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.
31 #include "drm_crtc_helper.h"
32 #include "drm_fb_helper.h"
33 #include "intel_drv.h"
36 #include "i915_trace.h"
37 #include <linux/pci.h>
38 #include <linux/vgaarb.h>
39 #include <linux/acpi.h>
40 #include <linux/pnp.h>
41 #include <linux/vga_switcheroo.h>
42 #include <linux/slab.h>
44 extern int intel_max_stolen
; /* from AGP driver */
47 * Sets up the hardware status page for devices that need a physical address
50 static int i915_init_phys_hws(struct drm_device
*dev
)
52 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
53 /* Program Hardware Status Page */
54 dev_priv
->status_page_dmah
=
55 drm_pci_alloc(dev
, PAGE_SIZE
, PAGE_SIZE
);
57 if (!dev_priv
->status_page_dmah
) {
58 DRM_ERROR("Can not allocate hardware status page\n");
61 dev_priv
->render_ring
.status_page
.page_addr
62 = dev_priv
->status_page_dmah
->vaddr
;
63 dev_priv
->dma_status_page
= dev_priv
->status_page_dmah
->busaddr
;
65 memset(dev_priv
->render_ring
.status_page
.page_addr
, 0, PAGE_SIZE
);
68 dev_priv
->dma_status_page
|= (dev_priv
->dma_status_page
>> 28) &
71 I915_WRITE(HWS_PGA
, dev_priv
->dma_status_page
);
72 DRM_DEBUG_DRIVER("Enabled hardware status page\n");
77 * Frees the hardware status page, whether it's a physical address or a virtual
78 * address set up by the X Server.
80 static void i915_free_hws(struct drm_device
*dev
)
82 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
83 if (dev_priv
->status_page_dmah
) {
84 drm_pci_free(dev
, dev_priv
->status_page_dmah
);
85 dev_priv
->status_page_dmah
= NULL
;
88 if (dev_priv
->render_ring
.status_page
.gfx_addr
) {
89 dev_priv
->render_ring
.status_page
.gfx_addr
= 0;
90 drm_core_ioremapfree(&dev_priv
->hws_map
, dev
);
93 /* Need to rewrite hardware status page */
94 I915_WRITE(HWS_PGA
, 0x1ffff000);
97 void i915_kernel_lost_context(struct drm_device
* dev
)
99 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
100 struct drm_i915_master_private
*master_priv
;
101 struct intel_ring_buffer
*ring
= &dev_priv
->render_ring
;
104 * We should never lose context on the ring with modesetting
105 * as we don't expose it to userspace
107 if (drm_core_check_feature(dev
, DRIVER_MODESET
))
110 ring
->head
= I915_READ(PRB0_HEAD
) & HEAD_ADDR
;
111 ring
->tail
= I915_READ(PRB0_TAIL
) & TAIL_ADDR
;
112 ring
->space
= ring
->head
- (ring
->tail
+ 8);
114 ring
->space
+= ring
->size
;
116 if (!dev
->primary
->master
)
119 master_priv
= dev
->primary
->master
->driver_priv
;
120 if (ring
->head
== ring
->tail
&& master_priv
->sarea_priv
)
121 master_priv
->sarea_priv
->perf_boxes
|= I915_BOX_RING_EMPTY
;
124 static int i915_dma_cleanup(struct drm_device
* dev
)
126 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
127 /* Make sure interrupts are disabled here because the uninstall ioctl
128 * may not have been called from userspace and after dev_private
129 * is freed, it's too late.
131 if (dev
->irq_enabled
)
132 drm_irq_uninstall(dev
);
134 mutex_lock(&dev
->struct_mutex
);
135 intel_cleanup_ring_buffer(dev
, &dev_priv
->render_ring
);
137 intel_cleanup_ring_buffer(dev
, &dev_priv
->bsd_ring
);
138 mutex_unlock(&dev
->struct_mutex
);
140 /* Clear the HWS virtual address at teardown */
141 if (I915_NEED_GFX_HWS(dev
))
147 static int i915_initialize(struct drm_device
* dev
, drm_i915_init_t
* init
)
149 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
150 struct drm_i915_master_private
*master_priv
= dev
->primary
->master
->driver_priv
;
152 master_priv
->sarea
= drm_getsarea(dev
);
153 if (master_priv
->sarea
) {
154 master_priv
->sarea_priv
= (drm_i915_sarea_t
*)
155 ((u8
*)master_priv
->sarea
->handle
+ init
->sarea_priv_offset
);
157 DRM_DEBUG_DRIVER("sarea not found assuming DRI2 userspace\n");
160 if (init
->ring_size
!= 0) {
161 if (dev_priv
->render_ring
.gem_object
!= NULL
) {
162 i915_dma_cleanup(dev
);
163 DRM_ERROR("Client tried to initialize ringbuffer in "
168 dev_priv
->render_ring
.size
= init
->ring_size
;
170 dev_priv
->render_ring
.map
.offset
= init
->ring_start
;
171 dev_priv
->render_ring
.map
.size
= init
->ring_size
;
172 dev_priv
->render_ring
.map
.type
= 0;
173 dev_priv
->render_ring
.map
.flags
= 0;
174 dev_priv
->render_ring
.map
.mtrr
= 0;
176 drm_core_ioremap_wc(&dev_priv
->render_ring
.map
, dev
);
178 if (dev_priv
->render_ring
.map
.handle
== NULL
) {
179 i915_dma_cleanup(dev
);
180 DRM_ERROR("can not ioremap virtual address for"
186 dev_priv
->render_ring
.virtual_start
= dev_priv
->render_ring
.map
.handle
;
188 dev_priv
->cpp
= init
->cpp
;
189 dev_priv
->back_offset
= init
->back_offset
;
190 dev_priv
->front_offset
= init
->front_offset
;
191 dev_priv
->current_page
= 0;
192 if (master_priv
->sarea_priv
)
193 master_priv
->sarea_priv
->pf_current_page
= 0;
195 /* Allow hardware batchbuffers unless told otherwise.
197 dev_priv
->allow_batchbuffer
= 1;
202 static int i915_dma_resume(struct drm_device
* dev
)
204 drm_i915_private_t
*dev_priv
= (drm_i915_private_t
*) dev
->dev_private
;
206 struct intel_ring_buffer
*ring
;
207 DRM_DEBUG_DRIVER("%s\n", __func__
);
209 ring
= &dev_priv
->render_ring
;
211 if (ring
->map
.handle
== NULL
) {
212 DRM_ERROR("can not ioremap virtual address for"
217 /* Program Hardware Status Page */
218 if (!ring
->status_page
.page_addr
) {
219 DRM_ERROR("Can not find hardware status page\n");
222 DRM_DEBUG_DRIVER("hw status page @ %p\n",
223 ring
->status_page
.page_addr
);
224 if (ring
->status_page
.gfx_addr
!= 0)
225 ring
->setup_status_page(dev
, ring
);
227 I915_WRITE(HWS_PGA
, dev_priv
->dma_status_page
);
229 DRM_DEBUG_DRIVER("Enabled hardware status page\n");
234 static int i915_dma_init(struct drm_device
*dev
, void *data
,
235 struct drm_file
*file_priv
)
237 drm_i915_init_t
*init
= data
;
240 switch (init
->func
) {
242 retcode
= i915_initialize(dev
, init
);
244 case I915_CLEANUP_DMA
:
245 retcode
= i915_dma_cleanup(dev
);
247 case I915_RESUME_DMA
:
248 retcode
= i915_dma_resume(dev
);
258 /* Implement basically the same security restrictions as hardware does
259 * for MI_BATCH_NON_SECURE. These can be made stricter at any time.
261 * Most of the calculations below involve calculating the size of a
262 * particular instruction. It's important to get the size right as
263 * that tells us where the next instruction to check is. Any illegal
264 * instruction detected will be given a size of zero, which is a
265 * signal to abort the rest of the buffer.
