1 /*
2 * file rm_loc.h
3 *
4 * General private data structures of Resource Manager.
5 *
6 * ============================================================================
7 * (C) Copyright 2012, Texas Instruments, Inc.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 *
16 * Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the
19 * distribution.
20 *
21 * Neither the name of Texas Instruments Incorporated nor the names of
22 * its contributors may be used to endorse or promote products derived
23 * from this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 *
37 * \par
38 */
40 #ifndef RMLOC_H_
41 #define RMLOC_H_
43 #ifdef __cplusplus
44 extern "C" {
45 #endif
47 /* RM external includes */
48 #include <ti/drv/rm/rm_services.h>
49 #include <ti/drv/rm/rm_transport.h>
51 /* RM internal includes */
52 #include <ti/drv/rm/include/rm_servicesloc.h>
53 #include <ti/drv/rm/include/rm_policyloc.h>
54 #include <ti/drv/rm/include/rm_nameserverloc.h>
56 /* AVL BBST includes */
57 #include <ti/drv/rm/include/tree.h>
59 /** Maximum size of a transmittable RM policy in bytes */
60 #define RM_MAX_POLICY_SIZE_BYTES (64) // Placeholder: This will change
61 // during development
63 /** Pointer to RM instance's transport routing map */
64 typedef void *Rm_TransportRouteMap;
66 /** Pointer to RM instance's transaction queue */
67 typedef void *Rm_TransactionQueue;
69 /**
70 * @brief RM protocol packet resource information
71 */
72 typedef struct {
73 /** Resource name of resource affected by command */
74 char name[RM_RESOURCE_NAME_MAX_CHARS];
75 /** If applicable, start of resource range affected by command. If
76 * RM_RESOURCE_UNSPECIFIED is assigned the higher level RM agent*/
77 int32_t base;
78 /** If applicable, number of specified resource, starting from base, affected by command */
79 uint32_t length;
80 /** If applicable, the alignment of the resource affected by the command */
81 int32_t alignment;
82 /** If applicable, the NameServer name assigned to the specified
83 * resource. Used for commands centering on RM NameServer actions */
84 char nameServerName[RM_RESOURCE_NAME_MAX_CHARS];
85 } Rm_ResourceInfo;
87 /**
88 * @brief RM transactions are the internalized version of service requests received
89 * from components and RM commands received from other RM instances.
90 * Transactions that cannot immediately be serviced are placed in the RM
91 * instance's transaction queue. The transactions track all service
92 * requests within the RM infrastructure.
93 */
94 typedef struct {
95 /** Transaction service type */
96 Rm_ServiceType type;
97 /** Local ID of the transaction. */
98 uint32_t localId;
99 /** ID of transaction in RM instance that generated the
100 * packet that resulted in the creation of the transaction. The
101 * originating ID will be placed in the transaction's response packet
102 * to the lower level RM instance. The lower level RM instance will
103 * match the response packet with the originating request using the ID */
104 uint32_t remoteOriginatingId;
105 /** Name of the RM instance the RM packet, that spawned the transaction,
106 * originated from */
107 char pktSrcInstName[RM_INSTANCE_NAME_MAX_CHARS];
108 /** Transaction's associated callback function */
109 Rm_ServiceCallback callback;
110 /** Transaction state. The codes are externally visible and tracked
111 * in rmservices.h */
112 int32_t state;
113 /** Name of the RM instance the service originated from */
114 char serviceSrcInstName[RM_INSTANCE_NAME_MAX_CHARS];
115 /** Resource information */
116 Rm_ResourceInfo resourceInfo;
117 /** Link to the next transaction in the queue */
118 void *nextTransaction;
119 } Rm_Transaction;
121 typedef struct {
122 const void *rangeData;
