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/*
* 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 "ummu.h"
#include "umem.h"
#include "uvmm.h"
#include <core/client.h>
#include <nvif/if0008.h>
#include <nvif/unpack.h>
static int
nvkm_ummu_sclass(struct nvkm_object *object, int index,
struct nvkm_oclass *oclass)
{
struct nvkm_mmu *mmu = nvkm_ummu(object)->mmu;
if (mmu->func->mem.user.oclass) {
if (index-- == 0) {
oclass->base = mmu->func->mem.user;
oclass->ctor = nvkm_umem_new;
return 0;
}
}
if (mmu->func->vmm.user.oclass) {
if (index-- == 0) {
oclass->base = mmu->func->vmm.user;
oclass->ctor = nvkm_uvmm_new;
return 0;
}
}
return -EINVAL;
}
static int
nvkm_ummu_heap(struct nvkm_ummu *ummu, void *argv, u32 argc)
{
struct nvkm_mmu *mmu = ummu->mmu;
union {
struct nvif_mmu_heap_v0 v0;
} *args = argv;
int ret = -ENOSYS;
u8 index;
if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
if ((index = args->v0.index) >= mmu->heap_nr)
return -EINVAL;
args->v0.size = mmu->heap[index].size;
} else
return ret;
return 0;
}
static int
nvkm_ummu_type(struct nvkm_ummu *ummu, void *argv, u32 argc)
{
struct nvkm_mmu *mmu = ummu->mmu;
union {
struct nvif_mmu_type_v0 v0;
} *args = argv;
int ret = -ENOSYS;
u8 type, index;
if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
if ((index = args->v0.index) >= mmu->type_nr)
return -EINVAL;
type = mmu->type[index].type;
args->v0.heap = mmu->type[index].heap;
args->v0.vram = !!(type & NVKM_MEM_VRAM);
args->v0.host = !!(type & NVKM_MEM_HOST);
args->v0.comp = !!(type & NVKM_MEM_COMP);
args->v0.disp = !!(type & NVKM_MEM_DISP);
args->v0.kind = !!(type & NVKM_MEM_KIND);
args->v0.mappable = !!(type & NVKM_MEM_MAPPABLE);
args->v0.coherent = !!(type & NVKM_MEM_COHERENT);
args->v0.uncached = !!(type & NVKM_MEM_UNCACHED);
} else
return ret;
return 0;
}
static int
nvkm_ummu_kind(struct nvkm_ummu *ummu, void *argv, u32 argc)
{
struct nvkm_mmu *mmu = ummu->mmu;
union {
struct nvif_mmu_kind_v0 v0;
} *args = argv;
const u8 *kind = NULL;
int ret = -ENOSYS, count = 0;
u8 kind_inv = 0;
if (mmu->func->kind)
kind = mmu->func->kind(mmu, &count, &kind_inv);
if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, true))) {
if (argc != args->v0.count * sizeof(*args->v0.data))
return -EINVAL;
if (args->v0.count > count)
return -EINVAL;
args->v0.kind_inv = kind_inv;
memcpy(args->v0.data, kind, args->v0.count);
} else
return ret;
return 0;
}
static int
nvkm_ummu_mthd(struct nvkm_object *object, u32 mthd, void *argv, u32 argc)
{
struct nvkm_ummu *ummu = nvkm_ummu(object);
switch (mthd) {
case NVIF_MMU_V0_HEAP: return nvkm_ummu_heap(ummu, argv, argc);
case NVIF_MMU_V0_TYPE: return nvkm_ummu_type(ummu, argv, argc);
case NVIF_MMU_V0_KIND: return nvkm_ummu_kind(ummu, argv, argc);
default:
break;
}
return -EINVAL;
}
static const struct nvkm_object_func
nvkm_ummu = {
.mthd = nvkm_ummu_mthd,
.sclass = nvkm_ummu_sclass,
};
int
nvkm_ummu_new(struct nvkm_device *device, const struct nvkm_oclass *oclass,
void *argv, u32 argc, struct nvkm_object **pobject)
{
union {
struct nvif_mmu_v0 v0;
} *args = argv;
struct nvkm_mmu *mmu = device->mmu;
struct nvkm_ummu *ummu;
int ret = -ENOSYS, kinds = 0;
u8 unused = 0;
if (mmu->func->kind)
mmu->func->kind(mmu, &kinds, &unused);
if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
args->v0.dmabits = mmu->dma_bits;
args->v0.heap_nr = mmu->heap_nr;
args->v0.type_nr = mmu->type_nr;
args->v0.kind_nr = kinds;
} else
return ret;
if (!(ummu = kzalloc(sizeof(*ummu), GFP_KERNEL)))
return -ENOMEM;
nvkm_object_ctor(&nvkm_ummu, oclass, &ummu->object);
ummu->mmu = mmu;
*pobject = &ummu->object;
return 0;
}
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