1 /* i810_dma.c -- DMA support for the i810 -*- linux-c -*-
2 * Created: Mon Dec 13 01:50:01 1999 by jhartmann@precisioninsight.com
4 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
5 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice (including the next
16 * paragraph) shall be included in all copies or substantial portions of the
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
25 * DEALINGS IN THE SOFTWARE.
27 * Authors: Rickard E. (Rik) Faith <faith@valinux.com>
28 * Jeff Hartmann <jhartmann@valinux.com>
29 * Keith Whitwell <keith@tungstengraphics.com>
34 #include <drm/i810_drm.h>
36 #include <linux/interrupt.h> /* For task queue support */
37 #include <linux/delay.h>
38 #include <linux/slab.h>
39 #include <linux/pagemap.h>
41 #define I810_BUF_FREE 2
42 #define I810_BUF_CLIENT 1
43 #define I810_BUF_HARDWARE 0
45 #define I810_BUF_UNMAPPED 0
46 #define I810_BUF_MAPPED 1
48 static struct drm_buf
*i810_freelist_get(struct drm_device
* dev
)
50 struct drm_device_dma
*dma
= dev
->dma
;
54 /* Linear search might not be the best solution */
56 for (i
= 0; i
< dma
->buf_count
; i
++) {
57 struct drm_buf
*buf
= dma
->buflist
[i
];
58 drm_i810_buf_priv_t
*buf_priv
= buf
->dev_private
;
59 /* In use is already a pointer */
60 used
= cmpxchg(buf_priv
->in_use
, I810_BUF_FREE
,
62 if (used
== I810_BUF_FREE
)
68 /* This should only be called if the buffer is not sent to the hardware
69 * yet, the hardware updates in use for us once its on the ring buffer.
72 static int i810_freelist_put(struct drm_device
*dev
, struct drm_buf
*buf
)
74 drm_i810_buf_priv_t
*buf_priv
= buf
->dev_private
;
77 /* In use is already a pointer */
78 used
= cmpxchg(buf_priv
->in_use
, I810_BUF_CLIENT
, I810_BUF_FREE
);
79 if (used
!= I810_BUF_CLIENT
) {
80 DRM_ERROR("Freeing buffer thats not in use : %d\n", buf
->idx
);
87 static int i810_mmap_buffers(struct file
*filp
, struct vm_area_struct
*vma
)
89 struct drm_file
*priv
= filp
->private_data
;
90 struct drm_device
*dev
;
91 drm_i810_private_t
*dev_priv
;
93 drm_i810_buf_priv_t
*buf_priv
;
95 dev
= priv
->minor
->dev
;
96 dev_priv
= dev
->dev_private
;
97 buf
= dev_priv
->mmap_buffer
;
98 buf_priv
= buf
->dev_private
;
100 vma
->vm_flags
|= VM_DONTCOPY
;
102 buf_priv
->currently_mapped
= I810_BUF_MAPPED
;
104 if (io_remap_pfn_range(vma
, vma
->vm_start
,
106 vma
->vm_end
- vma
->vm_start
, vma
->vm_page_prot
))
111 static const struct file_operations i810_buffer_fops
= {
113 .release
= drm_release
,
114 .unlocked_ioctl
= drm_ioctl
,
115 .mmap
= i810_mmap_buffers
,
116 .fasync
= drm_fasync
,
118 .compat_ioctl
= drm_compat_ioctl
,
120 .llseek
= noop_llseek
,
123 static int i810_map_buffer(struct drm_buf
*buf
, struct drm_file
*file_priv
)
125 struct drm_device
*dev
= file_priv
->minor
->dev
;
126 drm_i810_buf_priv_t
*buf_priv
= buf
->dev_private
;
127 drm_i810_private_t
*dev_priv
= dev
->dev_private
;
128 const struct file_operations
*old_fops
;
131 if (buf_priv
->currently_mapped
== I810_BUF_MAPPED
)
134 /* This is all entirely broken */
135 old_fops
= file_priv
->filp
->f_op
;
136 file_priv
->filp
->f_op
= &i810_buffer_fops
;
137 dev_priv
->mmap_buffer
= buf
;
138 buf_priv
->virtual = (void *)vm_mmap(file_priv
->filp
, 0, buf
->total
,
139 PROT_READ
| PROT_WRITE
,
140 MAP_SHARED
, buf
->bus_address
);
141 dev_priv
->mmap_buffer
= NULL
;
142 file_priv
->filp
->f_op
= old_fops
;
143 if (IS_ERR(buf_priv
->virtual)) {
145 DRM_ERROR("mmap error\n");
146 retcode
= PTR_ERR(buf_priv
->virtual);
147 buf_priv
->virtual = NULL
;
153 static int i810_unmap_buffer(struct drm_buf
*buf
)
155 drm_i810_buf_priv_t
*buf_priv
= buf
->dev_private
;
158 if (buf_priv
->currently_mapped
!= I810_BUF_MAPPED
)
161 retcode
= vm_munmap((unsigned long)buf_priv
->virtual,
162 (size_t) buf
->total
);
164 buf_priv
->currently_mapped
= I810_BUF_UNMAPPED
;
165 buf_priv
->virtual = NULL
;
170 static int i810_dma_get_buffer(struct drm_device
*dev
, drm_i810_dma_t
*d
,
171 struct drm_file
*file_priv
)
174 drm_i810_buf_priv_t
*buf_priv
;
177 buf
= i810_freelist_get(dev
);
180 DRM_DEBUG("retcode=%d\n", retcode
);
184 retcode
= i810_map_buffer(buf
, file_priv
);
186 i810_freelist_put(dev
, buf
);
187 DRM_ERROR("mapbuf failed, retcode %d\n", retcode
);
190 buf
->file_priv
= file_priv
;
191 buf_priv
= buf
->dev_private
;
193 d
->request_idx
= buf
->idx
;
194 d
->request_size
= buf
->total
;
195 d
->virtual = buf_priv
->virtual;
200 static int i810_dma_cleanup(struct drm_device
*dev
)
202 struct drm_device_dma
*dma
= dev
->dma
;
204 /* Make sure interrupts are disabled here because the uninstall ioctl
205 * may not have been called from userspace and after dev_private
206 * is freed, it's too late.