123 int32_t rangeLen;
124 const void *nsAssignData;
125 int32_t nsAssignLen;
126 const void *linuxAliasData;
127 int32_t linuxAliasLen;
128 } Rm_ResourceProperties;
130 typedef enum {
131 Rm_allocatorOp_ALLOCATE = 0,
132 Rm_allocatorOp_FREE,
133 Rm_allocatorOp_PRE_ALLOCATE
134 } Rm_AllocatorOp;
136 typedef struct {
137 Rm_PolicyValidInstNode *serviceSrcInstNode;
138 Rm_AllocatorOp operation;
139 uint32_t allocType;
140 Rm_ResourceInfo *resourceInfo;
141 } Rm_AllocatorOpInfo;
143 typedef struct Rm_Allocator_s {
144 char resourceName[RM_RESOURCE_NAME_MAX_CHARS];
145 /** Pointer to the first resource entry in the allocator */
146 void *allocatorRootEntry;
147 /** Pointer to next resource allocator */
148 struct Rm_Allocator_s *nextAllocator;
149 } Rm_Allocator;
152 typedef struct {
153 char instName[RM_INSTANCE_NAME_MAX_CHARS];
154 void *startupDtb;
155 Rm_PolicyValidInstTree *validInstTree;
156 uint32_t requestCount;
157 Rm_ServicePreMainReq *preMainReqList;
158 } Rm_PreMainInst;
160 typedef struct {
161 char instName[RM_INSTANCE_NAME_MAX_CHARS];
162 Rm_InstType instType;
163 bool registeredWithDelegateOrServer;
164 void *policy;
165 Rm_PolicyValidInstTree *validInstances;
166 Rm_Allocator *allocators;
167 Rm_NameServerTree *nameServer;
168 /* RM instance transport parameters */
169 Rm_TransportRouteMap routeMap;
170 /* RM Transaction sequence number counter */
171 uint32_t transactionSeqNum;
172 /* RM transaction queue */
173 Rm_TransactionQueue transactionQueue;
174 /* Transport API function pointers - not global in case application wants to
175 * hook up different transports to RM */
176 Rm_TransportCallouts transport;
177 } Rm_Inst;
179 Rm_Transaction *Rm_transactionQueueAdd(Rm_Inst *rmInst);
180 Rm_Transaction *Rm_transactionQueueFind(Rm_Inst *rmInst, uint32_t transactionId);
181 int32_t Rm_transactionQueueDelete(Rm_Inst *rmInst, uint32_t transactionId);
182 uint32_t Rm_transactionGetSequenceNum(Rm_Inst *rmInst);
184 Rm_Allocator *Rm_allocatorFind(Rm_Allocator *allocatorList, char *resourceName);
186 void Rm_transactionResponder (Rm_Inst *rmInst, Rm_Transaction *transaction);
187 void Rm_transactionForwarder (Rm_Inst *rmInst, Rm_Transaction *transaction);
188 void Rm_transactionProcessor (Rm_Inst *rmInst, Rm_Transaction *transaction);
190 /**********************************************************************
191 ******************* Red-Black Tree BBST Defines **********************
192 **********************************************************************/
194 /* Declare the tree structure nodes */
195 typedef struct Rm_AllocatedTo_s {
196 Rm_PolicyValidInstNode *instNameNode;
197 struct Rm_AllocatedTo_s *nextAllocatedTo;
198 } Rm_AllocatedTo;
200 typedef struct _Rm_ResourceNode {
201 RB_ENTRY(_Rm_ResourceNode) linkage;
202 uint32_t base;
203 uint32_t length;
204 uint16_t allocationCount;
205 Rm_AllocatedTo *allocatedTo;
206 } Rm_ResourceNode;
208 /* Declare the tree head structure. A structure of type Rm_ResourceTree will need to be
209 * malloc'd for each tree that is to be created. */
210 typedef RB_HEAD(_Rm_ResourceTree, _Rm_ResourceNode) Rm_ResourceTree;
212 Rm_ResourceNode *Rm_newResourceNode(uint32_t resourceBase, uint32_t resourceLength);
213 void Rm_freeResourceNode(Rm_ResourceNode *node);
214 /* Prototype for tree node comparison function
215 * element1 < element2 --> return < 0
216 * element1 = element2 --> return 0
217 * element1 > element2 --> return > 0 */
218 int Rm_ResourceNodeCompare(Rm_ResourceNode *element1, Rm_ResourceNode *element2);
220 /* Generate the tree prototypes */
221 RB_PROTOTYPE(_Rm_ResourceTree, _Rm_ResourceNode, linkage, Rm_ResourceNodeCompare);
223 #ifdef __cplusplus
224 }
225 #endif
227 #endif /* RMLOC_H_ */