERRYVIEW(dev_priv
)) {
946 DPIO_PHY_IOSF_PORT(DPIO_PHY0
) = IOSF_PORT_DPIO_2
;
947 DPIO_PHY_IOSF_PORT(DPIO_PHY1
) = IOSF_PORT_DPIO
;
948 } else if (IS_VALLEYVIEW(dev_priv
)) {
949 DPIO_PHY_IOSF_PORT(DPIO_PHY0
) = IOSF_PORT_DPIO
;
953 static int i915_workqueues_init(struct drm_i915_private
*dev_priv
)
956 * The i915 workqueue is primarily used for batched retirement of
957 * requests (and thus managing bo) once the task has been completed
958 * by the GPU. i915_gem_retire_requests() is called directly when we
959 * need high-priority retirement, such as waiting for an explicit
962 * It is also used for periodic low-priority events, such as
963 * idle-timers and recording error state.
965 * All tasks on the workqueue are expected to acquire the dev mutex
966 * so there is no point in running more than one instance of the
967 * workqueue at any time. Use an ordered one.
969 dev_priv
->wq
= alloc_ordered_workqueue("i915", 0);
970 if (dev_priv
->wq
== NULL
)
973 dev_priv
->hotplug
.dp_wq
= alloc_ordered_workqueue("i915-dp", 0);
974 if (dev_priv
->hotplug
.dp_wq
== NULL
)
977 dev_priv
->gpu_error
.hangcheck_wq
=
978 alloc_ordered_workqueue("i915-hangcheck", 0);
979 if (dev_priv
->gpu_error
.hangcheck_wq
== NULL
)
985 destroy_workqueue(dev_priv
->hotplug
.dp_wq
);
987 destroy_workqueue(dev_priv
->wq
);
989 DRM_ERROR("Failed to allocate workqueues.\n");
994 static void i915_workqueues_cleanup(struct drm_i915_private
*dev_priv
)
996 destroy_workqueue(dev_priv
->gpu_error
.hangcheck_wq
);
997 destroy_workqueue(dev_priv
->hotplug
.dp_wq
);
998 destroy_workqueue(dev_priv
->wq
);
1002 * i915_driver_init_early - setup state not requiring device access
1003 * @dev_priv: device private
1005 * Initialize everything that is a "SW-only" state, that is state not
1006 * requiring accessing the device or exposing the driver via kernel internal
1007 * or userspace interfaces. Example steps belonging here: lock initialization,
1008 * system memory allocation, setting up device specific attributes and
1009 * function hooks not requiring accessing the device.
1011 static int i915_driver_init_early(struct drm_i915_private
*dev_priv
,
1012 struct drm_device
*dev
,
1013 struct intel_device_info
*info
)
1015 struct intel_device_info
*device_info
;
1018 if (i915_inject_load_failure())
1021 /* Setup the write-once "constant" device info */
1022 device_info
= (struct intel_device_info
*)&dev_priv
->info
;
1023 memcpy(device_info
, info
, sizeof(dev_priv
->info
));
1024 device_info
->device_id
= dev
->pdev
->device
;
1026 spin_lock_init(&dev_priv
->irq_lock
);
1027 spin_lock_init(&dev_priv
->gpu_error
.lock
);
1028 mutex_init(&dev_priv
->backlight_lock
);
1029 spin_lock_init(&dev_priv
->uncore
.lock
);
1030 spin_lock_init(&dev_priv
->mm
.object_stat_lock
);
1031 spin_lock_init(&dev_priv
->mmio_flip_lock
);
1032 mutex_init(&dev_priv
->sb_lock
);
1033 mutex_init(&dev_priv
->modeset_restore_lock
);
1034 mutex_init(&dev_priv
->av_mutex
);
1035 mutex_init(&dev_priv
->wm
.wm_mutex
);
1036 mutex_init(&dev_priv
->pps_mutex
);
1038 ret
= i915_workqueues_init(dev_priv
);
1042 /* This must be called before any calls to HAS_PCH_* */
1043 intel_detect_pch(dev
);
1045 intel_pm_setup(dev
);
1046 intel_init_dpio(dev_priv
);
1047 intel_power_domains_init(dev_priv
