diff options
Diffstat (limited to 'arch/sparc/kernel/hvcalls.S')
| -rw-r--r-- | arch/sparc/kernel/hvcalls.S | 930 |
1 files changed, 930 insertions, 0 deletions
diff --git a/arch/sparc/kernel/hvcalls.S b/arch/sparc/kernel/hvcalls.S new file mode 100644 index 000000000..2f865a464 --- /dev/null +++ b/arch/sparc/kernel/hvcalls.S @@ -0,0 +1,930 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + /* %o0: devhandle + * %o1: devino + * + * returns %o0: sysino + */ +ENTRY(sun4v_devino_to_sysino) + mov HV_FAST_INTR_DEVINO2SYSINO, %o5 + ta HV_FAST_TRAP + retl + mov %o1, %o0 +ENDPROC(sun4v_devino_to_sysino) + + /* %o0: sysino + * + * returns %o0: intr_enabled (HV_INTR_{DISABLED,ENABLED}) + */ +ENTRY(sun4v_intr_getenabled) + mov HV_FAST_INTR_GETENABLED, %o5 + ta HV_FAST_TRAP + retl + mov %o1, %o0 +ENDPROC(sun4v_intr_getenabled) + + /* %o0: sysino + * %o1: intr_enabled (HV_INTR_{DISABLED,ENABLED}) + */ +ENTRY(sun4v_intr_setenabled) + mov HV_FAST_INTR_SETENABLED, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_intr_setenabled) + + /* %o0: sysino + * + * returns %o0: intr_state (HV_INTR_STATE_*) + */ +ENTRY(sun4v_intr_getstate) + mov HV_FAST_INTR_GETSTATE, %o5 + ta HV_FAST_TRAP + retl + mov %o1, %o0 +ENDPROC(sun4v_intr_getstate) + + /* %o0: sysino + * %o1: intr_state (HV_INTR_STATE_*) + */ +ENTRY(sun4v_intr_setstate) + mov HV_FAST_INTR_SETSTATE, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_intr_setstate) + + /* %o0: sysino + * + * returns %o0: cpuid + */ +ENTRY(sun4v_intr_gettarget) + mov HV_FAST_INTR_GETTARGET, %o5 + ta HV_FAST_TRAP + retl + mov %o1, %o0 +ENDPROC(sun4v_intr_gettarget) + + /* %o0: sysino + * %o1: cpuid + */ +ENTRY(sun4v_intr_settarget) + mov HV_FAST_INTR_SETTARGET, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_intr_settarget) + + /* %o0: cpuid + * %o1: pc + * %o2: rtba + * %o3: arg0 + * + * returns %o0: status + */ +ENTRY(sun4v_cpu_start) + mov HV_FAST_CPU_START, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_cpu_start) + + /* %o0: cpuid + * + * returns %o0: status + */ +ENTRY(sun4v_cpu_stop) + mov HV_FAST_CPU_STOP, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_cpu_stop) + + /* returns %o0: status */ +ENTRY(sun4v_cpu_yield) + mov HV_FAST_CPU_YIELD, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_cpu_yield) + + /* %o0: cpuid + * + * returns %o0: status + */ +ENTRY(sun4v_cpu_poke) + mov HV_FAST_CPU_POKE, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_cpu_poke) + + /* %o0: type + * %o1: queue paddr + * %o2: num queue entries + * + * returns %o0: status + */ +ENTRY(sun4v_cpu_qconf) + mov HV_FAST_CPU_QCONF, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_cpu_qconf) + + /* %o0: num cpus in cpu list + * %o1: cpu list paddr + * %o2: mondo block paddr + * + * returns %o0: status + */ +ENTRY(sun4v_cpu_mondo_send) + mov HV_FAST_CPU_MONDO_SEND, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_cpu_mondo_send) + + /* %o0: CPU ID + * + * returns %o0: -status if status non-zero, else + * %o0: cpu state as HV_CPU_STATE_* + */ +ENTRY(sun4v_cpu_state) + mov HV_FAST_CPU_STATE, %o5 + ta HV_FAST_TRAP + brnz,pn %o0, 1f + sub %g0, %o0, %o0 + mov %o1, %o0 +1: retl + nop +ENDPROC(sun4v_cpu_state) + + /* %o0: virtual address + * %o1: must be zero + * %o2: