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