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      1 /*	$NetBSD: nouveau_nvkm_engine_disp_headgf119.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2017 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_engine_disp_headgf119.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $");
     28 
     29 #include "head.h"
     30 
     31 static void
     32 gf119_head_vblank_put(struct nvkm_head *head)
     33 {
     34 	struct nvkm_device *device = head->disp->engine.subdev.device;
     35 	const u32 hoff = head->id * 0x800;
     36 	nvkm_mask(device, 0x6100c0 + hoff, 0x00000001, 0x00000000);
     37 }
     38 
     39 static void
     40 gf119_head_vblank_get(struct nvkm_head *head)
     41 {
     42 	struct nvkm_device *device = head->disp->engine.subdev.device;
     43 	const u32 hoff = head->id * 0x800;
     44 	nvkm_mask(device, 0x6100c0 + hoff, 0x00000001, 0x00000001);
     45 }
     46 
     47 void
     48 gf119_head_rgclk(struct nvkm_head *head, int div)
     49 {
     50 	struct nvkm_device *device = head->disp->engine.subdev.device;
     51 	nvkm_mask(device, 0x612200 + (head->id * 0x800), 0x0000000f, div);
     52 }
     53 
     54 static void
     55 gf119_head_state(struct nvkm_head *head, struct nvkm_head_state *state)
     56 {
     57 	struct nvkm_device *device = head->disp->engine.subdev.device;
     58 	const u32 hoff = (state == &head->asy) * 0x20000 + head->id * 0x300;
     59 	u32 data;
     60 
     61 	data = nvkm_rd32(device, 0x640414 + hoff);
     62 	state->vtotal = (data & 0xffff0000) >> 16;
     63 	state->htotal = (data & 0x0000ffff);
     64 	data = nvkm_rd32(device, 0x640418 + hoff);
     65 	state->vsynce = (data & 0xffff0000) >> 16;
     66 	state->hsynce = (data & 0x0000ffff);
     67 	data = nvkm_rd32(device, 0x64041c + hoff);
     68 	state->vblanke = (data & 0xffff0000) >> 16;
     69 	state->hblanke = (data & 0x0000ffff);
     70 	data = nvkm_rd32(device, 0x640420 + hoff);
     71 	state->vblanks = (data & 0xffff0000) >> 16;
     72 	state->hblanks = (data & 0x0000ffff);
     73 	state->hz = nvkm_rd32(device, 0x640450 + hoff);
     74 
     75 	data = nvkm_rd32(device, 0x640404 + hoff);
     76 	switch ((data & 0x000003c0) >> 6) {
     77 	case 6: state->or.depth = 30; break;
     78 	case 5: state->or.depth = 24; break;
     79 	case 2: state->or.depth = 18; break;
     80 	case 0: state->or.depth = 18; break; /*XXX: "default" */
     81 	default:
     82 		state->or.depth = 18;
     83 		WARN_ON(1);
     84 		break;
     85 	}
     86 }
     87 
     88 static const struct nvkm_head_func
     89 gf119_head = {
     90 	.state = gf119_head_state,
     91 	.rgpos = nv50_head_rgpos,
     92 	.rgclk = gf119_head_rgclk,
     93 	.vblank_get = gf119_head_vblank_get,
     94 	.vblank_put = gf119_head_vblank_put,
     95 };
     96 
     97 int
     98 gf119_head_new(struct nvkm_disp *disp, int id)
     99 {
    100 	return nvkm_head_new_(&gf119_head, disp, id);
    101 }
    102 
    103 int
    104 gf119_head_cnt(struct nvkm_disp *disp, unsigned long *pmask)
    105 {
    106 	struct nvkm_device *device = disp->engine.subdev.device;
    107 	*pmask = nvkm_rd32(device, 0x612004) & 0x0000000f;
    108 	return nvkm_rd32(device, 0x022448);
    109 }
    110