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