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intel_ips: Print MCP limit exceeded values. 

Print some interesting values when MCP limits
are exceeded.

Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
This commit is contained in:
Tim Gardner 2010-09-28 14:58:15 -06:00 committed by Matthew Garrett
parent eceab272fb
commit a8c096adbd
1 changed files with 19 additions and 7 deletions
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26
drivers/platform/x86/intel_ips.c
View File

@ -600,17 +600,29 @@ static bool mcp_exceeded(struct ips_driver *ips)
{
unsigned long flags;
bool ret = false;
u32 temp_limit;
u32 avg_power;
const char *msg = "MCP limit exceeded: ";
spin_lock_irqsave(&ips->turbo_status_lock, flags);
if (ips->mcp_avg_temp > (ips->mcp_temp_limit * 100))
ret = true;
if (ips->cpu_avg_power + ips->mch_avg_power > ips->mcp_power_limit)
ret = true;
spin_unlock_irqrestore(&ips->turbo_status_lock, flags);
if (ret)
temp_limit = ips->mcp_temp_limit * 100;
if (ips->mcp_avg_temp > temp_limit) {
dev_info(&ips->dev->dev,
"MCP power or thermal limit exceeded\n");
"%sAvg temp %u, limit %u\n", msg, ips->mcp_avg_temp,
temp_limit);
ret = true;
}
avg_power = ips->cpu_avg_power + ips->mch_avg_power;
if (avg_power > ips->mcp_power_limit) {
dev_info(&ips->dev->dev,
"%sAvg power %u, limit %u\n", msg, avg_power,
ips->mcp_power_limit);
ret = true;
}
spin_unlock_irqrestore(&ips->turbo_status_lock, flags);
return ret;
}