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.
34 /* Really want an OS-independent resettable timer. Would like to have
35 * this loop run for (eg) 3 sec, but have the timer reset every time
36 * the head pointer changes, so that EBUSY only happens if the ring
37 * actually stalls for (eg) 3 seconds.
39 int i915_wait_ring(struct drm_device
* dev
, int n
, const char *caller
)
41 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
42 drm_i915_ring_buffer_t
*ring
= &(dev_priv
->ring
);
43 u32 acthd_reg
= IS_I965G(dev
) ? ACTHD_I965
: ACTHD
;
44 u32 last_acthd
= I915_READ(acthd_reg
);
46 u32 last_head
= I915_READ(PRB0_HEAD
) & HEAD_ADDR
;
49 for (i
= 0; i
< 100000; i
++) {
50 ring
->head
= I915_READ(PRB0_HEAD
) & HEAD_ADDR
;
51 acthd
= I915_READ(acthd_reg
);
52 ring
->space
= ring
->head
- (ring
->tail
+ 8);
54 ring
->space
+= ring
->Size
;
58 if (dev_priv
->sarea_priv
)
59 dev_priv
->sarea_priv
->perf_boxes
|= I915_BOX_WAIT
;
61 if (ring
->head
!= last_head
)
63 if (acthd
!= last_acthd
)
66 last_head
= ring
->head
;
68 msleep_interruptible(10);
76 * Sets up the hardware status page for devices that need a physical address
79 static int i915_init_phys_hws(struct drm_device
*dev
)
81 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
82 /* Program Hardware Status Page */
83 dev_priv
->status_page_dmah
=
84 drm_pci_alloc(dev
, PAGE_SIZE
, PAGE_SIZE
, 0xffffffff);
86 if (!dev_priv
->status_page_dmah
) {
87 DRM_ERROR("Can not allocate hardware status page\n");
90 dev_priv
->hw_status_page
= dev_priv
->status_page_dmah
->vaddr
;
91 dev_priv
->dma_status_page
= dev_priv
->status_page_dmah
->busaddr
;
93 memset(dev_priv
->hw_status_page
, 0, PAGE_SIZE
);
95 I915_WRITE(HWS_PGA
, dev_priv
->dma_status_page
);
96 DRM_DEBUG("Enabled hardware status page\n");
101 * Frees the hardware status page, whether it's a physical address or a virtual
102 * address set up by the X Server.
104 static void i915_free_hws(struct drm_device
*dev
)
106 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
107 if (dev_priv
->status_page_dmah
) {
108 drm_pci_free(dev
, dev_priv
->status_page_dmah
);
109 dev_priv
->status_page_dmah
= NULL
;
112 if (dev_priv
->status_gfx_addr
) {
113 dev_priv
->status_gfx_addr
= 0;
114 drm_core_ioremapfree(&dev_priv
->hws_map
, dev
);
117 /* Need to rewrite hardware status page */
118 I915_WRITE(HWS_PGA
, 0x1ffff000);
121 void i915_kernel_lost_context(struct drm_device
* dev
)
123 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
124 drm_i915_ring_buffer_t
*ring
= &(dev_priv
->ring
);
126 ring
->head
= I915_READ(PRB0_HEAD
) & HEAD_ADDR
;
127 ring
->tail
= I915_READ(PRB0_TAIL
) & TAIL_ADDR
;
128 ring
->space
= ring
->head
- (ring
->tail
+ 8);
130 ring
->space
+= ring
->Size
;
132 if (ring
->head
== ring
->tail
&& dev_priv
->sarea_priv
)
133 dev_priv
->sarea_priv
->perf_boxes
|= I915_BOX_RING_EMPTY
;
136 static int i915_dma_cleanup(struct drm_device
* dev
)
138 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
139 /* Make sure interrupts are disabled here because the uninstall ioctl
140 * may not have been called from userspace and after dev_private
141 * is freed, it's too late.
