pkarashchenko commented on a change in pull request #5192:
URL: https://github.com/apache/incubator-nuttx/pull/5192#discussion_r780977319
##########
File path: arch/risc-v/include/irq.h
##########
@@ -31,20 +31,450 @@
/* Include chip-specific IRQ definitions (including IRQ numbers) */
+#include <nuttx/config.h>
+#include <arch/types.h>
+
+#ifndef __ASSEMBLY__
#include <stdint.h>
#include <nuttx/irq.h>
#include <arch/csr.h>
#include <arch/chip/irq.h>
+#endif
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* Configuration ************************************************************/
+
+/* If this is a kernel build, how many nested system calls should we
+ * support?
+ */
+
+#ifndef CONFIG_SYS_NNEST
+# define CONFIG_SYS_NNEST 2
+#endif
+
+/* Processor PC */
+
+#define REG_EPC_NDX 0
+
+/* General pupose registers
+ * $0: Zero register does not need to be saved
+ * $1: ra (return address)
+ */
+
+#define REG_X1_NDX 1
+
+/* $2: Stack POinter
+ * $3: Global Pointer
+ * $4: Thread Pointer
+ */
+
+#define REG_X2_NDX 2
+#define REG_X3_NDX 3
+#define REG_X4_NDX 4
+
+/* $5-$7 = t0-t3: Temporary registers */
+
+#define REG_X5_NDX 5
+#define REG_X6_NDX 6
+#define REG_X7_NDX 7
+
+/* $8: s0 / fp Frame pointer */
+
+#define REG_X8_NDX 8
+
+/* $89 s1 Saved register */
+
+#define REG_X9_NDX 9
+
+/* $10-$17 = a0-a7: Argument registers */
+
+#define REG_X10_NDX 10
+#define REG_X11_NDX 11
+#define REG_X12_NDX 12
+#define REG_X13_NDX 13
+#define REG_X14_NDX 14
+#define REG_X15_NDX 15
+#define REG_X16_NDX 16
+#define REG_X17_NDX 17
+
+/* $18-$27 = s2-s11: Saved registers */
+
+#define REG_X18_NDX 18
+#define REG_X19_NDX 19
+#define REG_X20_NDX 20
+#define REG_X21_NDX 21
+#define REG_X22_NDX 22
+#define REG_X23_NDX 23
+#define REG_X24_NDX 24
+#define REG_X25_NDX 25
+#define REG_X26_NDX 26
+#define REG_X27_NDX 27
+
+/* $28-31 = t3-t6: Temporary (Volatile) registers */
+
+#define REG_X28_NDX 28
+#define REG_X29_NDX 29
+#define REG_X30_NDX 30
+#define REG_X31_NDX 31
+
+/* Interrupt Context register */
+
+#define REG_INT_CTX_NDX 32
+
+#ifdef CONFIG_ARCH_RISCV_INTXCPT_EXTREGS
+ #define INT_XCPT_REGS (33 + CONFIG_ARCH_RISCV_INTXCPT_EXTREGS)
+#else
+ #define INT_XCPT_REGS 33
+#endif
+
+#ifdef CONFIG_ARCH_RV32
+ #define INT_REG_SIZE 4
Review comment:
```suggestion
#define INT_REG_SIZE 4
```
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