Commit | Line | Data |
---|---|---|
80ff0fd3 DD |
1 | /***********************license start*************** |
2 | * Author: Cavium Networks | |
3 | * | |
4 | * Contact: support@caviumnetworks.com | |
5 | * This file is part of the OCTEON SDK | |
6 | * | |
7 | * Copyright (c) 2003-2008 Cavium Networks | |
8 | * | |
9 | * This file is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License, Version 2, as | |
11 | * published by the Free Software Foundation. | |
12 | * | |
13 | * This file is distributed in the hope that it will be useful, but | |
14 | * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty | |
15 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or | |
16 | * NONINFRINGEMENT. See the GNU General Public License for more | |
17 | * details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this file; if not, write to the Free Software | |
21 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
22 | * or visit http://www.gnu.org/licenses/. | |
23 | * | |
24 | * This file may also be available under a different license from Cavium. | |
25 | * Contact Cavium Networks for more information | |
26 | ***********************license end**************************************/ | |
27 | ||
28 | /** | |
29 | * @file | |
30 | * | |
31 | * Support library for the hardware Free Pool Allocator. | |
32 | * | |
33 | * | |
34 | */ | |
35 | ||
36 | #include "cvmx-config.h" | |
37 | #include "cvmx.h" | |
38 | #include "cvmx-fpa.h" | |
39 | #include "cvmx-ipd.h" | |
40 | ||
41 | /** | |
42 | * Current state of all the pools. Use access functions | |
43 | * instead of using it directly. | |
44 | */ | |
45 | CVMX_SHARED cvmx_fpa_pool_info_t cvmx_fpa_pool_info[CVMX_FPA_NUM_POOLS]; | |
46 | ||
47 | /** | |
48 | * Setup a FPA pool to control a new block of memory. The | |
49 | * buffer pointer must be a physical address. | |
50 | * | |
51 | * @pool: Pool to initialize | |
52 | * 0 <= pool < 8 | |
53 | * @name: Constant character string to name this pool. | |
54 | * String is not copied. | |
55 | * @buffer: Pointer to the block of memory to use. This must be | |
6cd5a9a3 | 56 | * accessible by all processors and external hardware. |
80ff0fd3 DD |
57 | * @block_size: Size for each block controlled by the FPA |
58 | * @num_blocks: Number of blocks | |
59 | * | |
60 | * Returns 0 on Success, | |
61 | * -1 on failure | |
62 | */ | |
63 | int cvmx_fpa_setup_pool(uint64_t pool, const char *name, void *buffer, | |
64 | uint64_t block_size, uint64_t num_blocks) | |
65 | { | |
66 | char *ptr; | |
67 | if (!buffer) { | |
68 | cvmx_dprintf | |
69 | ("ERROR: cvmx_fpa_setup_pool: NULL buffer pointer!\n"); | |
70 | return -1; | |
71 | } | |
72 | if (pool >= CVMX_FPA_NUM_POOLS) { | |
73 | cvmx_dprintf("ERROR: cvmx_fpa_setup_pool: Illegal pool!\n"); | |
74 | return -1; | |
75 | } | |
76 | ||
77 | if (block_size < CVMX_FPA_MIN_BLOCK_SIZE) { | |
78 | cvmx_dprintf | |
79 | ("ERROR: cvmx_fpa_setup_pool: Block size too small.\n"); | |
80 | return -1; | |
81 | } | |
82 | ||
83 | if (((unsigned long)buffer & (CVMX_FPA_ALIGNMENT - 1)) != 0) { | |
84 | cvmx_dprintf | |