208 if (drm_core_check_feature(dev
, DRIVER_HAVE_IRQ
) && dev
->irq_enabled
)
209 drm_irq_uninstall(dev
);
211 if (dev
->dev_private
) {
213 drm_i810_private_t
*dev_priv
=
214 (drm_i810_private_t
*) dev
->dev_private
;
216 if (dev_priv
->ring
.virtual_start
)
217 drm_core_ioremapfree(&dev_priv
->ring
.map
, dev
);
218 if (dev_priv
->hw_status_page
) {
219 pci_free_consistent(dev
->pdev
, PAGE_SIZE
,
220 dev_priv
->hw_status_page
,
221 dev_priv
->dma_status_page
);
223 kfree(dev
->dev_private
);
224 dev
->dev_private
= NULL
;
226 for (i
= 0; i
< dma
->buf_count
; i
++) {
227 struct drm_buf
*buf
= dma
->buflist
[i
];
228 drm_i810_buf_priv_t
*buf_priv
= buf
->dev_private
;
230 if (buf_priv
->kernel_virtual
&& buf
->total
)
231 drm_core_ioremapfree(&buf_priv
->map
, dev
);
237 static int i810_wait_ring(struct drm_device
*dev
, int n
)
239 drm_i810_private_t
*dev_priv
= dev
->dev_private
;
240 drm_i810_ring_buffer_t
*ring
= &(dev_priv
->ring
);
243 unsigned int last_head
= I810_READ(LP_RING
+ RING_HEAD
) & HEAD_ADDR
;
245 end
= jiffies
+ (HZ
* 3);
246 while (ring
->space
< n
) {
247 ring
->head
= I810_READ(LP_RING
+ RING_HEAD
) & HEAD_ADDR
;
248 ring
->space
= ring
->head
- (ring
->tail
+ 8);
250 ring
->space
+= ring
->Size
;
252 if (ring
->head
!= last_head
) {
253 end
= jiffies
+ (HZ
* 3);
254 last_head
= ring
->head
;
258 if (time_before(end
, jiffies
)) {
259 DRM_ERROR("space: %d wanted %d\n", ring
->space
, n
);
260 DRM_ERROR("lockup\n");
270 static void i810_kernel_lost_context(struct drm_device
*dev
)
272 drm_i810_private_t
*dev_priv
= dev
->dev_private
;
273 drm_i810_ring_buffer_t
*ring
= &(dev_priv
->ring
);
275 ring
->head
= I810_READ(LP_RING
+ RING_HEAD
) & HEAD_ADDR
;
276 ring
->tail
= I810_READ(LP_RING
+ RING_TAIL
);
277 ring
->space
= ring
->head
- (ring
->tail
+ 8);
279 ring
->space
+= ring
->Size
;
282 static int i810_freelist_init(struct drm_device
*dev
, drm_i810_private_t
*dev_priv
)
284 struct drm_device_dma
*dma
= dev
->dma
;
286 u32
*hw_status
= (u32
*) (dev_priv
->hw_status_page
+ my_idx
);
289 if (dma
->buf_count
> 1019) {
290 /* Not enough space in the status page for the freelist */
294 for (i
= 0; i
< dma
->buf_count
; i
++) {
295 struct drm_buf
*buf
= dma
->buflist
[i
];
296 drm_i810_buf_priv_t
*buf_priv
= buf
->dev_private
;
298 buf_priv
->in_use
= hw_status
++;
299 buf_priv
->my_use_idx
= my_idx
;
302 *buf_priv
->in_use
= I810_BUF_FREE
;
304 buf_priv
->map
.offset
= buf
->bus_address
;
305 buf_priv
->map
.size
= buf
->total
;
306 buf_priv
->map
.type
= _DRM_AGP
;
307 buf_priv
->map
.flags
= 0;
308 buf_priv
->map
.mtrr
= 0;
310 drm_core_ioremap(&buf_priv
->map
, dev
);
311 buf_priv
->kernel_virtual
= buf_priv
->map
.handle
;
317 static int i810_dma_initialize(struct drm_device
*dev
,
318 drm_i810_private_t
*dev_priv
,
319 drm_i810_init_t
*init
)
321 struct drm_map_list
*r_list
;
322 memset(dev_priv
, 0, sizeof(drm_i810_private_t
));
324 list_for_each_entry(r_list
, &dev
->maplist
, head
) {
326 r_list
->map
->type
== _DRM_SHM
&&
327 r_list
->map
->flags
& _DRM_CONTAINS_LOCK
) {
328 dev_priv
->sarea_map
= r_list
->map
;
332 if (!dev_priv
->sarea_map
) {
333 dev
->dev_private
= (void *)dev_priv
;
334 i810_dma_cleanup(dev
);
335 DRM_ERROR("can not find sarea!\n");
338 dev_priv
->mmio_map
= drm_core_findmap(dev
, init
->mmio_offset
);
339 if (!dev_priv
->mmio_map
) {
340 dev
->dev_private
= (void *)dev_priv
;
341 i810_dma_cleanup(dev
);
342 DRM_ERROR("can not find mmio map!\n");
345 dev
->agp_buffer_token
= init
->buffers_offset
;
346 dev
->agp_buffer_map
= drm_core_findmap(dev
, init
->buffers_offset
);
347 if (!dev
->agp_buffer_map
) {
348 dev
->dev_private
= (void *)dev_priv
;
349 i810_dma_cleanup(dev
);
350 DRM_ERROR("can not find dma buffer map!\n");
354 dev_priv
->sarea_priv
= (drm_i810_sarea_t
*)
355 ((u8
*) dev_priv
->sarea_map
->handle
+ init
->sarea_priv_offset
);
357 dev_priv
->ring
.Start
= init
->ring_start
;
