/* * Copyright (C) 2010 Francisco Jerez. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial * portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * */ #include "nv04.h" #include "fbmem.h" #include <subdev/bios.h> #include <subdev/bios/init.h> static void nv20_devinit_meminit(struct nvkm_devinit *init) { struct nvkm_subdev *subdev = &init->subdev; struct nvkm_device *device = subdev->device; uint32_t mask = (device->chipset >= 0x25 ? 0x300 : 0x900); uint32_t amount, off; struct io_mapping *fb; /* Map the framebuffer aperture */ fb = fbmem_init(device); if (!fb) { nvkm_error(subdev, "failed to map fb\n"); return; } nvkm_wr32(device, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1); /* Allow full addressing */ nvkm_mask(device, NV04_PFB_CFG0, 0, mask); amount = nvkm_rd32(device, 0x10020c); for (off = amount; off > 0x2000000; off -= 0x2000000) fbmem_poke(fb, off - 4, off); amount = nvkm_rd32(device, 0x10020c); if (amount != fbmem_peek(fb, amount - 4)) /* IC missing - disable the upper half memory space. */ nvkm_mask(device, NV04_PFB_CFG0, mask, 0); fbmem_fini(fb); } static const struct nvkm_devinit_func nv20_devinit = { .dtor = nv04_devinit_dtor, .preinit = nv04_devinit_preinit, .post = nv04_devinit_post, .meminit = nv20_devinit_meminit, .pll_set = nv04_devinit_pll_set, }; int nv20_devinit_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_devinit **pinit) { return nv04_devinit_new_(&nv20_devinit, device, type, inst, pinit); }