Messages in this thread | | | Subject | Re: [PATCH v2] riscv,mmio: Fix readX()-to-delay() ordering | From | patchwork-bot+linux-riscv@kernel ... | Date | Wed, 09 Aug 2023 14:40:21 +0000 |
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Hello:
This patch was applied to riscv/linux.git (fixes) by Palmer Dabbelt <palmer@rivosinc.com>:
On Thu, 3 Aug 2023 06:27:38 +0200 you wrote: > Section 2.1 of the Platform Specification [1] states: > > Unless otherwise specified by a given I/O device, I/O devices are on > ordering channel 0 (i.e., they are point-to-point strongly ordered). > > which is not sufficient to guarantee that a readX() by a hart completes > before a subsequent delay() on the same hart (cf. memory-barriers.txt, > "Kernel I/O barrier effects"). > > [...]
Here is the summary with links: - [v2] riscv,mmio: Fix readX()-to-delay() ordering https://git.kernel.org/riscv/c/4eb2eb1b4c0e
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