mirror of
git://nv-tegra.nvidia.com/linux-nvgpu.git
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938bea58ca
vm->gmmu_page_sizes was not initialized properly in the vgpu case, leading to gmmu map failures. Bug 1570878 Change-Id: I16c371f65d884f59d9c9f60c7acd391b917d04ed Signed-off-by: Aingara Paramakuru <aparamakuru@nvidia.com>
66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
/*
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* Tegra Virtualized GPU Platform Interface
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*
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* Copyright (c) 2014, 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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#include <linux/of_platform.h>
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#include "gk20a.h"
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#include "hal_gk20a.h"
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#include "platform_gk20a.h"
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static int gk20a_tegra_probe(struct platform_device *dev)
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{
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struct gk20a_platform *platform = gk20a_get_platform(dev);
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struct device_node *np = dev->dev.of_node;
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const __be32 *host1x_ptr;
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struct platform_device *host1x_pdev = NULL;
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host1x_ptr = of_get_property(np, "nvidia,host1x", NULL);
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if (host1x_ptr) {
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struct device_node *host1x_node =
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of_find_node_by_phandle(be32_to_cpup(host1x_ptr));
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host1x_pdev = of_find_device_by_node(host1x_node);
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if (!host1x_pdev) {
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dev_warn(&dev->dev, "host1x device not available");
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return -EPROBE_DEFER;
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}
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} else {
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host1x_pdev = to_platform_device(dev->dev.parent);
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dev_warn(&dev->dev, "host1x reference not found. assuming host1x to be parent");
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}
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platform->g->host1x_dev = host1x_pdev;
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return 0;
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}
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struct gk20a_platform vgpu_tegra_platform = {
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.has_syncpoints = true,
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/* power management configuration */
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.can_railgate = false,
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.enable_slcg = false,
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.enable_blcg = false,
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.enable_elcg = false,
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.enable_elpg = false,
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.enable_aelpg = false,
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.probe = gk20a_tegra_probe,
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.default_big_page_size = SZ_128K,
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.virtual_dev = true,
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};
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