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facd94bc45
linux/drivers/video/fbdev
History
Thomas Niederprüm facd94bc45 fbdev: ssd1307fb: Allocate page aligned video memory. 
Currently the videomemory is allocated by kmalloc, making it a memory
region that is not necessarily page aligend. This leads to problems
upon mmap call, where the video memory's address gets aligned to the
next page boundary. The result is that the userspace program that issued
the mmap call is not able to access the video memory from the start to
the next page boundary.

This patch changes the allocation of the video memory to use
__get_free_pages() in order to obtain memory that is aligned
to page boundaries.

Signed-off-by: Thomas Niederprüm <niederp@physik.uni-kl.de>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2015-05-27 12:53:21 +03:00
..
aty fbdev: radeon: replace PPC_OF with PPC 2015-03-17 20:04:31 +11:00
core framebuffer: don't link fb_devio into kernel image unconditionally 2015-05-07 13:59:45 +03:00
exynos Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
geode fbdev: geocode: remove unneeded NULL check 2015-01-13 13:29:22 +02:00
i810
intelfb video: fbdev: intelfb: delete double assignment 2014-08-26 15:53:34 +03:00
kyro
matrox video: fbdev: matrox: use c99 initializers in structures 2014-08-26 15:52:38 +03:00
mb862xx video: fbdev: mb862xx: drop owner assignment from platform_drivers 2014-10-20 16:21:52 +02:00
mbx video/mbx: indent some if statements 2014-07-01 13:32:30 +03:00
mmp video/mmpfb: allow modular build 2015-01-30 09:45:20 +02:00
msm msm: msm_fb: Move to using managed resources of kzalloc 2014-08-26 15:53:33 +03:00
nvidia fbdev: nvidia: remove the dependency on PPC_OF 2015-03-17 20:04:32 +11:00
omap video: fbdev: omap: drop owner assignment from platform_drivers 2014-10-20 16:21:54 +02:00
omap2 fbdev changes for v4.1 2015-04-20 15:16:25 -07:00
riva fbdev: riva: remove the dependency on PPC_OF 2015-03-17 20:04:32 +11:00
savage fbdev: savage: remove unused variable 2015-01-13 13:31:51 +02:00
sis video: fbdev-SIS: Deletion of unnecessary checks before the function call "pci_dev_put" 2014-12-04 16:16:01 +02:00
vermilion x86: Use new cache mode type in drivers/video/fbdev/vermilion 2014-11-16 11:04:25 +01:00
via fbdev: via/via_clock: fix sparse warning 2015-03-02 13:17:25 +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: Add missing error check for devm_kzalloc 2015-02-26 10:23:15 +02:00
amifb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
arcfb.c
arkfb.c video: fbdev: arkfb: suppress build warning 2014-12-04 15:41:18 +02:00
asiliantfb.c
atafb_iplan2p2.c
atafb_iplan2p4.c
atafb_iplan2p8.c
atafb_mfb.c
atafb_utils.h
atafb.c video: atafb: Remove obsolete IRQ_TYPE_PRIO 2015-01-15 13:44:51 +01:00
atafb.h
atmel_lcdfb.c Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
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: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
au1200fb.h
auo_k190x.c
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 2015-01-13 15:13:45 +02:00
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: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
controlfb.c powerpc: Move Power Macintosh drivers to generic byteswappers 2015-03-23 14:29:40 +11:00
controlfb.h
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 video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
dnfb.c
edid.h
efifb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
ep93xx-fb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +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: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
g364fb.c
gbefb.c x86: Use new cache mode type in drivers/video/fbdev/gbefb.c 2014-11-16 11:04:25 +01:00
goldfishfb.c
grvga.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
gxt4500.c
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
hyperv_fb.c hyperv: hyperv_fb: match wait_for_completion_timeout return type 2015-03-10 14:37:46 +02:00
i740_reg.h
i740fb.c PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
igafb.c
imsttfb.c fbdev: imsttfb: remove the dependency on PPC_OF 2015-03-17 20:04:31 +11:00
imxfb.c video: fbdev: make of_device_id array const 2015-03-02 13:17:24 +02:00
jz4740_fb.c
Kconfig fbdev: kconfig: replace PPC_OF with PPC 2015-03-17 20:04:32 +11:00
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 fbdev changes for 3.17 2014-08-08 18:09:33 -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: mxsfb: Make sure axi clock is enabled when accessing registers 2015-05-07 13:59:45 +03:00
n411.c
neofb.c
nuc900fb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
nuc900fb.h
ocfb.c video: ocfb: Fix data type warning 2015-01-13 12:53:25 +02:00
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
pm3fb.c fbdev: pm3fb: cleanup some confusing indenting 2015-03-10 14:47:09 +02:00
pmag-aa-fb.c
pmag-ba-fb.c
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: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
pxa3xx-gcu.h
pxa168fb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
pxa168fb.h
pxafb.c video: fbdev: use msecs_to_jiffies for time conversions 2015-03-10 14:32:13 +02:00
pxafb.h
q40fb.c
s1d13xxxfb.c
s3c2410fb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
s3c2410fb.h
s3c-fb.c More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
s3fb.c video: fbdev: s3fb: suppress build warning 2014-12-04 15:41:18 +02:00
sa1100fb.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
sa1100fb.h ARM: 8244/1: fbdev: sa1100fb: make use of device clock 2014-12-05 16:30:25 +00:00
sbuslib.c
sbuslib.h
sh7760fb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
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
simplefb.c simplefb: Fix build failure on Sparc 2015-01-13 13:25:16 +02:00
skeletonfb.c
sm501fb.c fbdev: sm501fb: use memset_io 2015-03-02 13:17:24 +02:00
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: Allocate page aligned video memory. 2015-05-27 12:53:21 +03:00
sstfb.c
sticore.h
stifb.c video: fbdev: stifb.c: use container_of to resolve stifb_info from fb_info 2014-09-30 13:06:00 +03:00
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
tgafb.c
tmiofb.c
tridentfb.c
udlfb.c video: udlfb: Deletion of unnecessary checks before the function call "vfree" 2014-12-04 16:16:01 +02:00
uvesafb.c video: uvesafb: Deletion of an unnecessary check before the function call "platform_device_put" 2014-12-04 16:16:02 +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: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00
vfb.c
vga16fb.c
vt8500lcdfb.c video: vt8500lcdfb: remove unneeded continue 2015-01-13 13:35:04 +02:00
vt8500lcdfb.h
vt8623fb.c video: fbdev: vt8623fb: suppress build warning 2014-12-04 15:41:18 +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: remove DEFINE_XENBUS_DRIVER() macro 2014-10-06 10:27:57 +01:00
xilinxfb.c video: fbdev: drop owner assignment from platform_drivers 2014-10-20 16:21:51 +02:00