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1da177e4 LT |
1 | /* i810_dma.c -- DMA support for the i810 -*- linux-c -*- |
2 | * Created: Mon Dec 13 01:50:01 1999 by jhartmann@precisioninsight.com | |
3 | * | |
4 | * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. | |
5 | * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. | |
6 | * All Rights Reserved. | |
7 | * | |
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: | |
14 | * | |
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 | |
17 | * Software. | |
18 | * | |
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. | |
26 | * | |
27 | * Authors: Rickard E. (Rik) Faith <faith@valinux.com> | |
28 | * Jeff Hartmann <jhartmann@valinux.com> | |
29 | * Keith Whitwell <keith@tungstengraphics.com> | |
30 | * | |
31 | */ | |
32 | ||
33 | #include "drmP.h" | |
34 | #include "drm.h" | |
35 | #include "i810_drm.h" | |
36 | #include "i810_drv.h" | |
37 | #include <linux/interrupt.h> /* For task queue support */ | |
38 | #include <linux/delay.h> | |
5a0e3ad6 | 39 | #include <linux/slab.h> |
58374713 | 40 | #include <linux/smp_lock.h> |
1da177e4 LT |
41 | #include <linux/pagemap.h> |
42 | ||
43 | #define I810_BUF_FREE 2 | |
44 | #define I810_BUF_CLIENT 1 | |
bc5f4523 | 45 | #define I810_BUF_HARDWARE 0 |
1da177e4 LT |
46 | |
47 | #define I810_BUF_UNMAPPED 0 | |
48 | #define I810_BUF_MAPPED 1 | |
49 | ||
056219e2 | 50 | static struct drm_buf *i810_freelist_get(struct drm_device * dev) |
1da177e4 | 51 | { |
cdd55a29 | 52 | struct drm_device_dma *dma = dev->dma; |
b5e89ed5 DA |
53 | int i; |
54 | int used; | |
1da177e4 LT |
55 | |
56 | /* Linear search might not be the best solution */ | |
57 | ||
b5e89ed5 | 58 | for (i = 0; i < dma->buf_count; i++) { |
056219e2 | 59 | struct drm_buf *buf = dma->buflist[i]; |
b5e89ed5 | 60 | drm_i810_buf_priv_t *buf_priv = buf->dev_private; |
1da177e4 | 61 | /* In use is already a pointer */ |
b5e89ed5 | 62 | used = cmpxchg(buf_priv->in_use, I810_BUF_FREE, |
1da177e4 | 63 | I810_BUF_CLIENT); |
aca791c2 | 64 | if (used == I810_BUF_FREE) |
1da177e4 | 65 | return buf; |
1da177e4 | 66 | } |
b5e89ed5 | 67 | return NULL; |
1da177e4 LT |
68 | } |
69 | ||
70 | /* This should only be called if the buffer is not sent to the hardware | |
71 | * yet, the hardware updates in use for us once its on the ring buffer. | |
72 | */ | |
73 | ||
aca791c2 | 74 | static int i810_freelist_put(struct drm_device *dev, struct drm_buf *buf) |
1da177e4 | 75 | { |
b5e89ed5 DA |
76 | drm_i810_buf_priv_t *buf_priv = buf->dev_private; |
77 | int used; | |
1da177e4 | 78 | |
b5e89ed5 DA |
79 | /* In use is already a pointer */ |
80 | used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE); | |
1da177e4 | 81 | if (used != I810_BUF_CLIENT) { |
b5e89ed5 DA |
82 | DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx); |
83 | return -EINVAL; | |
1da177e4 LT |
84 | } |
85 | ||
b5e89ed5 | 86 | return 0; |
1da177e4 LT |
87 | } |
88 | ||
c94f7029 | 89 | static int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma) |
1da177e4 | 90 | { |
eddca551 DA |
91 | struct drm_file *priv = filp->private_data; |
92 | struct drm_device *dev; | |
b5e89ed5 | 93 | drm_i810_private_t *dev_priv; |
056219e2 | 94 | struct drm_buf *buf; |
1da177e4 LT |
95 | drm_i810_buf_priv_t *buf_priv; |
96 | ||
97 | lock_kernel(); | |
2c14f28b | 98 | dev = priv->minor->dev; |
1da177e4 | 99 | dev_priv = dev->dev_private; |
b5e89ed5 | 100 | buf = dev_priv->mmap_buffer; |
1da177e4 LT |
101 | buf_priv = buf->dev_private; |
102 | ||
103 | vma->vm_flags |= (VM_IO | VM_DONTCOPY); | |
104 | vma->vm_file = filp; | |
105 | ||
b5e89ed5 | 106 | buf_priv->currently_mapped = I810_BUF_MAPPED; |
1da177e4 LT |
107 | unlock_kernel(); |
108 | ||
109 | if (io_remap_pfn_range(vma, vma->vm_start, | |
3d77461e | 110 | vma->vm_pgoff, |
b5e89ed5 DA |
111 | vma->vm_end - vma->vm_start, vma->vm_page_prot)) |
112 | return -EAGAIN; | |
1da177e4 LT |
113 | return 0; |
114 | } | |
115 | ||
2b8693c0 | 116 | static const struct file_operations i810_buffer_fops = { |
b5e89ed5 | 117 | .open = drm_open, |
c94f7029 | 118 | .release = drm_release, |
ed8b6704 | 119 | .unlocked_ioctl = drm_ioctl, |
b5e89ed5 DA |
120 | .mmap = i810_mmap_buffers, |
121 | .fasync = drm_fasync, | |
6038f373 | 122 | .llseek = noop_llseek, |
c94f7029 DA |
123 | }; |
124 | ||
aca791c2 | 125 | static int i810_map_buffer(struct drm_buf *buf, struct drm_file *file_priv) |
1da177e4 | 126 | { |
2c14f28b | 127 | struct drm_device *dev = file_priv->minor->dev; |
1da177e4 | 128 | drm_i810_buf_priv_t *buf_priv = buf->dev_private; |
b5e89ed5 | 129 | drm_i810_private_t *dev_priv = dev->dev_private; |
99ac48f5 | 130 | const struct file_operations *old_fops; |
1da177e4 LT |
131 | int retcode = 0; |
132 | ||
b5e89ed5 | 133 | if (buf_priv->currently_mapped == I810_BUF_MAPPED) |
1da177e4 LT |
134 | return -EINVAL; |
135 | ||
b5e89ed5 | 136 | down_write(¤t->mm->mmap_sem); |
6c340eac EA |
137 | old_fops = file_priv->filp->f_op; |
138 | file_priv->filp->f_op = &i810_buffer_fops; | |
1da177e4 | 139 | dev_priv->mmap_buffer = buf; |
6c340eac | 140 | buf_priv->virtual = (void *)do_mmap(file_priv->filp, 0, buf->total, |
b5e89ed5 DA |
141 | PROT_READ | PROT_WRITE, |
142 | MAP_SHARED, buf->bus_address); | |
1da177e4 | 143 | dev_priv->mmap_buffer = NULL; |
6c340eac | 144 | file_priv->filp->f_op = old_fops; |
c7aed179 | 145 | if (IS_ERR(buf_priv->virtual)) { |
1da177e4 LT |
146 | /* Real error */ |
147 | DRM_ERROR("mmap error\n"); | |
c7aed179 | 148 | retcode = PTR_ERR(buf_priv->virtual); |
1da177e4 LT |
149 | buf_priv->virtual = NULL; |
150 | } | |
b5e89ed5 | 151 | up_write(¤t->mm->mmap_sem); |
1da177e4 LT |
152 | |
153 | return retcode; | |
154 | } | |
155 | ||
aca791c2 | 156 | static int i810_unmap_buffer(struct drm_buf *buf) |
1da177e4 LT |
157 | { |
158 | drm_i810_buf_priv_t *buf_priv = buf->dev_private; | |
159 | int retcode = 0; | |
160 | ||
161 | if (buf_priv->currently_mapped != I810_BUF_MAPPED) | |
162 | return -EINVAL; | |
163 | ||
164 | down_write(¤t->mm->mmap_sem); | |
165 | retcode = do_munmap(current->mm, | |
166 | (unsigned long)buf_priv->virtual, | |
167 | (size_t) buf->total); | |
168 | up_write(¤t->mm->mmap_sem); | |
169 | ||
b5e89ed5 DA |
170 | buf_priv->currently_mapped = I810_BUF_UNMAPPED; |
171 | buf_priv->virtual = NULL; | |
