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Code Issues Releases Packages Activity
linux/drivers/video/fbdev
History
Mikulas Patocka 53cecba9b0 mach64: fix image corruption due to reading accelerator registers 
commit c09bcc91bb upstream.

Reading the registers without waiting for engine idle returns
unpredictable values. These unpredictable values result in display
corruption - if atyfb_imageblit reads the content of DP_PIX_WIDTH with the
bit DP_HOST_TRIPLE_EN set (from previous invocation), the driver would
never ever clear the bit, resulting in display corruption.

We don't want to wait for idle because it would degrade performance, so
this patch modifies the driver so that it never reads accelerator
registers.

HOST_CNTL doesn't have to be read, we can just write it with
HOST_BYTE_ALIGN because no other part of the driver cares if
HOST_BYTE_ALIGN is set.

DP_PIX_WIDTH is written in the functions atyfb_copyarea and atyfb_fillrect
with the default value and in atyfb_imageblit with the value set according
to the source image data.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Ville Syrjälä <syrjala@sci.fi>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
History 2019-02-11 17:53:28 +00:00
..
aty mach64: fix image corruption due to reading accelerator registers 2019-02-11 17:53:28 +00:00
core fb: fix lost console when the user unplugs a USB adapter 2018-12-16 22:08:20 +00:00
exynos video: exynos: Add a dependency to the menu 2014-05-09 12:55:48 +03:00
geode video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
i810 video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
intelfb video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
kyro video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
matrox matroxfb: perform a dummy read of M_STATUS 2014-05-23 13:44:25 +03:00
mb862xx video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
mbx video/mbx: fix building debugfs support 2014-05-09 12:55:46 +03:00
mmp video: mmpfb: cleanup some static checker warnings in probe() 2014-04-30 13:57:29 +03:00
msm video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
nvidia video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
omap fbdev: omapfb: off by one in omapfb_register_client() 2018-12-16 22:08:19 +00:00
omap2 fbdev/omapfb: fix omapfb_memory_read infoleak 2018-12-16 22:09:26 +00:00
riva video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
savage video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
sis video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
vermilion video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
via video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
68328fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
acornfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
acornfb.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
amba-clcd.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
amifb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
arcfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
arkfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
asiliantfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
atafb.c m68k/atari - atafb: convert allocation of fb ram to new interface 2014-05-26 22:41:24 +02:00
atafb.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
atafb_iplan2p2.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
atafb_iplan2p4.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
atafb_iplan2p8.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
atafb_mfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
atafb_utils.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
atmel_lcdfb.c video: fbdev: atmel_lcdfb: fix display-timings lookup 2018-06-16 22:21:45 +01:00
au1100fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
au1100fb.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
au1200fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
au1200fb.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
auo_k190x.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
auo_k190x.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
auo_k1900fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
auo_k1901fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
bf54x-lq043fb.c video: delete unneeded call to platform_get_drvdata 2014-05-19 16:03:57 +03:00
bf537-lq035.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
bfin-lq035q1-fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
bfin-t350mcqb-fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
bfin_adv7393fb.c fb: adv7393: add missing semicolon 2014-07-01 13:18:38 +03:00
bfin_adv7393fb.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
broadsheetfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
bt431.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
bt455.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
bw2.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
c2p.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
c2p_core.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
c2p_iplan2.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
c2p_planar.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
carminefb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
carminefb.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
carminefb_regs.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
cg3.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
cg6.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
cg14.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
chipsfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
cirrusfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
clps711xfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
cobalt_lcdfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
controlfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
controlfb.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
cyber2000fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
cyber2000fb.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
da8xx-fb.c fbdev: da8xx-fb: fix videomodes of lcd panels 2016-05-01 00:05:51 +02:00
dnfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
edid.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
efifb.c fbdev/efifb: Fix 16 color palette entry calculation 2017-02-23 03:53:53 +00:00
ep93xx-fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
fb-puv3.c drivers/video/fbdev/fb-puv3.c: Add header files for function unifb_mmap 2014-05-23 13:51:10 +03:00
ffb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
fm2fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