143 if (dev
->irq_enabled
)
144 drm_irq_uninstall(dev
);
146 if (dev_priv
->ring
.virtual_start
) {
147 drm_core_ioremapfree(&dev_priv
->ring
.map
, dev
);
148 dev_priv
->ring
.virtual_start
= NULL
;
149 dev_priv
->ring
.map
.handle
= NULL
;
150 dev_priv
->ring
.map
.size
= 0;
153 /* Clear the HWS virtual address at teardown */
154 if (I915_NEED_GFX_HWS(dev
))
160 static int i915_initialize(struct drm_device
* dev
, drm_i915_init_t
* init
)
162 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
164 dev_priv
->sarea
= drm_getsarea(dev
);
165 if (!dev_priv
->sarea
) {
166 DRM_ERROR("can not find sarea!\n");
167 i915_dma_cleanup(dev
);
171 dev_priv
->sarea_priv
= (drm_i915_sarea_t
*)
172 ((u8
*) dev_priv
->sarea
->handle
+ init
->sarea_priv_offset
);
174 if (init
->ring_size
!= 0) {
175 if (dev_priv
->ring
.ring_obj
!= NULL
) {
176 i915_dma_cleanup(dev
);
177 DRM_ERROR("Client tried to initialize ringbuffer in "
182 dev_priv
->ring
.Size
= init
->ring_size
;
183 dev_priv
->ring
.tail_mask
= dev_priv
->ring
.Size
- 1;
185 dev_priv
->ring
.map
.offset
= init
->ring_start
;
186 dev_priv
->ring
.map
.size
= init
->ring_size
;
187 dev_priv
->ring
.map
.type
= 0;
188 dev_priv
->ring
.map
.flags
= 0;
189 dev_priv
->ring
.map
.mtrr
= 0;
191 drm_core_ioremap(&dev_priv
->ring
.map
, dev
);
193 if (dev_priv
->ring
.map
.handle
== NULL
) {
194 i915_dma_cleanup(dev
);
195 DRM_ERROR("can not ioremap virtual address for"
201 dev_priv
->ring
.virtual_start
= dev_priv
->ring
.map
.handle
;
203 dev_priv
->cpp
= init
->cpp
;
204 dev_priv
->back_offset
= init
->back_offset
;
205 dev_priv
->front_offset
= init
->front_offset
;
206 dev_priv
->current_page
= 0;
207 dev_priv
->sarea_priv
->pf_current_page
= dev_priv
->current_page
;
209 /* Allow hardware batchbuffers unless told otherwise.
211 dev_priv
->allow_batchbuffer
= 1;
216 static int i915_dma_resume(struct drm_device
* dev
)
218 drm_i915_private_t
*dev_priv
= (drm_i915_private_t
*) dev
->dev_private
;
220 DRM_DEBUG("%s\n", __func__
);
222 if (!dev_priv
->sarea
) {
223 DRM_ERROR("can not find sarea!\n");
227 if (dev_priv
->ring
.map
.handle
== NULL
) {
228 DRM_ERROR("can not ioremap virtual address for"
233 /* Program Hardware Status Page */
234 if (!dev_priv
->hw_status_page
) {
235 DRM_ERROR("Can not find hardware status page\n");
238 DRM_DEBUG("hw status page @ %p\n", dev_priv
->hw_status_page
);
240 if (dev_priv
->status_gfx_addr
!= 0)
241 I915_WRITE(HWS_PGA
, dev_priv
->status_gfx_addr
);
243 I915_WRITE(HWS_PGA
, dev_priv
->dma_status_page
);
244 DRM_DEBUG("Enabled hardware status page\n");
249 static int i915_dma_init(struct drm_device
*dev
, void *data
,
250 struct drm_file
*file_priv
)
252 drm_i915_init_t
*init
= data
;
255 switch (init
->func
) {
257 retcode
= i915_initialize(dev
, init
);
259 case I915_CLEANUP_DMA
:
260 retcode
= i915_dma_cleanup(dev
);
262 case I915_RESUME_DMA
:
263 retcode
= i915_dma_resume(dev
);
273 /* Implement basically the same security restrictions as hardware does
274 * for MI_BATCH_NON_SECURE. These can be made stricter at any time.
