AuxXxilium/linux_dsm_epyc7002
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dcf9070595
linux_dsm_epyc7002/drivers/video/fbdev
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Yifeng Li dcf9070595 fbdev: sm712fb: fix VRAM detection, don't set SR70/71/74/75 
On a Thinkpad s30 (Pentium III / i440MX, Lynx3DM), the amount of Video
RAM is not detected correctly by the xf86-video-siliconmotion driver.
This is because sm712fb overwrites the GPR71 Scratch Pad Register, which
is set by BIOS on x86 and used to indicate amount of VRAM.

Other Scratch Pad Registers, including GPR70/74/75, don't have the same
side-effect, but overwriting to them is still questionable, as they are
not related to modesetting.

Stop writing to SR70/71/74/75 (a.k.a GPR70/71/74/75).

Signed-off-by: Yifeng Li <tomli@tomli.me>
Tested-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: Teddy Wang <teddy.wang@siliconmotion.com>
Cc: <stable@vger.kernel.org>  # v4.4+
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2019-04-01 17:46:58 +02:00
..
aty fbdev: Use of_node_name_eq for node name comparisons 2019-02-08 19:24:45 +01:00
core fbdev: list all pci memory bars as conflicting apertures 2019-04-01 17:46:57 +02:00
geode video: fbdev: geode: remove ifdef OLPC noise 2019-02-08 19:24:46 +01:00
i810 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
intelfb video: fbdev: intelfb: deprecate pci_get_bus_and_slot() 2018-01-17 08:16:46 -06:00
kyro video: fbdev: kyro: constify pci_device_id. 2017-08-01 17:20:42 +02:00
matrox powerpc, fbdev: Use NV_CMODE and NV_VMODE only when CONFIG_PPC32 && CONFIG_PPC_PMAC && CONFIG_NVRAM 2019-01-22 10:21:45 +01:00
mb862xx treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
mbx fbdev: mbx: fix a misspelled variable name 2019-03-05 12:36:33 +01:00
mmp drivers: video: fbdev: Kconfig: pedantic cleanups 2019-04-01 17:46:57 +02:00
nvidia fbdev changes for v4.18: 2018-06-17 05:00:24 +09:00
omap drivers: video: fbdev: Kconfig: pedantic cleanups 2019-04-01 17:46:57 +02:00
omap2 drivers: video: fbdev: Kconfig: pedantic cleanups 2019-04-01 17:46:57 +02:00
riva treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
savage video: fbdev: savage: fix indentation issue 2019-04-01 17:46:54 +02:00
sis video: fbdev: sis: Remove unnecessary parentheses and commented code 2018-10-08 12:57:36 +02:00
vermilion video: fbdev: vermilion: use 64-bit arithmetic instead of 32-bit 2018-03-12 17:06:54 +01:00
via fbdev/via: fix spelling mistake "Expandsion" -> "Expansion" 2019-02-08 19:24:44 +01:00
68328fb.c video: fbdev: annotate fb_fix_screeninfo with const and __initconst 2017-09-04 16:00:49 +02:00
acornfb.c drivers/video/fbdev: Fixing coding guidelines in acornfb.c 2017-04-07 17:03:24 +02:00
acornfb.h
amba-clcd-nomadik.c fbdev changes for v4.11: 2017-02-25 13:20:22 -08:00
amba-clcd-nomadik.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
amba-clcd-versatile.c video: ARM CLCD: use panel device node for panel initialization 2017-01-30 17:39:48 +01:00
amba-clcd-versatile.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
amba-clcd.c video: ARM CLCD: Improve a size determination in clcdfb_probe() 2018-03-28 16:34:29 +02:00
amifb.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
arcfb.c video: fbdev: arcfb: mark expected switch fall-through 2018-10-08 12:57:37 +02:00
arkfb.c video: fbdev: arkfb: constify pci_device_id. 2017-08-01 17:20:42 +02:00
asiliantfb.c video: fbdev: asiliantfb: constify pci_device_id. 2017-08-01 17:20:41 +02:00
atafb_iplan2p2.c fbdev: atafb: Remove obsolete module support 2019-04-01 17:46:55 +02:00
atafb_iplan2p4.c fbdev: atafb: Remove obsolete module support 2019-04-01 17:46:55 +02:00
atafb_iplan2p8.c fbdev: atafb: Remove obsolete module support 2019-04-01 17:46:55 +02:00
atafb_mfb.c fbdev: atafb: Remove obsolete module support 2019-04-01 17:46:55 +02:00
atafb_utils.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atafb.c fbdev: atafb: Modernize printing of kernel messages 2019-04-01 17:46:55 +02:00
