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/*
* Copyright 2015 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 <bskeggs@redhat.com>
*/
#include "ram.h"
int
nvkm_ram_init(struct nvkm_ram *ram)
{
if (ram->func->init)
return ram->func->init(ram);
return 0;
}
void
nvkm_ram_del(struct nvkm_ram **pram)
{
struct nvkm_ram *ram = *pram;
if (ram && !WARN_ON(!ram->func)) {
if (ram->func->dtor)
*pram = ram->func->dtor(ram);
nvkm_mm_fini(&ram->tags);
nvkm_mm_fini(&ram->vram);
kfree(*pram);
*pram = NULL;
}
}
int
nvkm_ram_ctor(const struct nvkm_ram_func *func, struct nvkm_fb *fb,
enum nvkm_ram_type type, u64 size, u32 tags,
struct nvkm_ram *ram)
{
static const char *name[] = {
[NVKM_RAM_TYPE_UNKNOWN] = "of unknown memory type",
[NVKM_RAM_TYPE_STOLEN ] = "stolen system memory",
[NVKM_RAM_TYPE_SGRAM ] = "SGRAM",
[NVKM_RAM_TYPE_SDRAM ] = "SDRAM",
[NVKM_RAM_TYPE_DDR1 ] = "DDR1",
[NVKM_RAM_TYPE_DDR2 ] = "DDR2",
[NVKM_RAM_TYPE_DDR3 ] = "DDR3",
[NVKM_RAM_TYPE_GDDR2 ] = "GDDR2",
[NVKM_RAM_TYPE_GDDR3 ] = "GDDR3",
[NVKM_RAM_TYPE_GDDR4 ] = "GDDR4",
[NVKM_RAM_TYPE_GDDR5 ] = "GDDR5",
};
struct nvkm_subdev *subdev = &fb->subdev;
int ret;
nvkm_info(subdev, "%d MiB %s\n", (int)(size >> 20), name[type]);
ram->func = func;
ram->fb = fb;
ram->type = type;
ram->size = size;
if (!nvkm_mm_initialised(&ram->vram)) {
ret = nvkm_mm_init(&ram->vram, 0, size >> NVKM_RAM_MM_SHIFT, 1);
if (ret)
return ret;
}
if (!nvkm_mm_initialised(&ram->tags)) {
ret = nvkm_mm_init(&ram->tags, 0, tags ? ++tags : 0, 1);
if (ret)
return ret;
nvkm_debug(subdev, "%d compression tags\n", tags);
}
return 0;
}
int
nvkm_ram_new_(const struct nvkm_ram_func *func, struct nvkm_fb *fb,
enum nvkm_ram_type type, u64 size, u32 tags,
struct nvkm_ram **pram)
{
if (!(*pram = kzalloc(sizeof(**pram), GFP_KERNEL)))
return -ENOMEM;
return nvkm_ram_ctor(func, fb, type, size, tags, *pram);
}
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