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Differential D20126

busdma support for RISC-V
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Authored by br on May 1 2019, 3:37 PM.
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markj
mhorne
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rS347225: Provide a template for busdma code for RISC-V.
Summary

Provide a template for busdma based on arm64 with only change that "dsb(sy)" replaced with fence().
RISC-V specifies no cache management instructions so leave cache operations in cpufunc.h as no-op for now

Test Plan

Tested on HiFive Unleashed board with if_cgem

Diff Detail

Repository
rS FreeBSD src repository - subversion
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Event Timeline

br created this revision.May 1 2019, 3:37 PM
br edited the test plan for this revision. (Show Details)May 1 2019, 3:45 PM
br edited the summary of this revision. (Show Details)
br edited the test plan for this revision. (Show Details)
br edited the test plan for this revision. (Show Details)May 1 2019, 3:49 PM
markj accepted this revision.May 4 2019, 8:48 PM
This revision is now accepted and ready to land.May 4 2019, 8:48 PM
Closed by commit rS347225: Provide a template for busdma code for RISC-V. (authored by br). · Explain WhyMay 7 2019, 1:42 PM
This revision was automatically updated to reflect the committed changes.
Herald added a subscriber: imp. · View Herald TranscriptMay 7 2019, 1:42 PM

Revision Contents
Changeset List

PathSize
head/
sys/
conf/
1 line
riscv/
include/
134 lines
96 lines
11 lines
riscv/
1330 lines
189 lines
4 lines

Diff 57132

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head/sys/conf/files.riscv

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head/sys/riscv/include/bus_dma.h

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head/sys/riscv/include/bus_dma_impl.h

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head/sys/riscv/include/cpufunc.h

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head/sys/riscv/riscv/busdma_bounce.c

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head/sys/riscv/riscv/busdma_machdep.c

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head/sys/riscv/riscv/machdep.c

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