| 1 | /* |
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| 2 | * SRAM pool for tiny memories not otherwise managed. |
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| 3 | * |
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| 4 | * Copyright (C) 2010 Paul Mundt |
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| 5 | * |
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| 6 | * This file is subject to the terms and conditions of the GNU General Public |
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| 7 | * License. See the file "COPYING" in the main directory of this archive |
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| 8 | * for more details. |
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| 9 | */ |
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| 10 | #include <linux/init.h> |
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| 11 | #include <linux/kernel.h> |
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| 12 | #include <linux/errno.h> |
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| 13 | #include <asm/sram.h> |
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| 14 | |
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| 15 | /* |
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| 16 | * This provides a standard SRAM pool for tiny memories that can be |
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| 17 | * added either by the CPU or the platform code. Typical SRAM sizes |
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| 18 | * to be inserted in to the pool will generally be less than the page |
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| 19 | * size, with anything more reasonably sized handled as a NUMA memory |
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| 20 | * node. |
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| 21 | */ |
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| 22 | struct gen_pool *sram_pool; |
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| 23 | |
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| 24 | static int __init sram_pool_init(void) |
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| 25 | { |
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| 26 | /* |
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| 27 | * This is a global pool, we don't care about node locality. |
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| 28 | */ |
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| 29 | sram_pool = gen_pool_create(1, -1); |
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| 30 | if (unlikely(!sram_pool)) |
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| 31 | return -ENOMEM; |
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| 32 | |
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| 33 | return 0; |
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| 34 | } |
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| 35 | core_initcall(sram_pool_init); |
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| 36 | |
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