1da177e4 LT |
172 | |
173 | return retcode; | |
174 | } | |
175 | ||
aca791c2 | 176 | static int i810_dma_get_buffer(struct drm_device *dev, drm_i810_dma_t *d, |
6c340eac | 177 | struct drm_file *file_priv) |
1da177e4 | 178 | { |
056219e2 | 179 | struct drm_buf *buf; |
1da177e4 LT |
180 | drm_i810_buf_priv_t *buf_priv; |
181 | int retcode = 0; | |
182 | ||
183 | buf = i810_freelist_get(dev); | |
184 | if (!buf) { | |
185 | retcode = -ENOMEM; | |
b5e89ed5 | 186 | DRM_DEBUG("retcode=%d\n", retcode); |
1da177e4 LT |
187 | return retcode; |
188 | } | |
189 | ||
6c340eac | 190 | retcode = i810_map_buffer(buf, file_priv); |
1da177e4 LT |
191 | if (retcode) { |
192 | i810_freelist_put(dev, buf); | |
b5e89ed5 | 193 | DRM_ERROR("mapbuf failed, retcode %d\n", retcode); |
1da177e4 LT |
194 | return retcode; |
195 | } | |
6c340eac | 196 | buf->file_priv = file_priv; |
1da177e4 LT |
197 | buf_priv = buf->dev_private; |
198 | d->granted = 1; | |
b5e89ed5 DA |
199 | d->request_idx = buf->idx; |
200 | d->request_size = buf->total; | |
201 | d->virtual = buf_priv->virtual; | |
1da177e4 LT |
202 | |
203 | return retcode; | |
204 | } | |
205 | ||
aca791c2 | 206 | static int i810_dma_cleanup(struct drm_device *dev) |
1da177e4 | 207 | { |
cdd55a29 | 208 | struct drm_device_dma *dma = dev->dma; |
1da177e4 LT |
209 | |
210 | /* Make sure interrupts are disabled here because the uninstall ioctl | |
211 | * may not have been called from userspace and after dev_private | |
212 | * is freed, it's too late. | |
213 | */ | |
214 | if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ) && dev->irq_enabled) | |
215 | drm_irq_uninstall(dev); | |
216 | ||
217 | if (dev->dev_private) { | |
218 | int i; | |
b5e89ed5 DA |
219 | drm_i810_private_t *dev_priv = |
220 | (drm_i810_private_t *) dev->dev_private; | |
1da177e4 | 221 | |
aca791c2 | 222 | if (dev_priv->ring.virtual_start) |
b9094d3a | 223 | drm_core_ioremapfree(&dev_priv->ring.map, dev); |
b5e89ed5 DA |
224 | if (dev_priv->hw_status_page) { |
225 | pci_free_consistent(dev->pdev, PAGE_SIZE, | |
1da177e4 LT |
226 | dev_priv->hw_status_page, |
227 | dev_priv->dma_status_page); | |
b5e89ed5 DA |
228 | /* Need to rewrite hardware status page */ |
229 | I810_WRITE(0x02080, 0x1ffff000); | |
1da177e4 | 230 | } |
9a298b2a | 231 | kfree(dev->dev_private); |
b5e89ed5 | 232 | dev->dev_private = NULL; |
1da177e4 LT |
233 | |
234 | for (i = 0; i < dma->buf_count; i++) { | |
056219e2 | 235 | struct drm_buf *buf = dma->buflist[i]; |
1da177e4 | 236 | drm_i810_buf_priv_t *buf_priv = buf->dev_private; |
b9094d3a | 237 | |
b5e89ed5 | 238 | if (buf_priv->kernel_virtual && buf->total) |
b9094d3a | 239 | drm_core_ioremapfree(&buf_priv->map, dev); |
1da177e4 LT |
240 | } |
241 | } | |
b5e89ed5 | 242 | return 0; |
1da177e4 LT |
243 | } |
244 | ||
aca791c2 | 245 | static int i810_wait_ring(struct drm_device *dev, int n) |
1da177e4 | 246 | { |
b5e89ed5 DA |
247 | drm_i810_private_t *dev_priv = dev->dev_private; |
248 | drm_i810_ring_buffer_t *ring = &(dev_priv->ring); | |
249 | int iters = 0; | |
250 | unsigned long end; | |
1da177e4 LT |
251 | unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR; |
252 | ||
b5e89ed5 DA |
253 | end = jiffies + (HZ * 3); |
254 | while (ring->space < n) { | |
255 | ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR; | |
256 | ring->space = ring->head - (ring->tail + 8); | |
257 | if (ring->space < 0) | |
258 | ring->space += ring->Size; | |
259 | ||
1da177e4 | 260 | if (ring->head != last_head) { |
b5e89ed5 | 261 | end = jiffies + (HZ * 3); |
1da177e4 LT |
262 | last_head = ring->head; |
263 | } | |
b5e89ed5 DA |
264 | |
265 | iters++; | |
1da177e4 | 266 | if (time_before(end, jiffies)) { |
b5e89ed5 DA |
267 | DRM_ERROR("space: %d wanted %d\n", ring->space, n); |
268 | DRM_ERROR("lockup\n"); | |
269 | goto out_wait_ring; | |
1da177e4 LT |
270 | } |
271 | udelay(1); | |
272 | } | |
273 | ||
aca791c2 | 274 | out_wait_ring: |
b5e89ed5 | 275 | return iters; |
1da177e4 LT |
276 | } |
277 | ||
aca791c2 | 278 | static void i810_kernel_lost_context(struct drm_device *dev) |
1da177e4 | 279 | { |
b5e89ed5 DA |
280 | drm_i810_private_t *dev_priv = dev->dev_private; |
281 | drm_i810_ring_buffer_t *ring = &(dev_priv->ring); | |
1da177e4 | 282 | |
b5e89ed5 DA |
283 | ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR; |
284 | ring->tail = I810_READ(LP_RING + RING_TAIL); | |
285 | ring->space = ring->head - (ring->tail + 8); | |
286 | if (ring->space < 0) | |
287 | ring->space += ring->Size; | |
1da177e4 LT |
288 | } |
289 | ||
aca791c2 | 290 | static int i810_freelist_init(struct drm_device *dev, drm_i810_private_t *dev_priv) |
1da177e4 | 291 | { |
cdd55a29 | 292 | struct drm_device_dma *dma = dev->dma; |
b5e89ed5 DA |
293 | int my_idx = 24; |
294 | u32 *hw_status = (u32 *) (dev_priv->hw_status_page + my_idx); | |
295 | int i; | |
1da177e4 LT |
296 | |
297 | if (dma->buf_count > 1019) { | |
b5e89ed5 DA |
298 | /* Not enough space in the status page for the freelist */ |
299 | return -EINVAL; | |
1da177e4 LT |
300 | } |
301 | ||
b5e89ed5 | 302 | for (i = 0; i < dma->buf_count; i++) { |
056219e2 | 303 | struct drm_buf *buf = dma->buflist[i]; |
b5e89ed5 | 304 | drm_i810_buf_priv_t *buf_priv = buf->dev_private; |
1da177e4 | 305 | |
b5e89ed5 DA |
306 | buf_priv->in_use = hw_status++; |
307 | buf_priv->my_use_idx = my_idx; | |
308 | my_idx += 4; | |
1da177e4 | 309 | |
b5e89ed5 | 310 | *buf_priv->in_use = I810_BUF_FREE; |
1da177e4 | 311 | |
b9094d3a DA |
312 | buf_priv->map.offset = buf->bus_address; |
313 | buf_priv->map.size = buf->total; | |
314 | buf_priv->map.type = _DRM_AGP; | |
315 | buf_priv->map.flags = 0; | |
316 | buf_priv->map.mtrr = 0; | |
317 | ||
318 | drm_core_ioremap(&buf_priv->map, dev); | |
319 | buf_priv->kernel_virtual = buf_priv->map.handle; | |
320 | ||
1da177e4 LT |
321 | } |
322 | return 0; | |
323 | } | |
324 | ||
aca791c2 NK |
325 | static int i810_dma_initialize(struct drm_device *dev, |
326 | drm_i810_private_t *dev_priv, | |
327 | drm_i810_init_t *init) | |
1da177e4 | 328 | { |
55910517 | 329 | struct drm_map_list *r_list; |
b5e89ed5 | 330 | memset(dev_priv, 0, sizeof(drm_i810_private_t)); |
1da177e4 | 331 | |
bd1b331f | 332 | list_for_each_entry(r_list, &dev->maplist, head) { |
1da177e4 LT |
