mirror of https://github.com/acidanthera/audk.git
5816bd3eab
In ACPI 6.4, s6.2.13, _PRT objects describing PCI legacy interrupts can be defined following 2 models. In the first model, _PRT entries reference link devices. Link devices then describe interrupts. This allows to dynamically modify interrupts through _SRS and _PRS objects and to choose exactly the interrupt type (level/edge triggered, active high/low). In the second model, interrupt numbder are described in the _PRT entry. The interrupt type is then assumed by the OS. The Arm BSA, sE.6 "Legacy interrupts" states that PCI legacy interrupts must be converted to SPIs, and programmed level-sensitive, active high. Thus any OS must configure interrupts as such and there is no need to specify the interrupt type. Plus it is not possible to dynamically configure PCI interrupts. Thus remove the link device generation and use the second model for _PRT. Suggested-by: Ard Biesheuvel <ardb+tianocore@kernel.org> Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> |
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| .. | ||
| SsdtPcieGenerator.c | ||
| SsdtPcieGenerator.h | ||
| SsdtPcieLibArm.inf | ||
| SsdtPcieOscTemplate.asl | ||