267 static int do_validate_cmd(int cmd
)
269 switch (((cmd
>> 29) & 0x7)) {
271 switch ((cmd
>> 23) & 0x3f) {
273 return 1; /* MI_NOOP */
275 return 1; /* MI_FLUSH */
277 return 0; /* disallow everything else */
281 return 0; /* reserved */
283 return (cmd
& 0xff) + 2; /* 2d commands */
285 if (((cmd
>> 24) & 0x1f) <= 0x18)
288 switch ((cmd
>> 24) & 0x1f) {
292 switch ((cmd
>> 16) & 0xff) {
294 return (cmd
& 0x1f) + 2;
296 return (cmd
& 0xf) + 2;
298 return (cmd
& 0xffff) + 2;
302 return (cmd
& 0xffff) + 1;
306 if ((cmd
& (1 << 23)) == 0) /* inline vertices */
307 return (cmd
& 0x1ffff) + 2;
308 else if (cmd
& (1 << 17)) /* indirect random */
309 if ((cmd
& 0xffff) == 0)
310 return 0; /* unknown length, too hard */
312 return (((cmd
& 0xffff) + 1) / 2) + 1;
314 return 2; /* indirect sequential */
325 static int validate_cmd(int cmd
)
327 int ret
= do_validate_cmd(cmd
);
329 /* printk("validate_cmd( %x ): %d\n", cmd, ret); */
334 static int i915_emit_cmds(struct drm_device
* dev
, int *buffer
, int dwords
)
336 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
339 if ((dwords
+1) * sizeof(int) >= dev_priv
->render_ring
.size
- 8)
342 BEGIN_LP_RING((dwords
+1)&~1);
344 for (i
= 0; i
< dwords
;) {
349 if ((sz
= validate_cmd(cmd
)) == 0 || i
+ sz
> dwords
)
368 i915_emit_box(struct drm_device
*dev
,
369 struct drm_clip_rect
*boxes
,
370 int i
, int DR1
, int DR4
)
372 struct drm_clip_rect box
= boxes
[i
];
374 if (box
.y2
<= box
.y1
|| box
.x2
<= box
.x1
|| box
.y2
<= 0 || box
.x2
<= 0) {
375 DRM_ERROR("Bad box %d,%d..%d,%d\n",
376 box
.x1
, box
.y1
, box
.x2
, box
.y2
);
382 OUT_RING(GFX_OP_DRAWRECT_INFO_I965
);
383 OUT_RING((box
.x1
& 0xffff) | (box
.y1
<< 16));
384 OUT_RING(((box
.x2
- 1) & 0xffff) | ((box
.y2
- 1) << 16));
389 OUT_RING(GFX_OP_DRAWRECT_INFO
);
391 OUT_RING((box
.x1
& 0xffff) | (box
.y1
<< 16));
392 OUT_RING(((box
.x2
- 1) & 0xffff) | ((box
.y2
- 1) << 16));
401 /* XXX: Emitting the counter should really be moved to part of the IRQ
402 * emit. For now, do it in both places:
405 static void i915_emit_breadcrumb(struct drm_device
*dev
)
407 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
408 struct drm_i915_master_private
*master_priv
= dev
->primary
->master
->driver_priv
;
411 if (dev_priv
->counter
> 0x7FFFFFFFUL
)
412 dev_priv
->counter
= 0;
413 if (master_priv
->sarea_priv
)
414 master_priv
->sarea_priv
->last_enqueue
= dev_priv
->counter
;
417 OUT_RING(MI_STORE_DWORD_INDEX
);
418 OUT_RING(I915_BREADCRUMB_INDEX
<< MI_STORE_DWORD_INDEX_SHIFT
);
419 OUT_RING(dev_priv
->counter
);
424 static int i915_dispatch_cmdbuffer(struct drm_device
* dev
,
425 drm_i915_cmdbuffer_t
*cmd
,
426 struct drm_clip_rect
*cliprects
,
429 int nbox
= cmd
->num_cliprects
;
430 int i
= 0, count
, ret
;
433 DRM_ERROR("alignment");
437 i915_kernel_lost_context(dev
);
439 count
= nbox
? nbox
: 1;
441 for (i
= 0; i
< count
; i
++) {
443 ret
= i915_emit_box(dev
, cliprects
, i
,
449 ret
= i915_emit_cmds(dev
, cmdbuf
, cmd
->sz
/ 4);
454 i915_emit_breadcrumb(dev
);
458 static int i915_dispatch_batchbuffer(struct drm_device
* dev
,
459 drm_i915_batchbuffer_t
* batch
,
460 struct drm_clip_rect
*cliprects
)
462 int nbox
= batch
->num_cliprects
;
465 if ((batch
->start
| batch
->used
) & 0x7) {
466 DRM_ERROR("alignment");
470 i915_kernel_lost_context(dev
);
472 count
= nbox
? nbox
: 1;
474 for (i
= 0; i
< count
; i
++) {
476 int ret
= i915_emit_box(dev
, cliprects
, i
,
477 batch
->DR1
, batch
->DR4
);
482 if (!IS_I830(dev
) && !IS_845G(dev
)) {
485 OUT_RING(MI_BATCH_BUFFER_START
| (2 << 6) | MI_BATCH_NON_SECURE_I965
);
486 OUT_RING(batch
->start
);
488 OUT_RING(MI_BATCH_BUFFER_START
| (2 << 6));
489 OUT_RING(batch
->start
| MI_BATCH_NON_SECURE
);
494 OUT_RING(MI_BATCH_BUFFER
);
495 OUT_RING(batch
->start
| MI_BATCH_NON_SECURE
);
496 OUT_RING(batch
->start
+ batch
->used
- 4);
503 if (IS_G4X(dev
) || IS_IRONLAKE(dev
)) {
505 OUT_RING(MI_FLUSH
| MI_NO_WRITE_FLUSH
| MI_INVALIDATE_ISP
);
509 i915_emit_breadcrumb(dev
);
514 static int i915_dispatch_flip(struct drm_device
* dev
)
516 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
517 struct drm_i915_master_private
*master_priv
=
518 dev
->primary
->master
->driver_priv
;
520 if (!master_priv
->sarea_priv
)
523 DRM_DEBUG_DRIVER("%s: page=%d pfCurrentPage=%d\n",
525 dev_priv
->current_page
,
526 master_priv
->sarea_priv
->pf_current_page
);
528 i915_kernel_lost_context(dev
);
531 OUT_RING(MI_FLUSH
| MI_READ_FLUSH
);
536 OUT_RING(CMD_OP_DISPLAYBUFFER_INFO
| ASYNC_FLIP
);
538 if (dev_priv
->current_page
== 0) {
539 OUT_RING(dev_priv
->back_offset
);
540 dev_priv
->current_page
= 1;
542 OUT_RING(dev_priv
->front_offset
);
543 dev_priv
->current_page
= 0;
549 OUT_RING(MI_WAIT_FOR_EVENT
| MI_WAIT_FOR_PLANE_A_FLIP
);
553 master_priv
->sarea_priv
->last_enqueue
= dev_priv
->counter
++;
556 OUT_RING(MI_STORE_DWORD_INDEX
);
557 OUT_RING(I915_BREADCRUMB_INDEX
<< MI_STORE_DWORD_INDEX_SHIFT
);
558 OUT_RING(dev_priv
->counter
);
562 master_priv
->sarea_priv
->pf_current_page
= dev_priv
->current_page
;
566 static int i915_quiescent(struct drm_device
* dev
)
568 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
570 i915_kernel_lost_context(dev
);
571 return intel_wait_ring_buffer(dev
, &dev_priv
->render_ring
,
572 dev_priv
->render_ring
.size
- 8);
575 static int i915_flush_ioctl(struct drm_device
*dev
, void *data
,
576 struct drm_file
*file_priv
)
580 RING_LOCK_TEST_WITH_RETURN(dev
, file_priv
);
582 mutex_lock(&dev
->struct_mutex
);
583 ret
= i915_quiescent(dev
);
584 mutex_unlock(&dev
->struct_mutex
);
589 static int i915_batchbuffer(struct drm_device
*dev
, void *data
,
590 struct drm_file
*file_priv
)
592 drm_i915_private_t
*dev_priv
= (drm_i915_private_t
*) dev
->dev_private
;
593 struct drm_i915_master_private
*master_priv
= dev
->primary
->master
->driver_priv
;
594 drm_i915_sarea_t
*sarea_priv
= (drm_i915_sarea_t
*)
595 master_priv
->sarea_priv
;
596 drm_i915_batchbuffer_t
*batch
= data
;
598 struct drm_clip_rect
*cliprects
= NULL
;
600 if (!dev_priv
->allow_batchbuffer
) {
601 DRM_ERROR("Batchbuffer ioctl disabled\n");
605 DRM_DEBUG_DRIVER("i915 batchbuffer, start %x used %d cliprects %d\n",
606 batch
->start
, batch
->used
, batch
->num_cliprects
);
608 RING_LOCK_TEST_WITH_RETURN(dev
, file_priv
);
610 if (batch
->num_cliprects
< 0)
613 if (batch
->num_cliprects
) {
614 cliprects
= kcalloc(batch
->num_cliprects
,
615 sizeof(struct drm_clip_rect
),
617 if (cliprects
== NULL
)
620 ret
= copy_from_user(cliprects
, batch
->cliprects
,
621 batch
->num_cliprects
*
622 sizeof(struct drm_clip_rect
));
627 mutex_lock(&dev
->struct_mutex
);
628 ret
= i915_dispatch_batchbuffer(dev
, batch
, cliprects
);
629 mutex_unlock(&dev
->struct_mutex
);
632 sarea_priv
->last_dispatch
= READ_BREADCRUMB(dev_priv
);
640 static int i915_cmdbuffer(struct drm_device
*dev
, void *data
,
641 struct drm_file
*file_priv
)
643 drm_i915_private_t
*dev_priv
= (drm_i915_private_t
*) dev
->dev_private
;
644 struct drm_i915_master_private
*master_priv
= dev
->primary
->master
->driver_priv
;
645 drm_i915_sarea_t
*sarea_priv
= (drm_i915_sarea_t
*)
646 master_priv
->sarea_priv
;
647 drm_i915_cmdbuffer_t
*cmdbuf
= data
;
648 struct drm_clip_rect
*cliprects
= NULL
;
652 DRM_DEBUG_DRIVER("i915 cmdbuffer, buf %p sz %d cliprects %d\n",
653 cmdbuf
->buf
, cmdbuf
->sz
, cmdbuf
->num_cliprects
);
655 RING_LOCK_TEST_WITH_RETURN(dev
, file_priv
);
657 if (cmdbuf
->num_cliprects
< 0)
660 batch_data
= kmalloc(cmdbuf
->sz
, GFP_KERNEL
);
661 if (batch_data
== NULL
)
664 ret
= copy_from_user(batch_data
, cmdbuf
->buf
, cmdbuf
->sz
);
666 goto fail_batch_free
;
668 if (cmdbuf
->num_cliprects
) {
669 cliprects
= kcalloc(cmdbuf
->num_cliprects
,
670 sizeof(struct drm_clip_rect
), GFP_KERNEL
);
671 if (cliprects
== NULL
) {
673 goto fail_batch_free
;
676 ret
= copy_from_user(cliprects
, cmdbuf
->cliprects
,
677 cmdbuf
->num_cliprects
*
678 sizeof(struct drm_clip_rect
));
683 mutex_lock(&dev
->struct_mutex
);
684 ret
= i915_dispatch_cmdbuffer(dev
, cmdbuf
, cliprects
, batch_data
);
685 mutex_unlock(&dev
->struct_mutex
);
687 DRM_ERROR("i915_dispatch_cmdbuffer failed\n");
692 sarea_priv
->last_dispatch
= READ_BREADCRUMB(dev_priv
);
702 static int i915_flip_bufs(struct drm_device