276 * Most of the calculations below involve calculating the size of a
277 * particular instruction. It's important to get the size right as
278 * that tells us where the next instruction to check is. Any illegal
279 * instruction detected will be given a size of zero, which is a
280 * signal to abort the rest of the buffer.
282 static int do_validate_cmd(int cmd
)
284 switch (((cmd
>> 29) & 0x7)) {
286 switch ((cmd
>> 23) & 0x3f) {
288 return 1; /* MI_NOOP */
290 return 1; /* MI_FLUSH */
292 return 0; /* disallow everything else */
296 return 0; /* reserved */
298 return (cmd
& 0xff) + 2; /* 2d commands */
300 if (((cmd
>> 24) & 0x1f) <= 0x18)
303 switch ((cmd
>> 24) & 0x1f) {
307 switch ((cmd
>> 16) & 0xff) {
309 return (cmd
& 0x1f) + 2;
311 return (cmd
& 0xf) + 2;
313 return (cmd
& 0xffff) + 2;
317 return (cmd
& 0xffff) + 1;
321 if ((cmd
& (1 << 23)) == 0) /* inline vertices */
322 return (cmd
& 0x1ffff) + 2;
323 else if (cmd
& (1 << 17)) /* indirect random */
324 if ((cmd
& 0xffff) == 0)
325 return 0; /* unknown length, too hard */
327 return (((cmd
& 0xffff) + 1) / 2) + 1;
329 return 2; /* indirect sequential */
340 static int validate_cmd(int cmd
)
342 int ret
= do_validate_cmd(cmd
);
344 /* printk("validate_cmd( %x ): %d\n", cmd, ret); */
349 static int i915_emit_cmds(struct drm_device
* dev
, int __user
* buffer
, int dwords
)
351 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
355 if ((dwords
+1) * sizeof(int) >= dev_priv
->ring
.Size
- 8)
358 BEGIN_LP_RING((dwords
+1)&~1);
360 for (i
= 0; i
< dwords
;) {
363 if (DRM_COPY_FROM_USER_UNCHECKED(&cmd
, &buffer
[i
], sizeof(cmd
)))
366 if ((sz
= validate_cmd(cmd
)) == 0 || i
+ sz
> dwords
)
372 if (DRM_COPY_FROM_USER_UNCHECKED(&cmd
, &buffer
[i
],
389 i915_emit_box(struct drm_device
*dev
,
390 struct drm_clip_rect __user
*boxes
,
391 int i
, int DR1
, int DR4
)
393 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
394 struct drm_clip_rect box
;
397 if (DRM_COPY_FROM_USER_UNCHECKED(&box
, &boxes
[i
], sizeof(box
))) {
401 if (box
.y2
<= box
.y1
|| box
.x2
<= box
.x1
|| box
.y2
<= 0 || box
.x2
<= 0) {
402 DRM_ERROR("Bad box %d,%d..%d,%d\n",
403 box
.x1
, box
.y1
, box
.x2
, box
.y2
);
409 OUT_RING(GFX_OP_DRAWRECT_INFO_I965
);
410 OUT_RING((box
.x1
& 0xffff) | (box
.y1
<< 16));
411 OUT_RING(((box
.x2
- 1) & 0xffff) | ((box
.y2
- 1) << 16));
416 OUT_RING(GFX_OP_DRAWRECT_INFO
);
418 OUT_RING((box
.x1
& 0xffff) | (box
.y1
<< 16));
419 OUT_RING(((box
.x2
- 1) & 0xffff) | ((box
.y2
- 1) << 16));
428 /* XXX: Emitting the counter should really be moved to part of the IRQ
429 * emit. For now, do it in both places:
432 static void i915_emit_breadcrumb(struct drm_device
*dev
)
434 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
438 if (dev_priv
->counter
> 0x7FFFFFFFUL
)
439 dev_priv
->counter
= 0;
440 if (dev_priv
->sarea_priv
)
441 dev_priv
->sarea_priv
->last_enqueue
= dev_priv
->counter
;
