path: root/cpukit/score/cpu/powerpc/cpu.c

/**
 *  @file
 *
 *  @brief PowerPC Dependent Source
 */

/*
 *  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.
 */

/*
 * For now, this file is just a stub to work around
 * structural deficiencies of the powerpc port.
 */

#ifdef HAVE_CONFIG_H
  #include "config.h"
#endif

#include <rtems/system.h>
#include <rtems/score/cpu.h>

#define PPC_ASSERT_OFFSET(field, off) \
  RTEMS_STATIC_ASSERT( \
    offsetof(ppc_context, field) + PPC_DEFAULT_CACHE_LINE_SIZE \
      == PPC_CONTEXT_OFFSET_ ## off, \
    ppc_context_offset_ ## field \
  )

PPC_ASSERT_OFFSET(gpr1, GPR1);
PPC_ASSERT_OFFSET(msr, MSR);
PPC_ASSERT_OFFSET(lr, LR);
PPC_ASSERT_OFFSET(cr, CR);
PPC_ASSERT_OFFSET(gpr14, GPR14);
PPC_ASSERT_OFFSET(gpr15, GPR15);
PPC_ASSERT_OFFSET(gpr16, GPR16);
PPC_ASSERT_OFFSET(gpr17, GPR17);
PPC_ASSERT_OFFSET(gpr18, GPR18);
PPC_ASSERT_OFFSET(gpr19, GPR19);
PPC_ASSERT_OFFSET(gpr20, GPR20);
PPC_ASSERT_OFFSET(gpr21, GPR21);
PPC_ASSERT_OFFSET(gpr22, GPR22);
PPC_ASSERT_OFFSET(gpr23, GPR23);
PPC_ASSERT_OFFSET(gpr24, GPR24);
PPC_ASSERT_OFFSET(gpr25, GPR25);
PPC_ASSERT_OFFSET(gpr26, GPR26);
PPC_ASSERT_OFFSET(gpr27, GPR27);
PPC_ASSERT_OFFSET(gpr28, GPR28);
PPC_ASSERT_OFFSET(gpr29, GPR29);
PPC_ASSERT_OFFSET(gpr30, GPR30);
PPC_ASSERT_OFFSET(gpr31, GPR31);
PPC_ASSERT_OFFSET(gpr2, GPR2);

#ifdef RTEMS_SMP
  PPC_ASSERT_OFFSET(is_executing, IS_EXECUTING);
#endif

#ifdef PPC_MULTILIB_ALTIVEC
  RTEMS_STATIC_ASSERT(
    PPC_CONTEXT_OFFSET_V20 % 16 == 0,
    ppc_context_altivec
  );
  PPC_ASSERT_OFFSET(v20, V20);
  PPC_ASSERT_OFFSET(v21, V21);
  PPC_ASSERT_OFFSET(v22, V22);
  PPC_ASSERT_OFFSET(v23, V23);
  PPC_ASSERT_OFFSET(v24, V24);
  PPC_ASSERT_OFFSET(v25, V25);
  PPC_ASSERT_OFFSET(v26, V26);
  PPC_ASSERT_OFFSET(v27, V27);
  PPC_ASSERT_OFFSET(v28, V28);
  PPC_ASSERT_OFFSET(v29, V29);
  PPC_ASSERT_OFFSET(v30, V30);
  PPC_ASSERT_OFFSET(v31, V31);
  PPC_ASSERT_OFFSET(vrsave, VRSAVE);
#endif

#ifdef PPC_MULTILIB_FPU
  PPC_ASSERT_OFFSET(f14, F14);
  PPC_ASSERT_OFFSET(f15, F15);
  PPC_ASSERT_OFFSET(f16, F16);
  PPC_ASSERT_OFFSET(f17, F17);
  PPC_ASSERT_OFFSET(f18, F18);
  PPC_ASSERT_OFFSET(f19, F19);
  PPC_ASSERT_OFFSET(f20, F20);
  PPC_ASSERT_OFFSET(f21, F21);
  PPC_ASSERT_OFFSET(f22, F22);
  PPC_ASSERT_OFFSET(f23, F23);
  PPC_ASSERT_OFFSET(f24, F24);
  PPC_ASSERT_OFFSET(f25, F25);
  PPC_ASSERT_OFFSET(f26, F26);
  PPC_ASSERT_OFFSET(f27, F27);
  PPC_ASSERT_OFFSET(f28, F28);
  PPC_ASSERT_OFFSET(f29, F29);
  PPC_ASSERT_OFFSET(f30, F30);
  PPC_ASSERT_OFFSET(f31, F31);
#endif

RTEMS_STATIC_ASSERT(
  sizeof(Context_Control) % PPC_DEFAULT_CACHE_LINE_SIZE == 0,
  ppc_context_size
);