xref: /linux/drivers/gpu/drm/nouveau/dispnv50/core907d.c (revision cdd38c5f1ce4398ec58fec95904b75824daab7b5)
1 /*
2  * Copyright 2018 Red Hat Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  */
22 #include "core.h"
23 #include "head.h"
24 
25 #include <nvif/push507c.h>
26 #include <nvif/timer.h>
27 
28 #include <nvhw/class/cl907d.h>
29 
30 #include "nouveau_bo.h"
31 
32 int
core907d_caps_init(struct nouveau_drm * drm,struct nv50_disp * disp)33 core907d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp)
34 {
35 	struct nv50_core *core = disp->core;
36 	struct nouveau_bo *bo = disp->sync;
37 	s64 time;
38 	int ret;
39 
40 	NVBO_WR32(bo, NV50_DISP_CORE_NTFY, NV907D_CORE_NOTIFIER_3, CAPABILITIES_4,
41 				     NVDEF(NV907D_CORE_NOTIFIER_3, CAPABILITIES_4, DONE, FALSE));
42 
43 	ret = core507d_read_caps(disp);
44 	if (ret < 0)
45 		return ret;
46 
47 	time = nvif_msec(core->chan.base.device, 2000ULL,
48 			 if (NVBO_TD32(bo, NV50_DISP_CORE_NTFY,
49 				       NV907D_CORE_NOTIFIER_3, CAPABILITIES_4, DONE, ==, TRUE))
50 				 break;
51 			 usleep_range(1, 2);
52 			 );
53 	if (time < 0)
54 		NV_ERROR(drm, "core caps notifier timeout\n");
55 
56 	return 0;
57 }
58 
59 static const struct nv50_core_func
60 core907d = {
61 	.init = core507d_init,
62 	.ntfy_init = core507d_ntfy_init,
63 	.caps_init = core907d_caps_init,
64 	.ntfy_wait_done = core507d_ntfy_wait_done,
65 	.update = core507d_update,
66 	.head = &head907d,
67 #if IS_ENABLED(CONFIG_DEBUG_FS)
68 	.crc = &crc907d,
69 #endif
70 	.dac = &dac907d,
71 	.sor = &sor907d,
72 };
73 
74 int
core907d_new(struct nouveau_drm * drm,s32 oclass,struct nv50_core ** pcore)75 core907d_new(struct nouveau_drm *drm, s32 oclass, struct nv50_core **pcore)
76 {
77 	return core507d_new_(&core907d, drm, oclass, pcore);
78 }
79