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#ifndef __NVKM_VMM_H__
#define __NVKM_VMM_H__
#include "priv.h"
#include <core/memory.h>
enum nvkm_memory_target;
struct nvkm_vmm_pt {
/* Some GPUs have a mapping level with a dual page tables to
* support large and small pages in the same address-range.
*
* We track the state of both page tables in one place, which
* is why there's multiple PT pointers/refcounts here.
*/
struct nvkm_mmu_pt *pt[2];
u32 refs[2];
/* Page size handled by this PT.
*
* Tesla backend needs to know this when writinge PDEs,
* otherwise unnecessary.
*/
u8 page;
/* Entire page table sparse.
*
* Used to propagate sparseness to child page tables.
*/
bool sparse:1;
/* Tracking for page directories.
*
* The array is indexed by PDE, and will either point to the
* child page table, or indicate the PDE is marked as sparse.
**/
#define NVKM_VMM_PDE_INVALID(pde) IS_ERR_OR_NULL(pde)
#define NVKM_VMM_PDE_SPARSED(pde) IS_ERR(pde)
#define NVKM_VMM_PDE_SPARSE ERR_PTR(-EBUSY)
struct nvkm_vmm_pt **pde;
/* Tracking for dual page tables.
*
* There's one entry for each LPTE, keeping track of whether
* there are valid SPTEs in the same address-range.
*
* This information is used to manage LPTE state transitions.
*/
#define NVKM_VMM_PTE_SPARSE 0x80
#define NVKM_VMM_PTE_VALID 0x40
#define NVKM_VMM_PTE_SPTES 0x3f
u8 pte[];
};
typedef void (*nvkm_vmm_pxe_func)(struct nvkm_vmm *,
struct nvkm_mmu_pt *, u32 ptei, u32 ptes);
typedef void (*nvkm_vmm_pde_func)(struct nvkm_vmm *,
struct nvkm_vmm_pt *, u32 pdei);
typedef void (*nvkm_vmm_pte_func)(struct nvkm_vmm *, struct nvkm_mmu_pt *,
u32 ptei, u32 ptes, struct nvkm_vmm_map *);
struct nvkm_vmm_desc_func {
nvkm_vmm_pxe_func invalid;
nvkm_vmm_pxe_func unmap;
nvkm_vmm_pxe_func sparse;
nvkm_vmm_pde_func pde;
nvkm_vmm_pte_func mem;
nvkm_vmm_pte_func dma;
nvkm_vmm_pte_func sgl;
};
extern const struct nvkm_vmm_desc_func gf100_vmm_pgd;
void gf100_vmm_pgd_pde(struct nvkm_vmm *, struct nvkm_vmm_pt *, u32);
extern const struct nvkm_vmm_desc_func gf100_vmm_pgt;
void gf100_vmm_pgt_unmap(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32);
void gf100_vmm_pgt_mem(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32,
struct nvkm_vmm_map *);
void gf100_vmm_pgt_dma(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32,
struct nvkm_vmm_map *);
void gf100_vmm_pgt_sgl(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32,
struct nvkm_vmm_map *);
void gk104_vmm_lpt_invalid(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32);
struct nvkm_vmm_desc {
enum {
PGD,
PGT,
SPT,
LPT,
} type;
u8 bits; /* VMA bits covered by PT. */
u8 size; /* Bytes-per-PTE. */
u32 align; /* PT address alignment. */
const struct nvkm_vmm_desc_func *func;
};
extern const struct nvkm_vmm_desc gk104_vmm_desc_16_12[];
extern const struct nvkm_vmm_desc gk104_vmm_desc_16_16[];
