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      1 /*	$NetBSD: nouveau_dispnv50_corec37d.c,v 1.2 2021/12/18 23:45:32 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_dispnv50_corec37d.c,v 1.2 2021/12/18 23:45:32 riastradh Exp $");
     26 
     27 #include "core.h"
     28 #include "head.h"
     29 
     30 #include <nouveau_bo.h>
     31 
     32 void
     33 corec37d_wndw_owner(struct nv50_core *core)
     34 {
     35 	const u32 windows = 8; /*XXX*/
     36 	u32 *push, i;
     37 	if ((push = evo_wait(&core->chan, 2 * windows))) {
     38 		for (i = 0; i < windows; i++) {
     39 			evo_mthd(push, 0x1000 + (i * 0x080), 1);
     40 			evo_data(push, i >> 1);
     41 		}
     42 		evo_kick(push, &core->chan);
     43 	}
     44 }
     45 
     46 void
     47 corec37d_update(struct nv50_core *core, u32 *interlock, bool ntfy)
     48 {
     49 	u32 *push;
     50 	if ((push = evo_wait(&core->chan, 9))) {
     51 		if (ntfy) {
     52 			evo_mthd(push, 0x020c, 1);
     53 			evo_data(push, 0x00001000 | NV50_DISP_CORE_NTFY);
     54 		}
     55 
     56 		evo_mthd(push, 0x0218, 2);
     57 		evo_data(push, interlock[NV50_DISP_INTERLOCK_CURS]);
     58 		evo_data(push, interlock[NV50_DISP_INTERLOCK_WNDW]);
     59 		evo_mthd(push, 0x0200, 1);
     60 		evo_data(push, 0x00000001);
     61 
     62 		if (ntfy) {
     63 			evo_mthd(push, 0x020c, 1);
     64 			evo_data(push, 0x00000000);
     65 		}
     66 		evo_kick(push, &core->chan);
     67 	}
     68 }
     69 
     70 int
     71 corec37d_ntfy_wait_done(struct nouveau_bo *bo, u32 offset,
     72 			struct nvif_device *device)
     73 {
     74 	u32 data;
     75 	s64 time = nvif_msec(device, 2000ULL,
     76 		data = nouveau_bo_rd32(bo, offset / 4 + 0);
     77 		if ((data & 0xc0000000) == 0x80000000)
     78 			break;
     79 		usleep_range(1, 2);
     80 	);
     81 	return time < 0 ? time : 0;
     82 }
     83 
     84 void
     85 corec37d_ntfy_init(struct nouveau_bo *bo, u32 offset)
     86 {
     87 	nouveau_bo_wr32(bo, offset / 4 + 0, 0x00000000);
     88 	nouveau_bo_wr32(bo, offset / 4 + 1, 0x00000000);
     89 	nouveau_bo_wr32(bo, offset / 4 + 2, 0x00000000);
     90 	nouveau_bo_wr32(bo, offset / 4 + 3, 0x00000000);
     91 }
     92 
     93 static void
     94 corec37d_init(struct nv50_core *core)
     95 {
     96 	const u32 windows = 8; /*XXX*/
     97 	u32 *push, i;
     98 	if ((push = evo_wait(&core->chan, 2 + 5 * windows))) {
     99 		evo_mthd(push, 0x0208, 1);
    100 		evo_data(push, core->chan.sync.handle);
    101 		for (i = 0; i < windows; i++) {
    102 			evo_mthd(push, 0x1004 + (i * 0x080), 2);
    103 			evo_data(push, 0x0000001f);
    104 			evo_data(push, 0x00000000);
    105 			evo_mthd(push, 0x1010 + (i * 0x080), 1);
    106 			evo_data(push, 0x00127fff);
    107 		}
    108 		evo_kick(push, &core->chan);
    109 		core->assign_windows = true;
    110 	}
    111 }
    112 
    113 static const struct nv50_core_func
    114 corec37d = {
    115 	.init = corec37d_init,
    116 	.ntfy_init = corec37d_ntfy_init,
    117 	.ntfy_wait_done = corec37d_ntfy_wait_done,
    118 	.update = corec37d_update,
    119 	.wndw.owner = corec37d_wndw_owner,
    120 	.head = &headc37d,
    121 	.sor = &sorc37d,
    122 };
    123 
    124 int
    125 corec37d_new(struct nouveau_drm *drm, s32 oclass, struct nv50_core **pcore)
    126 {
    127 	return core507d_new_(&corec37d, drm, oclass, pcore);
    128 }
    129