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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-10 16:13:06 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-10 16:13:06 -0700
commit48c72d1ab4ec86789a23aed0b0b5f31ac083c0c6 (patch)
tree6c2f5e46ad0f309505e3d39dda33a8b620b8db1b /arch/x86/include/asm
parent5301e0de34a29625c06b8eef115c1a9b4c1f72b1 (diff)
parentaeef50bc0483fa70ce0bddb686ec84a274b7f3d4 (diff)
Merge branch 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, microcode: Simplify vfree() use x86: microcode: use smp_call_function_single instead of set_cpus_allowed, cleanup of synchronization logic
Diffstat (limited to 'arch/x86/include/asm')
-rw-r--r--arch/x86/include/asm/microcode.h25
1 files changed, 18 insertions, 7 deletions
diff --git a/arch/x86/include/asm/microcode.h b/arch/x86/include/asm/microcode.h
index c882664716c..ef51b501e22 100644
--- a/arch/x86/include/asm/microcode.h
+++ b/arch/x86/include/asm/microcode.h
@@ -9,20 +9,31 @@ struct cpu_signature {
struct device;
+enum ucode_state { UCODE_ERROR, UCODE_OK, UCODE_NFOUND };
+
struct microcode_ops {
- int (*request_microcode_user) (int cpu, const void __user *buf, size_t size);
- int (*request_microcode_fw) (int cpu, struct device *device);
+ enum ucode_state (*request_microcode_user) (int cpu,
+ const void __user *buf, size_t size);
- void (*apply_microcode) (int cpu);
+ enum ucode_state (*request_microcode_fw) (int cpu,
+ struct device *device);
- int (*collect_cpu_info) (int cpu, struct cpu_signature *csig);
void (*microcode_fini_cpu) (int cpu);
+
+ /*
+ * The generic 'microcode_core' part guarantees that
+ * the callbacks below run on a target cpu when they
+ * are being called.
+ * See also the "Synchronization" section in microcode_core.c.
+ */
+ int (*apply_microcode) (int cpu);
+ int (*collect_cpu_info) (int cpu, struct cpu_signature *csig);
};
struct ucode_cpu_info {
- struct cpu_signature cpu_sig;
- int valid;
- void *mc;
+ struct cpu_signature cpu_sig;
+ int valid;
+ void *mc;
};
extern struct ucode_cpu_info ucode_cpu_info[];