);
1048 intel_irq_init(dev_priv
);
1049 intel_init_display_hooks(dev_priv
);
1050 intel_init_clock_gating_hooks(dev_priv
);
1051 intel_init_audio_hooks(dev_priv
);
1052 i915_gem_load_init(dev
);
1054 intel_display_crc_init(dev
);
1056 i915_dump_device_info(dev_priv
);
1058 /* Not all pre-production machines fall into this category, only the
1059 * very first ones. Almost everything should work, except for maybe
1060 * suspend/resume. And we don't implement workarounds that affect only
1061 * pre-production machines. */
1062 if (IS_HSW_EARLY_SDV(dev
))
1063 DRM_INFO("This is an early pre-production Haswell machine. "
1064 "It may not be fully functional.\n");
1070 * i915_driver_cleanup_early - cleanup the setup done in i915_driver_init_early()
1071 * @dev_priv: device private
1073 static void i915_driver_cleanup_early(struct drm_i915_private
*dev_priv
)
1075 i915_gem_load_cleanup(dev_priv
->dev
);
1076 i915_workqueues_cleanup(dev_priv
);
1079 static int i915_mmio_setup(struct drm_device
*dev
)
1081 struct drm_i915_private
*dev_priv
= to_i915(dev
);
1085 mmio_bar
= IS_GEN2(dev
) ? 1 : 0;
1087 * Before gen4, the registers and the GTT are behind different BARs.
1088 * However, from gen4 onwards, the registers and the GTT are shared
1089 * in the same BAR, so we want to restrict this ioremap from
1090 * clobbering the GTT which we want ioremap_wc instead. Fortunately,
1091 * the register BAR remains the same size for all the earlier
1092 * generations up to Ironlake.
1094 if (INTEL_INFO(dev
)->gen
< 5)
1095 mmio_size
= 512 * 1024;
1097 mmio_size
= 2 * 1024 * 1024;
1098 dev_priv
->regs
= pci_iomap(dev
->pdev
, mmio_bar
, mmio_size
);
1099 if (dev_priv
->regs
== NULL
) {
1100 DRM_ERROR("failed to map registers\n");
1105 /* Try to make sure MCHBAR is enabled before poking at it */
1106 intel_setup_mchbar(dev
);
1111 static void i915_mmio_cleanup(struct drm_device
*dev
)
1113 struct drm_i915_private
*dev_priv
= to_i915(dev
);
1115 intel_teardown_mchbar(dev
);
1116 pci_iounmap(dev
->pdev
, dev_priv
->regs
);
1120 * i915_driver_init_mmio - setup device MMIO
1121 * @dev_priv: device private
1123 * Setup minimal device state necessary for MMIO accesses later in the
1124 * initialization sequence. The setup here should avoid any other device-wide
1125 * side effects or exposing the driver via kernel internal or user space
1128 static int i915_driver_init_mmio(struct drm_i915_private
*dev_priv
)
1130 struct drm_device
*dev
= dev_priv
->dev
;
1133 if (i915_inject_load_failure())
1136 if (i915_get_bridge_dev(dev
))
1139 ret
= i915_mmio_setup(dev
);
1143 intel_uncore_init(dev
);
1148 pci_dev_put(dev_priv
->bridge_dev
);
1154 * i915_driver_cleanup_mmio - cleanup the setup done in i915_driver_init_mmio()
1155 * @dev_priv: device private
1157 static void i915_driver_cleanup_mmio(struct drm_i915_private
*dev_priv
)
1159 struct drm_device
*dev
= dev_priv
->dev
;
1161 intel_uncore_fini(dev
);
1162 i915_mmio_cleanup(dev
);
1163 pci_dev_put(dev_priv
->bridge_dev
);
1167 * i915_driver_init_hw - setup state requiring device access
1168 * @dev_priv: device private
1170 * Setup state that requires accessing the device, but doesn't require
1171 * exposing the driver via kernel internal or userspace interfaces.
