/* SPDX-License-Identifier: MIT */
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#ifndef __NVKM_MEMORY_H__
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#define __NVKM_MEMORY_H__
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#include <core/os.h>
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struct nvkm_device;
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struct nvkm_vma;
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struct nvkm_vmm;
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struct nvkm_tags {
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struct nvkm_mm_node *mn;
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refcount_t refcount;
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};
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enum nvkm_memory_target {
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NVKM_MEM_TARGET_INST, /* instance memory */
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NVKM_MEM_TARGET_VRAM, /* video memory */
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NVKM_MEM_TARGET_HOST, /* coherent system memory */
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NVKM_MEM_TARGET_NCOH, /* non-coherent system memory */
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};
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struct nvkm_memory {
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const struct nvkm_memory_func *func;
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const struct nvkm_memory_ptrs *ptrs;
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struct kref kref;
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struct nvkm_tags *tags;
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};
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struct nvkm_memory_func {
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void *(*dtor)(struct nvkm_memory *);
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enum nvkm_memory_target (*target)(struct nvkm_memory *);
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u8 (*page)(struct nvkm_memory *);
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u64 (*bar2)(struct nvkm_memory *);
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u64 (*addr)(struct nvkm_memory *);
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u64 (*size)(struct nvkm_memory *);
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void (*boot)(struct nvkm_memory *, struct nvkm_vmm *);
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void __iomem *(*acquire)(struct nvkm_memory *);
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void (*release)(struct nvkm_memory *);
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int (*map)(struct nvkm_memory *, u64 offset, struct nvkm_vmm *,
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struct nvkm_vma *, void *argv, u32 argc);
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};
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struct nvkm_memory_ptrs {
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u32 (*rd32)(struct nvkm_memory *, u64 offset);
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void (*wr32)(struct nvkm_memory *, u64 offset, u32 data);
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};
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void nvkm_memory_ctor(const struct nvkm_memory_func *, struct nvkm_memory *);
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int nvkm_memory_new(struct nvkm_device *, enum nvkm_memory_target,
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u64 size, u32 align, bool zero, struct nvkm_memory **);
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struct nvkm_memory *nvkm_memory_ref(struct nvkm_memory *);
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void nvkm_memory_unref(struct nvkm_memory **);
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int nvkm_memory_tags_get(struct nvkm_memory *, struct nvkm_device *, u32 tags,
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void (*clear)(struct nvkm_device *, u32, u32),
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struct nvkm_tags **);
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void nvkm_memory_tags_put(struct nvkm_memory *, struct nvkm_device *,
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struct nvkm_tags **);
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#define nvkm_memory_target(p) (p)->func->target(p)
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#define nvkm_memory_page(p) (p)->func->page(p)
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#define nvkm_memory_bar2(p) (p)->func->bar2(p)
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#define nvkm_memory_addr(p) (p)->func->addr(p)
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#define nvkm_memory_size(p) (p)->func->size(p)
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#define nvkm_memory_boot(p,v) (p)->func->boot((p),(v))
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#define nvkm_memory_map(p,o,vm,va,av,ac) \
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(p)->func->map((p),(o),(vm),(va),(av),(ac))
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/* accessor macros - kmap()/done() must bracket use of the other accessor
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* macros to guarantee correct behaviour across all chipsets
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*/
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#define nvkm_kmap(o) (o)->func->acquire(o)
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#define nvkm_done(o) (o)->func->release(o)
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#define nvkm_ro32(o,a) (o)->ptrs->rd32((o), (a))
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#define nvkm_wo32(o,a,d) (o)->ptrs->wr32((o), (a), (d))
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#define nvkm_mo32(o,a,m,d) ({ \
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u32 _addr = (a), _data = nvkm_ro32((o), _addr); \
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nvkm_wo32((o), _addr, (_data & ~(m)) | (d)); \
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_data; \
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})
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#define nvkm_wo64(o,a,d) do { \
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u64 __a = (a), __d = (d); \
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nvkm_wo32((o), __a + 0, lower_32_bits(__d)); \
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nvkm_wo32((o), __a + 4, upper_32_bits(__d)); \
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} while(0)
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#define nvkm_robj(o,a,p,s) do { \
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u32 _addr = (a), _size = (s) >> 2, *_data = (void *)(p); \
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while (_size--) { \
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*(_data++) = nvkm_ro32((o), _addr); \
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_addr += 4; \
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} \
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} while(0)
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#define nvkm_wobj(o,a,p,s) do { \
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u32 _addr = (a), _size = (s) >> 2, *_data = (void *)(p); \
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while (_size--) { \
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nvkm_wo32((o), _addr, *(_data++)); \
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_addr += 4; \
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} \
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} while(0)
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#define nvkm_fill(t,s,o,a,d,c) do { \
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u64 _a = (a), _c = (c), _d = (d), _o = _a >> s, _s = _c << s; \
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u##t __iomem *_m = nvkm_kmap(o); \
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if (likely(_m)) { \
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if (_d) { \
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while (_c--) \
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iowrite##t##_native(_d, &_m[_o++]); \
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} else { \
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memset_io(&_m[_o], _d, _s); \
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} \
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} else { \
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for (; _c; _c--, _a += BIT(s)) \
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nvkm_wo##t((o), _a, _d); \
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} \
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nvkm_done(o); \
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} while(0)
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#define nvkm_fo32(o,a,d,c) nvkm_fill(32, 2, (o), (a), (d), (c))
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#define nvkm_fo64(o,a,d,c) nvkm_fill(64, 3, (o), (a), (d), (c))
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#endif
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