1 /* 2 * Copyright (C) 2010 Francisco Jerez. 3 * All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining 6 * a copy of this software and associated documentation files (the 7 * "Software"), to deal in the Software without restriction, including 8 * without limitation the rights to use, copy, modify, merge, publish, 9 * distribute, sublicense, and/or sell copies of the Software, and to 10 * permit persons to whom the Software is furnished to do so, subject to 11 * the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the 14 * next paragraph) shall be included in all copies or substantial 15 * portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 * 25 */ 26 #include "nv04.h" 27 #include "fbmem.h" 28 29 #include <subdev/bios.h> 30 #include <subdev/bios/init.h> 31 32 static void 33 nv20_devinit_meminit(struct nvkm_devinit *init) 34 { 35 struct nvkm_subdev *subdev = &init->subdev; 36 struct nvkm_device *device = subdev->device; 37 uint32_t mask = (device->chipset >= 0x25 ? 0x300 : 0x900); 38 uint32_t amount, off; 39 struct io_mapping *fb; 40 41 /* Map the framebuffer aperture */ 42 fb = fbmem_init(device); 43 if (!fb) { 44 nvkm_error(subdev, "failed to map fb\n"); 45 return; 46 } 47 48 nvkm_wr32(device, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1); 49 50 /* Allow full addressing */ 51 nvkm_mask(device, NV04_PFB_CFG0, 0, mask); 52 53 amount = nvkm_rd32(device, 0x10020c); 54 for (off = amount; off > 0x2000000; off -= 0x2000000) 55 fbmem_poke(fb, off - 4, off); 56 57 amount = nvkm_rd32(device, 0x10020c); 58 if (amount != fbmem_peek(fb, amount - 4)) 59 /* IC missing - disable the upper half memory space. */ 60 nvkm_mask(device, NV04_PFB_CFG0, mask, 0); 61 62 fbmem_fini(fb); 63 } 64 65 static const struct nvkm_devinit_func 66 nv20_devinit = { 67 .dtor = nv04_devinit_dtor, 68 .preinit = nv04_devinit_preinit, 69 .post = nv04_devinit_post, 70 .meminit = nv20_devinit_meminit, 71 .pll_set = nv04_devinit_pll_set, 72 }; 73 74 int 75 nv20_devinit_new(struct nvkm_device *device, int index, 76 struct nvkm_devinit **pinit) 77 { 78 return nv04_devinit_new_(&nv20_devinit, device, index, pinit); 79 } 80