fsl-diu-fb.c video: fbdev: fsl: Fix kernel crash when diu_ops is not implemented 2016-01-25 10:43:33 +00:00
g364fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
gbefb.c video: fbdev: Fix format string mismatch in gbefb.c 2014-04-30 11:24:40 +03:00
goldfishfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
grvga.c video: fbdev: grvga.c: Fix for possible null pointer dereference 2014-05-23 13:47:31 +03:00
gxt4500.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
hecubafb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
hgafb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
hitfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
hpfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
hyperv_fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
i740_reg.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
i740fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
igafb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
imsttfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
imxfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
jz4740_fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
Kconfig video: mx3fb: always enable BACKLIGHT_LCD_SUPPORT 2017-11-11 13:33:55 +00:00
leo.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
macfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
macmodes.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
macmodes.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
Makefile fbdev: move fbdev core files to separate directory 2014-04-17 08:10:19 +03:00
maxinefb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
metronomefb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
mx3fb.c video: mx3fb: Add backlight control support 2014-05-16 11:58:39 +03:00
mxsfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
n411.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
neofb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
nuc900fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
nuc900fb.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
ocfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
offb.c Revert "offb: Add palette hack for little endian" 2014-06-16 19:45:45 +10:00
p9100.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
platinumfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
platinumfb.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
pm2fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
pm3fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
pmag-aa-fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
pmag-ba-fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
pmagb-b-fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
ps3fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
pvr2fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
pxa3xx-gcu.c video: pxa3xx-gcu: use devm_ioremap_resource() 2014-04-30 14:02:15 +03:00
pxa3xx-gcu.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
pxa168fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
pxa168fb.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
pxafb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
pxafb.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
q40fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
s1d13xxxfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
s3c-fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
s3c2410fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
s3c2410fb.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
s3fb.c video: fbdev: s3fb.c: Fix for possible null pointer dereference 2014-05-23 13:47:31 +03:00
sa1100fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
sa1100fb.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
sbuslib.c fbdev: Fixing arbitrary kernel leak in case FBIOGETCMAP_SPARC in sbusfb_ioctl_helper(). 2018-06-16 22:21:32 +01:00
sbuslib.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
sh7760fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
sh_mipi_dsi.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
sh_mobile_hdmi.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
sh_mobile_lcdcfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
sh_mobile_lcdcfb.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
sh_mobile_meram.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
simplefb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
skeletonfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
sm501fb.c drivers/video/fbdev/sm501fb.c: avoid world-writable sysfs files. 2014-05-14 10:53:54 +09:30
smscufx.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
ssd1307fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
sstfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
sticore.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
stifb.c video/fbdev/stifb: Return -ENOMEM after a failed kzalloc() in stifb_init_fb() 2018-10-21 08:45:04 +01:00
sunxvr500.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
sunxvr1000.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
sunxvr2500.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
tcx.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
tdfxfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
tgafb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
tmiofb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
tridentfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
udlfb.c udlfb: set line_length in dlfb_ops_set_par 2018-12-16 22:08:23 +00:00
uvesafb.c video: uvesafb: Fix integer overflow in allocation 2018-09-25 23:47:32 +01:00
valkyriefb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
valkyriefb.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
vesafb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
vfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
vga16fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
vt8500lcdfb.c video: vt8500lcdfb: Remove kfree call since devm_kzalloc() is used 2014-06-26 14:40:07 +03:00
vt8500lcdfb.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
vt8623fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
w100fb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
w100fb.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
wm8505fb.c video: fbdev: Fix format string mismatch in wm8505fb.c 2014-04-30 11:24:40 +03:00
wm8505fb_regs.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
wmt_ge_rops.c fbdev: move fbdev core files to separate directory 2014-04-17 08:10:19 +03:00
wmt_ge_rops.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
xen-fbfront.c xen, fbfront: fix connecting to backend 2017-07-18 18:40:33 +01:00
xilinxfb.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00