From 968937d0d937487ab301f017c145889fc0e94692 Mon Sep 17 00:00:00 2001 From: Vegard Storheil Eriksen Date: Wed, 15 Sep 2021 23:16:11 +0200 Subject: platforms: Add initial RISC-V/GD32V support. --- interrupt/plic.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 interrupt/plic.h (limited to 'interrupt/plic.h') diff --git a/interrupt/plic.h b/interrupt/plic.h new file mode 100644 index 0000000..46ade92 --- /dev/null +++ b/interrupt/plic.h @@ -0,0 +1,25 @@ +#pragma once + +class PLIC_t { + private: + struct PLIC_ctx_reg_t { + volatile uint32_t THRESHOLD; + volatile uint32_t CLAIM; + uint32_t _reserved[1022]; + }; + + struct PLIC_reg_t { + volatile uint32_t PRIO[1024]; + volatile uint32_t PEND[32]; + uint32_t _reserved[992]; + volatile uint32_t ENABLE[15872][32]; + uint32_t _reserved2[14336]; + PLIC_ctx_reg_t CTX[15872]; + }; + + public: + PLIC_reg_t& reg; + + PLIC_t(uint32_t reg_addr) : + reg(*(PLIC_reg_t*)reg_addr) {} +}; -- cgit v1.2.3