X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=arch%2Fx86%2Fkernel%2Fmicrocode_amd.c;h=e1af7c055c7d0c86c7e3a1fe789e597825185892;hb=474118d06d1d5053f27450224f0541219483ec69;hp=37542b67c57e4299738d609c3e44206be251304e;hpb=e69381b4175ba162229646f6753ff1d87c24d468;p=deliverable%2Flinux.git

diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c
index 37542b67c57e..e1af7c055c7d 100644
--- a/arch/x86/kernel/microcode_amd.c
+++ b/arch/x86/kernel/microcode_amd.c
@@ -36,9 +36,6 @@ MODULE_LICENSE("GPL v2");
 #define UCODE_EQUIV_CPU_TABLE_TYPE 0x00000000
 #define UCODE_UCODE_TYPE           0x00000001
 
-const struct firmware *firmware;
-static int supported_cpu;
-
 struct equiv_cpu_entry {
 	u32	installed_cpu;
 	u32	fixed_errata_mask;
@@ -77,12 +74,15 @@ static struct equiv_cpu_entry *equiv_cpu_table;
 
 static int collect_cpu_info_amd(int cpu, struct cpu_signature *csig)
 {
+	struct cpuinfo_x86 *c = &cpu_data(cpu);
 	u32 dummy;
 
-	if (!supported_cpu)
-		return -1;
-
 	memset(csig, 0, sizeof(*csig));
+	if (c->x86_vendor != X86_VENDOR_AMD || c->x86 < 0x10) {
+		pr_warning("microcode: CPU%d: AMD CPU family 0x%x not "
+			   "supported\n", cpu, c->x86);
+		return -1;
+	}
 	rdmsr(MSR_AMD64_PATCH_LEVEL, csig->rev, dummy);
 	pr_info("CPU%d: patch_level=0x%x\n", cpu, csig->rev);
 	return 0;
@@ -294,10 +294,14 @@ generic_load_microcode(int cpu, const u8 *data, size_t size)
 
 static enum ucode_state request_microcode_fw(int cpu, struct device *device)
 {
+	const char *fw_name = "amd-ucode/microcode_amd.bin";
+	const struct firmware *firmware;
 	enum ucode_state ret;
 
-	if (firmware == NULL)
+	if (request_firmware(&firmware, fw_name, device)) {
+		printk(KERN_ERR "microcode: failed to load file %s\n", fw_name);
 		return UCODE_NFOUND;
+	}
 
 	if (*(u32 *)firmware->data != UCODE_MAGIC) {
 		pr_err("invalid UCODE_MAGIC (0x%08x)\n",
@@ -307,6 +311,8 @@ static enum ucode_state request_microcode_fw(int cpu, struct device *device)
 
 	ret = generic_load_microcode(cpu, firmware->data, firmware->size);
 
+	release_firmware(firmware);
+
 	return ret;
 }
 
@@ -325,31 +331,7 @@ static void microcode_fini_cpu_amd(int cpu)
 	uci->mc = NULL;
 }
 
-void init_microcode_amd(struct device *device)
-{
-	const char *fw_name = "amd-ucode/microcode_amd.bin";
-	struct cpuinfo_x86 *c = &boot_cpu_data;
-
-	WARN_ON(c->x86_vendor != X86_VENDOR_AMD);
-
-	if (c->x86 < 0x10) {
-		pr_warning("AMD CPU family 0x%x not supported\n", c->x86);
-		return;
-	}
-	supported_cpu = 1;
-
-	if (request_firmware(&firmware, fw_name, device))
-		pr_err("failed to load file %s\n", fw_name);
-}
-
-void fini_microcode_amd(void)
-{
-	release_firmware(firmware);
-}
-
 static struct microcode_ops microcode_amd_ops = {
-	.init				  = init_microcode_amd,
-	.fini				  = fini_microcode_amd,
 	.request_microcode_user           = request_microcode_user,
 	.request_microcode_fw             = request_microcode_fw,
 	.collect_cpu_info                 = collect_cpu_info_amd,