From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c | 72 ++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c') diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c new file mode 100644 index 000000000..fbae05db4 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c @@ -0,0 +1,72 @@ +/* + * Copyright 2013 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 + +static int +nv1a_ram_create(struct nvkm_object *parent, struct nvkm_object *engine, + struct nvkm_oclass *oclass, void *data, u32 size, + struct nvkm_object **pobject) +{ + struct nvkm_fb *pfb = nvkm_fb(parent); + struct nvkm_ram *ram; + struct pci_dev *bridge; + u32 mem, mib; + int ret; + + bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 1)); + if (!bridge) { + nv_fatal(pfb, "no bridge device\n"); + return -ENODEV; + } + + ret = nvkm_ram_create(parent, engine, oclass, &ram); + *pobject = nv_object(ram); + if (ret) + return ret; + + if (nv_device(pfb)->chipset == 0x1a) { + pci_read_config_dword(bridge, 0x7c, &mem); + mib = ((mem >> 6) & 31) + 1; + } else { + pci_read_config_dword(bridge, 0x84, &mem); + mib = ((mem >> 4) & 127) + 1; + } + + ram->type = NV_MEM_TYPE_STOLEN; + ram->size = mib * 1024 * 1024; + return 0; +} + +struct nvkm_oclass +nv1a_ram_oclass = { + .handle = 0, + .ofuncs = &(struct nvkm_ofuncs) { + .ctor = nv1a_ram_create, + .dtor = _nvkm_ram_dtor, + .init = _nvkm_ram_init, + .fini = _nvkm_ram_fini, + } +}; -- cgit v1.2.3-54-g00ecf