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

ovlynv50.c (3247B)

      1/*
      2 * Copyright 2012 Red Hat Inc.
      3 *
      4 * Permission is hereby granted, free of charge, to any person obtaining a
      5 * copy of this software and associated documentation files (the "Software"),
      6 * to deal in the Software without restriction, including without limitation
      7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8 * and/or sell copies of the Software, and to permit persons to whom the
      9 * Software is furnished to do so, subject to the following conditions:
     10 *
     11 * The above copyright notice and this permission notice shall be included in
     12 * all copies or substantial portions of the Software.
     13 *
     14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     20 * OTHER DEALINGS IN THE SOFTWARE.
     21 *
     22 * Authors: Ben Skeggs
     23 */
     24#include "channv50.h"
     25#include "head.h"
     26
     27#include <core/client.h>
     28
     29#include <nvif/cl507e.h>
     30#include <nvif/unpack.h>
     31
     32int
     33nv50_disp_ovly_new_(const struct nv50_disp_chan_func *func,
     34		    const struct nv50_disp_chan_mthd *mthd,
     35		    struct nv50_disp *disp, int chid,
     36		    const struct nvkm_oclass *oclass, void *argv, u32 argc,
     37		    struct nvkm_object **pobject)
     38{
     39	union {
     40		struct nv50_disp_overlay_channel_dma_v0 v0;
     41	} *args = argv;
     42	struct nvkm_object *parent = oclass->parent;
     43	int head, ret = -ENOSYS;
     44	u64 push;
     45
     46	nvif_ioctl(parent, "create disp overlay channel dma size %d\n", argc);
     47	if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
     48		nvif_ioctl(parent, "create disp overlay channel dma vers %d "
     49				   "pushbuf %016llx head %d\n",
     50			   args->v0.version, args->v0.pushbuf, args->v0.head);
     51		if (!nvkm_head_find(&disp->base, args->v0.head))
     52			return -EINVAL;
     53		push = args->v0.pushbuf;
     54		head = args->v0.head;
     55	} else
     56		return ret;
     57
     58	return nv50_disp_dmac_new_(func, mthd, disp, chid + head,
     59				   head, push, oclass, pobject);
     60}
     61
     62static const struct nv50_disp_mthd_list
     63nv50_disp_ovly_mthd_base = {
     64	.mthd = 0x0000,
     65	.addr = 0x000000,
     66	.data = {
     67		{ 0x0080, 0x000000 },
     68		{ 0x0084, 0x0009a0 },
     69		{ 0x0088, 0x0009c0 },
     70		{ 0x008c, 0x0009c8 },
     71		{ 0x0090, 0x6109b4 },
     72		{ 0x0094, 0x610970 },
     73		{ 0x00a0, 0x610998 },
     74		{ 0x00a4, 0x610964 },
     75		{ 0x00c0, 0x610958 },
     76		{ 0x00e0, 0x6109a8 },
     77		{ 0x00e4, 0x6109d0 },
     78		{ 0x00e8, 0x6109d8 },
     79		{ 0x0100, 0x61094c },
     80		{ 0x0104, 0x610984 },
     81		{ 0x0108, 0x61098c },
     82		{ 0x0800, 0x6109f8 },
     83		{ 0x0808, 0x610a08 },
     84		{ 0x080c, 0x610a10 },
     85		{ 0x0810, 0x610a00 },
     86		{}
     87	}
     88};
     89
     90static const struct nv50_disp_chan_mthd
     91nv50_disp_ovly_mthd = {
     92	.name = "Overlay",
     93	.addr = 0x000540,
     94	.prev = 0x000004,
     95	.data = {
     96		{ "Global", 1, &nv50_disp_ovly_mthd_base },
     97		{}
     98	}
     99};
    100
    101int
    102nv50_disp_ovly_new(const struct nvkm_oclass *oclass, void *argv, u32 argc,
    103		   struct nv50_disp *disp, struct nvkm_object **pobject)
    104{
    105	return nv50_disp_ovly_new_(&nv50_disp_dmac_func, &nv50_disp_ovly_mthd,
    106				   disp, 3, oclass, argv, argc, pobject);
    107}