default or selected kernelversion does not have config value CONFIG_DMAR_BROKEN_GFX_WA.
Result is shown for kernelversion 6.2.5
Workaround broken graphics drivers (going away soon)
configname: CONFIG_DMAR_BROKEN_GFX_WA
Linux Kernel Configuration
└─>Device Drivers
└─>IOMMU Hardware Support
└─>Workaround broken graphics drivers (going away soon)
In linux kernel since version 2.6.31 (release Date: 2009-09-09)
Current Graphics drivers tend to use physical address
for DMA and avoid using DMA APIs. Setting this config
option permits the IOMMU driver to set a unity map for
all the OS-visible memory. Hence the driver can continue
to use physical addresses for DMA, at least until this
option is removed in the 2.6.32 kernel.
for DMA and avoid using DMA APIs. Setting this config
option permits the IOMMU driver to set a unity map for
all the OS-visible memory. Hence the driver can continue
to use physical addresses for DMA, at least until this
option is removed in the 2.6.32 kernel.