| /* |
| * 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. |
| * |
| * Authors: Ben Skeggs |
| */ |
| |
| #include <subdev/fb.h> |
| #include <core/mm.h> |
| |
| #include "priv.h" |
| |
| struct nv50_instmem_priv { |
| struct nouveau_instmem base; |
| spinlock_t lock; |
| u64 addr; |
| }; |
| |
| struct nv50_instobj_priv { |
| struct nouveau_instobj base; |
| struct nouveau_mem *mem; |
| }; |
| |
| /****************************************************************************** |
| * instmem object implementation |
| *****************************************************************************/ |
| |
| static u32 |
| nv50_instobj_rd32(struct nouveau_object *object, u64 offset) |
| { |
| struct nv50_instmem_priv *priv = (void *)object->engine; |
| struct nv50_instobj_priv *node = (void *)object; |
| unsigned long flags; |
| u64 base = (node->mem->offset + offset) & 0xffffff00000ULL; |
| u64 addr = (node->mem->offset + offset) & 0x000000fffffULL; |
| u32 data; |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| if (unlikely(priv->addr != base)) { |
| nv_wr32(priv, 0x001700, base >> 16); |
| priv->addr = base; |
| } |
| data = nv_rd32(priv, 0x700000 + addr); |
| spin_unlock_irqrestore(&priv->lock, flags); |
| return data; |
| } |
| |
| static void |
| nv50_instobj_wr32(struct nouveau_object *object, u64 offset, u32 data) |
| { |
| struct nv50_instmem_priv *priv = (void *)object->engine; |
| struct nv50_instobj_priv *node = (void *)object; |
| unsigned long flags; |
| u64 base = (node->mem->offset + offset) & 0xffffff00000ULL; |
| u64 addr = (node->mem->offset + offset) & 0x000000fffffULL; |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| if (unlikely(priv->addr != base)) { |
| nv_wr32(priv, 0x001700, base >> 16); |
| priv->addr = base; |
| } |
| nv_wr32(priv, 0x700000 + addr, data); |
| spin_unlock_irqrestore(&priv->lock, flags); |
| } |
| |
| static void |
| nv50_instobj_dtor(struct nouveau_object *object) |
| { |
| struct nv50_instobj_priv *node = (void *)object; |
| struct nouveau_fb *pfb = nouveau_fb(object); |
| pfb->ram->put(pfb, &node->mem); |
| nouveau_instobj_destroy(&node->base); |
| } |
| |
| static int |
| nv50_instobj_ctor(struct nouveau_object *parent, struct nouveau_object *engine, |
| struct nouveau_oclass *oclass, void *data, u32 size, |
| struct nouveau_object **pobject) |
| { |
| struct nouveau_fb *pfb = nouveau_fb(parent); |
| struct nouveau_instobj_args *args = data; |
| struct nv50_instobj_priv *node; |
| int ret; |
| |
| args->size = max((args->size + 4095) & ~4095, (u32)4096); |
| args->align = max((args->align + 4095) & ~4095, (u32)4096); |
| |
| ret = nouveau_instobj_create(parent, engine, oclass, &node); |
| *pobject = nv_object(node); |
| if (ret) |
| return ret; |
| |
| ret = pfb->ram->get(pfb, args->size, args->align, 0, 0x800, &node->mem); |
| if (ret) |
| return ret; |
| |
| node->base.addr = node->mem->offset; |
| node->base.size = node->mem->size << 12; |
| node->mem->page_shift = 12; |
| return 0; |
| } |
| |
| static struct nouveau_instobj_impl |
| nv50_instobj_oclass = { |
| .base.ofuncs = &(struct nouveau_ofuncs) { |
| .ctor = nv50_instobj_ctor, |
| .dtor = nv50_instobj_dtor, |
| .init = _nouveau_instobj_init, |
| .fini = _nouveau_instobj_fini, |
| .rd32 = nv50_instobj_rd32, |
| .wr32 = nv50_instobj_wr32, |
| }, |
| }; |
| |
| /****************************************************************************** |
| * instmem subdev implementation |
| *****************************************************************************/ |
| |
| static int |
| nv50_instmem_fini(struct nouveau_object *object, bool suspend) |
| { |
| struct nv50_instmem_priv *priv = (void *)object; |
| priv->addr = ~0ULL; |
| return nouveau_instmem_fini(&priv->base, suspend); |
| } |
| |
| static int |
| nv50_instmem_ctor(struct nouveau_object *parent, struct nouveau_object *engine, |
| struct nouveau_oclass *oclass, void *data, u32 size, |
| struct nouveau_object **pobject) |
| { |
| struct nv50_instmem_priv *priv; |
| int ret; |
| |
| ret = nouveau_instmem_create(parent, engine, oclass, &priv); |
| *pobject = nv_object(priv); |
| if (ret) |
| return ret; |
| |
| spin_lock_init(&priv->lock); |
| return 0; |
| } |
| |
| struct nouveau_oclass * |
| nv50_instmem_oclass = &(struct nouveau_instmem_impl) { |
| .base.handle = NV_SUBDEV(INSTMEM, 0x50), |
| .base.ofuncs = &(struct nouveau_ofuncs) { |
| .ctor = nv50_instmem_ctor, |
| .dtor = _nouveau_instmem_dtor, |
| .init = _nouveau_instmem_init, |
| .fini = nv50_instmem_fini, |
| }, |
| .instobj = &nv50_instobj_oclass.base, |
| }.base; |