atafb.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atmel_lcdfb.c video: fbdev: atmel_lcdfb: drop AVR and platform_data support 2019-04-01 17:46:56 +02:00
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 fbdev: au1200fb: delete duplicate header contents 2018-01-04 16:53:49 +01:00
broadsheetfb.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
bt431.h
bt455.h
bw2.c video: fbdev: Convert to using %pOF instead of full_name 2017-08-07 17:22:13 +02:00
c2p_core.h
c2p_iplan2.c
c2p_planar.c
c2p.h
carminefb_regs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
carminefb.c
carminefb.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cg3.c fbdev: Use of_node_name_eq for node name comparisons 2019-02-08 19:24:45 +01:00
cg6.c video: fbdev: Convert to using %pOF instead of full_name 2017-08-07 17:22:13 +02:00
cg14.c fbdev: Use of_node_name_eq for node name comparisons 2019-02-08 19:24:45 +01:00
chipsfb.c fbdev: chipsfb: remove set but not used variable 'size' 2019-02-08 19:24:45 +01:00
cirrusfb.c video: fbdev: cirrusfb: mark expected switch fall-throughs 2017-11-09 18:09:32 +01:00
clps711x-fb.c video: clps711x-fb: release disp device node in probe() 2018-12-20 19:13:07 +01:00
cobalt_lcdfb.c video: cobalt_lcdfb: constify fb_fix_screeninfo structure 2017-08-01 17:20:39 +02:00
controlfb.c powerpc, fbdev: Use NV_CMODE and NV_VMODE only when CONFIG_PPC32 && CONFIG_PPC_PMAC && CONFIG_NVRAM 2019-01-22 10:21:45 +01:00
controlfb.h fbdev: controlfb: Add missing modes to fix out of bounds access 2017-11-09 18:09:33 +01:00
cyber2000fb.c video: fbdev: make fb_videomode const 2017-09-04 16:00:49 +02:00
cyber2000fb.h
da8xx-fb.c cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
dnfb.c video/fbdev/dnfb: Use common error handling code in dnfb_probe() 2017-11-09 18:09:31 +01:00
edid.h
efifb.c efifb: BGRT: Add nobgrt option 2018-09-26 18:11:22 +02:00
ep93xx-fb.c
fb-puv3.c video: fbdev: make fb_var_screeninfo const 2017-09-04 16:00:50 +02:00
ffb.c fbdev: Use of_node_name_eq for node name comparisons 2019-02-08 19:24:45 +01:00
fm2fb.c video: fm2fb: constify zorro_device_id 2017-09-04 16:00:49 +02:00
fsl-diu-fb.c fbdev: fsl-diu: remove redundant null check on cmap 2018-12-20 19:13:08 +01:00
g364fb.c
gbefb.c
goldfishfb.c video: goldfishfb: fix memory leak on driver remove 2018-07-24 19:11:27 +02:00
grvga.c video: fbdev: annotate fb_fix_screeninfo with const and __initconst 2017-09-04 16:00:49 +02:00
gxt4500.c
hecubafb.c
hgafb.c video: hgafb: fix potential NULL pointer dereference 2019-04-01 17:46:58 +02:00
hitfb.c
hpfb.c hpfb: use probe_kernel_read() 2017-05-27 15:41:17 -04:00
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 video: imsttfb: fix potential NULL pointer dereferences 2019-04-01 17:46:58 +02:00
imxfb.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
jz4740_fb.c fbdev: jz4740-fb: Let the pinctrl driver configure the pins 2017-05-22 17:22:06 +02:00
Kconfig drivers: video: fbdev: Kconfig: pedantic cleanups 2019-04-01 17:46:57 +02:00
leo.c fbdev: Convert to using %pOFn instead of device_node.name 2018-10-08 12:57:36 +02:00
macfb.c video/macfb: Always initialize DAFB colour table pointer register 2019-04-01 17:46:55 +02:00
macmodes.c
macmodes.h
Makefile video: fbdev: remove dead old CLPS711x LCD support driver 2018-10-24 11:26:32 +02:00
maxinefb.c video: fbdev: make fb_var_screeninfo const 2017-09-04 16:00:50 +02:00
metronomefb.c video: fbdev: metronomefb: fix some off by one bugs 2018-07-24 19:11:26 +02:00
mx3fb.c
mxsfb.c fbdev: mxsfb: implement FB_PRE_INIT_FB option 2019-04-01 17:46:53 +02:00
n411.c Annotate hardware config module parameters in drivers/video/ 2017-04-20 12:02:32 +01:00
neofb.c video: fbdev: neofb: constify pci_device_id. 2017-08-01 17:20:44 +02:00
nuc900fb.c
nuc900fb.h
ocfb.c
offb.c video: offb: annotate implicit fall throughs 2019-02-08 19:24:46 +01:00
p9100.c fbdev: Convert to using %pOFn instead of device_node.name 2018-10-08 12:57:36 +02:00
platinumfb.c powerpc, fbdev: Use NV_CMODE and NV_VMODE only when CONFIG_PPC32 && CONFIG_PPC_PMAC && CONFIG_NVRAM 2019-01-22 10:21:45 +01:00
