summaryrefslogtreecommitdiff
path: root/drivers/dma/ptdma/ptdma-debugfs.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/dma/ptdma/ptdma-debugfs.c')
-rw-r--r--drivers/dma/ptdma/ptdma-debugfs.c106
1 files changed, 0 insertions, 106 deletions
diff --git a/drivers/dma/ptdma/ptdma-debugfs.c b/drivers/dma/ptdma/ptdma-debugfs.c
deleted file mode 100644
index c8307d3044a3..000000000000
--- a/drivers/dma/ptdma/ptdma-debugfs.c
+++ /dev/null
@@ -1,106 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * AMD Passthrough DMA device driver
- * -- Based on the CCP driver
- *
- * Copyright (C) 2016,2021 Advanced Micro Devices, Inc.
- *
- * Author: Sanjay R Mehta <sanju.mehta@amd.com>
- * Author: Gary R Hook <gary.hook@amd.com>
- */
-
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
-
-#include "ptdma.h"
-
-/* DebugFS helpers */
-#define RI_VERSION_NUM 0x0000003F
-
-#define RI_NUM_VQM 0x00078000
-#define RI_NVQM_SHIFT 15
-
-static int pt_debugfs_info_show(struct seq_file *s, void *p)
-{
- struct pt_device *pt = s->private;
- unsigned int regval;
-
- seq_printf(s, "Device name: %s\n", dev_name(pt->dev));
- seq_printf(s, " # Queues: %d\n", 1);
- seq_printf(s, " # Cmds: %d\n", pt->cmd_count);
-
- regval = ioread32(pt->io_regs + CMD_PT_VERSION);
-
- seq_printf(s, " Version: %d\n", regval & RI_VERSION_NUM);
- seq_puts(s, " Engines:");
- seq_puts(s, "\n");
- seq_printf(s, " Queues: %d\n", (regval & RI_NUM_VQM) >> RI_NVQM_SHIFT);
-
- return 0;
-}
-
-/*
- * Return a formatted buffer containing the current
- * statistics of queue for PTDMA
- */
-static int pt_debugfs_stats_show(struct seq_file *s, void *p)
-{
- struct pt_device *pt = s->private;
-
- seq_printf(s, "Total Interrupts Handled: %ld\n", pt->total_interrupts);
-
- return 0;
-}
-
-static int pt_debugfs_queue_show(struct seq_file *s, void *p)
-{
- struct pt_cmd_queue *cmd_q = s->private;
- unsigned int regval;
-
- if (!cmd_q)
- return 0;
-
- seq_printf(s, " Pass-Thru: %ld\n", cmd_q->total_pt_ops);
-
- regval = ioread32(cmd_q->reg_control + 0x000C);
-
- seq_puts(s, " Enabled Interrupts:");
- if (regval & INT_EMPTY_QUEUE)
- seq_puts(s, " EMPTY");
- if (regval & INT_QUEUE_STOPPED)
- seq_puts(s, " STOPPED");
- if (regval & INT_ERROR)
- seq_puts(s, " ERROR");
- if (regval & INT_COMPLETION)
- seq_puts(s, " COMPLETION");
- seq_puts(s, "\n");
-
- return 0;
-}
-
-DEFINE_SHOW_ATTRIBUTE(pt_debugfs_info);
-DEFINE_SHOW_ATTRIBUTE(pt_debugfs_queue);
-DEFINE_SHOW_ATTRIBUTE(pt_debugfs_stats);
-
-void ptdma_debugfs_setup(struct pt_device *pt)
-{
- struct pt_cmd_queue *cmd_q;
- struct dentry *debugfs_q_instance;
-
- if (!debugfs_initialized())
- return;
-
- debugfs_create_file("info", 0400, pt->dma_dev.dbg_dev_root, pt,
- &pt_debugfs_info_fops);
-
- debugfs_create_file("stats", 0400, pt->dma_dev.dbg_dev_root, pt,
- &pt_debugfs_stats_fops);
-
- cmd_q = &pt->cmd_q;
-
- debugfs_q_instance =
- debugfs_create_dir("q", pt->dma_dev.dbg_dev_root);
-
- debugfs_create_file("stats", 0400, debugfs_q_instance, cmd_q,
- &pt_debugfs_queue_fops);
-}