extern const struct nvkm_vmm_desc gk104_vmm_desc_17_12[];
extern const struct nvkm_vmm_desc gk104_vmm_desc_17_17[];
extern const struct nvkm_vmm_desc gm200_vmm_desc_16_12[];
extern const struct nvkm_vmm_desc gm200_vmm_desc_16_16[];
extern const struct nvkm_vmm_desc gm200_vmm_desc_17_12[];
extern const struct nvkm_vmm_desc gm200_vmm_desc_17_17[];
extern const struct nvkm_vmm_desc gp100_vmm_desc_12[];
extern const struct nvkm_vmm_desc gp100_vmm_desc_16[];
struct nvkm_vmm_page {
u8 shift;
const struct nvkm_vmm_desc *desc;
#define NVKM_VMM_PAGE_SPARSE 0x01
#define NVKM_VMM_PAGE_VRAM 0x02
#define NVKM_VMM_PAGE_HOST 0x04
#define NVKM_VMM_PAGE_COMP 0x08
#define NVKM_VMM_PAGE_Sxxx (NVKM_VMM_PAGE_SPARSE)
#define NVKM_VMM_PAGE_xVxx (NVKM_VMM_PAGE_VRAM)
#define NVKM_VMM_PAGE_SVxx (NVKM_VMM_PAGE_Sxxx | NVKM_VMM_PAGE_VRAM)
#define NVKM_VMM_PAGE_xxHx (NVKM_VMM_PAGE_HOST)
#define NVKM_VMM_PAGE_SxHx (NVKM_VMM_PAGE_Sxxx | NVKM_VMM_PAGE_HOST)
#define NVKM_VMM_PAGE_xVHx (NVKM_VMM_PAGE_xVxx | NVKM_VMM_PAGE_HOST)
#define NVKM_VMM_PAGE_SVHx (NVKM_VMM_PAGE_SVxx | NVKM_VMM_PAGE_HOST)
#define NVKM_VMM_PAGE_xVxC (NVKM_VMM_PAGE_xVxx | NVKM_VMM_PAGE_COMP)
#define NVKM_VMM_PAGE_SVxC (NVKM_VMM_PAGE_SVxx | NVKM_VMM_PAGE_COMP)
#define NVKM_VMM_PAGE_xxHC (NVKM_VMM_PAGE_xxHx | NVKM_VMM_PAGE_COMP)
#define NVKM_VMM_PAGE_SxHC (NVKM_VMM_PAGE_SxHx | NVKM_VMM_PAGE_COMP)
u8 type;
};
struct nvkm_vmm_func {
int (*join)(struct nvkm_vmm *, struct nvkm_memory *inst);
void (*part)(struct nvkm_vmm *, struct nvkm_memory *inst);
int (*aper)(enum nvkm_memory_target);
int (*valid)(struct nvkm_vmm *, void *argv, u32 argc,
struct nvkm_vmm_map *);
void (*flush)(struct nvkm_vmm *, int depth);
u64 page_block;
const struct nvkm_vmm_page page[];
};
struct nvkm_vmm_join {
struct nvkm_memory *inst;
struct list_head head;
};
int nvkm_vmm_new_(const struct nvkm_vmm_func *, struct nvkm_mmu *,
u32 pd_header, u64 addr, u64 size, struct lock_class_key *,
const char *name, struct nvkm_vmm **);
int nvkm_vmm_ctor(const struct nvkm_vmm_func *, struct nvkm_mmu *,
u32 pd_header, u64 addr, u64 size, struct lock_class_key *,
const char *name, struct nvkm_vmm *);
struct nvkm_vma *nvkm_vmm_node_search(struct nvkm_vmm *, u64 addr);
int nvkm_vmm_get_locked(struct nvkm_vmm *, bool getref, bool mapref,
bool sparse, u8 page, u8 align, u64 size,
struct nvkm_vma **pvma);
void nvkm_vmm_put_locked(struct nvkm_vmm *, struct nvkm_vma *);
void nvkm_vmm_unmap_locked(struct nvkm_vmm *, struct nvkm_vma *);
void nvkm_vmm_unmap_region(struct nvkm_vmm *vmm, struct nvkm_vma *vma);
struct nvkm_vma *nvkm_vma_tail(struct nvkm_vma *, u64 tail);
void nvkm_vmm_node_insert(struct nvkm_vmm *, struct nvkm_vma *);
int nv04_vmm_new_(const struct nvkm_vmm_func *, struct nvkm_mmu *, u32,
u64, u64, void *, u32, struct lock_class_key *,
const char *, struct nvkm_vmm **);
int nv04_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *);