333 | if (r_list->map && |
334 | r_list->map->type == _DRM_SHM && | |
b5e89ed5 | 335 | r_list->map->flags & _DRM_CONTAINS_LOCK) { |
1da177e4 | 336 | dev_priv->sarea_map = r_list->map; |
b5e89ed5 DA |
337 | break; |
338 | } | |
339 | } | |
1da177e4 LT |
340 | if (!dev_priv->sarea_map) { |
341 | dev->dev_private = (void *)dev_priv; | |
b5e89ed5 DA |
342 | i810_dma_cleanup(dev); |
343 | DRM_ERROR("can not find sarea!\n"); | |
344 | return -EINVAL; | |
1da177e4 LT |
345 | } |
346 | dev_priv->mmio_map = drm_core_findmap(dev, init->mmio_offset); | |
347 | if (!dev_priv->mmio_map) { | |
348 | dev->dev_private = (void *)dev_priv; | |
b5e89ed5 DA |
349 | i810_dma_cleanup(dev); |
350 | DRM_ERROR("can not find mmio map!\n"); | |
351 | return -EINVAL; | |
1da177e4 | 352 | } |
d1f2b55a | 353 | dev->agp_buffer_token = init->buffers_offset; |
1da177e4 LT |
354 | dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset); |
355 | if (!dev->agp_buffer_map) { | |
356 | dev->dev_private = (void *)dev_priv; | |
b5e89ed5 DA |
357 | i810_dma_cleanup(dev); |
358 | DRM_ERROR("can not find dma buffer map!\n"); | |
359 | return -EINVAL; | |
1da177e4 LT |
360 | } |
361 | ||
362 | dev_priv->sarea_priv = (drm_i810_sarea_t *) | |
b5e89ed5 | 363 | ((u8 *) dev_priv->sarea_map->handle + init->sarea_priv_offset); |
1da177e4 | 364 | |
b5e89ed5 DA |
365 | dev_priv->ring.Start = init->ring_start; |
366 | dev_priv->ring.End = init->ring_end; | |
367 | dev_priv->ring.Size = init->ring_size; | |
1da177e4 | 368 | |
b9094d3a DA |
369 | dev_priv->ring.map.offset = dev->agp->base + init->ring_start; |
370 | dev_priv->ring.map.size = init->ring_size; | |
371 | dev_priv->ring.map.type = _DRM_AGP; | |
372 | dev_priv->ring.map.flags = 0; | |
373 | dev_priv->ring.map.mtrr = 0; | |
1da177e4 | 374 | |
b9094d3a DA |
375 | drm_core_ioremap(&dev_priv->ring.map, dev); |
376 | ||
377 | if (dev_priv->ring.map.handle == NULL) { | |
b5e89ed5 DA |
378 | dev->dev_private = (void *)dev_priv; |
379 | i810_dma_cleanup(dev); | |
380 | DRM_ERROR("can not ioremap virtual address for" | |
1da177e4 | 381 | " ring buffer\n"); |
20caafa6 | 382 | return -ENOMEM; |
1da177e4 LT |
383 | } |
384 | ||
b9094d3a DA |
385 | dev_priv->ring.virtual_start = dev_priv->ring.map.handle; |
386 | ||
b5e89ed5 | 387 | dev_priv->ring.tail_mask = dev_priv->ring.Size - 1; |
1da177e4 LT |
388 | |
389 | dev_priv->w = init->w; | |
390 | dev_priv->h = init->h; | |
391 | dev_priv->pitch = init->pitch; | |
392 | dev_priv->back_offset = init->back_offset; | |
393 | dev_priv->depth_offset = init->depth_offset; | |
394 | dev_priv->front_offset = init->front_offset; | |
395 | ||
396 | dev_priv->overlay_offset = init->overlay_offset; | |
397 | dev_priv->overlay_physical = init->overlay_physical; | |
398 | ||
399 | dev_priv->front_di1 = init->front_offset | init->pitch_bits; | |
400 | dev_priv->back_di1 = init->back_offset | init->pitch_bits; | |
401 | dev_priv->zi1 = init->depth_offset | init->pitch_bits; | |
402 | ||
b5e89ed5 DA |
403 | /* Program Hardware Status Page */ |
404 | dev_priv->hw_status_page = | |
405 | pci_alloc_consistent(dev->pdev, PAGE_SIZE, | |
406 | &dev_priv->dma_status_page); | |
407 | if (!dev_priv->hw_status_page) { | |
1da177e4 LT |
408 | dev->dev_private = (void *)dev_priv; |
409 | i810_dma_cleanup(dev); | |
410 | DRM_ERROR("Can not allocate hardware status page\n"); | |
411 | return -ENOMEM; | |
412 | } | |
b5e89ed5 DA |
413 | memset(dev_priv->hw_status_page, 0, PAGE_SIZE); |
414 | DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page); | |
1da177e4 LT |
415 | |
416 | I810_WRITE(0x02080, dev_priv->dma_status_page); | |
b5e89ed5 | 417 | DRM_DEBUG("Enabled hardware status page\n"); |
1da177e4 | 418 | |
b5e89ed5 | 419 | /* Now we need to init our freelist */ |
1da177e4 LT |
420 | if (i810_freelist_init(dev, dev_priv) != 0) { |
421 | dev->dev_private = (void *)dev_priv; | |
b5e89ed5 DA |
422 | i810_dma_cleanup(dev); |
423 | DRM_ERROR("Not enough space in the status page for" | |
1da177e4 | 424 | " the freelist\n"); |
b5e89ed5 | 425 | return -ENOMEM; |
1da177e4 LT |
426 | } |
427 | dev->dev_private = (void *)dev_priv; | |
428 | ||
b5e89ed5 | 429 | return 0; |
1da177e4 LT |
430 | } |
431 | ||
c153f45f EA |
432 | static int i810_dma_init(struct drm_device *dev, void *data, |
433 | struct drm_file *file_priv) | |
1da177e4 | 434 | { |
b5e89ed5 | 435 | drm_i810_private_t *dev_priv; |
c153f45f | 436 | drm_i810_init_t *init = data; |
b5e89ed5 | 437 | int retcode = 0; |
1da177e4 | 438 | |
c153f45f | 439 | switch (init->func) { |
b5e89ed5 DA |
440 | case I810_INIT_DMA_1_4: |
441 | DRM_INFO("Using v1.4 init.\n"); | |
9a298b2a | 442 | dev_priv = kmalloc(sizeof(drm_i810_private_t), GFP_KERNEL); |
b5e89ed5 DA |
443 | if (dev_priv == NULL) |
444 | return -ENOMEM; | |
c153f45f | 445 | retcode = i810_dma_initialize(dev, dev_priv, init); |
b5e89ed5 DA |
446 | break; |
447 | ||
448 | case I810_CLEANUP_DMA: | |
449 | DRM_INFO("DMA Cleanup\n"); | |
450 | retcode = i810_dma_cleanup(dev); | |
451 | break; | |
c153f45f EA |
452 | default: |
453 | return -EINVAL; | |
1da177e4 LT |
454 | } |
455 | ||
b5e89ed5 | 456 | return retcode; |
1da177e4 LT |
457 | } |
458 | ||
1da177e4 LT |
459 | /* Most efficient way to verify state for the i810 is as it is |
460 | * emitted. Non-conformant state is silently dropped. | |
461 | * | |
462 | * Use 'volatile' & local var tmp to force the emitted values to be | |
463 | * identical to the verified ones. | |
464 | */ | |
aca791c2 | 465 | static void i810EmitContextVerified(struct drm_device *dev, |
b5e89ed5 | 466 | volatile unsigned int *code) |
1da177e4 | 467 | { |
b5e89ed5 | 468 | drm_i810_private_t *dev_priv = dev->dev_private; |
1da177e4 LT |
469 | int i, j = 0; |
470 | unsigned int tmp; | |
471 | RING_LOCALS; | |
472 | ||
b5e89ed5 | 473 | BEGIN_LP_RING(I810_CTX_SETUP_SIZE); |
1da177e4 | 474 | |
b5e89ed5 DA |
475 | OUT_RING(GFX_OP_COLOR_FACTOR); |
476 | OUT_RING(code[I810_CTXREG_CF1]); | |
1da177e4 | 477 | |
b5e89ed5 DA |
478 | OUT_RING(GFX_OP_STIPPLE); |
479 | OUT_RING(code[I810_CTXREG_ST1]); | |
1da177e4 | 480 | |
b5e89ed5 | 481 | for (i = 4; i < I810_CTX_SETUP_SIZE; i++) { |
1da177e4 LT |
482 | tmp = code[i]; |
483 | ||
b5e89ed5 DA |
484 | if ((tmp & (7 << 29)) == (3 << 29) && |
485 | (tmp & (0x1f << 24)) < (0x1d << 24)) { | |
486 | OUT_RING(tmp); | |
