355 static int check_register(struct host1x_firewall *fw, unsigned long offset)  in check_register()  argument
357 	if (!fw->job->is_addr_reg)  in check_register()
360 	if (fw->job->is_addr_reg(fw->dev, fw->class, offset)) {  in check_register()
361 		if (!fw->num_relocs)  in check_register()
364 		if (!check_reloc(fw->reloc, fw->cmdbuf, fw->offset))  in check_register()
367 		fw->num_relocs--;  in check_register()
368 		fw->reloc++;  in check_register()
374 static int check_class(struct host1x_firewall *fw, u32 class)  in check_class()  argument
376 	if (!fw->job->is_valid_class) {  in check_class()
377 		if (fw->class != class)  in check_class()
380 		if (!fw->job->is_valid_class(fw->class))  in check_class()
387 static int check_mask(struct host1x_firewall *fw)  in check_mask()  argument
389 	u32 mask = fw->mask;  in check_mask()
390 	u32 reg = fw->reg;  in check_mask()
394 		if (fw->words == 0)  in check_mask()
398 			ret = check_register(fw, reg);  in check_mask()
402 			fw->words--;  in check_mask()
403 			fw->offset++;  in check_mask()
412 static int check_incr(struct host1x_firewall *fw)  in check_incr()  argument
414 	u32 count = fw->count;  in check_incr()
415 	u32 reg = fw->reg;  in check_incr()
419 		if (fw->words == 0)  in check_incr()
422 		ret = check_register(fw, reg);  in check_incr()
427 		fw->words--;  in check_incr()
428 		fw->offset++;  in check_incr()
435 static int check_nonincr(struct host1x_firewall *fw)  in check_nonincr()  argument
437 	u32 count = fw->count;  in check_nonincr()
441 		if (fw->words == 0)  in check_nonincr()
444 		ret = check_register(fw, fw->reg);  in check_nonincr()
448 		fw->words--;  in check_nonincr()
449 		fw->offset++;  in check_nonincr()
456 static int validate(struct host1x_firewall *fw, struct host1x_job_gather *g)  in validate()  argument
458 	u32 *cmdbuf_base = (u32 *)fw->job->gather_copy_mapped +  in validate()
460 	u32 job_class = fw->class;  in validate()
463 	fw->words = g->words;  in validate()
464 	fw->cmdbuf = g->bo;  in validate()
465 	fw->offset = 0;  in validate()
467 	while (fw->words && !err) {  in validate()
468 		u32 word = cmdbuf_base[fw->offset];  in validate()
471 		fw->mask = 0;  in validate()
472 		fw->reg = 0;  in validate()
473 		fw->count = 0;  in validate()
474 		fw->words--;  in validate()
475 		fw->offset++;  in validate()
479 			fw->class = word >> 6 & 0x3ff;  in validate()
480 			fw->mask = word & 0x3f;  in validate()
481 			fw->reg = word >> 16 & 0xfff;  in validate()
482 			err = check_class(fw, job_class);  in validate()
484 				err = check_mask(fw);  in validate()
489 			fw->reg = word >> 16 & 0xfff;  in validate()
490 			fw->count = word & 0xffff;  in validate()
491 			err = check_incr(fw);  in validate()
497 			fw->reg = word >> 16 & 0xfff;  in validate()
498 			fw->count = word & 0xffff;  in validate()
499 			err = check_nonincr(fw);  in validate()
505 			fw->mask = word & 0xffff;  in validate()
506 			fw->reg = word >> 16 & 0xfff;  in validate()
507 			err = check_mask(fw);  in validate()
527 	struct host1x_firewall fw;  in copy_gathers()  local
532 	fw.job = job;  in copy_gathers()
533 	fw.dev = dev;  in copy_gathers()
534 	fw.reloc = job->relocs;  in copy_gathers()
535 	fw.num_relocs = job->num_relocs;  in copy_gathers()
536 	fw.class = job->class;  in copy_gathers()
585 		if (validate(&fw, g))  in copy_gathers()
592 	if (fw.num_relocs)  in copy_gathers()