LXR linux/drivers/gpu/drm/nouveau/nvc0

   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 "nouveau_drv.h"
  25#include "nouveau_dma.h"
  26#include "nouveau_fence.h"
  27
  28#include "nv50_display.h"
  29
  30#include <nvif/push906f.h>
  31
  32#include <nvhw/class/cl906f.h>
  33
  34static int
  35nvc0_fence_emit32(struct nouveau_channel *chan, u64 virtual, u32 sequence)
  36{
  37        struct nvif_push *push = chan->chan.push;
  38        int ret = PUSH_WAIT(push, 6);
  39        if (ret == 0) {
  40                PUSH_MTHD(push, NV906F, SEMAPHOREA,
  41                          NVVAL(NV906F, SEMAPHOREA, OFFSET_UPPER, upper_32_bits(virtual)),
  42
  43                                        SEMAPHOREB, lower_32_bits(virtual),
  44                                        SEMAPHOREC, sequence,
  45
  46                                        SEMAPHORED,
  47                          NVDEF(NV906F, SEMAPHORED, OPERATION, RELEASE) |
  48                          NVDEF(NV906F, SEMAPHORED, RELEASE_WFI, EN) |
  49                          NVDEF(NV906F, SEMAPHORED, RELEASE_SIZE, 16BYTE),
  50
  51                                        NON_STALL_INTERRUPT, 0);
  52                PUSH_KICK(push);
  53        }
  54        return ret;
  55}
  56
  57static int
  58nvc0_fence_sync32(struct nouveau_channel *chan, u64 virtual, u32 sequence)
  59{
  60        struct nvif_push *push = chan->chan.push;
  61        int ret = PUSH_WAIT(push, 5);
  62        if (ret == 0) {
  63                PUSH_MTHD(push, NV906F, SEMAPHOREA,
  64                          NVVAL(NV906F, SEMAPHOREA, OFFSET_UPPER, upper_32_bits(virtual)),
  65
  66                                        SEMAPHOREB, lower_32_bits(virtual),
  67                                        SEMAPHOREC, sequence,
  68
  69                                        SEMAPHORED,
  70                          NVDEF(NV906F, SEMAPHORED, OPERATION, ACQ_GEQ) |
  71                          NVDEF(NV906F, SEMAPHORED, ACQUIRE_SWITCH, ENABLED));
  72                PUSH_KICK(push);
  73        }
  74        return ret;
  75}
  76
  77static int
  78nvc0_fence_context_new(struct nouveau_channel *chan)
  79{
  80        int ret = nv84_fence_context_new(chan);
  81        if (ret == 0) {
  82                struct nv84_fence_chan *fctx = chan->fence;
  83                fctx->base.emit32 = nvc0_fence_emit32;
  84                fctx->base.sync32 = nvc0_fence_sync32;
  85        }
  86        return ret;
  87}
  88
  89int
  90nvc0_fence_create(struct nouveau_drm *drm)
  91{
  92        int ret = nv84_fence_create(drm);
  93        if (ret == 0) {
  94                struct nv84_fence_priv *priv = drm->fence;
  95                priv->base.context_new = nvc0_fence_context_new;
  96        }
  97        return ret;
  98}
  99