1173 static int i915_driver_init_hw(struct drm_i915_private
*dev_priv
)
1175 struct drm_device
*dev
= dev_priv
->dev
;
1176 struct i915_ggtt
*ggtt
= &dev_priv
->ggtt
;
1177 uint32_t aperture_size
;
1180 if (i915_inject_load_failure())
1183 intel_device_info_runtime_init(dev
);
1185 ret
= i915_ggtt_init_hw(dev
);
1189 /* WARNING: Apparently we must kick fbdev drivers before vgacon,
1190 * otherwise the vga fbdev driver falls over. */
1191 ret
= i915_kick_out_firmware_fb(dev_priv
);
1193 DRM_ERROR("failed to remove conflicting framebuffer drivers\n");
1197 ret
= i915_kick_out_vgacon(dev_priv
);
1199 DRM_ERROR("failed to remove conflicting VGA console\n");
1203 pci_set_master(dev
->pdev
);
1205 /* overlay on gen2 is broken and can't address above 1G */
1207 dma_set_coherent_mask(&dev
->pdev
->dev
, DMA_BIT_MASK(30));
1209 /* 965GM sometimes incorrectly writes to hardware status page (HWS)
1210 * using 32bit addressing, overwriting memory if HWS is located
1213 * The documentation also mentions an issue with undefined
1214 * behaviour if any general state is accessed within a page above 4GB,
1215 * which also needs to be handled carefully.
1217 if (IS_BROADWATER(dev
) || IS_CRESTLINE(dev
))
1218 dma_set_coherent_mask(&dev
->pdev
->dev
, DMA_BIT_MASK(32));
1220 aperture_size
= ggtt
->mappable_end
;
1223 io_mapping_create_wc(ggtt
->mappable_base
,
1225 if (!ggtt
->mappable
) {
1230 ggtt
->mtrr
= arch_phys_wc_add(ggtt
->mappable_base
,
1233 pm_qos_add_request(&dev_priv
->pm_qos
, PM_QOS_CPU_DMA_LATENCY
,
1234 PM_QOS_DEFAULT_VALUE
);
1236 intel_uncore_sanitize(dev
);
1238 intel_opregion_setup(dev
);
1240 i915_gem_load_init_fences(dev_priv
);
1242 /* On the 945G/GM, the chipset reports the MSI capability on the
1243 * integrated graphics even though the support isn't actually there
1244 * according to the published specs. It doesn't appear to function
1245 * correctly in testing on 945G.
1246 * This may be a side effect of MSI having been made available for PEG
1247 * and the registers being closely associated.
1249 * According to chipset errata, on the 965GM, MSI interrupts may
1250 * be lost or delayed, but we use them anyways to avoid
1251 * stuck interrupts on some machines.
1253 if (!IS_I945G(dev
) && !IS_I945GM(dev
)) {
1254 if (pci_enable_msi(dev
->pdev
) < 0)
1255 DRM_DEBUG_DRIVER("can't enable MSI");
1261 i915_ggtt_cleanup_hw(dev
);
1267 * i915_driver_cleanup_hw - cleanup the setup done in i915_driver_init_hw()
1268 * @dev_priv: device private
1270 static void i915_driver_cleanup_hw(struct drm_i915_private
*dev_priv
)
1272 struct drm_device
*dev
= dev_priv
->dev
;
1273 struct i915_ggtt
*ggtt
= &dev_priv
->ggtt
;
1275 if (dev
->pdev
->msi_enabled
)
1276 pci_disable_msi(dev
->pdev
);
1278 pm_qos_remove_request(&dev_priv
->pm_qos
);
1279 arch_phys_wc_del(ggtt
->mtrr
);
1280 io_mapping_free(ggtt
->mappable
);
1281 i915_ggtt_cleanup_hw(dev
);
1285 * i915_driver_register - register the driver with the rest of the system
1286 * @dev_priv: device private
1288 * Perform any steps necessary to make the driver available via kernel
1289 * internal or userspace interfaces.
