123 lines
3.9 KiB
C
123 lines
3.9 KiB
C
/*
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* Copyright 2012 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 void
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gf100_ibus_intr_hub(struct nvkm_subdev *ibus, int i)
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{
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struct nvkm_device *device = ibus->device;
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u32 addr = nvkm_rd32(device, 0x122120 + (i * 0x0400));
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u32 data = nvkm_rd32(device, 0x122124 + (i * 0x0400));
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u32 stat = nvkm_rd32(device, 0x122128 + (i * 0x0400));
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nvkm_debug(ibus, "HUB%d: %06x %08x (%08x)\n", i, addr, data, stat);
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nvkm_mask(device, 0x122128 + (i * 0x0400), 0x00000200, 0x00000000);
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}
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static void
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gf100_ibus_intr_rop(struct nvkm_subdev *ibus, int i)
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{
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struct nvkm_device *device = ibus->device;
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u32 addr = nvkm_rd32(device, 0x124120 + (i * 0x0400));
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u32 data = nvkm_rd32(device, 0x124124 + (i * 0x0400));
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u32 stat = nvkm_rd32(device, 0x124128 + (i * 0x0400));
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nvkm_debug(ibus, "ROP%d: %06x %08x (%08x)\n", i, addr, data, stat);
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nvkm_mask(device, 0x124128 + (i * 0x0400), 0x00000200, 0x00000000);
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}
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static void
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gf100_ibus_intr_gpc(struct nvkm_subdev *ibus, int i)
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{
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struct nvkm_device *device = ibus->device;
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u32 addr = nvkm_rd32(device, 0x128120 + (i * 0x0400));
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u32 data = nvkm_rd32(device, 0x128124 + (i * 0x0400));
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u32 stat = nvkm_rd32(device, 0x128128 + (i * 0x0400));
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nvkm_debug(ibus, "GPC%d: %06x %08x (%08x)\n", i, addr, data, stat);
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nvkm_mask(device, 0x128128 + (i * 0x0400), 0x00000200, 0x00000000);
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}
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void
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gf100_ibus_intr(struct nvkm_subdev *ibus)
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{
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struct nvkm_device *device = ibus->device;
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u32 intr0 = nvkm_rd32(device, 0x121c58);
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u32 intr1 = nvkm_rd32(device, 0x121c5c);
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u32 hubnr = nvkm_rd32(device, 0x121c70);
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u32 ropnr = nvkm_rd32(device, 0x121c74);
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u32 gpcnr = nvkm_rd32(device, 0x121c78);
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u32 i;
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for (i = 0; (intr0 & 0x0000ff00) && i < hubnr; i++) {
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u32 stat = 0x00000100 << i;
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if (intr0 & stat) {
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gf100_ibus_intr_hub(ibus, i);
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intr0 &= ~stat;
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}
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}
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for (i = 0; (intr0 & 0xffff0000) && i < ropnr; i++) {
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u32 stat = 0x00010000 << i;
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if (intr0 & stat) {
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gf100_ibus_intr_rop(ibus, i);
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intr0 &= ~stat;
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}
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}
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for (i = 0; intr1 && i < gpcnr; i++) {
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u32 stat = 0x00000001 << i;
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if (intr1 & stat) {
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gf100_ibus_intr_gpc(ibus, i);
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intr1 &= ~stat;
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}
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}
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}
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static int
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gf100_ibus_init(struct nvkm_subdev *ibus)
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{
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struct nvkm_device *device = ibus->device;
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nvkm_mask(device, 0x122310, 0x0003ffff, 0x00000800);
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nvkm_wr32(device, 0x12232c, 0x00100064);
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nvkm_wr32(device, 0x122330, 0x00100064);
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nvkm_wr32(device, 0x122334, 0x00100064);
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nvkm_mask(device, 0x122348, 0x0003ffff, 0x00000100);
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return 0;
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}
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static const struct nvkm_subdev_func
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gf100_ibus = {
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.init = gf100_ibus_init,
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.intr = gf100_ibus_intr,
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};
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int
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gf100_ibus_new(struct nvkm_device *device, int index,
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struct nvkm_subdev **pibus)
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{
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struct nvkm_subdev *ibus;
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if (!(ibus = *pibus = kzalloc(sizeof(*ibus), GFP_KERNEL)))
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return -ENOMEM;
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nvkm_subdev_ctor(&gf100_ibus, device, index, ibus);
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return 0;
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}
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