liquidLevelOperation.h 2.8 KB

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  1. #ifndef _ASM_IA64_SAL_H
  2. #define _ASM_IA64_SAL_H
  3. /*
  4. * System Abstraction Layer definitions.
  5. *
  6. * This is based on version 2.5 of the manual "IA-64 System
  7. * Abstraction Layer".
  8. *
  9. * Copyright (C) 2001 Intel
  10. * Copyright (C) 2002 Jenna Hall <jenna.s.hall@intel.com>
  11. * Copyright (C) 2001 Fred Lewis <frederick.v.lewis@intel.com>
  12. * Copyright (C) 1998, 1999, 2001, 2003 Hewlett-Packard Co
  13. * David Mosberger-Tang <davidm@hpl.hp.com>
  14. * Copyright (C) 1999 Srinivasa Prasad Thirumalachar <sprasad@sprasad.engr.sgi.com>
  15. *
  16. * 02/01/04 J. Hall Updated Error Record Structures to conform to July 2001
  17. * revision of the SAL spec.
  18. * 01/01/03 fvlewis Updated Error Record Structures to conform with Nov. 2000
  19. * revision of the SAL spec.
  20. * 99/09/29 davidm Updated for SAL 2.6.
  21. * 00/03/29 cfleck Updated SAL Error Logging info for processor (SAL 2.6)
  22. * (plus examples of platform error info structures from smariset @ Intel)
  23. */
  24. #define IA64_SAL_PLATFORM_FEATURE_BUS_LOCK_BIT 0
  25. #define IA64_SAL_PLATFORM_FEATURE_IRQ_REDIR_HINT_BIT 1
  26. #define IA64_SAL_PLATFORM_FEATURE_IPI_REDIR_HINT_BIT 2
  27. #define IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT_BIT 3
  28. #define IA64_SAL_PLATFORM_FEATURE_BUS_LOCK (1<<IA64_SAL_PLATFORM_FEATURE_BUS_LOCK_BIT)
  29. #define IA64_SAL_PLATFORM_FEATURE_IRQ_REDIR_HINT (1<<IA64_SAL_PLATFORM_FEATURE_IRQ_REDIR_HINT_BIT)
  30. #define IA64_SAL_PLATFORM_FEATURE_IPI_REDIR_HINT (1<<IA64_SAL_PLATFORM_FEATURE_IPI_REDIR_HINT_BIT)
  31. #define IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT (1<<IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT_BIT)
  32. #ifndef __ASSEMBLY__
  33. #include <linux/bcd.h>
  34. #include <linux/spinlock.h>
  35. #include <linux/efi.h>
  36. #include <asm/pal.h>
  37. #include <asm/fpu.h>
  38. extern spinlock_t sal_lock;
  39. /* SAL spec _requires_ eight args for each call. */
  40. #define __IA64_FW_CALL(entry,result,a0,a1,a2,a3,a4,a5,a6,a7) \
  41. result = (*entry)(a0,a1,a2,a3,a4,a5,a6,a7)
  42. # define IA64_FW_CALL(entry,result,args...) do { \
  43. unsigned long __ia64_sc_flags; \
  44. struct ia64_fpreg __ia64_sc_fr[6]; \
  45. ia64_save_scratch_fpregs(__ia64_sc_fr); \
  46. spin_lock_irqsave(&sal_lock, __ia64_sc_flags); \
  47. __IA64_FW_CALL(entry, result, args); \
  48. spin_unlock_irqrestore(&sal_lock, __ia64_sc_flags); \
  49. ia64_load_scratch_fpregs(__ia64_sc_fr); \
  50. } while (0)
  51. # define SAL_CALL(result,args...) \
  52. IA64_FW_CALL(ia64_sal, result, args);
  53. # define SAL_CALL_NOLOCK(result,args...) do { \
  54. unsigned long __ia64_scn_flags; \
  55. struct ia64_fpreg __ia64_scn_fr[6]; \
  56. ia64_save_scratch_fpregs(__ia64_scn_fr); \
  57. local_irq_save(__ia64_scn_flags); \
  58. __IA64_FW_CALL(ia64_sal, result, args); \
  59. local_irq_restore(__ia64_scn_flags); \
  60. ia64_load_scratch_fpregs(__ia64_scn_fr); \
  61. } while (0)
  62. # define SAL_CALL_REENTRANT(result,args...) do { \
  63. struct ia64_fpreg __ia64_scs_fr[6]; \
  64. ia64_save_scratch_fpregs(__ia64_scs_fr); \
  65. preempt_disable(); \
  66. __IA64_FW_CALL(ia64_sal, result, args); \