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Standby method based on non-embedded controller Godson processor platform

A Godson processor, non-embedded technology, applied in the direction of data processing power supply, multi-programming device, etc., can solve the problem that BIOS and operating system are not ACPI-aware, and achieve the effect of reducing design complexity, cost saving, and wide application

Active Publication Date: 2015-08-26
JIANGSU LEMOTE TECH CORP
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Problems solved by technology

[0003] Chinese patent CN102541246B discloses a standby method based on the Loongson processor platform. Since the Loongson platform is quite different from the X86 platform, its BIOS and operating system are not ACPI-aware

Method used

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  • Standby method based on non-embedded controller Godson processor platform
  • Standby method based on non-embedded controller Godson processor platform

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Embodiment Construction

[0050] The present invention will be further described below in conjunction with the examples, but not as a limitation of the present invention.

[0051] Please combine figure 1 with figure 2 , Loongson platform can use various types of supporting chipsets, north bridge chips such as AMD RS690 / RS780 / SR5650 / SR6570 / SR5690, south bridge chips such as AMD SB600 / SB700 / SB710 / SB800 / SP5100, etc., they all support ACPI function. Taking the RS780+SB700 chipset as an example, the standby method of the computer is as follows:

[0052] 1) Freeze the process;

[0053] 2) Peripherals stop working;

[0054] 3) Turn off the peripheral power supply;

[0055] 4) Turn off the auxiliary core;

[0056] 5) Save the main core execution context;

[0057] i. Adjust the stack pointer (SP register), set aside a stack frame to save the context;

[0058] ii. Save No. 1 to No. 7 general-purpose registers (AT registers for assembler, V series registers for storing function return values, and A series...

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Abstract

The invention discloses a standby method based on a non-embedded controller Godson processor platform. The standby method comprises the steps of: performing a freezing progress; stopping the operation of the external device; powering off the power supply of the external device; closing a secondary core; storing a master core and executing the context; executing the operation by the master core to enter a standby state by setting a core group to access ACPI S3; clearing ACPI events and recovering the state of the indicator lamp of the power supply; recovering the master core and executing the context; starting up the secondary core; powering on the power supply of the external device; starting the operation of the external device; recovering the progress. The standby method can be applied to a desktop or a server platform without EC, does not need to depend on the EC, can reduce the design complexity and reduce the cost, so that the standby method can be more widely applied.

Description

technical field [0001] The invention relates to a computer standby method, in particular to a standby method based on a Godson processor platform without an embedded controller. Background technique [0002] Standby is a power management method that allows the system to enter a sleep state that can be quickly woken up when it is idle, and the power consumption is very low. Standby is also called Suspend To RAM (suspend to memory, STR for short), corresponding to ACPI (Advanced Power Configuration Interface) S3 state. Its characteristics are as follows: CPU and peripherals are all powered off, memory is powered but in a low-energy self-refresh state (the content remains unchanged), power consumption is about 1% of the power-on state, and the wake-up time is 5-8 seconds. It can be woken up by the power button. [0003] Chinese patent CN102541246B discloses a standby method based on the Loongson processor platform. Since the Loongson platform is quite different from the X86 p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/46G06F1/32
Inventor 陈华才张福新吴少刚丁汨江
Owner JIANGSU LEMOTE TECH CORP
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