2 * Copyright 2008 Jerome Glisse.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
25 * Jerome Glisse <glisse@freedesktop.org>
28 #include <drm/radeon_drm.h>
29 #include "radeon_reg.h"
31 #include "radeon_trace.h"
33 static int radeon_cs_parser_relocs(struct radeon_cs_parser
*p
)
35 struct drm_device
*ddev
= p
->rdev
->ddev
;
36 struct radeon_cs_chunk
*chunk
;
40 if (p
->chunk_relocs_idx
== -1) {
43 chunk
= &p
->chunks
[p
->chunk_relocs_idx
];
45 /* FIXME: we assume that each relocs use 4 dwords */
46 p
->nrelocs
= chunk
->length_dw
/ 4;
47 p
->relocs_ptr
= kcalloc(p
->nrelocs
, sizeof(void *), GFP_KERNEL
);
48 if (p
->relocs_ptr
== NULL
) {
51 p
->relocs
= kcalloc(p
->nrelocs
, sizeof(struct radeon_cs_reloc
), GFP_KERNEL
);
52 if (p
->relocs
== NULL
) {
55 for (i
= 0; i
< p
->nrelocs
; i
++) {
56 struct drm_radeon_cs_reloc
*r
;
59 r
= (struct drm_radeon_cs_reloc
*)&chunk
->kdata
[i
*4];
60 for (j
= 0; j
< i
; j
++) {
61 if (r
->handle
== p
->relocs
[j
].handle
) {
62 p
->relocs_ptr
[i
] = &p
->relocs
[j
];
68 p
->relocs
[i
].handle
= 0;
72 p
->relocs
[i
].gobj
= drm_gem_object_lookup(ddev
, p
->filp
,
74 if (p
->relocs
[i
].gobj
== NULL
) {
75 DRM_ERROR("gem object lookup failed 0x%x\n",
79 p
->relocs_ptr
[i
] = &p
->relocs
[i
];
80 p
->relocs
[i
].robj
= gem_to_radeon_bo(p
->relocs
[i
].gobj
);
81 p
->relocs
[i
].lobj
.bo
= p
->relocs
[i
].robj
;
82 p
->relocs
[i
].lobj
.written
= !!r
->write_domain
;
84 /* the first reloc of an UVD job is the msg and that must be in
85 VRAM, also but everything into VRAM on AGP cards to avoid
87 if (p
->ring
== R600_RING_TYPE_UVD_INDEX
&&
88 p
->rdev
->family
< CHIP_PALM
&&
89 (i
== 0 || drm_pci_device_is_agp(p
->rdev
->ddev
))) {
91 p
->relocs
[i
].lobj
.domain
=
92 RADEON_GEM_DOMAIN_VRAM
;
94 p
->relocs
[i
].lobj
.alt_domain
=
95 RADEON_GEM_DOMAIN_VRAM
;
98 uint32_t domain
= r
->write_domain
?
99 r
->write_domain
: r
->read_domains
;
101 p
->relocs
[i
].lobj
.domain
= domain
;
102 if (domain
== RADEON_GEM_DOMAIN_VRAM
)
103 domain
|= RADEON_GEM_DOMAIN_GTT
;
104 p
->relocs
[i
].lobj
.alt_domain
= domain
;
107 p
->relocs
[i
].lobj
.tv
.bo
= &p
->relocs
[i
].robj
->tbo
;
108 p
->relocs
[i
].handle
= r
->handle
;
110 radeon_bo_list_add_object(&p
->relocs
[i
].lobj
,
113 return radeon_bo_list_validate(&p
->ticket
, &p
->validated
, p
->ring
);
116 static int radeon_cs_get_ring(struct radeon_cs_parser
*p
, u32 ring
, s32 priority
)
118 p
->priority
= priority
;
122 DRM_ERROR("unknown ring id: %d\n", ring
);
124 case RADEON_CS_RING_GFX
:
125 p
->ring
= RADEON_RING_TYPE_GFX_INDEX
;
127 case RADEON_CS_RING_COMPUTE
:
128 if (p
->rdev
->family
>= CHIP_TAHITI
) {
130 p
->ring
