/*
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* Copyright 2017 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs <bskeggs@redhat.com>
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*/
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#include "ram.h"
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u32
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gm200_ram_probe_fbp_amount(const struct nvkm_ram_func *func, u32 fbpao,
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struct nvkm_device *device, int fbp, int *pltcs)
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{
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u32 ltcs = nvkm_rd32(device, 0x022450);
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u32 fbpas = nvkm_rd32(device, 0x022458);
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u32 fbpa = fbp * fbpas;
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u32 size = 0;
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if (!(nvkm_rd32(device, 0x021d38) & BIT(fbp))) {
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u32 ltco = nvkm_rd32(device, 0x021d70 + (fbp * 4));
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u32 ltcm = ~ltco & ((1 << ltcs) - 1);
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while (fbpas--) {
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if (!(fbpao & (1 << fbpa)))
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size += func->probe_fbpa_amount(device, fbpa);
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fbpa++;
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}
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*pltcs = hweight32(ltcm);
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}
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return size;
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}
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static const struct nvkm_ram_func
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gm200_ram = {
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.upper = 0x1000000000,
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.probe_fbp = gm107_ram_probe_fbp,
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.probe_fbp_amount = gm200_ram_probe_fbp_amount,
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.probe_fbpa_amount = gf100_ram_probe_fbpa_amount,
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.dtor = gk104_ram_dtor,
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.init = gk104_ram_init,
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.calc = gk104_ram_calc,
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.prog = gk104_ram_prog,
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.tidy = gk104_ram_tidy,
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};
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int
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gm200_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
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{
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return gk104_ram_new_(&gm200_ram, fb, pram);
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}
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