mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-09-22 04:31:58 +08:00
sparc64: Oracle DAX infrastructure
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
David S. Miller
parent
0d665e7b10
commit
c2b5934ff5
@ -76,6 +76,10 @@
|
||||
#define HV_ETOOMANY 15 /* Too many items specified */
|
||||
#define HV_ECHANNEL 16 /* Invalid LDC channel */
|
||||
#define HV_EBUSY 17 /* Resource busy */
|
||||
#define HV_EUNAVAILABLE 23 /* Resource or operation not
|
||||
* currently available, but may
|
||||
* become available in the future
|
||||
*/
|
||||
|
||||
/* mach_exit()
|
||||
* TRAP: HV_FAST_TRAP
|
||||
@ -941,6 +945,139 @@ unsigned long sun4v_mmu_map_perm_addr(unsigned long vaddr,
|
||||
*/
|
||||
#define HV_FAST_MEM_SYNC 0x32
|
||||
|
||||
/* Coprocessor services
|
||||
*
|
||||
* M7 and later processors provide an on-chip coprocessor which
|
||||
* accelerates database operations, and is known internally as
|
||||
* DAX.
|
||||
*/
|
||||
|
||||
/* ccb_submit()
|
||||
* TRAP: HV_FAST_TRAP
|
||||
* FUNCTION: HV_CCB_SUBMIT
|
||||
* ARG0: address of CCB array
|
||||
* ARG1: size (in bytes) of CCB array being submitted
|
||||
* ARG2: flags
|
||||
* ARG3: reserved
|
||||
* RET0: status (success or error code)
|
||||
* RET1: size (in bytes) of CCB array that was accepted (might be less
|
||||
* than arg1)
|
||||
* RET2: status data
|
||||
* if status == ENOMAP or ENOACCESS, identifies the VA in question
|
||||
* if status == EUNAVAILBLE, unavailable code
|
||||
* RET3: reserved
|
||||
*
|
||||
* ERRORS: EOK successful submission (check size)
|
||||
* EWOULDBLOCK could not finish submissions, try again
|
||||
* EBADALIGN array not 64B aligned or size not 64B multiple
|
||||
* ENORADDR invalid RA for array or in CCB
|
||||
* ENOMAP could not translate address (see status data)
|
||||
* EINVAL invalid ccb or arguments
|
||||
* ETOOMANY too many ccbs with all-or-nothing flag
|
||||
* ENOACCESS guest has no access to submit ccbs or address
|
||||
* in CCB does not have correct permissions (check
|
||||
* status data)
|
||||
* EUNAVAILABLE ccb operation could not be performed at this
|
||||
* time (check status data)
|
||||
* Status data codes:
|
||||
* 0 - exact CCB could not be executed
|
||||
* 1 - CCB opcode cannot be executed
|
||||
* 2 - CCB version cannot be executed
|
||||
* 3 - vcpu cannot execute CCBs
|
||||
* 4 - no CCBs can be executed
|
||||
*/
|
||||
|
||||
#define HV_CCB_SUBMIT 0x34
|
||||
#ifndef __ASSEMBLY__
|
||||
unsigned long sun4v_ccb_submit(unsigned long ccb_buf,
|
||||
unsigned long len,
|
||||
unsigned long flags,
|
||||
unsigned long reserved,
|
||||
void *submitted_len,
|
||||
void *status_data);
|
||||
#endif
|
||||
|
||||
/* flags (ARG2) */
|
||||
#define HV_CCB_QUERY_CMD BIT(1)
|
||||
#define HV_CCB_ARG0_TYPE_REAL 0UL
|
||||
#define HV_CCB_ARG0_TYPE_PRIMARY BIT(4)
|
||||
#define HV_CCB_ARG0_TYPE_SECONDARY BIT(5)
|
||||
#define HV_CCB_ARG0_TYPE_NUCLEUS GENMASK(5, 4)
|
||||
#define HV_CCB_ARG0_PRIVILEGED BIT(6)
|
||||
#define HV_CCB_ALL_OR_NOTHING BIT(7)
|
||||
#define HV_CCB_QUEUE_INFO BIT(8)
|
||||
#define HV_CCB_VA_REJECT 0UL
|
||||
#define HV_CCB_VA_SECONDARY BIT(13)
|
||||
#define HV_CCB_VA_NUCLEUS GENMASK(13, 12)