1291 static void i915_driver_register(struct drm_i915_private
*dev_priv
)
1293 struct drm_device
*dev
= dev_priv
->dev
;
1295 i915_gem_shrinker_init(dev_priv
);
1297 * Notify a valid surface after modesetting,
1298 * when running inside a VM.
1300 if (intel_vgpu_active(dev
))
1301 I915_WRITE(vgtif_reg(display_ready
), VGT_DRV_DISPLAY_READY
);
1303 i915_setup_sysfs(dev
);
1305 if (INTEL_INFO(dev_priv
)->num_pipes
) {
1306 /* Must be done after probing outputs */
1307 intel_opregion_init(dev
);
1308 acpi_video_register();
1311 if (IS_GEN5(dev_priv
))
1312 intel_gpu_ips_init(dev_priv
);
1314 i915_audio_component_init(dev_priv
);
1318 * i915_driver_unregister - cleanup the registration done in i915_driver_regiser()
1319 * @dev_priv: device private
1321 static void i915_driver_unregister(struct drm_i915_private
*dev_priv
)
1323 i915_audio_component_cleanup(dev_priv
);
1324 intel_gpu_ips_teardown();
1325 acpi_video_unregister();
1326 intel_opregion_fini(dev_priv
->dev
);
1327 i915_teardown_sysfs(dev_priv
->dev
);
1328 i915_gem_shrinker_cleanup(dev_priv
);
1332 * i915_driver_load - setup chip and create an initial config
1334 * @flags: startup flags
1336 * The driver load routine has to do several things:
1337 * - drive output discovery via intel_modeset_init()
1338 * - initialize the memory manager
1339 * - allocate initial config memory
1340 * - setup the DRM framebuffer with the allocated memory
1342 int i915_driver_load(struct drm_device
*dev
, unsigned long flags
)
1344 struct drm_i915_private
*dev_priv
;
1347 dev_priv
= kzalloc(sizeof(*dev_priv
), GFP_KERNEL
);
1348 if (dev_priv
== NULL
)
1351 dev
->dev_private
= dev_priv
;
1352 /* Must be set before calling __i915_printk */
1353 dev_priv
->dev
= dev
;
1355 ret
= i915_driver_init_early(dev_priv
, dev
,
1356 (struct intel_device_info
*)flags
);
1361 intel_runtime_pm_get(dev_priv
);
1363 ret
= i915_driver_init_mmio(dev_priv
);
1365 goto out_runtime_pm_put
;
1367 ret
= i915_driver_init_hw(dev_priv
);
1369 goto out_cleanup_mmio
;
1372 * TODO: move the vblank init and parts of modeset init steps into one
1373 * of the i915_driver_init_/i915_driver_register functions according
1374 * to the role/effect of the given init step.