*dev
, void *data
,
703 struct drm_file
*file_priv
)
707 DRM_DEBUG_DRIVER("%s\n", __func__
);
709 RING_LOCK_TEST_WITH_RETURN(dev
, file_priv
);
711 mutex_lock(&dev
->struct_mutex
);
712 ret
= i915_dispatch_flip(dev
);
713 mutex_unlock(&dev
->struct_mutex
);
718 static int i915_getparam(struct drm_device
*dev
, void *data
,
719 struct drm_file
*file_priv
)
721 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
722 drm_i915_getparam_t
*param
= data
;
726 DRM_ERROR("called with no initialization\n");
730 switch (param
->param
) {
731 case I915_PARAM_IRQ_ACTIVE
:
732 value
= dev
->pdev
->irq
? 1 : 0;
734 case I915_PARAM_ALLOW_BATCHBUFFER
:
735 value
= dev_priv
->allow_batchbuffer
? 1 : 0;
737 case I915_PARAM_LAST_DISPATCH
:
738 value
= READ_BREADCRUMB(dev_priv
);
740 case I915_PARAM_CHIPSET_ID
:
741 value
= dev
->pci_device
;
743 case I915_PARAM_HAS_GEM
:
744 value
= dev_priv
->has_gem
;
746 case I915_PARAM_NUM_FENCES_AVAIL
:
747 value
= dev_priv
->num_fence_regs
- dev_priv
->fence_reg_start
;
749 case I915_PARAM_HAS_OVERLAY
:
750 value
= dev_priv
->overlay
? 1 : 0;
752 case I915_PARAM_HAS_PAGEFLIPPING
:
755 case I915_PARAM_HAS_EXECBUF2
:
757 value
= dev_priv
->has_gem
;
759 case I915_PARAM_HAS_BSD
:
760 value
= HAS_BSD(dev
);
763 DRM_DEBUG_DRIVER("Unknown parameter %d\n",
768 if (DRM_COPY_TO_USER(param
->value
, &value
, sizeof(int))) {
769 DRM_ERROR("DRM_COPY_TO_USER failed\n");
776 static int i915_setparam(struct drm_device
*dev
, void *data
,
777 struct drm_file
*file_priv
)
779 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
780 drm_i915_setparam_t
*param
= data
;
783 DRM_ERROR("called with no initialization\n");
787 switch (param
->param
) {
788 case I915_SETPARAM_USE_MI_BATCHBUFFER_START
:
790 case I915_SETPARAM_TEX_LRU_LOG_GRANULARITY
:
791 dev_priv
->tex_lru_log_granularity
= param
->value
;
793 case I915_SETPARAM_ALLOW_BATCHBUFFER
:
794 dev_priv
->allow_batchbuffer
= param
->value
;
796 case I915_SETPARAM_NUM_USED_FENCES
:
797 if (param
->value
> dev_priv
->num_fence_regs
||
800 /* Userspace can use first N regs */
801 dev_priv
->fence_reg_start
= param
->value
;
804 DRM_DEBUG_DRIVER("unknown parameter %d\n",
812 static int i915_set_status_page(struct drm_device
*dev
, void *data
,
813 struct drm_file
*file_priv
)
815 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
816 drm_i915_hws_addr_t
*hws
= data
;
817 struct intel_ring_buffer
*ring
= &dev_priv
->render_ring
;
819 if (!I915_NEED_GFX_HWS(dev
))
823 DRM_ERROR("called with no initialization\n");
827 if (drm_core_check_feature(dev
, DRIVER_MODESET
)) {
828 WARN(1, "tried to set status page when mode setting active\n");
832 DRM_DEBUG_DRIVER("set status page addr 0x%08x\n", (u32
)hws
->addr
);
834 ring
->status_page
.gfx_addr
= hws
->addr
& (0x1ffff<<12);
836 dev_priv
->hws_map
.offset
= dev
->agp
->base
+ hws
->addr
;
837 dev_priv
->hws_map
.size
= 4*1024;
838 dev_priv
->hws_map
.type
= 0;
839 dev_priv
->hws_map
.flags
= 0;
840 dev_priv
->hws_map
.mtrr
= 0;
842 drm_core_ioremap_wc(&dev_priv
->hws_map
, dev
);
843 if (dev_priv
->hws_map
.handle
== NULL
) {
844 i915_dma_cleanup(dev
);
845 ring
->status_page
.gfx_addr
= 0;
846 DRM_ERROR("can not ioremap virtual address for"
847 " G33 hw status page\n");
850 ring
->status_page
.page_addr
= dev_priv
->hws_map
.handle
;
851 memset(ring
->status_page
.page_addr
, 0, PAGE_SIZE
);
852 I915_WRITE(HWS_PGA
, ring
->status_page
.gfx_addr
);
854 DRM_DEBUG_DRIVER("load hws HWS_PGA with gfx mem 0x%x\n",
855 ring
->status_page
.gfx_addr
);
856 DRM_DEBUG_DRIVER("load hws at %p\n",
857 ring
->status_page
.page_addr
);
861 static int i915_get_bridge_dev(struct drm_device
*dev
)
863 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
865 dev_priv
->bridge_dev
= pci_get_bus_and_slot(0, PCI_DEVFN(0,0));
866 if (!dev_priv
->bridge_dev
) {
867 DRM_ERROR("bridge device not found\n");
873 #define MCHBAR_I915 0x44
874 #define MCHBAR_I965 0x48
875 #define MCHBAR_SIZE (4*4096)
877 #define DEVEN_REG 0x54
878 #define DEVEN_MCHBAR_EN (1 << 28)
880 /* Allocate space for the MCH regs if needed, return nonzero on error */
882 intel_alloc_mchbar_resource(struct drm_device
*dev
)
884 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
885 int reg
= IS_I965G(dev
) ? MCHBAR_I965
: MCHBAR_I915
;
886 u32 temp_lo
, temp_hi
= 0;
891 pci_read_config_dword(dev_priv
->bridge_dev
, reg
+ 4, &temp_hi
);
892 pci_read_config_dword(dev_priv
->bridge_dev
, reg
, &temp_lo
);
893 mchbar_addr
= ((u64
)temp_hi
<< 32) | temp_lo
;
895 /* If ACPI doesn't have it, assume we need to allocate it ourselves */
898 pnp_range_reserved(mchbar_addr
, mchbar_addr
+ MCHBAR_SIZE
)) {
904 /* Get some space for it */
905 ret
= pci_bus_alloc_resource(dev_priv
->bridge_dev
->bus
, &dev_priv
->mch_res
,
906 MCHBAR_SIZE
, MCHBAR_SIZE
,
908 0, pcibios_align_resource
,
909 dev_priv
->bridge_dev
);
911 DRM_DEBUG_DRIVER("failed bus alloc: %d\n", ret
);
912 dev_priv
->mch_res
.start
= 0;
917 pci_write_config_dword(dev_priv
->bridge_dev
, reg
+ 4,
918 upper_32_bits(dev_priv
->mch_res
.start
));
920 pci_write_config_dword(dev_priv
->bridge_dev
, reg
,
921 lower_32_bits(dev_priv
->mch_res
.start
));
926 /* Setup MCHBAR if possible, return true if we should disable it again */
928 intel_setup_mchbar(struct drm_device
*dev
)
930 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
931 int mchbar_reg
= IS_I965G(dev
) ? MCHBAR_I965
: MCHBAR_I915
;
935 dev_priv
->mchbar_need_disable
= false;
937 if (IS_I915G(dev
) || IS_I915GM(dev
)) {
938 pci_read_config_dword(dev_priv
->bridge_dev
, DEVEN_REG
, &temp
);
939 enabled
= !!(temp
& DEVEN_MCHBAR_EN
);
941 pci_read_config_dword(dev_priv
->bridge_dev
, mchbar_reg
, &temp
);
945 /* If it's already enabled, don't have to do anything */
949 if (intel_alloc_mchbar_resource(dev
))
952 dev_priv
->mchbar_need_disable
= true;
954 /* Space is allocated or reserved, so enable it. */
955 if (IS_I915G(dev
) || IS_I915GM(dev
)) {
956 pci_write_config_dword(dev_priv
->bridge_dev
, DEVEN_REG
,
957 temp
| DEVEN_MCHBAR_EN
);
959 pci_read_config_dword(dev_priv
->bridge_dev
, mchbar_reg
, &temp
);
960 pci_write_config_dword(dev_priv
->bridge_dev
, mchbar_reg
, temp
| 1);
965 intel_teardown_mchbar(struct drm_device
*dev
)
967 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
968 int mchbar_reg
= IS_I965G(dev
) ? MCHBAR_I965
: MCHBAR_I915
;
971 if (dev_priv
->mchbar_need_disable
) {
972 if (IS_I915G(dev
) || IS_I915GM(dev
)) {
973 pci_read_config_dword(dev_priv
->bridge_dev
, DEVEN_REG
, &temp
);
974 temp
&= ~DEVEN_MCHBAR_EN
;
975 pci_write_config_dword(dev_priv
->bridge_dev
, DEVEN_REG
, temp
);
977 pci_read_config_dword(dev_priv
->bridge_dev
, mchbar_reg
, &temp
);
979 pci_write_config_dword(dev_priv
->bridge_dev
, mchbar_reg
, temp
);
983 if (dev_priv
->mch_res
.start
)
984 release_resource(&dev_priv
->mch_res
);
988 * i915_probe_agp - get AGP bootup configuration
990 * @aperture_size: returns AGP aperture configured size
991 * @preallocated_size: returns size of BIOS preallocated AGP space
993 * Since Intel integrated graphics are UMA, the BIOS has to set aside
994 * some RAM for the framebuffer at early boot. This code figures out
995 * how much was set aside so we can use it for our own purposes.
997 static int i915_probe_agp(struct drm_device
*dev
, uint32_t *aperture_size
,
998 uint32_t *preallocated_size
,
1001 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1003 unsigned long overhead
;
1004 unsigned long stolen
;
1006 /* Get the fb aperture size and "stolen" memory amount. */
1007 pci_read_config_word(dev_priv
->bridge_dev
, INTEL_GMCH_CTRL
, &tmp
);
1009 *aperture_size
= 1024 * 1024;
1010 *preallocated_size
= 1024 * 1024;
1012 switch (dev
->pdev
->device
) {
1013 case PCI_DEVICE_ID_INTEL_82830_CGC
:
1014 case PCI_DEVICE_ID_INTEL_82845G_IG
:
1015 case PCI_DEVICE_ID_INTEL_82855GM_IG
:
1016 case PCI_DEVICE_ID_INTEL_82865_IG
:
1017 if ((tmp
& INTEL_GMCH_MEM_MASK
) == INTEL_GMCH_MEM_64M
)
1018 *aperture_size
*= 64;
1020 *aperture_size
*= 128;
1023 /* 9xx supports large sizes, just look at the length */
1024 *aperture_size
= pci_resource_len(dev
->pdev
, 2);
1029 * Some of the preallocated space is taken by the GTT
1030 * and popup. GTT is 1K per MB of aperture size, and popup is 4K.
