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

nv35.c (2232B)

      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
     29static void
     30nv35_fb_tile_comp(struct nvkm_fb *fb, int i, u32 size, u32 flags,
     31		  struct nvkm_fb_tile *tile)
     32{
     33	u32 tiles = DIV_ROUND_UP(size, 0x40);
     34	u32 tags  = round_up(tiles / fb->ram->parts, 0x40);
     35	if (!nvkm_mm_head(&fb->tags.mm, 0, 1, tags, tags, 1, &tile->tag)) {
     36		if (flags & 2) tile->zcomp |= 0x04000000; /* Z16 */
     37		else           tile->zcomp |= 0x08000000; /* Z24S8 */
     38		tile->zcomp |= ((tile->tag->offset           ) >> 6);
     39		tile->zcomp |= ((tile->tag->offset + tags - 1) >> 6) << 13;
     40#ifdef __BIG_ENDIAN
     41		tile->zcomp |= 0x40000000;
     42#endif
     43	}
     44}
     45
     46static const struct nvkm_fb_func
     47nv35_fb = {
     48	.tags = nv20_fb_tags,
     49	.init = nv30_fb_init,
     50	.tile.regions = 8,
     51	.tile.init = nv30_fb_tile_init,
     52	.tile.comp = nv35_fb_tile_comp,
     53	.tile.fini = nv20_fb_tile_fini,
     54	.tile.prog = nv20_fb_tile_prog,
     55	.ram_new = nv20_ram_new,
     56};
     57
     58int
     59nv35_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
     60{
     61	return nvkm_fb_new_(&nv35_fb, device, type, inst, pfb);
     62}