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/*
* Copyright 2012 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 <subdev/ibus.h>
static void
gf100_ibus_intr_hub(struct nvkm_ibus *ibus, int i)
{
u32 addr = nv_rd32(ibus, 0x122120 + (i * 0x0400));
u32 data = nv_rd32(ibus, 0x122124 + (i * 0x0400));
u32 stat = nv_rd32(ibus, 0x122128 + (i * 0x0400));
nv_error(ibus, "HUB%d: 0x%06x 0x%08x (0x%08x)\n", i, addr, data, stat);
nv_mask(ibus, 0x122128 + (i * 0x0400), 0x00000200, 0x00000000);
}
static void
gf100_ibus_intr_rop(struct nvkm_ibus *ibus, int i)
{
u32 addr = nv_rd32(ibus, 0x124120 + (i * 0x0400));
u32 data = nv_rd32(ibus, 0x124124 + (i * 0x0400));
u32 stat = nv_rd32(ibus, 0x124128 + (i * 0x0400));
nv_error(ibus, "ROP%d: 0x%06x 0x%08x (0x%08x)\n", i, addr, data, stat);
nv_mask(ibus, 0x124128 + (i * 0x0400), 0x00000200, 0x00000000);
}
static void
gf100_ibus_intr_gpc(struct nvkm_ibus *ibus, int i)
{
u32 addr = nv_rd32(ibus, 0x128120 + (i * 0x0400));
u32 data = nv_rd32(ibus, 0x128124 + (i * 0x0400));
u32 stat = nv_rd32(ibus, 0x128128 + (i * 0x0400));
nv_error(ibus, "GPC%d: 0x%06x 0x%08x (0x%08x)\n", i, addr, data, stat);
nv_mask(ibus, 0x128128 + (i * 0x0400), 0x00000200, 0x00000000);
}
static void
gf100_ibus_intr(struct nvkm_subdev *subdev)
{
struct nvkm_ibus *ibus = (void *)subdev;
u32 intr0 = nv_rd32(ibus, 0x121c58);
u32 intr1 = nv_rd32(ibus, 0x121c5c);
u32 hubnr = nv_rd32(ibus, 0x121c70);
u32 ropnr = nv_rd32(ibus, 0x121c74);
u32 gpcnr = nv_rd32(ibus, 0x121c78);
u32 i;
for (i = 0; (intr0 & 0x0000ff00) && i < hubnr; i++) {
u32 stat = 0x00000100 << i;
if (intr0 & stat) {
gf100_ibus_intr_hub(ibus, i);
intr0 &= ~stat;
}
}
for (i = 0; (intr0 & 0xffff0000) && i < ropnr; i++) {
u32 stat = 0x00010000 << i;
if (intr0 & stat) {
gf100_ibus_intr_rop(ibus, i);
intr0 &= ~stat;
}
}
for (i = 0; intr1 && i < gpcnr; i++) {
u32 stat = 0x00000001 << i;
if (intr1 & stat) {
gf100_ibus_intr_gpc(ibus, i);
intr1 &= ~stat;
}
}
}
static int
gf100_ibus_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
struct nvkm_oclass *oclass, void *data, u32 size,
struct nvkm_object **pobject)
{
struct nvkm_ibus *ibus;
int ret;
ret = nvkm_ibus_create(parent, engine, oclass, &ibus);
*pobject = nv_object(ibus);
if (ret)
return ret;
nv_subdev(ibus)->intr = gf100_ibus_intr;
return 0;
}
struct nvkm_oclass
gf100_ibus_oclass = {
.handle = NV_SUBDEV(IBUS, 0xc0),
.ofuncs = &(struct nvkm_ofuncs) {
.ctor = gf100_ibus_ctor,
.dtor = _nvkm_ibus_dtor,
.init = _nvkm_ibus_init,
.fini = _nvkm_ibus_fini,
},
};
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