270 static int check_register(struct host1x_firewall *fw, unsigned long offset)  in check_register()  argument
272 	if (!fw->job->is_addr_reg)  in check_register()
275 	if (fw->job->is_addr_reg(fw->dev, fw->class, offset)) {  in check_register()
276 		if (!fw->num_relocs)  in check_register()
279 		if (!check_reloc(fw->reloc, fw->cmdbuf, fw->offset))  in check_register()
282 		fw->num_relocs--;  in check_register()
283 		fw->reloc++;  in check_register()
289 static int check_class(struct host1x_firewall *fw, u32 class)  in check_class()  argument
291 	if (!fw->job->is_valid_class) {  in check_class()
292 		if (fw->class != class)  in check_class()
295 		if (!fw->job->is_valid_class(fw->class))  in check_class()
302 static int check_mask(struct host1x_firewall *fw)  in check_mask()  argument
304 	u32 mask = fw->mask;  in check_mask()
305 	u32 reg = fw->reg;  in check_mask()
309 		if (fw->words == 0)  in check_mask()
313 			ret = check_register(fw, reg);  in check_mask()
317 			fw->words--;  in check_mask()
318 			fw->offset++;  in check_mask()
327 static int check_incr(struct host1x_firewall *fw)  in check_incr()  argument
329 	u32 count = fw->count;  in check_incr()
330 	u32 reg = fw->reg;  in check_incr()
334 		if (fw->words == 0)  in check_incr()
337 		ret = check_register(fw, reg);  in check_incr()
342 		fw->words--;  in check_incr()
343 		fw->offset++;  in check_incr()
350 static int check_nonincr(struct host1x_firewall *fw)  in check_nonincr()  argument
352 	u32 count = fw->count;  in check_nonincr()
356 		if (fw->words == 0)  in check_nonincr()
359 		ret = check_register(fw, fw->reg);  in check_nonincr()
363 		fw->words--;  in check_nonincr()
364 		fw->offset++;  in check_nonincr()
371 static int validate(struct host1x_firewall *fw, struct host1x_job_gather *g)  in validate()  argument
373 	u32 *cmdbuf_base = (u32 *)fw->job->gather_copy_mapped +  in validate()
375 	u32 job_class = fw->class;  in validate()
378 	fw->words = g->words;  in validate()
379 	fw->cmdbuf = g->bo;  in validate()
380 	fw->offset = 0;  in validate()
382 	while (fw->words && !err) {  in validate()
383 		u32 word = cmdbuf_base[fw->offset];  in validate()
386 		fw->mask = 0;  in validate()
387 		fw->reg = 0;  in validate()
388 		fw->count = 0;  in validate()
389 		fw->words--;  in validate()
390 		fw->offset++;  in validate()
394 			fw->class = word >> 6 & 0x3ff;  in validate()
395 			fw->mask = word & 0x3f;  in validate()
396 			fw->reg = word >> 16 & 0xfff;  in validate()
397 			err = check_class(fw, job_class);  in validate()
399 				err = check_mask(fw);  in validate()
404 			fw->reg = word >> 16 & 0xfff;  in validate()
405 			fw->count = word & 0xffff;  in validate()
406 			err = check_incr(fw);  in validate()
412 			fw->reg = word >> 16 & 0xfff;  in validate()
413 			fw->count = word & 0xffff;  in validate()
414 			err = check_nonincr(fw);  in validate()
420 			fw->mask = word & 0xffff;  in validate()
421 			fw->reg = word >> 16 & 0xfff;  in validate()
422 			err = check_mask(fw);  in validate()
441 	struct host1x_firewall fw;  in copy_gathers()  local
446 	fw.job = job;  in copy_gathers()
447 	fw.dev = dev;  in copy_gathers()
448 	fw.reloc = job->relocs;  in copy_gathers()
449 	fw.num_relocs = job->num_relocs;  in copy_gathers()
450 	fw.class = job->class;  in copy_gathers()
490 		if (validate(&fw, g))  in copy_gathers()
497 	if (fw.num_relocs)  in copy_gathers()