From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
To: barebox@lists.infradead.org
Subject: [PATCH 3/3] fbcon: use __iowrite{32/64} to speedup the framebuffer console scrolling
Date: Thu, 9 Mar 2017 11:31:11 +0100 [thread overview]
Message-ID: <1489055471-12836-3-git-send-email-plagnioj@jcrosoft.com> (raw)
In-Reply-To: <1489055471-12836-1-git-send-email-plagnioj@jcrosoft.com>
this devide the time by 4 on x86
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
drivers/video/fbconsole.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/video/fbconsole.c b/drivers/video/fbconsole.c
index b261f1704..b5e951e23 100644
--- a/drivers/video/fbconsole.c
+++ b/drivers/video/fbconsole.c
@@ -6,6 +6,7 @@
#include <gui/image_renderer.h>
#include <gui/graphic_utils.h>
#include <linux/font.h>
+#include <linux/io.h>
enum state_t {
LIT, /* Literal input */
@@ -202,7 +203,7 @@ static void printchar(struct fbc_priv *priv, int c)
buf = gui_screen_render_buffer(priv->sc);
- memcpy(buf, buf + line_height, line_height * priv->rows);
+ __iowrite64_copy(buf, buf + line_height, (line_height * priv->rows) >> 2);
memset(buf + line_height * priv->rows, 0, line_height);
gu_screen_blit(priv->sc);
--
2.11.0
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next prev parent reply other threads:[~2017-03-09 10:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-09 10:31 [PATCH 1/3] import linux __iowrite32/64_copy support Jean-Christophe PLAGNIOL-VILLARD
2017-03-09 10:31 ` [PATCH 2/3] x86: add __raw_read{b,w,l,q} and __raw_write{b,w,l,q} Jean-Christophe PLAGNIOL-VILLARD
2017-03-09 10:31 ` Jean-Christophe PLAGNIOL-VILLARD [this message]
2017-03-10 7:00 ` [PATCH 3/3] fbcon: use __iowrite{32/64} to speedup the framebuffer console scrolling Sascha Hauer
2017-03-10 13:58 ` Jean-Christophe PLAGNIOL-VILLARD
2017-03-10 14:30 ` Jean-Christophe PLAGNIOL-VILLARD
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