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riscv: Add new arch-level component

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Changes come from internal branch commit a6723fc
This commit is contained in:
Angus Gratton
2020-11-06 15:03:03 +11:00
parent f5939c9e68
commit fccab8f4ef
13 changed files with 1452 additions and 1 deletions
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95
components/riscv/include/riscv/rvruntime-frames.h Normal file
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@@ -0,0 +1,95 @@
#ifndef __RVRUNTIME_FRAMES_H__
#define __RVRUNTIME_FRAMES_H__
/* Align a value up to nearest n-byte boundary, where n is a power of 2. */
#define ALIGNUP(n, val) (((val) + (n)-1) & -(n))
#ifdef STRUCT_BEGIN
#undef STRUCT_BEGIN
#undef STRUCT_FIELD
#undef STRUCT_AFIELD
#undef STRUCT_END
#endif
#if defined(_ASMLANGUAGE) || defined(__ASSEMBLER__)
#define STRUCT_BEGIN .pushsection .text; .struct 0
#define STRUCT_FIELD(ctype,size,asname,name) asname: .space size
#define STRUCT_AFIELD(ctype,size,asname,name,n) asname: .space (size)*(n)
#define STRUCT_END(sname) sname##Size:; .popsection
#else
#define STRUCT_BEGIN typedef struct {
#define STRUCT_FIELD(ctype,size,asname,name) ctype name;
#define STRUCT_AFIELD(ctype,size,asname,name,n) ctype name[n];
#define STRUCT_END(sname) } sname;
#endif
/*
-------------------------------------------------------------------------------
INTERRUPT/EXCEPTION STACK FRAME FOR A EXCEPTION OR NESTED INTERRUPT
-------------------------------------------------------------------------------
*/
STRUCT_BEGIN
STRUCT_FIELD (long, 4, RV_STK_MEPC, mepc) /* Machine Exception Program Counter */
STRUCT_FIELD (long, 4, RV_STK_RA, ra) /* Return address */
STRUCT_FIELD (long, 4, RV_STK_SP, sp) /* Stack pointer */
STRUCT_FIELD (long, 4, RV_STK_GP, gp) /* Global pointer */
STRUCT_FIELD (long, 4, RV_STK_TP, tp) /* Thread pointer */
STRUCT_FIELD (long, 4, RV_STK_T0, t0) /* Temporary/alternate link register */
STRUCT_FIELD (long, 4, RV_STK_T1, t1) /* t1-2: Temporaries */
STRUCT_FIELD (long, 4, RV_STK_T2, t2)
STRUCT_FIELD (long, 4, RV_STK_S0, s0) /* Saved register/frame pointer */
STRUCT_FIELD (long, 4, RV_STK_S1, s1) /* Saved register */
STRUCT_FIELD (long, 4, RV_STK_A0, a0) /* a0-1: Function arguments/return address */
STRUCT_FIELD (long, 4, RV_STK_A1, a1)
STRUCT_FIELD (long, 4, RV_STK_A2, a2) /* a2-7: Function arguments */
STRUCT_FIELD (long, 4, RV_STK_A3, a3)
STRUCT_FIELD (long, 4, RV_STK_A4, a4)
STRUCT_FIELD (long, 4, RV_STK_A5, a5)
STRUCT_FIELD (long, 4, RV_STK_A6, a6)
STRUCT_FIELD (long, 4, RV_STK_A7, a7)
STRUCT_FIELD (long, 4, RV_STK_S2, s2) /* s2-11: Saved registers */
STRUCT_FIELD (long, 4, RV_STK_S3, s3)
STRUCT_FIELD (long, 4, RV_STK_S4, s4)
STRUCT_FIELD (long, 4, RV_STK_S5, s5)
STRUCT_FIELD (long, 4, RV_STK_S6, s6)
STRUCT_FIELD (long, 4, RV_STK_S7, s7)
STRUCT_FIELD (long, 4, RV_STK_S8, s8)
STRUCT_FIELD (long, 4, RV_STK_S9, s9)
STRUCT_FIELD (long, 4, RV_STK_S10, s10)
STRUCT_FIELD (long, 4, RV_STK_S11, s11)
STRUCT_FIELD (long, 4, RV_STK_T3, t3) /* t3-6: Temporaries */
STRUCT_FIELD (long, 4, RV_STK_T4, t4)
STRUCT_FIELD (long, 4, RV_STK_T5, t5)
STRUCT_FIELD (long, 4, RV_STK_T6, t6)
STRUCT_FIELD (long, 4, RV_STK_MSTATUS, mstatus) /* Machine Status */
STRUCT_FIELD (long, 4, RV_STK_MTVEC, mtvec) /* Machine Trap-Vector Base Address */
STRUCT_FIELD (long, 4, RV_STK_MCAUSE, mcause) /* Machine Trap Cause */
STRUCT_FIELD (long, 4, RV_STK_PCCRS, pccrs) /* Performance Counter Counter Registers */
STRUCT_FIELD (long, 4, RV_STK_PCER, pcer) /* Performance Counter Enable */
STRUCT_FIELD (long, 4, RV_STK_PCMR, pcmr) /* Performance Counter Mode */
STRUCT_FIELD (long, 4, RV_STK_HWLP, hwlp) /* Hardware Loop Registers */
STRUCT_FIELD (long, 4, RV_STK_PRIVLV, privlv) /* Privilege Level */
STRUCT_FIELD (long, 4, RV_STK_UHARTID, uhartid) /* Hardware Thread ID */
STRUCT_FIELD (long, 4, RV_STK_MHARTID, mhartid) /* Hardware Thread ID */
STRUCT_FIELD (long, 4, RV_STK_DCSR, dcsr) /* Debug Control and Status */
STRUCT_FIELD (long, 4, RV_STK_DPC, dpc) /* Debug PC */
STRUCT_FIELD (long, 4, RV_STK_INTC_THRESH, intc_thresh)
STRUCT_FIELD (long, 4, RV_STK_RESERVED0, reserved0)
STRUCT_END(RvExcFrame)
#if defined(_ASMLANGUAGE) || defined(__ASSEMBLER__)
# define RV_STK_SZ1 RvExcFrameSize
#else
# define RV_STK_SZ1 sizeof(RvExcFrame)
#endif
/*
* This is the frame size.
*/
#define RV_STK_FRMSZ (ALIGNUP(0x10, RV_STK_SZ1))
#endif /* #ifndef __RVRUNTIME_FRAMES_H__ */