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/*
* Copyright 2017 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 <bskeggs@redhat.com>
*/
#include "ram.h"
u32
gm200_ram_probe_fbp_amount(const struct nvkm_ram_func *func, u32 fbpao,
struct nvkm_device *device, int fbp, int *pltcs)
{
u32 ltcs = nvkm_rd32(device, 0x022450);
u32 fbpas = nvkm_rd32(device, 0x022458);
u32 fbpa = fbp * fbpas;
u32 size = 0;
if (!(nvkm_rd32(device, 0x021d38) & BIT(fbp))) {
u32 ltco = nvkm_rd32(device, 0x021d70 + (fbp * 4));
u32 ltcm = ~ltco & ((1 << ltcs) - 1);
while (fbpas--) {
if (!(fbpao & (1 << fbpa)))
size += func->probe_fbpa_amount(device, fbpa);
fbpa++;
}
*pltcs = hweight32(ltcm);
}
return size;
}
static const struct nvkm_ram_func
gm200_ram = {
.upper = 0x1000000000ULL,
.probe_fbp = gm107_ram_probe_fbp,
.probe_fbp_amount = gm200_ram_probe_fbp_amount,
.probe_fbpa_amount = gf100_ram_probe_fbpa_amount,
.dtor = gk104_ram_dtor,
.init = gk104_ram_init,
.calc = gk104_ram_calc,
.prog = gk104_ram_prog,
.tidy = gk104_ram_tidy,
};
int
gm200_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
{
return gk104_ram_new_(&gm200_ram, fb, pram);
}
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