smp.h 755 B

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  1. /*
  2. * This file is based ARM realview platform.
  3. * Copyright (C) ARM Limited.
  4. *
  5. * This file is licensed under the terms of the GNU General Public
  6. * License version 2. This program is licensed "as is" without any
  7. * warranty of any kind, whether express or implied.
  8. */
  9. #ifndef ASMARM_ARCH_SMP_H
  10. #define ASMARM_ARCH_SMP_H
  11. #include <asm/hardware/gic.h>
  12. /* This is required to wakeup the secondary core */
  13. extern void u8500_secondary_startup(void);
  14. #define hard_smp_processor_id() \
  15. ({ \
  16. unsigned int cpunum; \
  17. __asm__("mrc p15, 0, %0, c0, c0, 5" \
  18. : "=r" (cpunum)); \
  19. cpunum &= 0x0F; \
  20. })
  21. /*
  22. * We use IRQ1 as the IPI
  23. */
  24. static inline void smp_cross_call(const struct cpumask *mask)
  25. {
  26. gic_raise_softirq(mask, 1);
  27. }
  28. #endif