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linux/drivers/video/fbdev
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Mikulas Patocka 1ffd631735 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 09:27:42 +01:00
..
aty mach64: fix image corruption due to reading accelerator registers 2018-11-21 09:27:42 +01:00
core fbdev: Distinguish between interlaced and progressive modes 2018-09-26 08:35:06 +02:00
exynos fbdev: s6e8ax0: avoid unused function warnings 2018-02-25 11:03:46 +01:00
geode video: fbdev: geode gxfb: use ioremap_wc() for framebuffer 2015-06-03 12:41:53 +03:00
i810 video: fbdev: i810: use arch_phys_wc_add() and ioremap_wc() 2015-06-03 12:41:51 +03:00
intelfb video: Use bool instead int pointer for get_opt_bool() argument 2018-02-25 11:03:45 +01:00
kyro drivers/video/fbdev/kyrofb: Use arch_phys_wc_add() and pci_ioremap_wc_bar() 2015-08-25 09:59:44 +02:00
matrox video: fbdev: matrox: use arch_phys_wc_add() and ioremap_wc() 2015-06-03 12:41:49 +03:00
mb862xx video: fbdev: mb862xx: Fix module autoload for OF platform driver 2015-09-24 14:35:36 +03:00
mbx video/mbx: indent some if statements 2014-07-01 13:32:30 +03:00
mmp video: fbdev/mmp: add MODULE_LICENSE 2018-02-25 11:03:37 +01:00
nvidia video: fbdev: nvidia: use arch_phys_wc_add() and ioremap_wc() 2015-06-03 12:41:50 +03:00
omap fbdev: omapfb: off by one in omapfb_register_client() 2018-09-26 08:35:05 +02:00
omap2 fbdev/omapfb: fix omapfb_memory_read infoleak 2018-10-13 09:11:31 +02:00
riva video: fbdev: rivafb: use arch_phys_wc_add() and ioremap_wc() 2015-06-03 12:41:52 +03:00
savage video: fbdev: savagefb: use arch_phys_wc_add() and ioremap_wc() 2015-06-03 12:41:50 +03:00
sis video: fbdev: sis: remove unused variable 2018-02-25 11:03:45 +01:00
vermilion mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd 2015-11-06 17:50:42 -08:00
via fbdev/via: fix defined but not used warning 2018-09-26 08:35:05 +02:00
68328fb.c video: 68328fb: remove check for CONFIG_FB_68328_INVERT 2014-06-24 10:55:13 +03:00
acornfb.c
acornfb.h
amba-clcd-versatile.c video: move Versatile CLCD helpers 2014-06-27 10:15:22 +02:00
amba-clcd.c video: ARM CLCD: fix dma allocation size 2018-03-22 09:23:24 +01:00
amifb.c fbdev changes for 4.2 2015-06-23 16:23:30 -07:00
arcfb.c
arkfb.c drivers/video/fbdev/arkfb.c: Use arch_phys_wc_add() and pci_iomap_wc() 2015-08-25 09:59:45 +02:00
asiliantfb.c
atafb_iplan2p2.c
atafb_iplan2p4.c
atafb_iplan2p8.c
atafb_mfb.c
atafb_utils.h
atafb.c video/fbdev, asm/io.h: Remove ioremap_writethrough() 2015-06-07 15:28:57 +02:00
atafb.h
atmel_lcdfb.c video: fbdev: atmel_lcdfb: fix display-timings lookup 2018-02-22 15:45:00 +01:00
au1100fb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
au1100fb.h MIPS: Alchemy: au1100fb: use clk framework 2014-07-30 14:10:39 +02:00
au1200fb.c video: fbdev: au1200fb: Return an error code if a memory allocation fails 2017-12-20 10:04:57 +01:00
au1200fb.h
auo_k190x.c fbdev: auo_k190x: avoid unused function warnings 2018-02-25 11:03:46 +01:00
auo_k190x.h
auo_k1900fb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
auo_k1901fb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
bf54x-lq043fb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
bf537-lq035.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
bfin_adv7393fb.c fb: adv7393: add missing semicolon 2014-07-01 13:18:38 +03:00
bfin_adv7393fb.h
bfin-lq035q1-fb.c
bfin-t350mcqb-fb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
broadsheetfb.c fbdev: broadsheetfb: fix memory leak 2015-09-30 10:33:57 +03:00
bt431.h
bt455.h
bw2.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
c2p_core.h