358 dev_priv
->ring
.End
= init
->ring_end
;
359 dev_priv
->ring
.Size
= init
->ring_size
;
361 dev_priv
->ring
.map
.offset
= dev
->agp
->base
+ init
->ring_start
;
362 dev_priv
->ring
.map
.size
= init
->ring_size
;
363 dev_priv
->ring
.map
.type
= _DRM_AGP
;
364 dev_priv
->ring
.map
.flags
= 0;
365 dev_priv
->ring
.map
.mtrr
= 0;
367 drm_core_ioremap(&dev_priv
->ring
.map
, dev
);
369 if (dev_priv
->ring
.map
.handle
== NULL
) {
370 dev
->dev_private
= (void *)dev_priv
;
371 i810_dma_cleanup(dev
);
372 DRM_ERROR("can not ioremap virtual address for"
377 dev_priv
->ring
.virtual_start
= dev_priv
->ring
.map
.handle
;
379 dev_priv
->ring
.tail_mask
= dev_priv
->ring
.Size
- 1;
381 dev_priv
->w
= init
->w
;
382 dev_priv
->h
= init
->h
;
383 dev_priv
->pitch
= init
->pitch
;
384 dev_priv
->back_offset
= init
->back_offset
;
385 dev_priv
->depth_offset
= init
->depth_offset
;
386 dev_priv
->front_offset
= init
->front_offset
;
388 dev_priv
->overlay_offset
= init
->overlay_offset
;
389 dev_priv
->overlay_physical
= init
->overlay_physical
;
391 dev_priv
->front_di1
= init
->front_offset
| init
->pitch_bits
;
392 dev_priv
->back_di1
= init
->back_offset
| init
->pitch_bits
;
393 dev_priv
->zi1
= init
->depth_offset
| init
->pitch_bits
;
395 /* Program Hardware Status Page */
396 dev_priv
->hw_status_page
=
397 pci_alloc_consistent(dev
->pdev
, PAGE_SIZE
,
398 &dev_priv
->dma_status_page
);
399 if (!dev_priv
->hw_status_page
) {
400 dev
->dev_private
= (void *)dev_priv
;
401 i810_dma_cleanup(dev
);
402 DRM_ERROR("Can not allocate hardware status page\n");
405 memset(dev_priv
->hw_status_page
, 0, PAGE_SIZE
);
406 DRM_DEBUG("hw status page @ %p\n", dev_priv
->hw_status_page
);
408 I810_WRITE(0x02080, dev_priv
->dma_status_page
);
409 DRM_DEBUG("Enabled hardware status page\n");
411 /* Now we need to init our freelist */
412 if (i810_freelist_init(dev
, dev_priv
) != 0) {
413 dev
->dev_private
= (void *)dev_priv
;
414 i810_dma_cleanup(dev
);
415 DRM_ERROR("Not enough space in the status page for"
419 dev
->dev_private
= (void *)dev_priv
;
424 static int i810_dma_init(struct drm_device
*dev
, void *data
,
425 struct drm_file
*file_priv
)
427 drm_i810_private_t
*dev_priv
;
428 drm_i810_init_t
*init
= data
;
431 switch (init
->func
) {
432 case I810_INIT_DMA_1_4
:
433 DRM_INFO("Using v1.4 init.\n");
434 dev_priv
= kmalloc(sizeof(drm_i810_private_t
), GFP_KERNEL
);
435 if (dev_priv
== NULL
)
437 retcode
= i810_dma_initialize(dev
, dev_priv
, init
);
440 case I810_CLEANUP_DMA
:
441 DRM_INFO("DMA Cleanup\n");
442 retcode
= i810_dma_cleanup(dev
);
451 /* Most efficient way to verify state for the i810 is as it is
452 * emitted. Non-conformant state is silently dropped.
454 * Use 'volatile' & local var tmp to force the emitted values to be
455 * identical to the verified ones.
457 static void i810EmitContextVerified(struct drm_device
*dev
,
458 volatile unsigned int *code
)
460 drm_i810_private_t
*dev_priv
= dev
->dev_private
;
465 BEGIN_LP_RING(I810_CTX_SETUP_SIZE
);
467 OUT_RING(GFX_OP_COLOR_FACTOR
);
468 OUT_RING(code
[I810_CTXREG_CF1
]);
470 OUT_RING(GFX_OP_STIPPLE
);
471 OUT_RING(code
[I810_CTXREG_ST1
]);
473 for (i
= 4; i
< I810_CTX_SETUP_SIZE
; i
++) {
476 if ((tmp
& (7 << 29)) == (3 << 29) &&
477 (tmp
& (0x1f << 24)) < (0x1d << 24)) {
481 printk("constext state dropped!!!\n");
490 static void i810EmitTexVerified(struct drm_device
*dev
, volatile unsigned int *code
)
492 drm_i810_private_t
*dev_priv
= dev
->dev_private
;
497 BEGIN_LP_RING(I810_TEX_SETUP_SIZE
);
499 OUT_RING(GFX_OP_MAP_INFO
);
500 OUT_RING(code
[I810_TEXREG_MI1
]);
501 OUT_RING(code
[I810_TEXREG_MI2
]);
502 OUT_RING(code
[I810_TEXREG_MI3
]);
504 for (i
= 4; i
< I810_TEX_SETUP_SIZE
; i
++) {
507 if ((tmp
& (7 << 29)) == (3 << 29) &&
508 (tmp
& (0x1f << 24)) < (0x1d << 24)) {
512 printk("texture state dropped!!!\n");
521 /* Need to do some additional checking when setting the dest buffer.