= CAYMAN_RING_TYPE_CP1_INDEX
;
132 p
->ring
= CAYMAN_RING_TYPE_CP2_INDEX
;
134 p
->ring
= RADEON_RING_TYPE_GFX_INDEX
;
136 case RADEON_CS_RING_DMA
:
137 if (p
->rdev
->family
>= CHIP_CAYMAN
) {
139 p
->ring
= R600_RING_TYPE_DMA_INDEX
;
141 p
->ring
= CAYMAN_RING_TYPE_DMA1_INDEX
;
142 } else if (p
->rdev
->family
>= CHIP_R600
) {
143 p
->ring
= R600_RING_TYPE_DMA_INDEX
;
148 case RADEON_CS_RING_UVD
:
149 p
->ring
= R600_RING_TYPE_UVD_INDEX
;
155 static void radeon_cs_sync_rings(struct radeon_cs_parser
*p
)
159 for (i
= 0; i
< p
->nrelocs
; i
++) {
160 if (!p
->relocs
[i
].robj
)
163 radeon_ib_sync_to(&p
->ib
, p
->relocs
[i
].robj
->tbo
.sync_obj
);
167 /* XXX: note that this is called from the legacy UMS CS ioctl as well */
168 int radeon_cs_parser_init(struct radeon_cs_parser
*p
, void *data
)
170 struct drm_radeon_cs
*cs
= data
;
171 uint64_t *chunk_array_ptr
;
173 u32 ring
= RADEON_CS_RING_GFX
;
176 if (!cs
->num_chunks
) {
180 INIT_LIST_HEAD(&p
->validated
);
183 p
->ib
.semaphore
= NULL
;
184 p
->const_ib
.sa_bo
= NULL
;
185 p
->const_ib
.semaphore
= NULL
;
186 p
->chunk_ib_idx
= -1;
187 p
->chunk_relocs_idx
= -1;
188 p
->chunk_flags_idx
= -1;
189 p
->chunk_const_ib_idx
= -1;
190 p
->chunks_array
= kcalloc(cs
->num_chunks
, sizeof(uint64_t), GFP_KERNEL
);
191 if (p
->chunks_array
== NULL
) {
194 chunk_array_ptr
= (uint64_t *)(unsigned long)(cs
->chunks
);
195 if (DRM_COPY_FROM_USER(p
->chunks_array
, chunk_array_ptr
,
196 sizeof(uint64_t)*cs
->num_chunks
)) {
200 p
->nchunks
= cs
->num_chunks
;
201 p
->chunks
= kcalloc(p
->nchunks
, sizeof(struct radeon_cs_chunk
), GFP_KERNEL
);
202 if (p
->chunks
== NULL
) {
205 for (i
= 0; i
< p
->nchunks
; i
++) {
206 struct drm_radeon_cs_chunk __user
**chunk_ptr
= NULL
;
207 struct drm_radeon_cs_chunk user_chunk
;
208 uint32_t __user
*cdata
;
210 chunk_ptr
= (void __user
*)(unsigned long)p
->chunks_array
[i
];
211 if (DRM_COPY_FROM_USER(&user_chunk
, chunk_ptr
,
212 sizeof(struct drm_radeon_cs_chunk
))) {
215 p
->chunks
[i
].length_dw
= user_chunk
.length_dw
;
216 p
->chunks
[i
].kdata
= NULL
;
217 p
->chunks
[i
].chunk_id
= user_chunk
.chunk_id
;
218 p
->chunks
[i
].user_ptr
= (void __user
*)(unsigned long)user_chunk
.chunk_data
;
219 if (p
->chunks
[i
].chunk_id
== RADEON_CHUNK_ID_RELOCS
) {
220 p
->chunk_relocs_idx
= i
;
222 if (p
->chunks
[i
].chunk_id
== RADEON_CHUNK_ID_IB
) {
224 /* zero length IB isn't useful */
225 if (p
->chunks
[i
].length_dw
== 0)
228 if (p
->chunks
[i
].chunk_id
== RADEON_CHUNK_ID_CONST_IB
) {
229 p
->chunk_const_ib_idx
= i
;
230 /* zero length CONST IB isn't useful */
231 if (p
->chunks
[i
].length_dw
== 0)
234 if (p
->chunks
[i
].chunk_id
== RADEON_CHUNK_ID_FLAGS
