diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/fb/ramnvaa.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/fb/ramnvaa.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvaa.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvaa.c new file mode 100644 index 0000000..00f2ca7 --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvaa.c @@ -0,0 +1,66 @@ +/* + * 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 "nv50.h" + +static int +nvaa_ram_ctor(struct nouveau_object *parent, struct nouveau_object *engine, + struct nouveau_oclass *oclass, void *data, u32 datasize, + struct nouveau_object **pobject) +{ + const u32 rsvd_head = ( 256 * 1024) >> 12; /* vga memory */ + const u32 rsvd_tail = (1024 * 1024) >> 12; /* vbios etc */ + struct nouveau_fb *pfb = nouveau_fb(parent); + struct nouveau_ram *ram; + int ret; + + ret = nouveau_ram_create(parent, engine, oclass, &ram); + *pobject = nv_object(ram); + if (ret) + return ret; + + ram->size = nv_rd32(pfb, 0x10020c); + ram->size = (ram->size & 0xffffff00) | ((ram->size & 0x000000ff) << 32); + + ret = nouveau_mm_init(&pfb->vram, rsvd_head, (ram->size >> 12) - + (rsvd_head + rsvd_tail), 1); + if (ret) + return ret; + + ram->type = NV_MEM_TYPE_STOLEN; + ram->stolen = (u64)nv_rd32(pfb, 0x100e10) << 12; + ram->get = nv50_ram_get; + ram->put = nv50_ram_put; + return 0; +} + +struct nouveau_oclass +nvaa_ram_oclass = { + .ofuncs = &(struct nouveau_ofuncs) { + .ctor = nvaa_ram_ctor, + .dtor = _nouveau_ram_dtor, + .init = _nouveau_ram_init, + .fini = _nouveau_ram_fini, + }, +}; |