drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgf119.c

   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 "dmacnv50.h"
  25 #include "rootnv50.h"
  26
  27 #include <core/ramht.h>
  28 #include <subdev/timer.h>
  29
  30 int
  31 gf119_disp_dmac_bind(struct nv50_disp_dmac *chan,
  32                      struct nvkm_object *object, u32 handle)
  33 {
  34         return nvkm_ramht_insert(chan->base.root->ramht, object,
  35                                  chan->base.chid, -9, handle,
  36                                  chan->base.chid << 27 | 0x00000001);
  37 }
  38
  39 static void
  40 gf119_disp_dmac_fini(struct nv50_disp_dmac *chan)
  41 {
  42         struct nv50_disp *disp = chan->base.root->disp;
  43         struct nvkm_subdev *subdev = &disp->base.engine.subdev;
  44         struct nvkm_device *device = subdev->device;
  45         int chid = chan->base.chid;
  46
  47         /* deactivate channel */
  48         nvkm_mask(device, 0x610490 + (chid * 0x0010), 0x00001010, 0x00001000);
  49         nvkm_mask(device, 0x610490 + (chid * 0x0010), 0x00000003, 0x00000000);
  50         if (nvkm_msec(device, 2000,
  51                 if (!(nvkm_rd32(device, 0x610490 + (chid * 0x10)) & 0x001e0000))
  52                         break;
  53         ) < 0) {
  54                 nvkm_error(subdev, "ch %d fini: %08x\n", chid,
  55                            nvkm_rd32(device, 0x610490 + (chid * 0x10)));
  56         }
  57
  58         /* disable error reporting and completion notification */
  59         nvkm_mask(device, 0x610090, 0x00000001 << chid, 0x00000000);
  60         nvkm_mask(device, 0x6100a0, 0x00000001 << chid, 0x00000000);
  61 }
  62
  63 static int
  64 gf119_disp_dmac_init(struct nv50_disp_dmac *chan)
  65 {
  66         struct nv50_disp *disp = chan->base.root->disp;
  67         struct nvkm_subdev *subdev = &disp->base.engine.subdev;
  68         struct nvkm_device *device = subdev->device;
  69         int chid = chan->base.chid;
  70
  71         /* enable error reporting */
  72         nvkm_mask(device, 0x6100a0, 0x00000001 << chid, 0x00000001 << chid);
  73
  74         /* initialise channel for dma command submission */
  75         nvkm_wr32(device, 0x610494 + (chid * 0x0010), chan->push);
  76         nvkm_wr32(device, 0x610498 + (chid * 0x0010), 0x00010000);
  77         nvkm_wr32(device, 0x61049c + (chid * 0x0010), 0x00000001);
  78         nvkm_mask(device, 0x610490 + (chid * 0x0010), 0x00000010, 0x00000010);
  79         nvkm_wr32(device, 0x640000 + (chid * 0x1000), 0x00000000);
  80         nvkm_wr32(device, 0x610490 + (chid * 0x0010), 0x00000013);
  81
  82         /* wait for it to go inactive */
  83         if (nvkm_msec(device, 2000,
  84                 if (!(nvkm_rd32(device, 0x610490 + (chid * 0x10)) & 0x80000000))
  85                         break;
  86         ) < 0) {
  87                 nvkm_error(subdev, "ch %d init: %08x\n", chid,
  88                            nvkm_rd32(device, 0x610490 + (chid * 0x10)));
  89                 return -EBUSY;
  90         }
  91
  92         return 0;
  93 }
  94
  95 const struct nv50_disp_dmac_func
  96 gf119_disp_dmac_func = {
  97         .init = gf119_disp_dmac_init,
  98         .fini = gf119_disp_dmac_fini,
  99         .bind = gf119_disp_dmac_bind,
 100 };