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/*
* Copyright 2013 Red Hat Inc.
*
* 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 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 HOLDER(S) OR AUTHOR(S) 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.
*
* Authors: Ben Skeggs
*/
#include "priv.h"
#include "regsnv04.h"
static int
nv04_ram_create(struct nvkm_object *parent, struct nvkm_object *engine,
struct nvkm_oclass *oclass, void *data, u32 size,
struct nvkm_object **pobject)
{
struct nvkm_fb *pfb = nvkm_fb(parent);
struct nvkm_ram *ram;
u32 boot0 = nv_rd32(pfb, NV04_PFB_BOOT_0);
int ret;
ret = nvkm_ram_create(parent, engine, oclass, &ram);
*pobject = nv_object(ram);
if (ret)
return ret;
if (boot0 & 0x00000100) {
ram->size = ((boot0 >> 12) & 0xf) * 2 + 2;
ram->size *= 1024 * 1024;
} else {
switch (boot0 & NV04_PFB_BOOT_0_RAM_AMOUNT) {
case NV04_PFB_BOOT_0_RAM_AMOUNT_32MB:
ram->size = 32 * 1024 * 1024;
break;
case NV04_PFB_BOOT_0_RAM_AMOUNT_16MB:
ram->size = 16 * 1024 * 1024;
break;
case NV04_PFB_BOOT_0_RAM_AMOUNT_8MB:
ram->size = 8 * 1024 * 1024;
break;
case NV04_PFB_BOOT_0_RAM_AMOUNT_4MB:
ram->size = 4 * 1024 * 1024;
break;
}
}
if ((boot0 & 0x00000038) <= 0x10)
ram->type = NV_MEM_TYPE_SGRAM;
else
ram->type = NV_MEM_TYPE_SDRAM;
return 0;
}
struct nvkm_oclass
nv04_ram_oclass = {
.handle = 0,
.ofuncs = &(struct nvkm_ofuncs) {
.ctor = nv04_ram_create,
.dtor = _nvkm_ram_dtor,
.init = _nvkm_ram_init,
.fini = _nvkm_ram_fini,
}
};
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