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/*
* Copyright 2023 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.
*/
#include "priv.h"
#include "ram.h"
#include <subdev/gsp.h>
static const struct nvkm_ram_func
r535_fb_ram = {
};
static int
r535_fb_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
{
struct nvkm_gsp *gsp = fb->subdev.device->gsp;
struct nvkm_ram *ram;
int ret;
if (!(ram = *pram = kzalloc(sizeof(*ram), GFP_KERNEL)))
return -ENOMEM;
ram->func = &r535_fb_ram;
ram->fb = fb;
ram->type = NVKM_RAM_TYPE_UNKNOWN; /*TODO: pull this from GSP. */
ram->size = gsp->fb.size;
ram->stolen = false;
mutex_init(&ram->mutex);
for (int i = 0; i < gsp->fb.region_nr; i++) {
ret = nvkm_mm_init(&ram->vram, NVKM_RAM_MM_NORMAL,
gsp->fb.region[i].addr >> NVKM_RAM_MM_SHIFT,
gsp->fb.region[i].size >> NVKM_RAM_MM_SHIFT,
1);
if (ret)
return ret;
}
return 0;
}
static void *
r535_fb_dtor(struct nvkm_fb *fb)
{
kfree(fb->func);
return fb;
}
int
r535_fb_new(const struct nvkm_fb_func *hw,
struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
{
struct nvkm_fb_func *rm;
int ret;
if (!(rm = kzalloc(sizeof(*rm), GFP_KERNEL)))
return -ENOMEM;
rm->dtor = r535_fb_dtor;
rm->sysmem.flush_page_init = hw->sysmem.flush_page_init;
rm->vidmem.size = hw->vidmem.size;
rm->ram_new = r535_fb_ram_new;
ret = nvkm_fb_new_(rm, device, type, inst, pfb);
if (ret)
kfree(rm);
return ret;
}
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