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      1 /*	$NetBSD: nouveau_nvkm_subdev_fb_nv46.c,v 1.3 2021/12/18 23:45:39 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright (C) 2010 Francisco Jerez.
      5  * All Rights Reserved.
      6  *
      7  * Permission is hereby granted, free of charge, to any person obtaining
      8  * a copy of this software and associated documentation files (the
      9  * "Software"), to deal in the Software without restriction, including
     10  * without limitation the rights to use, copy, modify, merge, publish,
     11  * distribute, sublicense, and/or sell copies of the Software, and to
     12  * permit persons to whom the Software is furnished to do so, subject to
     13  * the following conditions:
     14  *
     15  * The above copyright notice and this permission notice (including the
     16  * next paragraph) shall be included in all copies or substantial
     17  * portions of the Software.
     18  *
     19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     20  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
     22  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
     23  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     24  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     25  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     26  *
     27  */
     28 #include <sys/cdefs.h>
     29 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_fb_nv46.c,v 1.3 2021/12/18 23:45:39 riastradh Exp $");
     30 
     31 #include "priv.h"
     32 #include "ram.h"
     33 
     34 void
     35 nv46_fb_tile_init(struct nvkm_fb *fb, int i, u32 addr, u32 size, u32 pitch,
     36 		  u32 flags, struct nvkm_fb_tile *tile)
     37 {
     38 	/* for performance, select alternate bank offset for zeta */
     39 	if (!(flags & 4)) tile->addr = (0 << 3);
     40 	else              tile->addr = (1 << 3);
     41 
     42 	tile->addr |= 0x00000001; /* mode = vram */
     43 	tile->addr |= addr;
     44 	tile->limit = max(1u, addr + size) - 1;
     45 	tile->pitch = pitch;
     46 }
     47 
     48 static const struct nvkm_fb_func
     49 nv46_fb = {
     50 	.init = nv44_fb_init,
     51 	.tile.regions = 15,
     52 	.tile.init = nv46_fb_tile_init,
     53 	.tile.fini = nv20_fb_tile_fini,
     54 	.tile.prog = nv44_fb_tile_prog,
     55 	.ram_new = nv44_ram_new,
     56 };
     57 
     58 int
     59 nv46_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb)
     60 {
     61 	return nvkm_fb_new_(&nv46_fb, device, index, pfb);
     62 }
     63