) {
235 p
->chunk_flags_idx
= i
;
236 /* zero length flags aren't useful */
237 if (p
->chunks
[i
].length_dw
== 0)
241 cdata
= (uint32_t *)(unsigned long)user_chunk
.chunk_data
;
242 if ((p
->chunks
[i
].chunk_id
== RADEON_CHUNK_ID_RELOCS
) ||
243 (p
->chunks
[i
].chunk_id
== RADEON_CHUNK_ID_FLAGS
)) {
244 size
= p
->chunks
[i
].length_dw
* sizeof(uint32_t);
245 p
->chunks
[i
].kdata
= kmalloc(size
, GFP_KERNEL
);
246 if (p
->chunks
[i
].kdata
== NULL
) {
249 if (DRM_COPY_FROM_USER(p
->chunks
[i
].kdata
,
250 p
->chunks
[i
].user_ptr
, size
)) {
253 if (p
->chunks
[i
].chunk_id
== RADEON_CHUNK_ID_FLAGS
) {
254 p
->cs_flags
= p
->chunks
[i
].kdata
[0];
255 if (p
->chunks
[i
].length_dw
> 1)
256 ring
= p
->chunks
[i
].kdata
[1];
257 if (p
->chunks
[i
].length_dw
> 2)
258 priority
= (s32
)p
->chunks
[i
].kdata
[2];
263 /* these are KMS only */
265 if ((p
->cs_flags
& RADEON_CS_USE_VM
) &&
266 !p
->rdev
->vm_manager
.enabled
) {
267 DRM_ERROR("VM not active on asic!\n");
271 if (radeon_cs_get_ring(p
, ring
, priority
))
274 /* we only support VM on some SI+ rings */
275 if ((p
->rdev
->asic
->ring
[p
->ring
]->cs_parse
== NULL
) &&
276 ((p
->cs_flags
& RADEON_CS_USE_VM
) == 0)) {
277 DRM_ERROR("Ring %d requires VM!\n", p
->ring
);
282 /* deal with non-vm */
283 if ((p
->chunk_ib_idx
!= -1) &&
284 ((p
->cs_flags
& RADEON_CS_USE_VM
) == 0) &&
285 (p
->chunks
[p
->chunk_ib_idx
].chunk_id
== RADEON_CHUNK_ID_IB
)) {
286 if (p
->chunks
[p
->chunk_ib_idx
].length_dw
> (16 * 1024)) {
287 DRM_ERROR("cs IB too big: %d\n",
288 p
->chunks
[p
->chunk_ib_idx
].length_dw
);
291 if (p
->rdev
&& (p
->rdev
->flags
& RADEON_IS_AGP
)) {
292 p
->chunks
[p
->chunk_ib_idx
].kpage
[0] = kmalloc(PAGE_SIZE
, GFP_KERNEL
);
293 p
->chunks
[p
->chunk_ib_idx
].kpage
[1] = kmalloc(PAGE_SIZE
, GFP_KERNEL
);
294 if (p
->chunks
[p
->chunk_ib_idx
].kpage
[0] == NULL
||
295 p
->chunks
[p
->chunk_ib_idx
].kpage
[1] == NULL
) {
296 kfree(p
->chunks
[p
->chunk_ib_idx
].kpage
[0]);
297 kfree(p
->chunks
[p
->chunk_ib_idx
].kpage
[1]);
298 p
->chunks
[p
->chunk_ib_idx
].kpage
[0] = NULL
;
299 p
->chunks
[p
->chunk_ib_idx
].kpage
[1] = NULL
;
303 p
->chunks
[p
->chunk_ib_idx
].kpage_idx
[0] = -1;
304 p
->chunks
[p
->chunk_ib_idx
].kpage_idx
[1] = -1;
305 p
->chunks
[p
->chunk_ib_idx
].last_copied_page
= -1;
306 p
->chunks
[p
->chunk_ib_idx
].last_page_index
=
307 ((p
->chunks
[p
->chunk_ib_idx
].length_dw
* 4) - 1) / PAGE_SIZE
;
314 * cs_parser_fini() - clean parser states
315 * @parser: parser structure holding parsing context.
316 * @error: error number
318 * If error is set than unvalidate buffer, otherwise just free memory
319 * used by parsing context.
