diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv20.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv20.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv20.c b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv20.c new file mode 100644 index 000000000000..02fcfd921c42 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv20.c @@ -0,0 +1,77 @@ +/* + * 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 "nv04.h" +#include "fbmem.h" + +#include <subdev/bios.h> +#include <subdev/bios/init.h> + +static void +nv20_devinit_meminit(struct nvkm_devinit *devinit) +{ + struct nv04_devinit_priv *priv = (void *)devinit; + struct nvkm_device *device = nv_device(priv); + uint32_t mask = (device->chipset >= 0x25 ? 0x300 : 0x900); + uint32_t amount, off; + struct io_mapping *fb; + + /* Map the framebuffer aperture */ + fb = fbmem_init(nv_device(priv)); + if (!fb) { + nv_error(priv, "failed to map fb\n"); + return; + } + + nv_wr32(priv, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1); + + /* Allow full addressing */ + nv_mask(priv, NV04_PFB_CFG0, 0, mask); + + amount = nv_rd32(priv, 0x10020c); + for (off = amount; off > 0x2000000; off -= 0x2000000) + fbmem_poke(fb, off - 4, off); + + amount = nv_rd32(priv, 0x10020c); + if (amount != fbmem_peek(fb, amount - 4)) + /* IC missing - disable the upper half memory space. */ + nv_mask(priv, NV04_PFB_CFG0, mask, 0); + + fbmem_fini(fb); +} + +struct nvkm_oclass * +nv20_devinit_oclass = &(struct nvkm_devinit_impl) { + .base.handle = NV_SUBDEV(DEVINIT, 0x20), + .base.ofuncs = &(struct nvkm_ofuncs) { + .ctor = nv04_devinit_ctor, + .dtor = nv04_devinit_dtor, + .init = nv04_devinit_init, + .fini = nv04_devinit_fini, + }, + .meminit = nv20_devinit_meminit, + .pll_set = nv04_devinit_pll_set, + .post = nvbios_init, +}.base; |