157 static int __init smp_check_mpc(struct mpc_table *mpc, char *oem, char *str)  in smp_check_mpc()  argument
160 	if (memcmp(mpc->signature, MPC_SIGNATURE, 4)) {  in smp_check_mpc()
162 		       mpc->signature[0], mpc->signature[1],  in smp_check_mpc()
163 		       mpc->signature[2], mpc->signature[3]);  in smp_check_mpc()
166 	if (mpf_checksum((unsigned char *)mpc, mpc->length)) {  in smp_check_mpc()
170 	if (mpc->spec != 0x01 && mpc->spec != 0x04) {  in smp_check_mpc()
171 		pr_err("MPTABLE: bad table version (%d)!!\n", mpc->spec);  in smp_check_mpc()
174 	if (!mpc->lapic) {  in smp_check_mpc()
178 	memcpy(oem, mpc->oem, 8);  in smp_check_mpc()
182 	memcpy(str, mpc->productid, 12);  in smp_check_mpc()
187 	pr_info("MPTABLE: APIC at: 0x%X\n", mpc->lapic);  in smp_check_mpc()
198 static void __init smp_dump_mptable(struct mpc_table *mpc, unsigned char *mpt)  in smp_dump_mptable()  argument
203 			1, mpc, mpc->length, 1);  in smp_dump_mptable()
206 void __init default_smp_read_mpc_oem(struct mpc_table *mpc) { }  in default_smp_read_mpc_oem()  argument
208 static int __init smp_read_mpc(struct mpc_table *mpc, unsigned early)  in smp_read_mpc()  argument
213 	int count = sizeof(*mpc);  in smp_read_mpc()
214 	unsigned char *mpt = ((unsigned char *)mpc) + count;  in smp_read_mpc()
216 	if (!smp_check_mpc(mpc, oem, str))  in smp_read_mpc()
221 		register_lapic_address(mpc->lapic);  in smp_read_mpc()
226 	if (mpc->oemptr)  in smp_read_mpc()
227 		x86_init.mpparse.smp_read_mpc_oem(mpc);  in smp_read_mpc()
234 	while (count < mpc->length) {  in smp_read_mpc()
260 			smp_dump_mptable(mpc, mpt);  in smp_read_mpc()
261 			count = mpc->length;  in smp_read_mpc()
442 	struct mpc_table *mpc;  in get_mpc_size()  local
445 	mpc = early_ioremap(physptr, PAGE_SIZE);  in get_mpc_size()
446 	size = mpc->length;  in get_mpc_size()
447 	early_iounmap(mpc, PAGE_SIZE);  in get_mpc_size()
455 	struct mpc_table *mpc;  in check_physptr()  local
459 	mpc = early_ioremap(mpf->physptr, size);  in check_physptr()
464 	if (!smp_read_mpc(mpc, early)) {  in check_physptr()
470 		early_iounmap(mpc, size);  in check_physptr()
473 	early_iounmap(mpc, size);  in check_physptr()
728 static int  __init replace_intsrc_all(struct mpc_table *mpc,  in replace_intsrc_all()  argument
735 	int count = sizeof(*mpc);  in replace_intsrc_all()
737 	unsigned char *mpt = ((unsigned char *)mpc) + count;  in replace_intsrc_all()
739 	pr_info("mpc_length %x\n", mpc->length);  in replace_intsrc_all()
740 	while (count < mpc->length) {  in replace_intsrc_all()
760 			smp_dump_mptable(mpc, mpt);  in replace_intsrc_all()
787 			mpc->length = count;  in replace_intsrc_all()
795 	mpc->checksum = 0;  in replace_intsrc_all()
796 	mpc->checksum -= mpf_checksum((unsigned char *)mpc, mpc->length);  in replace_intsrc_all()
843 	struct mpc_table *mpc, *mpc_new;  in update_mp_table()  local
861 	mpc = phys_to_virt(mpf->physptr);  in update_mp_table()
863 	if (!smp_check_mpc(mpc, oem, str))  in update_mp_table()
869 	if (mpc_new_phys && mpc->length > mpc_new_length) {  in update_mp_table()
878 		mpc->checksum = 0;  in update_mp_table()
879 		old = mpf_checksum((unsigned char *)mpc, mpc->length);  in update_mp_table()
880 		mpc->checksum = 0xff;  in update_mp_table()
881 		new = mpf_checksum((unsigned char *)mpc, mpc->length);  in update_mp_table()
890 		memcpy(mpc_new, mpc, mpc->length);  in update_mp_table()
891 		mpc = mpc_new;  in update_mp_table()
913 	replace_intsrc_all(mpc, mpc_new_phys, mpc_new_length);  in update_mp_table()