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1/*2 * Copyright 2014 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Ben Skeggs23 */24#include "priv.h"25 26#include <subdev/fb.h>27#include <subdev/timer.h>28 29void30gm107_ltc_cbc_clear(struct nvkm_ltc *ltc, u32 start, u32 limit)31{32 struct nvkm_device *device = ltc->subdev.device;33 nvkm_wr32(device, 0x17e270, start);34 nvkm_wr32(device, 0x17e274, limit);35 nvkm_mask(device, 0x17e26c, 0x00000000, 0x00000004);36}37 38void39gm107_ltc_cbc_wait(struct nvkm_ltc *ltc)40{41 struct nvkm_device *device = ltc->subdev.device;42 int c, s;43 for (c = 0; c < ltc->ltc_nr; c++) {44 for (s = 0; s < ltc->lts_nr; s++) {45 const u32 addr = 0x14046c + (c * 0x2000) + (s * 0x200);46 nvkm_wait_msec(device, 2000, addr,47 0x00000004, 0x00000000);48 }49 }50}51 52void53gm107_ltc_zbc_clear_color(struct nvkm_ltc *ltc, int i, const u32 color[4])54{55 struct nvkm_device *device = ltc->subdev.device;56 nvkm_mask(device, 0x17e338, 0x0000000f, i);57 nvkm_wr32(device, 0x17e33c, color[0]);58 nvkm_wr32(device, 0x17e340, color[1]);59 nvkm_wr32(device, 0x17e344, color[2]);60 nvkm_wr32(device, 0x17e348, color[3]);61}62 63void64gm107_ltc_zbc_clear_depth(struct nvkm_ltc *ltc, int i, const u32 depth)65{66 struct nvkm_device *device = ltc->subdev.device;67 nvkm_mask(device, 0x17e338, 0x0000000f, i);68 nvkm_wr32(device, 0x17e34c, depth);69}70 71void72gm107_ltc_intr_lts(struct nvkm_ltc *ltc, int c, int s)73{74 struct nvkm_subdev *subdev = <c->subdev;75 struct nvkm_device *device = subdev->device;76 u32 base = 0x140400 + (c * 0x2000) + (s * 0x200);77 u32 intr = nvkm_rd32(device, base + 0x00c);78 u16 stat = intr & 0x0000ffff;79 char msg[128];80 81 if (stat) {82 nvkm_snprintbf(msg, sizeof(msg), gf100_ltc_lts_intr_name, stat);83 nvkm_error(subdev, "LTC%d_LTS%d: %08x [%s]\n", c, s, intr, msg);84 }85 86 nvkm_wr32(device, base + 0x00c, intr);87}88 89void90gm107_ltc_intr(struct nvkm_ltc *ltc)91{92 struct nvkm_device *device = ltc->subdev.device;93 u32 mask;94 95 mask = nvkm_rd32(device, 0x00017c);96 while (mask) {97 u32 s, c = __ffs(mask);98 for (s = 0; s < ltc->lts_nr; s++)99 gm107_ltc_intr_lts(ltc, c, s);100 mask &= ~(1 << c);101 }102}103 104static int105gm107_ltc_oneinit(struct nvkm_ltc *ltc)106{107 struct nvkm_device *device = ltc->subdev.device;108 const u32 parts = nvkm_rd32(device, 0x022438);109 const u32 mask = nvkm_rd32(device, 0x021c14);110 const u32 slice = nvkm_rd32(device, 0x17e280) >> 28;111 int i;112 113 for (i = 0; i < parts; i++) {114 if (!(mask & (1 << i)))115 ltc->ltc_nr++;116 }117 ltc->lts_nr = slice;118 119 return gf100_ltc_oneinit_tag_ram(ltc);120}121 122static void123gm107_ltc_init(struct nvkm_ltc *ltc)124{125 struct nvkm_device *device = ltc->subdev.device;126 u32 lpg128 = !(nvkm_rd32(device, 0x100c80) & 0x00000001);127 128 nvkm_wr32(device, 0x17e27c, ltc->ltc_nr);129 nvkm_wr32(device, 0x17e278, ltc->tag_base);130 nvkm_mask(device, 0x17e264, 0x00000002, lpg128 ? 0x00000002 : 0x00000000);131}132 133static const struct nvkm_ltc_func134gm107_ltc = {135 .oneinit = gm107_ltc_oneinit,136 .init = gm107_ltc_init,137 .intr = gm107_ltc_intr,138 .cbc_clear = gm107_ltc_cbc_clear,139 .cbc_wait = gm107_ltc_cbc_wait,140 .zbc_color = 16,141 .zbc_depth = 16,142 .zbc_clear_color = gm107_ltc_zbc_clear_color,143 .zbc_clear_depth = gm107_ltc_zbc_clear_depth,144 .invalidate = gf100_ltc_invalidate,145 .flush = gf100_ltc_flush,146};147 148int149gm107_ltc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,150 struct nvkm_ltc **pltc)151{152 return nvkm_ltc_new_(&gm107_ltc, device, type, inst, pltc);153}154