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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 <nvif/mmu.h>
#include <nvif/class.h>
#include <nvif/if0008.h>
void
nvif_mmu_fini(struct nvif_mmu *mmu)
{
kfree(mmu->kind);
kfree(mmu->type);
kfree(mmu->heap);
nvif_object_fini(&mmu->object);
}
int
nvif_mmu_init(struct nvif_object *parent, s32 oclass, struct nvif_mmu *mmu)
{
static const struct nvif_mclass mems[] = {
{ NVIF_CLASS_MEM_GF100, -1 },
{ NVIF_CLASS_MEM_NV50 , -1 },
{ NVIF_CLASS_MEM_NV04 , -1 },
{}
};
struct nvif_mmu_v0 args;
int ret, i;
args.version = 0;
mmu->heap = NULL;
mmu->type = NULL;
mmu->kind = NULL;
ret = nvif_object_init(parent, 0, oclass, &args, sizeof(args),
&mmu->object);
if (ret)
goto done;
mmu->dmabits = args.dmabits;
mmu->heap_nr = args.heap_nr;
mmu->type_nr = args.type_nr;
mmu->kind_nr = args.kind_nr;
ret = nvif_mclass(&mmu->object, mems);
if (ret < 0)
goto done;
mmu->mem = mems[ret].oclass;
mmu->heap = kmalloc_array(mmu->heap_nr, sizeof(*mmu->heap),
GFP_KERNEL);
mmu->type = kmalloc_array(mmu->type_nr, sizeof(*mmu->type),
GFP_KERNEL);
if (ret = -ENOMEM, !mmu->heap || !mmu->type)
goto done;
mmu->kind = kmalloc_array(mmu->kind_nr, sizeof(*mmu->kind),
GFP_KERNEL);
if (!mmu->kind && mmu->kind_nr)
goto done;
for (i = 0; i < mmu->heap_nr; i++) {
struct nvif_mmu_heap_v0 args = { .index = i };
ret = nvif_object_mthd(&mmu->object, NVIF_MMU_V0_HEAP,
&args, sizeof(args));
if (ret)
goto done;
mmu->heap[i].size = args.size;
}
for (i = 0; i < mmu->type_nr; i++) {
struct nvif_mmu_type_v0 args = { .index = i };
ret = nvif_object_mthd(&mmu->object, NVIF_MMU_V0_TYPE,
&args, sizeof(args));
if (ret)
goto done;
mmu->type[i].type = 0;
if (args.vram) mmu->type[i].type |= NVIF_MEM_VRAM;
if (args.host) mmu->type[i].type |= NVIF_MEM_HOST;
if (args.comp) mmu->type[i].type |= NVIF_MEM_COMP;
if (args.disp) mmu->type[i].type |= NVIF_MEM_DISP;
if (args.kind ) mmu->type[i].type |= NVIF_MEM_KIND;
if (args.mappable) mmu->type[i].type |= NVIF_MEM_MAPPABLE;
if (args.coherent) mmu->type[i].type |= NVIF_MEM_COHERENT;
if (args.uncached) mmu->type[i].type |= NVIF_MEM_UNCACHED;
mmu->type[i].heap = args.heap;
}
if (mmu->kind_nr) {
struct nvif_mmu_kind_v0 *kind;
u32 argc = sizeof(*kind) + sizeof(*kind->data) * mmu->kind_nr;
if (ret = -ENOMEM, !(kind = kmalloc(argc, GFP_KERNEL)))
goto done;
kind->version = 0;
kind->count = mmu->kind_nr;
ret = nvif_object_mthd(&mmu->object, NVIF_MMU_V0_KIND,
kind, argc);
if (ret == 0)
memcpy(mmu->kind, kind->data, kind->count);
kfree(kind);
}
done:
if (ret)
nvif_mmu_fini(mmu);
return ret;
}
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