59 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			59 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
#ifndef __NVIF_MMU_H__
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#define __NVIF_MMU_H__
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#include <nvif/object.h>
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struct nvif_mmu {
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	struct nvif_object object;
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	u8  dmabits;
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	u8  heap_nr;
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	u8  type_nr;
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	u8  kind_inv;
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	u16 kind_nr;
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	s32 mem;
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	struct {
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		u64 size;
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	} *heap;
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	struct {
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#define NVIF_MEM_VRAM                                                      0x01
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#define NVIF_MEM_HOST                                                      0x02
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#define NVIF_MEM_COMP                                                      0x04
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#define NVIF_MEM_DISP                                                      0x08
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#define NVIF_MEM_KIND                                                      0x10
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#define NVIF_MEM_MAPPABLE                                                  0x20
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#define NVIF_MEM_COHERENT                                                  0x40
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#define NVIF_MEM_UNCACHED                                                  0x80
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		u8 type;
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		u8 heap;
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	} *type;
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	u8 *kind;
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};
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int nvif_mmu_ctor(struct nvif_object *, const char *name, s32 oclass,
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		  struct nvif_mmu *);
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void nvif_mmu_dtor(struct nvif_mmu *);
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static inline bool
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nvif_mmu_kind_valid(struct nvif_mmu *mmu, u8 kind)
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{
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	if (kind) {
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		if (kind >= mmu->kind_nr || mmu->kind[kind] == mmu->kind_inv)
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			return false;
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	}
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	return true;
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}
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static inline int
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nvif_mmu_type(struct nvif_mmu *mmu, u8 mask)
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{
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	int i;
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	for (i = 0; i < mmu->type_nr; i++) {
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		if ((mmu->type[i].type & mask) == mask)
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			return i;
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	}
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	return -EINVAL;
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}
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#endif
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