[GitHub] [incubator-nuttx] xiaoxiang781216 commented on a change in pull request #5103: arch/risc-v: Refine riscv_fpu.S

[GitBox]

xiaoxiang781216 commented on a change in pull request #5103:
URL: https://github.com/apache/incubator-nuttx/pull/5103#discussion_r776161182



##########
File path: arch/risc-v/src/common/riscv_fpu.S
##########
@@ -95,7 +108,7 @@ up_fpuconfig:
  *   floating point registers.
  *
  * C Function Prototype:
- *   void riscv_savefpu(uint64_t *regs);
+ *   void riscv_savefpu(uintptr_t *regs);

Review comment:
       should we change the prototype in up_internal.h:
   ```
   #ifdef CONFIG_ARCH_FPU
   #ifdef CONFIG_ARCH_RV64
   void riscv_savefpu(uint64_t *regs);
   void riscv_restorefpu(const uint64_t *regs);
   #else /* !CONFIG_ARCH_RV64 */
   void riscv_savefpu(uint32_t *regs);
   void riscv_restorefpu(const uint32_t *regs);
   #endif /* CONFIG_ARCH_RV64 */
   #else
   #  define riscv_savefpu(regs)
   #  define riscv_restorefpu(regs)
   #endif
   ```
   to:
   ```
   #ifdef CONFIG_ARCH_FPU
   void riscv_savefpu(uintptr_t *regs);
   void riscv_restorefpu(const uintptr_t *regs);
   #else
   #  define riscv_savefpu(regs)
   #  define riscv_restorefpu(regs)
   #endif
   ```




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