Message ID | 20230221124613.2859-8-jiaxun.yang@flygoat.com (mailing list archive) |
---|---|
State | Handled Elsewhere, archived |
Headers | show |
Series | MIPS DMA coherence fixes | expand |
Context | Check | Description |
---|---|---|
snowpatch_ozlabs/github-powerpc_ppctests | success | Successfully ran 8 jobs. |
snowpatch_ozlabs/github-powerpc_selftests | success | Successfully ran 8 jobs. |
snowpatch_ozlabs/github-powerpc_sparse | success | Successfully ran 4 jobs. |
snowpatch_ozlabs/github-powerpc_kernel_qemu | success | Successfully ran 24 jobs. |
snowpatch_ozlabs/github-powerpc_clang | success | Successfully ran 6 jobs. |
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index a27fea39413e..2cfee7ba2e6a 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -271,7 +271,6 @@ config PPC select NEED_PER_CPU_PAGE_FIRST_CHUNK if PPC64 select NEED_SG_DMA_LENGTH select OF - select OF_DMA_DEFAULT_COHERENT if !NOT_COHERENT_CACHE select OF_EARLY_FLATTREE select OLD_SIGACTION if PPC32 select OLD_SIGSUSPEND diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index c1327309e0f6..e69e69b9cfd4 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -120,7 +120,6 @@ config RISCV select MODULES_USE_ELF_RELA if MODULES select MODULE_SECTIONS if MODULES select OF - select OF_DMA_DEFAULT_COHERENT select OF_EARLY_FLATTREE select OF_IRQ select PCI_DOMAINS_GENERIC if PCI diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig index 80b5fd44ab1c..e040837e5537 100644 --- a/drivers/of/Kconfig +++ b/drivers/of/Kconfig @@ -90,8 +90,4 @@ config OF_OVERLAY config OF_NUMA bool -config OF_DMA_DEFAULT_COHERENT - # arches should select this if DMA is coherent by default for OF devices - bool - endif # OF diff --git a/drivers/of/address.c b/drivers/of/address.c index c34ac33b7338..8e17adb10f20 100644 --- a/drivers/of/address.c +++ b/drivers/of/address.c @@ -1053,7 +1053,7 @@ phys_addr_t __init of_dma_get_max_cpu_address(struct device_node *np) bool of_dma_is_coherent(struct device_node *np) { struct device_node *node; - bool is_coherent = IS_ENABLED(CONFIG_OF_DMA_DEFAULT_COHERENT); + bool is_coherent = dma_default_coherent; node = of_node_get(np);
As for now all arches have dma_default_coherent matched with default DMA coherency for of devices, so there is no need to have a standalone config option. This also fixes a case that for some MIPS platforms, coherency information is not carried in devicetree and kernel will override dma_default_coherent at early boot. Note for PowerPC: CONFIG_OF_DMA_DEFUALT_COHERENT was only selected when CONFIG_NOT_COHERENT_CACHE is false, in this case dma_default_coherent will be ture, so we don't need to select CONFIG_ARCH_DMA_DEFAULT_COHERENT for PowerPC. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> --- arch/powerpc/Kconfig | 1 - arch/riscv/Kconfig | 1 - drivers/of/Kconfig | 4 ---- drivers/of/address.c | 2 +- 4 files changed, 1 insertion(+), 7 deletions(-)