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Message-ID: <20241023121145.1321921-5-jfalempe@redhat.com>
Date: Wed, 23 Oct 2024 14:00:12 +0200
From: Jocelyn Falempe <jfalempe@...hat.com>
To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>,
John Ogness <john.ogness@...utronix.de>,
Javier Martinez Canillas <javierm@...hat.com>,
"Guilherme G . Piccoli" <gpiccoli@...lia.com>,
bluescreen_avenger@...izon.net,
Caleb Connolly <caleb.connolly@...aro.org>,
dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org
Cc: Jocelyn Falempe <jfalempe@...hat.com>
Subject: [PATCH v5 4/6] drm/log: Color the timestamp, to improve readability
Color the timesamp prefix, similar to dmesg.
Signed-off-by: Jocelyn Falempe <jfalempe@...hat.com>
---
drivers/gpu/drm/drm_log.c | 27 +++++++++++++++++++++------
1 file changed, 21 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/drm_log.c b/drivers/gpu/drm/drm_log.c
index 226e206e8b6a3..635dff7b37ce5 100644
--- a/drivers/gpu/drm/drm_log.c
+++ b/drivers/gpu/drm/drm_log.c
@@ -42,6 +42,7 @@ struct drm_log_scanout {
u32 format;
u32 px_width;
u32 front_color;
+ u32 prefix_color;
};
struct drm_log {
@@ -97,7 +98,7 @@ static void drm_log_clear_line(struct drm_log_scanout *scanout, u32 line)
}
static void drm_log_draw_line(struct drm_log_scanout *scanout, const char *s,
- unsigned int len)
+ unsigned int len, unsigned int prefix_len)
{
struct drm_framebuffer *fb = scanout->buffer->fb;
struct iosys_map map;
@@ -114,9 +115,10 @@ static void drm_log_draw_line(struct drm_log_scanout *scanout, const char *s,
iosys_map_incr(&map, r.y1 * fb->pitches[0]);
for (i = 0; i < len && i < scanout->columns; i++) {
+ u32 color = (i < prefix_len) ? scanout->prefix_color : scanout->front_color;
src = drm_draw_get_char_bitmap(font, s[i], font_pitch);
drm_log_blit(&map, fb->pitches[0], src, font_pitch, font->height, font->width,
- 1, px_width, scanout->front_color);
+ 1, px_width, color);
iosys_map_incr(&map, font->width * px_width);
}
@@ -128,7 +130,7 @@ static void drm_log_draw_line(struct drm_log_scanout *scanout, const char *s,
}
static void drm_log_draw_new_line(struct drm_log_scanout *scanout,
- const char *s, unsigned int len)
+ const char *s, unsigned int len, unsigned int prefix_len)
{
if (scanout->line == 0) {
drm_log_clear_line(scanout, 0);
@@ -137,23 +139,35 @@ static void drm_log_draw_new_line(struct drm_log_scanout *scanout,
} else if (scanout->line + 2 < scanout->rows)
drm_log_clear_line(scanout, scanout->line + 2);
- drm_log_draw_line(scanout, s, len);
+ drm_log_draw_line(scanout, s, len, prefix_len);
}
+/*
+ * Depends on print_time() in printk.c
+ * Timestamp is written with "[%5lu.%06lu]"
+ */
+#define TS_PREFIX_LEN 13
+
static void drm_log_draw_kmsg_record(struct drm_log_scanout *scanout,
const char *s, unsigned int len)
{
+ u32 prefix_len = 0;
+
+ if (len > TS_PREFIX_LEN && s[0] == '[' && s[6] == '.' && s[TS_PREFIX_LEN] == ']')
+ prefix_len = TS_PREFIX_LEN + 1;
+
/* do not print the ending \n character */
if (s[len - 1] == '\n')
len--;
while (len > scanout->columns) {
- drm_log_draw_new_line(scanout, s, scanout->columns);
+ drm_log_draw_new_line(scanout, s, scanout->columns, prefix_len);
s += scanout->columns;
len -= scanout->columns;
+ prefix_len = 0;
}
if (len)
- drm_log_draw_new_line(scanout, s, len);
+ drm_log_draw_new_line(scanout, s, len, prefix_len);
}
static u32 drm_log_find_usable_format(struct drm_plane *plane)
@@ -193,6 +207,7 @@ static int drm_log_setup_modeset(struct drm_client_dev *client,
scanout->rows = height / scanout->font->height;
scanout->columns = width / scanout->font->width;
scanout->front_color = drm_draw_color_from_xrgb8888(0xffffff, format);
+ scanout->prefix_color = drm_draw_color_from_xrgb8888(0x4e9a06, format);
return 0;
}
--
2.47.0
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