job.c (0f563a4bf66e5182f0882efee398f7e6bc0bb1be) job.c (a47ac10e6e628740dd122d650afd193941f4770b)
1/*
2 * Tegra host1x Job
3 *
4 * Copyright (c) 2010-2015, NVIDIA Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.

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26#include <linux/vmalloc.h>
27#include <trace/events/host1x.h>
28
29#include "channel.h"
30#include "dev.h"
31#include "job.h"
32#include "syncpt.h"
33
1/*
2 * Tegra host1x Job
3 *
4 * Copyright (c) 2010-2015, NVIDIA Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.

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26#include <linux/vmalloc.h>
27#include <trace/events/host1x.h>
28
29#include "channel.h"
30#include "dev.h"
31#include "job.h"
32#include "syncpt.h"
33
34#define HOST1X_WAIT_SYNCPT_OFFSET 0x8
35
34struct host1x_job *host1x_job_alloc(struct host1x_channel *ch,
35 u32 num_cmdbufs, u32 num_relocs,
36 u32 num_waitchks)
37{
38 struct host1x_job *job = NULL;
39 unsigned int num_unpins = num_cmdbufs + num_relocs;
40 u64 total;
41 void *mem;

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332
333 /* relocation shift value validation isn't implemented yet */
334 if (reloc->shift)
335 return false;
336
337 return true;
338}
339
36struct host1x_job *host1x_job_alloc(struct host1x_channel *ch,
37 u32 num_cmdbufs, u32 num_relocs,
38 u32 num_waitchks)
39{
40 struct host1x_job *job = NULL;
41 unsigned int num_unpins = num_cmdbufs + num_relocs;
42 u64 total;
43 void *mem;

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334
335 /* relocation shift value validation isn't implemented yet */
336 if (reloc->shift)
337 return false;
338
339 return true;
340}
341
342static bool check_wait(struct host1x_waitchk *wait, struct host1x_bo *cmdbuf,
343 unsigned int offset)
344{
345 offset *= sizeof(u32);
346
347 if (wait->bo != cmdbuf || wait->offset != offset)
348 return false;
349
350 return true;
351}
352
340struct host1x_firewall {
341 struct host1x_job *job;
342 struct device *dev;
343
344 unsigned int num_relocs;
345 struct host1x_reloc *reloc;
346
353struct host1x_firewall {
354 struct host1x_job *job;
355 struct device *dev;
356
357 unsigned int num_relocs;
358 struct host1x_reloc *reloc;
359
360 unsigned int num_waitchks;
361 struct host1x_waitchk *waitchk;
362
347 struct host1x_bo *cmdbuf;
348 unsigned int offset;
349
350 u32 words;
351 u32 class;
352 u32 reg;
353 u32 mask;
354 u32 count;

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365
366 if (!check_reloc(fw->reloc, fw->cmdbuf, fw->offset))
367 return -EINVAL;
368
369 fw->num_relocs--;
370 fw->reloc++;
371 }
372
363 struct host1x_bo *cmdbuf;
364 unsigned int offset;
365
366 u32 words;
367 u32 class;
368 u32 reg;
369 u32 mask;
370 u32 count;

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381
382 if (!check_reloc(fw->reloc, fw->cmdbuf, fw->offset))
383 return -EINVAL;
384
385 fw->num_relocs--;
386 fw->reloc++;
387 }
388
389 if (offset == HOST1X_WAIT_SYNCPT_OFFSET) {
390 if (fw->class != HOST1X_CLASS_HOST1X)
391 return -EINVAL;
392
393 if (!fw->num_waitchks)
394 return -EINVAL;
395
396 if (!check_wait(fw->waitchk, fw->cmdbuf, fw->offset))
397 return -EINVAL;
398
399 fw->num_waitchks--;
400 fw->waitchk++;
401 }
402
373 return 0;
374}
375
376static int check_class(struct host1x_firewall *fw, u32 class)
377{
378 if (!fw->job->is_valid_class) {
379 if (fw->class != class)
380 return -EINVAL;

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529 size_t size = 0;
530 size_t offset = 0;
531 int i;
532
533 fw.job = job;
534 fw.dev = dev;
535 fw.reloc = job->relocarray;
536 fw.num_relocs = job->num_relocs;
403 return 0;
404}
405
406static int check_class(struct host1x_firewall *fw, u32 class)
407{
408 if (!fw->job->is_valid_class) {
409 if (fw->class != class)
410 return -EINVAL;

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559 size_t size = 0;
560 size_t offset = 0;
561 int i;
562
563 fw.job = job;
564 fw.dev = dev;
565 fw.reloc = job->relocarray;
566 fw.num_relocs = job->num_relocs;
567 fw.waitchk = job->waitchk;
568 fw.num_waitchks = job->num_waitchk;
537 fw.class = job->class;
538
539 for (i = 0; i < job->num_gathers; i++) {
540 struct host1x_job_gather *g = &job->gathers[i];
541
542 size += g->words * sizeof(u32);
543 }
544

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567
568 /* Validate the job */
569 if (validate(&fw, g))
570 return -EINVAL;
571
572 offset += g->words * sizeof(u32);
573 }
574
569 fw.class = job->class;
570
571 for (i = 0; i < job->num_gathers; i++) {
572 struct host1x_job_gather *g = &job->gathers[i];
573
574 size += g->words * sizeof(u32);
575 }
576

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599
600 /* Validate the job */
601 if (validate(&fw, g))
602 return -EINVAL;
603
604 offset += g->words * sizeof(u32);
605 }
606
575 /* No relocs should remain at this point */
576 if (fw.num_relocs)
607 /* No relocs and waitchks should remain at this point */
608 if (fw.num_relocs || fw.num_waitchks)
577 return -EINVAL;
578
579 return 0;
580}
581
582int host1x_job_pin(struct host1x_job *job, struct device *dev)
583{
584 int err;

--- 103 unchanged lines hidden --- 		609 return -EINVAL;
610
611 return 0;
612}
613
614int host1x_job_pin(struct host1x_job *job, struct device *dev)
615{
616 int err;

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