int gf100_vmm_new_(const struct nvkm_vmm_func *, const struct nvkm_vmm_func *,
struct nvkm_mmu *, u64, u64, void *, u32,
struct lock_class_key *, const char *, struct nvkm_vmm **);
int gf100_vmm_join_(struct nvkm_vmm *, struct nvkm_memory *, u64 base);
int gf100_vmm_join(struct nvkm_vmm *, struct nvkm_memory *);
void gf100_vmm_part(struct nvkm_vmm *, struct nvkm_memory *);
int gf100_vmm_aper(enum nvkm_memory_target);
int gf100_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *);
void gf100_vmm_flush_(struct nvkm_vmm *, int);
void gf100_vmm_flush(struct nvkm_vmm *, int);
int gk20a_vmm_aper(enum nvkm_memory_target);
int gm200_vmm_new_(const struct nvkm_vmm_func *, const struct nvkm_vmm_func *,
struct nvkm_mmu *, u64, u64, void *, u32,
struct lock_class_key *, const char *, struct nvkm_vmm **);
int gm200_vmm_join_(struct nvkm_vmm *, struct nvkm_memory *, u64 base);
int gm200_vmm_join(struct nvkm_vmm *, struct nvkm_memory *);
int gp100_vmm_join(struct nvkm_vmm *, struct nvkm_memory *);
int gp100_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *);
void gp100_vmm_flush(struct nvkm_vmm *, int);
int nv04_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
struct lock_class_key *, const char *, struct nvkm_vmm **);
int nv41_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
struct lock_class_key *, const char *, struct nvkm_vmm **);
int nv44_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
struct lock_class_key *, const char *, struct nvkm_vmm **);
int nv50_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
struct lock_class_key *, const char *, struct nvkm_vmm **);
int g84_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
struct lock_class_key *, const char *, struct nvkm_vmm **);
int gf100_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
struct lock_class_key *, const char *, struct nvkm_vmm **);
int gk104_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
struct lock_class_key *, const char *, struct nvkm_vmm **);
int gk20a_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
struct lock_class_key *, const char *, struct nvkm_vmm **);
int gm200_vmm_new_fixed(struct nvkm_mmu *, u64, u64, void *, u32,
struct lock_class_key *, const char *,
struct nvkm_vmm **);
int gm200_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
struct lock_class_key *, const char *,
struct nvkm_vmm **);
int gm20b_vmm_new_fixed(struct nvkm_mmu *, u64, u64, void *, u32,
struct lock_class_key *, const char *,
struct nvkm_vmm **);
int gm20b_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
struct lock_class_key *, const char *,
struct nvkm_vmm **);
int gp100_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
struct lock_class_key *, const char *,
struct nvkm_vmm **);
int gp10b_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
struct lock_class_key *, const char *,