1da177e4 | 487 | j++; |
b5e89ed5 DA |
488 | } else |
489 | printk("constext state dropped!!!\n"); | |
1da177e4 LT |
490 | } |
491 | ||
492 | if (j & 1) | |
b5e89ed5 | 493 | OUT_RING(0); |
1da177e4 LT |
494 | |
495 | ADVANCE_LP_RING(); | |
496 | } | |
497 | ||
aca791c2 | 498 | static void i810EmitTexVerified(struct drm_device *dev, volatile unsigned int *code) |
1da177e4 | 499 | { |
b5e89ed5 | 500 | drm_i810_private_t *dev_priv = dev->dev_private; |
1da177e4 LT |
501 | int i, j = 0; |
502 | unsigned int tmp; | |
503 | RING_LOCALS; | |
504 | ||
b5e89ed5 | 505 | BEGIN_LP_RING(I810_TEX_SETUP_SIZE); |
1da177e4 | 506 | |
b5e89ed5 DA |
507 | OUT_RING(GFX_OP_MAP_INFO); |
508 | OUT_RING(code[I810_TEXREG_MI1]); | |
509 | OUT_RING(code[I810_TEXREG_MI2]); | |
510 | OUT_RING(code[I810_TEXREG_MI3]); | |
1da177e4 | 511 | |
b5e89ed5 | 512 | for (i = 4; i < I810_TEX_SETUP_SIZE; i++) { |
1da177e4 LT |
513 | tmp = code[i]; |
514 | ||
b5e89ed5 DA |
515 | if ((tmp & (7 << 29)) == (3 << 29) && |
516 | (tmp & (0x1f << 24)) < (0x1d << 24)) { | |
517 | OUT_RING(tmp); | |
1da177e4 | 518 | j++; |
b5e89ed5 DA |
519 | } else |
520 | printk("texture state dropped!!!\n"); | |
1da177e4 LT |
521 | } |
522 | ||
523 | if (j & 1) | |
b5e89ed5 | 524 | OUT_RING(0); |
1da177e4 LT |
525 | |
526 | ADVANCE_LP_RING(); | |
527 | } | |
528 | ||
1da177e4 LT |
529 | /* Need to do some additional checking when setting the dest buffer. |
530 | */ | |
aca791c2 | 531 | static void i810EmitDestVerified(struct drm_device *dev, |
b5e89ed5 | 532 | volatile unsigned int *code) |
1da177e4 | 533 | { |
b5e89ed5 | 534 | drm_i810_private_t *dev_priv = dev->dev_private; |
1da177e4 LT |
535 | unsigned int tmp; |
536 | RING_LOCALS; | |
537 | ||
b5e89ed5 | 538 | BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2); |
1da177e4 LT |
539 | |
540 | tmp = code[I810_DESTREG_DI1]; | |
541 | if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) { | |
b5e89ed5 DA |
542 | OUT_RING(CMD_OP_DESTBUFFER_INFO); |
543 | OUT_RING(tmp); | |
1da177e4 | 544 | } else |
b5e89ed5 DA |
545 | DRM_DEBUG("bad di1 %x (allow %x or %x)\n", |
546 | tmp, dev_priv->front_di1, dev_priv->back_di1); | |
1da177e4 LT |
547 | |
548 | /* invarient: | |
549 | */ | |
b5e89ed5 DA |
550 | OUT_RING(CMD_OP_Z_BUFFER_INFO); |
551 | OUT_RING(dev_priv->zi1); | |
1da177e4 | 552 | |
b5e89ed5 DA |
553 | OUT_RING(GFX_OP_DESTBUFFER_VARS); |
554 | OUT_RING(code[I810_DESTREG_DV1]); | |
1da177e4 | 555 | |
b5e89ed5 DA |
556 | OUT_RING(GFX_OP_DRAWRECT_INFO); |
557 | OUT_RING(code[I810_DESTREG_DR1]); | |
558 | OUT_RING(code[I810_DESTREG_DR2]); | |
559 | OUT_RING(code[I810_DESTREG_DR3]); | |
560 | OUT_RING(code[I810_DESTREG_DR4]); | |
561 | OUT_RING(0); | |
1da177e4 LT |
562 | |
563 | ADVANCE_LP_RING(); | |
564 | } | |
565 | ||
aca791c2 | 566 | static void i810EmitState(struct drm_device *dev) |
1da177e4 | 567 | { |
b5e89ed5 DA |
568 | drm_i810_private_t *dev_priv = dev->dev_private; |
569 | drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv; | |
1da177e4 | 570 | unsigned int dirty = sarea_priv->dirty; |
b5e89ed5 | 571 | |
3e684eae | 572 | DRM_DEBUG("%x\n", dirty); |
1da177e4 LT |
573 | |
574 | if (dirty & I810_UPLOAD_BUFFERS) { | |
b5e89ed5 | 575 | i810EmitDestVerified(dev, sarea_priv->BufferState); |
1da177e4 LT |
576 | sarea_priv->dirty &= ~I810_UPLOAD_BUFFERS; |
577 | } | |
578 | ||
579 | if (dirty & I810_UPLOAD_CTX) { | |
b5e89ed5 | 580 | i810EmitContextVerified(dev, sarea_priv->ContextState); |
1da177e4 LT |
581 | sarea_priv->dirty &= ~I810_UPLOAD_CTX; |
582 | } | |
583 | ||
584 | if (dirty & I810_UPLOAD_TEX0) { | |
b5e89ed5 | 585 | i810EmitTexVerified(dev, sarea_priv->TexState[0]); |
1da177e4 LT |
586 | sarea_priv->dirty &= ~I810_UPLOAD_TEX0; |
587 | } | |
588 | ||
589 | if (dirty & I810_UPLOAD_TEX1) { | |
b5e89ed5 | 590 | i810EmitTexVerified(dev, sarea_priv->TexState[1]); |
1da177e4 LT |
591 | sarea_priv->dirty &= ~I810_UPLOAD_TEX1; |
592 | } | |
593 | } | |
594 | ||
1da177e4 LT |
595 | /* need to verify |
596 | */ | |
aca791c2 | 597 | static void i810_dma_dispatch_clear(struct drm_device *dev, int flags, |
b5e89ed5 DA |
598 | unsigned int clear_color, |
599 | unsigned int clear_zval) | |
1da177e4 | 600 | { |
b5e89ed5 DA |
601 | drm_i810_private_t *dev_priv = dev->dev_private; |
602 | drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv; | |
1da177e4 | 603 | int nbox = sarea_priv->nbox; |
eddca551 | 604 | struct drm_clip_rect *pbox = sarea_priv->boxes; |
1da177e4 LT |
605 | int pitch = dev_priv->pitch; |
606 | int cpp = 2; | |
607 | int i; | |
608 | RING_LOCALS; | |
b5e89ed5 DA |
609 | |
610 | if (dev_priv->current_page == 1) { | |
611 | unsigned int tmp = flags; | |
612 | ||
1da177e4 | 613 | flags &= ~(I810_FRONT | I810_BACK); |
b5e89ed5 DA |
614 | if (tmp & I810_FRONT) |
615 | flags |= I810_BACK; | |
616 | if (tmp & I810_BACK) | |
617 | flags |= I810_FRONT; | |
1da177e4 LT |
618 | } |
619 | ||
b5e89ed5 | 620 | i810_kernel_lost_context(dev); |
1da177e4 | 621 | |
b5e89ed5 DA |
622 | if (nbox > I810_NR_SAREA_CLIPRECTS) |
623 | nbox = I810_NR_SAREA_CLIPRECTS; | |
1da177e4 | 624 | |
b5e89ed5 | 625 | for (i = 0; i < nbox; i++, pbox++) { |
1da177e4 LT |
626 | unsigned int x = pbox->x1; |
627 | unsigned int y = pbox->y1; | |
628 | unsigned int width = (pbox->x2 - x) * cpp; | |
629 | unsigned int height = pbox->y2 - y; | |
630 | unsigned int start = y * pitch + x * cpp; | |
631 | ||
632 | if (pbox->x1 > pbox->x2 || | |
633 | pbox->y1 > pbox->y2 || | |
b5e89ed5 | 634 | pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h) |
1da177e4 LT |
635 | continue; |
636 | ||
b5e89ed5 DA |
637 | if (flags & I810_FRONT) { |
638 | BEGIN_LP_RING(6); | |
639 | OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3); | |
640 | OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch); | |
641 | OUT_RING((height << 16) | width); | |
642 | OUT_RING(start); | |
643 | OUT_RING(clear_color); | |
644 | OUT_RING(0); | |
1da177e4 LT |
645 | ADVANCE_LP_RING(); |
646 | } | |
647 | ||
b5e89ed5 DA |
648 | if (flags & I810_BACK) { |
649 | BEGIN_LP_RING(6); | |
650 | OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3); | |
651 | OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch); | |
652 | OUT_RING((height << 16) | width); | |
653 | OUT_RING(dev_priv->back_offset + start); | |