321 static void radeon_cs_parser_fini(struct radeon_cs_parser
*parser
, int error
, bool backoff
)
326 ttm_eu_fence_buffer_objects(&parser
->ticket
,
329 } else if (backoff
) {
330 ttm_eu_backoff_reservation(&parser
->ticket
,
334 if (parser
->relocs
!= NULL
) {
335 for (i
= 0; i
< parser
->nrelocs
; i
++) {
336 if (parser
->relocs
[i
].gobj
)
337 drm_gem_object_unreference_unlocked(parser
->relocs
[i
].gobj
);
340 kfree(parser
->track
);
341 kfree(parser
->relocs
);
342 kfree(parser
->relocs_ptr
);
343 for (i
= 0; i
< parser
->nchunks
; i
++) {
344 kfree(parser
->chunks
[i
].kdata
);
345 if ((parser
->rdev
->flags
& RADEON_IS_AGP
)) {
346 kfree(parser
->chunks
[i
].kpage
[0]);
347 kfree(parser
->chunks
[i
].kpage
[1]);
350 kfree(parser
->chunks
);
351 kfree(parser
->chunks_array
);
352 radeon_ib_free(parser
->rdev
, &parser
->ib
);
353 radeon_ib_free(parser
->rdev
, &parser
->const_ib
);
356 static int radeon_cs_ib_chunk(struct radeon_device
*rdev
,
357 struct radeon_cs_parser
*parser
)
359 struct radeon_cs_chunk
*ib_chunk
;
362 if (parser
->chunk_ib_idx
== -1)
365 if (parser
->cs_flags
& RADEON_CS_USE_VM
)
368 ib_chunk
= &parser
->chunks
[parser
->chunk_ib_idx
];
369 /* Copy the packet into the IB, the parser will read from the
370 * input memory (cached) and write to the IB (which can be
373 r
= radeon_ib_get(rdev
, parser
->ring
, &parser
->ib
,
374 NULL
, ib_chunk
->length_dw
* 4);
376 DRM_ERROR("Failed to get ib !\n");
379 parser
->ib
.length_dw
= ib_chunk
->length_dw
;
380 r
= radeon_cs_parse(rdev
, parser
->ring
, parser
);
381 if (r
|| parser
->parser_error
) {
382 DRM_ERROR("Invalid command stream !\n");
385 r
= radeon_cs_finish_pages(parser
);
387 DRM_ERROR("Invalid command stream !\n");
391 if (parser
->ring
== R600_RING_TYPE_UVD_INDEX
)
392 radeon_uvd_note_usage(rdev
);
394 radeon_cs_sync_rings(parser
);
395 r
= radeon_ib_schedule(rdev
, &parser
->ib
, NULL
);
397 DRM_ERROR("Failed to schedule IB !\n");
402 static int radeon_bo_vm_update_pte(struct radeon_cs_parser
*parser
,
403 struct radeon_vm
*vm
)
405 struct radeon_device
*rdev
= parser
->rdev
;
406 struct radeon_bo_list
*lobj
;
407 struct radeon_bo
*bo
;
410 r
= radeon_vm_bo_update_pte(rdev
, vm
, rdev
->ring_tmp_bo
.bo
, &rdev
->ring_tmp_bo
.bo
->tbo
.mem
);
414 list_for_each_entry(lobj
, &parser
->validated
, tv
.head
) {
416 r
= radeon_vm_bo_update_pte(parser
->rdev
, vm
, bo
, &bo
->tbo
.mem
);
424 static int radeon_cs_ib_vm_chunk(struct radeon_device
*rdev
,
425 struct radeon_cs_parser
*parser
)
427 struct radeon_cs_chunk
*ib_chunk
;
428 struct radeon_fpriv
*fpriv
= parser
->filp
->driver_priv
;
429 struct radeon_vm
*vm
= &fpriv
->vm
;
432 if (parser
->chunk_ib_idx
== -1)
434 if ((parser
->cs_flags
& RADEON_CS_USE_VM
) == 0)
437 if ((rdev
->family
>= CHIP_TAHITI
) &&
438 (parser
->chunk_const_ib_idx
!= -1)) {
439 ib_chunk
= &parser
->chunks
[parser
->chunk_const_ib_idx
];
440 if (ib_chunk
->length_dw
> RADEON_IB_VM_MAX_SIZE
) {
441 DRM_ERROR("cs IB CONST too big: %d\n", ib_chunk
->length_dw
);
444 r
= radeon_ib_get(rdev
, parser
->ring
, &parser
->const_ib
,
445 vm
, ib_chunk
->length_dw
* 4);
447 DRM_ERROR("Failed to get const ib !\n");
450 parser
->const_ib
.is_const_ib
= true;
451 parser
->const_ib
.length_dw
= ib_chunk
->length_dw
;
452 /* Copy the packet into the IB */
453 if (DRM_COPY_FROM_USER(parser
->const_ib
.ptr
, ib_chunk
->user_ptr
,
454 ib_chunk
->length_dw
