349 static int check_register(struct host1x_firewall *fw, unsigned long offset)  in check_register()  argument
351 	if (!fw->job->is_addr_reg)  in check_register()
354 	if (fw->job->is_addr_reg(fw->dev, fw->class, offset)) {  in check_register()
355 		if (!fw->num_relocs)  in check_register()
358 		if (!check_reloc(fw->reloc, fw->cmdbuf, fw->offset))  in check_register()
361 		fw->num_relocs--;  in check_register()
362 		fw->reloc++;  in check_register()
368 static int check_class(struct host1x_firewall *fw, u32 class)  in check_class()  argument
370 	if (!fw->job->is_valid_class) {  in check_class()
371 		if (fw->class != class)  in check_class()
374 		if (!fw->job->is_valid_class(fw->class))  in check_class()
381 static int check_mask(struct host1x_firewall *fw)  in check_mask()  argument
383 	u32 mask = fw->mask;  in check_mask()
384 	u32 reg = fw->reg;  in check_mask()
388 		if (fw->words == 0)  in check_mask()
392 			ret = check_register(fw, reg);  in check_mask()
396 			fw->words--;  in check_mask()
397 			fw->offset++;  in check_mask()
406 static int check_incr(struct host1x_firewall *fw)  in check_incr()  argument
408 	u32 count = fw->count;  in check_incr()
409 	u32 reg = fw->reg;  in check_incr()
413 		if (fw->words == 0)  in check_incr()
416 		ret = check_register(fw, reg);  in check_incr()
421 		fw->words--;  in check_incr()
422 		fw->offset++;  in check_incr()
429 static int check_nonincr(struct host1x_firewall *fw)  in check_nonincr()  argument
431 	u32 count = fw->count;  in check_nonincr()
435 		if (fw->words == 0)  in check_nonincr()
438 		ret = check_register(fw, fw->reg);  in check_nonincr()
442 		fw->words--;  in check_nonincr()
443 		fw->offset++;  in check_nonincr()
450 static int validate(struct host1x_firewall *fw, struct host1x_job_gather *g)  in validate()  argument
452 	u32 *cmdbuf_base = (u32 *)fw->job->gather_copy_mapped +  in validate()
454 	u32 job_class = fw->class;  in validate()
457 	fw->words = g->words;  in validate()
458 	fw->cmdbuf = g->bo;  in validate()
459 	fw->offset = 0;  in validate()
461 	while (fw->words && !err) {  in validate()
462 		u32 word = cmdbuf_base[fw->offset];  in validate()
465 		fw->mask = 0;  in validate()
466 		fw->reg = 0;  in validate()
467 		fw->count = 0;  in validate()
468 		fw->words--;  in validate()
469 		fw->offset++;  in validate()
473 			fw->class = word >> 6 & 0x3ff;  in validate()
474 			fw->mask = word & 0x3f;  in validate()
475 			fw->reg = word >> 16 & 0xfff;  in validate()
476 			err = check_class(fw, job_class);  in validate()
478 				err = check_mask(fw);  in validate()
483 			fw->reg = word >> 16 & 0xfff;  in validate()
484 			fw->count = word & 0xffff;  in validate()
485 			err = check_incr(fw);  in validate()
491 			fw->reg = word >> 16 & 0xfff;  in validate()
492 			fw->count = word & 0xffff;  in validate()
493 			err = check_nonincr(fw);  in validate()
499 			fw->mask = word & 0xffff;  in validate()
500 			fw->reg = word >> 16 & 0xfff;  in validate()
501 			err = check_mask(fw);  in validate()
521 	struct host1x_firewall fw;  in copy_gathers()  local
526 	fw.job = job;  in copy_gathers()
527 	fw.dev = dev;  in copy_gathers()
528 	fw.reloc = job->relocs;  in copy_gathers()
529 	fw.num_relocs = job->num_relocs;  in copy_gathers()
530 	fw.class = job->class;  in copy_gathers()
579 		if (validate(&fw, g))  in copy_gathers()
586 	if (fw.num_relocs)  in copy_gathers()