523 static void i810EmitDestVerified(struct drm_device
*dev
,
524 volatile unsigned int *code
)
526 drm_i810_private_t
*dev_priv
= dev
->dev_private
;
530 BEGIN_LP_RING(I810_DEST_SETUP_SIZE
+ 2);
532 tmp
= code
[I810_DESTREG_DI1
];
533 if (tmp
== dev_priv
->front_di1
|| tmp
== dev_priv
->back_di1
) {
534 OUT_RING(CMD_OP_DESTBUFFER_INFO
);
537 DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
538 tmp
, dev_priv
->front_di1
, dev_priv
->back_di1
);
542 OUT_RING(CMD_OP_Z_BUFFER_INFO
);
543 OUT_RING(dev_priv
->zi1
);
545 OUT_RING(GFX_OP_DESTBUFFER_VARS
);
546 OUT_RING(code
[I810_DESTREG_DV1
]);
548 OUT_RING(GFX_OP_DRAWRECT_INFO
);
549 OUT_RING(code
[I810_DESTREG_DR1
]);
550 OUT_RING(code
[I810_DESTREG_DR2
]);
551 OUT_RING(code
[I810_DESTREG_DR3
]);
552 OUT_RING(code
[I810_DESTREG_DR4
]);
558 static void i810EmitState(struct drm_device
*dev
)
560 drm_i810_private_t
*dev_priv
= dev
->dev_private
;
561 drm_i810_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
562 unsigned int dirty
= sarea_priv
->dirty
;
564 DRM_DEBUG("%x\n", dirty
);
566 if (dirty
& I810_UPLOAD_BUFFERS
) {
567 i810EmitDestVerified(dev
, sarea_priv
->BufferState
);
568 sarea_priv
->dirty
&= ~I810_UPLOAD_BUFFERS
;
571 if (dirty
& I810_UPLOAD_CTX
) {
572 i810EmitContextVerified(dev
, sarea_priv
->ContextState
);
573 sarea_priv
->dirty
&= ~I810_UPLOAD_CTX
;
576 if (dirty
& I810_UPLOAD_TEX0
) {
577 i810EmitTexVerified(dev
, sarea_priv
->TexState
[0]);
578 sarea_priv
->dirty
&= ~I810_UPLOAD_TEX0
;
581 if (dirty
& I810_UPLOAD_TEX1
) {
582 i810EmitTexVerified(dev
, sarea_priv
->TexState
[1]);
583 sarea_priv
->dirty
&= ~I810_UPLOAD_TEX1
;
589 static void i810_dma_dispatch_clear(struct drm_device
*dev
, int flags
,
590 unsigned int clear_color
,
591 unsigned int clear_zval
)
593 drm_i810_private_t
*dev_priv
= dev
->dev_private
;
594 drm_i810_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
595 int nbox
= sarea_priv
->nbox
;
596 struct drm_clip_rect
*pbox
= sarea_priv
->boxes
;
597 int pitch
= dev_priv
->pitch
;
602 if (dev_priv
->current_page
== 1) {
603 unsigned int tmp
= flags
;
605 flags
&= ~(I810_FRONT
| I810_BACK
);
606 if (tmp
& I810_FRONT
)
612 i810_kernel_lost_context(dev
);
614 if (nbox
> I810_NR_SAREA_CLIPRECTS
)
615 nbox
= I810_NR_SAREA_CLIPRECTS
;
617 for (i
= 0; i
< nbox
; i
++, pbox
++) {
618 unsigned int x
= pbox
->x1
;
619 unsigned int y
= pbox
->y1
;
620 unsigned int width
= (pbox
->x2
- x
) * cpp
;
621 unsigned int height
= pbox
->y2
- y
;
622 unsigned int start
= y
* pitch
+ x
* cpp
;
624 if (pbox
->x1
> pbox
->x2
||
625 pbox
->y1
> pbox
->y2
||
626 pbox
->x2
> dev_priv
->w
|| pbox
->y2
> dev_priv
->h
)
629 if (flags
& I810_FRONT
) {
631 OUT_RING(BR00_BITBLT_CLIENT
| BR00_OP_COLOR_BLT
| 0x3);
632 OUT_RING(BR13_SOLID_PATTERN
| (0xF0 << 16) | pitch
);
633 OUT_RING((height
<< 16) | width
);
635 OUT_RING(clear_color
);
640 if (flags
& I810_BACK
) {
642 OUT_RING(BR00_BITBLT_CLIENT
| BR00_OP_COLOR_BLT
| 0x3);
643 OUT_RING(BR13_SOLID_PATTERN
| (0xF0 << 16) | pitch
);
644 OUT_RING((height
<< 16) | width
);
645 OUT_RING(dev_priv
->back_offset
+ start
);
646 OUT_RING(clear_color
);
651 if (flags
& I810_DEPTH
) {
653 OUT_RING(BR00_BITBLT_CLIENT
| BR00_OP_COLOR_BLT
| 0x3);
654 OUT_RING(BR13_SOLID_PATTERN
| (0xF0 << 16) | pitch
);
655 OUT_RING((height
<< 16) | width
);
656 OUT_RING(dev_priv
->depth_offset
+ start
);
657 OUT_RING(clear_zval
);
664 static void i810_dma_dispatch_swap(struct drm_device
*dev
)
666 drm_i810_private_t
*dev_priv
= dev
->dev_private
;
667 drm_i810_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
668 int nbox
= sarea_priv
->nbox
;
