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e47f90d189
PD#172483 Problem: Add reserved & cma support for 4.9. Solution: 1. add tvp padding, for test. 2. add no-cma-tvp,to force not used cma for tvp. 3. add nomap for reserved memroy detective. 4. add res & cma two mem region on same board. 5. add clear-map property for codec_mm_cma. Verify: Test this function with Android_O-MR1(GTVS) & ExoPlayer. Change-Id: Ib20e0e9bc4725afb271de97543ce5ebf3bfcfb29 Signed-off-by: Zhi Zhou <zhi.zhou@amlogic.com>
38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
#ifndef __CMA_H__
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#define __CMA_H__
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/*
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* There is always at least global CMA area and a few optional
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* areas configured in kernel .config.
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*/
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#ifdef CONFIG_CMA_AREAS
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#define MAX_CMA_AREAS (1 + CONFIG_CMA_AREAS)
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#else
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#define MAX_CMA_AREAS (0)
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#endif
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struct cma;
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extern unsigned long totalcma_pages;
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extern phys_addr_t cma_get_base(const struct cma *cma);
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extern unsigned long cma_get_size(const struct cma *cma);
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extern int __init cma_declare_contiguous(phys_addr_t base,
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phys_addr_t size, phys_addr_t limit,
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phys_addr_t alignment, unsigned int order_per_bit,
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bool fixed, struct cma **res_cma);
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extern int cma_init_reserved_mem(phys_addr_t base, phys_addr_t size,
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unsigned int order_per_bit,
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struct cma **res_cma);
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extern struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align);
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extern bool cma_release(struct cma *cma, const struct page *pages, unsigned int count);
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#ifdef CONFIG_AMLOGIC_CMA
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extern void cma_init_clear(struct cma *cma, bool clear);
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extern int setup_cma_full_pagemap(struct cma *cma);
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extern int cma_mmu_op(struct page *page, int count, bool set);
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#endif
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#endif
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