diff options
Diffstat (limited to 'nvkm/core/ramht.c')
-rw-r--r-- | nvkm/core/ramht.c | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/nvkm/core/ramht.c b/nvkm/core/ramht.c deleted file mode 100644 index 25cd6f290..000000000 --- a/nvkm/core/ramht.c +++ /dev/null @@ -1,108 +0,0 @@ -/* - * Copyright 2012 Red Hat Inc. - * - * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 <core/object.h> -#include <core/ramht.h> - -#include <subdev/bar.h> - -static u32 -nouveau_ramht_hash(struct nouveau_ramht *ramht, int chid, u32 handle) -{ - u32 hash = 0; - - while (handle) { - hash ^= (handle & ((1 << ramht->bits) - 1)); - handle >>= ramht->bits; - } - - hash ^= chid << (ramht->bits - 4); - hash = hash << 3; - return hash; -} - -int -nouveau_ramht_insert(struct nouveau_ramht *ramht, int chid, - u32 handle, u32 context) -{ - struct nouveau_bar *bar = nouveau_bar(ramht); - u32 co, ho; - - co = ho = nouveau_ramht_hash(ramht, chid, handle); - do { - if (!nv_ro32(ramht, co + 4)) { - nv_wo32(ramht, co + 0, handle); - nv_wo32(ramht, co + 4, context); - if (bar) - bar->flush(bar); - return co; - } - - co += 8; - if (co >= nv_gpuobj(ramht)->size) - co = 0; - } while (co != ho); - - return -ENOMEM; -} - -void -nouveau_ramht_remove(struct nouveau_ramht *ramht, int cookie) -{ - struct nouveau_bar *bar = nouveau_bar(ramht); - nv_wo32(ramht, cookie + 0, 0x00000000); - nv_wo32(ramht, cookie + 4, 0x00000000); - if (bar) - bar->flush(bar); -} - -static struct nouveau_oclass -nouveau_ramht_oclass = { - .handle = 0x0000abcd, - .ofuncs = &(struct nouveau_ofuncs) { - .ctor = NULL, - .dtor = _nouveau_gpuobj_dtor, - .init = _nouveau_gpuobj_init, - .fini = _nouveau_gpuobj_fini, - .rd32 = _nouveau_gpuobj_rd32, - .wr32 = _nouveau_gpuobj_wr32, - }, -}; - -int -nouveau_ramht_new(struct nouveau_object *parent, struct nouveau_object *pargpu, - u32 size, u32 align, struct nouveau_ramht **pramht) -{ - struct nouveau_ramht *ramht; - int ret; - - ret = nouveau_gpuobj_create(parent, parent->engine ? - &parent->engine->subdev.object : parent, /* <nv50 ramht */ - &nouveau_ramht_oclass, 0, pargpu, size, - align, NVOBJ_FLAG_ZERO_ALLOC, &ramht); - *pramht = ramht; - if (ret) - return ret; - - ramht->bits = order_base_2(nv_gpuobj(ramht)->size >> 3); - return 0; -} |