1376 if (INTEL_INFO(dev
)->num_pipes
) {
1377 ret
= drm_vblank_init(dev
, INTEL_INFO(dev
)->num_pipes
);
1379 goto out_cleanup_hw
;
1382 ret
= i915_load_modeset_init(dev
);
1384 goto out_cleanup_vblank
;
1386 i915_driver_register(dev_priv
);
1388 intel_runtime_pm_enable(dev_priv
);
1390 intel_runtime_pm_put(dev_priv
);
1395 drm_vblank_cleanup(dev
);
1397 i915_driver_cleanup_hw(dev_priv
);
1399 i915_driver_cleanup_mmio(dev_priv
);
1401 intel_runtime_pm_put(dev_priv
);
1402 i915_driver_cleanup_early(dev_priv
);
1404 i915_load_error(dev_priv
, "Device initialization failed (%d)\n", ret
);
1411 int i915_driver_unload(struct drm_device
*dev
)
1413 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1416 intel_fbdev_fini(dev
);
1418 ret
= i915_gem_suspend(dev
);
1420 DRM_ERROR("failed to idle hardware: %d\n", ret
);
1424 intel_display_power_get(dev_priv
, POWER_DOMAIN_INIT
);
1426 i915_driver_unregister(dev_priv
);
1428 drm_vblank_cleanup(dev
);
1430 intel_modeset_cleanup(dev
);
1433 * free the memory space allocated for the child device
1434 * config parsed from VBT
1436 if (dev_priv
->vbt
.child_dev
&& dev_priv
->vbt
.child_dev_num
) {
1437 kfree(dev_priv
->vbt
.child_dev
);
1438 dev_priv
->vbt
.child_dev
= NULL
;
1439 dev_priv
->vbt
.child_dev_num
= 0;
1441 kfree(dev_priv
->vbt
.sdvo_lvds_vbt_mode
);
1442 dev_priv
->vbt
.sdvo_lvds_vbt_mode
= NULL
;
1443 kfree(dev_priv
->vbt
.lfp_lvds_vbt_mode
);
1444 dev_priv
->vbt
.lfp_lvds_vbt_mode
= NULL
;
1446 vga_switcheroo_unregister_client(dev
->pdev
);
1447 vga_client_register(dev
->pdev
, NULL
, NULL
, NULL
);
1449 intel_csr_ucode_fini(dev_priv
);
1451 /* Free error state after interrupts are fully disabled. */
1452 cancel_delayed_work_sync(&dev_priv
->gpu_error
.hangcheck_work
);
1453 i915_destroy_error_state(dev
);
1455 /* Flush any outstanding unpin_work. */
1456 flush_workqueue(dev_priv
->wq
);
1458 intel_guc_ucode_fini(dev
);
1459 mutex_lock(&dev
->struct_mutex
);
1460 i915_gem_cleanup_engines(dev
);
1461 i915_gem_context_fini(dev
);
1462 mutex_unlock(&dev
->struct_mutex
);
1463 intel_fbc_cleanup_cfb(dev_priv
);
1465 intel_power_domains_fini(dev_priv
);
1467 i915_driver_cleanup_hw(dev_priv
);
1468 i915_driver_cleanup_mmio(dev_priv
);
1470 intel_display_power_put(dev_priv
, POWER_DOMAIN_INIT
);
1472 i915_driver_cleanup_early(dev_priv
);
1478 int i915_driver_open(struct drm_device
*dev
, struct drm_file
*file
)
1482 ret
= i915_gem_open(dev
, file
);
1490 * i915_driver_lastclose - clean up after all DRM clients have exited
1493 * Take care of cleaning up after all DRM clients have exited. In the
1494 * mode setting case, we want to restore the kernel's initial mode (just
1495 * in case the last client left us in a bad state).
