1c39f472eSBen Skeggs /* 2c39f472eSBen Skeggs * Copyright 2012 Red Hat Inc. 3c39f472eSBen Skeggs * 4c39f472eSBen Skeggs * Permission is hereby granted, free of charge, to any person obtaining a 5c39f472eSBen Skeggs * copy of this software and associated documentation files (the "Software"), 6c39f472eSBen Skeggs * to deal in the Software without restriction, including without limitation 7c39f472eSBen Skeggs * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8c39f472eSBen Skeggs * and/or sell copies of the Software, and to permit persons to whom the 9c39f472eSBen Skeggs * Software is furnished to do so, subject to the following conditions: 10c39f472eSBen Skeggs * 11c39f472eSBen Skeggs * The above copyright notice and this permission notice shall be included in 12c39f472eSBen Skeggs * all copies or substantial portions of the Software. 13c39f472eSBen Skeggs * 14c39f472eSBen Skeggs * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15c39f472eSBen Skeggs * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16c39f472eSBen Skeggs * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17c39f472eSBen Skeggs * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18c39f472eSBen Skeggs * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19c39f472eSBen Skeggs * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20c39f472eSBen Skeggs * OTHER DEALINGS IN THE SOFTWARE. 21c39f472eSBen Skeggs * 22c39f472eSBen Skeggs * Authors: Ben Skeggs 23c39f472eSBen Skeggs */ 2403c8952fSBen Skeggs #include "priv.h" 25d36a99d2SBen Skeggs #include "ram.h" 26639c308eSBen Skeggs #include "regsnv04.h" 27c39f472eSBen Skeggs 28c39f472eSBen Skeggs bool 29b1e4553cSBen Skeggs nv04_fb_memtype_valid(struct nvkm_fb *fb, u32 tile_flags) 30c39f472eSBen Skeggs { 31c39f472eSBen Skeggs if (!(tile_flags & 0xff00)) 32c39f472eSBen Skeggs return true; 33c39f472eSBen Skeggs return false; 34c39f472eSBen Skeggs } 35c39f472eSBen Skeggs 3603c8952fSBen Skeggs static void 3703c8952fSBen Skeggs nv04_fb_init(struct nvkm_fb *fb) 38c39f472eSBen Skeggs { 396758745bSBen Skeggs struct nvkm_device *device = fb->subdev.device; 40c39f472eSBen Skeggs 41c39f472eSBen Skeggs /* This is what the DDX did for NV_ARCH_04, but a mmio-trace shows 42c39f472eSBen Skeggs * nvidia reading PFB_CFG_0, then writing back its original value. 43c39f472eSBen Skeggs * (which was 0x701114 in this case) 44c39f472eSBen Skeggs */ 456758745bSBen Skeggs nvkm_wr32(device, NV04_PFB_CFG0, 0x1114); 46c39f472eSBen Skeggs } 47c39f472eSBen Skeggs 4803c8952fSBen Skeggs static const struct nvkm_fb_func 4903c8952fSBen Skeggs nv04_fb = { 5003c8952fSBen Skeggs .init = nv04_fb_init, 5103c8952fSBen Skeggs .ram_new = nv04_ram_new, 5203c8952fSBen Skeggs .memtype_valid = nv04_fb_memtype_valid, 5303c8952fSBen Skeggs }; 5403c8952fSBen Skeggs 55c39f472eSBen Skeggs int 5603c8952fSBen Skeggs nv04_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb) 57c39f472eSBen Skeggs { 5803c8952fSBen Skeggs return nvkm_fb_new_(&nv04_fb, device, index, pfb); 59c39f472eSBen Skeggs } 60