]>
git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/blob - arch/powerpc/platforms/powernv/vas-debug.c
1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright 2016-17 IBM Corp.
6 #define pr_fmt(fmt) "vas: " fmt
8 #include <linux/types.h>
9 #include <linux/slab.h>
10 #include <linux/debugfs.h>
11 #include <linux/seq_file.h>
14 static struct dentry
*vas_debugfs
;
16 static char *cop_to_str(int cop
)
19 case VAS_COP_TYPE_FAULT
: return "Fault";
20 case VAS_COP_TYPE_842
: return "NX-842 Normal Priority";
21 case VAS_COP_TYPE_842_HIPRI
: return "NX-842 High Priority";
22 case VAS_COP_TYPE_GZIP
: return "NX-GZIP Normal Priority";
23 case VAS_COP_TYPE_GZIP_HIPRI
: return "NX-GZIP High Priority";
24 case VAS_COP_TYPE_FTW
: return "Fast Thread-wakeup";
25 default: return "Unknown";
29 static int info_show(struct seq_file
*s
, void *private)
31 struct vas_window
*window
= s
->private;
33 mutex_lock(&vas_mutex
);
35 /* ensure window is not unmapped */
36 if (!window
->hvwc_map
)
39 seq_printf(s
, "Type: %s, %s\n", cop_to_str(window
->cop
),
40 window
->tx_win
? "Send" : "Receive");
41 seq_printf(s
, "Pid : %d\n", window
->pid
);
44 mutex_unlock(&vas_mutex
);
48 DEFINE_SHOW_ATTRIBUTE(info
);
50 static inline void print_reg(struct seq_file
*s
, struct vas_window
*win
,
53 seq_printf(s
, "0x%016llx %s\n", read_hvwc_reg(win
, name
, reg
), name
);
56 static int hvwc_show(struct seq_file
*s
, void *private)
58 struct vas_window
*window
= s
->private;
60 mutex_lock(&vas_mutex
);
62 /* ensure window is not unmapped */
63 if (!window
->hvwc_map
)
66 print_reg(s
, window
, VREG(LPID
));
67 print_reg(s
, window
, VREG(PID
));
68 print_reg(s
, window
, VREG(XLATE_MSR
));
69 print_reg(s
, window
, VREG(XLATE_LPCR
));
70 print_reg(s
, window
, VREG(XLATE_CTL
));
71 print_reg(s
, window
, VREG(AMR
));
72 print_reg(s
, window
, VREG(SEIDR
));
73 print_reg(s
, window
, VREG(FAULT_TX_WIN
));
74 print_reg(s
, window
, VREG(OSU_INTR_SRC_RA
));
75 print_reg(s
, window
, VREG(HV_INTR_SRC_RA
));
76 print_reg(s
, window
, VREG(PSWID
));
77 print_reg(s
, window
, VREG(LFIFO_BAR
));
78 print_reg(s
, window
, VREG(LDATA_STAMP_CTL
));
79 print_reg(s
, window
, VREG(LDMA_CACHE_CTL
));
80 print_reg(s
, window
, VREG(LRFIFO_PUSH
));
81 print_reg(s
, window
, VREG(CURR_MSG_COUNT
));
82 print_reg(s
, window
, VREG(LNOTIFY_AFTER_COUNT
));
83 print_reg(s
, window
, VREG(LRX_WCRED
));
84 print_reg(s
, window
, VREG(LRX_WCRED_ADDER
));
85 print_reg(s
, window
, VREG(TX_WCRED
));
86 print_reg(s
, window
, VREG(TX_WCRED_ADDER
));
87 print_reg(s
, window
, VREG(LFIFO_SIZE
));
88 print_reg(s
, window
, VREG(WINCTL
));
89 print_reg(s
, window
, VREG(WIN_STATUS
));
90 print_reg(s
, window
, VREG(WIN_CTX_CACHING_CTL
));
91 print_reg(s
, window
, VREG(TX_RSVD_BUF_COUNT
));
92 print_reg(s
, window
, VREG(LRFIFO_WIN_PTR
));
93 print_reg(s
, window
, VREG(LNOTIFY_CTL
));
94 print_reg(s
, window
, VREG(LNOTIFY_PID
));
95 print_reg(s
, window
, VREG(LNOTIFY_LPID
));
96 print_reg(s
, window
, VREG(LNOTIFY_TID
));
97 print_reg(s
, window
, VREG(LNOTIFY_SCOPE
));
98 print_reg(s
, window
, VREG(NX_UTIL_ADDER
));
100 mutex_unlock(&vas_mutex
);
104 DEFINE_SHOW_ATTRIBUTE(hvwc
);
106 void vas_window_free_dbgdir(struct vas_window
*window
)
108 if (window
->dbgdir
) {
109 debugfs_remove_recursive(window
->dbgdir
);
110 kfree(window
->dbgname
);
111 window
->dbgdir
= NULL
;
112 window
->dbgname
= NULL
;
116 void vas_window_init_dbgdir(struct vas_window
*window
)
118 struct dentry
*f
, *d
;
120 if (!window
->vinst
->dbgdir
)
123 window
->dbgname
= kzalloc(16, GFP_KERNEL
);
124 if (!window
->dbgname
)
127 snprintf(window
->dbgname
, 16, "w%d", window
->winid
);
129 d
= debugfs_create_dir(window
->dbgname
, window
->vinst
->dbgdir
);
135 f
= debugfs_create_file("info", 0444, d
, window
, &info_fops
);
139 f
= debugfs_create_file("hvwc", 0444, d
, window
, &hvwc_fops
);
146 debugfs_remove_recursive(window
->dbgdir
);
147 window
->dbgdir
= NULL
;
150 kfree(window
->dbgname
);
151 window
->dbgname
= NULL
;
154 void vas_instance_init_dbgdir(struct vas_instance
*vinst
)
162 vinst
->dbgname
= kzalloc(16, GFP_KERNEL
);
166 snprintf(vinst
->dbgname
, 16, "v%d", vinst
->vas_id
);
168 d
= debugfs_create_dir(vinst
->dbgname
, vas_debugfs
);
176 kfree(vinst
->dbgname
);
177 vinst
->dbgname
= NULL
;
178 vinst
->dbgdir
= NULL
;
182 * Set up the "root" VAS debugfs dir. Return if we already set it up
183 * (or failed to) in an earlier instance of VAS.
185 void vas_init_dbgdir(void)
187 static bool first_time
= true;
193 vas_debugfs
= debugfs_create_dir("vas", NULL
);
194 if (IS_ERR(vas_debugfs
))