444 OUT_RING(MI_STORE_DWORD_INDEX
);
445 OUT_RING(5 << MI_STORE_DWORD_INDEX_SHIFT
);
446 OUT_RING(dev_priv
->counter
);
451 static int i915_dispatch_cmdbuffer(struct drm_device
* dev
,
452 drm_i915_cmdbuffer_t
* cmd
)
454 int nbox
= cmd
->num_cliprects
;
455 int i
= 0, count
, ret
;
458 DRM_ERROR("alignment");
462 i915_kernel_lost_context(dev
);
464 count
= nbox
? nbox
: 1;
466 for (i
= 0; i
< count
; i
++) {
468 ret
= i915_emit_box(dev
, cmd
->cliprects
, i
,
474 ret
= i915_emit_cmds(dev
, (int __user
*)cmd
->buf
, cmd
->sz
/ 4);
479 i915_emit_breadcrumb(dev
);
483 static int i915_dispatch_batchbuffer(struct drm_device
* dev
,
484 drm_i915_batchbuffer_t
* batch
)
486 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
487 struct drm_clip_rect __user
*boxes
= batch
->cliprects
;
488 int nbox
= batch
->num_cliprects
;
492 if ((batch
->start
| batch
->used
) & 0x7) {
493 DRM_ERROR("alignment");
497 i915_kernel_lost_context(dev
);
499 count
= nbox
? nbox
: 1;
501 for (i
= 0; i
< count
; i
++) {
503 int ret
= i915_emit_box(dev
, boxes
, i
,
504 batch
->DR1
, batch
->DR4
);
509 if (!IS_I830(dev
) && !IS_845G(dev
)) {
512 OUT_RING(MI_BATCH_BUFFER_START
| (2 << 6) | MI_BATCH_NON_SECURE_I965
);
513 OUT_RING(batch
->start
);
515 OUT_RING(MI_BATCH_BUFFER_START
| (2 << 6));
516 OUT_RING(batch
->start
| MI_BATCH_NON_SECURE
);
521 OUT_RING(MI_BATCH_BUFFER
);
522 OUT_RING(batch
->start
| MI_BATCH_NON_SECURE
);
523 OUT_RING(batch
->start
+ batch
->used
- 4);
529 i915_emit_breadcrumb(dev
);
534 static int i915_dispatch_flip(struct drm_device
* dev
)
536 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
539 if (!dev_priv
->sarea_priv
)
542 DRM_DEBUG("%s: page=%d pfCurrentPage=%d\n",
544 dev_priv
->current_page
,
545 dev_priv
->sarea_priv
->pf_current_page
);
547 i915_kernel_lost_context(dev
);
550 OUT_RING(MI_FLUSH
| MI_READ_FLUSH
);
555 OUT_RING(CMD_OP_DISPLAYBUFFER_INFO
| ASYNC_FLIP
);
557 if (dev_priv
->current_page
== 0) {
558 OUT_RING(dev_priv
->back_offset
);
559 dev_priv
->current_page
= 1;
561 OUT_RING(dev_priv
->front_offset
);
562 dev_priv
->current_page
= 0;
568 OUT_RING(MI_WAIT_FOR_EVENT
| MI_WAIT_FOR_PLANE_A_FLIP
);
572 dev_priv
->sarea_priv
->last_enqueue
= dev_priv
->counter
++;
575 OUT_RING(MI_STORE_DWORD_INDEX
);
576 OUT_RING(5 << MI_STORE_DWORD_INDEX_SHIFT
);
577 OUT_RING(dev_priv
->counter
);
581 dev_priv
->sarea_priv
->pf_current_page
= dev_priv
->current_page
;
585 static int i915_quiescent(struct drm_device
* dev
)
587 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
589 i915_kernel_lost_context(dev
);
590 return i915_wait_ring(dev
, dev_priv
->ring
.Size
- 8, __func__
);
593 static int i915_flush_ioctl(struct drm_device
*dev
, void *data
,
594 struct drm_file
*file_priv
)
598 RING_LOCK_TEST_WITH_RETURN(dev
, file_priv
);
600 mutex_lock(&dev
->struct_mutex
);
601 ret
= i915_quiescent(dev
);
602 mutex_unlock(&dev
->struct_mutex
);
607 static int i915_batchbuffer(struct drm_device
