diff options
Diffstat (limited to 'drivers/misc/sgi-xp')
| -rw-r--r-- | drivers/misc/sgi-xp/xpc_sn2.c | 124 |
1 files changed, 65 insertions, 59 deletions
diff --git a/drivers/misc/sgi-xp/xpc_sn2.c b/drivers/misc/sgi-xp/xpc_sn2.c index 9c0c29a2ac8..63fe59a5bfa 100644 --- a/drivers/misc/sgi-xp/xpc_sn2.c +++ b/drivers/misc/sgi-xp/xpc_sn2.c @@ -56,15 +56,15 @@ static char *xpc_remote_copy_buffer_sn2; static void *xpc_remote_copy_buffer_base_sn2; -static struct xpc_vars_sn2 *xpc_vars; /* >>> Add _sn2 suffix? */ -static struct xpc_vars_part_sn2 *xpc_vars_part; /* >>> Add _sn2 suffix? */ +static struct xpc_vars_sn2 *xpc_vars_sn2; +static struct xpc_vars_part_sn2 *xpc_vars_part_sn2; /* SH_IPI_ACCESS shub register value on startup */ -static u64 xpc_sh1_IPI_access; -static u64 xpc_sh2_IPI_access0; -static u64 xpc_sh2_IPI_access1; -static u64 xpc_sh2_IPI_access2; -static u64 xpc_sh2_IPI_access3; +static u64 xpc_sh1_IPI_access_sn2; +static u64 xpc_sh2_IPI_access0_sn2; +static u64 xpc_sh2_IPI_access1_sn2; +static u64 xpc_sh2_IPI_access2_sn2; +static u64 xpc_sh2_IPI_access3_sn2; /* * Change protections to allow IPI operations. @@ -77,13 +77,13 @@ xpc_allow_IPI_ops_sn2(void) /* >>> The following should get moved into SAL. */ if (is_shub2()) { - xpc_sh2_IPI_access0 = + xpc_sh2_IPI_access0_sn2 = (u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH2_IPI_ACCESS0)); - xpc_sh2_IPI_access1 = + xpc_sh2_IPI_access1_sn2 = (u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH2_IPI_ACCESS1)); - xpc_sh2_IPI_access2 = + xpc_sh2_IPI_access2_sn2 = (u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH2_IPI_ACCESS2)); - xpc_sh2_IPI_access3 = + xpc_sh2_IPI_access3_sn2 = (u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH2_IPI_ACCESS3)); for_each_online_node(node) { @@ -98,7 +98,7 @@ xpc_allow_IPI_ops_sn2(void) -1UL); } } else { - xpc_sh1_IPI_access = + xpc_sh1_IPI_access_sn2 = (u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH1_IPI_ACCESS)); for_each_online_node(node) { @@ -123,19 +123,19 @@ xpc_disallow_IPI_ops_sn2(void) for_each_online_node(node) { nasid = cnodeid_to_nasid(node); HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS0), - xpc_sh2_IPI_access0); + xpc_sh2_IPI_access0_sn2); HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS1), - xpc_sh2_IPI_access1); + xpc_sh2_IPI_access1_sn2); HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS2), - xpc_sh2_IPI_access2); + xpc_sh2_IPI_access2_sn2); HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS3), - xpc_sh2_IPI_access3); + xpc_sh2_IPI_access3_sn2); } } else { for_each_online_node(node) { nasid = cnodeid_to_nasid(node); HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH1_IPI_ACCESS), - xpc_sh1_IPI_access); + xpc_sh1_IPI_access_sn2); } } } @@ -182,7 +182,7 @@ xpc_send_IRQ_sn2(struct amo *amo, u64 flag, int nasid, int phys_cpuid, static struct amo * xpc_init_IRQ_amo_sn2(int index) { - struct amo *amo = xpc_vars->amos_page + index; + struct amo *amo = xpc_vars_sn2->amos_page + index; (void)xpc_receive_IRQ_amo_sn2(amo); /* clear amo variable */ return amo; @@ -225,7 +225,7 @@ xpc_send_local_activate_IRQ_sn2(int from_nasid) { int w_index = XPC_NASID_W_INDEX(from_nasid); int b_index = XPC_NASID_B_INDEX(from_nasid); - struct amo *amos = (struct amo *)__va(xpc_vars->amos_page_pa + + struct amo *amos = (struct amo *)__va(xpc_vars_sn2->amos_page_pa + (XPC_ACTIVATE_IRQ_AMOS_SN2 * sizeof(struct amo))); @@ -492,7 +492,8 @@ xpc_indicate_partition_disengaged_sn2(struct xpc_partition *part) static int xpc_partition_engaged_sn2(short partid) { - struct amo *amo = xpc_vars->amos_page + XPC_ENGAGED_PARTITIONS_AMO_SN2; + struct amo *amo = xpc_vars_sn2->amos_page + + XPC_ENGAGED_PARTITIONS_AMO_SN2; /* our partition's amo variable ANDed with partid mask */ return (FETCHOP_LOAD_OP(TO_AMO((u64)&amo->variable), FETCHOP_LOAD) & @@ -502,7 +503,8 @@ xpc_partition_engaged_sn2(short partid) static int xpc_any_partition_engaged_sn2(void) { - struct amo *amo = xpc_vars->amos_page + XPC_ENGAGED_PARTITIONS_AMO_SN2; + struct amo *amo = xpc_vars_sn2->amos_page + + XPC_ENGAGED_PARTITIONS_AMO_SN2; /* our partition's amo variable */ return FETCHOP_LOAD_OP(TO_AMO((u64)&amo->variable), FETCHOP_LOAD) != 0; @@ -511,7 +513,8 @@ xpc_any_partition_engaged_sn2(void) static void xpc_assume_partition_disengaged_sn2(short partid) { - struct amo *amo = xpc_vars->amos_page + XPC_ENGAGED_PARTITIONS_AMO_SN2; + struct amo *amo = xpc_vars_sn2->amos_page + + XPC_ENGAGED_PARTITIONS_AMO_SN2; /* clear bit(s) based on partid mask in our partition's amo */ FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_AND, @@ -580,27 +583,27 @@ xpc_rsvd_page_init_sn2(struct xpc_rsvd_page *rp) int i; int ret; - xpc_vars = XPC_RP_VARS(rp); + xpc_vars_sn2 = XPC_RP_VARS(rp); - rp->sn.vars_pa = __pa(xpc_vars); + rp->sn.vars_pa = __pa(xpc_vars_sn2); /* vars_part array follows immediately after vars */ - xpc_vars_part = (struct xpc_vars_part_sn2 *)((u8 *)XPC_RP_VARS(rp) + - XPC_RP_VARS_SIZE); + xpc_vars_part_sn2 = (struct xpc_vars_part_sn2 *)((u8 *)XPC_RP_VARS(rp) + + XPC_RP_VARS_SIZE); /* - * Before clearing xpc_vars, see if a page of amos had been previously - * allocated. If not we'll need to allocate one and set permissions - * so that cross-partition amos are allowed. + * Before clearing xpc_vars_sn2, see if a page of amos had been + * previously allocated. If not we'll need to allocate one and set + * permissions so that cross-partition amos are allowed. * * The allocated amo page needs MCA reporting to remain disabled after * XPC has unloaded. To make this work, we keep a copy of the pointer - * to this page (i.e., amos_page) in the struct xpc_vars structure, + * to this page (i.e., amos_page) in the struct xpc_vars_sn2 structure, * which is pointed to by the reserved page, and re-use that saved copy * on subsequent loads of XPC. This amo page is never freed, and its * memory protections are never restricted. */ - amos_page = xpc_vars->amos_page; + amos_page = xpc_vars_sn2->amos_page; if (amos_page == NULL) { amos_page = (struct amo *)TO_AMO(uncached_alloc_page(0, 1)); if (amos_page == NULL) { @@ -621,18 +624,18 @@ xpc_rsvd_page_init_sn2(struct xpc_rsvd_page *rp) } } - /* clear xpc_vars */ - memset(xpc_vars, 0, sizeof(struct xpc_vars_sn2)); + /* clear xpc_vars_sn2 */ + memset(xpc_vars_sn2, 0, sizeof(struct xpc_vars_sn2)); - xpc_vars->version = XPC_V_VERSION; - xpc_vars->activate_IRQ_nasid = cpuid_to_nasid(0); - xpc_vars->activate_IRQ_phys_cpuid = cpu_physical_id(0); - xpc_vars->vars_part_pa = __pa(xpc_vars_part); - xpc_vars->amos_page_pa = ia64_tpa((u64)amos_page); - xpc_vars->amos_page = amos_page; /* save for next load of XPC */ + xpc_vars_sn2->version = XPC_V_VERSION; + xpc_vars_sn2->activate_IRQ_nasid = cpuid_to_nasid(0); + xpc_vars_sn2->activate_IRQ_phys_cpuid = cpu_physical_id(0); + xpc_vars_sn2->vars_part_pa = __pa(xpc_vars_part_sn2); + xpc_vars_sn2->amos_page_pa = ia64_tpa((u64)amos_page); + xpc_vars_sn2->amos_page = amos_page; /* save for next load of XPC */ - /* clear xpc_vars_part */ - memset((u64 *)xpc_vars_part, 0, sizeof(struct xpc_vars_part_sn2) * + /* clear xpc_vars_part_sn2 */ + memset((u64 *)xpc_vars_part_sn2, 0, sizeof(struct xpc_vars_part_sn2) * xp_max_npartitions); /* initialize the activate IRQ related amo variables */ @@ -649,30 +652,30 @@ xpc_rsvd_page_init_sn2(struct xpc_rsvd_page *rp) static void xpc_increment_heartbeat_sn2(void) { - xpc_vars->heartbeat++; + xpc_vars_sn2->heartbeat++; } static void xpc_offline_heartbeat_sn2(void) { xpc_increment_heartbeat_sn2(); - xpc_vars->heartbeat_offline = 1; + xpc_vars_sn2->heartbeat_offline = 1; } static void xpc_online_heartbeat_sn2(void) { xpc_increment_heartbeat_sn2(); - xpc_vars->heartbeat_offline = 0; + xpc_vars_sn2->heartbeat_offline = 0; } static void xpc_heartbeat_init_sn2(void) { - DBUG_ON(xpc_vars == NULL); + DBUG_ON(xpc_vars_sn2 == NULL); - bitmap_zero(xpc_vars->heartbeating_to_mask, XP_MAX_NPARTITIONS_SN2); - xpc_heartbeating_to_mask = &xpc_vars->heartbeating_to_mask[0]; + bitmap_zero(xpc_vars_sn2->heartbeating_to_mask, XP_MAX_NPARTITIONS_SN2); + xpc_heartbeating_to_mask = &xpc_vars_sn2->heartbeating_to_mask[0]; xpc_online_heartbeat_sn2(); } @@ -845,7 +848,8 @@ xpc_cancel_partition_deactivation_request_sn2(struct xpc_partition *part) static int xpc_partition_deactivation_requested_sn2(short partid) { - struct amo *amo = xpc_vars->amos_page + XPC_DEACTIVATE_REQUEST_AMO_SN2; + struct amo *amo = xpc_vars_sn2->amos_page + + XPC_DEACTIVATE_REQUEST_AMO_SN2; /* our partition's amo variable ANDed with partid mask */ return (FETCHOP_LOAD_OP(TO_AMO((u64)&amo->variable), FETCHOP_LOAD) & @@ -1033,7 +1037,7 @@ xpc_identify_activate_IRQ_sender_sn2(void) int n_IRQs_detected = 0; struct amo *act_amos; - act_amos = xpc_vars->amos_page + XPC_ACTIVATE_IRQ_AMOS_SN2; + act_amos = xpc_vars_sn2->amos_page + XPC_ACTIVATE_IRQ_AMOS_SN2; /* scan through act amo variable looking for non-zero entries */ for (word = 0; word < xpc_nasid_mask_words; word++) { @@ -1261,15 +1265,17 @@ xpc_setup_infrastructure_sn2(struct xpc_partition *part) * The setting of the magic # indicates that these per partition * specific variables are ready to be used. */ - xpc_vars_part[partid].GPs_pa = __pa(part_sn2->local_GPs); - xpc_vars_part[partid].openclose_args_pa = + xpc_vars_part_sn2[partid].GPs_pa = __pa(part_sn2->local_GPs); + xpc_vars_part_sn2[partid].openclose_args_pa = __pa(part->local_openclose_args); - xpc_vars_part[partid].chctl_amo_pa = __pa(part_sn2->local_chctl_amo_va); + xpc_vars_part_sn2[partid].chctl_amo_pa = + __pa(part_sn2->local_chctl_amo_va); cpuid = raw_smp_processor_id(); /* any CPU in this partition will do */ - xpc_vars_part[partid].notify_IRQ_nasid = cpuid_to_nasid(cpuid); - xpc_vars_part[partid].notify_IRQ_phys_cpuid = cpu_physical_id(cpuid); - xpc_vars_part[partid].nchannels = part->nchannels; - xpc_vars_part[partid].magic = XPC_VP_MAGIC1; + xpc_vars_part_sn2[partid].notify_IRQ_nasid = cpuid_to_nasid(cpuid); + xpc_vars_part_sn2[partid].notify_IRQ_phys_cpuid = + cpu_physical_id(cpuid); + xpc_vars_part_sn2[partid].nchannels = part->nchannels; + xpc_vars_part_sn2[partid].magic = XPC_VP_MAGIC1; return xpSuccess; @@ -1316,7 +1322,7 @@ xpc_teardown_infrastructure_sn2(struct xpc_partition *part) DBUG_ON(part->setup_state != XPC_P_SETUP); part->setup_state = XPC_P_WTEARDOWN; - xpc_vars_part[partid].magic = 0; + xpc_vars_part_sn2[partid].magic = 0; free_irq(SGI_XPC_NOTIFY, (void *)(u64)partid); @@ -1432,7 +1438,7 @@ xpc_pull_remote_vars_part_sn2(struct xpc_partition *part) return xpRetry; } - if (xpc_vars_part[partid].magic == XPC_VP_MAGIC1) { + if (xpc_vars_part_sn2[partid].magic == XPC_VP_MAGIC1) { /* validate the variables */ @@ -1462,7 +1468,7 @@ xpc_pull_remote_vars_part_sn2(struct xpc_partition *part) /* let the other side know that we've pulled their variables */ - xpc_vars_part[partid].magic = XPC_VP_MAGIC2; + xpc_vars_part_sn2[partid].magic = XPC_VP_MAGIC2; } if (pulled_entry->magic == XPC_VP_MAGIC1) |