1497 * Additionally, in the non-mode setting case, we'll tear down the GTT
1498 * and DMA structures, since the kernel won't be using them, and clea
1501 void i915_driver_lastclose(struct drm_device
*dev
)
1503 intel_fbdev_restore_mode(dev
);
1504 vga_switcheroo_process_delayed_switch();
1507 void i915_driver_preclose(struct drm_device
*dev
, struct drm_file
*file
)
1509 mutex_lock(&dev
->struct_mutex
);
1510 i915_gem_context_close(dev
, file
);
1511 i915_gem_release(dev
, file
);
1512 mutex_unlock(&dev
->struct_mutex
);
1515 void i915_driver_postclose(struct drm_device
*dev
, struct drm_file
*file
)
1517 struct drm_i915_file_private
*file_priv
= file
->driver_priv
;
1523 i915_gem_reject_pin_ioctl(struct drm_device
*dev
, void *data
,
1524 struct drm_file
*file
)
1529 const struct drm_ioctl_desc i915_ioctls
[] = {
1530 DRM_IOCTL_DEF_DRV(I915_INIT
, drm_noop
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
1531 DRM_IOCTL_DEF_DRV(I915_FLUSH
, drm_noop
, DRM_AUTH
),
1532 DRM_IOCTL_DEF_DRV(I915_FLIP
, drm_noop
, DRM_AUTH
),
1533 DRM_IOCTL_DEF_DRV(I915_BATCHBUFFER
, drm_noop
, DRM_AUTH
),
1534 DRM_IOCTL_DEF_DRV(I915_IRQ_EMIT
, drm_noop
, DRM_AUTH
),
1535 DRM_IOCTL_DEF_DRV(I915_IRQ_WAIT
, drm_noop
, DRM_AUTH
),
1536 DRM_IOCTL_DEF_DRV(I915_GETPARAM
, i915_getparam
, DRM_AUTH
|DRM_RENDER_ALLOW
),
1537 DRM_IOCTL_DEF_DRV(I915_SETPARAM
, drm_noop
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
1538 DRM_IOCTL_DEF_DRV(I915_ALLOC
, drm_noop
, DRM_AUTH
),
1539 DRM_IOCTL_DEF_DRV(I915_FREE
, drm_noop
, DRM_AUTH
),
1540 DRM_IOCTL_DEF_DRV(I915_INIT_HEAP
, drm_noop
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
1541 DRM_IOCTL_DEF_DRV(I915_CMDBUFFER
, drm_noop
, DRM_AUTH
),
1542 DRM_IOCTL_DEF_DRV(I915_DESTROY_HEAP
, drm_noop
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
1543 DRM_IOCTL_DEF_DRV(I915_SET_VBLANK_PIPE
, drm_noop
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
1544 DRM_IOCTL_DEF_DRV(I915_GET_VBLANK_PIPE
, drm_noop
, DRM_AUTH
),
1545 DRM_IOCTL_DEF_DRV(I915_VBLANK_SWAP
, drm_noop
, DRM_AUTH
),
1546 DRM_IOCTL_DEF_DRV(I915_HWS_ADDR
, drm_noop
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
1547 DRM_IOCTL_DEF_DRV(I915_GEM_INIT
, drm_noop
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
1548 DRM_IOCTL_DEF_DRV(I915_GEM_EXECBUFFER
, i915_gem_execbuffer
, DRM_AUTH
),
1549 DRM_IOCTL_DEF_DRV(I915_GEM_EXECBUFFER2
, i915_gem_execbuffer2
, DRM_AUTH
|DRM_RENDER_ALLOW
),
1550 DRM_IOCTL_DEF_DRV(I915_GEM_PIN
, i915_gem_reject_pin_ioctl
, DRM_AUTH
|DRM_ROOT_ONLY
),
1551 DRM_IOCTL_DEF_DRV(I915_GEM_UNPIN
, i915_gem_reject_pin_ioctl
, DRM_AUTH
|DRM_ROOT_ONLY
),
1552 DRM_IOCTL_DEF_DRV(I915_GEM_BUSY
, i915_gem_busy_ioctl
, DRM_AUTH
|DRM_RENDER_ALLOW
),
1553 DRM_IOCTL_DEF_DRV(I915_GEM_SET_CACHING
