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accel/habanalabs: refactor debugfs init
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Make it easier to later add support for accel device.

Signed-off-by: Oded Gabbay <[email protected]>
Reviewed-by: Tomer Tayar <[email protected]>
Reviewed-by: Stanislaw Gruszka <[email protected]>
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@ogabbay
ogabbay committed Mar 15, 2023
1 parent 323adae commit 271b2d5
Showing 1 changed file with 68 additions and 61 deletions.
129 changes: 68 additions & 61 deletions drivers/accel/habanalabs/common/debugfs.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1583,209 +1583,216 @@ static const struct file_operations hl_debugfs_fops = {
.release = single_release,
};

static void add_secured_nodes(struct hl_dbg_device_entry *dev_entry)
static void add_secured_nodes(struct hl_dbg_device_entry *dev_entry, struct dentry *root)
{
debugfs_create_u8("i2c_bus",
0644,
dev_entry->root,
root,
&dev_entry->i2c_bus);

debugfs_create_u8("i2c_addr",
0644,
dev_entry->root,
root,
&dev_entry->i2c_addr);

debugfs_create_u8("i2c_reg",
0644,
dev_entry->root,
root,
&dev_entry->i2c_reg);

debugfs_create_u8("i2c_len",
0644,
dev_entry->root,
root,
&dev_entry->i2c_len);

debugfs_create_file("i2c_data",
0644,
dev_entry->root,
root,
dev_entry,
&hl_i2c_data_fops);

debugfs_create_file("led0",
0200,
dev_entry->root,
root,
dev_entry,
&hl_led0_fops);

debugfs_create_file("led1",
0200,
dev_entry->root,
root,
dev_entry,
&hl_led1_fops);

debugfs_create_file("led2",
0200,
dev_entry->root,
root,
dev_entry,
&hl_led2_fops);
}

void hl_debugfs_add_device(struct hl_device *hdev)
static void add_files_to_device(struct hl_device *hdev, struct hl_dbg_device_entry *dev_entry,
struct dentry *root)
{
struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
int count = ARRAY_SIZE(hl_debugfs_list);
struct hl_debugfs_entry *entry;
int i;

dev_entry->hdev = hdev;
dev_entry->entry_arr = kmalloc_array(count,
sizeof(struct hl_debugfs_entry),
GFP_KERNEL);
if (!dev_entry->entry_arr)
return;

dev_entry->data_dma_blob_desc.size = 0;
dev_entry->data_dma_blob_desc.data = NULL;
dev_entry->mon_dump_blob_desc.size = 0;
dev_entry->mon_dump_blob_desc.data = NULL;

INIT_LIST_HEAD(&dev_entry->file_list);
INIT_LIST_HEAD(&dev_entry->cb_list);
INIT_LIST_HEAD(&dev_entry->cs_list);
INIT_LIST_HEAD(&dev_entry->cs_job_list);
INIT_LIST_HEAD(&dev_entry->userptr_list);
INIT_LIST_HEAD(&dev_entry->ctx_mem_hash_list);
mutex_init(&dev_entry->file_mutex);
init_rwsem(&dev_entry->state_dump_sem);
spin_lock_init(&dev_entry->cb_spinlock);
spin_lock_init(&dev_entry->cs_spinlock);
spin_lock_init(&dev_entry->cs_job_spinlock);
spin_lock_init(&dev_entry->userptr_spinlock);
spin_lock_init(&dev_entry->ctx_mem_hash_spinlock);

dev_entry->root = debugfs_create_dir(dev_name(hdev->dev),
hl_debug_root);

debugfs_create_x64("memory_scrub_val",
0644,
dev_entry->root,
root,
&hdev->memory_scrub_val);

debugfs_create_file("memory_scrub",
0200,
dev_entry->root,
root,
dev_entry,
&hl_mem_scrub_fops);

debugfs_create_x64("addr",
0644,
dev_entry->root,
root,
&dev_entry->addr);

debugfs_create_file("data32",
0644,
dev_entry->root,
root,
dev_entry,
&hl_data32b_fops);

debugfs_create_file("data64",
0644,
dev_entry->root,
root,
dev_entry,
&hl_data64b_fops);

