/*
* 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_dtor(struct nvif_mmu *mmu)
{
if (!nvif_object_constructed(&mmu->object))
return ;
kfree(mmu->kind);
kfree(mmu->type);
kfree(mmu->heap);
nvif_object_dtor(&mmu->object);
}
int
nvif_mmu_ctor(struct nvif_object *parent, const char *name, 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_ctor(parent, name ? name : "nvifMmu" , 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;
size_t argc = struct_size(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);
mmu->kind_inv = kind->kind_inv;
kfree(kind);
}
done:
if (ret)
nvif_mmu_dtor(mmu);
return ret;
}
Messung V0.5 in Prozent C=100 H=66 G=84
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-10-04)
¤
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