/*
 * 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/fb.h>
#include <subdev/ltc.h>

#include <nvif/ifc00d.h>
#include <nvif/unpack.h>

int
gv100_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
{
        u64 data[2], mask;
        int ret = gp100_vmm_join(vmm, inst), i;
        if (ret)
                return ret;

        nvkm_kmap(inst);
        data[0] = nvkm_ro32(inst, 0x200);
        data[1] = nvkm_ro32(inst, 0x204);
        mask = BIT_ULL(0);

        nvkm_wo32(inst, 0x21c, 0x00000000);

        for (i = 0; i < 64; i++) {
                if (mask & BIT_ULL(i)) {
                        nvkm_wo32(inst, 0x2a4 + (i * 0x10), data[1]);
                        nvkm_wo32(inst, 0x2a0 + (i * 0x10), data[0]);
                } else {
                        nvkm_wo32(inst, 0x2a4 + (i * 0x10), 0x00000001);
                        nvkm_wo32(inst, 0x2a0 + (i * 0x10), 0x00000001);
                }
                nvkm_wo32(inst, 0x2a8 + (i * 0x10), 0x00000000);
        }

        nvkm_wo32(inst, 0x298, lower_32_bits(mask));
        nvkm_wo32(inst, 0x29c, upper_32_bits(mask));
        nvkm_done(inst);
        return 0;
}

static const struct nvkm_vmm_func
gv100_vmm = {
        .join = gv100_vmm_join,
        .part = gf100_vmm_part,
        .aper = gf100_vmm_aper,
        .valid = gp100_vmm_valid,
        .flush = gp100_vmm_flush,
        .mthd = gp100_vmm_mthd,
        .invalidate_pdb = gp100_vmm_invalidate_pdb,
        .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
gv100_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_(&gv100_vmm, mmu, managed, addr, size,
                              argv, argc, key, name, pvmm);
}