64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
/*
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* Copyright 2013 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs
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*/
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#include "priv.h"
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static int
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nv20_ram_create(struct nvkm_object *parent, struct nvkm_object *engine,
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struct nvkm_oclass *oclass, void *data, u32 size,
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struct nvkm_object **pobject)
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{
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struct nvkm_fb *fb = nvkm_fb(parent);
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struct nvkm_ram *ram;
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struct nvkm_device *device = fb->subdev.device;
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u32 pbus1218 = nvkm_rd32(device, 0x001218);
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int ret;
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ret = nvkm_ram_create(parent, engine, oclass, &ram);
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*pobject = nv_object(ram);
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if (ret)
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return ret;
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switch (pbus1218 & 0x00000300) {
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case 0x00000000: ram->type = NV_MEM_TYPE_SDRAM; break;
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case 0x00000100: ram->type = NV_MEM_TYPE_DDR1; break;
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case 0x00000200: ram->type = NV_MEM_TYPE_GDDR3; break;
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case 0x00000300: ram->type = NV_MEM_TYPE_GDDR2; break;
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}
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ram->size = (nvkm_rd32(device, 0x10020c) & 0xff000000);
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ram->parts = (nvkm_rd32(device, 0x100200) & 0x00000003) + 1;
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ram->tags = nvkm_rd32(device, 0x100320);
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return 0;
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}
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struct nvkm_oclass
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nv20_ram_oclass = {
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.handle = 0,
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.ofuncs = &(struct nvkm_ofuncs) {
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.ctor = nv20_ram_create,
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.dtor = _nvkm_ram_dtor,
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.init = _nvkm_ram_init,
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.fini = _nvkm_ram_fini,
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}
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};
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