Tiezhu Yang 8f7806174f MIPS: Loongson64: Use _CACHE_UNCACHED instead of _CACHE_UNCACHED_ACCELERATED ... [ Upstream commit 5e65c52ec716af6e8f51dacdaeb4a4d872249af1 ] Loongson64 processors have a writecombine issue that maybe failed to write back framebuffer used with ATI Radeon or AMD GPU at times, after commit 8a08e50cee ("drm: Permit video-buffers writecombine mapping for MIPS"), there exists some errors such as blurred screen and lockup, and so on. [ 60.958721] radeon 0000:03:00.0: ring 0 stalled for more than 10079msec [ 60.965315] radeon 0000:03:00.0: GPU lockup (current fence id 0x0000000000000112 last fence id 0x000000000000011d on ring 0) [ 60.976525] radeon 0000:03:00.0: ring 3 stalled for more than 10086msec [ 60.983156] radeon 0000:03:00.0: GPU lockup (current fence id 0x0000000000000374 last fence id 0x00000000000003a8 on ring 3) As discussed earlier [1], it might be better to disable writecombine on the CPU detection side because the root cause is unknown now. Actually, this patch is a temporary solution to just make it work well, it is not a proper and final solution, I hope someone will have a better solution to fix this issue in the future. [1] https://lore.kernel.org/patchwork/patch/1285542/ Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-05-19 10:12:55 +02:00
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alpha
arc
arm	ARM: dts: uniphier: Change phy-mode to RGMII-ID to enable delay pins for RTL8211E	2021-05-14 09:50:43 +02:00
arm64	arm64: Remove arm64_dma32_phys_limit and its uses	2021-05-14 09:50:46 +02:00
c6x
csky	csky: change a Kconfig symbol name to fix e1000 build error	2021-04-28 13:40:02 +02:00
h8300
hexagon
ia64	ia64: fix EFI_DEBUG build	2021-05-14 09:50:45 +02:00
m68k	m68k: Add missing mmap_read_lock() to sys_cacheflush()	2021-05-14 09:50:19 +02:00
microblaze
mips	MIPS: Loongson64: Use _CACHE_UNCACHED instead of _CACHE_UNCACHED_ACCELERATED	2021-05-19 10:12:55 +02:00
nds32
nios2
openrisc
parisc
powerpc	powerpc/32: Statically initialise first emergency context	2021-05-19 10:12:54 +02:00
riscv
s390	KVM: s390: extend kvm_s390_shadow_fault to return entry pointer	2021-05-14 09:50:03 +02:00
sh
sparc
um
x86	KVM/VMX: Invoke NMI non-IST entry instead of IST entry	2021-05-19 10:12:51 +02:00
xtensa
.gitignore
Kconfig