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/**
* @file
*
* @brief CPU Port Implementation API
*/
/*
* Copyright (C) 1999 Eric Valette (valette@crf.canon.fr)
* Canon Centre Recherche France.
*
* Copyright (C) 2007 Till Straumann <strauman@slac.stanford.edu>
*
* Copyright (c) 2009, 2016 embedded brains GmbH
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifndef _RTEMS_SCORE_CPUIMPL_H
#define _RTEMS_SCORE_CPUIMPL_H
#include <rtems/score/cpu.h>
#define SRR0_FRAME_OFFSET 8
#define SRR1_FRAME_OFFSET 12
#define EXCEPTION_NUMBER_OFFSET 16
#define EXC_CR_OFFSET 20
#define EXC_CTR_OFFSET 24
#define EXC_XER_OFFSET 28
#define EXC_LR_OFFSET 32
#define GPR0_OFFSET PPC_EXC_GPR_OFFSET(0)
#define GPR1_OFFSET PPC_EXC_GPR_OFFSET(1)
#define GPR2_OFFSET PPC_EXC_GPR_OFFSET(2)
#define GPR3_OFFSET PPC_EXC_GPR_OFFSET(3)
#define GPR4_OFFSET PPC_EXC_GPR_OFFSET(4)
#define GPR5_OFFSET PPC_EXC_GPR_OFFSET(5)
#define GPR6_OFFSET PPC_EXC_GPR_OFFSET(6)
#define GPR7_OFFSET PPC_EXC_GPR_OFFSET(7)
#define GPR8_OFFSET PPC_EXC_GPR_OFFSET(8)
#define GPR9_OFFSET PPC_EXC_GPR_OFFSET(9)
#define GPR10_OFFSET PPC_EXC_GPR_OFFSET(10)
#define GPR11_OFFSET PPC_EXC_GPR_OFFSET(11)
#define GPR12_OFFSET PPC_EXC_GPR_OFFSET(12)
#define GPR13_OFFSET PPC_EXC_GPR_OFFSET(13)
#define GPR14_OFFSET PPC_EXC_GPR_OFFSET(14)
#define GPR15_OFFSET PPC_EXC_GPR_OFFSET(15)
#define GPR16_OFFSET PPC_EXC_GPR_OFFSET(16)
#define GPR17_OFFSET PPC_EXC_GPR_OFFSET(17)
#define GPR18_OFFSET PPC_EXC_GPR_OFFSET(18)
#define GPR19_OFFSET PPC_EXC_GPR_OFFSET(19)
#define GPR20_OFFSET PPC_EXC_GPR_OFFSET(20)
#define GPR21_OFFSET PPC_EXC_GPR_OFFSET(21)
#define GPR22_OFFSET PPC_EXC_GPR_OFFSET(22)
#define GPR23_OFFSET PPC_EXC_GPR_OFFSET(23)
#define GPR24_OFFSET PPC_EXC_GPR_OFFSET(24)
#define GPR25_OFFSET PPC_EXC_GPR_OFFSET(25)
#define GPR26_OFFSET PPC_EXC_GPR_OFFSET(26)
#define GPR27_OFFSET PPC_EXC_GPR_OFFSET(27)
#define GPR28_OFFSET PPC_EXC_GPR_OFFSET(28)
#define GPR29_OFFSET PPC_EXC_GPR_OFFSET(29)
#define GPR30_OFFSET PPC_EXC_GPR_OFFSET(30)
#define GPR31_OFFSET PPC_EXC_GPR_OFFSET(31)
/* Exception stack frame -> BSP_Exception_frame */
#define FRAME_LINK_SPACE 8
#ifndef __SPE__
#define PPC_EXC_GPR_OFFSET(gpr) ((gpr) * PPC_GPR_SIZE + 36)
#define PPC_EXC_VECTOR_PROLOGUE_OFFSET PPC_EXC_GPR_OFFSET(4)
#if defined(PPC_MULTILIB_ALTIVEC) && defined(PPC_MULTILIB_FPU)
#define PPC_EXC_VRSAVE_OFFSET 168
#define PPC_EXC_VSCR_OFFSET 172
#define PPC_EXC_VR_OFFSET(v) ((v) * 16 + 176)
#define PPC_EXC_FR_OFFSET(f) ((f) * 8 + 688)
#define PPC_EXC_FPSCR_OFFSET 944
#define PPC_EXC_FRAME_SIZE 960
#define PPC_EXC_MIN_VSCR_OFFSET 92
#define PPC_EXC_MIN_VR_OFFSET(v) ((v) * 16 + 96)
#define PPC_EXC_MIN_FR_OFFSET(f) ((f) * 8 + 416)
#define PPC_EXC_MIN_FPSCR_OFFSET 528
#define CPU_INTERRUPT_FRAME_SIZE 544
#elif defined(PPC_MULTILIB_ALTIVEC)
#define PPC_EXC_VRSAVE_OFFSET 168
#define PPC_EXC_VSCR_OFFSET 172