1032 if (IS_G4X(dev
) || IS_PINEVIEW(dev
) || IS_IRONLAKE(dev
) || IS_GEN6(dev
))
1035 overhead
= (*aperture_size
/ 1024) + 4096;
1038 /* SNB has memory control reg at 0x50.w */
1039 pci_read_config_word(dev
->pdev
, SNB_GMCH_CTRL
, &tmp
);
1041 switch (tmp
& SNB_GMCH_GMS_STOLEN_MASK
) {
1042 case INTEL_855_GMCH_GMS_DISABLED
:
1043 DRM_ERROR("video memory is disabled\n");
1045 case SNB_GMCH_GMS_STOLEN_32M
:
1046 stolen
= 32 * 1024 * 1024;
1048 case SNB_GMCH_GMS_STOLEN_64M
:
1049 stolen
= 64 * 1024 * 1024;
1051 case SNB_GMCH_GMS_STOLEN_96M
:
1052 stolen
= 96 * 1024 * 1024;
1054 case SNB_GMCH_GMS_STOLEN_128M
:
1055 stolen
= 128 * 1024 * 1024;
1057 case SNB_GMCH_GMS_STOLEN_160M
:
1058 stolen
= 160 * 1024 * 1024;
1060 case SNB_GMCH_GMS_STOLEN_192M
:
1061 stolen
= 192 * 1024 * 1024;
1063 case SNB_GMCH_GMS_STOLEN_224M
:
1064 stolen
= 224 * 1024 * 1024;
1066 case SNB_GMCH_GMS_STOLEN_256M
:
1067 stolen
= 256 * 1024 * 1024;
1069 case SNB_GMCH_GMS_STOLEN_288M
:
1070 stolen
= 288 * 1024 * 1024;
1072 case SNB_GMCH_GMS_STOLEN_320M
:
1073 stolen
= 320 * 1024 * 1024;
1075 case SNB_GMCH_GMS_STOLEN_352M
:
1076 stolen
= 352 * 1024 * 1024;
1078 case SNB_GMCH_GMS_STOLEN_384M
:
1079 stolen
= 384 * 1024 * 1024;
1081 case SNB_GMCH_GMS_STOLEN_416M
:
1082 stolen
= 416 * 1024 * 1024;
1084 case SNB_GMCH_GMS_STOLEN_448M
:
1085 stolen
= 448 * 1024 * 1024;
1087 case SNB_GMCH_GMS_STOLEN_480M
:
1088 stolen
= 480 * 1024 * 1024;
1090 case SNB_GMCH_GMS_STOLEN_512M
:
1091 stolen
= 512 * 1024 * 1024;
1094 DRM_ERROR("unexpected GMCH_GMS value: 0x%02x\n",
1095 tmp
& SNB_GMCH_GMS_STOLEN_MASK
);
1099 switch (tmp
& INTEL_GMCH_GMS_MASK
) {
1100 case INTEL_855_GMCH_GMS_DISABLED
:
1101 DRM_ERROR("video memory is disabled\n");
1103 case INTEL_855_GMCH_GMS_STOLEN_1M
:
1104 stolen
= 1 * 1024 * 1024;
1106 case INTEL_855_GMCH_GMS_STOLEN_4M
:
1107 stolen
= 4 * 1024 * 1024;
1109 case INTEL_855_GMCH_GMS_STOLEN_8M
:
1110 stolen
= 8 * 1024 * 1024;
1112 case INTEL_855_GMCH_GMS_STOLEN_16M
:
1113 stolen
= 16 * 1024 * 1024;
1115 case INTEL_855_GMCH_GMS_STOLEN_32M
:
1116 stolen
= 32 * 1024 * 1024;
1118 case INTEL_915G_GMCH_GMS_STOLEN_48M
:
1119 stolen
= 48 * 1024 * 1024;
1121 case INTEL_915G_GMCH_GMS_STOLEN_64M
:
1122 stolen
= 64 * 1024 * 1024;
1124 case INTEL_GMCH_GMS_STOLEN_128M
:
1125 stolen
= 128 * 1024 * 1024;
1127 case INTEL_GMCH_GMS_STOLEN_256M
:
1128 stolen
= 256 * 1024 * 1024;
1130 case INTEL_GMCH_GMS_STOLEN_96M
:
1131 stolen
= 96 * 1024 * 1024;
1133 case INTEL_GMCH_GMS_STOLEN_160M
:
1134 stolen
= 160 * 1024 * 1024;
1136 case INTEL_GMCH_GMS_STOLEN_224M
:
1137 stolen
= 224 * 1024 * 1024;
1139 case INTEL_GMCH_GMS_STOLEN_352M
:
1140 stolen
= 352 * 1024 * 1024;
1143 DRM_ERROR("unexpected GMCH_GMS value: 0x%02x\n",
1144 tmp
& INTEL_GMCH_GMS_MASK
);
1149 *preallocated_size
= stolen
- overhead
;
1155 #define PTE_ADDRESS_MASK 0xfffff000
1156 #define PTE_ADDRESS_MASK_HIGH 0x000000f0 /* i915+ */
1157 #define PTE_MAPPING_TYPE_UNCACHED (0 << 1)
1158 #define PTE_MAPPING_TYPE_DCACHE (1 << 1) /* i830 only */
1159 #define PTE_MAPPING_TYPE_CACHED (3 << 1)
1160 #define PTE_MAPPING_TYPE_MASK (3 << 1)
1161 #define PTE_VALID (1 << 0)
1164 * i915_gtt_to_phys - take a GTT address and turn it into a physical one
1166 * @gtt_addr: address to translate
1168 * Some chip functions require allocations from stolen space but need the
1169 * physical address of the memory in question. We use this routine
1170 * to get a physical address suitable for register programming from a given
1173 static unsigned long i915_gtt_to_phys(struct drm_device
*dev
,
1174 unsigned long gtt_addr
)
1177 unsigned long entry
, phys
;
1178 int gtt_bar
= IS_I9XX(dev
) ? 0 : 1;
1179 int gtt_offset
, gtt_size
;
1181 if (IS_I965G(dev
)) {
1182 if (IS_G4X(dev
) || IS_IRONLAKE(dev
) || IS_GEN6(dev
)) {
1183 gtt_offset
= 2*1024*1024;
1184 gtt_size
= 2*1024*1024;
1186 gtt_offset
= 512*1024;
1187 gtt_size
= 512*1024;
1192 gtt_size
= pci_resource_len(dev
->pdev
, gtt_bar
);
1195 gtt
= ioremap_wc(pci_resource_start(dev
->pdev
, gtt_bar
) + gtt_offset
,
1198 DRM_ERROR("ioremap of GTT failed\n");
1202 entry
= *(volatile u32
*)(gtt
+ (gtt_addr
/ 1024));
1204 DRM_DEBUG_DRIVER("GTT addr: 0x%08lx, PTE: 0x%08lx\n", gtt_addr
, entry
);
1206 /* Mask out these reserved bits on this hardware. */
1207 if (!IS_I9XX(dev
) || IS_I915G(dev
) || IS_I915GM(dev
) ||
1208 IS_I945G(dev
) || IS_I945GM(dev
)) {
1209 entry
&= ~PTE_ADDRESS_MASK_HIGH
;
1212 /* If it's not a mapping type we know, then bail. */
1213 if ((entry
& PTE_MAPPING_TYPE_MASK
) != PTE_MAPPING_TYPE_UNCACHED
&&
1214 (entry
& PTE_MAPPING_TYPE_MASK
) != PTE_MAPPING_TYPE_CACHED
) {
1219 if (!(entry
& PTE_VALID
)) {
1220 DRM_ERROR("bad GTT entry in stolen space\n");
1227 phys
=(entry
& PTE_ADDRESS_MASK
) |
1228 ((uint64_t)(entry
& PTE_ADDRESS_MASK_HIGH
) << (32 - 4));
1230 DRM_DEBUG_DRIVER("GTT addr: 0x%08lx, phys addr: 0x%08lx\n", gtt_addr
, phys
);
1235 static void i915_warn_stolen(struct drm_device
*dev
)
1237 DRM_ERROR("not enough stolen space for compressed buffer, disabling\n");
1238 DRM_ERROR("hint: you may be able to increase stolen memory size in the BIOS to avoid this\n");
1241 static void i915_setup_compression(struct drm_device
*dev
, int size
)
1243 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1244 struct drm_mm_node
*compressed_fb
, *uninitialized_var(compressed_llb
);
1245 unsigned long cfb_base
;
1246 unsigned long ll_base
= 0;
1248 /* Leave 1M for line length buffer & misc. */
1249 compressed_fb
= drm_mm_search_free(&dev_priv
->vram
, size
, 4096, 0);
1250 if (!compressed_fb
) {
1251 dev_priv
->no_fbc_reason
= FBC_STOLEN_TOO_SMALL
;
1252 i915_warn_stolen(dev
);
1256 compressed_fb
= drm_mm_get_block(compressed_fb
, size
, 4096);
1257 if (!compressed_fb
) {
1258 i915_warn_stolen(dev
);
1259 dev_priv
->no_fbc_reason
= FBC_STOLEN_TOO_SMALL
;
1263 cfb_base
= i915_gtt_to_phys(dev
, compressed_fb
->start
);
1265 DRM_ERROR("failed to get stolen phys addr, disabling FBC\n");
1266 drm_mm_put_block(compressed_fb
);
1269 if (!(IS_GM45(dev
) || IS_IRONLAKE_M(dev
))) {
1270 compressed_llb
= drm_mm_search_free(&dev_priv
->vram
, 4096,
1272 if (!compressed_llb
) {
1273 i915_warn_stolen(dev
);
1277 compressed_llb
= drm_mm_get_block(compressed_llb
, 4096, 4096);
1278 if (!compressed_llb
) {
1279 i915_warn_stolen(dev
);
1283 ll_base
= i915_gtt_to_phys(dev
, compressed_llb
->start
);
1285 DRM_ERROR("failed to get stolen phys addr, disabling FBC\n");
1286 drm_mm_put_block(compressed_fb
);
1287 drm_mm_put_block(compressed_llb
);
1291 dev_priv
->cfb_size
= size
;
1293 intel_disable_fbc(dev
);
1294 dev_priv
->compressed_fb
= compressed_fb
;
1295 if (IS_IRONLAKE_M(dev
))
1296 I915_WRITE(ILK_DPFC_CB_BASE
, compressed_fb
->start
);
1297 else if (IS_GM45(dev
)) {
1298 I915_WRITE(DPFC_CB_BASE
, compressed_fb
->start
);
1300 I915_WRITE(FBC_CFB_BASE
, cfb_base
);
1301 I915_WRITE(FBC_LL_BASE
, ll_base
);
1302 dev_priv
->compressed_llb
= compressed_llb
;
1305 DRM_DEBUG_KMS("FBC base 0x%08lx, ll base 0x%08lx, size %dM\n", cfb_base
,
1306 ll_base
, size
>> 20);
1309 static void i915_cleanup_compression(struct drm_device
*dev
)
1311 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1313 drm_mm_put_block(dev_priv
->compressed_fb
);
1314 if (dev_priv
->compressed_llb
)
1315 drm_mm_put_block(dev_priv
->compressed_llb
);
1318 /* true = enable decode, false = disable decoder */
1319 static unsigned int i915_vga_set_decode(void *cookie
, bool state
)
1321 struct drm_device
*dev
= cookie
;
1323 intel_modeset_vga_set_state(dev
, state
);
1325 return VGA_RSRC_LEGACY_IO
| VGA_RSRC_LEGACY_MEM
|
1326 VGA_RSRC_NORMAL_IO
| VGA_RSRC_NORMAL_MEM
;
1328 return VGA_RSRC_NORMAL_IO
| VGA_RSRC_NORMAL_MEM
;
1331 static void i915_switcheroo_set_state(struct pci_dev
*pdev
, enum vga_switcheroo_state state
)
1333 struct drm_device
*dev
= pci_get_drvdata(pdev
);
1334 pm_message_t pmm
= { .event
= PM_EVENT_SUSPEND
};
1335 if (state
== VGA_SWITCHEROO_ON
) {
1336 printk(KERN_INFO
"i915: switched on\n");
1337 /* i915 resume handler doesn't set to D0 */
1338 pci_set_power_state(dev
->pdev
, PCI_D0
);
1340 drm_kms_helper_poll_enable(dev
);
1342 printk(KERN_ERR
"i915: switched off\n");
1343 drm_kms_helper_poll_disable(dev
);
1344 i915_suspend(dev
, pmm
);
1348 static bool i915_switcheroo_can_switch(struct pci_dev
*pdev
)
1350 struct drm_device
*dev
= pci_get_drvdata(pdev
);
1353 spin_lock(&dev
->count_lock
);
1354 can_switch
= (dev
->open_count
== 0);
1355 spin_unlock(&dev
->count_lock
);
1359 static int i915_load_modeset_init(struct drm_device
*dev
,
1360 unsigned long prealloc_start
,
1361 unsigned long prealloc_size
,
1362 unsigned long agp_size
)
1364 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1365 int fb_bar
= IS_I9XX(dev
) ? 2 : 0;
1368 dev
->mode_config
.fb_base
= pci_resource_start(dev
->pdev
, fb_bar
) &
1371 /* Basic memrange allocator for stolen space (aka vram) */
1372 drm_mm_init(&dev_priv
->vram
, 0, prealloc_size
);
1373 DRM_INFO("set up %ldM of stolen space\n", prealloc_size
/ (1024*1024));
1375 /* We're off and running w/KMS */
1376 dev_priv
->mm
.suspended
= 0;
1378 /* Let GEM Manage from end of prealloc space to end of aperture.
