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- /* n2_asm.S: Hypervisor calls for NCS support.
- *
- * Copyright (C) 2009 David S. Miller <davem@davemloft.net>
- */
- #include <linux/linkage.h>
- #include <asm/hypervisor.h>
- #include "n2_core.h"
- /* o0: queue type
- * o1: RA of queue
- * o2: num entries in queue
- * o3: address of queue handle return
- */
- ENTRY(sun4v_ncs_qconf)
- mov HV_FAST_NCS_QCONF, %o5
- ta HV_FAST_TRAP
- stx %o1, [%o3]
- retl
- nop
- ENDPROC(sun4v_ncs_qconf)
- /* %o0: queue handle
- * %o1: address of queue type return
- * %o2: address of queue base address return
- * %o3: address of queue num entries return
- */
- ENTRY(sun4v_ncs_qinfo)
- mov %o1, %g1
- mov %o2, %g2
- mov %o3, %g3
- mov HV_FAST_NCS_QINFO, %o5
- ta HV_FAST_TRAP
- stx %o1, [%g1]
- stx %o2, [%g2]
- stx %o3, [%g3]
- retl
- nop
- ENDPROC(sun4v_ncs_qinfo)
- /* %o0: queue handle
- * %o1: address of head offset return
- */
- ENTRY(sun4v_ncs_gethead)
- mov %o1, %o2
- mov HV_FAST_NCS_GETHEAD, %o5
- ta HV_FAST_TRAP
- stx %o1, [%o2]
- retl
- nop
- ENDPROC(sun4v_ncs_gethead)
- /* %o0: queue handle
- * %o1: address of tail offset return
- */
- ENTRY(sun4v_ncs_gettail)
- mov %o1, %o2
- mov HV_FAST_NCS_GETTAIL, %o5
- ta HV_FAST_TRAP
- stx %o1, [%o2]
- retl
- nop
- ENDPROC(sun4v_ncs_gettail)
- /* %o0: queue handle
- * %o1: new tail offset
- */
- ENTRY(sun4v_ncs_settail)
- mov HV_FAST_NCS_SETTAIL, %o5
- ta HV_FAST_TRAP
- retl
- nop
- ENDPROC(sun4v_ncs_settail)
- /* %o0: queue handle
- * %o1: address of devino return
- */
- ENTRY(sun4v_ncs_qhandle_to_devino)
- mov %o1, %o2
- mov HV_FAST_NCS_QHANDLE_TO_DEVINO, %o5
- ta HV_FAST_TRAP
- stx %o1, [%o2]
- retl
- nop
- ENDPROC(sun4v_ncs_qhandle_to_devino)
- /* %o0: queue handle
- * %o1: new head offset
- */
- ENTRY(sun4v_ncs_sethead_marker)
- mov HV_FAST_NCS_SETHEAD_MARKER, %o5
- ta HV_FAST_TRAP
- retl
- nop
- ENDPROC(sun4v_ncs_sethead_marker)
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