Messages in this thread | | | Date | Thu, 5 Mar 2020 16:16:36 +0100 | From | Christoph Hellwig <> | Subject | Re: [PATCH] dra7: sata: Fix SATA with CONFIG_ARM_LPAE enabled |
| |
On Thu, Mar 05, 2020 at 12:30:56PM +0000, Robin Murphy wrote: > Right - LPAE configs should be getting dma-direct ops since 5.3, which > already respect the limit. For non-LPAE configs it means you go from being > broken from having no limit at all, to having a limit set but not > respected, which is still equally broken, but no *more* so than before.
Actually, dma-direct doesn't automatically respect the bus limit. For various architectures including arm it uses the arch_dma_alloc callout, which for arm just uses the existing arm coherent allocator.
Thay being said I'm still looking for reviewers for the arm dma coherent allocator bus limit fix..
| |