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

nv10.c (2311B)

      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
     30nv10_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	tile->addr  = 0x80000000 | addr;
     34	tile->limit = max(1u, addr + size) - 1;
     35	tile->pitch = pitch;
     36}
     37
     38void
     39nv10_fb_tile_fini(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile)
     40{
     41	tile->addr  = 0;
     42	tile->limit = 0;
     43	tile->pitch = 0;
     44	tile->zcomp = 0;
     45}
     46
     47void
     48nv10_fb_tile_prog(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile)
     49{
     50	struct nvkm_device *device = fb->subdev.device;
     51	nvkm_wr32(device, 0x100244 + (i * 0x10), tile->limit);
     52	nvkm_wr32(device, 0x100248 + (i * 0x10), tile->pitch);
     53	nvkm_wr32(device, 0x100240 + (i * 0x10), tile->addr);
     54	nvkm_rd32(device, 0x100240 + (i * 0x10));
     55}
     56
     57static const struct nvkm_fb_func
     58nv10_fb = {
     59	.tile.regions = 8,
     60	.tile.init = nv10_fb_tile_init,
     61	.tile.fini = nv10_fb_tile_fini,
     62	.tile.prog = nv10_fb_tile_prog,
     63	.ram_new = nv10_ram_new,
     64};
     65
     66int
     67nv10_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
     68{
     69	return nvkm_fb_new_(&nv10_fb, device, type, inst, pfb);
     70}