1380 * However, leave one page at the end still bound to the scratch page.
1381 * There are a number of places where the hardware apparently
1382 * prefetches past the end of the object, and we've seen multiple
1383 * hangs with the GPU head pointer stuck in a batchbuffer bound
1384 * at the last page of the aperture. One page should be enough to
1385 * keep any prefetching inside of the aperture.
1387 i915_gem_do_init(dev
, prealloc_size
, agp_size
- 4096);
1389 mutex_lock(&dev
->struct_mutex
);
1390 ret
= i915_gem_init_ringbuffer(dev
);
1391 mutex_unlock(&dev
->struct_mutex
);
1395 /* Try to set up FBC with a reasonable compressed buffer size */
1396 if (I915_HAS_FBC(dev
) && i915_powersave
) {
1399 /* Try to get an 8M buffer... */
1400 if (prealloc_size
> (9*1024*1024))
1401 cfb_size
= 8*1024*1024;
1402 else /* fall back to 7/8 of the stolen space */
1403 cfb_size
= prealloc_size
* 7 / 8;
1404 i915_setup_compression(dev
, cfb_size
);
1407 /* Allow hardware batchbuffers unless told otherwise.
1409 dev_priv
->allow_batchbuffer
= 1;
1411 ret
= intel_init_bios(dev
);
1413 DRM_INFO("failed to find VBIOS tables\n");
1415 /* if we have > 1 VGA cards, then disable the radeon VGA resources */
1416 ret
= vga_client_register(dev
->pdev
, dev
, NULL
, i915_vga_set_decode
);
1418 goto cleanup_ringbuffer
;
1420 ret
= vga_switcheroo_register_client(dev
->pdev
,
1421 i915_switcheroo_set_state
,
1422 i915_switcheroo_can_switch
);
1424 goto cleanup_vga_client
;
1426 /* IIR "flip pending" bit means done if this bit is set */
1427 if (IS_GEN3(dev
) && (I915_READ(ECOSKPD
) & ECO_FLIP_DONE
))
1428 dev_priv
->flip_pending_is_done
= true;
1430 intel_modeset_init(dev
);
1432 ret
= drm_irq_install(dev
);
1434 goto cleanup_vga_switcheroo
;
1436 /* Always safe in the mode setting case. */
1437 /* FIXME: do pre/post-mode set stuff in core KMS code */
1438 dev
->vblank_disable_allowed
= 1;
1441 * Initialize the hardware status page IRQ location.
1444 I915_WRITE(INSTPM
, (1 << 5) | (1 << 21));
1446 ret
= intel_fbdev_init(dev
);
1450 drm_kms_helper_poll_init(dev
);
1454 drm_irq_uninstall(dev
);
1455 cleanup_vga_switcheroo
:
1456 vga_switcheroo_unregister_client(dev
->pdev
);
1458 vga_client_register(dev
->pdev
, NULL
, NULL
, NULL
);
1460 mutex_lock(&dev
->struct_mutex
);
1461 i915_gem_cleanup_ringbuffer(dev
);
1462 mutex_unlock(&dev
->struct_mutex
);
1467 int i915_master_create(struct drm_device
*dev
, struct drm_master
*master
)
1469 struct drm_i915_master_private
*master_priv
;
1471 master_priv
= kzalloc(sizeof(*master_priv
), GFP_KERNEL
);
1475 master
->driver_priv
= master_priv
;
1479 void i915_master_destroy(struct drm_device
*dev
, struct drm_master
*master
)
1481 struct drm_i915_master_private
*master_priv
= master
->driver_priv
;
1488 master
->driver_priv
= NULL
;
1491 static void i915_pineview_get_mem_freq(struct drm_device
*dev
)
1493 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
1496 tmp
= I915_READ(CLKCFG
);
1498 switch (tmp
& CLKCFG_FSB_MASK
) {
1499 case CLKCFG_FSB_533
:
1500 dev_priv
->fsb_freq
= 533; /* 133*4 */
1502 case CLKCFG_FSB_800
:
1503 dev_priv
->fsb_freq
= 800; /* 200*4 */
1505 case CLKCFG_FSB_667
:
1506 dev_priv
->fsb_freq
= 667; /* 167*4 */
1508 case CLKCFG_FSB_400
:
1509 dev_priv
->fsb_freq
= 400; /* 100*4 */
1513 switch (tmp
& CLKCFG_MEM_MASK
) {
1514 case CLKCFG_MEM_533
:
1515 dev_priv
->mem_freq
= 533;
1517 case CLKCFG_MEM_667
:
1518 dev_priv
->mem_freq
= 667;
1520 case CLKCFG_MEM_800
:
1521 dev_priv
->mem_freq
= 800;
1525 /* detect pineview DDR3 setting */
1526 tmp
= I915_READ(CSHRDDR3CTL
);
1527 dev_priv
->is_ddr3
= (tmp
& CSHRDDR3CTL_DDR3
) ? 1 : 0;
1530 static void i915_ironlake_get_mem_freq(struct drm_device
*dev
)
1532 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
1535 ddrpll
= I915_READ16(DDRMPLL1
);
1536 csipll
= I915_READ16(CSIPLL0
);
1538 switch (ddrpll
& 0xff) {
1540 dev_priv
->mem_freq
= 800;
1543 dev_priv
->mem_freq
= 1066;
1546 dev_priv
->mem_freq
= 1333;
1549 dev_priv
->mem_freq
= 1600;
1552 DRM_DEBUG_DRIVER("unknown memory frequency 0x%02x\n",
1554 dev_priv
->mem_freq
= 0;
1558 dev_priv
->r_t
= dev_priv
->mem_freq
;
1560 switch (csipll
& 0x3ff) {
1562 dev_priv
->fsb_freq
= 3200;
1565 dev_priv
->fsb_freq
= 3733;
1568 dev_priv
->fsb_freq
= 4266;
1571 dev_priv
->fsb_freq
= 4800;
1574 dev_priv
->fsb_freq
= 5333;
1577 dev_priv
->fsb_freq
= 5866;
1580 dev_priv
->fsb_freq
= 6400;
1583 DRM_DEBUG_DRIVER("unknown fsb frequency 0x%04x\n",
1585 dev_priv
->fsb_freq
= 0;
1589 if (dev_priv
->fsb_freq
== 3200) {
1591 } else if (dev_priv
->fsb_freq
> 3200 && dev_priv
->fsb_freq
<= 4800) {
1600 unsigned long vd
; /* in .1 mil */
1601 unsigned long vm
; /* in .1 mil */
1605 static struct v_table v_table
[] = {
1606 { 0, 16125, 15000, 0x7f, },
1607 { 1, 16000, 14875, 0x7e, },
1608 { 2, 15875, 14750, 0x7d, },
1609 { 3, 15750, 14625, 0x7c, },
1610 { 4, 15625, 14500, 0x7b, },
1611 { 5, 15500, 14375, 0x7a, },
1612 { 6, 15375, 14250, 0x79, },
1613 { 7, 15250, 14125, 0x78, },
1614 { 8, 15125, 14000, 0x77, },
1615 { 9, 15000, 13875, 0x76, },
1616 { 10, 14875, 13750, 0x75, },
1617 { 11, 14750, 13625, 0x74, },
1618 { 12, 14625, 13500, 0x73, },
1619 { 13, 14500, 13375, 0x72, },
1620 { 14, 14375, 13250, 0x71, },
1621 { 15, 14250, 13125, 0x70, },
1622 { 16, 14125, 13000, 0x6f, },
1623 { 17, 14000, 12875, 0x6e, },
1624 { 18, 13875, 12750, 0x6d, },
1625 { 19, 13750, 12625, 0x6c, },
1626 { 20, 13625, 12500, 0x6b, },
1627 { 21, 13500, 12375, 0x6a, },
1628 { 22, 13375, 12250, 0x69, },
1629 { 23, 13250, 12125, 0x68, },
1630 { 24, 13125, 12000, 0x67, },
1631 { 25, 13000, 11875, 0x66, },
1632 { 26, 12875, 11750, 0x65, },
1633 { 27, 12750, 11625, 0x64, },
1634 { 28, 12625, 11500, 0x63, },
1635 { 29, 12500, 11375, 0x62, },
1636 { 30, 12375, 11250, 0x61, },
1637 { 31, 12250, 11125, 0x60, },
1638 { 32, 12125, 11000, 0x5f, },
1639 { 33, 12000, 10875, 0x5e, },
1640 { 34, 11875, 10750, 0x5d, },
1641 { 35, 11750, 10625, 0x5c, },
1642 { 36, 11625, 10500, 0x5b, },
1643 { 37, 11500, 10375, 0x5a, },
1644 { 38, 11375, 10250, 0x59, },
1645 { 39, 11250, 10125, 0x58, },
1646 { 40, 11125, 10000, 0x57, },
1647 { 41, 11000, 9875, 0x56, },
1648 { 42, 10875, 9750, 0x55, },
1649 { 43, 10750, 9625, 0x54, },
1650 { 44, 10625, 9500, 0x53, },
1651 { 45, 10500, 9375, 0x52, },