platinumfb.h
pm2fb.c video: fbdev: mark expected switch fall-throughs 2018-07-24 19:11:28 +02:00
pm3fb.c video: fbdev: pm3fb: constify pci_device_id. 2017-08-01 17:20:45 +02:00
pmag-aa-fb.c video: fbdev: make fb_var_screeninfo const 2017-09-04 16:00:50 +02:00
pmag-ba-fb.c video: fbdev: make fb_var_screeninfo const 2017-09-04 16:00:50 +02:00
pmagb-b-fb.c video: fbdev: make fb_var_screeninfo const 2017-09-04 16:00:50 +02:00
ps3fb.c video: fbdev: annotate fb_fix_screeninfo with const and __initconst 2017-09-04 16:00:49 +02:00
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 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pxa168fb.c pxa168fb: trivial typo fix 2018-12-20 19:13:09 +01:00
pxa168fb.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pxafb.c video: fbdev: pxafb: Fix "WARNING: invalid free of devm_ allocated data" 2018-12-20 19:13:08 +01:00
pxafb.h video: fbdev: pxafb: Add support for lcd-supply regulator 2018-07-24 19:11:26 +02:00
q40fb.c video: fbdev: make fb_var_screeninfo const 2017-09-04 16:00:50 +02:00
s1d13xxxfb.c fbdev: s1d13xxxfb: remove m32r specific hacks 2018-03-26 15:56:46 +02:00
s3c2410fb.c
s3c2410fb.h
s3c-fb.c video: fbdev: s3c-fb: remove dead platform code for Exynos and S5PV210 platforms 2018-03-28 16:34:29 +02:00
s3fb.c video: fbdev: s3fb: constify pci_device_id. 2017-08-01 17:20:45 +02:00
sa1100fb.c video: sa1100fb: move pseudo palette into sa1100fb_info structure 2017-10-17 16:01:13 +02:00
sa1100fb.h video: sa1100fb: move pseudo palette into sa1100fb_info structure 2017-10-17 16:01:13 +02:00
sbuslib.c fbdev: sbuslib: integer overflow in sbusfb_ioctl_helper() 2018-10-08 12:57:36 +02:00
sbuslib.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sh7760fb.c media: fbdev: sh7760fb: convert to SPDX identifiers 2018-09-12 09:31:04 -04:00
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
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 fbdev: sm712fb: fix VRAM detection, don't set SR70/71/74/75 2019-04-01 17:46:58 +02:00
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: Do not hard code active-low reset sequence 2019-02-08 19:24:48 +01:00
sstfb.c
sticore.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
stifb.c video/fbdev/stifb: Fix spelling mistake in fall-through annotation 2018-09-26 18:50:54 +02:00
sunxvr500.c video: fbdev: sunxvr500: constify pci_device_id. 2017-08-01 17:20:43 +02:00
sunxvr1000.c video: fbdev: Convert to using %pOF instead of full_name 2017-08-07 17:22:13 +02:00
sunxvr2500.c video: fbdev: sunxvr2500: constify pci_device_id. 2017-08-01 17:20:41 +02:00
tcx.c video: fbdev: Convert to using %pOF instead of full_name 2017-08-07 17:22:13 +02:00
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: introduce a rendering mutex 2019-04-01 17:46:57 +02:00
uvesafb.c fbdev: uvesafb: fix spelling mistake "memoery" -> "memory" 2018-12-20 19:13:08 +01:00
valkyriefb.c powerpc, fbdev: Use NV_CMODE and NV_VMODE only when CONFIG_PPC32 && CONFIG_PPC_PMAC && CONFIG_NVRAM 2019-01-22 10:21:45 +01:00
valkyriefb.h
vesafb.c video: fbdev: vesafb: fix indentation issue 2019-04-01 17:46:54 +02:00
vfb.c vfb: fix video mode and line_length being set when loaded 2018-01-04 16:53:50 +01:00
vga16fb.c video: fbdev: remove redundant self assignment of 'height' 2017-12-29 19:48:43 +01:00
vt8500lcdfb.c video/fbdev/vt8500lcdfb: Delete an error message for a failed memory allocation in vt8500lcd_probe() 2017-12-29 19:48:44 +01:00
vt8500lcdfb.h
vt8623fb.c video: fbdev: vt8623fb: constify vt8623_timing_regs 2017-08-18 19:56:40 +02:00
w100fb.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
w100fb.h
wm8505fb_regs.h
wm8505fb.c video/fbdev/wm8505fb: Delete an error message for a failed memory allocation in wm8505fb_probe() 2017-12-29 19:48:43 +01:00
wmt_ge_rops.c
wmt_ge_rops.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xen-fbfront.c xen, fbfront: mark expected switch fall-through 2019-04-01 17:46:57 +02:00
xilinxfb.c video: fbdev: Fix multiple style issues in xilinxfb 2017-08-21 16:49:57 +02:00