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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 "nv50.h"
struct mcp77_ram {
struct nvkm_ram base;
u64 poller_base;
};
static int
mcp77_ram_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
struct nvkm_oclass *oclass, void *data, u32 datasize,
struct nvkm_object **pobject)
{
u32 rsvd_head = ( 256 * 1024); /* vga memory */
u32 rsvd_tail = (1024 * 1024); /* vbios etc */
struct nvkm_fb *fb = nvkm_fb(parent);
struct nvkm_device *device = fb->subdev.device;
struct mcp77_ram *ram;
int ret;
ret = nvkm_ram_create(parent, engine, oclass, &ram);
*pobject = nv_object(fb);
if (ret)
return ret;
ram->base.type = NV_MEM_TYPE_STOLEN;
ram->base.stolen = (u64)nvkm_rd32(device, 0x100e10) << 12;
ram->base.size = (u64)nvkm_rd32(device, 0x100e14) << 12;
rsvd_tail += 0x1000;
ram->poller_base = ram->base.size - rsvd_tail;
ret = nvkm_mm_init(&fb->vram, rsvd_head >> 12,
(ram->base.size - (rsvd_head + rsvd_tail)) >> 12,
1);
if (ret)
return ret;
ram->base.get = nv50_ram_get;
ram->base.put = nv50_ram_put;
return 0;
}
static int
mcp77_ram_init(struct nvkm_object *object)
{
struct nvkm_fb *fb = nvkm_fb(object);
struct nvkm_device *device = fb->subdev.device;
struct mcp77_ram *ram = (void *)object;
int ret;
u64 dniso, hostnb, flush;
ret = nvkm_ram_init(&ram->base);
if (ret)
return ret;
dniso = ((ram->base.size - (ram->poller_base + 0x00)) >> 5) - 1;
hostnb = ((ram->base.size - (ram->poller_base + 0x20)) >> 5) - 1;
flush = ((ram->base.size - (ram->poller_base + 0x40)) >> 5) - 1;
/* Enable NISO poller for various clients and set their associated
* read address, only for MCP77/78 and MCP79/7A. (fd#25701)
*/
nvkm_wr32(device, 0x100c18, dniso);
nvkm_mask(device, 0x100c14, 0x00000000, 0x00000001);
nvkm_wr32(device, 0x100c1c, hostnb);
nvkm_mask(device, 0x100c14, 0x00000000, 0x00000002);
nvkm_wr32(device, 0x100c24, flush);
nvkm_mask(device, 0x100c14, 0x00000000, 0x00010000);
return 0;
}
struct nvkm_oclass
mcp77_ram_oclass = {
.ofuncs = &(struct nvkm_ofuncs) {
.ctor = mcp77_ram_ctor,
.dtor = _nvkm_ram_dtor,
.init = mcp77_ram_init,
.fini = _nvkm_ram_fini,
},
};
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