152 static int __init smp_check_mpc(struct mpc_table *mpc, char *oem, char *str)  in smp_check_mpc()  argument
155 	if (memcmp(mpc->signature, MPC_SIGNATURE, 4)) {  in smp_check_mpc()
157 		       mpc->signature[0], mpc->signature[1],  in smp_check_mpc()
158 		       mpc->signature[2], mpc->signature[3]);  in smp_check_mpc()
161 	if (mpf_checksum((unsigned char *)mpc, mpc->length)) {  in smp_check_mpc()
165 	if (mpc->spec != 0x01 && mpc->spec != 0x04) {  in smp_check_mpc()
166 		pr_err("MPTABLE: bad table version (%d)!!\n", mpc->spec);  in smp_check_mpc()
169 	if (!mpc->lapic) {  in smp_check_mpc()
173 	memcpy(oem, mpc->oem, 8);  in smp_check_mpc()
177 	memcpy(str, mpc->productid, 12);  in smp_check_mpc()
182 	pr_info("MPTABLE: APIC at: 0x%X\n", mpc->lapic);  in smp_check_mpc()
193 static void __init smp_dump_mptable(struct mpc_table *mpc, unsigned char *mpt)  in smp_dump_mptable()  argument
198 			1, mpc, mpc->length, 1);  in smp_dump_mptable()
201 void __init default_smp_read_mpc_oem(struct mpc_table *mpc) { }  in default_smp_read_mpc_oem()  argument
203 static int __init smp_read_mpc(struct mpc_table *mpc, unsigned early)  in smp_read_mpc()  argument
208 	int count = sizeof(*mpc);  in smp_read_mpc()
209 	unsigned char *mpt = ((unsigned char *)mpc) + count;  in smp_read_mpc()
211 	if (!smp_check_mpc(mpc, oem, str))  in smp_read_mpc()
216 		register_lapic_address(mpc->lapic);  in smp_read_mpc()
221 	if (mpc->oemptr)  in smp_read_mpc()
222 		x86_init.mpparse.smp_read_mpc_oem(mpc);  in smp_read_mpc()
229 	while (count < mpc->length) {  in smp_read_mpc()
255 			smp_dump_mptable(mpc, mpt);  in smp_read_mpc()
256 			count = mpc->length;  in smp_read_mpc()
437 	struct mpc_table *mpc;  in get_mpc_size()  local
440 	mpc = early_ioremap(physptr, PAGE_SIZE);  in get_mpc_size()
441 	size = mpc->length;  in get_mpc_size()
442 	early_iounmap(mpc, PAGE_SIZE);  in get_mpc_size()
450 	struct mpc_table *mpc;  in check_physptr()  local
454 	mpc = early_ioremap(mpf->physptr, size);  in check_physptr()
459 	if (!smp_read_mpc(mpc, early)) {  in check_physptr()
465 		early_iounmap(mpc, size);  in check_physptr()
468 	early_iounmap(mpc, size);  in check_physptr()
723 static int  __init replace_intsrc_all(struct mpc_table *mpc,  in replace_intsrc_all()  argument
730 	int count = sizeof(*mpc);  in replace_intsrc_all()
732 	unsigned char *mpt = ((unsigned char *)mpc) + count;  in replace_intsrc_all()
734 	pr_info("mpc_length %x\n", mpc->length);  in replace_intsrc_all()
735 	while (count < mpc->length) {  in replace_intsrc_all()
755 			smp_dump_mptable(mpc, mpt);  in replace_intsrc_all()
782 			mpc->length = count;  in replace_intsrc_all()
790 	mpc->checksum = 0;  in replace_intsrc_all()
791 	mpc->checksum -= mpf_checksum((unsigned char *)mpc, mpc->length);  in replace_intsrc_all()
838 	struct mpc_table *mpc, *mpc_new;  in update_mp_table()  local
856 	mpc = phys_to_virt(mpf->physptr);  in update_mp_table()
858 	if (!smp_check_mpc(mpc, oem, str))  in update_mp_table()
864 	if (mpc_new_phys && mpc->length > mpc_new_length) {  in update_mp_table()
873 		mpc->checksum = 0;  in update_mp_table()
874 		old = mpf_checksum((unsigned char *)mpc, mpc->length);  in update_mp_table()
875 		mpc->checksum = 0xff;  in update_mp_table()
876 		new = mpf_checksum((unsigned char *)mpc, mpc->length);  in update_mp_table()
885 		memcpy(mpc_new, mpc, mpc->length);  in update_mp_table()
886 		mpc = mpc_new;  in update_mp_table()
908 	replace_intsrc_all(mpc, mpc_new_phys, mpc_new_length);  in update_mp_table()