Mikulas Patocka 3690f530e1 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> Cc: stable@vger.kernel.org Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-11-21 09:19:17 +01:00
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aty	mach64: fix image corruption due to reading accelerator registers	2018-11-21 09:19:17 +01:00
core	fbcon: Do not takeover the console from atomic context	2018-08-10 17:23:02 +02:00
geode
i810
intelfb
kyro
matrox	video: matroxfb: Delete an error message for a failed memory allocation in matroxfb_crtc2_probe()	2018-03-28 16:34:28 +02:00
mb862xx	treewide: kmalloc() -> kmalloc_array()	2018-06-12 16:19:22 -07:00
mbx
mmp	fbdev changes for v4.18:	2018-06-17 05:00:24 +09:00
nvidia	fbdev changes for v4.18:	2018-06-17 05:00:24 +09:00
omap	fbdev: omapfb: off by one in omapfb_register_client()	2018-07-24 19:11:28 +02:00
omap2	fbdev/omapfb: fix omapfb_memory_read infoleak	2018-09-26 18:11:22 +02:00
riva	treewide: kmalloc() -> kmalloc_array()	2018-06-12 16:19:22 -07:00
savage	video: fbdev: savage: Replace mdelay with usleep_range in savage_init_hw	2018-04-24 18:11:21 +02:00
sis	video: fbdev: sis: avoid mismatched prototypes	2018-03-12 17:06:52 +01:00
vermilion	video: fbdev: vermilion: use 64-bit arithmetic instead of 32-bit	2018-03-12 17:06:54 +01:00
via	video: fbdev: mark expected switch fall-throughs	2018-07-24 19:11:28 +02:00
68328fb.c
acornfb.c
acornfb.h
amba-clcd-nomadik.c
amba-clcd-nomadik.h
amba-clcd-versatile.c
amba-clcd-versatile.h
amba-clcd.c	video: ARM CLCD: Improve a size determination in clcdfb_probe()	2018-03-28 16:34:29 +02:00
amifb.c	fb: amifb: fix build warnings when not builtin	2018-07-31 13:06:58 +02:00
arcfb.c
arkfb.c
asiliantfb.c
atafb_iplan2p2.c
atafb_iplan2p4.c
atafb_iplan2p8.c
atafb_mfb.c
atafb_utils.h
atafb.c
atafb.h
atmel_lcdfb.c	video: fbdev: atmel_lcdfb: convert to use GPIO descriptors	2018-03-12 17:06:52 +01:00
au1100fb.c	fbdev changes for v4.18:	2018-06-17 05:00:24 +09:00
au1100fb.h
au1200fb.c	video: fbdev: fix spelling mistake: "frambuffer" -> "framebuffer"	2018-05-15 12:41:11 +02:00
au1200fb.h
broadsheetfb.c	treewide: kzalloc() -> kcalloc()	2018-06-12 16:19:22 -07:00
bt431.h
bt455.h
bw2.c
c2p_core.h
c2p_iplan2.c
c2p_planar.c
c2p.h
carminefb_regs.h
carminefb.c
carminefb.h
cg3.c
cg6.c
cg14.c
chipsfb.c
cirrusfb.c
clps711x-fb.c
clps711xfb.c
cobalt_lcdfb.c
controlfb.c
controlfb.h
cyber2000fb.c
cyber2000fb.h
da8xx-fb.c
dnfb.c
edid.h
efifb.c	efifb: BGRT: Add nobgrt option	2018-09-26 18:11:22 +02:00
ep93xx-fb.c
fb-puv3.c
ffb.c
fm2fb.c
fsl-diu-fb.c	video: fbdev: fsl-diu-fb: Remove VLA usage	2018-07-24 19:11:26 +02:00
g364fb.c
gbefb.c
goldfishfb.c	video: goldfishfb: fix memory leak on driver remove	2018-07-24 19:11:27 +02:00
grvga.c
gxt4500.c
hecubafb.c
hgafb.c
hitfb.c
hpfb.c
hyperv_fb.c	use the new async probing feature for the hyperv drivers	2018-07-03 13:02:28 +02:00
i740_reg.h
i740fb.c	video: fbdev: mark expected switch fall-throughs	2018-07-24 19:11:28 +02:00
imsttfb.c
imxfb.c	treewide: kmalloc() -> kmalloc_array()	2018-06-12 16:19:22 -07:00
jz4740_fb.c
Kconfig	video: fbdev: via: allow COMPILE_TEST build	2018-05-15 12:41:10 +02:00
