1/* $NetBSD: nouveau_nvkm_subdev_fb_nv20.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_fb_nv20.c,v 1.3 2021/12/18 23:45:39 riastradh Exp $"); 30 31#include "priv.h" 32#include "ram.h" 33 34void 35nv20_fb_tile_init(struct nvkm_fb *fb, int i, u32 addr, u32 size, u32 pitch, 36 u32 flags, struct nvkm_fb_tile *tile) 37{ 38 tile->addr = 0x00000001 | addr; 39 tile->limit = max(1u, addr + size) - 1; 40 tile->pitch = pitch; 41 if (flags & 4) { 42 fb->func->tile.comp(fb, i, size, flags, tile); 43 tile->addr |= 2; 44 } 45} 46 47static void 48nv20_fb_tile_comp(struct nvkm_fb *fb, int i, u32 size, u32 flags, 49 struct nvkm_fb_tile *tile) 50{ 51 u32 tiles = DIV_ROUND_UP(size, 0x40); 52 u32 tags = round_up(tiles / fb->ram->parts, 0x40); 53 if (!nvkm_mm_head(&fb->tags, 0, 1, tags, tags, 1, &tile->tag)) { 54 if (!(flags & 2)) tile->zcomp = 0x00000000; /* Z16 */ 55 else tile->zcomp = 0x04000000; /* Z24S8 */ 56 tile->zcomp |= tile->tag->offset; 57 tile->zcomp |= 0x80000000; /* enable */ 58#ifdef __BIG_ENDIAN 59 tile->zcomp |= 0x08000000; 60#endif 61 } 62} 63 64void 65nv20_fb_tile_fini(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile) 66{ 67 tile->addr = 0; 68 tile->limit = 0; 69 tile->pitch = 0; 70 tile->zcomp = 0; 71 nvkm_mm_free(&fb->tags, &tile->tag); 72} 73 74void 75nv20_fb_tile_prog(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile) 76{ 77 struct nvkm_device *device = fb->subdev.device; 78 nvkm_wr32(device, 0x100244 + (i * 0x10), tile->limit); 79 nvkm_wr32(device, 0x100248 + (i * 0x10), tile->pitch); 80 nvkm_wr32(device, 0x100240 + (i * 0x10), tile->addr); 81 nvkm_rd32(device, 0x100240 + (i * 0x10)); 82 nvkm_wr32(device, 0x100300 + (i * 0x04), tile->zcomp); 83} 84 85u32 86nv20_fb_tags(struct nvkm_fb *fb) 87{ 88 const u32 tags = nvkm_rd32(fb->subdev.device, 0x100320); 89 return tags ? tags + 1 : 0; 90} 91 92static const struct nvkm_fb_func 93nv20_fb = { 94 .tags = nv20_fb_tags, 95 .tile.regions = 8, 96 .tile.init = nv20_fb_tile_init, 97 .tile.comp = nv20_fb_tile_comp, 98 .tile.fini = nv20_fb_tile_fini, 99 .tile.prog = nv20_fb_tile_prog, 100 .ram_new = nv20_ram_new, 101}; 102 103int 104nv20_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb) 105{ 106 return nvkm_fb_new_(&nv20_fb, device, index, pfb); 107} 108