1652 { 46, 10375, 9250, 0x51, },
1653 { 47, 10250, 9125, 0x50, },
1654 { 48, 10125, 9000, 0x4f, },
1655 { 49, 10000, 8875, 0x4e, },
1656 { 50, 9875, 8750, 0x4d, },
1657 { 51, 9750, 8625, 0x4c, },
1658 { 52, 9625, 8500, 0x4b, },
1659 { 53, 9500, 8375, 0x4a, },
1660 { 54, 9375, 8250, 0x49, },
1661 { 55, 9250, 8125, 0x48, },
1662 { 56, 9125, 8000, 0x47, },
1663 { 57, 9000, 7875, 0x46, },
1664 { 58, 8875, 7750, 0x45, },
1665 { 59, 8750, 7625, 0x44, },
1666 { 60, 8625, 7500, 0x43, },
1667 { 61, 8500, 7375, 0x42, },
1668 { 62, 8375, 7250, 0x41, },
1669 { 63, 8250, 7125, 0x40, },
1670 { 64, 8125, 7000, 0x3f, },
1671 { 65, 8000, 6875, 0x3e, },
1672 { 66, 7875, 6750, 0x3d, },
1673 { 67, 7750, 6625, 0x3c, },
1674 { 68, 7625, 6500, 0x3b, },
1675 { 69, 7500, 6375, 0x3a, },
1676 { 70, 7375, 6250, 0x39, },
1677 { 71, 7250, 6125, 0x38, },
1678 { 72, 7125, 6000, 0x37, },
1679 { 73, 7000, 5875, 0x36, },
1680 { 74, 6875, 5750, 0x35, },
1681 { 75, 6750, 5625, 0x34, },
1682 { 76, 6625, 5500, 0x33, },
1683 { 77, 6500, 5375, 0x32, },
1684 { 78, 6375, 5250, 0x31, },
1685 { 79, 6250, 5125, 0x30, },
1686 { 80, 6125, 5000, 0x2f, },
1687 { 81, 6000, 4875, 0x2e, },
1688 { 82, 5875, 4750, 0x2d, },
1689 { 83, 5750, 4625, 0x2c, },
1690 { 84, 5625, 4500, 0x2b, },
1691 { 85, 5500, 4375, 0x2a, },
1692 { 86, 5375, 4250, 0x29, },
1693 { 87, 5250, 4125, 0x28, },
1694 { 88, 5125, 4000, 0x27, },
1695 { 89, 5000, 3875, 0x26, },
1696 { 90, 4875, 3750, 0x25, },
1697 { 91, 4750, 3625, 0x24, },
1698 { 92, 4625, 3500, 0x23, },
1699 { 93, 4500, 3375, 0x22, },
1700 { 94, 4375, 3250, 0x21, },
1701 { 95, 4250, 3125, 0x20, },
1702 { 96, 4125, 3000, 0x1f, },
1703 { 97, 4125, 3000, 0x1e, },
1704 { 98, 4125, 3000, 0x1d, },
1705 { 99, 4125, 3000, 0x1c, },
1706 { 100, 4125, 3000, 0x1b, },
1707 { 101, 4125, 3000, 0x1a, },
1708 { 102, 4125, 3000, 0x19, },
1709 { 103, 4125, 3000, 0x18, },
1710 { 104, 4125, 3000, 0x17, },
1711 { 105, 4125, 3000, 0x16, },
1712 { 106, 4125, 3000, 0x15, },
1713 { 107, 4125, 3000, 0x14, },
1714 { 108, 4125, 3000, 0x13, },
1715 { 109, 4125, 3000, 0x12, },
1716 { 110, 4125, 3000, 0x11, },
1717 { 111, 4125, 3000, 0x10, },
1718 { 112, 4125, 3000, 0x0f, },
1719 { 113, 4125, 3000, 0x0e, },
1720 { 114, 4125, 3000, 0x0d, },
1721 { 115, 4125, 3000, 0x0c, },
1722 { 116, 4125, 3000, 0x0b, },
1723 { 117, 4125, 3000, 0x0a, },
1724 { 118, 4125, 3000, 0x09, },
1725 { 119, 4125, 3000, 0x08, },
1726 { 120, 1125, 0, 0x07, },
1727 { 121, 1000, 0, 0x06, },
1728 { 122, 875, 0, 0x05, },
1729 { 123, 750, 0, 0x04, },
1730 { 124, 625, 0, 0x03, },
1731 { 125, 500, 0, 0x02, },
1732 { 126, 375, 0, 0x01, },
1733 { 127, 0, 0, 0x00, },
1743 static struct cparams cparams
[] = {
1744 { 1, 1333, 301, 28664 },
1745 { 1, 1066, 294, 24460 },
1746 { 1, 800, 294, 25192 },
1747 { 0, 1333, 276, 27605 },
1748 { 0, 1066, 276, 27605 },
1749 { 0, 800, 231, 23784 },
1752 unsigned long i915_chipset_val(struct drm_i915_private
*dev_priv
)
1754 u64 total_count
, diff
, ret
;
1755 u32 count1
, count2
, count3
, m
= 0, c
= 0;
1756 unsigned long now
= jiffies_to_msecs(jiffies
), diff1
;
1759 diff1
= now
- dev_priv
->last_time1
;
1761 count1
= I915_READ(DMIEC
);
1762 count2
= I915_READ(DDREC
);
1763 count3
= I915_READ(CSIEC
);
1765 total_count
= count1
+ count2
+ count3
;
1767 /* FIXME: handle per-counter overflow */
1768 if (total_count
< dev_priv
->last_count1
) {
1769 diff
= ~0UL - dev_priv
->last_count1
;
1770 diff
+= total_count
;
1772 diff
= total_count
- dev_priv
->last_count1
;
1775 for (i
= 0; i
< ARRAY_SIZE(cparams
); i
++) {
1776 if (cparams
[i
].i
== dev_priv
->c_m
&&
1777 cparams
[i
].t
== dev_priv
->r_t
) {
1784 div_u64(diff
, diff1
);
1785 ret
= ((m
* diff
) + c
);
1788 dev_priv
->last_count1
= total_count
;
1789 dev_priv
->last_time1
= now
;
1794 unsigned long i915_mch_val(struct drm_i915_private
*dev_priv
)
1796 unsigned long m
, x
, b
;
1799 tsfs
= I915_READ(TSFS
);
1801 m
= ((tsfs
& TSFS_SLOPE_MASK
) >> TSFS_SLOPE_SHIFT
);
1802 x
= I915_READ8(TR1
);
1804 b
= tsfs
& TSFS_INTR_MASK
;
1806 return ((m
* x
) / 127) - b
;
1809 static unsigned long pvid_to_extvid(struct drm_i915_private
*dev_priv
, u8 pxvid
)
1811 unsigned long val
= 0;
1814 for (i
= 0; i
< ARRAY_SIZE(v_table
); i
++) {
1815 if (v_table
[i
].pvid
== pxvid
) {
1816 if (IS_MOBILE(dev_priv
->dev
))
1817 val
= v_table
[i
].vm
;
1819 val
= v_table
[i
].vd
;
1826 void i915_update_gfx_val(struct drm_i915_private
*dev_priv
)
1828 struct timespec now
, diff1
;
1830 unsigned long diffms
;
1833 getrawmonotonic(&now
);
1834 diff1
= timespec_sub(now
, dev_priv
->last_time2
);
1836 /* Don't divide by 0 */
1837 diffms
= diff1
.tv_sec
* 1000 + diff1
.tv_nsec
/ 1000000;
1841 count
= I915_READ(GFXEC
);
1843 if (count
< dev_priv
->last_count2
) {
1844 diff
= ~0UL - dev_priv
->last_count2
;
1847 diff
= count
- dev_priv
->last_count2
;
1850 dev_priv
->last_count2
= count
;
1851 dev_priv
->last_time2
= now
;
1853 /* More magic constants... */
1855 div_u64(diff
, diffms
* 10);
1856 dev_priv
->gfx_power
= diff
;
1859 unsigned long i915_gfx_val(struct drm_i915_private
*dev_priv
)
1861 unsigned long t
, corr
, state1
, corr2
, state2
;
1864 pxvid
= I915_READ(PXVFREQ_BASE
+ (dev_priv
->cur_delay
* 4));
1865 pxvid
= (pxvid
>> 24) & 0x7f;
1866 ext_v
= pvid_to_extvid(dev_priv
, pxvid
);
1870 t
= i915_mch_val(dev_priv
);
1872 /* Revel in the empirically derived constants */
1874 /* Correction factor in 1/100000 units */
1876 corr
= ((t
* 2349) + 135940);
1878 corr
= ((t
* 964) + 29317);
1880 corr
= ((t
* 301) + 1004);
1882 corr
= corr
* ((150142 * state1
) / 10000 - 78642);
1884 corr2
= (corr
* dev_priv
->corr
);
1886 state2
= (corr2
* state1
) / 10000;
1887 state2
/= 100; /* convert to mW */
1889 i915_update_gfx_val(dev_priv
);
1891 return dev_priv
->gfx_power
+ state2
;
1894 /* Global for IPS driver to get at the current i915 device */
1895 static struct drm_i915_private
*i915_mch_dev
;
1897 * Lock protecting IPS related data structures
1899 * - dev_priv->max_delay
1900 * - dev_priv->min_delay
1902 * - dev_priv->gpu_busy
1904 DEFINE_SPINLOCK(mchdev_lock
);
1907 * i915_read_mch_val - return value for IPS use
1909 * Calculate and return a value for the IPS driver to use when deciding whether
1910 * we have thermal and power headroom to increase CPU or GPU power budget.
