risc-v/litex: Implement up_flush_dcache_all when CONFIG_ARCH_DCACHE is defined. #17696
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…s defined. This duplicates the up_invalidate_dcache_all as vexriscv's DBUS cache does not distinguish between flushing and invalidation. Signed-off-by: Justin Erenkrantz <justin@erenkrantz.com>
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xiaoxiang781216
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Dec 27, 2025
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Implements
up_flush_dcache_allfor litex / vexriscv boards.This duplicates
up_invalidate_dcache_allas vexriscv's DBUS cachedoes not distinguish between flushing and invalidation.
This was discussed earlier in #17493 and it was felt that this code fix might be better than removing the CONFIG_ARCH_DCACHE definitions.
Summary
Currently, litex / vexriscv boards do not compile as
up_flush_dcache_allis not defined.Impact
Allows compilation of
arty_a7:nsh.Testing
compilation succeeds with
arty_a7:nshbuilds and runs successfully on a vexriscv linux variant.