1 /* 2 * Copyright 2012 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 23 */ 24 #include "priv.h" 25 #include "ram.h" 26 #include "regsnv04.h" 27 28 bool 29 nv04_fb_memtype_valid(struct nvkm_fb *fb, u32 tile_flags) 30 { 31 if (!(tile_flags & 0xff00)) 32 return true; 33 return false; 34 } 35 36 static void 37 nv04_fb_init(struct nvkm_fb *fb) 38 { 39 struct nvkm_device *device = fb->subdev.device; 40 41 /* This is what the DDX did for NV_ARCH_04, but a mmio-trace shows 42 * nvidia reading PFB_CFG_0, then writing back its original value. 43 * (which was 0x701114 in this case) 44 */ 45 nvkm_wr32(device, NV04_PFB_CFG0, 0x1114); 46 } 47 48 static const struct nvkm_fb_func 49 nv04_fb = { 50 .init = nv04_fb_init, 51 .ram_new = nv04_ram_new, 52 .memtype_valid = nv04_fb_memtype_valid, 53 }; 54 55 int 56 nv04_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb) 57 { 58 return nvkm_fb_new_(&nv04_fb, device, index, pfb); 59 } 60