From c39838ce21ca8e05857ed7f4be5d289011561905 Mon Sep 17 00:00:00 2001 From: Dean Nelson Date: Tue, 29 Jul 2008 22:34:11 -0700 Subject: sgi-xp: replace AMO_t typedef by struct amo Replace the AMO_t typedef by a direct reference to 'struct amo'. Signed-off-by: Dean Nelson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/misc/sgi-xp/xpc_sn2.c | 139 ++++++++++++++++++++++-------------------- 1 file changed, 72 insertions(+), 67 deletions(-) (limited to 'drivers/misc/sgi-xp/xpc_sn2.c') diff --git a/drivers/misc/sgi-xp/xpc_sn2.c b/drivers/misc/sgi-xp/xpc_sn2.c index 0fef7d86a5a2..01dd40ec2a89 100644 --- a/drivers/misc/sgi-xp/xpc_sn2.c +++ b/drivers/misc/sgi-xp/xpc_sn2.c @@ -111,13 +111,14 @@ xpc_disallow_IPI_ops_sn2(void) */ static u64 -xpc_receive_IRQ_amo_sn2(AMO_t *amo) +xpc_receive_IRQ_amo_sn2(struct amo *amo) { return FETCHOP_LOAD_OP(TO_AMO((u64)&amo->variable), FETCHOP_CLEAR); } static enum xp_retval -xpc_send_IRQ_sn2(AMO_t *amo, u64 flag, int nasid, int phys_cpuid, int vector) +xpc_send_IRQ_sn2(struct amo *amo, u64 flag, int nasid, int phys_cpuid, + int vector) { int ret = 0; unsigned long irq_flags; @@ -131,7 +132,7 @@ xpc_send_IRQ_sn2(AMO_t *amo, u64 flag, int nasid, int phys_cpuid, int vector) * We must always use the nofault function regardless of whether we * are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we * didn't, we'd never know that the other partition is down and would - * keep sending IRQs and AMOs to it until the heartbeat times out. + * keep sending IRQs and amos to it until the heartbeat times out. */ ret = xp_nofault_PIOR((u64 *)GLOBAL_MMR_ADDR(NASID_GET(&amo->variable), xp_nofault_PIOR_target)); @@ -141,12 +142,12 @@ xpc_send_IRQ_sn2(AMO_t *amo, u64 flag, int nasid, int phys_cpuid, int vector) return ((ret == 0) ? xpSuccess : xpPioReadError); } -static AMO_t * +static struct amo * xpc_init_IRQ_amo_sn2(int index) { - AMO_t *amo = xpc_vars->amos_page + index; + struct amo *amo = xpc_vars->amos_page + index; - (void)xpc_receive_IRQ_amo_sn2(amo); /* clear AMO variable */ + (void)xpc_receive_IRQ_amo_sn2(amo); /* clear amo variable */ return amo; } @@ -166,7 +167,7 @@ xpc_handle_activate_IRQ_sn2(int irq, void *dev_id) } /* - * Flag the appropriate AMO variable and send an IRQ to the specified node. + * Flag the appropriate amo variable and send an IRQ to the specified node. */ static void xpc_send_activate_IRQ_sn2(u64 amos_page_pa, int from_nasid, int to_nasid, @@ -174,8 +175,9 @@ xpc_send_activate_IRQ_sn2(u64 amos_page_pa, int from_nasid, int to_nasid, { int w_index = XPC_NASID_W_INDEX(from_nasid); int b_index = XPC_NASID_B_INDEX(from_nasid); - AMO_t *amos = (AMO_t *)__va(amos_page_pa + - (XPC_ACTIVATE_IRQ_AMOS * sizeof(AMO_t))); + struct amo *amos = (struct amo *)__va(amos_page_pa + + (XPC_ACTIVATE_IRQ_AMOS * + sizeof(struct amo))); (void)xpc_send_IRQ_sn2(&amos[w_index], (1UL << b_index), to_nasid, to_phys_cpuid, SGI_XPC_ACTIVATE); @@ -186,8 +188,9 @@ 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); - AMO_t *amos = (AMO_t *)__va(xpc_vars->amos_page_pa + - (XPC_ACTIVATE_IRQ_AMOS * sizeof(AMO_t))); + struct amo *amos = (struct amo *)__va(xpc_vars->amos_page_pa + + (XPC_ACTIVATE_IRQ_AMOS * + sizeof(struct amo))); /* fake the sending and receipt of an activate IRQ from remote nasid */ FETCHOP_STORE_OP(TO_AMO((u64)&amos[w_index].variable), FETCHOP_OR, @@ -227,7 +230,7 @@ xpc_check_for_sent_chctl_flags_sn2(struct xpc_partition *part) /* * Handle the receipt of a SGI_XPC_NOTIFY IRQ by seeing whether the specified * partition actually sent it. Since SGI_XPC_NOTIFY IRQs may be shared by more - * than one partition, we use an AMO_t structure per partition to indicate + * than one partition, we use an amo structure per partition to indicate * whether a partition has sent an IRQ or not. If it has, then wake up the * associated kthread to handle it. * @@ -391,20 +394,20 @@ static void xpc_indicate_partition_engaged_sn2(struct xpc_partition *part) { unsigned long irq_flags; - AMO_t *amo = (AMO_t *)__va(part->sn.sn2.remote_amos_page_pa + - (XPC_ENGAGED_PARTITIONS_AMO * - sizeof(AMO_t))); + struct amo *amo = (struct amo *)__va(part->sn.sn2.remote_amos_page_pa + + (XPC_ENGAGED_PARTITIONS_AMO * + sizeof(struct amo))); local_irq_save(irq_flags); - /* set bit corresponding to our partid in remote partition's AMO */ + /* set bit corresponding to our partid in remote partition's amo */ FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_OR, (1UL << sn_partition_id)); /* * We must always use the nofault function regardless of whether we * are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we * didn't, we'd never know that the other partition is down and would - * keep sending IRQs and AMOs to it until the heartbeat times out. + * keep sending IRQs and amos to it until the heartbeat times out. */ (void)xp_nofault_PIOR((u64 *)GLOBAL_MMR_ADDR(NASID_GET(&amo-> variable), @@ -418,20 +421,20 @@ xpc_indicate_partition_disengaged_sn2(struct xpc_partition *part) { struct xpc_partition_sn2 *part_sn2 = &part->sn.sn2; unsigned long irq_flags; - AMO_t *amo = (AMO_t *)__va(part_sn2->remote_amos_page_pa + - (XPC_ENGAGED_PARTITIONS_AMO * - sizeof(AMO_t))); + struct amo *amo = (struct amo *)__va(part_sn2->remote_amos_page_pa + + (XPC_ENGAGED_PARTITIONS_AMO * + sizeof(struct amo))); local_irq_save(irq_flags); - /* clear bit corresponding to our partid in remote partition's AMO */ + /* clear bit corresponding to our partid in remote partition's amo */ FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_AND, ~(1UL << sn_partition_id)); /* * We must always use the nofault function regardless of whether we * are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we * didn't, we'd never know that the other partition is down and would - * keep sending IRQs and AMOs to it until the heartbeat times out. + * keep sending IRQs and amos to it until the heartbeat times out. */ (void)xp_nofault_PIOR((u64 *)GLOBAL_MMR_ADDR(NASID_GET(&amo-> variable), @@ -441,7 +444,7 @@ xpc_indicate_partition_disengaged_sn2(struct xpc_partition *part) /* * Send activate IRQ to get other side to see that we've cleared our - * bit in their engaged partitions AMO. + * bit in their engaged partitions amo. */ xpc_send_activate_IRQ_sn2(part_sn2->remote_amos_page_pa, cnodeid_to_nasid(0), @@ -452,9 +455,9 @@ xpc_indicate_partition_disengaged_sn2(struct xpc_partition *part) static int xpc_partition_engaged_sn2(short partid) { - AMO_t *amo = xpc_vars->amos_page + XPC_ENGAGED_PARTITIONS_AMO; + struct amo *amo = xpc_vars->amos_page + XPC_ENGAGED_PARTITIONS_AMO; - /* our partition's AMO variable