cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

nv46.c (2019B)

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