*dev
, void *data
,
608 struct drm_file
*file_priv
)
610 drm_i915_private_t
*dev_priv
= (drm_i915_private_t
*) dev
->dev_private
;
611 u32
*hw_status
= dev_priv
->hw_status_page
;
612 drm_i915_sarea_t
*sarea_priv
= (drm_i915_sarea_t
*)
613 dev_priv
->sarea_priv
;
614 drm_i915_batchbuffer_t
*batch
= data
;
617 if (!dev_priv
->allow_batchbuffer
) {
618 DRM_ERROR("Batchbuffer ioctl disabled\n");
622 DRM_DEBUG("i915 batchbuffer, start %x used %d cliprects %d\n",
623 batch
->start
, batch
->used
, batch
->num_cliprects
);
625 RING_LOCK_TEST_WITH_RETURN(dev
, file_priv
);
627 if (batch
->num_cliprects
&& DRM_VERIFYAREA_READ(batch
->cliprects
,
628 batch
->num_cliprects
*
629 sizeof(struct drm_clip_rect
)))
632 mutex_lock(&dev
->struct_mutex
);
633 ret
= i915_dispatch_batchbuffer(dev
, batch
);
634 mutex_unlock(&dev
->struct_mutex
);
637 sarea_priv
->last_dispatch
= (int)hw_status
[5];
641 static int i915_cmdbuffer(struct drm_device
*dev
, void *data
,
642 struct drm_file
*file_priv
)
644 drm_i915_private_t
*dev_priv
= (drm_i915_private_t
*) dev
->dev_private
;
645 u32
*hw_status
= dev_priv
->hw_status_page
;
646 drm_i915_sarea_t
*sarea_priv
= (drm_i915_sarea_t
*)
647 dev_priv
->sarea_priv
;
648 drm_i915_cmdbuffer_t
*cmdbuf
= data
;
651 DRM_DEBUG("i915 cmdbuffer, buf %p sz %d cliprects %d\n",
652 cmdbuf
->buf
, cmdbuf
->sz
, cmdbuf
->num_cliprects
);
654 RING_LOCK_TEST_WITH_RETURN(dev
, file_priv
);
656 if (cmdbuf
->num_cliprects
&&
657 DRM_VERIFYAREA_READ(cmdbuf
->cliprects
,
658 cmdbuf
->num_cliprects
*
659 sizeof(struct drm_clip_rect
))) {
660 DRM_ERROR("Fault accessing cliprects\n");
664 mutex_lock(&dev
->struct_mutex
);
665 ret
= i915_dispatch_cmdbuffer(dev
, cmdbuf
);
666 mutex_unlock(&dev
->struct_mutex
);
668 DRM_ERROR("i915_dispatch_cmdbuffer failed\n");
673 sarea_priv
->last_dispatch
= (int)hw_status
[5];
677 static int i915_flip_bufs(struct drm_device
*dev
, void *data
,
678 struct drm_file
*file_priv
)
682 DRM_DEBUG("%s\n", __func__
);
684 RING_LOCK_TEST_WITH_RETURN(dev
, file_priv
);
686 mutex_lock(&dev
->struct_mutex
);
687 ret
= i915_dispatch_flip(dev
);
688 mutex_unlock(&dev
->struct_mutex
);
693 static int i915_getparam(struct drm_device
*dev
, void *data
,
694 struct drm_file
*file_priv
)
696 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
697 drm_i915_getparam_t
*param
= data
;
701 DRM_ERROR("called with no initialization\n");
705 switch (param
->param
) {
706 case I915_PARAM_IRQ_ACTIVE
:
707 value
= dev
->pdev
->irq
? 1 : 0;
709 case I915_PARAM_ALLOW_BATCHBUFFER
:
710 value
= dev_priv
->allow_batchbuffer
? 1 : 0;
712 case I915_PARAM_LAST_DISPATCH
:
713 value
= READ_BREADCRUMB(dev_priv
);
715 case I915_PARAM_CHIPSET_ID
:
716 value
= dev
->pci_device
;
718 case I915_PARAM_HAS_GEM
:
722 DRM_ERROR("Unknown parameter %d\n", param
->param
);
726 if (DRM_COPY_TO_USER(param
->value
, &value
, sizeof(int))) {
727 DRM_ERROR("DRM_COPY_TO_USER failed\n");