ANDed with partid mask */ + /* our partition's amo variable ANDed with partid mask */ return (FETCHOP_LOAD_OP(TO_AMO((u64)&amo->variable), FETCHOP_LOAD) & (1UL << partid)) != 0; } @@ -462,18 +465,18 @@ xpc_partition_engaged_sn2(short partid) static int xpc_any_partition_engaged_sn2(void) { - AMO_t *amo = xpc_vars->amos_page + XPC_ENGAGED_PARTITIONS_AMO; + struct amo *amo = xpc_vars->amos_page + XPC_ENGAGED_PARTITIONS_AMO; - /* our partition's AMO variable */ + /* our partition's amo variable */ return FETCHOP_LOAD_OP(TO_AMO((u64)&amo->variable), FETCHOP_LOAD) != 0; } static void xpc_assume_partition_disengaged_sn2(short partid) { - AMO_t *amo = xpc_vars->amos_page + XPC_ENGAGED_PARTITIONS_AMO; + struct amo *amo = xpc_vars->amos_page + XPC_ENGAGED_PARTITIONS_AMO; - /* clear bit(s) based on partid mask in our partition's AMO */ + /* clear bit(s) based on partid mask in our partition's amo */ FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_AND, ~(1UL << partid)); } @@ -482,10 +485,10 @@ xpc_assume_partition_disengaged_sn2(short partid) static u64 xpc_prot_vec_sn2[MAX_NUMNODES]; /* - * Change protections to allow AMO operations on non-Shub 1.1 systems. + * Change protections to allow amo operations on non-Shub 1.1 systems. */ static enum xp_retval -xpc_allow_AMO_ops_sn2(AMO_t *amos_page) +xpc_allow_amo_ops_sn2(struct amo *amos_page) { u64 nasid_array = 0; int ret; @@ -493,7 +496,7 @@ xpc_allow_AMO_ops_sn2(AMO_t *amos_page) /* * On SHUB 1.1, we cannot call sn_change_memprotect() since the BIST * collides with memory operations. On those systems we call - * xpc_allow_AMO_ops_shub_wars_1_1_sn2() instead. + * xpc_allow_amo_ops_shub_wars_1_1_sn2() instead. */ if (!enable_shub_wars_1_1()) { ret = sn_change_memprotect(ia64_tpa((u64)amos_page), PAGE_SIZE, @@ -506,10 +509,10 @@ xpc_allow_AMO_ops_sn2(AMO_t *amos_page) } /* - * Change protections to allow AMO operations on Shub 1.1 systems. + * Change protections to allow amo operations on Shub 1.1 systems. */ static void -xpc_allow_AMO_ops_shub_wars_1_1_sn2(void) +xpc_allow_amo_ops_shub_wars_1_1_sn2(void) { int node; int nasid; @@ -536,7 +539,7 @@ xpc_allow_AMO_ops_shub_wars_1_1_sn2(void) static enum xp_retval xpc_rsvd_page_init_sn2(struct xpc_rsvd_page *rp) { - AMO_t *amos_page; + struct amo *amos_page; int i; int ret; @@ -549,32 +552,32 @@ xpc_rsvd_page_init_sn2(struct xpc_rsvd_page *rp) XPC_RP_VARS_SIZE); /* - * Before clearing xpc_vars, see if a page of AMOs had been previously + * 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. + * so that cross-partition amos are allowed. * - * The allocated AMO page needs MCA reporting to remain disabled after + * 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, * 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 + * on subsequent loads of XPC. This amo page is never freed, and its * memory protections are never restricted. */ amos_page = xpc_vars->amos_page; if (amos_page == NULL) { - amos_page = (AMO_t *)TO_AMO(uncached_alloc_page(0, 1)); + amos_page = (struct amo *)TO_AMO(uncached_alloc_page(0, 1)); if (amos_page == NULL) { - dev_err(xpc_part, "can't allocate page of AMOs\n"); + dev_err(xpc_part, "can't allocate page of amos\n"); return xpNoMemory; } /* - * Open up AMO-R/W to cpu. This is done on Shub 1.1 systems - * when