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      1 /*	$NetBSD: nouveau_nvkm_subdev_ltc_gm200.c,v 1.2 2021/12/18 23:45:40 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2015 Red Hat Inc.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included in
     14  * all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     22  * OTHER DEALINGS IN THE SOFTWARE.
     23  *
     24  * Authors: Ben Skeggs <bskeggs (at) redhat.com>
     25  */
     26 #include <sys/cdefs.h>
     27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_ltc_gm200.c,v 1.2 2021/12/18 23:45:40 riastradh Exp $");
     28 
     29 #include "priv.h"
     30 
     31 #include <subdev/fb.h>
     32 #include <subdev/timer.h>
     33 
     34 static int
     35 gm200_ltc_oneinit(struct nvkm_ltc *ltc)
     36 {
     37 	struct nvkm_device *device = ltc->subdev.device;
     38 
     39 	ltc->ltc_nr = nvkm_rd32(device, 0x12006c);
     40 	ltc->lts_nr = nvkm_rd32(device, 0x17e280) >> 28;
     41 
     42 	return gf100_ltc_oneinit_tag_ram(ltc);
     43 }
     44 static void
     45 gm200_ltc_init(struct nvkm_ltc *ltc)
     46 {
     47 	nvkm_wr32(ltc->subdev.device, 0x17e278, ltc->tag_base);
     48 }
     49 
     50 static const struct nvkm_ltc_func
     51 gm200_ltc = {
     52 	.oneinit = gm200_ltc_oneinit,
     53 	.init = gm200_ltc_init,
     54 	.intr = gm107_ltc_intr,
     55 	.cbc_clear = gm107_ltc_cbc_clear,
     56 	.cbc_wait = gm107_ltc_cbc_wait,
     57 	.zbc = 16,
     58 	.zbc_clear_color = gm107_ltc_zbc_clear_color,
     59 	.zbc_clear_depth = gm107_ltc_zbc_clear_depth,
     60 	.invalidate = gf100_ltc_invalidate,
     61 	.flush = gf100_ltc_flush,
     62 };
     63 
     64 int
     65 gm200_ltc_new(struct nvkm_device *device, int index, struct nvkm_ltc **pltc)
     66 {
     67 	return nvkm_ltc_new_(&gm200_ltc, device, index, pltc);
     68 }
     69