diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c new file mode 100644 index 000000000..fa683c190 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c @@ -0,0 +1,143 @@ +/* + * 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" + +#include <core/memory.h> + +void +nvkm_ltc_tags_clear(struct nvkm_device *device, u32 first, u32 count) +{ + struct nvkm_ltc *ltc = device->ltc; + const u32 limit = first + count - 1; + + BUG_ON((first > limit) || (limit >= ltc->num_tags)); + + mutex_lock(<c->mutex); + ltc->func->cbc_clear(ltc, first, limit); + ltc->func->cbc_wait(ltc); + mutex_unlock(<c->mutex); +} + +int +nvkm_ltc_zbc_color_get(struct nvkm_ltc *ltc, int index, const u32 color[4]) +{ + memcpy(ltc->zbc_color[index], color, sizeof(ltc->zbc_color[index])); + ltc->func->zbc_clear_color(ltc, index, color); + return index; +} + +int +nvkm_ltc_zbc_depth_get(struct nvkm_ltc *ltc, int index, const u32 depth) +{ + ltc->zbc_depth[index] = depth; + ltc->func->zbc_clear_depth(ltc, index, depth); + return index; +} + +int +nvkm_ltc_zbc_stencil_get(struct nvkm_ltc *ltc, int index, const u32 stencil) +{ + ltc->zbc_stencil[index] = stencil; + ltc->func->zbc_clear_stencil(ltc, index, stencil); + return index; +} + +void +nvkm_ltc_invalidate(struct nvkm_ltc *ltc) +{ + if (ltc->func->invalidate) + ltc->func->invalidate(ltc); +} + +void +nvkm_ltc_flush(struct nvkm_ltc *ltc) +{ + if (ltc->func->flush) + ltc->func->flush(ltc); +} + +static void +nvkm_ltc_intr(struct nvkm_subdev *subdev) +{ + struct nvkm_ltc *ltc = nvkm_ltc(subdev); + ltc->func->intr(ltc); +} + +static int +nvkm_ltc_oneinit(struct nvkm_subdev *subdev) +{ + struct nvkm_ltc *ltc = nvkm_ltc(subdev); + return ltc->func->oneinit(ltc); +} + +static int +nvkm_ltc_init(struct nvkm_subdev *subdev) +{ + struct nvkm_ltc *ltc = nvkm_ltc(subdev); + int i; + + for (i = ltc->zbc_min; i <= ltc->zbc_max; i++) { + ltc->func->zbc_clear_color(ltc, i, ltc->zbc_color[i]); + ltc->func->zbc_clear_depth(ltc, i, ltc->zbc_depth[i]); + if (ltc->func->zbc_clear_stencil) + ltc->func->zbc_clear_stencil(ltc, i, ltc->zbc_stencil[i]); + } + + ltc->func->init(ltc); + return 0; +} + +static void * +nvkm_ltc_dtor(struct nvkm_subdev *subdev) +{ + struct nvkm_ltc *ltc = nvkm_ltc(subdev); + nvkm_memory_unref(<c->tag_ram); + mutex_destroy(<c->mutex); + return ltc; +} + +static const struct nvkm_subdev_func +nvkm_ltc = { + .dtor = nvkm_ltc_dtor, + .oneinit = nvkm_ltc_oneinit, + .init = nvkm_ltc_init, + .intr = nvkm_ltc_intr, +}; + +int +nvkm_ltc_new_(const struct nvkm_ltc_func *func, struct nvkm_device *device, + enum nvkm_subdev_type type, int inst, struct nvkm_ltc **pltc) +{ + struct nvkm_ltc *ltc; + + if (!(ltc = *pltc = kzalloc(sizeof(*ltc), GFP_KERNEL))) + return -ENOMEM; + + nvkm_subdev_ctor(&nvkm_ltc, device, type, inst, <c->subdev); + ltc->func = func; + mutex_init(<c->mutex); + ltc->zbc_min = 1; /* reserve 0 for disabled */ + ltc->zbc_max = min(func->zbc, NVKM_LTC_MAX_ZBC_CNT) - 1; + return 0; +} |