| /* |
| * Copyright 2014 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 "priv.h" |
| |
| static int |
| nvkm_ltc_tags_alloc(struct nvkm_ltc *ltc, u32 n, struct nvkm_mm_node **pnode) |
| { |
| struct nvkm_ltc_priv *priv = (void *)ltc; |
| int ret; |
| |
| ret = nvkm_mm_head(&priv->tags, 0, 1, n, n, 1, pnode); |
| if (ret) |
| *pnode = NULL; |
| |
| return ret; |
| } |
| |
| static void |
| nvkm_ltc_tags_free(struct nvkm_ltc *ltc, struct nvkm_mm_node **pnode) |
| { |
| struct nvkm_ltc_priv *priv = (void *)ltc; |
| nvkm_mm_free(&priv->tags, pnode); |
| } |
| |
| static void |
| nvkm_ltc_tags_clear(struct nvkm_ltc *ltc, u32 first, u32 count) |
| { |
| const struct nvkm_ltc_impl *impl = (void *)nv_oclass(ltc); |
| struct nvkm_ltc_priv *priv = (void *)ltc; |
| const u32 limit = first + count - 1; |
| |
| BUG_ON((first > limit) || (limit >= priv->num_tags)); |
| |
| impl->cbc_clear(priv, first, limit); |
| impl->cbc_wait(priv); |
| } |
| |
| static int |
| nvkm_ltc_zbc_color_get(struct nvkm_ltc *ltc, int index, const u32 color[4]) |
| { |
| const struct nvkm_ltc_impl *impl = (void *)nv_oclass(ltc); |
| struct nvkm_ltc_priv *priv = (void *)ltc; |
| memcpy(priv->zbc_color[index], color, sizeof(priv->zbc_color[index])); |
| impl->zbc_clear_color(priv, index, color); |
| return index; |
| } |
| |
| static int |
| nvkm_ltc_zbc_depth_get(struct nvkm_ltc *ltc, int index, const u32 depth) |
| { |
| const struct nvkm_ltc_impl *impl = (void *)nv_oclass(ltc); |
| struct nvkm_ltc_priv *priv = (void *)ltc; |
| priv->zbc_depth[index] = depth; |
| impl->zbc_clear_depth(priv, index, depth); |
| return index; |
| } |
| |
| int |
| _nvkm_ltc_init(struct nvkm_object *object) |
| { |
| const struct nvkm_ltc_impl *impl = (void *)nv_oclass(object); |
| struct nvkm_ltc_priv *priv = (void *)object; |
| int ret, i; |
| |
| ret = nvkm_subdev_init(&priv->base.base); |
| if (ret) |
| return ret; |
| |
| for (i = priv->base.zbc_min; i <= priv->base.zbc_max; i++) { |
| impl->zbc_clear_color(priv, i, priv->zbc_color[i]); |
| impl->zbc_clear_depth(priv, i, priv->zbc_depth[i]); |
| } |
| |
| return 0; |
| } |
| |
| int |
| nvkm_ltc_create_(struct nvkm_object *parent, struct nvkm_object *engine, |
| struct nvkm_oclass *oclass, int length, void **pobject) |
| { |
| const struct nvkm_ltc_impl *impl = (void *)oclass; |
| struct nvkm_ltc_priv *priv; |
| int ret; |
| |
| ret = nvkm_subdev_create_(parent, engine, oclass, 0, "PLTCG", |
| "l2c", length, pobject); |
| priv = *pobject; |
| if (ret) |
| return ret; |
| |
| memset(priv->zbc_color, 0x00, sizeof(priv->zbc_color)); |
| memset(priv->zbc_depth, 0x00, sizeof(priv->zbc_depth)); |
| |
| priv->base.base.intr = impl->intr; |
| priv->base.tags_alloc = nvkm_ltc_tags_alloc; |
| priv->base.tags_free = nvkm_ltc_tags_free; |
| priv->base.tags_clear = nvkm_ltc_tags_clear; |
| priv->base.zbc_min = 1; /* reserve 0 for disabled */ |
| priv->base.zbc_max = min(impl->zbc, NVKM_LTC_MAX_ZBC_CNT) - 1; |
| priv->base.zbc_color_get = nvkm_ltc_zbc_color_get; |
| priv->base.zbc_depth_get = nvkm_ltc_zbc_depth_get; |
| return 0; |
| } |