101 lines
2.9 KiB
C
101 lines
2.9 KiB
C
/*
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* Copyright 2015 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs <bskeggs@redhat.com>
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*/
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#include "ram.h"
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int
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nvkm_ram_init(struct nvkm_ram *ram)
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{
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if (ram->func->init)
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return ram->func->init(ram);
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return 0;
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}
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void
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nvkm_ram_del(struct nvkm_ram **pram)
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{
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struct nvkm_ram *ram = *pram;
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if (ram && !WARN_ON(!ram->func)) {
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if (ram->func->dtor)
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*pram = ram->func->dtor(ram);
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nvkm_mm_fini(&ram->tags);
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nvkm_mm_fini(&ram->vram);
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kfree(*pram);
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*pram = NULL;
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}
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}
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int
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nvkm_ram_ctor(const struct nvkm_ram_func *func, struct nvkm_fb *fb,
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enum nvkm_ram_type type, u64 size, u32 tags,
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struct nvkm_ram *ram)
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{
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static const char *name[] = {
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[NVKM_RAM_TYPE_UNKNOWN] = "of unknown memory type",
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[NVKM_RAM_TYPE_STOLEN ] = "stolen system memory",
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[NVKM_RAM_TYPE_SGRAM ] = "SGRAM",
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[NVKM_RAM_TYPE_SDRAM ] = "SDRAM",
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[NVKM_RAM_TYPE_DDR1 ] = "DDR1",
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[NVKM_RAM_TYPE_DDR2 ] = "DDR2",
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[NVKM_RAM_TYPE_DDR3 ] = "DDR3",
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[NVKM_RAM_TYPE_GDDR2 ] = "GDDR2",
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[NVKM_RAM_TYPE_GDDR3 ] = "GDDR3",
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[NVKM_RAM_TYPE_GDDR4 ] = "GDDR4",
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[NVKM_RAM_TYPE_GDDR5 ] = "GDDR5",
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};
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struct nvkm_subdev *subdev = &fb->subdev;
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int ret;
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nvkm_info(subdev, "%d MiB %s\n", (int)(size >> 20), name[type]);
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ram->func = func;
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ram->fb = fb;
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ram->type = type;
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ram->size = size;
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if (!nvkm_mm_initialised(&ram->vram)) {
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ret = nvkm_mm_init(&ram->vram, 0, size >> NVKM_RAM_MM_SHIFT, 1);
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if (ret)
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return ret;
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}
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if (!nvkm_mm_initialised(&ram->tags)) {
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ret = nvkm_mm_init(&ram->tags, 0, tags ? ++tags : 0, 1);
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if (ret)
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return ret;
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nvkm_debug(subdev, "%d compression tags\n", tags);
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}
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return 0;
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}
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int
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nvkm_ram_new_(const struct nvkm_ram_func *func, struct nvkm_fb *fb,
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enum nvkm_ram_type type, u64 size, u32 tags,
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struct nvkm_ram **pram)
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{
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if (!(*pram = kzalloc(sizeof(**pram), GFP_KERNEL)))
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return -ENOMEM;
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return nvkm_ram_ctor(func, fb, type, size, tags, *pram);
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}
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