1 /* 2 * Copyright 2017 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * 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 OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Ben Skeggs <bskeggs@redhat.com> 23 */ 24 #include "ram.h" 25 26 u32 27 gf108_ram_probe_fbp_amount(const struct nvkm_ram_func *func, u32 fbpao, 28 struct nvkm_device *device, int fbp, int *pltcs) 29 { 30 u32 fbpt = nvkm_rd32(device, 0x022438); 31 u32 fbpat = nvkm_rd32(device, 0x02243c); 32 u32 fbpas = fbpat / fbpt; 33 u32 fbpa = fbp * fbpas; 34 u32 size = 0; 35 while (fbpas--) { 36 if (!(fbpao & BIT(fbpa))) 37 size += func->probe_fbpa_amount(device, fbpa); 38 fbpa++; 39 } 40 *pltcs = 1; 41 return size; 42 } 43 44 static const struct nvkm_ram_func 45 gf108_ram = { 46 .upper = 0x0200000000ULL, 47 .probe_fbp = gf100_ram_probe_fbp, 48 .probe_fbp_amount = gf108_ram_probe_fbp_amount, 49 .probe_fbpa_amount = gf100_ram_probe_fbpa_amount, 50 .init = gf100_ram_init, 51 .calc = gf100_ram_calc, 52 .prog = gf100_ram_prog, 53 .tidy = gf100_ram_tidy, 54 }; 55 56 int 57 gf108_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram) 58 { 59 return gf100_ram_new_(&gf108_ram, fb, pram); 60 } 61