734 static int i915_setparam(struct drm_device
*dev
, void *data
,
735 struct drm_file
*file_priv
)
737 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
738 drm_i915_setparam_t
*param
= data
;
741 DRM_ERROR("called with no initialization\n");
745 switch (param
->param
) {
746 case I915_SETPARAM_USE_MI_BATCHBUFFER_START
:
748 case I915_SETPARAM_TEX_LRU_LOG_GRANULARITY
:
749 dev_priv
->tex_lru_log_granularity
= param
->value
;
751 case I915_SETPARAM_ALLOW_BATCHBUFFER
:
752 dev_priv
->allow_batchbuffer
= param
->value
;
755 DRM_ERROR("unknown parameter %d\n", param
->param
);
762 static int i915_set_status_page(struct drm_device
*dev
, void *data
,
763 struct drm_file
*file_priv
)
765 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
766 drm_i915_hws_addr_t
*hws
= data
;
768 if (!I915_NEED_GFX_HWS(dev
))
772 DRM_ERROR("called with no initialization\n");
776 printk(KERN_DEBUG
"set status page addr 0x%08x\n", (u32
)hws
->addr
);
778 dev_priv
->status_gfx_addr
= hws
->addr
& (0x1ffff<<12);
780 dev_priv
->hws_map
.offset
= dev
->agp
->base
+ hws
->addr
;
781 dev_priv
->hws_map
.size
= 4*1024;
782 dev_priv
->hws_map
.type
= 0;
783 dev_priv
->hws_map
.flags
= 0;
784 dev_priv
->hws_map
.mtrr
= 0;
786 drm_core_ioremap(&dev_priv
->hws_map
, dev
);
787 if (dev_priv
->hws_map
.handle
== NULL
) {
788 i915_dma_cleanup(dev
);
789 dev_priv
->status_gfx_addr
= 0;
790 DRM_ERROR("can not ioremap virtual address for"
791 " G33 hw status page\n");
794 dev_priv
->hw_status_page
= dev_priv
->hws_map
.handle
;
796 memset(dev_priv
->hw_status_page
, 0, PAGE_SIZE
);
797 I915_WRITE(HWS_PGA
, dev_priv
->status_gfx_addr
);
798 DRM_DEBUG("load hws HWS_PGA with gfx mem 0x%x\n",
799 dev_priv
->status_gfx_addr
);
800 DRM_DEBUG("load hws at %p\n", dev_priv
->hw_status_page
);
804 int i915_driver_load(struct drm_device
*dev
, unsigned long flags
)
806 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
807 unsigned long base
, size
;
808 int ret
= 0, mmio_bar
= IS_I9XX(dev
) ? 0 : 1;
810 /* i915 has 4 more counters */
812 dev
->types
[6] = _DRM_STAT_IRQ
;
813 dev
->types
[7] = _DRM_STAT_PRIMARY
;
814 dev
->types
[8] = _DRM_STAT_SECONDARY
;
815 dev
->types
[9] = _DRM_STAT_DMA
;
817 dev_priv
= drm_alloc(sizeof(drm_i915_private_t
), DRM_MEM_DRIVER
);
818 if (dev_priv
== NULL
)
821 memset(dev_priv
, 0, sizeof(drm_i915_private_t
));
823 dev
->dev_private
= (void *)dev_priv
;
826 /* Add register map (needed for suspend/resume) */
827 base
= drm_get_resource_start(dev
, mmio_bar
);
828 size
= drm_get_resource_len(dev
, mmio_bar
);
830 dev_priv
->regs
= ioremap(base
, size
);
835 if (!I915_NEED_GFX_HWS(dev
)) {
836 ret
= i915_init_phys_hws(dev
);
841 /* On the 945G/GM, the chipset reports the MSI capability on the
842 * integrated graphics even though the support isn't actually there
843 * according to the published specs. It doesn't appear to function
844 * correctly in testing on 945G.