debugfs_create_file("set_power_state",
0200,
dev_entry->root,
root,
dev_entry,
&hl_power_fops);

debugfs_create_file("device",
0200,
dev_entry->root,
root,
dev_entry,
&hl_device_fops);

debugfs_create_file("clk_gate",
0200,
dev_entry->root,
root,
dev_entry,
&hl_clk_gate_fops);

debugfs_create_file("stop_on_err",
0644,
dev_entry->root,
root,
dev_entry,
&hl_stop_on_err_fops);

debugfs_create_file("dump_security_violations",
0644,
dev_entry->root,
root,
dev_entry,
&hl_security_violations_fops);

debugfs_create_file("dump_razwi_events",
0644,
dev_entry->root,
root,
dev_entry,
&hl_razwi_check_fops);

debugfs_create_file("dma_size",
0200,
dev_entry->root,
root,
dev_entry,
&hl_dma_size_fops);

debugfs_create_blob("data_dma",
0400,
dev_entry->root,
root,
&dev_entry->data_dma_blob_desc);

debugfs_create_file("monitor_dump_trig",
0200,
dev_entry->root,
root,
dev_entry,
&hl_monitor_dump_fops);

debugfs_create_blob("monitor_dump",
0400,
dev_entry->root,
root,
&dev_entry->mon_dump_blob_desc);

debugfs_create_x8("skip_reset_on_timeout",
0644,
dev_entry->root,
root,
&hdev->reset_info.skip_reset_on_timeout);

debugfs_create_file("state_dump",
0600,
dev_entry->root,
root,
dev_entry,
&hl_state_dump_fops);

debugfs_create_file("timeout_locked",
0644,
dev_entry->root,
root,
dev_entry,
&hl_timeout_locked_fops);

debugfs_create_u32("device_release_watchdog_timeout",
0644,
dev_entry->root,
root,
&hdev->device_release_watchdog_timeout_sec);

for (i = 0, entry = dev_entry->entry_arr ; i < count ; i++, entry++) {
debugfs_create_file(hl_debugfs_list[i].name,
0444,
dev_entry->root,
root,
entry,
&hl_debugfs_fops);
entry->info_ent = &hl_debugfs_list[i];
entry->dev_entry = dev_entry;
}
}

void hl_debugfs_add_device(struct hl_device *hdev)
{
struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
int count = ARRAY_SIZE(hl_debugfs_list);

dev_entry->hdev = hdev;
dev_entry->entry_arr = kmalloc_array(count,
sizeof(struct hl_debugfs_entry),
GFP_KERNEL);
if (!dev_entry->entry_arr)
return;

dev_entry->data_dma_blob_desc.size = 0;
dev_entry->data_dma_blob_desc.data = NULL;
dev_entry->mon_dump_blob_desc.size = 0;
dev_entry->mon_dump_blob_desc.data = NULL;

INIT_LIST_HEAD(&dev_entry->file_list);
INIT_LIST_HEAD(&dev_entry->cb_list);
INIT_LIST_HEAD(&dev_entry->cs_list);
INIT_LIST_HEAD(&dev_entry->cs_job_list);
INIT_LIST_HEAD(&dev_entry->userptr_list);
INIT_LIST_HEAD(&dev_entry->ctx_mem_hash_list);
mutex_init(&dev_entry->file_mutex);
init_rwsem(&dev_entry->state_dump_sem);
spin_lock_init(&dev_entry->cb_spinlock);
spin_lock_init(&dev_entry->cs_spinlock);
spin_lock_init(&dev_entry->cs_job_spinlock);
spin_lock_init(&dev_entry->userptr_spinlock);
spin_lock_init(&dev_entry->ctx_mem_hash_spinlock);

dev_entry->root = debugfs_create_dir(dev_name(hdev->dev),
hl_debug_root);

add_files_to_device(hdev, dev_entry, dev_entry->root);
if (!hdev->asic_prop.fw_security_enabled)
add_secured_nodes(dev_entry);
add_secured_nodes(dev_entry, dev_entry->root);
}

void hl_debugfs_remove_device(struct hl_device *hdev)
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