67 lines · c
1/*2 * Copyright 2017 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Ben Skeggs <bskeggs@redhat.com>23 */24#include "ram.h"25 26u3227gm200_ram_probe_fbp_amount(const struct nvkm_ram_func *func, u32 fbpao,28 struct nvkm_device *device, int fbp, int *pltcs)29{30 u32 ltcs = nvkm_rd32(device, 0x022450);31 u32 fbpas = nvkm_rd32(device, 0x022458);32 u32 fbpa = fbp * fbpas;33 u32 size = 0;34 if (!(nvkm_rd32(device, 0x021d38) & BIT(fbp))) {35 u32 ltco = nvkm_rd32(device, 0x021d70 + (fbp * 4));36 u32 ltcm = ~ltco & ((1 << ltcs) - 1);37 38 while (fbpas--) {39 if (!(fbpao & (1 << fbpa)))40 size += func->probe_fbpa_amount(device, fbpa);41 fbpa++;42 }43 44 *pltcs = hweight32(ltcm);45 }46 return size;47}48 49static const struct nvkm_ram_func50gm200_ram = {51 .upper = 0x1000000000ULL,52 .probe_fbp = gm107_ram_probe_fbp,53 .probe_fbp_amount = gm200_ram_probe_fbp_amount,54 .probe_fbpa_amount = gf100_ram_probe_fbpa_amount,55 .dtor = gk104_ram_dtor,56 .init = gk104_ram_init,57 .calc = gk104_ram_calc,58 .prog = gk104_ram_prog,59 .tidy = gk104_ram_tidy,60};61 62int63gm200_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)64{65 return gk104_ram_new_(&gm200_ram, fb, pram);66}67