1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
From 4d70c74659d9746502b23d055dba03d1d28ec388 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Wed, 30 Nov 2022 15:48:35 +0200
Subject: [PATCH] i915: Move list_count() to list.h as list_count_nodes() for
broader use
Some of the existing users, and definitely will be new ones, want to
count existing nodes in the list. Provide a generic API for that by
moving code from i915 to list.h.
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221130134838.23805-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpu/drm/i915/gt/intel_engine_cs.c | 15 ++-------------
include/linux/list.h | 15 +++++++++++++++
2 files changed, 17 insertions(+), 13 deletions(-)
--- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
+++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
@@ -4157,17 +4157,6 @@ void intel_execlists_show_requests(struc
spin_unlock_irqrestore(&sched_engine->lock, flags);
}
-static unsigned long list_count(struct list_head *list)
-{
- struct list_head *pos;
- unsigned long count = 0;
-
- list_for_each(pos, list)
- count++;
-
- return count;
-}
-
void intel_execlists_dump_active_requests(struct intel_engine_cs *engine,
struct i915_request *hung_rq,
struct drm_printer *m)
@@ -4178,8 +4167,8 @@ void intel_execlists_dump_active_request
intel_engine_dump_active_requests(&engine->sched_engine->requests, hung_rq, m);
- drm_printf(m, "\tOn hold?: %lu\n",
- list_count(&engine->sched_engine->hold));
+ drm_printf(m, "\tOn hold?: %zu\n",
+ list_count_nodes(&engine->sched_engine->hold));
spin_unlock_irqrestore(&engine->sched_engine->lock, flags);
}
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -656,6 +656,21 @@ static inline void list_splice_tail_init
pos = n, n = pos->prev)
/**
+ * list_count_nodes - count nodes in the list
+ * @head: the head for your list.
+ */
+static inline size_t list_count_nodes(struct list_head *head)
+{
+ struct list_head *pos;
+ size_t count = 0;
+
+ list_for_each(pos, head)
+ count++;
+
+ return count;
+}
+
+/**
* list_entry_is_head - test if the entry points to the head of the list
* @pos: the type * to cursor
* @head: the head for your list.
|