xpc_allow_AMO_ops_shub_wars_1_1_sn2() is called. + * Open up amo-R/W to cpu. This is done on Shub 1.1 systems + * when xpc_allow_amo_ops_shub_wars_1_1_sn2() is called. */ - ret = xpc_allow_AMO_ops_sn2(amos_page); + ret = xpc_allow_amo_ops_sn2(amos_page); if (ret != xpSuccess) { - dev_err(xpc_part, "can't allow AMO operations\n"); + dev_err(xpc_part, "can't allow amo operations\n"); uncached_free_page(__IA64_UNCACHED_OFFSET | TO_PHYS((u64)amos_page), 1); return ret; @@ -595,11 +598,11 @@ xpc_rsvd_page_init_sn2(struct xpc_rsvd_page *rp) memset((u64 *)xpc_vars_part, 0, sizeof(struct xpc_vars_part_sn2) * xp_max_npartitions); - /* initialize the activate IRQ related AMO variables */ + /* initialize the activate IRQ related amo variables */ for (i = 0; i < xp_nasid_mask_words; i++) (void)xpc_init_IRQ_amo_sn2(XPC_ACTIVATE_IRQ_AMOS + i); - /* initialize the engaged remote partitions related AMO variables */ + /* initialize the engaged remote partitions related amo variables */ (void)xpc_init_IRQ_amo_sn2(XPC_ENGAGED_PARTITIONS_AMO); (void)xpc_init_IRQ_amo_sn2(XPC_DEACTIVATE_REQUEST_AMO); @@ -745,19 +748,20 @@ xpc_request_partition_deactivation_sn2(struct xpc_partition *part) { struct xpc_partition_sn2 *part_sn2 = &part->sn.sn2; unsigned long irq_flags; - AMO_t *amo = (AMO_t *)__va(part_sn2->remote_amos_page_pa + - (XPC_DEACTIVATE_REQUEST_AMO * sizeof(AMO_t))); + struct amo *amo = (struct amo *)__va(part_sn2->remote_amos_page_pa + + (XPC_DEACTIVATE_REQUEST_AMO * + sizeof(struct amo))); local_irq_save(irq_flags); - /* set bit corresponding to our partid in remote partition's AMO */ + /* set bit corresponding to our partid in remote partition's amo */ FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_OR, (1UL << sn_partition_id)); /* * We must always use the nofault function regardless of whether we * are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we * didn't, we'd never know that the other partition is down and would - * keep sending IRQs and AMOs to it until the heartbeat times out. + * keep sending IRQs and amos to it until the heartbeat times out. */ (void)xp_nofault_PIOR((u64 *)GLOBAL_MMR_ADDR(NASID_GET(&amo-> variable), @@ -767,7 +771,7 @@ xpc_request_partition_deactivation_sn2(struct xpc_partition *part) /* * Send activate IRQ to get other side to see that we've set our - * bit in their deactivate request AMO. + * bit in their deactivate request amo. */ xpc_send_activate_IRQ_sn2(part_sn2->remote_amos_page_pa, cnodeid_to_nasid(0), @@ -779,19 +783,20 @@ static void xpc_cancel_partition_deactivation_request_sn2(struct xpc_partition *part) { unsigned long irq_flags; - AMO_t *amo = (AMO_t *)__va(part->sn.sn2.remote_amos_page_pa + - (XPC_DEACTIVATE_REQUEST_AMO * sizeof(AMO_t))); + struct amo *amo = (struct amo *)__va(part->sn.sn2.remote_amos_page_pa + + (XPC_DEACTIVATE_REQUEST_AMO * + sizeof(struct amo))); local_irq_save(irq_flags); - /* clear bit corresponding to our partid in remote partition's AMO */ + /* clear bit corresponding to our partid in remote partition's amo */ FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_AND, ~(1UL << sn_partition_id)); /* * We must always use the nofault function regardless of whether we * are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we * didn't, we'd never know that the other partition