/*
* Copyright 2017 Red Hat Inc .
*
* Permission is hereby granted , free of charge , to any person obtaining a
* copy of this software and associated documentation files ( the " Software " ) ,
* to deal in the Software without restriction , including without limitation
* the rights to use , copy , modify , merge , publish , distribute , sublicense ,
* and / or sell copies of the Software , and to permit persons to whom the
* Software is furnished to do so , subject to the following conditions :
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software .
*
* THE SOFTWARE IS PROVIDED " AS IS " , WITHOUT WARRANTY OF ANY KIND , EXPRESS OR
* IMPLIED , INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY ,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT . IN NO EVENT SHALL
* THE COPYRIGHT HOLDER ( S ) OR AUTHOR ( S ) BE LIABLE FOR ANY CLAIM , DAMAGES OR
* OTHER LIABILITY , WHETHER IN AN ACTION OF CONTRACT , TORT OR OTHERWISE ,
* ARISING FROM , OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE .
*/
#include "vmm.h"
#include <nvif/ifb00d.h>
#include <nvif/unpack.h>
static void
gm200_vmm_pgt_sparse(struct nvkm_vmm *vmm,
struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes)
{
/* VALID_FALSE + VOL tells the MMU to treat the PTE as sparse. */
VMM_FO064(pt, vmm, ptei * 8 , BIT_ULL(32 ) /* VOL. */, ptes);
}
static const struct nvkm_vmm_desc_func
gm200_vmm_spt = {
.unmap = gf100_vmm_pgt_unmap,
.sparse = gm200_vmm_pgt_sparse,
.mem = gf100_vmm_pgt_mem,
.dma = gf100_vmm_pgt_dma,
.sgl = gf100_vmm_pgt_sgl,
};
static const struct nvkm_vmm_desc_func
gm200_vmm_lpt = {
.invalid = gk104_vmm_lpt_invalid,
.unmap = gf100_vmm_pgt_unmap,
.sparse = gm200_vmm_pgt_sparse,
.mem = gf100_vmm_pgt_mem,
};
static void
gm200_vmm_pgd_sparse(struct nvkm_vmm *vmm,
struct nvkm_mmu_pt *pt, u32 pdei, u32 pdes)
{
/* VALID_FALSE + VOL_BIG tells the MMU to treat the PDE as sparse. */
VMM_FO064(pt, vmm, pdei * 8 , BIT_ULL(35 ) /* VOL_BIG. */, pdes);
}
static const struct nvkm_vmm_desc_func
gm200_vmm_pgd = {
.unmap = gf100_vmm_pgt_unmap,
.sparse = gm200_vmm_pgd_sparse,
.pde = gf100_vmm_pgd_pde,
};
const struct nvkm_vmm_desc
gm200_vmm_desc_17_12[] = {
{ SPT, 15 , 8 , 0 x1000, &gm200_vmm_spt },
{ PGD, 13 , 8 , 0 x1000, &gm200_vmm_pgd },
{}
};
const struct nvkm_vmm_desc
gm200_vmm_desc_17_17[] = {
{ LPT, 10 , 8 , 0 x1000, &gm200_vmm_lpt },
{ PGD, 13 , 8 , 0 x1000, &gm200_vmm_pgd },
{}
};
const struct nvkm_vmm_desc
gm200_vmm_desc_16_12[] = {
{ SPT, 14 , 8 , 0 x1000, &gm200_vmm_spt },
{ PGD, 14 , 8 , 0 x1000, &gm200_vmm_pgd },
{}
};
const struct nvkm_vmm_desc
gm200_vmm_desc_16_16[] = {
{ LPT, 10 , 8 , 0 x1000, &gm200_vmm_lpt },
{ PGD, 14 , 8 , 0 x1000, &gm200_vmm_pgd },
{}
};
int
gm200_vmm_join_(struct nvkm_vmm *vmm, struct nvkm_memory *inst, u64 base)
{
if (vmm->func->page[1 ].shift == 16 )
base |= BIT_ULL(11 );
return gf100_vmm_join_(vmm, inst, base);
}
int
gm200_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
{
return gm200_vmm_join_(vmm, inst, 0 );
}
static const struct nvkm_vmm_func
gm200_vmm_17 = {
.join = gm200_vmm_join,
.part = gf100_vmm_part,
.aper = gf100_vmm_aper,
.valid = gf100_vmm_valid,
.flush = gf100_vmm_flush,
.invalidate_pdb = gf100_vmm_invalidate_pdb,
.page = {
{ 27 , &gm200_vmm_desc_17_17[1 ], NVKM_VMM_PAGE_Sxxx },
{ 17 , &gm200_vmm_desc_17_17[0 ], NVKM_VMM_PAGE_SVxC },
{ 12 , &gm200_vmm_desc_17_12[0 ], NVKM_VMM_PAGE_SVHx },
{}
}
};
static const struct nvkm_vmm_func
gm200_vmm_16 = {
.join = gm200_vmm_join,
.part = gf100_vmm_part,
.aper = gf100_vmm_aper,
.valid = gf100_vmm_valid,
.flush = gf100_vmm_flush,
.invalidate_pdb = gf100_vmm_invalidate_pdb,
.page = {
{ 27 , &gm200_vmm_desc_16_16[1 ], NVKM_VMM_PAGE_Sxxx },
{ 16 , &gm200_vmm_desc_16_16[0 ], NVKM_VMM_PAGE_SVxC },
{ 12 , &gm200_vmm_desc_16_12[0 ], NVKM_VMM_PAGE_SVHx },
{}
}
};
int
gm200_vmm_new_(const struct nvkm_vmm_func *func_16,
const struct nvkm_vmm_func *func_17,
struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
void *argv, u32 argc, struct lock_class_key *key,
const char *name, struct nvkm_vmm **pvmm)
{
const struct nvkm_vmm_func *func;
union {
struct gm200_vmm_vn vn;
struct gm200_vmm_v0 v0;
} *args = argv;
int ret = -ENOSYS;
if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0 , 0 , false ))) {
switch (args->v0.bigpage) {
case 16 : func = func_16; break ;
case 17 : func = func_17; break ;
default :
return -EINVAL;
}
} else
if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
func = func_17;
} else
return ret;
return nvkm_vmm_new_(func, mmu, 0 , managed, addr, size, key, name, pvmm);
}
int
gm200_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
void *argv, u32 argc, struct lock_class_key *key,
const char *name, struct nvkm_vmm **pvmm)
{
return gm200_vmm_new_(&gm200_vmm_16, &gm200_vmm_17, mmu, managed, addr,
size, argv, argc, key, name, pvmm);
}
int
gm200_vmm_new_fixed(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
void *argv, u32 argc, struct lock_class_key *key,
const char *name, struct nvkm_vmm **pvmm)
{
return gf100_vmm_new_(&gm200_vmm_16, &gm200_vmm_17, mmu, managed, addr,
size, argv, argc, key, name, pvmm);
}
Messung V0.5 in Prozent C=98 H=100 G=98
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-10-07)
¤
*© Formatika GbR, Deutschland