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

cursc37a.c (2133B)

      1/*
      2 * Copyright 2018 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#include "curs.h"
     23#include "atom.h"
     24
     25#include <nvhw/class/clc37a.h>
     26
     27static int
     28cursc37a_update(struct nv50_wndw *wndw, u32 *interlock)
     29{
     30	struct nvif_object *user = &wndw->wimm.base.user;
     31	int ret = nvif_chan_wait(&wndw->wimm, 1);
     32	if (ret == 0)
     33		NVIF_WR32(user, NVC37A, UPDATE, 0x00000001);
     34	return ret;
     35}
     36
     37static int
     38cursc37a_point(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
     39{
     40	struct nvif_object *user = &wndw->wimm.base.user;
     41	int ret = nvif_chan_wait(&wndw->wimm, 1);
     42	if (ret == 0) {
     43		NVIF_WR32(user, NVC37A, SET_CURSOR_HOT_SPOT_POINT_OUT(0),
     44			  NVVAL(NVC37A, SET_CURSOR_HOT_SPOT_POINT_OUT, X, asyw->point.x) |
     45			  NVVAL(NVC37A, SET_CURSOR_HOT_SPOT_POINT_OUT, Y, asyw->point.y));
     46	}
     47	return ret;
     48}
     49
     50static const struct nv50_wimm_func
     51cursc37a = {
     52	.point = cursc37a_point,
     53	.update = cursc37a_update,
     54};
     55
     56int
     57cursc37a_new(struct nouveau_drm *drm, int head, s32 oclass,
     58	     struct nv50_wndw **pwndw)
     59{
     60	return curs507a_new_(&cursc37a, drm, head, oclass,
     61			     0x00000001 << head, pwndw);
     62}