mmu.h (1446B)
1#ifndef __NVIF_MMU_H__ 2#define __NVIF_MMU_H__ 3#include <nvif/object.h> 4 5struct nvif_mmu { 6 struct nvif_object object; 7 u8 dmabits; 8 u8 heap_nr; 9 u8 type_nr; 10 u8 kind_inv; 11 u16 kind_nr; 12 s32 mem; 13 14 struct { 15 u64 size; 16 } *heap; 17 18 struct { 19#define NVIF_MEM_VRAM 0x01 20#define NVIF_MEM_HOST 0x02 21#define NVIF_MEM_COMP 0x04 22#define NVIF_MEM_DISP 0x08 23#define NVIF_MEM_KIND 0x10 24#define NVIF_MEM_MAPPABLE 0x20 25#define NVIF_MEM_COHERENT 0x40 26#define NVIF_MEM_UNCACHED 0x80 27 u8 type; 28 u8 heap; 29 } *type; 30 31 u8 *kind; 32}; 33 34int nvif_mmu_ctor(struct nvif_object *, const char *name, s32 oclass, 35 struct nvif_mmu *); 36void nvif_mmu_dtor(struct nvif_mmu *); 37 38static inline bool 39nvif_mmu_kind_valid(struct nvif_mmu *mmu, u8 kind) 40{ 41 if (kind) { 42 if (kind >= mmu->kind_nr || mmu->kind[kind] == mmu->kind_inv) 43 return false; 44 } 45 return true; 46} 47 48static inline int 49nvif_mmu_type(struct nvif_mmu *mmu, u8 mask) 50{ 51 int i; 52 for (i = 0; i < mmu->type_nr; i++) { 53 if ((mmu->type[i].type & mask) == mask) 54 return i; 55 } 56 return -EINVAL; 57} 58#endif