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src/sys/arch/x86/include/pmap.h@1.23
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diff
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nxr@1.23
src/sys/arch/x86/x86/bus_dma.c@1.50 / diff / nxr@1.50
src/sys/arch/x86/x86/pmap.c@1.83 / diff / nxr@1.83
src/sys/arch/x86/x86/bus_dma.c@1.50 / diff / nxr@1.50
src/sys/arch/x86/x86/pmap.c@1.83 / diff / nxr@1.83
Introduce PMAP_NOCACHE as first PMAP MD bit in x86. Make use of it in pmap_enter().
This safes one extra TLB flush when mapping dma-safe memory.
Presented on tech-kern@, port-i386@ and port-amd64@
ok ad@
This safes one extra TLB flush when mapping dma-safe memory.
Presented on tech-kern@, port-i386@ and port-amd64@
ok ad@