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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>
30 lines
616 B
C
30 lines
616 B
C
#ifndef __MM_CMA_H__
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#define __MM_CMA_H__
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struct cma {
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unsigned long base_pfn;
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unsigned long count;
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unsigned long *bitmap;
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unsigned int order_per_bit; /* Order of pages represented by one bit */
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struct mutex lock;
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#ifdef CONFIG_CMA_DEBUGFS
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struct hlist_head mem_head;
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spinlock_t mem_head_lock;
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#endif
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#ifdef CONFIG_AMLOGIC_CMA /* clear kernel space mapping after driver it */
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bool clear_map;
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#endif
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};
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extern struct cma cma_areas[MAX_CMA_AREAS];
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extern unsigned cma_area_count;
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static inline unsigned long cma_bitmap_maxno(struct cma *cma)
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{
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return cma->count >> cma->order_per_bit;
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}
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#endif
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