is down and would - * keep sending IRQs and AMOs to it until the heartbeat times out. + * keep sending IRQs and amos to it until the heartbeat times out. */ (void)xp_nofault_PIOR((u64 *)GLOBAL_MMR_ADDR(NASID_GET(&amo-> variable), @@ -803,9 +808,9 @@ xpc_cancel_partition_deactivation_request_sn2(struct xpc_partition *part) static int xpc_partition_deactivation_requested_sn2(short partid) { - AMO_t *amo = xpc_vars->amos_page + XPC_DEACTIVATE_REQUEST_AMO; + struct amo *amo = xpc_vars->amos_page + XPC_DEACTIVATE_REQUEST_AMO; - /* our partition's AMO variable ANDed with partid mask */ + /* our partition's amo variable ANDed with partid mask */ return (FETCHOP_LOAD_OP(TO_AMO((u64)&amo->variable), FETCHOP_LOAD) & (1UL << partid)) != 0; } @@ -976,7 +981,7 @@ xpc_identify_activate_IRQ_req_sn2(int nasid) } /* - * Loop through the activation AMO variables and process any bits + * Loop through the activation amo variables and process any bits * which are set. Each bit indicates a nasid sending a partition * activation or deactivation request. * @@ -989,11 +994,11 @@ xpc_identify_activate_IRQ_sender_sn2(void) u64 nasid_mask; u64 nasid; /* remote nasid */ int n_IRQs_detected = 0; - AMO_t *act_amos; + struct amo *act_amos; act_amos = xpc_vars->amos_page + XPC_ACTIVATE_IRQ_AMOS; - /* scan through act AMO variable looking for non-zero entries */ + /* scan through act amo variable looking for non-zero entries */ for (word = 0; word < xp_nasid_mask_words; word++) { if (xpc_exiting) @@ -1005,7 +1010,7 @@ xpc_identify_activate_IRQ_sender_sn2(void) continue; } - dev_dbg(xpc_part, "AMO[%d] gave back 0x%lx\n", word, + dev_dbg(xpc_part, "amo[%d] gave back 0x%lx\n", word, nasid_mask); /* @@ -1038,7 +1043,7 @@ xpc_process_activate_IRQ_rcvd_sn2(int n_IRQs_expected) n_IRQs_detected = xpc_identify_activate_IRQ_sender_sn2(); if (n_IRQs_detected < n_IRQs_expected) { - /* retry once to help avoid missing AMO */ + /* retry once to help avoid missing amo */ (void)xpc_identify_activate_IRQ_sender_sn2(); } } @@ -1386,7 +1391,7 @@ xpc_pull_remote_vars_part_sn2(struct xpc_partition *part) part_sn2->remote_openclose_args_pa = pulled_entry->openclose_args_pa; part_sn2->remote_chctl_amo_va = - (AMO_t *)__va(pulled_entry->chctl_amo_pa); + (struct amo *)__va(pulled_entry->chctl_amo_pa); part_sn2->notify_IRQ_nasid = pulled_entry->notify_IRQ_nasid; part_sn2->notify_IRQ_phys_cpuid = pulled_entry->notify_IRQ_phys_cpuid; @@ -1417,7 +1422,7 @@ xpc_make_first_contact_sn2(struct xpc_partition *part) enum xp_retval ret; /* - * Register the remote partition's AMOs with SAL so it can handle + * Register the remote partition's amos with SAL so it can handle * and cleanup errors within that address range should the remote * partition go down. We don't unregister this range because it is * difficult to tell when outstanding writes to the remote partition @@ -2192,9 +2197,9 @@ xpc_init_sn2(void) xpc_send_msg = xpc_send_msg_sn2; xpc_received_msg = xpc_received_msg_sn2; - /* open up protections for IPI and [potentially] AMO operations */ + /* open up protections for IPI and [potentially] amo operations */ xpc_allow_IPI_ops_sn2(); - xpc_allow_AMO_ops_shub_wars_1_1_sn2(); + xpc_allow_amo_ops_shub_wars_1_1_sn2(); /* * This is safe to do before the xpc_hb_checker thread has started -- cgit v1.2.2