arch/arm-native/kernel/kernel_cpu.h

   1 /*
   2     Copyright © 2013, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #ifndef CPU_ARM_H_
   7 #define CPU_ARM_H_
   8
   9 #include <inttypes.h>
  10 #include "kernel_arm.h"
  11
  12 extern uint32_t __arm_affinitymask;
  13
  14 #define EXCEPTIONS_COUNT        1
  15
  16 #define ARM_FPU_TYPE            FPU_VFP
  17 #define ARM_FPU_SIZE            32*64
  18
  19 /* We use native context format, no conversion needed */
  20 #define regs_t struct ExceptionContext
  21 /* There are no private add-ons */
  22 #define AROSCPUContext ExceptionContext
  23
  24 #define ADDTIME(dest, src)                      \
  25     (dest)->tv_micro += (src)->tv_micro;        \
  26     (dest)->tv_secs  += (src)->tv_secs;         \
  27     while((dest)->tv_micro > 999999)            \
  28     {                                           \
  29         (dest)->tv_secs++;                      \
  30         (dest)->tv_micro -= 1000000;            \
  31     }
  32
  33 #define goSuper() 0
  34 #define goUser()
  35
  36 #undef krnSysCall
  37 #define krnSysCall(n) asm volatile ("swi %[swi_no]\n\t" : : [swi_no] "I" (n) : "lr");
  38
  39 void cpu_DumpRegs(regs_t *regs);
  40
  41 static inline int GetCPUNumber() {
  42     int tmp;
  43     asm volatile (" mrc p15, 0, %0, c0, c0, 5 " : "=r" (tmp));
  44     return tmp & 3;
  45 }
  46
  47 static inline void SendIPISelf(uint32_t ipi, uint32_t ipi_param)
  48 {
  49     int cpu = GetCPUNumber();
  50     __arm_arosintern.ARMI_SendIPI((ipi & 0x0fffffff) | (cpu << 28), ipi_param, (1 << cpu));
  51 }
  52
  53 static inline void SendIPIOthers(uint32_t ipi, uint32_t ipi_param)
  54 {
  55     int cpu = GetCPUNumber();
  56     __arm_arosintern.ARMI_SendIPI((ipi & 0x0fffffff) | (cpu << 28), ipi_param, 0xf & ~(1 << cpu));
  57 }
  58
  59 static inline void SendIPIAll(uint32_t ipi, uint32_t ipi_param)
  60 {
  61     int cpu = GetCPUNumber();
  62     __arm_arosintern.ARMI_SendIPI((ipi & 0x0fffffff) | (cpu << 28), ipi_param, 0xf);
  63 }
  64
  65 #endif /* CPU_ARM_H_ */