leo.c
macfb.c
macmodes.c
macmodes.h
Makefile	video: fbdev: remove unused sh_mobile_meram driver	2018-05-14 15:47:30 +02:00
maxinefb.c
metronomefb.c	video: fbdev: metronomefb: fix some off by one bugs	2018-07-24 19:11:26 +02:00
mx3fb.c
mxsfb.c	treewide: devm_kzalloc() -> devm_kcalloc()	2018-06-12 16:19:22 -07:00
n411.c
neofb.c
nuc900fb.c
nuc900fb.h
ocfb.c
offb.c	video: offb: Deallocate the color map	2018-03-12 17:06:54 +01:00
p9100.c
platinumfb.c
platinumfb.h
pm2fb.c	video: fbdev: mark expected switch fall-throughs	2018-07-24 19:11:28 +02:00
pm3fb.c
pmag-aa-fb.c
pmag-ba-fb.c
pmagb-b-fb.c
ps3fb.c
pvr2fb.c	treewide: kmalloc() -> kmalloc_array()	2018-06-12 16:19:22 -07:00
pxa3xx-gcu.c	video: fbdev: pxa3xx_gcu: add devicetree bindings	2018-07-24 19:11:25 +02:00
pxa3xx-gcu.h
pxa168fb.c	pxa168fb: prepare the clock	2018-09-26 18:11:22 +02:00
pxa168fb.h
pxafb.c	video: fbdev: pxafb: Add support for lcd-supply regulator	2018-07-24 19:11:26 +02:00
pxafb.h	video: fbdev: pxafb: Add support for lcd-supply regulator	2018-07-24 19:11:26 +02:00
q40fb.c
s1d13xxxfb.c	fbdev: s1d13xxxfb: remove m32r specific hacks	2018-03-26 15:56:46 +02:00
s3c-fb.c	video: fbdev: s3c-fb: remove dead platform code for Exynos and S5PV210 platforms	2018-03-28 16:34:29 +02:00
s3c2410fb.c
s3c2410fb.h
s3fb.c
sa1100fb.c
sa1100fb.h
sbuslib.c	fbdev: Fixing arbitrary kernel leak in case FBIOGETCMAP_SPARC in sbusfb_ioctl_helper().	2018-03-07 14:00:34 +01:00
sbuslib.h
sh_mobile_lcdcfb.c	video: fbdev: sh_mobile_lcdcfb: remove unused MERAM support	2018-05-14 15:47:30 +02:00
sh_mobile_lcdcfb.h	video: fbdev: sh_mobile_lcdcfb: remove unused MERAM support	2018-05-14 15:47:30 +02:00
sh7760fb.c
simplefb.c	video: fbdev: simplefb: Stop including <linux/clk-provider.h>	2018-07-03 17:43:09 +02:00
skeletonfb.c	docs: fix broken references with multiple hints	2018-06-15 18:10:01 -03:00
sm501fb.c	video: sm501fb: Improve a size determination in sm501fb_probe()	2018-04-26 12:24:18 +02:00
sm712.h
sm712fb.c
smscufx.c	video: smscufx: Delete an error message for a failed memory allocation in ufx_realloc_framebuffer()	2018-03-28 16:34:28 +02:00
ssd1307fb.c	video: ssd1307fb: Improve a size determination in ssd1307fb_probe()	2018-03-28 16:34:28 +02:00
sstfb.c
sticore.h
stifb.c	video/fbdev/stifb: Fix spelling mistake in fall-through annotation	2018-09-26 18:50:54 +02:00
sunxvr500.c
sunxvr1000.c
sunxvr2500.c
tcx.c
tdfxfb.c	video: fbdev: mark expected switch fall-throughs	2018-07-24 19:11:28 +02:00
tgafb.c
tmiofb.c
tridentfb.c	video: fbdev: tridentfb: remove deadcode on unreachable case statement	2018-07-24 19:11:28 +02:00
udlfb.c	udlfb: use spin_lock_irq instead of spin_lock_irqsave	2018-07-25 15:41:57 +02:00
uvesafb.c	treewide: kzalloc() -> kcalloc()	2018-06-12 16:19:22 -07:00
valkyriefb.c
valkyriefb.h
vesafb.c
vfb.c
vga16fb.c
vt8500lcdfb.c
vt8500lcdfb.h
vt8623fb.c
w100fb.c	treewide: kmalloc() -> kmalloc_array()	2018-06-12 16:19:22 -07:00
w100fb.h
wm8505fb_regs.h
wm8505fb.c
wmt_ge_rops.c
wmt_ge_rops.h
xen-fbfront.c	treewide: Use array_size() in vmalloc()	2018-06-12 16:19:22 -07:00
xilinxfb.c