654 | OUT_RING(clear_color); | |
655 | OUT_RING(0); | |
1da177e4 LT |
656 | ADVANCE_LP_RING(); |
657 | } | |
658 | ||
b5e89ed5 DA |
659 | if (flags & I810_DEPTH) { |
660 | BEGIN_LP_RING(6); | |
661 | OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3); | |
662 | OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch); | |
663 | OUT_RING((height << 16) | width); | |
664 | OUT_RING(dev_priv->depth_offset + start); | |
665 | OUT_RING(clear_zval); | |
666 | OUT_RING(0); | |
1da177e4 LT |
667 | ADVANCE_LP_RING(); |
668 | } | |
669 | } | |
670 | } | |
671 | ||
aca791c2 | 672 | static void i810_dma_dispatch_swap(struct drm_device *dev) |
1da177e4 | 673 | { |
b5e89ed5 DA |
674 | drm_i810_private_t *dev_priv = dev->dev_private; |
675 | drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv; | |
1da177e4 | 676 | int nbox = sarea_priv->nbox; |
eddca551 | 677 | struct drm_clip_rect *pbox = sarea_priv->boxes; |
1da177e4 LT |
678 | int pitch = dev_priv->pitch; |
679 | int cpp = 2; | |
680 | int i; | |
681 | RING_LOCALS; | |
682 | ||
683 | DRM_DEBUG("swapbuffers\n"); | |
684 | ||
b5e89ed5 | 685 | i810_kernel_lost_context(dev); |
1da177e4 | 686 | |
b5e89ed5 DA |
687 | if (nbox > I810_NR_SAREA_CLIPRECTS) |
688 | nbox = I810_NR_SAREA_CLIPRECTS; | |
1da177e4 | 689 | |
b5e89ed5 | 690 | for (i = 0; i < nbox; i++, pbox++) { |
1da177e4 LT |
691 | unsigned int w = pbox->x2 - pbox->x1; |
692 | unsigned int h = pbox->y2 - pbox->y1; | |
b5e89ed5 | 693 | unsigned int dst = pbox->x1 * cpp + pbox->y1 * pitch; |
1da177e4 LT |
694 | unsigned int start = dst; |
695 | ||
696 | if (pbox->x1 > pbox->x2 || | |
697 | pbox->y1 > pbox->y2 || | |
b5e89ed5 | 698 | pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h) |
1da177e4 LT |
699 | continue; |
700 | ||
b5e89ed5 DA |
701 | BEGIN_LP_RING(6); |
702 | OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_SRC_COPY_BLT | 0x4); | |
703 | OUT_RING(pitch | (0xCC << 16)); | |
704 | OUT_RING((h << 16) | (w * cpp)); | |
1da177e4 | 705 | if (dev_priv->current_page == 0) |
b5e89ed5 | 706 | OUT_RING(dev_priv->front_offset + start); |
1da177e4 | 707 | else |
b5e89ed5 DA |
708 | OUT_RING(dev_priv->back_offset + start); |
709 | OUT_RING(pitch); | |
1da177e4 | 710 | if (dev_priv->current_page == 0) |
b5e89ed5 | 711 | OUT_RING(dev_priv->back_offset + start); |
1da177e4 | 712 | else |
b5e89ed5 | 713 | OUT_RING(dev_priv->front_offset + start); |
1da177e4 LT |
714 | ADVANCE_LP_RING(); |
715 | } | |
716 | } | |
717 | ||
aca791c2 NK |
718 | static void i810_dma_dispatch_vertex(struct drm_device *dev, |
719 | struct drm_buf *buf, int discard, int used) | |
1da177e4 | 720 | { |
b5e89ed5 | 721 | drm_i810_private_t *dev_priv = dev->dev_private; |
1da177e4 | 722 | drm_i810_buf_priv_t *buf_priv = buf->dev_private; |
b5e89ed5 | 723 | drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv; |
eddca551 | 724 | struct drm_clip_rect *box = sarea_priv->boxes; |
b5e89ed5 | 725 | int nbox = sarea_priv->nbox; |
1da177e4 LT |
726 | unsigned long address = (unsigned long)buf->bus_address; |
727 | unsigned long start = address - dev->agp->base; | |
728 | int i = 0; | |
b5e89ed5 | 729 | RING_LOCALS; |
1da177e4 | 730 | |
b5e89ed5 | 731 | i810_kernel_lost_context(dev); |
1da177e4 | 732 | |
b5e89ed5 | 733 | if (nbox > I810_NR_SAREA_CLIPRECTS) |
1da177e4 LT |
734 | nbox = I810_NR_SAREA_CLIPRECTS; |
735 | ||
b5e89ed5 | 736 | if (used > 4 * 1024) |
1da177e4 LT |
737 | used = 0; |
738 | ||
739 | if (sarea_priv->dirty) | |
b5e89ed5 | 740 | i810EmitState(dev); |
1da177e4 LT |
741 | |
742 | if (buf_priv->currently_mapped == I810_BUF_MAPPED) { | |
743 | unsigned int prim = (sarea_priv->vertex_prim & PR_MASK); | |
744 | ||
b5e89ed5 DA |
745 | *(u32 *) buf_priv->kernel_virtual = |
746 | ((GFX_OP_PRIMITIVE | prim | ((used / 4) - 2))); | |
1da177e4 LT |
747 | |
748 | if (used & 4) { | |
c7aed179 | 749 | *(u32 *) ((char *) buf_priv->kernel_virtual + used) = 0; |
1da177e4 LT |
750 | used += 4; |
751 | } | |
752 | ||
753 | i810_unmap_buffer(buf); | |
754 | } | |
755 | ||
756 | if (used) { | |
757 | do { | |
758 | if (i < nbox) { | |
759 | BEGIN_LP_RING(4); | |
b5e89ed5 DA |
760 | OUT_RING(GFX_OP_SCISSOR | SC_UPDATE_SCISSOR | |
761 | SC_ENABLE); | |
762 | OUT_RING(GFX_OP_SCISSOR_INFO); | |
763 | OUT_RING(box[i].x1 | (box[i].y1 << 16)); | |
764 | OUT_RING((box[i].x2 - | |
765 | 1) | ((box[i].y2 - 1) << 16)); | |
1da177e4 LT |
766 | ADVANCE_LP_RING(); |
767 | } | |
768 | ||
769 | BEGIN_LP_RING(4); | |
b5e89ed5 DA |
770 | OUT_RING(CMD_OP_BATCH_BUFFER); |
771 | OUT_RING(start | BB1_PROTECTED); | |
772 | OUT_RING(start + used - 4); | |
773 | OUT_RING(0); | |
1da177e4 LT |
774 | ADVANCE_LP_RING(); |
775 | ||
776 | } while (++i < nbox); | |
777 | } | |
778 | ||
779 | if (discard) { | |
780 | dev_priv->counter++; | |
781 | ||
b5e89ed5 DA |
782 | (void)cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, |
783 | I810_BUF_HARDWARE); | |
1da177e4 LT |
784 | |
785 | BEGIN_LP_RING(8); | |
b5e89ed5 DA |
786 | OUT_RING(CMD_STORE_DWORD_IDX); |
787 | OUT_RING(20); | |
788 | OUT_RING(dev_priv->counter); | |
789 | OUT_RING(CMD_STORE_DWORD_IDX); | |
790 | OUT_RING(buf_priv->my_use_idx); | |
791 | OUT_RING(I810_BUF_FREE); | |
792 | OUT_RING(CMD_REPORT_HEAD); | |
793 | OUT_RING(0); | |
1da177e4 LT |
794 | ADVANCE_LP_RING(); |
795 | } | |
796 | } | |
797 | ||
aca791c2 | 798 | static void i810_dma_dispatch_flip(struct drm_device *dev) |
1da177e4 | 799 | { |
b5e89ed5 | 800 | drm_i810_private_t *dev_priv = dev->dev_private; |
1da177e4 LT |
801 | int pitch = dev_priv->pitch; |
802 | RING_LOCALS; | |
803 | ||
3e684eae | 804 | DRM_DEBUG("page=%d pfCurrentPage=%d\n", |
b5e89ed5 DA |
805 | dev_priv->current_page, |
806 | dev_priv->sarea_priv->pf_current_page); | |
807 | ||
808 | i810_kernel_lost_context(dev); | |
1da177e4 | 809 | |
b5e89ed5 DA |
810 | BEGIN_LP_RING(2); |
811 | OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE); | |
812 | OUT_RING(0); | |
1da177e4 LT |
813 | ADVANCE_LP_RING(); |
814 | ||
b5e89ed5 | 815 | BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2); |
1da177e4 LT |
816 | /* On i815 at least ASYNC is buggy */ |
817 | /* pitch<<5 is from 11.2.8 p158, | |
818 | its the pitch / 8 then left shifted 8, | |
819 | so (pitch >> 3) << 8 */ | |
b5e89ed5 DA |
820 | OUT_RING(CMD_OP_FRONTBUFFER_INFO | (pitch << 5) /*| ASYNC_FLIP */ ); |
