DMA not supported below 4GB

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Subject: DMA not supported below 4GB
From: Simon Glass <sjg@xxxxxxxxxxxx>
Date: Tue, 14 Nov 2023 15:17:03 -0700
Cc: Rob Herring <robh@xxxxxxxxxx>

Hi,

Some devices do not support DMA above 4GB. Is there a way to express
this in the devicetree?

Should we add sometimes a 'no-dma-above-4g' property?

Or should we be using dma-ranges for this?

Regards,
Simon

Prev by Date: Re: [LINUX PATCH v2 3/3] pwm: pwm-cadence: Add support for TTC PWM
Next by Date: Re: [net-next PATCH v8 3/4] net: phy: aquantia: add firmware load support
Previous by thread: [PATCH v2 1/4] dt-bindings: spi: Convert spi-davinci.txt to YAML
Next by thread: Re: DMA not supported below 4GB
Index(es):
- Date
- Thread

[Index of Archives] [Device Tree Compilter] [Device Tree Spec] [Linux Driver Backports] [Video for Linux] [Linux USB Devel] [Linux PCI Devel] [Linux Audio Users] [Linux Kernel] [Linux SCSI] [XFree86] [Yosemite Backpacking]

Powered by Linux