platforms: Add initial RISC-V/GD32V support.

1 files changed, 25 insertions, 0 deletions

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) {}
+};