821 | if (dev_priv->current_page == 0) { | |
822 | OUT_RING(dev_priv->back_offset); | |
1da177e4 LT |
823 | dev_priv->current_page = 1; |
824 | } else { | |
b5e89ed5 | 825 | OUT_RING(dev_priv->front_offset); |
1da177e4 LT |
826 | dev_priv->current_page = 0; |
827 | } | |
828 | OUT_RING(0); | |
829 | ADVANCE_LP_RING(); | |
830 | ||
831 | BEGIN_LP_RING(2); | |
b5e89ed5 DA |
832 | OUT_RING(CMD_OP_WAIT_FOR_EVENT | WAIT_FOR_PLANE_A_FLIP); |
833 | OUT_RING(0); | |
1da177e4 LT |
834 | ADVANCE_LP_RING(); |
835 | ||
836 | /* Increment the frame counter. The client-side 3D driver must | |
837 | * throttle the framerate by waiting for this value before | |
838 | * performing the swapbuffer ioctl. | |
839 | */ | |
840 | dev_priv->sarea_priv->pf_current_page = dev_priv->current_page; | |
841 | ||
842 | } | |
843 | ||
aca791c2 | 844 | static void i810_dma_quiescent(struct drm_device *dev) |
1da177e4 | 845 | { |
b5e89ed5 DA |
846 | drm_i810_private_t *dev_priv = dev->dev_private; |
847 | RING_LOCALS; | |
1da177e4 | 848 | |
b5e89ed5 | 849 | i810_kernel_lost_context(dev); |
1da177e4 | 850 | |
b5e89ed5 DA |
851 | BEGIN_LP_RING(4); |
852 | OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE); | |
853 | OUT_RING(CMD_REPORT_HEAD); | |
854 | OUT_RING(0); | |
855 | OUT_RING(0); | |
856 | ADVANCE_LP_RING(); | |
1da177e4 | 857 | |
b5e89ed5 | 858 | i810_wait_ring(dev, dev_priv->ring.Size - 8); |
1da177e4 LT |
859 | } |
860 | ||
aca791c2 | 861 | static int i810_flush_queue(struct drm_device *dev) |
1da177e4 | 862 | { |
b5e89ed5 | 863 | drm_i810_private_t *dev_priv = dev->dev_private; |
cdd55a29 | 864 | struct drm_device_dma *dma = dev->dma; |
b5e89ed5 DA |
865 | int i, ret = 0; |
866 | RING_LOCALS; | |
867 | ||
b5e89ed5 | 868 | i810_kernel_lost_context(dev); |
1da177e4 | 869 | |
b5e89ed5 DA |
870 | BEGIN_LP_RING(2); |
871 | OUT_RING(CMD_REPORT_HEAD); | |
872 | OUT_RING(0); | |
873 | ADVANCE_LP_RING(); | |
1da177e4 | 874 | |
b5e89ed5 | 875 | i810_wait_ring(dev, dev_priv->ring.Size - 8); |
1da177e4 | 876 | |
b5e89ed5 | 877 | for (i = 0; i < dma->buf_count; i++) { |
056219e2 | 878 | struct drm_buf *buf = dma->buflist[i]; |
b5e89ed5 | 879 | drm_i810_buf_priv_t *buf_priv = buf->dev_private; |
1da177e4 LT |
880 | |
881 | int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE, | |
882 | I810_BUF_FREE); | |
883 | ||
884 | if (used == I810_BUF_HARDWARE) | |
885 | DRM_DEBUG("reclaimed from HARDWARE\n"); | |
886 | if (used == I810_BUF_CLIENT) | |
887 | DRM_DEBUG("still on client\n"); | |
888 | } | |
889 | ||
b5e89ed5 | 890 | return ret; |
1da177e4 LT |
891 | } |
892 | ||
893 | /* Must be called with the lock held */ | |
aca791c2 | 894 | static void i810_reclaim_buffers(struct drm_device *dev, |
6c340eac | 895 | struct drm_file *file_priv) |
1da177e4 | 896 | { |
cdd55a29 | 897 | struct drm_device_dma *dma = dev->dma; |
b5e89ed5 | 898 | int i; |
1da177e4 | 899 | |
b5e89ed5 DA |
900 | if (!dma) |
901 | return; | |
902 | if (!dev->dev_private) | |
903 | return; | |
904 | if (!dma->buflist) | |
905 | return; | |
1da177e4 | 906 | |
b5e89ed5 | 907 | i810_flush_queue(dev); |
1da177e4 LT |
908 | |
909 | for (i = 0; i < dma->buf_count; i++) { | |
056219e2 | 910 | struct drm_buf *buf = dma->buflist[i]; |
b5e89ed5 | 911 | drm_i810_buf_priv_t *buf_priv = buf->dev_private; |
1da177e4 | 912 | |
6c340eac | 913 | if (buf->file_priv == file_priv && buf_priv) { |
1da177e4 LT |
914 | int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, |
915 | I810_BUF_FREE); | |
916 | ||
917 | if (used == I810_BUF_CLIENT) | |
918 | DRM_DEBUG("reclaimed from client\n"); | |
919 | if (buf_priv->currently_mapped == I810_BUF_MAPPED) | |
b5e89ed5 | 920 | buf_priv->currently_mapped = I810_BUF_UNMAPPED; |
1da177e4 LT |
921 | } |
922 | } | |
923 | } | |
924 | ||
c153f45f EA |
925 | static int i810_flush_ioctl(struct drm_device *dev, void *data, |
926 | struct drm_file *file_priv) | |
1da177e4 | 927 | { |
6c340eac | 928 | LOCK_TEST_WITH_RETURN(dev, file_priv); |
1da177e4 | 929 | |
b5e89ed5 DA |
930 | i810_flush_queue(dev); |
931 | return 0; | |
1da177e4 LT |
932 | } |
933 | ||
c153f45f EA |
934 | static int i810_dma_vertex(struct drm_device *dev, void *data, |
935 | struct drm_file *file_priv) | |
1da177e4 | 936 | { |
cdd55a29 | 937 | struct drm_device_dma *dma = dev->dma; |
b5e89ed5 DA |
938 | drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private; |
939 | u32 *hw_status = dev_priv->hw_status_page; | |
940 | drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *) | |
941 | dev_priv->sarea_priv; | |
c153f45f | 942 | drm_i810_vertex_t *vertex = data; |
1da177e4 | 943 | |
6c340eac | 944 | LOCK_TEST_WITH_RETURN(dev, file_priv); |
1da177e4 | 945 | |
3e684eae | 946 | DRM_DEBUG("idx %d used %d discard %d\n", |
c153f45f | 947 | vertex->idx, vertex->used, vertex->discard); |
1da177e4 | 948 | |
c153f45f | 949 | if (vertex->idx < 0 || vertex->idx > dma->buf_count) |
1da177e4 LT |
950 | return -EINVAL; |
951 | ||
b5e89ed5 | 952 | i810_dma_dispatch_vertex(dev, |
c153f45f EA |
953 | dma->buflist[vertex->idx], |
954 | vertex->discard, vertex->used); | |
1da177e4 | 955 | |
c153f45f | 956 | atomic_add(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]); |
1da177e4 | 957 | atomic_inc(&dev->counts[_DRM_STAT_DMA]); |
b5e89ed5 DA |
958 | sarea_priv->last_enqueue = dev_priv->counter - 1; |
959 | sarea_priv->last_dispatch = (int)hw_status[5]; | |
1da177e4 LT |
960 | |
961 | return 0; | |
962 | } | |
963 | ||
c153f45f EA |
964 | static int i810_clear_bufs(struct drm_device *dev, void *data, |
965 | struct drm_file *file_priv) | |
1da177e4 | 966 | { |
c153f45f | 967 | drm_i810_clear_t *clear = data; |
1da177e4 | 968 | |
6c340eac | 969 | LOCK_TEST_WITH_RETURN(dev, file_priv); |
1da177e4 | 970 | |
b5e89ed5 | 971 | /* GH: Someone's doing nasty things... */ |
aca791c2 | 972 | if (!dev->dev_private) |
b5e89ed5 | 973 | return -EINVAL; |
1da177e4 | 974 | |
c153f45f EA |
975 | i810_dma_dispatch_clear(dev, clear->flags, |
976 | clear->clear_color, clear->clear_depth); | |
b5e89ed5 | 977 | return 0; |
1da177e4 LT |
978 | } |
979 | ||
c153f45f EA |
980 | static int i810_swap_bufs(struct drm_device *dev, void *data, |
981 | struct drm_file *file_priv) | |
1da177e4 | 982 | { |
3e684eae | 983 | DRM_DEBUG("\n"); |
1da177e4 | 984 | |
