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authorDave Jones <davej@redhat.com>2007-01-29 00:07:04 -0500
committerDave Jones <davej@redhat.com>2007-01-29 00:07:04 -0500
commit3453c8478a228d9b374956ea99256163f1a0c88c (patch)
tree045078bc9feef6a74c7813e8892e4d37d938640b /arch/i386/kernel/cpu
parent0142f9dce8425da031d72dc3b70ee7161fcaaea2 (diff)
[CPUFREQ] Remove unneeded errata workaround from p4-clockmod.
This workaround unnecessarily cripples functionality to work around an errata that doesn't seem possible to hit due to us using the automatic clock throttling in the p4 mcheck code. See http://lkml.org/lkml/2006/10/28/148 for complete reasoning and lack of disconsent. Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'arch/i386/kernel/cpu')
-rw-r--r--arch/i386/kernel/cpu/cpufreq/p4-clockmod.c9
1 files changed, 0 insertions, 9 deletions
diff --git a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
index bec50170b75..4786fedca6e 100644
--- a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
+++ b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
@@ -51,7 +51,6 @@ enum {
static int has_N44_O17_errata[NR_CPUS];
-static int has_N60_errata[NR_CPUS];
static unsigned int stock_freq;
static struct cpufreq_driver p4clockmod_driver;
static unsigned int cpufreq_p4_get(unsigned int cpu);
@@ -224,12 +223,6 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy)
case 0x0f12:
has_N44_O17_errata[policy->cpu] = 1;
dprintk("has errata -- disabling low frequencies\n");
- break;
-
- case 0x0f29:
- has_N60_errata[policy->cpu] = 1;
- dprintk("has errata -- disabling frequencies lower than 2ghz\n");
- break;
}
/* get max frequency */
@@ -241,8 +234,6 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy)
for (i=1; (p4clockmod_table[i].frequency != CPUFREQ_TABLE_END); i++) {
if ((i<2) && (has_N44_O17_errata[policy->cpu]))
p4clockmod_table[i].frequency = CPUFREQ_ENTRY_INVALID;
- else if (has_N60_errata[policy->cpu] && ((stock_freq * i)/8) < 2000000)
- p4clockmod_table[i].frequency = CPUFREQ_ENTRY_INVALID;
else
p4clockmod_table[i].frequency = (stock_freq * i)/8;
}