Merge tag '9p-for-5.15-rc1' of git://github.com/martinetd/linux

[linux-2.6-microblaze.git] / arch / sparc / kernel / hvcalls.S

diff --git a/arch/sparc/kernel/hvcalls.S b/arch/sparc/kernel/hvcalls.S
index bdfd3d8..2f865a4 100644 (file)
--- a/arch/sparc/kernel/hvcalls.S
+++ b/arch/sparc/kernel/hvcalls.S
@@ -871,3 +871,60 @@ ENTRY(sun4v_m7_set_perfreg)
        retl
        nop
 ENDPROC(sun4v_m7_set_perfreg)
+
+       /* %o0: address of CCB array
+        * %o1: size (in bytes) of CCB array
+        * %o2: flags
+        * %o3: reserved
+        *
+        * returns:
+        * %o0: status
+        * %o1: size (in bytes) of the CCB array that was accepted
+        * %o2: status data
+        * %o3: reserved
+        */
+ENTRY(sun4v_ccb_submit)
+       mov     %o5, %g1
+       mov     HV_CCB_SUBMIT, %o5
+       ta      HV_FAST_TRAP
+       stx     %o1, [%o4]
+       retl
+        stx    %o2, [%g1]
+ENDPROC(sun4v_ccb_submit)
+EXPORT_SYMBOL(sun4v_ccb_submit)
+
+       /* %o0: completion area ra for the ccb to get info
+        *
+        * returns:
+        * %o0: status
+        * %o1: CCB state
+        * %o2: position
+        * %o3: dax unit
+        * %o4: queue
+        */
+ENTRY(sun4v_ccb_info)
+       mov     %o1, %g1
+       mov     HV_CCB_INFO, %o5
+       ta      HV_FAST_TRAP
+       sth     %o1, [%g1 + CCB_INFO_OFFSET_CCB_STATE]
+       sth     %o2, [%g1 + CCB_INFO_OFFSET_QUEUE_POS]
+       sth     %o3, [%g1 + CCB_INFO_OFFSET_DAX_UNIT]
+       retl
+        sth    %o4, [%g1 + CCB_INFO_OFFSET_QUEUE_NUM]
+ENDPROC(sun4v_ccb_info)
+EXPORT_SYMBOL(sun4v_ccb_info)
+
+       /* %o0: completion area ra for the ccb to kill
+        *
+        * returns:
+        * %o0: status
+        * %o1: result of the kill
+        */
+ENTRY(sun4v_ccb_kill)
+       mov     %o1, %g1
+       mov     HV_CCB_KILL, %o5
+       ta      HV_FAST_TRAP
+       retl
+        sth    %o1, [%g1]
+ENDPROC(sun4v_ccb_kill)
+EXPORT_SYMBOL(sun4v_ccb_kill)