6c340eac | 985 | LOCK_TEST_WITH_RETURN(dev, file_priv); |
1da177e4 | 986 | |
b5e89ed5 DA |
987 | i810_dma_dispatch_swap(dev); |
988 | return 0; | |
1da177e4 LT |
989 | } |
990 | ||
c153f45f EA |
991 | static int i810_getage(struct drm_device *dev, void *data, |
992 | struct drm_file *file_priv) | |
1da177e4 | 993 | { |
b5e89ed5 DA |
994 | drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private; |
995 | u32 *hw_status = dev_priv->hw_status_page; | |
996 | drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *) | |
997 | dev_priv->sarea_priv; | |
998 | ||
999 | sarea_priv->last_dispatch = (int)hw_status[5]; | |
1da177e4 LT |
1000 | return 0; |
1001 | } | |
1002 | ||
c153f45f EA |
1003 | static int i810_getbuf(struct drm_device *dev, void *data, |
1004 | struct drm_file *file_priv) | |
1da177e4 | 1005 | { |
b5e89ed5 | 1006 | int retcode = 0; |
c153f45f | 1007 | drm_i810_dma_t *d = data; |
b5e89ed5 DA |
1008 | drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private; |
1009 | u32 *hw_status = dev_priv->hw_status_page; | |
1010 | drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *) | |
1011 | dev_priv->sarea_priv; | |
1012 | ||
6c340eac | 1013 | LOCK_TEST_WITH_RETURN(dev, file_priv); |
1da177e4 | 1014 | |
c153f45f | 1015 | d->granted = 0; |
1da177e4 | 1016 | |
c153f45f | 1017 | retcode = i810_dma_get_buffer(dev, d, file_priv); |
1da177e4 LT |
1018 | |
1019 | DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n", | |
ba25f9dc | 1020 | task_pid_nr(current), retcode, d->granted); |
1da177e4 | 1021 | |
b5e89ed5 | 1022 | sarea_priv->last_dispatch = (int)hw_status[5]; |
1da177e4 LT |
1023 | |
1024 | return retcode; | |
1025 | } | |
1026 | ||
c153f45f EA |
1027 | static int i810_copybuf(struct drm_device *dev, void *data, |
1028 | struct drm_file *file_priv) | |
1da177e4 LT |
1029 | { |
1030 | /* Never copy - 2.4.x doesn't need it */ | |
1031 | return 0; | |
1032 | } | |
1033 | ||
c153f45f EA |
1034 | static int i810_docopy(struct drm_device *dev, void *data, |
1035 | struct drm_file *file_priv) | |
1da177e4 LT |
1036 | { |
1037 | /* Never copy - 2.4.x doesn't need it */ | |
1038 | return 0; | |
1039 | } | |
1040 | ||
aca791c2 | 1041 | static void i810_dma_dispatch_mc(struct drm_device *dev, struct drm_buf *buf, int used, |
b5e89ed5 | 1042 | unsigned int last_render) |
1da177e4 LT |
1043 | { |
1044 | drm_i810_private_t *dev_priv = dev->dev_private; | |
1045 | drm_i810_buf_priv_t *buf_priv = buf->dev_private; | |
1046 | drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv; | |
1047 | unsigned long address = (unsigned long)buf->bus_address; | |
1048 | unsigned long start = address - dev->agp->base; | |
1049 | int u; | |
1050 | RING_LOCALS; | |
1051 | ||
1052 | i810_kernel_lost_context(dev); | |
1053 | ||
b5e89ed5 | 1054 | u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_HARDWARE); |
aca791c2 | 1055 | if (u != I810_BUF_CLIENT) |
1da177e4 | 1056 | DRM_DEBUG("MC found buffer that isn't mine!\n"); |
1da177e4 | 1057 | |
b5e89ed5 | 1058 | if (used > 4 * 1024) |
1da177e4 LT |
1059 | used = 0; |
1060 | ||
1061 | sarea_priv->dirty = 0x7f; | |
1062 | ||
3e684eae | 1063 | DRM_DEBUG("addr 0x%lx, used 0x%x\n", address, used); |
1da177e4 LT |
1064 | |
1065 | dev_priv->counter++; | |
1066 | DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter); | |
1da177e4 LT |
1067 | DRM_DEBUG("start : %lx\n", start); |
1068 | DRM_DEBUG("used : %d\n", used); | |
1069 | DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4); | |
1070 | ||
1071 | if (buf_priv->currently_mapped == I810_BUF_MAPPED) { | |
1072 | if (used & 4) { | |
c7aed179 | 1073 | *(u32 *) ((char *) buf_priv->virtual + used) = 0; |
1da177e4 LT |
1074 | used += 4; |
1075 | } | |
1076 | ||
1077 | i810_unmap_buffer(buf); | |
1078 | } | |
1079 | BEGIN_LP_RING(4); | |
b5e89ed5 DA |
1080 | OUT_RING(CMD_OP_BATCH_BUFFER); |
1081 | OUT_RING(start | BB1_PROTECTED); | |
1082 | OUT_RING(start + used - 4); | |
1083 | OUT_RING(0); | |
1da177e4 LT |
1084 | ADVANCE_LP_RING(); |
1085 | ||
1da177e4 | 1086 | BEGIN_LP_RING(8); |
b5e89ed5 DA |
1087 | OUT_RING(CMD_STORE_DWORD_IDX); |
1088 | OUT_RING(buf_priv->my_use_idx); | |
1089 | OUT_RING(I810_BUF_FREE); | |
1090 | OUT_RING(0); | |
1091 | ||
1092 | OUT_RING(CMD_STORE_DWORD_IDX); | |
1093 | OUT_RING(16); | |
1094 | OUT_RING(last_render); | |
1095 | OUT_RING(0); | |
1da177e4 LT |
1096 | ADVANCE_LP_RING(); |
1097 | } | |
1098 | ||
c153f45f EA |
1099 | static int i810_dma_mc(struct drm_device *dev, void *data, |
1100 | struct drm_file *file_priv) | |
1da177e4 | 1101 | { |
cdd55a29 | 1102 | struct drm_device_dma *dma = dev->dma; |
b5e89ed5 | 1103 | drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private; |
1da177e4 LT |
1104 | u32 *hw_status = dev_priv->hw_status_page; |
1105 | drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *) | |
b5e89ed5 | 1106 | dev_priv->sarea_priv; |
c153f45f | 1107 | drm_i810_mc_t *mc = data; |
1da177e4 | 1108 | |
6c340eac | 1109 | LOCK_TEST_WITH_RETURN(dev, file_priv); |
1da177e4 | 1110 | |
c153f45f | 1111 | if (mc->idx >= dma->buf_count || mc->idx < 0) |
1da177e4 LT |
1112 | return -EINVAL; |
1113 | ||
c153f45f EA |
1114 | i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used, |
1115 | mc->last_render); | |
1da177e4 | 1116 | |
c153f45f | 1117 | atomic_add(mc->used, &dev->counts[_DRM_STAT_SECONDARY]); |
1da177e4 | 1118 | atomic_inc(&dev->counts[_DRM_STAT_DMA]); |
b5e89ed5 DA |
1119 | sarea_priv->last_enqueue = dev_priv->counter - 1; |
1120 | sarea_priv->last_dispatch = (int)hw_status[5]; | |
1da177e4 LT |
1121 | |
1122 | return 0; | |
1123 | } | |
1124 | ||
c153f45f EA |
1125 | static int i810_rstatus(struct drm_device *dev, void *data, |
1126 | struct drm_file *file_priv) | |
1da177e4 | 1127 | { |
b5e89ed5 | 1128 | drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private; |
1da177e4 | 1129 | |
b5e89ed5 | 1130 | return (int)(((u32 *) (dev_priv->hw_status_page))[4]); |
1da177e4 LT |
1131 | } |
1132 | ||
c153f45f EA |
1133 | static int i810_ov0_info(struct drm_device *dev, void *data, |
1134 | struct drm_file *file_priv) | |
1da177e4 | 1135 | { |
b5e89ed5 | 1136 | drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private; |
c153f45f EA |
1137 | drm_i810_overlay_t *ov = data; |
1138 | ||
1139 | ov->offset = dev_priv->overlay_offset; | |
