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Below are listed the software frameworks and drivers managing the GPU peripheral for the embedded software components listed in the above tables. | Below are listed the software frameworks and drivers managing the GPU peripheral for the embedded software components listed in the above tables. | ||
* '''Linux<sup>®</sup>''': | * '''Linux<sup>®</sup>''': OpenGL®ES framework | ||
==How to assign and configure the peripheral== | ==How to assign and configure the peripheral== |
Revision as of 13:05, 14 June 2023
1. Article purpose[edit | edit source]
The purpose of this article is to:
- briefly introduce the GPU peripheral and its main features,
- indicate the peripheral instances assignment at boot time and their assignment at runtime (including whether instances can be allocated to secure contexts),
- list the software frameworks and drivers managing the peripheral,
- explain how to configure the peripheral.
2. Peripheral overview[edit | edit source]
The GPU peripheral is a dedicated graphics processing unit. It accelerates numerous 3D graphics applications such as graphical user interface (GUI), menu display or animations. It works together with an optimized software stack designed for industry-standard APIs and supporting AndroidTM and Linux® embedded development platforms.
Refer to the STM32MP15 reference manuals for the complete list of features, and to the software frameworks and drivers, introduced below, to see which features are implemented.
3. Peripheral usage[edit | edit source]
This chapter is applicable in the scope of the OpenSTLinux BSP running on the Arm® Cortex®-A processor(s), and the STM32CubeMPU Package running on the Arm® Cortex®-M processor.
3.1. Boot time assignment[edit | edit source]
The GPU peripheral is not used at boot time.
3.2. Runtime assignment[edit | edit source]
3.2.1. On STM32MP15x lines [edit | edit source]
Click on the right to expand the legend...
Domain | Peripheral | Runtime allocation | Comment | |||
---|---|---|---|---|---|---|
Instance | Cortex-A7 secure (OP-TEE) |
Cortex-A7 non-secure (Linux) |
Cortex-M4 (STM32Cube) | |||
Visual | GPU | GPU | ☐ |
4. Software frameworks and drivers[edit | edit source]
Below are listed the software frameworks and drivers managing the GPU peripheral for the embedded software components listed in the above tables.
- Linux®: OpenGL®ES framework
5. How to assign and configure the peripheral[edit | edit source]
The peripheral assignment can be done via the STM32CubeMX graphical tool (and manually completed if needed).
This tool also helps to configure the peripheral:
- partial device trees (pin control and clock tree) generation for the OpenSTLinux software components,
- HAL initialization code generation for the STM32CubeMPU Package.
The configuration is applied by the firmware running in the context in which the peripheral is assigned.
See also additional information in the GPU device tree configuration article for Linux®.
6. How to go further[edit | edit source]
Please go through the articles belonging to the GPU category.