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      1 /*	$NetBSD: nouveau_nvkm_subdev_devinit_g98.c,v 1.3 2021/12/18 23:45:39 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2013 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_devinit_g98.c,v 1.3 2021/12/18 23:45:39 riastradh Exp $");
     28 
     29 #include "nv50.h"
     30 
     31 #include <subdev/bios.h>
     32 #include <subdev/bios/init.h>
     33 
     34 static u64
     35 g98_devinit_disable(struct nvkm_devinit *init)
     36 {
     37 	struct nvkm_device *device = init->subdev.device;
     38 	u32 r001540 = nvkm_rd32(device, 0x001540);
     39 	u32 r00154c = nvkm_rd32(device, 0x00154c);
     40 	u64 disable = 0ULL;
     41 
     42 	if (!(r001540 & 0x40000000)) {
     43 		disable |= (1ULL << NVKM_ENGINE_MSPDEC);
     44 		disable |= (1ULL << NVKM_ENGINE_MSVLD);
     45 		disable |= (1ULL << NVKM_ENGINE_MSPPP);
     46 	}
     47 
     48 	if (!(r00154c & 0x00000004))
     49 		disable |= (1ULL << NVKM_ENGINE_DISP);
     50 	if (!(r00154c & 0x00000020))
     51 		disable |= (1ULL << NVKM_ENGINE_MSVLD);
     52 	if (!(r00154c & 0x00000040))
     53 		disable |= (1ULL << NVKM_ENGINE_SEC);
     54 
     55 	return disable;
     56 }
     57 
     58 static const struct nvkm_devinit_func
     59 g98_devinit = {
     60 	.preinit = nv50_devinit_preinit,
     61 	.init = nv50_devinit_init,
     62 	.post = nv04_devinit_post,
     63 	.pll_set = nv50_devinit_pll_set,
     64 	.disable = g98_devinit_disable,
     65 };
     66 
     67 int
     68 g98_devinit_new(struct nvkm_device *device, int index,
     69 		struct nvkm_devinit **pinit)
     70 {
     71 	return nv50_devinit_new_(&g98_devinit, device, index, pinit);
     72 }
     73