Files
carbon 0545e9dc6d init version 2024-05-07
commit d1edce71135cc6d98c0a4b5729774542b676e769
Author: sophgo-forum-service <forum_service@sophgo.com>
Date:   Fri Mar 15 16:07:33 2024 +0800

    [fix] recommend using ssh method to clone repo.
    [fix] fix sensor driver repo branch name.
2024-05-07 19:36:36 +08:00

97 lines
1.8 KiB
ArmAsm

/* SPDX-License-Identifier: GPL-2.0 */
/* 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)