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port: riscv: Create some macros for the FPU context

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This commit is contained in:
Jonathan Cubides 2025-01-23 14:54:40 +01:00
parent f38a54b42a
commit 214b8092f2
1 changed files with 30 additions and 1 deletions
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31
portable/GCC/RISC-V/portContext.h
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@ -59,7 +59,36 @@
#endif #endif
#define portICONTEXT_SIZE ( portIREG_COUNT * portWORD_SIZE ) #define portICONTEXT_SIZE ( portIREG_COUNT * portWORD_SIZE )
#define portCONTEXT_SIZE ( portICONTEXT_SIZE ) /* Provide a value for the reserved size for the FPU registers. portFPUCONTEXT_SIZE is always defined,
* but it may be 0 if the FPU is not used */
#ifdef portasmSTORE_FPU_CONTEXT
#define MSTATUS_FS_MASK 0x6000 /* Floating-point Unit Status in mstatus register */
#define MSTATUS_FS_INITIAL 0x2000
#define MSTATUS_FS_CLEAN 0x4000
#define MSTATUS_FS_DIRTY 0x6000
#define MSTATUS_FS_USED_OFFSET 14
#ifdef __riscv_fdiv
#define portFPUREG_SIZE (__riscv_flen / 8)
#if __riscv_flen == 32
#define load_f flw
#define store_f fsw
#elif __riscv_flen == 64
#define load_f fld
#define store_f fsd
#else
#error Assembler did not define __riscv_flen
#endif
#define portFPUREG_COUNT 33 /* 32 Floating point registers plus one CSR */
#define portFPUREG_OFFSET(_fpureg_) (_fpureg_ * portFPUREG_SIZE + portICONTEXT_SIZE)
#define portFPUCONTEXT_SIZE (portFPUREG_SIZE * portFPUREG_COUNT)
#else
#define portFPUCONTEXT_SIZE 0
#endif
#else
#define portFPUCONTEXT_SIZE 0
#endif
#define portCONTEXT_SIZE ( portICONTEXT_SIZE + portFPUCONTEXT_SIZE )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
.extern pxCurrentTCB .extern pxCurrentTCB