1140 | ov->physical = dev_priv->overlay_physical; | |
1da177e4 | 1141 | |
1da177e4 LT |
1142 | return 0; |
1143 | } | |
1144 | ||
c153f45f EA |
1145 | static int i810_fstatus(struct drm_device *dev, void *data, |
1146 | struct drm_file *file_priv) | |
1da177e4 | 1147 | { |
b5e89ed5 | 1148 | drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private; |
1da177e4 | 1149 | |
6c340eac | 1150 | LOCK_TEST_WITH_RETURN(dev, file_priv); |
1da177e4 LT |
1151 | return I810_READ(0x30008); |
1152 | } | |
1153 | ||
c153f45f EA |
1154 | static int i810_ov0_flip(struct drm_device *dev, void *data, |
1155 | struct drm_file *file_priv) | |
1da177e4 | 1156 | { |
b5e89ed5 | 1157 | drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private; |
1da177e4 | 1158 | |
6c340eac | 1159 | LOCK_TEST_WITH_RETURN(dev, file_priv); |
1da177e4 | 1160 | |
aca791c2 | 1161 | /* Tell the overlay to update */ |
b5e89ed5 | 1162 | I810_WRITE(0x30000, dev_priv->overlay_physical | 0x80000000); |
1da177e4 LT |
1163 | |
1164 | return 0; | |
1165 | } | |
1166 | ||
1da177e4 | 1167 | /* Not sure why this isn't set all the time: |
b5e89ed5 | 1168 | */ |
aca791c2 | 1169 | static void i810_do_init_pageflip(struct drm_device *dev) |
1da177e4 LT |
1170 | { |
1171 | drm_i810_private_t *dev_priv = dev->dev_private; | |
b5e89ed5 | 1172 | |
3e684eae | 1173 | DRM_DEBUG("\n"); |
1da177e4 LT |
1174 | dev_priv->page_flipping = 1; |
1175 | dev_priv->current_page = 0; | |
1176 | dev_priv->sarea_priv->pf_current_page = dev_priv->current_page; | |
1177 | } | |
1178 | ||
aca791c2 | 1179 | static int i810_do_cleanup_pageflip(struct drm_device *dev) |
1da177e4 LT |
1180 | { |
1181 | drm_i810_private_t *dev_priv = dev->dev_private; | |
1182 | ||
3e684eae | 1183 | DRM_DEBUG("\n"); |
1da177e4 | 1184 | if (dev_priv->current_page != 0) |
b5e89ed5 | 1185 | i810_dma_dispatch_flip(dev); |
1da177e4 LT |
1186 | |
1187 | dev_priv->page_flipping = 0; | |
1188 | return 0; | |
1189 | } | |
1190 | ||
c153f45f EA |
1191 | static int i810_flip_bufs(struct drm_device *dev, void *data, |
1192 | struct drm_file *file_priv) | |
1da177e4 | 1193 | { |
1da177e4 LT |
1194 | drm_i810_private_t *dev_priv = dev->dev_private; |
1195 | ||
3e684eae | 1196 | DRM_DEBUG("\n"); |
1da177e4 | 1197 | |
6c340eac | 1198 | LOCK_TEST_WITH_RETURN(dev, file_priv); |
1da177e4 | 1199 | |
b5e89ed5 DA |
1200 | if (!dev_priv->page_flipping) |
1201 | i810_do_init_pageflip(dev); | |
1da177e4 | 1202 | |
b5e89ed5 DA |
1203 | i810_dma_dispatch_flip(dev); |
1204 | return 0; | |
1da177e4 LT |
1205 | } |
1206 | ||
eddca551 | 1207 | int i810_driver_load(struct drm_device *dev, unsigned long flags) |
22eae947 DA |
1208 | { |
1209 | /* i810 has 4 more counters */ | |
1210 | dev->counters += 4; | |
1211 | dev->types[6] = _DRM_STAT_IRQ; | |
1212 | dev->types[7] = _DRM_STAT_PRIMARY; | |
1213 | dev->types[8] = _DRM_STAT_SECONDARY; | |
1214 | dev->types[9] = _DRM_STAT_DMA; | |
1215 | ||
1216 | return 0; | |
1217 | } | |
1218 | ||
aca791c2 | 1219 | void i810_driver_lastclose(struct drm_device *dev) |
1da177e4 | 1220 | { |
b5e89ed5 | 1221 | i810_dma_cleanup(dev); |
1da177e4 LT |
1222 | } |
1223 | ||
aca791c2 | 1224 | void i810_driver_preclose(struct drm_device *dev, struct drm_file *file_priv) |
1da177e4 LT |
1225 | { |
1226 | if (dev->dev_private) { | |
1227 | drm_i810_private_t *dev_priv = dev->dev_private; | |
aca791c2 | 1228 | if (dev_priv->page_flipping) |
1da177e4 | 1229 | i810_do_cleanup_pageflip(dev); |
1da177e4 LT |
1230 | } |
1231 | } | |
1232 | ||
aca791c2 | 1233 | void i810_driver_reclaim_buffers_locked(struct drm_device *dev, |
6c340eac | 1234 | struct drm_file *file_priv) |
1da177e4 | 1235 | { |
6c340eac | 1236 | i810_reclaim_buffers(dev, file_priv); |
1da177e4 LT |
1237 | } |
1238 | ||
aca791c2 | 1239 | int i810_driver_dma_quiescent(struct drm_device *dev) |
1da177e4 | 1240 | { |
b5e89ed5 | 1241 | i810_dma_quiescent(dev); |
1da177e4 LT |
1242 | return 0; |
1243 | } | |
1244 | ||
58374713 AB |
1245 | /* |
1246 | * call the drm_ioctl under the big kernel lock because | |
1247 | * to lock against the i810_mmap_buffers function. | |
1248 | */ | |
1249 | long i810_ioctl(struct file *file, unsigned int cmd, unsigned long arg) | |
1250 | { | |
1251 | int ret; | |
1252 | lock_kernel(); | |
1253 | ret = drm_ioctl(file, cmd, arg); | |
1254 | unlock_kernel(); | |
1255 | return ret; | |
1256 | } | |
1257 | ||
c153f45f | 1258 | struct drm_ioctl_desc i810_ioctls[] = { |
1b2f1489 DA |
1259 | DRM_IOCTL_DEF_DRV(I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED), |
1260 | DRM_IOCTL_DEF_DRV(I810_VERTEX, i810_dma_vertex, DRM_AUTH|DRM_UNLOCKED), | |
1261 | DRM_IOCTL_DEF_DRV(I810_CLEAR, i810_clear_bufs, DRM_AUTH|DRM_UNLOCKED), | |
1262 | DRM_IOCTL_DEF_DRV(I810_FLUSH, i810_flush_ioctl, DRM_AUTH|DRM_UNLOCKED), | |
1263 | DRM_IOCTL_DEF_DRV(I810_GETAGE, i810_getage, DRM_AUTH|DRM_UNLOCKED), | |
1264 | DRM_IOCTL_DEF_DRV(I810_GETBUF, i810_getbuf, DRM_AUTH|DRM_UNLOCKED), | |
1265 | DRM_IOCTL_DEF_DRV(I810_SWAP, i810_swap_bufs, DRM_AUTH|DRM_UNLOCKED), | |
1266 | DRM_IOCTL_DEF_DRV(I810_COPY, i810_copybuf, DRM_AUTH|DRM_UNLOCKED), | |
1267 | DRM_IOCTL_DEF_DRV(I810_DOCOPY, i810_docopy, DRM_AUTH|DRM_UNLOCKED), | |
1268 | DRM_IOCTL_DEF_DRV(I810_OV0INFO, i810_ov0_info, DRM_AUTH|DRM_UNLOCKED), | |
1269 | DRM_IOCTL_DEF_DRV(I810_FSTATUS, i810_fstatus, DRM_AUTH|DRM_UNLOCKED), | |
1270 | DRM_IOCTL_DEF_DRV(I810_OV0FLIP, i810_ov0_flip, DRM_AUTH|DRM_UNLOCKED), | |
1271 | DRM_IOCTL_DEF_DRV(I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED), | |
1272 | DRM_IOCTL_DEF_DRV(I810_RSTATUS, i810_rstatus, DRM_AUTH|DRM_UNLOCKED), | |
1273 | DRM_IOCTL_DEF_DRV(I810_FLIP, i810_flip_bufs, DRM_AUTH|DRM_UNLOCKED), | |
1da177e4 LT |
1274 | }; |
1275 | ||
1276 | int i810_max_ioctl = DRM_ARRAY_SIZE(i810_ioctls); | |
cda17380 DA |
1277 | |
1278 | /** | |
1279 | * Determine if the device really is AGP or not. | |
1280 | * | |
1281 | * All Intel graphics chipsets are treated as AGP, even if they are really | |
1282 | * PCI-e. | |
1283 | * | |
1284 | * \param dev The device to be tested. | |
1285 | * | |
1286 | * \returns | |
1287 | * A value of 1 is always retured to indictate every i810 is AGP. | |
1288 | */ | |
aca791c2 | 1289 | int i810_driver_device_is_agp(struct drm_device *dev) |
cda17380 DA |
1290 | { |
1291 | return 1; | |
1292 | } |