TTE + * %o3: HV_MMU_* flags + * + * returns %o0: status + */ +ENTRY(sun4v_mmu_map_perm_addr) + mov HV_FAST_MMU_MAP_PERM_ADDR, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_mmu_map_perm_addr) + + /* %o0: number of TSB descriptions + * %o1: TSB descriptions real address + * + * returns %o0: status + */ +ENTRY(sun4v_mmu_tsb_ctx0) + mov HV_FAST_MMU_TSB_CTX0, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_mmu_tsb_ctx0) + + /* %o0: API group number + * %o1: pointer to unsigned long major number storage + * %o2: pointer to unsigned long minor number storage + * + * returns %o0: status + */ +ENTRY(sun4v_get_version) + mov HV_CORE_GET_VER, %o5 + mov %o1, %o3 + mov %o2, %o4 + ta HV_CORE_TRAP + stx %o1, [%o3] + retl + stx %o2, [%o4] +ENDPROC(sun4v_get_version) + + /* %o0: API group number + * %o1: desired major number + * %o2: desired minor number + * %o3: pointer to unsigned long actual minor number storage + * + * returns %o0: status + */ +ENTRY(sun4v_set_version) + mov HV_CORE_SET_VER, %o5 + mov %o3, %o4 + ta HV_CORE_TRAP + retl + stx %o1, [%o4] +ENDPROC(sun4v_set_version) + + /* %o0: pointer to unsigned long time + * + * returns %o0: status + */ +ENTRY(sun4v_tod_get) + mov %o0, %o4 + mov HV_FAST_TOD_GET, %o5 + ta HV_FAST_TRAP + stx %o1, [%o4] + retl + nop +ENDPROC(sun4v_tod_get) + + /* %o0: time + * + * returns %o0: status + */ +ENTRY(sun4v_tod_set) + mov HV_FAST_TOD_SET, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_tod_set) + + /* %o0: pointer to unsigned long status + * + * returns %o0: signed character + */ +ENTRY(sun4v_con_getchar) + mov %o0, %o4 + mov HV_FAST_CONS_GETCHAR, %o5 + clr %o0 + clr %o1 + ta HV_FAST_TRAP + stx %o0, [%o4] + retl + sra %o1, 0, %o0 +ENDPROC(sun4v_con_getchar) + + /* %o0: signed long character + * + * returns %o0: status + */ +ENTRY(sun4v_con_putchar) + mov HV_FAST_CONS_PUTCHAR, %o5 + ta HV_FAST_TRAP + retl + sra %o0, 0, %o0 +ENDPROC(sun4v_con_putchar) + + /* %o0: buffer real address + * %o1: buffer size + * %o2: pointer to unsigned long bytes_read + * + * returns %o0: status + */ +ENTRY(sun4v_con_read) + mov %o2, %o4 + mov HV_FAST_CONS_READ, %o5 + ta HV_FAST_TRAP + brnz %o0, 1f + cmp %o1, -1 /* break */ + be,a,pn %icc, 1f + mov %o1, %o0 + cmp %o1, -2 /* hup */ + be,a,pn %icc, 1f + mov %o1, %o0 + stx %o1, [%o4] +1: retl + nop +ENDPROC(sun4v_con_read) + + /* %o0: buffer real address + * %o1: buffer size + * %o2: pointer to unsigned long bytes_written + * + * returns %o0: status + */ +ENTRY(sun4v_con_write) + mov %o2, %o4 + mov HV_FAST_CONS_WRITE, %o5 + ta HV_FAST_TRAP + stx %o1, [%o4] + retl + nop +ENDPROC(sun4v_con_write) + + /* %o0: soft state + * %o1: address of description string + * + * returns %o0: status + */ +ENTRY(sun4v_mach_set_soft_state) + mov HV_FAST_MACH_SET_SOFT_STATE, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_mach_set_soft_state) + + /* %o0: exit code + * + * Does not return. + */ +ENTRY(sun4v_mach_exit) + mov HV_FAST_MACH_EXIT, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_mach_exit) + + /* %o0: buffer real address + * %o1: buffer length + * %o2: pointer to unsigned long real_buf_len + * + * returns %o0: status + */ +ENTRY(sun4v_mach_desc) + mov %o2, %o4 + mov HV_FAST_MACH_DESC, %o5 + ta HV_FAST_TRAP + stx %o1, [%o4] + retl + nop +ENDPROC(sun4v_mach_desc) + + /* %o0: new timeout in milliseconds + * %o1: pointer to unsigned long orig_timeout + * + * returns %o0: status + */ +ENTRY(sun4v_mach_set_watchdog) + mov %o1, %o4 + mov HV_FAST_MACH_SET_WATCHDOG, %o5 + ta HV_FAST_TRAP + brnz,a,pn %o4, 0f + stx %o1, [%o4] +0: retl + nop +ENDPROC(sun4v_mach_set_watchdog) +EXPORT_SYMBOL(sun4v_mach_set_watchdog) + + /* No inputs and does not return. */ +ENTRY(sun4v_mach_sir) + mov %o1, %o4 + mov HV_FAST_MACH_SIR, %o5 + ta HV_FAST_TRAP + stx %o1, [%o4] + retl + nop +ENDPROC(sun4v_mach_sir) + + /* %o0: channel + * %o1: ra + * %o2: num_entries + * + * returns %o0: status + */ +ENTRY(sun4v_ldc_tx_qconf) + mov HV_FAST_LDC_TX_QCONF, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_ldc_tx_qconf) + + /* %o0: channel + * %o1: pointer to unsigned long ra + * %o2: pointer to unsigned long num_entries + * + * returns %o0: status + */ +ENTRY(sun4v_ldc_tx_qinfo) + mov %o1, %g1 + mov %o2, %g2 + mov HV_FAST_LDC_TX_QINFO, %o5 + ta HV_FAST_TRAP + stx %o1, [%g1] + stx %o2, [%g2] + retl + nop +ENDPROC(sun4v_ldc_tx_qinfo) + + /* %o0: channel + * %o1: pointer to unsigned long head_off + * %o2: pointer to unsigned long tail_off + * %o2: pointer to unsigned long chan_state + * + * returns %o0: status + */ +ENTRY(sun4v_ldc_tx_get_state) + mov %o1, %g1 + mov %o2, %g2 + mov %o3, %g3 + mov HV_FAST_LDC_TX_GET_STATE, %o5 + ta HV_FAST_TRAP + stx %o1, [%g1] + stx %o2, [%g2] + stx %o3, [%g3] + retl + nop +ENDPROC(sun4v_ldc_tx_get_state) + + /* %o0: channel + * %o1: tail_off + * + * returns %o0: status + */ +ENTRY(sun4v_ldc_tx_set_qtail) + mov HV_FAST_LDC_TX_SET_QTAIL, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_ldc_tx_set_qtail) + + /* %o0: channel + * %o1: ra + * %o2: num_entries + * + * returns %o0: status + */ +ENTRY(sun4v_ldc_rx_qconf) + mov HV_FAST_LDC_RX_QCONF, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_ldc_rx_qconf) + + /* %o0: channel + * %o1: pointer to unsigned long ra + * %o2: pointer to unsigned long num_entries + * + * returns %o0: status + */ +ENTRY(sun4v_ldc_rx_qinfo) + mov %o1, %g1 + mov %o2, %g2 + mov HV_FAST_LDC_RX_QINFO, %o5 + ta HV_FAST_TRAP + stx %o1, [%g1] + stx %o2, [%g2] + retl + nop +ENDPROC(sun4v_ldc_rx_qinfo) + + /* %o0: channel + * %o1: pointer to unsigned long head_off + * %o2: pointer to unsigned long tail_off + * %o2: pointer to unsigned long chan_state + * + * returns %o0: status + */ +ENTRY(sun4v_ldc_rx_get_state) + mov %o1, %g1 + mov %o2, %g2 + mov %o3, %g3 + mov HV_FAST_LDC_RX_GET_STATE, %o5 + ta HV_FAST_TRAP + stx %o1, [%g1] + stx %o2, [%g2] + stx %o3, [%g3] + retl + nop +ENDPROC(sun4v_ldc_rx_get_state) + + /* %o0: channel + * %o1: head_off + * + * returns %o0: status + */ +ENTRY(sun4v_ldc_rx_set_qhead) + mov HV_FAST_LDC_RX_SET_QHEAD, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_ldc_rx_set_qhead) + + /* %o0: channel + * %o1: ra + * %o2: num_entries + * + * returns %o0: status + */ +ENTRY(sun4v_ldc_set_map_table) + mov HV_FAST_LDC_SET_MAP_TABLE, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_ldc_set_map_table) + + /* %o0: channel + * %o1: pointer to unsigned long ra + * %o2: pointer to unsigned long num_entries + * + * returns %o0: status + */ +ENTRY(sun4v_ldc_get_map_table) + mov %o1, %g1 + mov %o2, %g2 + mov HV_FAST_LDC_GET_MAP_TABLE, %o5 + ta HV_FAST_TRAP + stx %o1, [%g1] + stx %o2, [%g2] + retl + nop +ENDPROC(sun4v_ldc_get_map_table) + + /* %o0: channel + * %o1: dir_code + * %o2: tgt_raddr + * %o3: lcl_raddr + * %o4: len + * %o5: pointer to unsigned long actual_len + * + * returns %o0: status + */ +ENTRY(sun4v_ldc_copy) + mov %o5, %g1 + mov HV_FAST_LDC_COPY, %o5 + ta HV_FAST_TRAP + stx %o1, [%g1] + retl + nop +ENDPROC(sun4v_ldc_copy) + + /* %o0: channel + * %o1: cookie + * %o2: pointer to unsigned long ra + * %o3: pointer to unsigned long perm + * + * returns %o0: status + */ +ENTRY(sun4v_ldc_mapin) + mov %o2, %g1 + mov %o3, %g2 + mov HV_FAST_LDC_MAPIN, %o5 + ta HV_FAST_TRAP + stx %o1, [%g1] + stx %o2, [%g2] + retl + nop +ENDPROC(sun4v_ldc_mapin) + + /* %o0: ra + * + * returns %o0: status + */ +ENTRY(sun4v_ldc_unmap) + mov HV_FAST_LDC_UNMAP, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_ldc_unmap) + + /* %o0: channel + * %o1: cookie + * %o2: mte_cookie + * + * returns %o0: status + */ +ENTRY(sun4v_ldc_revoke) + mov HV_FAST_LDC_REVOKE, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_ldc_revoke) + + /* %o0: device handle + * %o1: device INO + * %o2: pointer to unsigned long cookie + * + * returns %o0: status + */ +ENTRY(sun4v_vintr_get_cookie) + mov %o2, %g1 + mov HV_FAST_VINTR_GET_COOKIE, %o5 + ta HV_FAST_TRAP + stx %o1, [%g1] + retl + nop +ENDPROC(sun4v_vintr_get_cookie) + + /* %o0: device handle + * %o1: device INO + * %o2: cookie + * + * returns %o0: status + */ +ENTRY(sun4v_vintr_set_cookie) + mov HV_FAST_VINTR_SET_COOKIE, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_vintr_set_cookie) + + /* %o0: device handle + * %o1: device INO + * %o2: pointer to unsigned long valid_state + * + * returns %o0: status + */ +ENTRY(sun4v_vintr_get_valid) + mov %o2, %g1 + mov HV_FAST_VINTR_GET_VALID, %o5 + ta HV_FAST_TRAP + stx %o1, [%g1] + retl + nop +ENDPROC(sun4v_vintr_get_valid) + + /* %o0: device handle + * %o1: device INO + * %o2: valid_state + * + * returns %o0: status + */ +ENTRY(sun4v_vintr_set_valid) + mov HV_FAST_VINTR_SET_VALID, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_vintr_set_valid) + + /* %o0: device handle + * %o1: device INO + * %o2: pointer to unsigned long state + * + * returns %o0: status + */ +ENTRY(sun4v_vintr_get_state) + mov %o2, %g1 + mov HV_FAST_VINTR_GET_STATE, %o5 + ta HV_FAST_TRAP + stx %o1, [%g1] + retl + nop +ENDPROC(sun4v_vintr_get_state) + + /* %o0: device handle + * %o1: device INO + * %o2: state + * + * returns %o0: status + */ +ENTRY(sun4v_vintr_set_state) + mov HV_FAST_VINTR_SET_STATE, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_vintr_set_state) + + /* %o0: device handle + * %o1: device INO + * %o2: pointer to unsigned long cpuid + * + * returns %o0: status + */ +ENTRY(sun4v_vintr_get_target) + mov %o2, %g1 + mov HV_FAST_VINTR_GET_TARGET, %o5 + ta HV_FAST_TRAP + stx %o1, [%g1] + retl + nop +ENDPROC(sun4v_vintr_get_target) + + /* %o0: device handle + * %o1: device INO + * %o2: cpuid + * + * returns %o0: status + */ +ENTRY(sun4v_vintr_set_target) + mov HV_FAST_VINTR_SET_TARGET, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_vintr_set_target) + + /* %o0: NCS sub-function + * %o1: sub-function arg real-address + * %o2: sub-function arg size + * + * returns %o0: status + */ +ENTRY(sun4v_ncs_request) + mov HV_FAST_NCS_REQUEST, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_ncs_request) + +ENTRY(sun4v_svc_send) + save %sp, -192, %sp + mov %i0, %o0 + mov %i1, %o1 + mov %i2, %o2 + mov HV_FAST_SVC_SEND, %o5 + ta HV_FAST_TRAP + stx %o1, [%i3] + ret + restore +ENDPROC(sun4v_svc_send) + +ENTRY(sun4v_svc_recv) + save %sp, -192, %sp + mov %i0, %o0 + mov %i1, %o1 + mov %i2, %o2 + mov HV_FAST_SVC_RECV, %o5 + ta HV_FAST_TRAP + stx %o1, [%i3] + ret + restore +ENDPROC(sun4v_svc_recv) + +ENTRY(sun4v_svc_getstatus) + mov HV_FAST_SVC_GETSTATUS, %o5 + mov %o1, %o4 + ta HV_FAST_TRAP + stx %o1, [%o4] + retl + nop +ENDPROC(sun4v_svc_getstatus) + +ENTRY(sun4v_svc_setstatus) + mov HV_FAST_SVC_SETSTATUS, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_svc_setstatus) + +ENTRY(sun4v_svc_clrstatus) + mov HV_FAST_SVC_CLRSTATUS, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_svc_clrstatus) + +ENTRY(sun4v_mmustat_conf) + mov %o1, %o4 + mov HV_FAST_MMUSTAT_CONF, %o5 + ta HV_FAST_TRAP + stx %o1, [%o4] + retl + nop +ENDPROC(sun4v_mmustat_conf) + +ENTRY(sun4v_mmustat_info) + mov %o0, %o4 + mov HV_FAST_MMUSTAT_INFO, %o5 + ta HV_FAST_TRAP + stx %o1, [%o4] + retl + nop +ENDPROC(sun4v_mmustat_info) + +ENTRY(sun4v_mmu_demap_all) + clr %o0 + clr %o1 + mov HV_MMU_ALL, %o2 + mov HV_FAST_MMU_DEMAP_ALL, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_mmu_demap_all) + +ENTRY(sun4v_niagara_getperf) + mov %o0, %o4 + mov HV_FAST_GET_PERFREG, %o5 + ta HV_FAST_TRAP + stx %o1, [%o4] + retl + nop +ENDPROC(sun4v_niagara_getperf) +EXPORT_SYMBOL(sun4v_niagara_getperf) + +ENTRY(sun4v_niagara_setperf) + mov HV_FAST_SET_PERFREG, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_niagara_setperf) +EXPORT_SYMBOL(sun4v_niagara_setperf) + +ENTRY(sun4v_niagara2_getperf) + mov %o0, %o4 + mov HV_FAST_N2_GET_PERFREG, %o5 + ta HV_FAST_TRAP + stx %o1, [%o4] + retl + nop +ENDPROC(sun4v_niagara2_getperf) +EXPORT_SYMBOL(sun4v_niagara2_getperf) + +ENTRY(sun4v_niagara2_setperf) + mov HV_FAST_N2_SET_PERFREG, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_niagara2_setperf) +EXPORT_SYMBOL(sun4v_niagara2_setperf) + +ENTRY(sun4v_reboot_data_set) + mov HV_FAST_REBOOT_DATA_SET, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_reboot_data_set) + +ENTRY(sun4v_vt_get_perfreg) + mov %o1, %o4 + mov HV_FAST_VT_GET_PERFREG, %o5 + ta HV_FAST_TRAP + stx %o1, [%o4] + retl + nop +ENDPROC(sun4v_vt_get_perfreg) + +ENTRY(sun4v_vt_set_perfreg) + mov HV_FAST_VT_SET_PERFREG, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_vt_set_perfreg) + +ENTRY(sun4v_t5_get_perfreg) + mov %o1, %o4 + mov HV_FAST_T5_GET_PERFREG, %o5 + ta HV_FAST_TRAP + stx %o1, [%o4] + retl + nop +ENDPROC(sun4v_t5_get_perfreg) + +ENTRY(sun4v_t5_set_perfreg) + mov HV_FAST_T5_SET_PERFREG, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_t5_set_perfreg) + +ENTRY(sun4v_m7_get_perfreg) + mov %o1, %o4 + mov HV_FAST_M7_GET_PERFREG, %o5 + ta HV_FAST_TRAP + stx %o1, [%o4] + retl + nop +ENDPROC(sun4v_m7_get_perfreg) + +ENTRY(sun4v_m7_set_perfreg) + mov HV_FAST_M7_SET_PERFREG, %o5 + ta HV_FAST_TRAP + 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) |