166 lines
5.3 KiB
C
166 lines
5.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Qualcomm Technologies HIDMA debug file
|
|
*
|
|
* Copyright (c) 2015-2016, The Linux Foundation. All rights reserved.
|
|
*/
|
|
|
|
#include <linux/debugfs.h>
|
|
#include <linux/device.h>
|
|
#include <linux/list.h>
|
|
#include <linux/pm_runtime.h>
|
|
|
|
#include "hidma.h"
|
|
|
|
static void hidma_ll_chstats(struct seq_file *s, void *llhndl, u32 tre_ch)
|
|
{
|
|
struct hidma_lldev *lldev = llhndl;
|
|
struct hidma_tre *tre;
|
|
u32 length;
|
|
dma_addr_t src_start;
|
|
dma_addr_t dest_start;
|
|
u32 *tre_local;
|
|
|
|
if (tre_ch >= lldev->nr_tres) {
|
|
dev_err(lldev->dev, "invalid TRE number in chstats:%d", tre_ch);
|
|
return;
|
|
}
|
|
tre = &lldev->trepool[tre_ch];
|
|
seq_printf(s, "------Channel %d -----\n", tre_ch);
|
|
seq_printf(s, "allocated=%d\n", atomic_read(&tre->allocated));
|
|
seq_printf(s, "queued = 0x%x\n", tre->queued);
|
|
seq_printf(s, "err_info = 0x%x\n", tre->err_info);
|
|
seq_printf(s, "err_code = 0x%x\n", tre->err_code);
|
|
seq_printf(s, "status = 0x%x\n", tre->status);
|
|
seq_printf(s, "idx = 0x%x\n", tre->idx);
|
|
seq_printf(s, "dma_sig = 0x%x\n", tre->dma_sig);
|
|
seq_printf(s, "dev_name=%s\n", tre->dev_name);
|
|
seq_printf(s, "callback=%p\n", tre->callback);
|
|
seq_printf(s, "data=%p\n", tre->data);
|
|
seq_printf(s, "tre_index = 0x%x\n", tre->tre_index);
|
|
|
|
tre_local = &tre->tre_local[0];
|
|
src_start = tre_local[HIDMA_TRE_SRC_LOW_IDX];
|
|
src_start = ((u64) (tre_local[HIDMA_TRE_SRC_HI_IDX]) << 32) + src_start;
|
|
dest_start = tre_local[HIDMA_TRE_DEST_LOW_IDX];
|
|
dest_start += ((u64) (tre_local[HIDMA_TRE_DEST_HI_IDX]) << 32);
|
|
length = tre_local[HIDMA_TRE_LEN_IDX];
|
|
|
|
seq_printf(s, "src=%pap\n", &src_start);
|
|
seq_printf(s, "dest=%pap\n", &dest_start);
|
|
seq_printf(s, "length = 0x%x\n", length);
|
|
}
|
|
|
|
static void hidma_ll_devstats(struct seq_file *s, void *llhndl)
|
|
{
|
|
struct hidma_lldev *lldev = llhndl;
|
|
|
|
seq_puts(s, "------Device -----\n");
|
|
seq_printf(s, "lldev init = 0x%x\n", lldev->initialized);
|
|
seq_printf(s, "trch_state = 0x%x\n", lldev->trch_state);
|
|
seq_printf(s, "evch_state = 0x%x\n", lldev->evch_state);
|
|
seq_printf(s, "chidx = 0x%x\n", lldev->chidx);
|
|
seq_printf(s, "nr_tres = 0x%x\n", lldev->nr_tres);
|
|
seq_printf(s, "trca=%p\n", lldev->trca);
|
|
seq_printf(s, "tre_ring=%p\n", lldev->tre_ring);
|
|
seq_printf(s, "tre_ring_handle=%pap\n", &lldev->tre_dma);
|
|
seq_printf(s, "tre_ring_size = 0x%x\n", lldev->tre_ring_size);
|
|
seq_printf(s, "tre_processed_off = 0x%x\n", lldev->tre_processed_off);
|
|
seq_printf(s, "pending_tre_count=%d\n",
|
|
atomic_read(&lldev->pending_tre_count));
|
|
seq_printf(s, "evca=%p\n", lldev->evca);
|
|
seq_printf(s, "evre_ring=%p\n", lldev->evre_ring);
|
|
seq_printf(s, "evre_ring_handle=%pap\n", &lldev->evre_dma);
|
|
seq_printf(s, "evre_ring_size = 0x%x\n", lldev->evre_ring_size);
|
|
seq_printf(s, "evre_processed_off = 0x%x\n", lldev->evre_processed_off);
|
|
seq_printf(s, "tre_write_offset = 0x%x\n", lldev->tre_write_offset);
|
|
}
|
|
|
|
/*
|
|
* hidma_chan_show: display HIDMA channel statistics
|
|
*
|
|
* Display the statistics for the current HIDMA virtual channel device.