* 4)) {
457 r
= radeon_ring_ib_parse(rdev
, parser
->ring
, &parser
->const_ib
);
463 ib_chunk
= &parser
->chunks
[parser
->chunk_ib_idx
];
464 if (ib_chunk
->length_dw
> RADEON_IB_VM_MAX_SIZE
) {
465 DRM_ERROR("cs IB too big: %d\n", ib_chunk
->length_dw
);
468 r
= radeon_ib_get(rdev
, parser
->ring
, &parser
->ib
,
469 vm
, ib_chunk
->length_dw
* 4);
471 DRM_ERROR("Failed to get ib !\n");
474 parser
->ib
.length_dw
= ib_chunk
->length_dw
;
475 /* Copy the packet into the IB */
476 if (DRM_COPY_FROM_USER(parser
->ib
.ptr
, ib_chunk
->user_ptr
,
477 ib_chunk
->length_dw
* 4)) {
480 r
= radeon_ring_ib_parse(rdev
, parser
->ring
, &parser
->ib
);
485 if (parser
->ring
== R600_RING_TYPE_UVD_INDEX
)
486 radeon_uvd_note_usage(rdev
);
488 mutex_lock(&rdev
->vm_manager
.lock
);
489 mutex_lock(&vm
->mutex
);
490 r
= radeon_vm_alloc_pt(rdev
, vm
);
494 r
= radeon_bo_vm_update_pte(parser
, vm
);
498 radeon_cs_sync_rings(parser
);
499 radeon_ib_sync_to(&parser
->ib
, vm
->fence
);
500 radeon_ib_sync_to(&parser
->ib
, radeon_vm_grab_id(
501 rdev
, vm
, parser
->ring
));
503 if ((rdev
->family
>= CHIP_TAHITI
) &&
504 (parser
->chunk_const_ib_idx
!= -1)) {
505 r
= radeon_ib_schedule(rdev
, &parser
->ib
, &parser
->const_ib
);
507 r
= radeon_ib_schedule(rdev
, &parser
->ib
, NULL
);
511 radeon_vm_fence(rdev
, vm
, parser
->ib
.fence
);
515 radeon_vm_add_to_lru(rdev
, vm
);
516 mutex_unlock(&vm
->mutex
);
517 mutex_unlock(&rdev
->vm_manager
.lock
);
521 static int radeon_cs_handle_lockup(struct radeon_device
*rdev
, int r
)
524 r
= radeon_gpu_reset(rdev
);
531 int radeon_cs_ioctl(struct drm_device
*dev
, void *data
, struct drm_file
*filp
)
533 struct radeon_device
*rdev
= dev
->dev_private
;
534 struct radeon_cs_parser parser
;
537 down_read(&rdev
->exclusive_lock
);
538 if (!rdev
->accel_working
) {
539 up_read(&rdev
->exclusive_lock
);
542 /* initialize parser */
543 memset(&parser
, 0, sizeof(struct radeon_cs_parser
));
546 parser
.dev
= rdev
->dev
;
547 parser
.family
= rdev
->family
;
548 r
= radeon_cs_parser_init(&parser
, data
);
550 DRM_ERROR("Failed to initialize parser !\n");
551 radeon_cs_parser_fini(&parser
, r
, false);
552 up_read(&rdev
->exclusive_lock
);
553 r
= radeon_cs_handle_lockup(rdev
, r
);
556 r
= radeon_cs_parser_relocs(&parser
);
558 if (r
!= -ERESTARTSYS
)
559 DRM_ERROR("Failed to parse relocation %d!\n", r
);
560 radeon_cs_parser_fini(&parser
, r
, false);
561 up_read(&rdev
->exclusive_lock
);
562 r
= radeon_cs_handle_lockup(rdev
, r
);
566 trace_radeon_cs(&parser
);
568 r
= radeon_cs_ib_chunk(rdev
, &parser
);
572 r
= radeon_cs_ib_vm_chunk(rdev
, &parser
);
577 radeon_cs_parser_fini(&parser
, r
, true);
578 up_read(&rdev
->exclusive_lock
);
579 r
= radeon_cs_handle_lockup(rdev
, r
);
583 int radeon_cs_finish_pages(struct radeon_cs_parser
*p
)
585 struct radeon_cs_chunk
*ibc
= &p
->chunks
[p
->chunk_ib_idx
];
587 int size
= PAGE_SIZE
;
589 for (i
= ibc
->last_copied_page
+ 1; i
<= ibc
->last_page_index
; i
++) {
590 if (i
== ibc
->last_page_index
) {
591 size
= (ibc
->length_dw
* 4) % PAGE_SIZE
;
596 if (DRM_COPY_FROM_USER(p
->ib
.ptr
+ (i
* (PAGE_SIZE
/4)),
597 ibc
->user_ptr
+ (i
* PAGE_SIZE
),
604 static int radeon_cs_update_pages(struct radeon_cs_parser
*p
, int pg_idx
)
607 struct radeon_cs_chunk
*ibc
= &p
->chunks
[p
->chunk_ib_idx
];
609 int size
= PAGE_SIZE
;
610 bool copy1
= (p
->rdev
&& (p
->rdev
->flags
& RADEON_IS_AGP
)) ?
