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      1 /*	$NetBSD: nouveau_nvkm_subdev_ltc_gk104.c,v 1.3 2021/12/18 23:45:40 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2012 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
     25  */
     26 #include <sys/cdefs.h>
     27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_ltc_gk104.c,v 1.3 2021/12/18 23:45:40 riastradh Exp $");
     28 
     29 #include "priv.h"
     30 
     31 static void
     32 gk104_ltc_init(struct nvkm_ltc *ltc)
     33 {
     34 	struct nvkm_device *device = ltc->subdev.device;
     35 	u32 lpg128 = !(nvkm_rd32(device, 0x100c80) & 0x00000001);
     36 
     37 	nvkm_wr32(device, 0x17e8d8, ltc->ltc_nr);
     38 	nvkm_wr32(device, 0x17e000, ltc->ltc_nr);
     39 	nvkm_wr32(device, 0x17e8d4, ltc->tag_base);
     40 	nvkm_mask(device, 0x17e8c0, 0x00000002, lpg128 ? 0x00000002 : 0x00000000);
     41 }
     42 
     43 static const struct nvkm_ltc_func
     44 gk104_ltc = {
     45 	.oneinit = gf100_ltc_oneinit,
     46 	.init = gk104_ltc_init,
     47 	.intr = gf100_ltc_intr,
     48 	.cbc_clear = gf100_ltc_cbc_clear,
     49 	.cbc_wait = gf100_ltc_cbc_wait,
     50 	.zbc = 16,
     51 	.zbc_clear_color = gf100_ltc_zbc_clear_color,
     52 	.zbc_clear_depth = gf100_ltc_zbc_clear_depth,
     53 	.invalidate = gf100_ltc_invalidate,
     54 	.flush = gf100_ltc_flush,
     55 };
     56 
     57 int
     58 gk104_ltc_new(struct nvkm_device *device, int index, struct nvkm_ltc **pltc)
     59 {
     60 	return nvkm_ltc_new_(&gk104_ltc, device, index, pltc);
     61 }
     62