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      1 /*	$NetBSD: nouveau_nvkm_subdev_mc_tu102.c,v 1.2 2021/12/18 23:45:40 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2018 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 #include <sys/cdefs.h>
     25 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_mc_tu102.c,v 1.2 2021/12/18 23:45:40 riastradh Exp $");
     26 
     27 #include "priv.h"
     28 
     29 static void
     30 tu102_mc_intr_hack(struct nvkm_mc *mc, bool *handled)
     31 {
     32 	struct nvkm_device *device = mc->subdev.device;
     33 	u32 stat = nvkm_rd32(device, 0xb81010);
     34 	if (stat & 0x00000050) {
     35 		struct nvkm_subdev *subdev =
     36 			nvkm_device_subdev(device, NVKM_SUBDEV_FAULT);
     37 		nvkm_wr32(device, 0xb81010, stat & 0x00000050);
     38 		if (subdev)
     39 			nvkm_subdev_intr(subdev);
     40 		*handled = true;
     41 	}
     42 }
     43 
     44 static const struct nvkm_mc_func
     45 tu102_mc = {
     46 	.init = nv50_mc_init,
     47 	.intr = gp100_mc_intr,
     48 	.intr_unarm = gp100_mc_intr_unarm,
     49 	.intr_rearm = gp100_mc_intr_rearm,
     50 	.intr_mask = gp100_mc_intr_mask,
     51 	.intr_stat = gf100_mc_intr_stat,
     52 	.intr_hack = tu102_mc_intr_hack,
     53 	.reset = gk104_mc_reset,
     54 };
     55 
     56 int
     57 tu102_mc_new(struct nvkm_device *device, int index, struct nvkm_mc **pmc)
     58 {
     59 	return gp100_mc_new_(&tu102_mc, device, index, pmc);
     60 }
     61