drivers/gpu/drm/nouveau/nvkm/subdev/gsp/base.c

   1 /*
   2  * Copyright 2019 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 "priv.h"
  23 #include <core/falcon.h>
  24 #include <core/firmware.h>
  25 #include <subdev/acr.h>
  26 #include <subdev/top.h>
  27
  28 static void *
  29 nvkm_gsp_dtor(struct nvkm_subdev *subdev)
  30 {
  31         struct nvkm_gsp *gsp = nvkm_gsp(subdev);
  32         nvkm_falcon_dtor(&gsp->falcon);
  33         return gsp;
  34 }
  35
  36 static const struct nvkm_subdev_func
  37 nvkm_gsp = {
  38         .dtor = nvkm_gsp_dtor,
  39 };
  40
  41 int
  42 nvkm_gsp_new_(const struct nvkm_gsp_fwif *fwif, struct nvkm_device *device,
  43               int index, struct nvkm_gsp **pgsp)
  44 {
  45         struct nvkm_gsp *gsp;
  46
  47         if (!(gsp = *pgsp = kzalloc(sizeof(*gsp), GFP_KERNEL)))
  48                 return -ENOMEM;
  49
  50         nvkm_subdev_ctor(&nvkm_gsp, device, index, &gsp->subdev);
  51
  52         fwif = nvkm_firmware_load(&gsp->subdev, fwif, "Gsp", gsp);
  53         if (IS_ERR(fwif))
  54                 return PTR_ERR(fwif);
  55
  56         return nvkm_falcon_ctor(fwif->flcn, &gsp->subdev,
  57                                 nvkm_subdev_name[gsp->subdev.index], 0,
  58                                 &gsp->falcon);
  59 }