669 struct drm_clip_rect
*pbox
= sarea_priv
->boxes
;
670 int pitch
= dev_priv
->pitch
;
675 DRM_DEBUG("swapbuffers\n");
677 i810_kernel_lost_context(dev
);
679 if (nbox
> I810_NR_SAREA_CLIPRECTS
)
680 nbox
= I810_NR_SAREA_CLIPRECTS
;
682 for (i
= 0; i
< nbox
; i
++, pbox
++) {
683 unsigned int w
= pbox
->x2
- pbox
->x1
;
684 unsigned int h
= pbox
->y2
- pbox
->y1
;
685 unsigned int dst
= pbox
->x1
* cpp
+ pbox
->y1
* pitch
;
686 unsigned int start
= dst
;
688 if (pbox
->x1
> pbox
->x2
||
689 pbox
->y1
> pbox
->y2
||
690 pbox
->x2
> dev_priv
->w
|| pbox
->y2
> dev_priv
->h
)
694 OUT_RING(BR00_BITBLT_CLIENT
| BR00_OP_SRC_COPY_BLT
| 0x4);
695 OUT_RING(pitch
| (0xCC << 16));
696 OUT_RING((h
<< 16) | (w
* cpp
));
697 if (dev_priv
->current_page
== 0)
698 OUT_RING(dev_priv
->front_offset
+ start
);
700 OUT_RING(dev_priv
->back_offset
+ start
);
702 if (dev_priv
->current_page
== 0)
703 OUT_RING(dev_priv
->back_offset
+ start
);
705 OUT_RING(dev_priv
->front_offset
+ start
);
710 static void i810_dma_dispatch_vertex(struct drm_device
*dev
,
711 struct drm_buf
*buf
, int discard
, int used
)
713 drm_i810_private_t
*dev_priv
= dev
->dev_private
;
714 drm_i810_buf_priv_t
*buf_priv
= buf
->dev_private
;
715 drm_i810_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
716 struct drm_clip_rect
*box
= sarea_priv
->boxes
;
717 int nbox
= sarea_priv
->nbox
;
718 unsigned long address
= (unsigned long)buf
->bus_address
;
719 unsigned long start
= address
- dev
->agp
->base
;
723 i810_kernel_lost_context(dev
);
725 if (nbox
> I810_NR_SAREA_CLIPRECTS
)
726 nbox
= I810_NR_SAREA_CLIPRECTS
;
731 if (sarea_priv
->dirty
)
734 if (buf_priv
->currently_mapped
== I810_BUF_MAPPED
) {
735 unsigned int prim
= (sarea_priv
->vertex_prim
& PR_MASK
);
737 *(u32
*) buf_priv
->kernel_virtual
=
738 ((GFX_OP_PRIMITIVE
| prim
| ((used
/ 4) - 2)));
741 *(u32
*) ((char *) buf_priv
->kernel_virtual
+ used
) = 0;
745 i810_unmap_buffer(buf
);
752 OUT_RING(GFX_OP_SCISSOR
| SC_UPDATE_SCISSOR
|
754 OUT_RING(GFX_OP_SCISSOR_INFO
);
755 OUT_RING(box
[i
].x1
| (box
[i
].y1
<< 16));
756 OUT_RING((box
[i
].x2
-
757 1) | ((box
[i
].y2
- 1) << 16));
762 OUT_RING(CMD_OP_BATCH_BUFFER
);
763 OUT_RING(start
| BB1_PROTECTED
);
764 OUT_RING(start
+ used
- 4);
768 } while (++i
< nbox
);
774 (void)cmpxchg(buf_priv
->in_use
, I810_BUF_CLIENT
,
778 OUT_RING(CMD_STORE_DWORD_IDX
);
780 OUT_RING(dev_priv
->counter
);
781 OUT_RING(CMD_STORE_DWORD_IDX
);
782 OUT_RING(buf_priv
->my_use_idx
);
783 OUT_RING(I810_BUF_FREE
);
784 OUT_RING(CMD_REPORT_HEAD
);
790 static void i810_dma_dispatch_flip(struct drm_device
*dev
)
792 drm_i810_private_t
*dev_priv
= dev
->dev_private
;
793 int pitch
= dev_priv
->pitch
;
796 DRM_DEBUG("page=%d pfCurrentPage=%d\n",
797 dev_priv
->current_page
,
798 dev_priv
->sarea_priv
->pf_current_page
);
800 i810_kernel_lost_context(dev
);
803 OUT_RING(INST_PARSER_CLIENT
| INST_OP_FLUSH
| INST_FLUSH_MAP_CACHE
);
807 BEGIN_LP_RING(I810_DEST_SETUP_SIZE
+ 2);
808 /* On i815 at least ASYNC is buggy */
809 /* pitch<<5 is from 11.2.8 p158,
810 its the pitch / 8 then left shifted 8,
811 so (pitch >> 3) << 8 */
812 OUT_RING(CMD_OP_FRONTBUFFER_INFO
| (pitch
<< 5) /*| ASYNC_FLIP */ );
813 if (dev_priv
->current_page
== 0) {
814 OUT_RING(dev_priv
->back_offset
);
815 dev_priv
->current_page
= 1;
817 OUT_RING(dev_priv
->front_offset
);
818 dev_priv
->current_page
= 0;
824 OUT_RING(CMD_OP_WAIT_FOR_EVENT
| WAIT_FOR_PLANE_A_FLIP
);
828 /* Increment the frame counter. The client-side 3D driver must
829 * throttle the framerate by waiting for this value before
830 * performing the swapbuffer ioctl.
