132 lines
3.4 KiB
C
132 lines
3.4 KiB
C
/*
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* Copyright 2014 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 <bskeggs@redhat.com>
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*/
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#include "priv.h"
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#include <core/memory.h>
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void
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nvkm_ltc_tags_clear(struct nvkm_device *device, u32 first, u32 count)
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{
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struct nvkm_ltc *ltc = device->ltc;
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const u32 limit = first + count - 1;
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BUG_ON((first > limit) || (limit >= ltc->num_tags));
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mutex_lock(<c->subdev.mutex);
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ltc->func->cbc_clear(ltc, first, limit);
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ltc->func->cbc_wait(ltc);
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mutex_unlock(<c->subdev.mutex);
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}
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int
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nvkm_ltc_zbc_color_get(struct nvkm_ltc *ltc, int index, const u32 color[4])
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{
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memcpy(ltc->zbc_color[index], color, sizeof(ltc->zbc_color[index]));
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ltc->func->zbc_clear_color(ltc, index, color);
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return index;
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}
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int
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nvkm_ltc_zbc_depth_get(struct nvkm_ltc *ltc, int index, const u32 depth)
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{
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ltc->zbc_depth[index] = depth;
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ltc->func->zbc_clear_depth(ltc, index, depth);
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return index;
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}
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void
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nvkm_ltc_invalidate(struct nvkm_ltc *ltc)
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{
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if (ltc->func->invalidate)
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ltc->func->invalidate(ltc);
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}
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void
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nvkm_ltc_flush(struct nvkm_ltc *ltc)
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{
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if (ltc->func->flush)
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ltc->func->flush(ltc);
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}
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static void
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nvkm_ltc_intr(struct nvkm_subdev *subdev)
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{
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struct nvkm_ltc *ltc = nvkm_ltc(subdev);
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ltc->func->intr(ltc);
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}
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static int
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nvkm_ltc_oneinit(struct nvkm_subdev *subdev)
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{
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struct nvkm_ltc *ltc = nvkm_ltc(subdev);
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return ltc->func->oneinit(ltc);
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}
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static int
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nvkm_ltc_init(struct nvkm_subdev *subdev)
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{
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struct nvkm_ltc *ltc = nvkm_ltc(subdev);
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int i;
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for (i = ltc->zbc_min; i <= ltc->zbc_max; i++) {
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ltc->func->zbc_clear_color(ltc, i, ltc->zbc_color[i]);
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ltc->func->zbc_clear_depth(ltc, i, ltc->zbc_depth[i]);
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}
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ltc->func->init(ltc);
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return 0;
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}
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static void *
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nvkm_ltc_dtor(struct nvkm_subdev *subdev)
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{
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struct nvkm_ltc *ltc = nvkm_ltc(subdev);
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nvkm_memory_unref(<c->tag_ram);
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return ltc;
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}
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static const struct nvkm_subdev_func
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nvkm_ltc = {
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.dtor = nvkm_ltc_dtor,
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.oneinit = nvkm_ltc_oneinit,
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.init = nvkm_ltc_init,
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.intr = nvkm_ltc_intr,
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};
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int
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nvkm_ltc_new_(const struct nvkm_ltc_func *func, struct nvkm_device *device,
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int index, struct nvkm_ltc **pltc)
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{
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struct nvkm_ltc *ltc;
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if (!(ltc = *pltc = kzalloc(sizeof(*ltc), GFP_KERNEL)))
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return -ENOMEM;
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nvkm_subdev_ctor(&nvkm_ltc, device, index, <c->subdev);
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ltc->func = func;
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ltc->zbc_min = 1; /* reserve 0 for disabled */
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ltc->zbc_max = min(func->zbc, NVKM_LTC_MAX_ZBC_CNT) - 1;
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return 0;
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}
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