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Diffstat (limited to 'include/asm-x86/uv/uv_bau.h')
| -rw-r--r-- | include/asm-x86/uv/uv_bau.h | 332 |
1 files changed, 0 insertions, 332 deletions
diff --git a/include/asm-x86/uv/uv_bau.h b/include/asm-x86/uv/uv_bau.h deleted file mode 100644 index 77153fb18f5..00000000000 --- a/include/asm-x86/uv/uv_bau.h +++ /dev/null @@ -1,332 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * SGI UV Broadcast Assist Unit definitions - * - * Copyright (C) 2008 Silicon Graphics, Inc. All rights reserved. - */ - -#ifndef ASM_X86__UV__UV_BAU_H -#define ASM_X86__UV__UV_BAU_H - -#include <linux/bitmap.h> -#define BITSPERBYTE 8 - -/* - * Broadcast Assist Unit messaging structures - * - * Selective Broadcast activations are induced by software action - * specifying a particular 8-descriptor "set" via a 6-bit index written - * to an MMR. - * Thus there are 64 unique 512-byte sets of SB descriptors - one set for - * each 6-bit index value. These descriptor sets are mapped in sequence - * starting with set 0 located at the address specified in the - * BAU_SB_DESCRIPTOR_BASE register, set 1 is located at BASE + 512, - * set 2 is at BASE + 2*512, set 3 at BASE + 3*512, and so on. - * - * We will use 31 sets, one for sending BAU messages from each of the 32 - * cpu's on the node. - * - * TLB shootdown will use the first of the 8 descriptors of each set. - * Each of the descriptors is 64 bytes in size (8*64 = 512 bytes in a set). - */ - -#define UV_ITEMS_PER_DESCRIPTOR 8 -#define UV_CPUS_PER_ACT_STATUS 32 -#define UV_ACT_STATUS_MASK 0x3 -#define UV_ACT_STATUS_SIZE 2 -#define UV_ACTIVATION_DESCRIPTOR_SIZE 32 -#define UV_DISTRIBUTION_SIZE 256 -#define UV_SW_ACK_NPENDING 8 -#define UV_NET_ENDPOINT_INTD 0x38 -#define UV_DESC_BASE_PNODE_SHIFT 49 -#define UV_PAYLOADQ_PNODE_SHIFT 49 -#define UV_PTC_BASENAME "sgi_uv/ptc_statistics" -#define uv_physnodeaddr(x) ((__pa((unsigned long)(x)) & uv_mmask)) - -/* - * bits in UVH_LB_BAU_SB_ACTIVATION_STATUS_0/1 - */ -#define DESC_STATUS_IDLE 0 -#define DESC_STATUS_ACTIVE 1 -#define DESC_STATUS_DESTINATION_TIMEOUT 2 -#define DESC_STATUS_SOURCE_TIMEOUT 3 - -/* - * source side threshholds at which message retries print a warning - */ -#define SOURCE_TIMEOUT_LIMIT 20 -#define DESTINATION_TIMEOUT_LIMIT 20 - -/* - * number of entries in the destination side payload queue - */ -#define DEST_Q_SIZE 17 -/* - * number of destination side software ack resources - */ -#define DEST_NUM_RESOURCES 8 -#define MAX_CPUS_PER_NODE 32 -/* - * completion statuses for sending a TLB flush message - */ -#define FLUSH_RETRY 1 -#define FLUSH_GIVEUP 2 -#define FLUSH_COMPLETE 3 - -/* - * Distribution: 32 bytes (256 bits) (bytes 0-0x1f of descriptor) - * If the 'multilevel' flag in the header portion of the descriptor - * has been set to 0, then endpoint multi-unicast mode is selected. - * The distribution specification (32 bytes) is interpreted as a 256-bit - * distribution vector. Adjacent bits correspond to consecutive even numbered - * nodeIDs. The result of adding the index of a given bit to the 15-bit - * 'base_dest_nodeid' field of the header corresponds to the - * destination nodeID associated with that specified bit. - */ -struct bau_target_nodemask { - unsigned long bits[BITS_TO_LONGS(256)]; -}; - -/* - * mask of cpu's on a node - * (during initialization we need to check that unsigned long has - * enough bits for max. cpu's per node) - */ -struct bau_local_cpumask { - unsigned long bits; -}; - -/* - * Payload: 16 bytes (128 bits) (bytes 0x20-0x2f of descriptor) - * only 12 bytes (96 bits) of the payload area are usable. - * An additional 3 bytes (bits 27:4) of the header address are carried - * to the next bytes of the destination payload queue. - * And an additional 2 bytes of the header Suppl_A field are also - * carried to the destination payload queue. - * But the first byte of the Suppl_A becomes bits 127:120 (the 16th byte) - * of the destination payload queue, which is written by the hardware - * with the s/w ack resource bit vector. - * [ effective message contents (16 bytes (128 bits) maximum), not counting - * the s/w ack bit vector ] - */ - -/* - * The payload is software-defined for INTD transactions - */ -struct bau_msg_payload { - unsigned long address; /* signifies a page or all TLB's - of the cpu */ - /* 64 bits */ - unsigned short sending_cpu; /* filled in by sender */ - /* 16 bits */ - unsigned short acknowledge_count;/* filled in by destination */ - /* 16 bits */ - unsigned int reserved1:32; /* not usable */ -}; - - -/* - * Message header: 16 bytes (128 bits) (bytes 0x30-0x3f of descriptor) - * see table 4.2.3.0.1 in broacast_assist spec. - */ -struct bau_msg_header { - int dest_subnodeid:6; /* must be zero */ - /* bits 5:0 */ - int base_dest_nodeid:15; /* nasid>>1 (pnode) of first bit in node_map */ - /* bits 20:6 */ - int command:8; /* message type */ - /* bits 28:21 */ - /* 0x38: SN3net EndPoint Message */ - int rsvd_1:3; /* must be zero */ - /* bits 31:29 */ - /* int will align on 32 bits */ - int rsvd_2:9; /* must be zero */ - /* bits 40:32 */ - /* Suppl_A is 56-41 */ - int payload_2a:8; /* becomes byte 16 of msg */ - /* bits 48:41 */ /* not currently using */ - int payload_2b:8; /* becomes byte 17 of msg */ - /* bits 56:49 */ /* not currently using */ - /* Address field (96:57) is never used as an - address (these are address bits 42:3) */ - int rsvd_3:1; /* must be zero */ - /* bit 57 */ - /* address bits 27:4 are payload */ - /* these 24 bits become bytes 12-14 of msg */ - int replied_to:1; /* sent as 0 by the source to byte 12 */ - /* bit 58 */ - - int payload_1a:5; /* not currently used */ - /* bits 63:59 */ - int payload_1b:8; /* not currently used */ - /* bits 71:64 */ - int payload_1c:8; /* not currently used */ - /* bits 79:72 */ - int payload_1d:2; /* not currently used */ - /* bits 81:80 */ - - int rsvd_4:7; /* must be zero */ - /* bits 88:82 */ - int sw_ack_flag:1; /* software acknowledge flag */ - /* bit 89 */ - /* INTD trasactions at destination are to - wait for software acknowledge */ - int rsvd_5:6; /* must be zero */ - /* bits 95:90 */ - int rsvd_6:5; /* must be zero */ - /* bits 100:96 */ - int int_both:1; /* if 1, interrupt both sockets on the blade */ - /* bit 101*/ - int fairness:3; /* usually zero */ - /* bits 104:102 */ - int multilevel:1; /* multi-level multicast format */ - /* bit 105 */ - /* 0 for TLB: endpoint multi-unicast messages */ - int chaining:1; /* next descriptor is part of this activation*/ - /* bit 106 */ - int rsvd_7:21; /* must be zero */ - /* bits 127:107 */ -}; - -/* - * The activation descriptor: - * The format of the message to send, plus all accompanying control - * Should be 64 bytes - */ -struct bau_desc { - struct bau_target_nodemask distribution; - /* - * message template, consisting of header and payload: - */ - struct bau_msg_header header; - struct bau_msg_payload payload; -}; -/* - * -payload-- ---------header------ - * bytes 0-11 bits 41-56 bits 58-81 - * A B (2) C (3) - * - * A/B/C are moved to: - * A C B - * bytes 0-11 bytes 12-14 bytes 16-17 (byte 15 filled in by hw as vector) - * ------------payload queue----------- - */ - -/* - * The payload queue on the destination side is an array of these. - * With BAU_MISC_CONTROL set for software acknowledge mode, the messages - * are 32 bytes (2 micropackets) (256 bits) in length, but contain only 17 - * bytes of usable data, including the sw ack vector in byte 15 (bits 127:120) - * (12 bytes come from bau_msg_payload, 3 from payload_1, 2 from - * sw_ack_vector and payload_2) - * "Enabling Software Acknowledgment mode (see Section 4.3.3 Software - * Acknowledge Processing) also selects 32 byte (17 bytes usable) payload - * operation." - */ -struct bau_payload_queue_entry { - unsigned long address; /* signifies a page or all TLB's - of the cpu */ - /* 64 bits, bytes 0-7 */ - - unsigned short sending_cpu; /* cpu that sent the message */ - /* 16 bits, bytes 8-9 */ - - unsigned short acknowledge_count; /* filled in by destination */ - /* 16 bits, bytes 10-11 */ - - unsigned short replied_to:1; /* sent as 0 by the source */ - /* 1 bit */ - unsigned short unused1:7; /* not currently using */ - /* 7 bits: byte 12) */ - - unsigned char unused2[2]; /* not currently using */ - /* bytes 13-14 */ - - unsigned char sw_ack_vector; /* filled in by the hardware */ - /* byte 15 (bits 127:120) */ - - unsigned char unused4[3]; /* not currently using bytes 17-19 */ - /* bytes 17-19 */ - - int number_of_cpus; /* filled in at destination */ - /* 32 bits, bytes 20-23 (aligned) */ - - unsigned char unused5[8]; /* not using */ - /* bytes 24-31 */ -}; - -/* - * one for every slot in the destination payload queue - */ -struct bau_msg_status { - struct bau_local_cpumask seen_by; /* map of cpu's */ -}; - -/* - * one for every slot in the destination software ack resources - */ -struct bau_sw_ack_status { - struct bau_payload_queue_entry *msg; /* associated message */ - int watcher; /* cpu monitoring, or -1 */ -}; - -/* - * one on every node and per-cpu; to locate the software tables - */ -struct bau_control { - struct bau_desc *descriptor_base; - struct bau_payload_queue_entry *bau_msg_head; - struct bau_payload_queue_entry *va_queue_first; - struct bau_payload_queue_entry *va_queue_last; - struct bau_msg_status *msg_statuses; - int *watching; /* pointer to array */ -}; - -/* - * This structure is allocated per_cpu for UV TLB shootdown statistics. - */ -struct ptc_stats { - unsigned long ptc_i; /* number of IPI-style flushes */ - unsigned long requestor; /* number of nodes this cpu sent to */ - unsigned long requestee; /* times cpu was remotely requested */ - unsigned long alltlb; /* times all tlb's on this cpu were flushed */ - unsigned long onetlb; /* times just one tlb on this cpu was flushed */ - unsigned long s_retry; /* retries on source side timeouts */ - unsigned long d_retry; /* retries on destination side timeouts */ - unsigned long sflush; /* cycles spent in uv_flush_tlb_others */ - unsigned long dflush; /* cycles spent on destination side */ - unsigned long retriesok; /* successes on retries */ - unsigned long nomsg; /* interrupts with no message */ - unsigned long multmsg; /* interrupts with multiple messages */ - unsigned long ntargeted;/* nodes targeted */ -}; - -static inline int bau_node_isset(int node, struct bau_target_nodemask *dstp) -{ - return constant_test_bit(node, &dstp->bits[0]); -} -static inline void bau_node_set(int node, struct bau_target_nodemask *dstp) -{ - __set_bit(node, &dstp->bits[0]); -} -static inline void bau_nodes_clear(struct bau_target_nodemask *dstp, int nbits) -{ - bitmap_zero(&dstp->bits[0], nbits); -} - -static inline void bau_cpubits_clear(struct bau_local_cpumask *dstp, int nbits) -{ - bitmap_zero(&dstp->bits, nbits); -} - -#define cpubit_isset(cpu, bau_local_cpumask) \ - test_bit((cpu), (bau_local_cpumask).bits) - -extern int uv_flush_tlb_others(cpumask_t *, struct mm_struct *, unsigned long); -extern void uv_bau_message_intr1(void); -extern void uv_bau_timeout_intr1(void); - -#endif /* ASM_X86__UV__UV_BAU_H */ |