/*
* Copyright 2023 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 <nvrm/nvtypes.h>
#include <nvrm/535.113.01/common/sdk/nvidia/inc/class/cl90f1.h>
#include <nvrm/535.113.01/common/sdk/nvidia/inc/ctrl/ctrl90f1.h>
#include <nvrm/535.113.01/common/sdk/nvidia/inc/nvos.h>
static int
r535_mmu_promote_vmm(struct nvkm_vmm *vmm)
{
NV_VASPACE_ALLOCATION_PARAMETERS *args;
int ret;
ret = nvkm_gsp_client_device_ctor(vmm->mmu->subdev.device->gsp,
&vmm->rm.client, &vmm->rm.device);
if (ret)
return ret;
args = nvkm_gsp_rm_alloc_get(&vmm->rm.device.object, 0x90f10000, FERMI_VASPACE_A,
sizeof(*args), &vmm->rm.object);
if (IS_ERR(args))
return PTR_ERR(args);
args->index = NV_VASPACE_ALLOCATION_INDEX_GPU_NEW;
ret = nvkm_gsp_rm_alloc_wr(&vmm->rm.object, args);
if (ret)
return ret;
{
NV90F1_CTRL_VASPACE_COPY_SERVER_RESERVED_PDES_PARAMS *ctrl;
mutex_lock(&vmm->mutex.vmm);
ret = nvkm_vmm_get_locked(vmm, true, false, false, 0x1d, 32, 0x20000000,
&vmm->rm.rsvd);
mutex_unlock(&vmm->mutex.vmm);
if (ret)
return ret;
ctrl = nvkm_gsp_rm_ctrl_get(&vmm->rm.object,
NV90F1_CTRL_CMD_VASPACE_COPY_SERVER_RESERVED_PDES,
sizeof(*ctrl));
if (IS_ERR(ctrl))
return PTR_ERR(ctrl);
ctrl->pageSize = 0x20000000;
ctrl->virtAddrLo = vmm->rm.rsvd->addr;
ctrl->virtAddrHi = vmm->rm.rsvd->addr + vmm->rm.rsvd->size - 1;
ctrl->numLevelsToCopy = vmm->pd->pde[0]->pde[0] ? 3 : 2;
ctrl->levels[0].physAddress = vmm->pd->pt[0]->addr;
ctrl->levels[0].size = 0x20;
ctrl->levels[0].aperture = 1;
ctrl->levels[0].pageShift = 0x2f;
ctrl->levels[1].physAddress = vmm->pd->pde[0]->pt[0]->addr;
ctrl->levels[1].size = 0x1000;
ctrl->levels[1].aperture = 1;
ctrl->levels[1].pageShift = 0x26;
if (vmm->pd->pde[0]->pde[0]) {
ctrl->levels[2].physAddress = vmm->pd->pde[0]->pde[0]->pt[0]->addr;
ctrl->levels[2].size = 0x1000;
ctrl->levels[2].aperture = 1;
ctrl->levels[2].pageShift = 0x1d;
}
ret = nvkm_gsp_rm_ctrl_wr(&vmm->rm.object, ctrl);
}
return ret;
}
static void
r535_mmu_dtor(struct nvkm_mmu *mmu)
{
kfree(mmu->func);
}
int
r535_mmu_new(const struct nvkm_mmu_func *hw,
struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
struct nvkm_mmu **pmmu)
{
struct nvkm_mmu_func *rm;
int ret;
if (!(rm = kzalloc(sizeof(*rm), GFP_KERNEL)))
return -ENOMEM;
rm->dtor = r535_mmu_dtor;
rm->dma_bits = hw->dma_bits;
rm->mmu = hw->mmu;
rm->mem = hw->mem;
rm->vmm = hw->vmm;
rm->kind = hw->kind;
rm->kind_sys = hw->kind_sys;
rm->promote_vmm = r535_mmu_promote_vmm;
ret = nvkm_mmu_new_(rm, device, type, inst, pmmu);
if (ret)
kfree(rm);
return ret;
}
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