#define PPC_EXC_VR_OFFSET(v) ((v) * 16 + 176)
#define PPC_EXC_FRAME_SIZE 688
#define PPC_EXC_MIN_VSCR_OFFSET 92
#define PPC_EXC_MIN_VR_OFFSET(v) ((v) * 16 + 96)
#define CPU_INTERRUPT_FRAME_SIZE 416
#elif defined(PPC_MULTILIB_FPU)
#define PPC_EXC_FR_OFFSET(f) ((f) * 8 + 168)
#define PPC_EXC_FPSCR_OFFSET 424
#define PPC_EXC_FRAME_SIZE 448
#define PPC_EXC_MIN_FR_OFFSET(f) ((f) * 8 + 96)
#define PPC_EXC_MIN_FPSCR_OFFSET 92
#define CPU_INTERRUPT_FRAME_SIZE 224
#else
#define PPC_EXC_FRAME_SIZE 176
#define CPU_INTERRUPT_FRAME_SIZE 96
#endif
#else
#define PPC_EXC_SPEFSCR_OFFSET 36
#define PPC_EXC_ACC_OFFSET 40
#define PPC_EXC_GPR_OFFSET(gpr) ((gpr) * PPC_GPR_SIZE + 48)
#define PPC_EXC_VECTOR_PROLOGUE_OFFSET (PPC_EXC_GPR_OFFSET(4) + 4)
#define CPU_INTERRUPT_FRAME_SIZE 160
#define PPC_EXC_FRAME_SIZE 320
#endif
#define CPU_PER_CPU_CONTROL_SIZE 0
#ifdef RTEMS_SMP
/* Use SPRG0 for the per-CPU control of the current processor */
#define PPC_PER_CPU_CONTROL_REGISTER 272
#endif /* RTEMS_SMP */
#ifndef ASM
#ifdef __cplusplus
extern "C" {
#endif
typedef struct {
uint32_t FRAME_SP;
uint32_t FRAME_LR;
uint32_t EXC_SRR0;
uint32_t EXC_SRR1;
uint32_t unused;
uint32_t EXC_CR;
uint32_t EXC_CTR;
uint32_t EXC_XER;
uint32_t EXC_LR;
#ifdef __SPE__
uint32_t EXC_SPEFSCR;
uint64_t EXC_ACC;
#endif
PPC_GPR_TYPE GPR0;
PPC_GPR_TYPE GPR1;
PPC_GPR_TYPE GPR2;
PPC_GPR_TYPE GPR3;
PPC_GPR_TYPE GPR4;
PPC_GPR_TYPE GPR5;
PPC_GPR_TYPE GPR6;
PPC_GPR_TYPE GPR7;
PPC_GPR_TYPE GPR8;
PPC_GPR_TYPE GPR9;
PPC_GPR_TYPE GPR10;
PPC_GPR_TYPE GPR11;
PPC_GPR_TYPE GPR12;
uint32_t EARLY_INSTANT;
#ifdef PPC_MULTILIB_ALTIVEC
/* This field must take stvewx/lvewx requirements into account */
uint32_t VSCR;
uint8_t V0[16] RTEMS_ALIGNED(16);
uint8_t V1[16];
uint8_t V2[16];
uint8_t V3[16];
uint8_t V4[16];
uint8_t V5[16];
uint8_t V6[16];
uint8_t V7[16];
uint8_t V8[16];
uint8_t V9[16];
uint8_t V10[16];
uint8_t V11[16];
uint8_t V12[16];
uint8_t V13[16];
uint8_t V14[16];
uint8_t V15[16];
uint8_t V16[16];
uint8_t V17[16];
uint8_t V18[16];
uint8_t V19[16];
#endif
#ifdef PPC_MULTILIB_FPU
double F0;
double F1;
double F2;
double F3;
double F4;
double F5;
double F6;
double F7;
double F8;
double F9;
double F10;
double F11;
double F12;
double F13;
uint64_t FPSCR;
#endif
#if !defined(PPC_MULTILIB_ALTIVEC) && !defined(PPC_MULTILIB_FPU)
uint32_t RESERVED_FOR_STACK_ALIGNMENT;
#endif
} CPU_Interrupt_frame;
#ifdef RTEMS_SMP
static inline struct Per_CPU_Control *_PPC_Get_current_per_CPU_control( void )
{
struct Per_CPU_Control *cpu_self;
__asm__ volatile (
"mfspr %0, " RTEMS_XSTRING( PPC_PER_CPU_CONTROL_REGISTER )
: "=r" ( cpu_self )
);
return cpu_self;
}
#define _CPU_Get_current_per_CPU_control() _PPC_Get_current_per_CPU_control()
#endif /* RTEMS_SMP */
#ifdef __cplusplus
}
#endif
#endif /* ASM */
#endif /* _RTEMS_SCORE_CPUIMPL_H */
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