linux/drivers/platform, branch v2.6.36

IPS driver: Fix limit clamping when reducing CPU power

2010-10-05T18:59:35Z

Values here are in internal units rather than Watts, so we shouldn't perform any conversion. Signed-off-by: Matthew Garrett

[PATCH 2/2] IPS driver: disable CPU turbo

2010-10-05T18:59:28Z

The undocumented interface we're using for reading CPU power seems to be overreporting power. Until we figure out how to correct it, disable CPU turbo and power reporting to be safe. This will keep the CPU within default limits and still allow us to increase GPU frequency as needed. Signed-off-by: Jesse Barnes Signed-off-by: Matthew Garrett

IPS driver: apply BIOS provided CPU limit if different from default

2010-10-05T18:59:25Z

The BIOS may hand us a lower CPU power limit than the default for a given SKU. We should use it in case the platform isn't designed to dissapate the full TDP of a given part. Signed-off-by: Jesse Barnes Signed-off-by: Matthew Garrett

intel_ips -- ensure we do not enable gpu turbo mode without driver linkage

2010-10-05T18:59:21Z

Both when polling the current turbo status (in poll_turbo_status mode) and when handling thermal events (in ips_irq_handler) the current status of GPU turbo is updated to match the hardware status. However if during driver initialisation we were unable aquire linkage to the i915 driver enabling GPU turbo will lead to an oops on the first attempt to determine GPU busy status. Ensure that we do not enable GPU turbo unless we have driver linkage. BugLink: http://bugs.launchpad.net/bugs/632430 Cc: stable@kernel.org Signed-off-by: Andy Whitcroft Signed-off-by: Matthew Garrett

intel_ips: Print MCP limit exceeded values.

2010-10-05T18:59:17Z

Print some interesting values when MCP limits are exceeded. Signed-off-by: Tim Gardner Cc: Matthew Garrett Signed-off-by: Matthew Garrett

IPS driver: verify BIOS provided limits

2010-10-05T18:59:14Z

They're optional. If not present or sane, we should use the CPU defaults. Signed-off-by: Jesse Barnes Signed-off-by: Matthew Garrett

IPS driver: don't toggle CPU turbo on unsupported CPUs

2010-10-05T18:59:09Z

If the CPU doesn't support turbo, don't try to enable/disable it. http://bugzilla.kernel.org/show_bug.cgi?id=18742 Signed-off-by: Jesse Barnes Signed-off-by: Matthew Garrett

NULL pointer might be used in ips_monitor()

2010-10-05T18:59:06Z

The patch is to create ips_adjust thread before ips_monitor begins to run because the latter will kthread_stop() or wake up the former via ips->adjust pointer. Without this change, it is possible that ips->adjust is NULL when kthread_stop() or wake_up_process() is called in ips_monitor(). Signed-off-by: minskey guo Acked-by: Jesse Barnes Signed-off-by: Matthew Garrett

Release symbol on error-handling path of ips_get_i915_syms()

2010-10-05T18:59:01Z

In ips_get_i915_syms(), the symbol i915_gpu_busy() is not released when error occurs. Signed-off-by: minskey guo Acked-by: Jesse Barnes Signed-off-by: Matthew Garrett

old_cpu_power is wrongly divided by 65535 in ips_monitor()

2010-10-05T18:58:57Z

The variable old_cpu_power is used to save the value of THM_CEC register. In get_cpu_power(), it will be divided by 65535. Signed-off-by: minskey guo Acked-by: Jesse Barnes Signed-off-by: Matthew Garrett