|
|
*/
|
|
static int hidma_chan_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct hidma_chan *mchan = s->private;
|
|
struct hidma_desc *mdesc;
|
|
struct hidma_dev *dmadev = mchan->dmadev;
|
|
|
|
pm_runtime_get_sync(dmadev->ddev.dev);
|
|
seq_printf(s, "paused=%u\n", mchan->paused);
|
|
seq_printf(s, "dma_sig=%u\n", mchan->dma_sig);
|
|
seq_puts(s, "prepared\n");
|
|
list_for_each_entry(mdesc, &mchan->prepared, node)
|
|
hidma_ll_chstats(s, mchan->dmadev->lldev, mdesc->tre_ch);
|
|
|
|
seq_puts(s, "active\n");
|
|
list_for_each_entry(mdesc, &mchan->active, node)
|
|
hidma_ll_chstats(s, mchan->dmadev->lldev, mdesc->tre_ch);
|
|
|
|
seq_puts(s, "completed\n");
|
|
list_for_each_entry(mdesc, &mchan->completed, node)
|
|
hidma_ll_chstats(s, mchan->dmadev->lldev, mdesc->tre_ch);
|
|
|
|
hidma_ll_devstats(s, mchan->dmadev->lldev);
|
|
pm_runtime_mark_last_busy(dmadev->ddev.dev);
|
|
pm_runtime_put_autosuspend(dmadev->ddev.dev);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* hidma_dma_show: display HIDMA device info
|
|
*
|
|
* Display the info for the current HIDMA device.
|
|
*/
|
|
static int hidma_dma_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct hidma_dev *dmadev = s->private;
|
|
resource_size_t sz;
|
|
|
|
seq_printf(s, "nr_descriptors=%d\n", dmadev->nr_descriptors);
|
|
seq_printf(s, "dev_trca=%p\n", &dmadev->dev_trca);
|
|
seq_printf(s, "dev_trca_phys=%pa\n", &dmadev->trca_resource->start);
|
|
sz = resource_size(dmadev->trca_resource);
|
|
seq_printf(s, "dev_trca_size=%pa\n", &sz);
|
|
seq_printf(s, "dev_evca=%p\n", &dmadev->dev_evca);
|
|
seq_printf(s, "dev_evca_phys=%pa\n", &dmadev->evca_resource->start);
|
|
sz = resource_size(dmadev->evca_resource);
|
|
seq_printf(s, "dev_evca_size=%pa\n", &sz);
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(hidma_chan);
|
|
DEFINE_SHOW_ATTRIBUTE(hidma_dma);
|
|
|
|
void hidma_debug_uninit(struct hidma_dev *dmadev)
|
|
{
|
|
debugfs_remove_recursive(dmadev->debugfs);
|
|
}
|
|
|
|
void hidma_debug_init(struct hidma_dev *dmadev)
|
|
{
|
|
int chidx = 0;
|
|
struct list_head *position = NULL;
|
|
struct dentry *dir;
|
|
|
|
dmadev->debugfs = debugfs_create_dir(dev_name(dmadev->ddev.dev), NULL);
|
|
|
|
/* walk through the virtual channel list */
|
|
list_for_each(position, &dmadev->ddev.channels) {
|
|
struct hidma_chan *chan;
|
|
|
|
chan = list_entry(position, struct hidma_chan,
|
|
chan.device_node);
|
|
sprintf(chan->dbg_name, "chan%d", chidx);
|
|
dir = debugfs_create_dir(chan->dbg_name,
|
|
dmadev->debugfs);
|
|
debugfs_create_file("stats", S_IRUGO, dir, chan,
|
|
&hidma_chan_fops);
|
|
chidx++;
|
|
}
|
|
|
|
debugfs_create_file("stats", S_IRUGO, dmadev->debugfs, dmadev,
|
|
&hidma_dma_fops);
|
|
}
|