Realization method, apparatus and device for displaying Feiteng platform-based AMD display card system LOGO in advance, and storage medium

A technology for realizing method and platform

Active Publication Date: 2018-09-18
KYLIN CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the loading of the graphics card driver depends on modules such as ACPI, DMA, RESET, TTY, CHAR, IOMMU, etc. It is nece

Method used

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  • Realization method, apparatus and device for displaying Feiteng platform-based AMD display card system LOGO in advance, and storage medium

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Embodiment Construction

[0034] The implementation of the present application will be described in detail below with reference to the accompanying drawings and examples, so as to fully understand and implement the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects.

[0035] The LOGO of the AMD graphics card system on the Feiteng platform shows the initialization process in advance Figure 1 Shown, specific embodiment steps are as follows:

[0036] Step S101: read the graphics card device ID and determine the graphics card architecture according to the ID so as to determine the initialization function of the graphics card;

[0037] Step S102: Obtain the PCIE BAR space address of the graphics card, and map its corresponding PCIE MEM, IO, ROM space;

[0038] Step S103: Obtain the ATOMBIOS of the graphics card from the PCIE ROM space of the graphics card and initialize the ATOMBIOS interpreter;

[0039] Step S104: Extracti...

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Abstract

The invention discloses a realization method for displaying a Feiteng platform-based AMD display card system LOGO in advance. The method comprises the steps of determining a display card architectureaccording to a device ID of a display card so as to determine a corresponding initialization function; reading an ATOMBIOS from a PCIE ROM space of the display card; extracting parameters such as a memory frequency, a voltage, a working frequency and the like of the display card through the ATOMBIOS, and according to the parameters, initializing the display card; initializing an I2C bus of the display card through the ATOMBIOS, judging connection states of CONNECTORS by utilizing the I2C bus and reading CONNECTORS EDID information in the connection states; according to the EDID information, initializing a frame caching region and finishing corresponding mode setting; enabling corresponding CRTC and ENCODER; and writing corresponding contents in the frame caching region to perform display.

Description

technical field [0001] The invention belongs to the field of communication and computer technology, in particular to a method for realizing the LOGO display in advance based on the Feiteng platform AMD graphics card system. Background technique [0002] The Phytium platform itself does not integrate a display chip. Generally, an AMD PCIE graphics card is inserted into the Phytium motherboard as a display output. For the newer AMD PCIE graphics card, due to the removal of the 2D hardware unit in the architecture, it is no longer possible to provide a frame buffer driver similar to the INTEL integrated graphics card that is displayed in advance; the firmware also fails to provide a UEFI display call interface similar to the x86 platform. Therefore, the existing Feiteng platform system LOGO needs to load the graphics card driver to initialize the graphics card and complete the corresponding mode settings before it can be output to the screen. Usually, the loading of the graphi...

Claims

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Application Information

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IPC IPC(8): G06F9/4401
CPCG06F9/4411
Inventor 王勇军周磊刘意虎张铎孙立明魏立峰孔金珠吴庆波
Owner KYLIN CORP
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