|
||||
#define HV_CCB_VA_PRIVILEGED BIT(14)
|
||||
#define HV_CCB_VA_READ_ADI_DISABLE BIT(15) /* DAX2 only */
|
||||
|
||||
/* ccb_info()
|
||||
* TRAP: HV_FAST_TRAP
|
||||
* FUNCTION: HV_CCB_INFO
|
||||
* ARG0: real address of CCB completion area
|
||||
* RET0: status (success or error code)
|
||||
* RET1: info array
|
||||
* - RET1[0]: CCB state
|
||||
* - RET1[1]: dax unit
|
||||
* - RET1[2]: queue number
|
||||
* - RET1[3]: queue position
|
||||
*
|
||||
* ERRORS: EOK operation successful
|
||||
* EBADALIGN address not 64B aligned
|
||||
* ENORADDR RA in address not valid
|
||||
* EINVAL CA not valid
|
||||
* EWOULDBLOCK info not available for this CCB currently, try
|
||||
* again
|
||||
* ENOACCESS guest cannot use dax
|
||||
*/
|
||||
|
||||
#define HV_CCB_INFO 0x35
|
||||
#ifndef __ASSEMBLY__
|
||||
unsigned long sun4v_ccb_info(unsigned long ca,
|
||||
void *info_arr);
|
||||
#endif
|
||||
|
||||
/* info array byte offsets (RET1) */
|
||||
#define CCB_INFO_OFFSET_CCB_STATE 0
|
||||
#define CCB_INFO_OFFSET_DAX_UNIT 2
|
||||
#define CCB_INFO_OFFSET_QUEUE_NUM 4
|
||||
#define CCB_INFO_OFFSET_QUEUE_POS 6
|
||||
|
||||
/* CCB state (RET1[0]) */
|
||||
#define HV_CCB_STATE_COMPLETED 0
|
||||
#define HV_CCB_STATE_ENQUEUED 1
|
||||
#define HV_CCB_STATE_INPROGRESS 2
|
||||
#define HV_CCB_STATE_NOTFOUND 3
|
||||
|
||||
/* ccb_kill()
|
||||
* TRAP: HV_FAST_TRAP
|
||||
* FUNCTION: HV_CCB_KILL
|
||||
* ARG0: real address of CCB completion area
|
||||
* RET0: status (success or error code)
|
||||
* RET1: CCB kill status
|
||||
*
|
||||
* ERRORS: EOK operation successful
|
||||
* EBADALIGN address not 64B aligned
|
||||
* ENORADDR RA in address not valid
|
||||
* EINVAL CA not valid
|
||||
* EWOULDBLOCK kill not available for this CCB currently, try
|
||||
* again
|
||||
* ENOACCESS guest cannot use dax
|
||||
*/
|
||||
|
||||
#define HV_CCB_KILL 0x36
|
||||
#ifndef __ASSEMBLY__
|
||||
unsigned long sun4v_ccb_kill(unsigned long ca,
|
||||
void *kill_status);
|
||||
#endif
|
||||
|
||||
/* CCB kill status (RET1) */
|
||||
#define HV_CCB_KILL_COMPLETED 0
|
||||
#define HV_CCB_KILL_DEQUEUED 1
|
||||
#define HV_CCB_KILL_KILLED 2
|
||||
#define HV_CCB_KILL_NOTFOUND 3
|
||||
|
||||
/* Time of day services.
|
||||
*
|
||||
* The hypervisor maintains the time of day on a per-domain basis.
|
||||
@ -3355,6 +3492,7 @@ unsigned long sun4v_m7_set_perfreg(unsigned long reg_num,
|
||||
#define HV_GRP_SDIO_ERR 0x0109
|
||||
#define HV_GRP_REBOOT_DATA 0x0110
|
||||
#define HV_GRP_ATU 0x0111
|
||||
#define HV_GRP_DAX 0x0113
|
||||
#define HV_GRP_M7_PERF 0x0114
|
||||
#define HV_GRP_NIAG_PERF 0x0200
|
||||
#define HV_GRP_FIRE_PERF 0x0201
|
||||
|
||||
@ -41,6 +41,7 @@ static struct api_info api_table[] = {
|
||||
{ .group = HV_GRP_SDIO_ERR, },
|
||||
{ .group = HV_GRP_REBOOT_DATA, },
|
||||
{ .group = HV_GRP_ATU, .flags = FLAG_PRE_API },
|
||||
{ .group = HV_GRP_DAX, },
|
||||
{ .group = HV_GRP_NIAG_PERF, .flags = FLAG_PRE_API },
|
||||
{ .group = HV_GRP_FIRE_PERF, },
|
||||
{ .group = HV_GRP_N2_CPU, },
|
||||
|
||||
@ -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)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user