diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c b/drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c deleted file mode 100644 index 245f0ebaa6af..000000000000 --- a/drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c +++ /dev/null @@ -1,103 +0,0 @@ -/* - * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - */ - -#include <subdev/ibus.h> -#include <subdev/timer.h> - -struct gk20a_ibus_priv { - struct nouveau_ibus base; -}; - -static void -gk20a_ibus_init_priv_ring(struct gk20a_ibus_priv *priv) -{ - nv_mask(priv, 0x137250, 0x3f, 0); - - nv_mask(priv, 0x000200, 0x20, 0); - usleep_range(20, 30); - nv_mask(priv, 0x000200, 0x20, 0x20); - - nv_wr32(priv, 0x12004c, 0x4); - nv_wr32(priv, 0x122204, 0x2); - nv_rd32(priv, 0x122204); -} - -static void -gk20a_ibus_intr(struct nouveau_subdev *subdev) -{ - struct gk20a_ibus_priv *priv = (void *)subdev; - u32 status0 = nv_rd32(priv, 0x120058); - - if (status0 & 0x7) { - nv_debug(priv, "resetting priv ring\n"); - gk20a_ibus_init_priv_ring(priv); - } - - /* Acknowledge interrupt */ - nv_mask(priv, 0x12004c, 0x2, 0x2); - - if (!nv_wait(subdev, 0x12004c, 0x3f, 0x00)) - nv_warn(priv, "timeout waiting for ringmaster ack\n"); -} - -static int -gk20a_ibus_init(struct nouveau_object *object) -{ - struct gk20a_ibus_priv *priv = (void *)object; - int ret; - - ret = _nouveau_ibus_init(object); - if (ret) - return ret; - - gk20a_ibus_init_priv_ring(priv); - - return 0; -} - -static int -gk20a_ibus_ctor(struct nouveau_object *parent, struct nouveau_object *engine, - struct nouveau_oclass *oclass, void *data, u32 size, - struct nouveau_object **pobject) -{ - struct gk20a_ibus_priv *priv; - int ret; - - ret = nouveau_ibus_create(parent, engine, oclass, &priv); - *pobject = nv_object(priv); - if (ret) - return ret; - - nv_subdev(priv)->intr = gk20a_ibus_intr; - return 0; -} - -struct nouveau_oclass -gk20a_ibus_oclass = { - .handle = NV_SUBDEV(IBUS, 0xea), - .ofuncs = &(struct nouveau_ofuncs) { - .ctor = gk20a_ibus_ctor, - .dtor = _nouveau_ibus_dtor, - .init = gk20a_ibus_init, - .fini = _nouveau_ibus_fini, - }, -}; |