832 dev_priv
->sarea_priv
->pf_current_page
= dev_priv
->current_page
;
836 static void i810_dma_quiescent(struct drm_device
*dev
)
838 drm_i810_private_t
*dev_priv
= dev
->dev_private
;
841 i810_kernel_lost_context(dev
);
844 OUT_RING(INST_PARSER_CLIENT
| INST_OP_FLUSH
| INST_FLUSH_MAP_CACHE
);
845 OUT_RING(CMD_REPORT_HEAD
);
850 i810_wait_ring(dev
, dev_priv
->ring
.Size
- 8);
853 static int i810_flush_queue(struct drm_device
*dev
)
855 drm_i810_private_t
*dev_priv
= dev
->dev_private
;
856 struct drm_device_dma
*dma
= dev
->dma
;
860 i810_kernel_lost_context(dev
);
863 OUT_RING(CMD_REPORT_HEAD
);
867 i810_wait_ring(dev
, dev_priv
->ring
.Size
- 8);
869 for (i
= 0; i
< dma
->buf_count
; i
++) {
870 struct drm_buf
*buf
= dma
->buflist
[i
];
871 drm_i810_buf_priv_t
*buf_priv
= buf
->dev_private
;
873 int used
= cmpxchg(buf_priv
->in_use
, I810_BUF_HARDWARE
,
876 if (used
== I810_BUF_HARDWARE
)
877 DRM_DEBUG("reclaimed from HARDWARE\n");
878 if (used
== I810_BUF_CLIENT
)
879 DRM_DEBUG("still on client\n");
885 /* Must be called with the lock held */
886 void i810_driver_reclaim_buffers(struct drm_device
*dev
,
887 struct drm_file
*file_priv
)
889 struct drm_device_dma
*dma
= dev
->dma
;
894 if (!dev
->dev_private
)
899 i810_flush_queue(dev
);
901 for (i
= 0; i
< dma
->buf_count
; i
++) {
902 struct drm_buf
*buf
= dma
->buflist
[i
];
903 drm_i810_buf_priv_t
*buf_priv
= buf
->dev_private
;
905 if (buf
->file_priv
== file_priv
&& buf_priv
) {
906 int used
= cmpxchg(buf_priv
->in_use
, I810_BUF_CLIENT
,
909 if (used
== I810_BUF_CLIENT
)
910 DRM_DEBUG("reclaimed from client\n");
911 if (buf_priv
->currently_mapped
== I810_BUF_MAPPED
)
912 buf_priv
->currently_mapped
= I810_BUF_UNMAPPED
;
917 static int i810_flush_ioctl(struct drm_device
*dev
, void *data
,
918 struct drm_file
*file_priv
)
920 LOCK_TEST_WITH_RETURN(dev
, file_priv
);
922 i810_flush_queue(dev
);
926 static int i810_dma_vertex(struct drm_device
*dev
, void *data
,
927 struct drm_file
*file_priv
)
929 struct drm_device_dma
*dma
= dev
->dma
;
930 drm_i810_private_t
*dev_priv
= (drm_i810_private_t
*) dev
->dev_private
;
931 u32
*hw_status
= dev_priv
->hw_status_page
;
932 drm_i810_sarea_t
*sarea_priv
= (drm_i810_sarea_t
*)
933 dev_priv
->sarea_priv
;
934 drm_i810_vertex_t
*vertex
= data
;
936 LOCK_TEST_WITH_RETURN(dev
, file_priv
);
938 DRM_DEBUG("idx %d used %d discard %d\n",
939 vertex
->idx
, vertex
->used
, vertex
->discard
);
941 if (vertex
->idx
< 0 || vertex
->idx
> dma
->buf_count
)
944 i810_dma_dispatch_vertex(dev
,
945 dma
->buflist
[vertex
->idx
],
946 vertex
->discard
, vertex
->used
);
948 atomic_add(vertex
->used
, &dev
->counts
[_DRM_STAT_SECONDARY
]);
949 atomic_inc(&dev
->counts
[_DRM_STAT_DMA
]);
950 sarea_priv
->last_enqueue
= dev_priv
->counter
- 1;
951 sarea_priv
->last_dispatch
= (int)hw_status
[5];
956 static int i810_clear_bufs(struct drm_device
*dev
, void *data
,
957 struct drm_file
*file_priv
)
959 drm_i810_clear_t
*clear
= data
;
961 LOCK_TEST_WITH_RETURN(dev
, file_priv
);
963 /* GH: Someone's doing nasty things... */
964 if (!dev
->dev_private
)
967 i810_dma_dispatch_clear(dev
, clear
->flags
,
968 clear
->clear_color
, clear
->clear_depth
);
972 static int i810_swap_bufs(struct drm_device
*dev
, void *data
,
973 struct drm_file
*file_priv
)
977 LOCK_TEST_WITH_RETURN(dev
, file_priv
);
979 i810_dma_dispatch_swap(dev
);
983 static int i810_getage(struct drm_device
*dev
, void *data
,
984 struct drm_file
*file_priv
)
986 drm_i810_private_t
*dev_priv
= (drm_i810_private_t
*) dev
->dev_private
;
987 u32
*hw_status
= dev_priv
->hw_status_page
;
988 drm_i810_sarea_t
*sarea_priv
= (drm_i810_sarea_t
*)
989 dev_priv
->sarea_priv
;
991 sarea_priv
->last_dispatch
= (int)hw_status
[5];
995 static int i810_getbuf(struct drm_device
*dev
, void *data
,
996 struct drm_file
*file_priv
)
999 drm_i810_dma_t
*d
= data
;