struct nvkm_vmm **);
#define VMM_PRINT(l,v,p,f,a...) do { \
struct nvkm_vmm *_vmm = (v); \
if (CONFIG_NOUVEAU_DEBUG >= (l) && _vmm->debug >= (l)) { \
nvkm_printk_(&_vmm->mmu->subdev, 0, p, "%s: "f"\n", \
_vmm->name, ##a); \
} \
} while(0)
#define VMM_DEBUG(v,f,a...) VMM_PRINT(NV_DBG_DEBUG, (v), info, f, ##a)
#define VMM_TRACE(v,f,a...) VMM_PRINT(NV_DBG_TRACE, (v), info, f, ##a)
#define VMM_SPAM(v,f,a...) VMM_PRINT(NV_DBG_SPAM , (v), dbg, f, ##a)
#define VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL,BASE,SIZE,NEXT) do { \
nvkm_kmap((PT)->memory); \
while (PTEN) { \
u64 _ptes = ((SIZE) - MAP->off) >> MAP->page->shift; \
u64 _addr = ((BASE) + MAP->off); \
\
if (_ptes > PTEN) { \
MAP->off += PTEN << MAP->page->shift; \
_ptes = PTEN; \
} else { \
MAP->off = 0; \
NEXT; \
} \
\
VMM_SPAM(VMM, "ITER %08x %08x PTE(s)", PTEI, (u32)_ptes); \
\
FILL(VMM, PT, PTEI, _ptes, MAP, _addr); \
PTEI += _ptes; \
PTEN -= _ptes; \
}; \
nvkm_done((PT)->memory); \
} while(0)
#define VMM_MAP_ITER_MEM(VMM,PT,PTEI,PTEN,MAP,FILL) \
VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL, \
((u64)MAP->mem->offset << NVKM_RAM_MM_SHIFT), \
((u64)MAP->mem->length << NVKM_RAM_MM_SHIFT), \
(MAP->mem = MAP->mem->next))
#define VMM_MAP_ITER_DMA(VMM,PT,PTEI,PTEN,MAP,FILL) \
VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL, \
*MAP->dma, PAGE_SIZE, MAP->dma++)
#define VMM_MAP_ITER_SGL(VMM,PT,PTEI,PTEN,MAP,FILL) \
VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL, \
sg_dma_address(MAP->sgl), sg_dma_len(MAP->sgl), \
(MAP->sgl = sg_next(MAP->sgl)))
#define VMM_FO(m,o,d,c,b) nvkm_fo##b((m)->memory, (o), (d), (c))
#define VMM_WO(m,o,d,c,b) nvkm_wo##b((m)->memory, (o), (d))
#define VMM_XO(m,v,o,d,c,b,fn,f,a...) do { \
const u32 _pteo = (o); u##b _data = (d); \
VMM_SPAM((v), " %010llx "f, (m)->addr + _pteo, _data, ##a); \
VMM_##fn((m), (m)->base + _pteo, _data, (c), b); \
} while(0)
#define VMM_WO032(m,v,o,d) VMM_XO((m),(v),(o),(d), 1, 32, WO, "%08x")
#define VMM_FO032(m,v,o,d,c) \
VMM_XO((m),(v),(o),(d),(c), 32, FO, "%08x %08x", (c))
#define VMM_WO064(m,v,o,d) VMM_XO((m),(v),(o),(d), 1, 64, WO, "%016llx")
#define VMM_FO064(m,v,o,d,c) \
VMM_XO((m),(v),(o),(d),(c), 64, FO, "%016llx %08x", (c))
#define VMM_XO128(m,v,o,lo,hi,c,f,a...) do { \
u32 _pteo = (o), _ptes = (c); \
const u64 _addr = (m)->addr + _pteo; \
VMM_SPAM((v), " %010llx %016llx%016llx"f, _addr, (hi), (lo), ##a); \
while (_ptes--) { \
nvkm_wo64((m)->memory, (m)->base + _pteo + 0, (lo)); \
nvkm_wo64((m)->memory, (m)->base + _pteo + 8, (hi)); \
_pteo += 0x10; \
} \
} while(0)
#define VMM_WO128(m,v,o,lo,hi) VMM_XO128((m),(v),(o),(lo),(hi), 1, "")
#define VMM_FO128(m,v,o,lo,hi,c) do { \
nvkm_kmap((m)->memory); \
VMM_XO128((m),(v),(o),(lo),(hi),(c), " %08x", (c)); \
nvkm_done((m)->memory); \
} while(0)
#endif
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