drivers/crypto/n2_asm.S

   1 /* n2_asm.S: Hypervisor calls for NCS support.
   2  *
   3  * Copyright (C) 2009 David S. Miller <davem@davemloft.net>
   4  */
   5
   6 #include <linux/linkage.h>
   7 #include <asm/hypervisor.h>
   8 #include "n2_core.h"
   9
  10         /* o0: queue type
  11          * o1: RA of queue
  12          * o2: num entries in queue
  13          * o3: address of queue handle return
  14          */
  15 ENTRY(sun4v_ncs_qconf)
  16         mov     HV_FAST_NCS_QCONF, %o5
  17         ta      HV_FAST_TRAP
  18         stx     %o1, [%o3]
  19         retl
  20          nop
  21 ENDPROC(sun4v_ncs_qconf)
  22
  23         /* %o0: queue handle
  24          * %o1: address of queue type return
  25          * %o2: address of queue base address return
  26          * %o3: address of queue num entries return
  27          */
  28 ENTRY(sun4v_ncs_qinfo)
  29         mov     %o1, %g1
  30         mov     %o2, %g2
  31         mov     %o3, %g3
  32         mov     HV_FAST_NCS_QINFO, %o5
  33         ta      HV_FAST_TRAP
  34         stx     %o1, [%g1]
  35         stx     %o2, [%g2]
  36         stx     %o3, [%g3]
  37         retl
  38          nop
  39 ENDPROC(sun4v_ncs_qinfo)
  40
  41         /* %o0: queue handle
  42          * %o1: address of head offset return
  43          */
  44 ENTRY(sun4v_ncs_gethead)
  45         mov     %o1, %o2
  46         mov     HV_FAST_NCS_GETHEAD, %o5
  47         ta      HV_FAST_TRAP
  48         stx     %o1, [%o2]
  49         retl
  50          nop
  51 ENDPROC(sun4v_ncs_gethead)
  52
  53         /* %o0: queue handle
  54          * %o1: address of tail offset return
  55          */
  56 ENTRY(sun4v_ncs_gettail)
  57         mov     %o1, %o2
  58         mov     HV_FAST_NCS_GETTAIL, %o5
  59         ta      HV_FAST_TRAP
  60         stx     %o1, [%o2]
  61         retl
  62          nop
  63 ENDPROC(sun4v_ncs_gettail)
  64
  65         /* %o0: queue handle
  66          * %o1: new tail offset
  67          */
  68 ENTRY(sun4v_ncs_settail)
  69         mov     HV_FAST_NCS_SETTAIL, %o5
  70         ta      HV_FAST_TRAP
  71         retl
  72          nop
  73 ENDPROC(sun4v_ncs_settail)
  74
  75         /* %o0: queue handle
  76          * %o1: address of devino return
  77          */
  78 ENTRY(sun4v_ncs_qhandle_to_devino)
  79         mov     %o1, %o2
  80         mov     HV_FAST_NCS_QHANDLE_TO_DEVINO, %o5
  81         ta      HV_FAST_TRAP
  82         stx     %o1, [%o2]
  83         retl
  84          nop
  85 ENDPROC(sun4v_ncs_qhandle_to_devino)
  86
  87         /* %o0: queue handle
  88          * %o1: new head offset
  89          */
  90 ENTRY(sun4v_ncs_sethead_marker)
  91         mov     HV_FAST_NCS_SETHEAD_MARKER, %o5
  92         ta      HV_FAST_TRAP
  93         retl
  94          nop
  95 ENDPROC(sun4v_ncs_sethead_marker)