x86, microcode: Move to a proper location

We've grown a bunch of microcode loader files all prefixed with
"microcode_". They should be under cpu/ because this is strictly
CPU-related functionality so do that and drop the prefix since they're
in their own directory now which gives that prefix. :)

While at it, drop MICROCODE_INTEL_LIB config item and stash the
functionality under CONFIG_MICROCODE_INTEL as it was its only user.

Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>

1 files changed, 0 insertions, 174 deletions

diff --git a/arch/x86/kernel/microcode_intel_lib.c b/arch/x86/kernel/microcode_intel_lib.c
deleted file mode 100644
index ce69320d017..00000000000
--- a/arch/x86/kernel/microcode_intel_lib.c
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- *	Intel CPU Microcode Update Driver for Linux
- *
- *	Copyright (C) 2012 Fenghua Yu <fenghua.yu@intel.com>
- *			   H Peter Anvin" <hpa@zytor.com>
- *
- *	This driver allows to upgrade microcode on Intel processors
- *	belonging to IA-32 family - PentiumPro, Pentium II,
- *	Pentium III, Xeon, Pentium 4, etc.
- *
- *	Reference: Section 8.11 of Volume 3a, IA-32 Intel? Architecture
- *	Software Developer's Manual
- *	Order Number 253668 or free download from:
- *
- *	http://developer.intel.com/Assets/PDF/manual/253668.pdf
- *
- *	For more information, go to http://www.urbanmyth.org/microcode
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
- *
- */
-#include <linux/firmware.h>
-#include <linux/uaccess.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-
-#include <asm/microcode_intel.h>
-#include <asm/processor.h>
-#include <asm/msr.h>
-
-static inline int
-update_match_cpu(unsigned int csig, unsigned int cpf,
-		 unsigned int sig, unsigned int pf)
-{
-	return (!sigmatch(sig, csig, pf, cpf)) ? 0 : 1;
-}
-
-int
-update_match_revision(struct microcode_header_intel *mc_header, int rev)
-{
-	return (mc_header->rev <= rev) ? 0 : 1;
-}
-
-int microcode_sanity_check(void *mc, int print_err)
-{
-	unsigned long total_size, data_size, ext_table_size;
-	struct microcode_header_intel *mc_header = mc;
-	struct extended_sigtable *ext_header = NULL;
-	int sum, orig_sum, ext_sigcount = 0, i;
-	struct extended_signature *ext_sig;
-
-	total_size = get_totalsize(mc_header);
-	data_size = get_datasize(mc_header);
-
-	if (data_size + MC_HEADER_SIZE > total_size) {
-		if (print_err)
-			pr_err("error! Bad data size in microcode data file\n");
-		return -EINVAL;
-	}
-
-	if (mc_header->ldrver != 1 || mc_header->hdrver != 1) {
-		if (print_err)
-			pr_err("error! Unknown microcode update format\n");
-		return -EINVAL;
-	}
-	ext_table_size = total_size - (MC_HEADER_SIZE + data_size);
-	if (ext_table_size) {
-		if ((ext_table_size < EXT_HEADER_SIZE)
-		 || ((ext_table_size - EXT_HEADER_SIZE) % EXT_SIGNATURE_SIZE)) {
-			if (print_err)
-				pr_err("error! Small exttable size in microcode data file\n");
-			return -EINVAL;
-		}
-		ext_header = mc + MC_HEADER_SIZE + data_size;
-		if (ext_table_size != exttable_size(ext_header)) {
-			if (print_err)
-				pr_err("error! Bad exttable size in microcode data file\n");
-			return -EFAULT;
-		}
-		ext_sigcount = ext_header->count;
-	}
-
-	/* check extended table checksum */
-	if (ext_table_size) {
-		int ext_table_sum = 0;
-		int *ext_tablep = (int *)ext_header;
-
-		i = ext_table_size / DWSIZE;
-		while (i--)
-			ext_table_sum += ext_tablep[i];
-		if (ext_table_sum) {
-			if (print_err)
-				pr_warn("aborting, bad extended signature table checksum\n");
-			return -EINVAL;
-		}
-	}
-
-	/* calculate the checksum */
-	orig_sum = 0;
-	i = (MC_HEADER_SIZE + data_size) / DWSIZE;
-	while (i--)
-		orig_sum += ((int *)mc)[i];
-	if (orig_sum) {
-		if (print_err)
-			pr_err("aborting, bad checksum\n");
-		return -EINVAL;
-	}
-	if (!ext_table_size)
-		return 0;
-	/* check extended signature checksum */
-	for (i = 0; i < ext_sigcount; i++) {
-		ext_sig = (void *)ext_header + EXT_HEADER_SIZE +
-			  EXT_SIGNATURE_SIZE * i;
-		sum = orig_sum
-			- (mc_header->sig + mc_header->pf + mc_header->cksum)
-			+ (ext_sig->sig + ext_sig->pf + ext_sig->cksum);
-		if (sum) {
-			if (print_err)
-				pr_err("aborting, bad checksum\n");
-			return -EINVAL;
-		}
-	}
-	return 0;
-}
-EXPORT_SYMBOL_GPL(microcode_sanity_check);
-
-/*
- * return 0 - no update found
- * return 1 - found update
- */
-int get_matching_sig(unsigned int csig, int cpf, void *mc, int rev)
-{
-	struct microcode_header_intel *mc_header = mc;
-	struct extended_sigtable *ext_header;
-	unsigned long total_size = get_totalsize(mc_header);
-	int ext_sigcount, i;
-	struct extended_signature *ext_sig;
-
-	if (update_match_cpu(csig, cpf, mc_header->sig, mc_header->pf))
-		return 1;
-
-	/* Look for ext. headers: */
-	if (total_size <= get_datasize(mc_header) + MC_HEADER_SIZE)
-		return 0;
-
-	ext_header = mc + get_datasize(mc_header) + MC_HEADER_SIZE;
-	ext_sigcount = ext_header->count;
-	ext_sig = (void *)ext_header + EXT_HEADER_SIZE;
-
-	for (i = 0; i < ext_sigcount; i++) {
-		if (update_match_cpu(csig, cpf, ext_sig->sig, ext_sig->pf))
-			return 1;
-		ext_sig++;
-	}
-	return 0;
-}
-
-/*
- * return 0 - no update found
- * return 1 - found update
- */
-int get_matching_microcode(unsigned int csig, int cpf, void *mc, int rev)
-{
-	struct microcode_header_intel *mc_header = mc;
-
-	if (!update_match_revision(mc_header, rev))
-		return 0;
-
-	return get_matching_sig(csig, cpf, mc, rev);
-}
-EXPORT_SYMBOL_GPL(get_matching_microcode);