/*
* GK20A Graphics
*
* Copyright (c) 2011-2020, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>
#include <linux/of_address.h>
#include <linux/interrupt.h>
#include <linux/pm_runtime.h>
#include <linux/reset.h>
#include <linux/reboot.h>
#include <linux/notifier.h>
#include <linux/platform/tegra/common.h>
#include <linux/pci.h>
#include <uapi/linux/nvgpu.h>
#include <dt-bindings/soc/gm20b-fuse.h>
#include <dt-bindings/soc/gp10b-fuse.h>
#include <dt-bindings/soc/gv11b-fuse.h>
#include <soc/tegra/fuse.h>
#include <nvgpu/hal_init.h>
#include <nvgpu/dma.h>
#include <nvgpu/kmem.h>
#include <nvgpu/nvgpu_common.h>
#include <nvgpu/soc.h>
#include <nvgpu/enabled.h>
#include <nvgpu/debug.h>
#include <nvgpu/ctxsw_trace.h>
#include <nvgpu/vidmem.h>
#include <nvgpu/sim.h>
#include <nvgpu/clk_arb.h>
#include <nvgpu/timers.h>
#include <nvgpu/channel.h>
#include "platform_gk20a.h"
#include "sysfs.h"
#include "vgpu/vgpu_linux.h"
#include "scale.h"
#include "pci.h"
#include "module.h"
#include "module_usermode.h"
#include "intr.h"
#include "ioctl.h"
#include "ioctl_ctrl.h"
#include "os_linux.h"
#include "os_ops.h"
#include "ctxsw_trace.h"
#include "driver_common.h"
#include "channel.h"
#include "debug_pmgr.h"
#ifdef CONFIG_NVGPU_SUPPORT_CDE
#include "cde.h"
#endif
#define CLASS_NAME "nvidia-gpu"
/* TODO: Change to e.g. "nvidia-gpu%s" once we have symlinks in place. */
#define GK20A_WAIT_FOR_IDLE_MS 2000
#define CREATE_TRACE_POINTS
#include <trace/events/gk20a.h>
static int nvgpu_kernel_shutdown_notification(struct notifier_block *nb,
unsigned long event, void *unused)
{
struct gk20a *g = container_of(nb, struct gk20a, nvgpu_reboot_nb);
__nvgpu_set_enabled(g, NVGPU_KERNEL_IS_DYING, true);
return NOTIFY_DONE;
}
struct device_node *nvgpu_get_node(struct gk20a *g)
{
struct device *dev = dev_from_gk20a(g);
if (dev_is_pci(dev)) {
struct pci_bus *bus = to_pci_dev(dev)->bus;
while (!pci_is_root_bus(bus))
bus = bus->parent;
return bus->bridge->parent->of_node;
}
return dev->of_node;
}
void gk20a_busy_noresume(struct gk20a *g)
{
pm_
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