845 * This may be a side effect of MSI having been made available for PEG
846 * and the registers being closely associated.
848 * According to chipset errata, on the 965GM, MSI interrupts may
851 if (!IS_I945G(dev
) && !IS_I945GM(dev
) && !IS_I965GM(dev
))
852 if (pci_enable_msi(dev
->pdev
))
853 DRM_ERROR("failed to enable MSI\n");
855 intel_opregion_init(dev
);
857 spin_lock_init(&dev_priv
->user_irq_lock
);
862 int i915_driver_unload(struct drm_device
*dev
)
864 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
866 if (dev
->pdev
->msi_enabled
)
867 pci_disable_msi(dev
->pdev
);
871 if (dev_priv
->regs
!= NULL
)
872 iounmap(dev_priv
->regs
);
874 intel_opregion_free(dev
);
876 drm_free(dev
->dev_private
, sizeof(drm_i915_private_t
),
882 int i915_driver_open(struct drm_device
*dev
, struct drm_file
*file_priv
)
884 struct drm_i915_file_private
*i915_file_priv
;
887 i915_file_priv
= (struct drm_i915_file_private
*)
888 drm_alloc(sizeof(*i915_file_priv
), DRM_MEM_FILES
);
893 file_priv
->driver_priv
= i915_file_priv
;
895 i915_file_priv
->mm
.last_gem_seqno
= 0;
896 i915_file_priv
->mm
.last_gem_throttle_seqno
= 0;
901 void i915_driver_lastclose(struct drm_device
* dev
)
903 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
908 i915_gem_lastclose(dev
);
910 if (dev_priv
->agp_heap
)
911 i915_mem_takedown(&(dev_priv
->agp_heap
));
913 i915_dma_cleanup(dev
);
916 void i915_driver_preclose(struct drm_device
* dev
, struct drm_file
*file_priv
)
918 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
919 i915_mem_release(dev
, file_priv
, dev_priv
->agp_heap
);
922 void i915_driver_postclose(struct drm_device
*dev
, struct drm_file
*file_priv
)
924 struct drm_i915_file_private
*i915_file_priv
= file_priv
->driver_priv
;
926 drm_free(i915_file_priv
, sizeof(*i915_file_priv
), DRM_MEM_FILES
);
929 struct drm_ioctl_desc i915_ioctls
[] = {
930 DRM_IOCTL_DEF(DRM_I915_INIT
, i915_dma_init
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
931 DRM_IOCTL_DEF(DRM_I915_FLUSH
, i915_flush_ioctl
, DRM_AUTH
),
932 DRM_IOCTL_DEF(DRM_I915_FLIP
, i915_flip_bufs
, DRM_AUTH
),
933 DRM_IOCTL_DEF(DRM_I915_BATCHBUFFER
, i915_batchbuffer
, DRM_AUTH
),
934 DRM_IOCTL_DEF(DRM_I915_IRQ_EMIT
, i915_irq_emit
, DRM_AUTH
),
935 DRM_IOCTL_DEF(DRM_I915_IRQ_WAIT
, i915_irq_wait
, DRM_AUTH
),
936 DRM_IOCTL_DEF(DRM_I915_GETPARAM
, i915_getparam
, DRM_AUTH
),
937 DRM_IOCTL_DEF(DRM_I915_SETPARAM
, i915_setparam
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