85 | ("ERROR: cvmx_fpa_setup_pool: Buffer not aligned properly.\n"); | |
86 | return -1; | |
87 | } | |
88 | ||
89 | cvmx_fpa_pool_info[pool].name = name; | |
90 | cvmx_fpa_pool_info[pool].size = block_size; | |
91 | cvmx_fpa_pool_info[pool].starting_element_count = num_blocks; | |
92 | cvmx_fpa_pool_info[pool].base = buffer; | |
93 | ||
94 | ptr = (char *)buffer; | |
95 | while (num_blocks--) { | |
96 | cvmx_fpa_free(ptr, pool, 0); | |
97 | ptr += block_size; | |
98 | } | |
99 | return 0; | |
100 | } | |
101 | ||
102 | /** | |
103 | * Shutdown a Memory pool and validate that it had all of | |
104 | * the buffers originally placed in it. | |
105 | * | |
106 | * @pool: Pool to shutdown | |
107 | * Returns Zero on success | |
108 | * - Positive is count of missing buffers | |
109 | * - Negative is too many buffers or corrupted pointers | |
110 | */ | |
111 | uint64_t cvmx_fpa_shutdown_pool(uint64_t pool) | |
112 | { | |
113 | uint64_t errors = 0; | |
114 | uint64_t count = 0; | |
115 | uint64_t base = cvmx_ptr_to_phys(cvmx_fpa_pool_info[pool].base); | |
116 | uint64_t finish = | |
117 | base + | |
118 | cvmx_fpa_pool_info[pool].size * | |
119 | cvmx_fpa_pool_info[pool].starting_element_count; | |
120 | void *ptr; | |
121 | uint64_t address; | |
122 | ||
123 | count = 0; | |
124 | do { | |
125 | ptr = cvmx_fpa_alloc(pool); | |
126 | if (ptr) | |
127 | address = cvmx_ptr_to_phys(ptr); | |
128 | else | |
129 | address = 0; | |
130 | if (address) { | |
131 | if ((address >= base) && (address < finish) && | |
132 | (((address - | |
133 | base) % cvmx_fpa_pool_info[pool].size) == 0)) { | |
134 | count++; | |
135 | } else { | |
136 | cvmx_dprintf | |
137 | ("ERROR: cvmx_fpa_shutdown_pool: Illegal address 0x%llx in pool %s(%d)\n", | |
138 | (unsigned long long)address, | |
139 | cvmx_fpa_pool_info[pool].name, (int)pool); | |
140 | errors++; | |
141 | } | |
142 | } | |
143 | } while (address); | |
144 | ||
145 | #ifdef CVMX_ENABLE_PKO_FUNCTIONS | |
146 | if (pool == 0) | |
147 | cvmx_ipd_free_ptr(); | |
148 | #endif | |
149 | ||
150 | if (errors) { | |
151 | cvmx_dprintf | |
152 | ("ERROR: cvmx_fpa_shutdown_pool: Pool %s(%d) started at 0x%llx, ended at 0x%llx, with a step of 0x%llx\n", | |
153 | cvmx_fpa_pool_info[pool].name, (int)pool, | |
154 | (unsigned long long)base, (unsigned long long)finish, | |
155 | (unsigned long long)cvmx_fpa_pool_info[pool].size); | |
156 | return -errors; | |
157 | } else | |
158 | return 0; | |
159 | } | |
160 | ||
161 | uint64_t cvmx_fpa_get_block_size(uint64_t pool) | |
162 | { | |
163 | switch (pool) { | |
164 | case 0: | |
165 | return CVMX_FPA_POOL_0_SIZE; | |
166 | case 1: | |
167 | return CVMX_FPA_POOL_1_SIZE; | |
168 | case 2: | |
169 | return CVMX_FPA_POOL_2_SIZE; | |
170 | case 3: | |
171 | return CVMX_FPA_POOL_3_SIZE; | |
172 | case 4: | |
173 | return CVMX_FPA_POOL_4_SIZE; | |
174 | case 5: | |
175 | return CVMX_FPA_POOL_5_SIZE; | |
176 | case 6: | |
177 | return CVMX_FPA_POOL_6_SIZE; | |
178 | case 7: | |
179 | return CVMX_FPA_POOL_7_SIZE; | |
180 | default: | |
181 | return 0; | |
182 | } | |
183 | } |