sq.h 1.2 KB

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  1. /*
  2. * include/asm-sh/cpu-sh4/sq.h
  3. *
  4. * Copyright (C) 2001, 2002, 2003 Paul Mundt
  5. * Copyright (C) 2001, 2002 M. R. Brown
  6. *
  7. * This file is subject to the terms and conditions of the GNU General Public
  8. * License. See the file "COPYING" in the main directory of this archive
  9. * for more details.
  10. */
  11. #ifndef __ASM_CPU_SH4_SQ_H
  12. #define __ASM_CPU_SH4_SQ_H
  13. #include <asm/addrspace.h>
  14. #include <asm/page.h>
  15. /*
  16. * Store queues range from e0000000-e3fffffc, allowing approx. 64MB to be
  17. * mapped to any physical address space. Since data is written (and aligned)
  18. * to 32-byte boundaries, we need to be sure that all allocations are aligned.
  19. */
  20. #define SQ_SIZE 32
  21. #define SQ_ALIGN_MASK (~(SQ_SIZE - 1))
  22. #define SQ_ALIGN(addr) (((addr)+SQ_SIZE-1) & SQ_ALIGN_MASK)
  23. #define SQ_QACR0 (P4SEG_REG_BASE + 0x38)
  24. #define SQ_QACR1 (P4SEG_REG_BASE + 0x3c)
  25. #define SQ_ADDRMAX (P4SEG_STORE_QUE + 0x04000000)
  26. /* arch/sh/kernel/cpu/sh4/sq.c */
  27. unsigned long sq_remap(unsigned long phys, unsigned int size,
  28. const char *name, pgprot_t prot);
  29. void sq_unmap(unsigned long vaddr);
  30. void sq_flush_range(unsigned long start, unsigned int len);
  31. #endif /* __ASM_CPU_SH4_SQ_H */