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      1 /*	$NetBSD: nouveau_nvkm_engine_disp_nv04.c,v 1.3 2021/12/18 23:45:35 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_engine_disp_nv04.c,v 1.3 2021/12/18 23:45:35 riastradh Exp $");
     28 
     29 #include "priv.h"
     30 #include "head.h"
     31 
     32 static const struct nvkm_disp_oclass *
     33 nv04_disp_root(struct nvkm_disp *disp)
     34 {
     35 	return &nv04_disp_root_oclass;
     36 }
     37 
     38 static void
     39 nv04_disp_intr(struct nvkm_disp *disp)
     40 {
     41 	struct nvkm_subdev *subdev = &disp->engine.subdev;
     42 	struct nvkm_device *device = subdev->device;
     43 	u32 crtc0 = nvkm_rd32(device, 0x600100);
     44 	u32 crtc1 = nvkm_rd32(device, 0x602100);
     45 	u32 pvideo;
     46 
     47 	if (crtc0 & 0x00000001) {
     48 		nvkm_disp_vblank(disp, 0);
     49 		nvkm_wr32(device, 0x600100, 0x00000001);
     50 	}
     51 
     52 	if (crtc1 & 0x00000001) {
     53 		nvkm_disp_vblank(disp, 1);
     54 		nvkm_wr32(device, 0x602100, 0x00000001);
     55 	}
     56 
     57 	if (device->chipset >= 0x10 && device->chipset <= 0x40) {
     58 		pvideo = nvkm_rd32(device, 0x8100);
     59 		if (pvideo & ~0x11)
     60 			nvkm_info(subdev, "PVIDEO intr: %08x\n", pvideo);
     61 		nvkm_wr32(device, 0x8100, pvideo);
     62 	}
     63 }
     64 
     65 static const struct nvkm_disp_func
     66 nv04_disp = {
     67 	.intr = nv04_disp_intr,
     68 	.root = nv04_disp_root,
     69 };
     70 
     71 int
     72 nv04_disp_new(struct nvkm_device *device, int index, struct nvkm_disp **pdisp)
     73 {
     74 	int ret, i;
     75 
     76 	ret = nvkm_disp_new_(&nv04_disp, device, index, pdisp);
     77 	if (ret)
     78 		return ret;
     79 
     80 	for (i = 0; i < 2; i++) {
     81 		ret = nv04_head_new(*pdisp, i);
     82 		if (ret)
     83 			return ret;
     84 	}
     85 
     86 	return 0;
     87 }
     88