613 for (i
= ibc
->last_copied_page
+ 1; i
< pg_idx
; i
++) {
614 if (DRM_COPY_FROM_USER(p
->ib
.ptr
+ (i
* (PAGE_SIZE
/4)),
615 ibc
->user_ptr
+ (i
* PAGE_SIZE
),
617 p
->parser_error
= -EFAULT
;
622 if (pg_idx
== ibc
->last_page_index
) {
623 size
= (ibc
->length_dw
* 4) % PAGE_SIZE
;
628 new_page
= ibc
->kpage_idx
[0] < ibc
->kpage_idx
[1] ? 0 : 1;
630 ibc
->kpage
[new_page
] = p
->ib
.ptr
+ (pg_idx
* (PAGE_SIZE
/ 4));
632 if (DRM_COPY_FROM_USER(ibc
->kpage
[new_page
],
633 ibc
->user_ptr
+ (pg_idx
* PAGE_SIZE
),
635 p
->parser_error
= -EFAULT
;
639 /* copy to IB for non single case */
641 memcpy((void *)(p
->ib
.ptr
+(pg_idx
*(PAGE_SIZE
/4))), ibc
->kpage
[new_page
], size
);
643 ibc
->last_copied_page
= pg_idx
;
644 ibc
->kpage_idx
[new_page
] = pg_idx
;
649 u32
radeon_get_ib_value(struct radeon_cs_parser
*p
, int idx
)
651 struct radeon_cs_chunk
*ibc
= &p
->chunks
[p
->chunk_ib_idx
];
652 u32 pg_idx
, pg_offset
;
656 pg_idx
= (idx
* 4) / PAGE_SIZE
;
657 pg_offset
= (idx
* 4) % PAGE_SIZE
;
659 if (ibc
->kpage_idx
[0] == pg_idx
)
660 return ibc
->kpage
[0][pg_offset
/4];
661 if (ibc
->kpage_idx
[1] == pg_idx
)
662 return ibc
->kpage
[1][pg_offset
/4];
664 new_page
= radeon_cs_update_pages(p
, pg_idx
);
666 p
->parser_error
= new_page
;
670 idx_value
= ibc
->kpage
[new_page
][pg_offset
/4];
675 * radeon_cs_packet_parse() - parse cp packet and point ib index to next packet
676 * @parser: parser structure holding parsing context.
677 * @pkt: where to store packet information
679 * Assume that chunk_ib_index is properly set. Will return -EINVAL
680 * if packet is bigger than remaining ib size. or if packets is unknown.