, i915_gem_set_caching_ioctl
, DRM_RENDER_ALLOW
),
1554 DRM_IOCTL_DEF_DRV(I915_GEM_GET_CACHING
, i915_gem_get_caching_ioctl
, DRM_RENDER_ALLOW
),
1555 DRM_IOCTL_DEF_DRV(I915_GEM_THROTTLE
, i915_gem_throttle_ioctl
, DRM_AUTH
|DRM_RENDER_ALLOW
),
1556 DRM_IOCTL_DEF_DRV(I915_GEM_ENTERVT
, drm_noop
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
1557 DRM_IOCTL_DEF_DRV(I915_GEM_LEAVEVT
, drm_noop
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
1558 DRM_IOCTL_DEF_DRV(I915_GEM_CREATE
, i915_gem_create_ioctl
, DRM_RENDER_ALLOW
),
1559 DRM_IOCTL_DEF_DRV(I915_GEM_PREAD
, i915_gem_pread_ioctl
, DRM_RENDER_ALLOW
),
1560 DRM_IOCTL_DEF_DRV(I915_GEM_PWRITE
, i915_gem_pwrite_ioctl
, DRM_RENDER_ALLOW
),
1561 DRM_IOCTL_DEF_DRV(I915_GEM_MMAP
, i915_gem_mmap_ioctl
, DRM_RENDER_ALLOW
),
1562 DRM_IOCTL_DEF_DRV(I915_GEM_MMAP_GTT
, i915_gem_mmap_gtt_ioctl
, DRM_RENDER_ALLOW
),
1563 DRM_IOCTL_DEF_DRV(I915_GEM_SET_DOMAIN
, i915_gem_set_domain_ioctl
, DRM_RENDER_ALLOW
),
1564 DRM_IOCTL_DEF_DRV(I915_GEM_SW_FINISH
, i915_gem_sw_finish_ioctl
, DRM_RENDER_ALLOW
),
1565 DRM_IOCTL_DEF_DRV(I915_GEM_SET_TILING
, i915_gem_set_tiling
, DRM_RENDER_ALLOW
),
1566 DRM_IOCTL_DEF_DRV(I915_GEM_GET_TILING
, i915_gem_get_tiling
, DRM_RENDER_ALLOW
),
1567 DRM_IOCTL_DEF_DRV(I915_GEM_GET_APERTURE
, i915_gem_get_aperture_ioctl
, DRM_RENDER_ALLOW
),
1568 DRM_IOCTL_DEF_DRV(I915_GET_PIPE_FROM_CRTC_ID
, intel_get_pipe_from_crtc_id
, 0),
1569 DRM_IOCTL_DEF_DRV(I915_GEM_MADVISE
, i915_gem_madvise_ioctl
, DRM_RENDER_ALLOW
),
1570 DRM_IOCTL_DEF_DRV(I915_OVERLAY_PUT_IMAGE
, intel_overlay_put_image
, DRM_MASTER
|DRM_CONTROL_ALLOW
),
1571 DRM_IOCTL_DEF_DRV(I915_OVERLAY_ATTRS
, intel_overlay_attrs
, DRM_MASTER
|DRM_CONTROL_ALLOW
),
1572 DRM_IOCTL_DEF_DRV(I915_SET_SPRITE_COLORKEY
, intel_sprite_set_colorkey
, DRM_MASTER
|DRM_CONTROL_ALLOW
),
1573 DRM_IOCTL_DEF_DRV(I915_GET_SPRITE_COLORKEY
, drm_noop
, DRM_MASTER
|DRM_CONTROL_ALLOW
),
1574 DRM_IOCTL_DEF_DRV(I915_GEM_WAIT
, i915_gem_wait_ioctl
, DRM_AUTH
|DRM_RENDER_ALLOW
),
1575 DRM_IOCTL_DEF_DRV(I915_GEM_CONTEXT_CREATE
, i915_gem_context_create_ioctl
, DRM_RENDER_ALLOW
),
1576 DRM_IOCTL_DEF_DRV(I915_GEM_CONTEXT_DESTROY
, i915_gem_context_destroy_ioctl
, DRM_RENDER_ALLOW
),
1577 DRM_IOCTL_DEF_DRV(I915_REG_READ
, i915_reg_read_ioctl
, DRM_RENDER_ALLOW
),
1578 DRM_IOCTL_DEF_DRV(I915_GET_RESET_STATS
, i915_get_reset_stats_ioctl
, DRM_RENDER_ALLOW
),
1579 DRM_IOCTL_DEF_DRV(I915_GEM_USERPTR
, i915_gem_userptr_ioctl
, DRM_RENDER_ALLOW
),
1580 DRM_IOCTL_DEF_DRV(I915_GEM_CONTEXT_GETPARAM
, i915_gem_context_getparam_ioctl
, DRM_RENDER_ALLOW
),
1581 DRM_IOCTL_DEF_DRV(I915_GEM_CONTEXT_SETPARAM
, i915_gem_context_setparam_ioctl
, DRM_RENDER_ALLOW
),
1584 int i915_max_ioctl
= ARRAY_SIZE(i915_ioctls
);