c2p_iplan2.c
c2p_planar.c
c2p.h
carminefb_regs.h
carminefb.c
carminefb.h
cg3.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
cg6.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
cg14.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
chipsfb.c fbdev: Remove __init from chips_hw_init() to fix build failure 2014-08-26 12:48:34 +03:00
cirrusfb.c
clps711x-fb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
clps711xfb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
cobalt_lcdfb.c video: fbdev: cobalt_lcdfb: Handle return NULL error from devm_ioremap 2017-08-06 19:19:46 -07:00
controlfb.c powerpc: Move Power Macintosh drivers to generic byteswappers 2015-03-23 14:29:40 +11:00
controlfb.h fbdev: controlfb: Add missing modes to fix out of bounds access 2017-12-20 10:04:57 +01:00
cyber2000fb.c video: fbdev: cyber2000fb.c: use container_of to resolve cfb_info from fb_info 2014-09-30 13:06:01 +03:00
cyber2000fb.h
da8xx-fb.c fbdev: da8xx-fb: fix videomodes of lcd panels 2016-05-04 14:48:51 -07:00
dnfb.c
edid.h
efifb.c fbdev/efifb: Fix 16 color palette entry calculation 2016-10-28 03:01:29 -04:00
ep93xx-fb.c ARM/fb: ep93xx: switch framebuffer to use modedb only 2015-08-13 12:25:44 +02:00
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: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
fm2fb.c
fsl-diu-fb.c video: fbdev: fsl: Fix kernel crash when diu_ops is not implemented 2015-12-09 12:57:06 +02:00
g364fb.c
gbefb.c video: fbdev: gbefb: use arch_phys_wc_add() and devm_ioremap_wc() 2015-06-03 12:41:46 +03:00
goldfishfb.c video: goldfishfb: fix memory leak on driver remove 2018-09-26 08:35:05 +02:00
grvga.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
gxt4500.c gxt4500: enable panning 2015-10-08 12:19:39 +03:00
hecubafb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
hgafb.c video: hgafb: remove unneeded comparison 2015-01-26 14:43:06 +02:00
hitfb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
hpfb.c video/fbdev, asm/io.h: Remove ioremap_writethrough() 2015-06-07 15:28:57 +02:00
hyperv_fb.c drivers:hv: Move MMIO range picking from hyper_fb to hv_vmbus 2015-08-05 11:41:31 -07:00
i740_reg.h
i740fb.c drivers/video/fbdev/i740fb: Use arch_phys_wc_add() and pci_ioremap_wc_bar() 2015-08-25 09:59:44 +02:00
igafb.c
imsttfb.c fbdev: imsttfb: remove the dependency on PPC_OF 2015-03-17 20:04:31 +11:00
imxfb.c video: fbdev: imxfb: Constify platform_device_id 2015-06-12 12:40:27 +03:00
jz4740_fb.c
Kconfig fbdev: sis: enforce selection of at least one backend 2018-02-25 11:03:45 +01:00
leo.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
macfb.c
macmodes.c
macmodes.h
Makefile staging: sm7xxfb: merge sm712fb with fbdev 2015-08-07 15:05:01 -07:00
maxinefb.c
metronomefb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
mx3fb.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
mxsfb.c video: fbdev: mxsfb: Constify platform_device_id 2015-06-12 12:40:27 +03:00
n411.c
neofb.c video: fbdev: neofb: use arch_phys_wc_add() and ioremap_wc() 2015-06-03 12:41:49 +03:00
nuc900fb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
nuc900fb.h
ocfb.c cleanup IORESOURCE_CACHEABLE vs ioremap() 2015-08-10 23:07:06 -04:00
offb.c Revert "offb: Add palette hack for little endian" 2014-06-16 19:45:45 +10:00
p9100.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
platinumfb.c powerpc: Move Power Macintosh drivers to generic byteswappers 2015-03-23 14:29:40 +11:00
platinumfb.h
pm2fb.c video: fbdev: pm2fb: use arch_phys_wc_add() and ioremap_wc() 2015-06-03 12:41:51 +03:00
pm3fb.c video: fbdev: pm3fb: use arch_phys_wc_add() and ioremap_wc() 2015-06-03 12:41:52 +03:00