1912 unsigned long i915_read_mch_val(void)
1914 struct drm_i915_private
*dev_priv
;
1915 unsigned long chipset_val
, graphics_val
, ret
= 0;
1917 spin_lock(&mchdev_lock
);
1920 dev_priv
= i915_mch_dev
;
1922 chipset_val
= i915_chipset_val(dev_priv
);
1923 graphics_val
= i915_gfx_val(dev_priv
);
1925 ret
= chipset_val
+ graphics_val
;
1928 spin_unlock(&mchdev_lock
);
1932 EXPORT_SYMBOL_GPL(i915_read_mch_val
);
1935 * i915_gpu_raise - raise GPU frequency limit
1937 * Raise the limit; IPS indicates we have thermal headroom.
1939 bool i915_gpu_raise(void)
1941 struct drm_i915_private
*dev_priv
;
1944 spin_lock(&mchdev_lock
);
1945 if (!i915_mch_dev
) {
1949 dev_priv
= i915_mch_dev
;
1951 if (dev_priv
->max_delay
> dev_priv
->fmax
)
1952 dev_priv
->max_delay
--;
1955 spin_unlock(&mchdev_lock
);
1959 EXPORT_SYMBOL_GPL(i915_gpu_raise
);
1962 * i915_gpu_lower - lower GPU frequency limit
1964 * IPS indicates we're close to a thermal limit, so throttle back the GPU
1965 * frequency maximum.
1967 bool i915_gpu_lower(void)
1969 struct drm_i915_private
*dev_priv
;
1972 spin_lock(&mchdev_lock
);
1973 if (!i915_mch_dev
) {
1977 dev_priv
= i915_mch_dev
;
1979 if (dev_priv
->max_delay
< dev_priv
->min_delay
)
1980 dev_priv
->max_delay
++;
1983 spin_unlock(&mchdev_lock
);
1987 EXPORT_SYMBOL_GPL(i915_gpu_lower
);
1990 * i915_gpu_busy - indicate GPU business to IPS
1992 * Tell the IPS driver whether or not the GPU is busy.
1994 bool i915_gpu_busy(void)
1996 struct drm_i915_private
*dev_priv
;
1999 spin_lock(&mchdev_lock
);
2002 dev_priv
= i915_mch_dev
;
2004 ret
= dev_priv
->busy
;
2007 spin_unlock(&mchdev_lock
);
2011 EXPORT_SYMBOL_GPL(i915_gpu_busy
);
2014 * i915_gpu_turbo_disable - disable graphics turbo
2016 * Disable graphics turbo by resetting the max frequency and setting the
2017 * current frequency to the default.
2019 bool i915_gpu_turbo_disable(void)
2021 struct drm_i915_private
*dev_priv
;
2024 spin_lock(&mchdev_lock
);
2025 if (!i915_mch_dev
) {
2029 dev_priv
= i915_mch_dev
;
2031 dev_priv
->max_delay
= dev_priv
->fstart
;
2033 if (!ironlake_set_drps(dev_priv
->dev
, dev_priv
->fstart
))
2037 spin_unlock(&mchdev_lock
);
2041 EXPORT_SYMBOL_GPL(i915_gpu_turbo_disable
);
2044 * i915_driver_load - setup chip and create an initial config
2046 * @flags: startup flags
2048 * The driver load routine has to do several things:
2049 * - drive output discovery via intel_modeset_init()
2050 * - initialize the memory manager
2051 * - allocate initial config memory
2052 * - setup the DRM framebuffer with the allocated memory
2054 int i915_driver_load(struct drm_device
*dev
, unsigned long flags
)
2056 struct drm_i915_private
*dev_priv
;
2057 resource_size_t base
, size
;
2058 int ret
= 0, mmio_bar
;
2059 uint32_t agp_size
, prealloc_size
, prealloc_start
;
2060 /* i915 has 4 more counters */
2062 dev
->types
[6] = _DRM_STAT_IRQ
;
2063 dev
->types
[7] = _DRM_STAT_PRIMARY
;
2064 dev
->types
[8] = _DRM_STAT_SECONDARY
;
2065 dev
->types
[9] = _DRM_STAT_DMA
;
2067 dev_priv
= kzalloc(sizeof(drm_i915_private_t
), GFP_KERNEL
);
2068 if (dev_priv
== NULL
)
2071 dev
->dev_private
= (void *)dev_priv
;
2072 dev_priv
->dev
= dev
;
2073 dev_priv
->info
= (struct intel_device_info
*) flags
;
2075 /* Add register map (needed for suspend/resume) */
2076 mmio_bar
= IS_I9XX(dev
) ? 0 : 1;
2077 base
= pci_resource_start(dev
->pdev
, mmio_bar
);
2078 size
= pci_resource_len(dev
->pdev
, mmio_bar
);
2080 if (i915_get_bridge_dev(dev
)) {
2085 dev_priv
->regs
= ioremap(base
, size
);
2086 if (!dev_priv
->regs
) {
2087 DRM_ERROR("failed to map registers\n");
2092 dev_priv
->mm
.gtt_mapping
=
2093 io_mapping_create_wc(dev
->agp
->base
,
2094 dev
->agp
->agp_info
.aper_size
* 1024*1024);
2095 if (dev_priv
->mm
.gtt_mapping
== NULL
) {
2100 /* Set up a WC MTRR for non-PAT systems. This is more common than
2101 * one would think, because the kernel disables PAT on first
2102 * generation Core chips because WC PAT gets overridden by a UC
2103 * MTRR if present. Even if a UC MTRR isn't present.
2105 dev_priv
->mm
.gtt_mtrr
= mtrr_add(dev
->agp
->base
,
2106 dev
->agp
->agp_info
.aper_size
*
2108 MTRR_TYPE_WRCOMB
, 1);
2109 if (dev_priv
->mm
.gtt_mtrr
< 0) {
2110 DRM_INFO("MTRR allocation failed. Graphics "
2111 "performance may suffer.\n");
2114 ret
= i915_probe_agp(dev
, &agp_size
, &prealloc_size
, &prealloc_start
);
2118 if (prealloc_size
> intel_max_stolen
) {
2119 DRM_INFO("detected %dM stolen memory, trimming to %dM\n",
2120 prealloc_size
>> 20, intel_max_stolen
>> 20);
2121 prealloc_size
= intel_max_stolen
;
2124 dev_priv
->wq
= create_singlethread_workqueue("i915");
2125 if (dev_priv
->wq
== NULL
) {
2126 DRM_ERROR("Failed to create our workqueue.\n");
2131 /* enable GEM by default */
2132 dev_priv
->has_gem
= 1;
2134 if (prealloc_size
> agp_size
* 3 / 4) {
2135 DRM_ERROR("Detected broken video BIOS with %d/%dkB of video "
2137 prealloc_size
/ 1024, agp_size
/ 1024);
2138 DRM_ERROR("Disabling GEM. (try reducing stolen memory or "
2139 "updating the BIOS to fix).\n");
2140 dev_priv
->has_gem
= 0;
2143 if (dev_priv
->has_gem
== 0 &&
2144 drm_core_check_feature(dev
, DRIVER_MODESET
)) {
2145 DRM_ERROR("kernel modesetting requires GEM, disabling driver.\n");
2150 dev
->driver
->get_vblank_counter
= i915_get_vblank_counter
;
2151 dev
->max_vblank_count
= 0xffffff; /* only 24 bits of frame count */
2152 if (IS_G4X(dev
) || IS_IRONLAKE(dev
) || IS_GEN6(dev
)) {
2153 dev
->max_vblank_count
= 0xffffffff; /* full 32 bit counter */
2154 dev
->driver
->get_vblank_counter
= gm45_get_vblank_counter
;
2157 /* Try to make sure MCHBAR is enabled before poking at it */
2158 intel_setup_mchbar(dev
);
2163 if (!I915_NEED_GFX_HWS(dev
)) {
2164 ret
= i915_init_phys_hws(dev
);
2166 goto out_workqueue_free
;
2169 if (IS_PINEVIEW(dev
))
2170 i915_pineview_get_mem_freq(dev
);
2171 else if (IS_IRONLAKE(dev
))
2172 i915_ironlake_get_mem_freq(dev
);
2174 /* On the 945G/GM, the chipset reports the MSI capability on the
2175 * integrated graphics even though the support isn't actually there
2176 * according to the published specs. It doesn't appear to function
2177 * correctly in testing on 945G.
2178 * This may be a side effect of MSI having been made available for PEG
2179 * and the registers being closely associated.
2181 * According to chipset errata, on the 965GM, MSI interrupts may
2182 * be lost or delayed, but we use them anyways to avoid
2183 * stuck interrupts on some machines.
