proc: warn on non-existing proc entries

[safe/jmp/linux-2.6] / arch / x86 / lib / msr.c

diff --git a/arch/x86/lib/msr.c b/arch/x86/lib/msr.c
index 8728341..8f8eebd 100644 (file)
--- a/arch/x86/lib/msr.c
+++ b/arch/x86/lib/msr.c
@@ -1,123 +1,7 @@
 #include <linux/module.h>
 #include <linux/preempt.h>
-#include <linux/smp.h>
 #include <asm/msr.h>
 
-struct msr_info {
-       u32 msr_no;
-       struct msr reg;
-       struct msr *msrs;
-       int err;
-};
-
-static void __rdmsr_on_cpu(void *info)
-{
-       struct msr_info *rv = info;
-       struct msr *reg;
-       int this_cpu = raw_smp_processor_id();
-
-       if (rv->msrs)
-               reg = per_cpu_ptr(rv->msrs, this_cpu);
-       else
-               reg = &rv->reg;
-
-       rdmsr(rv->msr_no, reg->l, reg->h);
-}
-
-static void __wrmsr_on_cpu(void *info)
-{
-       struct msr_info *rv = info;
-       struct msr *reg;
-       int this_cpu = raw_smp_processor_id();
-
-       if (rv->msrs)
-               reg = per_cpu_ptr(rv->msrs, this_cpu);
-       else
-               reg = &rv->reg;
-
-       wrmsr(rv->msr_no, reg->l, reg->h);
-}
-
-int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
-{
-       int err;
-       struct msr_info rv;
-
-       memset(&rv, 0, sizeof(rv));
-
-       rv.msr_no = msr_no;
-       err = smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 1);
-       *l = rv.reg.l;
-       *h = rv.reg.h;
-
-       return err;
-}
-EXPORT_SYMBOL(rdmsr_on_cpu);
-
-int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
-{
-       int err;
-       struct msr_info rv;
-
-       memset(&rv, 0, sizeof(rv));
-
-       rv.msr_no = msr_no;
-       rv.reg.l = l;
-       rv.reg.h = h;
-       err = smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 1);
-
-       return err;
-}
-EXPORT_SYMBOL(wrmsr_on_cpu);
-
-static void __rwmsr_on_cpus(const struct cpumask *mask, u32 msr_no,
-                           struct msr *msrs,
-                           void (*msr_func) (void *info))
-{
-       struct msr_info rv;
-       int this_cpu;
-
-       memset(&rv, 0, sizeof(rv));
-
-       rv.msrs   = msrs;
-       rv.msr_no = msr_no;
-
-       this_cpu = get_cpu();
-
-       if (cpumask_test_cpu(this_cpu, mask))
-               msr_func(&rv);
-
-       smp_call_function_many(mask, msr_func, &rv, 1);
-       put_cpu();
-}
-
-/* rdmsr on a bunch of CPUs
- *
- * @mask:       which CPUs
- * @msr_no:     which MSR
- * @msrs:       array of MSR values
- *
- */
-void rdmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs)
-{
-       __rwmsr_on_cpus(mask, msr_no, msrs, __rdmsr_on_cpu);
-}
-EXPORT_SYMBOL(rdmsr_on_cpus);
-
-/*
- * wrmsr on a bunch of CPUs
- *
- * @mask:       which CPUs
- * @msr_no:     which MSR
- * @msrs:       array of MSR values
- *
- */
-void wrmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs)
-{
-       __rwmsr_on_cpus(mask, msr_no, msrs, __wrmsr_on_cpu);
-}
-EXPORT_SYMBOL(wrmsr_on_cpus);
-
 struct msr *msrs_alloc(void)
 {
        struct msr *msrs = NULL;
@@ -137,100 +21,3 @@ void msrs_free(struct msr *msrs)
        free_percpu(msrs);
 }
 EXPORT_SYMBOL(msrs_free);
-
-/* These "safe" variants are slower and should be used when the target MSR
-   may not actually exist. */
-static void __rdmsr_safe_on_cpu(void *info)
-{
-       struct msr_info *rv = info;
-
-       rv->err = rdmsr_safe(rv->msr_no, &rv->reg.l, &rv->reg.h);
-}
-
-static void __wrmsr_safe_on_cpu(void *info)
-{
-       struct msr_info *rv = info;
-
-       rv->err = wrmsr_safe(rv->msr_no, rv->reg.l, rv->reg.h);
-}
-
-int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
-{
-       int err;
-       struct msr_info rv;
-
-       memset(&rv, 0, sizeof(rv));
-
-       rv.msr_no = msr_no;
-       err = smp_call_function_single(cpu, __rdmsr_safe_on_cpu, &rv, 1);
-       *l = rv.reg.l;
-       *h = rv.reg.h;
-
-       return err ? err : rv.err;
-}
-EXPORT_SYMBOL(rdmsr_safe_on_cpu);
-
-int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
-{
-       int err;
-       struct msr_info rv;
-
-       memset(&rv, 0, sizeof(rv));
-
-       rv.msr_no = msr_no;
-       rv.reg.l = l;
-       rv.reg.h = h;
-       err = smp_call_function_single(cpu, __wrmsr_safe_on_cpu, &rv, 1);
-
-       return err ? err : rv.err;
-}
-EXPORT_SYMBOL(wrmsr_safe_on_cpu);
-
-/*
- * These variants are significantly slower, but allows control over
- * the entire 32-bit GPR set.
- */
-struct msr_regs_info {
-       u32 *regs;
-       int err;
-};
-
-static void __rdmsr_safe_regs_on_cpu(void *info)
-{
-       struct msr_regs_info *rv = info;
-
-       rv->err = rdmsr_safe_regs(rv->regs);
-}
-
-static void __wrmsr_safe_regs_on_cpu(void *info)
-{
-       struct msr_regs_info *rv = info;
-
-       rv->err = wrmsr_safe_regs(rv->regs);
-}
-
-int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 *regs)
-{
-       int err;
-       struct msr_regs_info rv;
-
-       rv.regs   = regs;
-       rv.err    = -EIO;
-       err = smp_call_function_single(cpu, __rdmsr_safe_regs_on_cpu, &rv, 1);
-
-       return err ? err : rv.err;
-}
-EXPORT_SYMBOL(rdmsr_safe_regs_on_cpu);
-
-int wrmsr_safe_regs_on_cpu(unsigned int cpu, u32 *regs)
-{
-       int err;
-       struct msr_regs_info rv;
-
-       rv.regs = regs;
-       rv.err  = -EIO;
-       err = smp_call_function_single(cpu, __wrmsr_safe_regs_on_cpu, &rv, 1);
-
-       return err ? err : rv.err;
-}
-EXPORT_SYMBOL(wrmsr_safe_regs_on_cpu);