mirror of
git://nv-tegra.nvidia.com/linux-nv-oot.git
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872cead7b6
1. Update Host1x-Syncpt - add syncpt-list in syncpoint-pool structure. - add exported "host1x-syncpt-*" interface and supporting private interface. 2. Update Host1x-NvHost - add support for nvhost-syncpt and nvhost-client interface and supporting private interface. - falcon and pm interface not supported 3. Update Host1x-Fence - add exported "host1x-fence-*" interface and supporting private interface. 4. Add Host1x-Poll - Per Pool polling workequeue created - add poll supporting private interface. 5. Add new IOCTL Jira HOSTX-5514 Change-Id: I187fa7ed89a3479e51b79f9d8d438ede75e1a36a Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3136834 Tested-by: Amitabh Dutta <amitabhd@nvidia.com> Reviewed-by: Bitan Biswas <bbiswas@nvidia.com> GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com> Reviewed-by: Amitabh Dutta <amitabhd@nvidia.com>
137 lines
3.3 KiB
C
137 lines
3.3 KiB
C
/*
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* SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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* SPDX-License-Identifier: GPL-2.0-only
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*/
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#include <linux/delay.h>
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#include <linux/debugfs.h>
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#include <linux/pm_runtime.h>
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#include <linux/seq_file.h>
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#include <linux/uaccess.h>
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#include <linux/io.h>
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#include "dev.h"
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#include "debug.h"
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#include "include/linux/symbol-emu.h"
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void host1x_debug_output(struct output *o, const char *fmt, ...)
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{
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va_list args;
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int len;
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va_start(args, fmt);
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len = vsnprintf(o->buf, sizeof(o->buf), fmt, args);
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va_end(args);
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o->fn(o->ctx, o->buf, len, false);
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}
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void host1x_debug_cont(struct output *o, const char *fmt, ...)
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{
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va_list args;
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int len;
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va_start(args, fmt);
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len = vsnprintf(o->buf, sizeof(o->buf), fmt, args);
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va_end(args);
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o->fn(o->ctx, o->buf, len, true);
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}
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static void show_syncpts(struct host1x *m, struct output *o, bool show_all)
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{
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unsigned long irqflags;
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struct list_head *pos;
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unsigned int i;
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host1x_debug_output(o, "---- Emulated Syncpts ----\n");
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for (i = 0; i < host1x_syncpt_nb_pts(m); i++) {
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u32 max = HOST1X_EMU_EXPORT_CALL(host1x_syncpt_read_max(m->syncpt + i));
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u32 min = host1x_syncpt_load(m->syncpt + i);
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unsigned int waiters = 0;
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spin_lock_irqsave(&m->syncpt[i].fences.lock, irqflags);
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list_for_each(pos, &m->syncpt[i].fences.list)
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waiters++;
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spin_unlock_irqrestore(&m->syncpt[i].fences.lock, irqflags);
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if (!kref_read(&m->syncpt[i].ref))
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continue;
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if (!min && !max && !waiters)
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continue;
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host1x_debug_output(o,
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"id %u (%s) min %d max %d (%d waiters)\n",
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i, m->syncpt[i].name, min, max, waiters);
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}
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host1x_debug_output(o, "\n");
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}
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static int host1x_debug_show(struct seq_file *s, void *unused)
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{
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struct output o = {
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.fn = write_to_seqfile,
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.ctx = s
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};
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show_syncpts(s->private, &o, false);
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return 0;
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}
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void host1x_debug_dump_syncpts(struct host1x *host1x)
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{
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struct output o = {
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.fn = write_to_printk
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};
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show_syncpts(host1x, &o, false);
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}
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static int host1x_debug_open(struct inode *inode, struct file *file)
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{
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return single_open(file, host1x_debug_show, inode->i_private);
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}
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static const struct file_operations host1x_debug_fops = {
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.open = host1x_debug_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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static void host1x_debugfs_init(struct host1x *host1x)
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{
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struct dentry *de;
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char dir_name[64];
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int numa_node = dev_to_node(host1x->dev);
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if (numa_node != NUMA_NO_NODE)
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sprintf(dir_name, "tegra-host1x-emu.%d", numa_node);
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else
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sprintf(dir_name, "tegra-host1x-emu");
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de = debugfs_create_dir(dir_name, NULL);
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host1x->debugfs = de;
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/* Status File*/
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debugfs_create_file("status", S_IRUGO, de, host1x, &host1x_debug_fops);
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}
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static void host1x_debugfs_exit(struct host1x *host1x)
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{
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debugfs_remove_recursive(host1x->debugfs);
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}
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void host1x_debug_init(struct host1x *host1x)
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{
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if (IS_ENABLED(CONFIG_DEBUG_FS)) {
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host1x_debugfs_init(host1x);
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}
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}
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void host1x_debug_deinit(struct host1x *host1x)
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{
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if (IS_ENABLED(CONFIG_DEBUG_FS))
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host1x_debugfs_exit(host1x);
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}
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