1000 drm_i810_private_t
*dev_priv
= (drm_i810_private_t
*) dev
->dev_private
;
1001 u32
*hw_status
= dev_priv
->hw_status_page
;
1002 drm_i810_sarea_t
*sarea_priv
= (drm_i810_sarea_t
*)
1003 dev_priv
->sarea_priv
;
1005 LOCK_TEST_WITH_RETURN(dev
, file_priv
);
1009 retcode
= i810_dma_get_buffer(dev
, d
, file_priv
);
1011 DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
1012 task_pid_nr(current
), retcode
, d
->granted
);
1014 sarea_priv
->last_dispatch
= (int)hw_status
[5];
1019 static int i810_copybuf(struct drm_device
*dev
, void *data
,
1020 struct drm_file
*file_priv
)
1022 /* Never copy - 2.4.x doesn't need it */
1026 static int i810_docopy(struct drm_device
*dev
, void *data
,
1027 struct drm_file
*file_priv
)
1029 /* Never copy - 2.4.x doesn't need it */
1033 static void i810_dma_dispatch_mc(struct drm_device
*dev
, struct drm_buf
*buf
, int used
,
1034 unsigned int last_render
)
1036 drm_i810_private_t
*dev_priv
= dev
->dev_private
;
1037 drm_i810_buf_priv_t
*buf_priv
= buf
->dev_private
;
1038 drm_i810_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
1039 unsigned long address
= (unsigned long)buf
->bus_address
;
1040 unsigned long start
= address
- dev
->agp
->base
;
1044 i810_kernel_lost_context(dev
);
1046 u
= cmpxchg(buf_priv
->in_use
, I810_BUF_CLIENT
, I810_BUF_HARDWARE
);
1047 if (u
!= I810_BUF_CLIENT
)
1048 DRM_DEBUG("MC found buffer that isn't mine!\n");
1050 if (used
> 4 * 1024)
1053 sarea_priv
->dirty
= 0x7f;
1055 DRM_DEBUG("addr 0x%lx, used 0x%x\n", address
, used
);
1057 dev_priv
->counter
++;
1058 DRM_DEBUG("dispatch counter : %ld\n", dev_priv
->counter
);
1059 DRM_DEBUG("start : %lx\n", start
);
1060 DRM_DEBUG("used : %d\n", used
);
1061 DRM_DEBUG("start + used - 4 : %ld\n", start
+ used
- 4);
1063 if (buf_priv
->currently_mapped
== I810_BUF_MAPPED
) {
1065 *(u32
*) ((char *) buf_priv
->virtual + used
) = 0;
1069 i810_unmap_buffer(buf
);
1072 OUT_RING(CMD_OP_BATCH_BUFFER
);
1073 OUT_RING(start
| BB1_PROTECTED
);
1074 OUT_RING(start
+ used
- 4);
1079 OUT_RING(CMD_STORE_DWORD_IDX
);
1080 OUT_RING(buf_priv
->my_use_idx
);
1081 OUT_RING(I810_BUF_FREE
);
1084 OUT_RING(CMD_STORE_DWORD_IDX
);
1086 OUT_RING(last_render
);
1091 static int i810_dma_mc(struct drm_device
*dev
, void *data
,
1092 struct drm_file
*file_priv
)
1094 struct drm_device_dma
*dma
= dev
->dma
;
1095 drm_i810_private_t
*dev_priv
= (drm_i810_private_t
*) dev
->dev_private
;
1096 u32
*hw_status
= dev_priv
->hw_status_page
;
1097 drm_i810_sarea_t
*sarea_priv
= (drm_i810_sarea_t
*)
1098 dev_priv
->sarea_priv
;
1099 drm_i810_mc_t
*mc
= data
;
1101 LOCK_TEST_WITH_RETURN(dev
, file_priv
);
1103 if (mc
->idx
>= dma
->buf_count
|| mc
->idx
< 0)
1106 i810_dma_dispatch_mc(dev
, dma
->buflist
[mc
->idx
], mc
->used
,
1109 atomic_add(mc
->used
, &dev
->counts
[_DRM_STAT_SECONDARY
]);
1110 atomic_inc(&dev
->counts
[_DRM_STAT_DMA
]);
1111 sarea_priv
->last_enqueue
= dev_priv
->counter
- 1;
1112 sarea_priv
->last_dispatch
= (int)hw_status
[5];
1117 static int i810_rstatus(struct drm_device
*dev
, void *data
,
1118 struct drm_file
*file_priv
)
1120 drm_i810_private_t
*dev_priv
= (drm_i810_private_t
*) dev
->dev_private
;
1122 return (int)(((u32
*) (dev_priv
->hw_status_page
))[4]);
1125 static int i810_ov0_info(struct drm_device
*dev
, void *data
,
1126 struct drm_file
*file_priv
)
1128 drm_i810_private_t
*dev_priv
= (drm_i810_private_t
*) dev
->dev_private
;
1129 drm_i810_overlay_t
*ov
= data
;
1131 ov
->offset
= dev_priv
->overlay_offset
;
1132 ov
->physical
= dev_priv
->overlay_physical
;
1137 static int i810_fstatus(struct drm_device
*dev
, void *data
,
1138 struct drm_file
*file_priv
)
1140 drm_i810_private_t
*dev_priv
= (drm_i810_private_t
*) dev
->dev_private
;
1142 LOCK_TEST_WITH_RETURN(dev
, file_priv
);
1143 return I810_READ(0x30008);
1146 static int i810_ov0_flip(struct drm_device
*dev
, void *data
