/* * 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 "priv.h" #include struct nv50_instmem { struct nvkm_instmem base; spinlock_t lock; u64 addr; }; struct nv50_instobj { struct nvkm_instobj base; struct nvkm_mem *mem; }; /****************************************************************************** * instmem object implementation *****************************************************************************/ static u32 nv50_instobj_rd32(struct nvkm_object *object, u64 offset) { struct nv50_instmem *imem = (void *)nvkm_instmem(object); struct nv50_instobj *node = (void *)object; struct nvkm_device *device = imem->base.subdev.device; unsigned long flags; u64 base = (node->mem->offset + offset) & 0xffffff00000ULL; u64 addr = (node->mem->offset + offset) & 0x000000fffffULL; u32 data; spin_lock_irqsave(&imem->lock, flags); if (unlikely(imem->addr != base)) { nvkm_wr32(device, 0x001700, base >> 16); imem->addr = base; } data = nvkm_rd32(device, 0x700000 + addr); spin_unlock_irqrestore(&imem->lock, flags); return data; } static void nv50_instobj_wr32(struct nvkm_object *object, u64 offset, u32 data) { struct nv50_instmem *imem = (void *)nvkm_instmem(object); struct nv50_instobj *node = (void *)object; struct nvkm_device *device = imem->base.subdev.device; unsigned long flags; u64 base = (node->mem->offset + offset) & 0xffffff00000ULL; u64 addr = (node->mem->offset + offset) & 0x000000fffffULL; spin_lock_irqsave(&imem->lock, flags); if (unlikely(imem->addr != base)) { nvkm_wr32(device, 0x001700, base >> 16); imem->addr = base; } nvkm_wr32(device, 0x700000 + addr, data); spin_unlock_irqrestore(&imem->lock, flags); } static void nv50_instobj_dtor(struct nvkm_object *object) { struct nv50_instobj *node = (void *)object; struct nvkm_ram *ram = nvkm_fb(object)->ram; ram->func->put(ram, &node->mem); nvkm_instobj_destroy(&node->base); } static int nv50_instobj_ctor(struct nvkm_object *parent, struct nvkm_object *engine, struct nvkm_oclass *oclass, void *data, u32 size, struct nvkm_object **pobject) { struct nvkm_ram *ram = nvkm_fb(parent)->ram; struct nvkm_instobj_args *args = data; struct nv50_instobj *node; int ret; args->size = max((args->size + 4095) & ~4095, (u32)4096); args->align = max((args->align + 4095) & ~4095, (u32)4096); ret = nvkm_instobj_create(parent, engine, oclass, &node); *pobject = nv_object(node); if (ret) return ret; ret = ram->func->get(ram, 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 nvkm_instobj_impl nv50_instobj_oclass = { .base.ofuncs = &(struct nvkm_ofuncs) { .ctor = nv50_instobj_ctor, .dtor = nv50_instobj_dtor, .init = _nvkm_instobj_init, .fini = _nvkm_instobj_fini, .rd32 = nv50_instobj_rd32, .wr32 = nv50_instobj_wr32, }, }; /****************************************************************************** * instmem subdev implementation *****************************************************************************/ static int nv50_instmem_fini(struct nvkm_object *object, bool suspend) { struct nv50_instmem *imem = (void *)object; imem->addr = ~0ULL; return nvkm_instmem_fini(&imem->base, suspend); } static int nv50_instmem_ctor(struct nvkm_object *parent, struct nvkm_object *engine, struct nvkm_oclass *oclass, void *data, u32 size, struct nvkm_object **pobject) { struct nv50_instmem *imem; int ret; ret = nvkm_instmem_create(parent, engine, oclass, &imem); *pobject = nv_object(imem); if (ret) return ret; spin_lock_init(&imem->lock); return 0; } struct nvkm_oclass * nv50_instmem_oclass = &(struct nvkm_instmem_impl) { .base.handle = NV_SUBDEV(INSTMEM, 0x50), .base.ofuncs = &(struct nvkm_ofuncs) { .ctor = nv50_instmem_ctor, .dtor = _nvkm_instmem_dtor, .init = _nvkm_instmem_init, .fini = nv50_instmem_fini, }, .instobj = &nv50_instobj_oclass.base, }.base;