682 int radeon_cs_packet_parse(struct radeon_cs_parser
*p
,
683 struct radeon_cs_packet
*pkt
,
686 struct radeon_cs_chunk
*ib_chunk
= &p
->chunks
[p
->chunk_ib_idx
];
687 struct radeon_device
*rdev
= p
->rdev
;
690 if (idx
>= ib_chunk
->length_dw
) {
691 DRM_ERROR("Can not parse packet at %d after CS end %d !\n",
692 idx
, ib_chunk
->length_dw
);
695 header
= radeon_get_ib_value(p
, idx
);
697 pkt
->type
= RADEON_CP_PACKET_GET_TYPE(header
);
698 pkt
->count
= RADEON_CP_PACKET_GET_COUNT(header
);
701 case RADEON_PACKET_TYPE0
:
702 if (rdev
->family
< CHIP_R600
) {
703 pkt
->reg
= R100_CP_PACKET0_GET_REG(header
);
705 RADEON_CP_PACKET0_GET_ONE_REG_WR(header
);
707 pkt
->reg
= R600_CP_PACKET0_GET_REG(header
);
709 case RADEON_PACKET_TYPE3
:
710 pkt
->opcode
= RADEON_CP_PACKET3_GET_OPCODE(header
);
712 case RADEON_PACKET_TYPE2
:
716 DRM_ERROR("Unknown packet type %d at %d !\n", pkt
->type
, idx
);
719 if ((pkt
->count
+ 1 + pkt
->idx
) >= ib_chunk
->length_dw
) {
720 DRM_ERROR("Packet (%d:%d:%d) end after CS buffer (%d) !\n",
721 pkt
->idx
, pkt
->type
, pkt
->count
, ib_chunk
->length_dw
);
728 * radeon_cs_packet_next_is_pkt3_nop() - test if the next packet is P3 NOP
729 * @p: structure holding the parser context.
731 * Check if the next packet is NOP relocation packet3.
733 bool radeon_cs_packet_next_is_pkt3_nop(struct radeon_cs_parser
*p
)
735 struct radeon_cs_packet p3reloc
;
738 r
= radeon_cs_packet_parse(p
, &p3reloc
, p
->idx
);
741 if (p3reloc
.type
!= RADEON_PACKET_TYPE3
)
743 if (p3reloc
.opcode
!= RADEON_PACKET3_NOP
)
749 * radeon_cs_dump_packet() - dump raw packet context
750 * @p: structure holding the parser context.
751 * @pkt: structure holding the packet.
753 * Used mostly for debugging and error reporting.
755 void radeon_cs_dump_packet(struct radeon_cs_parser
*p
,
756 struct radeon_cs_packet
*pkt
)
758 volatile uint32_t *ib
;
764 for (i
= 0; i
<= (pkt
->count
+ 1); i
++, idx
++)
765 DRM_INFO("ib[%d]=0x%08X\n", idx
, ib
[idx
]);
769 * radeon_cs_packet_next_reloc() - parse next (should be reloc) packet
770 * @parser: parser structure holding parsing context.
771 * @data: pointer to relocation data
772 * @offset_start: starting offset
773 * @offset_mask: offset mask (to align start offset on)
774 * @reloc: reloc informations
776 * Check if next packet is relocation packet3, do bo validation and compute
777 * GPU offset using the provided start.
779 int radeon_cs_packet_next_reloc(struct radeon_cs_parser
*p
,
780 struct radeon_cs_reloc
**cs_reloc
,
783 struct radeon_cs_chunk
*relocs_chunk
;
784 struct radeon_cs_packet p3reloc
;
788 if (p
->chunk_relocs_idx
== -1) {
789 DRM_ERROR("No relocation chunk !\n");
793 relocs_chunk
= &p
->chunks
[p
->chunk_relocs_idx
];
794 r
= radeon_cs_packet_parse(p
, &p3reloc
, p
->idx
);
797 p
->idx
+= p3reloc
.count
+ 2;
798 if (p3reloc
.type
!= RADEON_PACKET_TYPE3
||
799 p3reloc
.opcode
!= RADEON_PACKET3_NOP
) {
800 DRM_ERROR("No packet3 for relocation for packet at %d.\n",
802 radeon_cs_dump_packet(p
, &p3reloc
);
805 idx
= radeon_get_ib_value(p
, p3reloc
.idx
+ 1);
806 if (idx
>= relocs_chunk
->length_dw
) {
807 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
808 idx
, relocs_chunk
->length_dw
);
809 radeon_cs_dump_packet(p
, &p3reloc
);
812 /* FIXME: we assume reloc size is 4 dwords */
814 *cs_reloc
= p
->relocs
;
815 (*cs_reloc
)->lobj
.gpu_offset
=
816 (u64
)relocs_chunk
->kdata
[idx
+ 3] << 32;
817 (*cs_reloc
)->lobj
.gpu_offset
|= relocs_chunk
->kdata
[idx
+ 0];
819 *cs_reloc
= p
->relocs_ptr
[(idx
/ 4)];