78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
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/*
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* Tegra Graphics Host Chip support module
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*
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* Copyright (c) 2012-2017, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/errno.h>
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#include <linux/types.h>
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#include <linux/bug.h>
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#include <linux/slab.h>
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#include <soc/tegra/chip-id.h>
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#include <linux/version.h>
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#if defined(CONFIG_ARCH_TEGRA_210_SOC) || LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0)
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#include <soc/tegra/fuse.h>
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#endif
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#include "host1x/host1x.h"
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#include "chip_support.h"
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#include "t124/t124.h"
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#include "t210/t210.h"
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static struct nvhost_chip_support *nvhost_chip_ops;
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struct nvhost_chip_support *nvhost_get_chip_ops(void)
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{
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return nvhost_chip_ops;
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}
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int nvhost_init_chip_support(struct nvhost_master *host)
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{
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int err = 0;
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if (nvhost_chip_ops == NULL) {
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nvhost_chip_ops = kzalloc(sizeof(*nvhost_chip_ops), GFP_KERNEL);
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if (nvhost_chip_ops == NULL) {
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pr_err("%s: Cannot allocate nvhost_chip_support\n",
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__func__);
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return 0;
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}
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}
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if (!host->info.initialize_chip_support)
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return -ENODEV;
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err = host->info.initialize_chip_support(host, nvhost_chip_ops);
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return err;
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}
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bool nvhost_is_124(void)
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{
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return tegra_get_chip_id() == TEGRA124 ||
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tegra_get_chip_id() == TEGRA132;
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}
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bool nvhost_is_210(void)
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{
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return tegra_get_chip_id() == TEGRA210;
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}
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bool nvhost_is_186(void)
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{
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return tegra_get_chip_id() == TEGRA186;
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}
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