1/* $NetBSD: nouveau_nvkm_subdev_devinit_nv05.c,v 1.3 2021/12/18 23:45:39 riastradh Exp $ */ 2 3/* 4 * Copyright (C) 2010 Francisco Jerez. 5 * All Rights Reserved. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining 8 * a copy of this software and associated documentation files (the 9 * "Software"), to deal in the Software without restriction, including 10 * without limitation the rights to use, copy, modify, merge, publish, 11 * distribute, sublicense, and/or sell copies of the Software, and to 12 * permit persons to whom the Software is furnished to do so, subject to 13 * the following conditions: 14 * 15 * The above copyright notice and this permission notice (including the 16 * next paragraph) shall be included in all copies or substantial 17 * portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 22 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 23 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 24 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 25 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 26 * 27 */ 28#include <sys/cdefs.h> 29__KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_devinit_nv05.c,v 1.3 2021/12/18 23:45:39 riastradh Exp $"); 30 31#include "nv04.h" 32#include "fbmem.h" 33 34#include <subdev/bios.h> 35#include <subdev/bios/bmp.h> 36#include <subdev/bios/init.h> 37#include <subdev/vga.h> 38 39static void 40nv05_devinit_meminit(struct nvkm_devinit *init) 41{ 42 static const u8 default_config_tab[][2] = { 43 { 0x24, 0x00 }, 44 { 0x28, 0x00 }, 45 { 0x24, 0x01 }, 46 { 0x1f, 0x00 }, 47 { 0x0f, 0x00 }, 48 { 0x17, 0x00 }, 49 { 0x06, 0x00 }, 50 { 0x00, 0x00 } 51 }; 52 struct nvkm_subdev *subdev = &init->subdev; 53 struct nvkm_device *device = subdev->device; 54 struct nvkm_bios *bios = device->bios; 55 struct io_mapping *fb; 56 u32 patt = 0xdeadbeef; 57 u16 data; 58 u8 strap, ramcfg[2]; 59 int i, v; 60 61 /* Map the framebuffer aperture */ 62 fb = fbmem_init(device); 63 if (!fb) { 64 nvkm_error(subdev, "failed to map fb\n"); 65 return; 66 } 67 68 strap = (nvkm_rd32(device, 0x101000) & 0x0000003c) >> 2; 69 if ((data = bmp_mem_init_table(bios))) { 70 ramcfg[0] = nvbios_rd08(bios, data + 2 * strap + 0); 71 ramcfg[1] = nvbios_rd08(bios, data + 2 * strap + 1); 72 } else { 73 ramcfg[0] = default_config_tab[strap][0]; 74 ramcfg[1] = default_config_tab[strap][1]; 75 } 76 77 /* Sequencer off */ 78 nvkm_wrvgas(device, 0, 1, nvkm_rdvgas(device, 0, 1) | 0x20); 79 80 if (nvkm_rd32(device, NV04_PFB_BOOT_0) & NV04_PFB_BOOT_0_UMA_ENABLE) 81 goto out; 82 83 nvkm_mask(device, NV04_PFB_DEBUG_0, NV04_PFB_DEBUG_0_REFRESH_OFF, 0); 84 85 /* If present load the hardcoded scrambling table */ 86 if (data) { 87 for (i = 0, data += 0x10; i < 8; i++, data += 4) { 88 u32 scramble = nvbios_rd32(bios, data); 89 nvkm_wr32(device, NV04_PFB_SCRAMBLE(i), scramble); 90 } 91 } 92 93 /* Set memory type/width/length defaults depending on the straps */ 94 nvkm_mask(device, NV04_PFB_BOOT_0, 0x3f, ramcfg[0]); 95 96 if (ramcfg[1] & 0x80) 97 nvkm_mask(device, NV04_PFB_CFG0, 0, NV04_PFB_CFG0_SCRAMBLE); 98 99 nvkm_mask(device, NV04_PFB_CFG1, 0x700001, (ramcfg[1] & 1) << 20); 100 nvkm_mask(device, NV04_PFB_CFG1, 0, 1); 101 102 /* Probe memory bus width */ 103 for (i = 0; i < 4; i++) 104 fbmem_poke(fb, 4 * i, patt); 105 106 if (fbmem_peek(fb, 0xc) != patt) 107 nvkm_mask(device, NV04_PFB_BOOT_0, 108 NV04_PFB_BOOT_0_RAM_WIDTH_128, 0); 109 110 /* Probe memory length */ 111 v = nvkm_rd32(device, NV04_PFB_BOOT_0) & NV04_PFB_BOOT_0_RAM_AMOUNT; 112 113 if (v == NV04_PFB_BOOT_0_RAM_AMOUNT_32MB && 114 (!fbmem_readback(fb, 0x1000000, ++patt) || 115 !fbmem_readback(fb, 0, ++patt))) 116 nvkm_mask(device, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT, 117 NV04_PFB_BOOT_0_RAM_AMOUNT_16MB); 118 119 if (v == NV04_PFB_BOOT_0_RAM_AMOUNT_16MB && 120 !fbmem_readback(fb, 0x800000, ++patt)) 121 nvkm_mask(device, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT, 122 NV04_PFB_BOOT_0_RAM_AMOUNT_8MB); 123 124 if (!fbmem_readback(fb, 0x400000, ++patt)) 125 nvkm_mask(device, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT, 126 NV04_PFB_BOOT_0_RAM_AMOUNT_4MB); 127 128out: 129 /* Sequencer on */ 130 nvkm_wrvgas(device, 0, 1, nvkm_rdvgas(device, 0, 1) & ~0x20); 131 fbmem_fini(fb); 132} 133 134static const struct nvkm_devinit_func 135nv05_devinit = { 136 .dtor = nv04_devinit_dtor, 137 .preinit = nv04_devinit_preinit, 138 .post = nv04_devinit_post, 139 .meminit = nv05_devinit_meminit, 140 .pll_set = nv04_devinit_pll_set, 141}; 142 143int 144nv05_devinit_new(struct nvkm_device *device, int index, 145 struct nvkm_devinit **pinit) 146{ 147 return nv04_devinit_new_(&nv05_devinit, device, index, pinit); 148} 149