,
1147 struct drm_file
*file_priv
)
1149 drm_i810_private_t
*dev_priv
= (drm_i810_private_t
*) dev
->dev_private
;
1151 LOCK_TEST_WITH_RETURN(dev
, file_priv
);
1153 /* Tell the overlay to update */
1154 I810_WRITE(0x30000, dev_priv
->overlay_physical
| 0x80000000);
1159 /* Not sure why this isn't set all the time:
1161 static void i810_do_init_pageflip(struct drm_device
*dev
)
1163 drm_i810_private_t
*dev_priv
= dev
->dev_private
;
1166 dev_priv
->page_flipping
= 1;
1167 dev_priv
->current_page
= 0;
1168 dev_priv
->sarea_priv
->pf_current_page
= dev_priv
->current_page
;
1171 static int i810_do_cleanup_pageflip(struct drm_device
*dev
)
1173 drm_i810_private_t
*dev_priv
= dev
->dev_private
;
1176 if (dev_priv
->current_page
!= 0)
1177 i810_dma_dispatch_flip(dev
);
1179 dev_priv
->page_flipping
= 0;
1183 static int i810_flip_bufs(struct drm_device
*dev
, void *data
,
1184 struct drm_file
*file_priv
)
1186 drm_i810_private_t
*dev_priv
= dev
->dev_private
;
1190 LOCK_TEST_WITH_RETURN(dev
, file_priv
);
1192 if (!dev_priv
->page_flipping
)
1193 i810_do_init_pageflip(dev
);
1195 i810_dma_dispatch_flip(dev
);
1199 int i810_driver_load(struct drm_device
*dev
, unsigned long flags
)
1201 /* i810 has 4 more counters */
1203 dev
->types
[6] = _DRM_STAT_IRQ
;
1204 dev
->types
[7] = _DRM_STAT_PRIMARY
;
1205 dev
->types
[8] = _DRM_STAT_SECONDARY
;
1206 dev
->types
[9] = _DRM_STAT_DMA
;
1208 pci_set_master(dev
->pdev
);
1213 void i810_driver_lastclose(struct drm_device
*dev
)
1215 i810_dma_cleanup(dev
);
1218 void i810_driver_preclose(struct drm_device
*dev
, struct drm_file
*file_priv
)
1220 if (dev
->dev_private
) {
1221 drm_i810_private_t
*dev_priv
= dev
->dev_private
;
1222 if (dev_priv
->page_flipping
)
1223 i810_do_cleanup_pageflip(dev
);
1226 if (file_priv
->master
&& file_priv
->master
->lock
.hw_lock
) {
1227 drm_idlelock_take(&file_priv
->master
->lock
);
1228 i810_driver_reclaim_buffers(dev
, file_priv
);
1229 drm_idlelock_release(&file_priv
->master
->lock
);
1231 /* master disappeared, clean up stuff anyway and hope nothing
1233 i810_driver_reclaim_buffers(dev
, file_priv
);
1238 int i810_driver_dma_quiescent(struct drm_device
*dev
)
1240 i810_dma_quiescent(dev
);
1244 const struct drm_ioctl_desc i810_ioctls
[] = {
1245 DRM_IOCTL_DEF_DRV(I810_INIT
, i810_dma_init
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
|DRM_UNLOCKED
),
1246 DRM_IOCTL_DEF_DRV(I810_VERTEX
, i810_dma_vertex
, DRM_AUTH
|DRM_UNLOCKED
),
1247 DRM_IOCTL_DEF_DRV(I810_CLEAR
, i810_clear_bufs
, DRM_AUTH
|DRM_UNLOCKED
),
1248 DRM_IOCTL_DEF_DRV(I810_FLUSH
, i810_flush_ioctl
, DRM_AUTH
|DRM_UNLOCKED
),
1249 DRM_IOCTL_DEF_DRV(I810_GETAGE
, i810_getage
, DRM_AUTH
|DRM_UNLOCKED
),
1250 DRM_IOCTL_DEF_DRV(I810_GETBUF
, i810_getbuf
, DRM_AUTH
|DRM_UNLOCKED
),
1251 DRM_IOCTL_DEF_DRV(I810_SWAP
, i810_swap_bufs
, DRM_AUTH
|DRM_UNLOCKED
),
1252 DRM_IOCTL_DEF_DRV(I810_COPY
, i810_copybuf
, DRM_AUTH
|DRM_UNLOCKED
),
1253 DRM_IOCTL_DEF_DRV(I810_DOCOPY
, i810_docopy
, DRM_AUTH
|DRM_UNLOCKED
),
1254 DRM_IOCTL_DEF_DRV(I810_OV0INFO
, i810_ov0_info
, DRM_AUTH
|DRM_UNLOCKED
),
1255 DRM_IOCTL_DEF_DRV(I810_FSTATUS
, i810_fstatus
, DRM_AUTH
|DRM_UNLOCKED
),
1256 DRM_IOCTL_DEF_DRV(I810_OV0FLIP
, i810_ov0_flip
, DRM_AUTH
|DRM_UNLOCKED
),
1257 DRM_IOCTL_DEF_DRV(I810_MC
, i810_dma_mc
, DRM_AUTH
|DRM_MASTER
|DRM_ROOT_ONLY
|DRM_UNLOCKED
),
1258 DRM_IOCTL_DEF_DRV(I810_RSTATUS
, i810_rstatus
, DRM_AUTH
|DRM_UNLOCKED
),
1259 DRM_IOCTL_DEF_DRV(I810_FLIP
, i810_flip_bufs
, DRM_AUTH
|DRM_UNLOCKED
),
1262 int i810_max_ioctl
= DRM_ARRAY_SIZE(i810_ioctls
);
1265 * Determine if the device really is AGP or not.
1267 * All Intel graphics chipsets are treated as AGP, even if they are really
1270 * \param dev The device to be tested.
1273 * A value of 1 is always retured to indictate every i810 is AGP.
1275 int i810_driver_device_is_agp(struct drm_device
*dev
)