diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/fb/nv44.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/fb/nv44.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/nv44.c b/drivers/gpu/drm/nouveau/core/subdev/fb/nv44.c new file mode 100644 index 000000000000..ae89b5006f7a --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/nv44.c @@ -0,0 +1,114 @@ +/* + * 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 nv44_fb_priv { + struct nouveau_fb base; +}; + +int +nv44_fb_vram_init(struct nouveau_fb *pfb) +{ + u32 pfb474 = nv_rd32(pfb, 0x100474); + if (pfb474 & 0x00000004) + pfb->ram.type = NV_MEM_TYPE_GDDR3; + if (pfb474 & 0x00000002) + pfb->ram.type = NV_MEM_TYPE_DDR2; + if (pfb474 & 0x00000001) + pfb->ram.type = NV_MEM_TYPE_DDR1; + + pfb->ram.size = nv_rd32(pfb, 0x10020c) & 0xff000000; + return 0; +} + +static void +nv44_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; /* mode = vram */ + tile->addr |= addr; + tile->limit = max(1u, addr + size) - 1; + tile->pitch = pitch; +} + +void +nv44_fb_tile_prog(struct nouveau_fb *pfb, int i, struct nouveau_fb_tile *tile) +{ + nv_wr32(pfb, 0x100604 + (i * 0x10), tile->limit); + nv_wr32(pfb, 0x100608 + (i * 0x10), tile->pitch); + nv_wr32(pfb, 0x100600 + (i * 0x10), tile->addr); + nv_rd32(pfb, 0x100600 + (i * 0x10)); +} + +int +nv44_fb_init(struct nouveau_object *object) +{ + struct nv44_fb_priv *priv = (void *)object; + int ret; + + ret = nouveau_fb_init(&priv->base); + if (ret) + return ret; + + nv_wr32(priv, 0x100850, 0x80000000); + nv_wr32(priv, 0x100800, 0x00000001); + return 0; +} + +static int +nv44_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine, + struct nouveau_oclass *oclass, void *data, u32 size, + struct nouveau_object **pobject) +{ + struct nv44_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 = nv44_fb_vram_init; + priv->base.tile.regions = 12; + priv->base.tile.init = nv44_fb_tile_init; + priv->base.tile.fini = nv20_fb_tile_fini; + priv->base.tile.prog = nv44_fb_tile_prog; + return nouveau_fb_preinit(&priv->base); +} + + +struct nouveau_oclass +nv44_fb_oclass = { + .handle = NV_SUBDEV(FB, 0x44), + .ofuncs = &(struct nouveau_ofuncs) { + .ctor = nv44_fb_ctor, + .dtor = _nouveau_fb_dtor, + .init = nv44_fb_init, + .fini = _nouveau_fb_fini, + }, +}; |