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riscv: only select DMA_DIRECT_REMAP from RISCV_ISA_ZICBOM and ERRATA_THEAD_PBMT

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RISCV_DMA_NONCOHERENT is also used for whacky non-standard
non-coherent ops that use different hooks in dma-direct.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Tested-by: Samuel Holland <samuel.holland@sifive.com>
Link: https://lore.kernel.org/r/20231018052654.50074-3-hch@lst.de
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Christoph Hellwig 2023-10-18 07:26:53 +02:00 committed by Geert Uytterhoeven
parent fd96278127
commit 381cae1698
2 changed files with 2 additions and 1 deletions
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2
arch/riscv/Kconfig
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@ -273,7 +273,6 @@ config RISCV_DMA_NONCOHERENT
select ARCH_HAS_SYNC_DMA_FOR_CPU
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
select DMA_BOUNCE_UNALIGNED_KMALLOC if SWIOTLB
select DMA_DIRECT_REMAP if MMU
config RISCV_NONSTANDARD_CACHE_OPS
bool
@ -549,6 +548,7 @@ config RISCV_ISA_ZICBOM
depends on RISCV_ALTERNATIVE
default y
select RISCV_DMA_NONCOHERENT
select DMA_DIRECT_REMAP
help
Adds support to dynamically detect the presence of the ZICBOM
extension (Cache Block Management Operations) and enable its

1
arch/riscv/Kconfig.errata
View File

@ -77,6 +77,7 @@ config ERRATA_THEAD_PBMT
config ERRATA_THEAD_CMO
bool "Apply T-Head cache management errata"
depends on ERRATA_THEAD && MMU
select DMA_DIRECT_REMAP
select RISCV_DMA_NONCOHERENT
default y
help