xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

sparc64: Oracle DAX infrastructure

Browse Source 
This patch adds hypercall function stubs and C templates for
ccb_submit/info/kill which provide coprocessor services for the Oracle
Data Analytics Accelerator, registration for the DAX api group, and
all the various associated constants.

Signed-off-by: Rob Gardner <rob.gardner@oracle.com>
Signed-off-by: Jonathan Helman <jonathan.helman@oracle.com>
Signed-off-by: Sanath Kumar <sanath099@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rob Gardner
2017-12-05 19:40:42 -07:00
committed by David S. Miller
parent 0d665e7b10
commit c2b5934ff5
3 changed files with 196 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

57
arch/sparc/kernel/hvcalls.S
View File

@@ -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)