938 DRM_IOCTL_DEF(DRM_I915_ALLOC
, i915_mem_alloc
, DRM_AUTH
),
939 DRM_IOCTL_DEF(DRM_I915_FREE
, i915_mem_free
, DRM_AUTH
),
940 DRM_IOCTL_DEF(DRM_I915_INIT_HEAP
, i915_mem_init_heap
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
941 DRM_IOCTL_DEF(DRM_I915_CMDBUFFER
, i915_cmdbuffer
, DRM_AUTH
),
942 DRM_IOCTL_DEF(DRM_I915_DESTROY_HEAP
, i915_mem_destroy_heap
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
943 DRM_IOCTL_DEF(DRM_I915_SET_VBLANK_PIPE
, i915_vblank_pipe_set
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
944 DRM_IOCTL_DEF(DRM_I915_GET_VBLANK_PIPE
, i915_vblank_pipe_get
, DRM_AUTH
),
945 DRM_IOCTL_DEF(DRM_I915_VBLANK_SWAP
, i915_vblank_swap
, DRM_AUTH
),
946 DRM_IOCTL_DEF(DRM_I915_HWS_ADDR
, i915_set_status_page
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
947 DRM_IOCTL_DEF(DRM_I915_GEM_INIT
, i915_gem_init_ioctl
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
948 DRM_IOCTL_DEF(DRM_I915_GEM_EXECBUFFER
, i915_gem_execbuffer
, DRM_AUTH
),
949 DRM_IOCTL_DEF(DRM_I915_GEM_PIN
, i915_gem_pin_ioctl
, DRM_AUTH
|DRM_ROOT_ONLY
),
950 DRM_IOCTL_DEF(DRM_I915_GEM_UNPIN
, i915_gem_unpin_ioctl
, DRM_AUTH
|DRM_ROOT_ONLY
),
951 DRM_IOCTL_DEF(DRM_I915_GEM_BUSY
, i915_gem_busy_ioctl
, DRM_AUTH
),
952 DRM_IOCTL_DEF(DRM_I915_GEM_THROTTLE
, i915_gem_throttle_ioctl
, DRM_AUTH
),
953 DRM_IOCTL_DEF(DRM_I915_GEM_ENTERVT
, i915_gem_entervt_ioctl
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
954 DRM_IOCTL_DEF(DRM_I915_GEM_LEAVEVT
, i915_gem_leavevt_ioctl
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
),
955 DRM_IOCTL_DEF(DRM_I915_GEM_CREATE
, i915_gem_create_ioctl
, 0),
956 DRM_IOCTL_DEF(DRM_I915_GEM_PREAD
, i915_gem_pread_ioctl
, 0),
957 DRM_IOCTL_DEF(DRM_I915_GEM_PWRITE
, i915_gem_pwrite_ioctl
, 0),
958 DRM_IOCTL_DEF(DRM_I915_GEM_MMAP
, i915_gem_mmap_ioctl
, 0),
959 DRM_IOCTL_DEF(DRM_I915_GEM_SET_DOMAIN
, i915_gem_set_domain_ioctl
, 0),
960 DRM_IOCTL_DEF(DRM_I915_GEM_SW_FINISH
, i915_gem_sw_finish_ioctl
, 0),
961 DRM_IOCTL_DEF(DRM_I915_GEM_SET_TILING
, i915_gem_set_tiling
, 0),
962 DRM_IOCTL_DEF(DRM_I915_GEM_GET_TILING
, i915_gem_get_tiling
, 0),
965 int i915_max_ioctl
= DRM_ARRAY_SIZE(i915_ioctls
);
968 * Determine if the device really is AGP or not.
970 * All Intel graphics chipsets are treated as AGP, even if they are really
973 * \param dev The device to be tested.
976 * A value of 1 is always retured to indictate every i9x5 is AGP.
978 int i915_driver_device_is_agp(struct drm_device
* dev
)