298 static int check_register(struct host1x_firewall *fw, unsigned long offset)  in check_register()  argument
300 	if (fw->job->is_addr_reg(fw->dev, fw->class, offset)) {  in check_register()
301 		if (!fw->num_relocs)  in check_register()
304 		if (!check_reloc(fw->reloc, fw->cmdbuf, fw->offset))  in check_register()
307 		fw->num_relocs--;  in check_register()
308 		fw->reloc++;  in check_register()
314 static int check_mask(struct host1x_firewall *fw)  in check_mask()  argument
316 	u32 mask = fw->mask;  in check_mask()
317 	u32 reg = fw->reg;  in check_mask()
321 		if (fw->words == 0)  in check_mask()
325 			ret = check_register(fw, reg);  in check_mask()
329 			fw->words--;  in check_mask()
330 			fw->offset++;  in check_mask()
339 static int check_incr(struct host1x_firewall *fw)  in check_incr()  argument
341 	u32 count = fw->count;  in check_incr()
342 	u32 reg = fw->reg;  in check_incr()
346 		if (fw->words == 0)  in check_incr()
349 		ret = check_register(fw, reg);  in check_incr()
354 		fw->words--;  in check_incr()
355 		fw->offset++;  in check_incr()
362 static int check_nonincr(struct host1x_firewall *fw)  in check_nonincr()  argument
364 	u32 count = fw->count;  in check_nonincr()
368 		if (fw->words == 0)  in check_nonincr()
371 		ret = check_register(fw, fw->reg);  in check_nonincr()
375 		fw->words--;  in check_nonincr()
376 		fw->offset++;  in check_nonincr()
383 static int validate(struct host1x_firewall *fw, struct host1x_job_gather *g)  in validate()  argument
385 	u32 *cmdbuf_base = (u32 *)fw->job->gather_copy_mapped +  in validate()
389 	if (!fw->job->is_addr_reg)  in validate()
392 	fw->words = g->words;  in validate()
393 	fw->cmdbuf = g->bo;  in validate()
394 	fw->offset = 0;  in validate()
396 	while (fw->words && !err) {  in validate()
397 		u32 word = cmdbuf_base[fw->offset];  in validate()
400 		fw->mask = 0;  in validate()
401 		fw->reg = 0;  in validate()
402 		fw->count = 0;  in validate()
403 		fw->words--;  in validate()
404 		fw->offset++;  in validate()
408 			fw->class = word >> 6 & 0x3ff;  in validate()
409 			fw->mask = word & 0x3f;  in validate()
410 			fw->reg = word >> 16 & 0xfff;  in validate()
411 			err = check_mask(fw);  in validate()
416 			fw->reg = word >> 16 & 0xfff;  in validate()
417 			fw->count = word & 0xffff;  in validate()
418 			err = check_incr(fw);  in validate()
424 			fw->reg = word >> 16 & 0xfff;  in validate()
425 			fw->count = word & 0xffff;  in validate()
426 			err = check_nonincr(fw);  in validate()
432 			fw->mask = word & 0xffff;  in validate()
433 			fw->reg = word >> 16 & 0xfff;  in validate()
434 			err = check_mask(fw);  in validate()
454 	struct host1x_firewall fw;  in copy_gathers()  local
459 	fw.job = job;  in copy_gathers()
460 	fw.dev = dev;  in copy_gathers()
461 	fw.reloc = job->relocarray;  in copy_gathers()
462 	fw.num_relocs = job->num_relocs;  in copy_gathers()
463 	fw.class = 0;  in copy_gathers()
495 		if (validate(&fw, g))  in copy_gathers()
502 	if (fw.num_relocs)  in copy_gathers()