pmag-aa-fb.c
pmag-ba-fb.c video: fbdev: pmag-ba-fb: Remove bad `__init' annotation 2017-11-15 17:13:09 +01:00
pmagb-b-fb.c
ps3fb.c
pvr2fb.c mm: gup: use get_user_pages_unlocked 2015-02-11 17:06:05 -08:00
pxa3xx-gcu.c video: fbdev: pxa3xx_gcu: fix error return code in pxa3xx_gcu_probe() 2018-11-10 07:41:39 -08:00
pxa3xx-gcu.h
pxa168fb.c pxa168fb: prepare the clock 2018-11-10 07:41:33 -08:00
pxa168fb.h
pxafb.c cpufreq: remove redundant CPUFREQ_INCOMPATIBLE notifier event 2015-09-01 15:50:38 +02:00
pxafb.h
q40fb.c
s1d13xxxfb.c arch, drivers: don't include <asm/io.h> directly, use <linux/io.h> instead 2015-08-10 23:07:05 -04:00
s3c-fb.c video: fbdev: s3c-fb: Constify platform_device_id 2015-08-21 08:56:19 +03:00
s3c2410fb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
s3c2410fb.h
s3fb.c drivers/video/fbdev/s3fb: Use arch_phys_wc_add() and pci_iomap_wc() 2015-08-25 09:59:45 +02:00
sa1100fb.c cpufreq: remove redundant CPUFREQ_INCOMPATIBLE notifier event 2015-09-01 15:50:38 +02:00
sa1100fb.h ARM: 8244/1: fbdev: sa1100fb: make use of device clock 2014-12-05 16:30:25 +00:00
sbuslib.c fbdev: Fixing arbitrary kernel leak in case FBIOGETCMAP_SPARC in sbusfb_ioctl_helper(). 2018-05-30 07:49:04 +02:00
sbuslib.h
sh_mipi_dsi.c
sh_mobile_hdmi.c fbdev: sh_mobile_hdmi: Re-init regs before irq re-enable on resume 2014-09-30 13:42:13 +03:00
sh_mobile_lcdcfb.c fbdev: sh_mobile_lcdc: Fix destruction of uninitialized mutex 2015-04-07 16:24:15 +03:00
sh_mobile_lcdcfb.h
sh_mobile_meram.c More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
sh7760fb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
simplefb.c simplefb: Include clk.h 2015-07-20 10:52:46 -07:00
skeletonfb.c
sm501fb.c sm501fb: don't return zero on failure path in sm501fb_start() 2018-03-24 10:58:46 +01:00
sm712.h staging: sm7xxfb: merge sm712fb with fbdev 2015-08-07 15:05:01 -07:00
sm712fb.c fbdev: sm712fb: avoid unused function warnings 2018-02-25 11:03:47 +01:00
smscufx.c video: smscufx: Deletion of unnecessary checks before the function call "vfree" 2014-12-04 16:16:01 +02:00
ssd1307fb.c fbdev: ssd1307fb: add ssd1309 support 2015-09-24 14:10:26 +03:00
sstfb.c
sticore.h
stifb.c arch, drivers: don't include <asm/io.h> directly, use <linux/io.h> instead 2015-08-10 23:07:05 -04:00
sunxvr500.c
sunxvr1000.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
sunxvr2500.c
tcx.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
tdfxfb.c video: fbdev: tdfxfb: use arch_phys_wc_add() and ioremap_wc() 2015-06-03 12:41:52 +03:00
tgafb.c
tmiofb.c
tridentfb.c fbdev changes for 4.4 2015-11-10 10:00:09 -08:00
udlfb.c video: fbdev: udlfb: Fix buffer on stack 2018-03-24 10:58:46 +01:00
uvesafb.c video: uvesafb: Fix integer overflow in allocation 2018-07-03 11:21:34 +02:00
valkyriefb.c video: fbdev: valkyriefb.c: use container_of to resolve fb_info_valkyrie from fb_info 2014-09-30 13:06:01 +03:00
valkyriefb.h
vesafb.c video: fbdev: vesafb: use arch_phys_wc_add() 2015-06-16 09:42:11 +03:00
vfb.c vfb: fix video mode and line_length being set when loaded 2018-04-13 19:50:13 +02:00
vga16fb.c
vt8500lcdfb.c video: vt8500lcdfb: remove unneeded continue 2015-01-13 13:35:04 +02:00
vt8500lcdfb.h
vt8623fb.c drivers/video/fbdev/vt8623fb: Use arch_phys_wc_add() and pci_iomap_wc() 2015-08-25 09:59:45 +02:00
w100fb.c
w100fb.h
wm8505fb_regs.h
wm8505fb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
wmt_ge_rops.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
wmt_ge_rops.h
xen-fbfront.c xen, fbfront: fix connecting to backend 2017-04-21 09:30:06 +02:00
xilinxfb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00