| /* |
| * 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 <subdev/fb.h> |
| |
| struct nv20_fb_priv { |
| struct nouveau_fb base; |
| }; |
| |
| int |
| nv20_fb_vram_init(struct nouveau_fb *pfb) |
| { |
| u32 pbus1218 = nv_rd32(pfb, 0x001218); |
| |
| switch (pbus1218 & 0x00000300) { |
| case 0x00000000: pfb->ram.type = NV_MEM_TYPE_SDRAM; break; |
| case 0x00000100: pfb->ram.type = NV_MEM_TYPE_DDR1; break; |
| case 0x00000200: pfb->ram.type = NV_MEM_TYPE_GDDR3; break; |
| case 0x00000300: pfb->ram.type = NV_MEM_TYPE_GDDR2; break; |
| } |
| pfb->ram.size = (nv_rd32(pfb, 0x10020c) & 0xff000000); |
| pfb->ram.parts = (nv_rd32(pfb, 0x100200) & 0x00000003) + 1; |
| |
| return nv_rd32(pfb, 0x100320); |
| } |
| |
| void |
| nv20_fb_tile_init(struct nouveau_fb *pfb, int i, u32 addr, u32 size, u32 pitch, |
| u32 flags, struct nouveau_fb_tile *tile) |
| { |
| tile->addr = 0x00000001 | addr; |
| tile->limit = max(1u, addr + size) - 1; |
| tile->pitch = pitch; |
| if (flags & 4) { |
| pfb->tile.comp(pfb, i, size, flags, tile); |
| tile->addr |= 2; |
| } |
| } |
| |
| static void |
| nv20_fb_tile_comp(struct nouveau_fb *pfb, int i, u32 size, u32 flags, |
| struct nouveau_fb_tile *tile) |
| { |
| u32 tiles = DIV_ROUND_UP(size, 0x40); |
| u32 tags = round_up(tiles / pfb->ram.parts, 0x40); |
| if (!nouveau_mm_head(&pfb->tags, 1, tags, tags, 1, &tile->tag)) { |
| if (!(flags & 2)) tile->zcomp = 0x00000000; /* Z16 */ |
| else tile->zcomp = 0x04000000; /* Z24S8 */ |
| tile->zcomp |= tile->tag->offset; |
| tile->zcomp |= 0x80000000; /* enable */ |
| #ifdef __BIG_ENDIAN |
| tile->zcomp |= 0x08000000; |
| #endif |
| } |
| } |
| |
| void |
| nv20_fb_tile_fini(struct nouveau_fb *pfb, int i, struct nouveau_fb_tile *tile) |
| { |
| tile->addr = 0; |
| tile->limit = 0; |
| tile->pitch = 0; |
| tile->zcomp = 0; |
| nouveau_mm_free(&pfb->tags, &tile->tag); |
| } |
| |
| void |
| nv20_fb_tile_prog(struct nouveau_fb *pfb, int i, struct nouveau_fb_tile *tile) |
| { |
| nv_wr32(pfb, 0x100244 + (i * 0x10), tile->limit); |
| nv_wr32(pfb, 0x100248 + (i * 0x10), tile->pitch); |
| nv_wr32(pfb, 0x100240 + (i * 0x10), tile->addr); |
| nv_rd32(pfb, 0x100240 + (i * 0x10)); |
| nv_wr32(pfb, 0x100300 + (i * 0x04), tile->zcomp); |
| } |
| |
| static int |
| nv20_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine, |
| struct nouveau_oclass *oclass, void *data, u32 size, |
| struct nouveau_object **pobject) |
| { |
| struct nv20_fb_priv *priv; |
| int ret; |
| |
| ret = nouveau_fb_create(parent, engine, oclass, &priv); |
| *pobject = nv_object(priv); |
| if (ret) |
| return ret; |
| |
| priv->base.memtype_valid = nv04_fb_memtype_valid; |
| priv->base.ram.init = nv20_fb_vram_init; |
| priv->base.tile.regions = 8; |
| priv->base.tile.init = nv20_fb_tile_init; |
| priv->base.tile.comp = nv20_fb_tile_comp; |
| priv->base.tile.fini = nv20_fb_tile_fini; |
| priv->base.tile.prog = nv20_fb_tile_prog; |
| return nouveau_fb_preinit(&priv->base); |
| } |
| |
| struct nouveau_oclass |
| nv20_fb_oclass = { |
| .handle = NV_SUBDEV(FB, 0x20), |
| .ofuncs = &(struct nouveau_ofuncs) { |
| .ctor = nv20_fb_ctor, |
| .dtor = _nouveau_fb_dtor, |
| .init = _nouveau_fb_init, |
| .fini = _nouveau_fb_fini, |
| }, |
| }; |