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/*
* Copyright 2018 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 <subdev/timer.h>
static void
tu102_vmm_flush(struct nvkm_vmm *vmm, int depth)
{
struct nvkm_device *device = vmm->mmu->subdev.device;
u32 type = (5 /* CACHE_LEVEL_UP_TO_PDE3 */ - depth) << 24;
type |= 0x00000001; /* PAGE_ALL */
if (atomic_read(&vmm->engref[NVKM_SUBDEV_BAR]))
type |= 0x00000004; /* HUB_ONLY */
mutex_lock(&vmm->mmu->mutex);
nvkm_wr32(device, 0xb830a0, vmm->pd->pt[0]->addr >> 8);
nvkm_wr32(device, 0xb830a4, 0x00000000);
nvkm_wr32(device, 0x100e68, 0x00000000);
nvkm_wr32(device, 0xb830b0, 0x80000000 | type);
nvkm_msec(device, 2000,
if (!(nvkm_rd32(device, 0xb830b0) & 0x80000000))
break;
);
mutex_unlock(&vmm->mmu->mutex);
}
static const struct nvkm_vmm_func
tu102_vmm = {
.join = gv100_vmm_join,
.part = gf100_vmm_part,
.aper = gf100_vmm_aper,
.valid = gp100_vmm_valid,
.flush = tu102_vmm_flush,
.mthd = gp100_vmm_mthd,
.page = {
{ 47, &gp100_vmm_desc_16[4], NVKM_VMM_PAGE_Sxxx },
{ 38, &gp100_vmm_desc_16[3], NVKM_VMM_PAGE_Sxxx },
{ 29, &gp100_vmm_desc_16[2], NVKM_VMM_PAGE_Sxxx },
{ 21, &gp100_vmm_desc_16[1], NVKM_VMM_PAGE_SVxC },
{ 16, &gp100_vmm_desc_16[0], NVKM_VMM_PAGE_SVxC },
{ 12, &gp100_vmm_desc_12[0], NVKM_VMM_PAGE_SVHx },
{}
}
};
int
tu102_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 gp100_vmm_new_(&tu102_vmm, mmu, managed, addr, size,
argv, argc, key, name, pvmm);
}
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