2185 if (!IS_I945G(dev
) && !IS_I945GM(dev
))
2186 pci_enable_msi(dev
->pdev
);
2188 spin_lock_init(&dev_priv
->user_irq_lock
);
2189 spin_lock_init(&dev_priv
->error_lock
);
2190 dev_priv
->trace_irq_seqno
= 0;
2192 ret
= drm_vblank_init(dev
, I915_NUM_PIPE
);
2195 (void) i915_driver_unload(dev
);
2199 /* Start out suspended */
2200 dev_priv
->mm
.suspended
= 1;
2202 intel_detect_pch(dev
);
2204 if (drm_core_check_feature(dev
, DRIVER_MODESET
)) {
2205 ret
= i915_load_modeset_init(dev
, prealloc_start
,
2206 prealloc_size
, agp_size
);
2208 DRM_ERROR("failed to init modeset\n");
2209 goto out_workqueue_free
;
2213 /* Must be done after probing outputs */
2214 intel_opregion_init(dev
, 0);
2216 setup_timer(&dev_priv
->hangcheck_timer
, i915_hangcheck_elapsed
,
2217 (unsigned long) dev
);
2219 spin_lock(&mchdev_lock
);
2220 i915_mch_dev
= dev_priv
;
2221 dev_priv
->mchdev_lock
= &mchdev_lock
;
2222 spin_unlock(&mchdev_lock
);
2227 destroy_workqueue(dev_priv
->wq
);
2229 io_mapping_free(dev_priv
->mm
.gtt_mapping
);
2231 iounmap(dev_priv
->regs
);
2233 pci_dev_put(dev_priv
->bridge_dev
);
2239 int i915_driver_unload(struct drm_device
*dev
)
2241 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2243 i915_destroy_error_state(dev
);
2245 spin_lock(&mchdev_lock
);
2246 i915_mch_dev
= NULL
;
2247 spin_unlock(&mchdev_lock
);
2249 destroy_workqueue(dev_priv
->wq
);
2250 del_timer_sync(&dev_priv
->hangcheck_timer
);
2252 io_mapping_free(dev_priv
->mm
.gtt_mapping
);
2253 if (dev_priv
->mm
.gtt_mtrr
>= 0) {
2254 mtrr_del(dev_priv
->mm
.gtt_mtrr
, dev
->agp
->base
,
2255 dev
->agp
->agp_info
.aper_size
* 1024 * 1024);
2256 dev_priv
->mm
.gtt_mtrr
= -1;
2259 if (drm_core_check_feature(dev
, DRIVER_MODESET
)) {
2260 intel_modeset_cleanup(dev
);
2263 * free the memory space allocated for the child device
2264 * config parsed from VBT
2266 if (dev_priv
->child_dev
&& dev_priv
->child_dev_num
) {
2267 kfree(dev_priv
->child_dev
);
2268 dev_priv
->child_dev
= NULL
;
2269 dev_priv
->child_dev_num
= 0;
2271 drm_irq_uninstall(dev
);
2272 vga_switcheroo_unregister_client(dev
->pdev
);
2273 vga_client_register(dev
->pdev
, NULL
, NULL
, NULL
);
2276 if (dev
->pdev
->msi_enabled
)
2277 pci_disable_msi(dev
->pdev
);
2279 if (dev_priv
->regs
!= NULL
)
2280 iounmap(dev_priv
->regs
);
2282 intel_opregion_free(dev
, 0);
2284 if (drm_core_check_feature(dev
, DRIVER_MODESET
)) {
2285 i915_gem_free_all_phys_object(dev
);
2287 mutex_lock(&dev
->struct_mutex
);
2288 i915_gem_cleanup_ringbuffer(dev
);
2289 mutex_unlock(&dev
->struct_mutex
);
2290 if (I915_HAS_FBC(dev
) && i915_powersave
)
2291 i915_cleanup_compression(dev
);
2292 drm_mm_takedown(&dev_priv
->vram
);
2293 i915_gem_lastclose(dev
);
2295 intel_cleanup_overlay(dev
);
2298 intel_teardown_mchbar(dev
);
2300 pci_dev_put(dev_priv
->bridge_dev
);
2301 kfree(dev
->dev_private
);
2306 int i915_driver_open(struct drm_device
*dev
, struct drm_file
*file_priv
)
2308 struct drm_i915_file_private
*i915_file_priv
;
2310 DRM_DEBUG_DRIVER("\n");
2311 i915_file_priv
= (struct drm_i915_file_private
*)
2312 kmalloc(sizeof(*i915_file_priv
), GFP_KERNEL
);
2314 if (!i915_file_priv
)
2317 file_priv
->driver_priv
= i915_file_priv
;
2319 INIT_LIST_HEAD(&i915_file_priv
->mm
.request_list
);
2325 * i915_driver_lastclose - clean up after all DRM clients have exited
2328 * Take care of cleaning up after all DRM clients have exited. In the
2329 * mode setting case, we want to restore the kernel's initial mode (just
2330 * in case the last client left us in a bad state).
2332 * Additionally, in the non-mode setting case, we'll tear down the AGP
2333 * and DMA structures, since the kernel won't be using them, and clea
2336 void i915_driver_lastclose(struct drm_device
* dev
)
2338 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
2340 if (!dev_priv
|| drm_core_check_feature(dev
, DRIVER_MODESET
)) {
2341 drm_fb_helper_restore();
2342 vga_switcheroo_process_delayed_switch();
2346 i915_gem_lastclose(dev
);
2348 if (dev_priv
->agp_heap
)
2349 i915_mem_takedown(&(dev_priv
->agp_heap
));
2351 i915_dma_cleanup(dev
);
2354 void i915_driver_preclose(struct drm_device
* dev
, struct drm_file
*file_priv
)
2356 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
2357 i915_gem_release(dev
, file_priv
);
2358 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
2359 i915_mem_release(dev
, file_priv
, dev_priv
->agp_heap
);
2362 void i915_driver_postclose(struct drm_device
*dev
, struct drm_file
*file_priv
)
2364 struct drm_i915_file_private
*i915_file_priv
= file_priv
->driver_priv
;
2366 kfree(i915_file_priv
);
2369 struct drm_ioctl_desc i915_ioctls
[] = {
2370 DRM_IOCTL_DEF_DRV(I915_INIT
, i915_dma_init
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
2371 DRM_IOCTL_DEF_DRV(I915_FLUSH
, i915_flush_ioctl
, DRM_AUTH
),
2372 DRM_IOCTL_DEF_DRV(I915_FLIP
, i915_flip_bufs
, DRM_AUTH
),
2373 DRM_IOCTL_DEF_DRV(I915_BATCHBUFFER
, i915_batchbuffer
, DRM_AUTH
),
2374 DRM_IOCTL_DEF_DRV(I915_IRQ_EMIT
, i915_irq_emit
, DRM_AUTH
),
2375 DRM_IOCTL_DEF_DRV(I915_IRQ_WAIT
, i915_irq_wait
, DRM_AUTH
),
2376 DRM_IOCTL_DEF_DRV(I915_GETPARAM
, i915_getparam
, DRM_AUTH
),
2377 DRM_IOCTL_DEF_DRV(I915_SETPARAM
, i915_setparam
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
2378 DRM_IOCTL_DEF_DRV(I915_ALLOC
, i915_mem_alloc
, DRM_AUTH
),
2379 DRM_IOCTL_DEF_DRV(I915_FREE
, i915_mem_free
, DRM_AUTH
),
2380 DRM_IOCTL_DEF_DRV(I915_INIT_HEAP
, i915_mem_init_heap
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
2381 DRM_IOCTL_DEF_DRV(I915_CMDBUFFER
, i915_cmdbuffer
, DRM_AUTH
),
2382 DRM_IOCTL_DEF_DRV(I915_DESTROY_HEAP
, i915_mem_destroy_heap
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
2383 DRM_IOCTL_DEF_DRV(I915_SET_VBLANK_PIPE
, i915_vblank_pipe_set
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
2384 DRM_IOCTL_DEF_DRV(I915_GET_VBLANK_PIPE
, i915_vblank_pipe_get
, DRM_AUTH
),
2385 DRM_IOCTL_DEF_DRV(I915_VBLANK_SWAP
, i915_vblank_swap
, DRM_AUTH
),
2386 DRM_IOCTL_DEF_DRV(I915_HWS_ADDR
, i915_set_status_page
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
2387 DRM_IOCTL_DEF_DRV(I915_GEM_INIT
, i915_gem_init_ioctl
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
|DRM_UNLOCKED
),
2388 DRM_IOCTL_DEF_DRV(I915_GEM_EXECBUFFER
, i915_gem_execbuffer
, DRM_AUTH
|DRM_UNLOCKED
),
2389 DRM_IOCTL_DEF_DRV(I915_GEM_EXECBUFFER2
, i915_gem_execbuffer2
, DRM_AUTH
|DRM_UNLOCKED
),
2390 DRM_IOCTL_DEF_DRV(I915_GEM_PIN
, i915_gem_pin_ioctl
, DRM_AUTH
|DRM_ROOT_ONLY
|DRM_UNLOCKED
),
2391 DRM_IOCTL_DEF_DRV(I915_GEM_UNPIN
, i915_gem_unpin_ioctl
, DRM_AUTH
|DRM_ROOT_ONLY
|DRM_UNLOCKED
),
2392 DRM_IOCTL_DEF_DRV(I915_GEM_BUSY
, i915_gem_busy_ioctl
, DRM_AUTH
|DRM_UNLOCKED
),
2393 DRM_IOCTL_DEF_DRV(I915_GEM_THROTTLE
, i915_gem_throttle_ioctl
, DRM_AUTH
|DRM_UNLOCKED
),
2394 DRM_IOCTL_DEF_DRV(I915_GEM_ENTERVT
, i915_gem_entervt_ioctl
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
|DRM_UNLOCKED
),
2395 DRM_IOCTL_DEF_DRV(I915_GEM_LEAVEVT
, i915_gem_leavevt_ioctl
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
|DRM_UNLOCKED
),
2396 DRM_IOCTL_DEF_DRV(I915_GEM_CREATE
, i915_gem_create_ioctl
, DRM_UNLOCKED
),
2397 DRM_IOCTL_DEF_DRV(I915_GEM_PREAD
, i915_gem_pread_ioctl
, DRM_UNLOCKED
),
2398 DRM_IOCTL_DEF_DRV(I915_GEM_PWRITE
, i915_gem_pwrite_ioctl
, DRM_UNLOCKED
),
2399 DRM_IOCTL_DEF_DRV(I915_GEM_MMAP
, i915_gem_mmap_ioctl
, DRM_UNLOCKED
),
2400 DRM_IOCTL_DEF_DRV(I915_GEM_MMAP_GTT
, i915_gem_mmap_gtt_ioctl
, DRM_UNLOCKED
),
2401 DRM_IOCTL_DEF_DRV(I915_GEM_SET_DOMAIN
, i915_gem_set_domain_ioctl
, DRM_UNLOCKED
),
2402 DRM_IOCTL_DEF_DRV(I915_GEM_SW_FINISH
, i915_gem_sw_finish_ioctl
, DRM_UNLOCKED
),
2403 DRM_IOCTL_DEF_DRV(I915_GEM_SET_TILING
, i915_gem_set_tiling
, DRM_UNLOCKED
),
2404 DRM_IOCTL_DEF_DRV(I915_GEM_GET_TILING
, i915_gem_get_tiling
, DRM_UNLOCKED
),
2405 DRM_IOCTL_DEF_DRV(I915_GEM_GET_APERTURE
, i915_gem_get_aperture_ioctl
, DRM_UNLOCKED
),
2406 DRM_IOCTL_DEF_DRV(I915_GET_PIPE_FROM_CRTC_ID
, intel_get_pipe_from_crtc_id
, DRM_UNLOCKED
),
2407 DRM_IOCTL_DEF_DRV(I915_GEM_MADVISE
, i915_gem_madvise_ioctl
, DRM_UNLOCKED
),
2408 DRM_IOCTL_DEF_DRV(I915_OVERLAY_PUT_IMAGE
, intel_overlay_put_image
, DRM_MASTER
|DRM_CONTROL_ALLOW
|DRM_UNLOCKED
),
2409 DRM_IOCTL_DEF_DRV(I915_OVERLAY_ATTRS
, intel_overlay_attrs
, DRM_MASTER
|DRM_CONTROL_ALLOW
|DRM_UNLOCKED
),
2412 int i915_max_ioctl
= DRM_ARRAY_SIZE(i915_ioctls
);
2415 * Determine if the device really is AGP or not.
2417 * All Intel graphics chipsets are treated as AGP, even if they are really
2420 * \param dev The device to be tested.
2423 * A value of 1 is always retured to indictate every i9x5 is AGP.
2425 int i915_driver_device_is_agp(struct drm_device
* dev
)