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linux-bredos/arch/loongarch/kernel
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Icenowy Zheng 278be83601 LoongArch: Disable WUC for pgprot_writecombine() like ioremap_wc() 
Currently the code disables WUC only disables it for ioremap_wc(), which
is only used when mapping writecombine pages like ioremap() (mapped to
the kernel space). But for VRAM mapped in TTM/GEM, it is mapped with a
crafted pgprot by the pgprot_writecombine() function, in which case WUC
isn't disabled now.

Disable WUC for pgprot_writecombine() (fallback to SUC) if needed, like
ioremap_wc().

This improves the AMDGPU driver's stability (solves some misrendering)
on Loongson-3A5000/3A6000 machines.

Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2023-10-18 08:42:52 +08:00
..
.gitignore
…
access-helper.h
LoongArch: Add exception/interrupt handling
2022-06-03 20:09:28 +08:00
acpi.c
LoongArch: Fix some build warnings with W=1
2023-09-20 14:26:28 +08:00
alternative.c
LoongArch: Use common function sign_extend64()
2023-01-17 11:42:16 +08:00
asm-offsets.c
LoongArch: Add Loongson Binary Translation (LBT) extension support
2023-09-06 22:53:55 +08:00
cacheinfo.c
LoongArch: Refactor cache probe and flush methods
2022-10-12 16:36:14 +08:00
cpu-probe.c
LoongArch: Add Loongson Binary Translation (LBT) extension support
2023-09-06 22:53:55 +08:00
crash_dump.c
LoongArch: Add kdump support
2022-10-12 16:36:19 +08:00
dma.c
LoongArch: Use acpi_arch_dma_setup() and remove ARCH_HAS_PHYS_TO_DMA
2022-09-24 18:39:21 +02:00
efi-header.S
LoongArch: Calculate various sizes in the linker script
2023-06-29 20:58:42 +08:00
efi.c
efi: Do not include <linux/screen_info.h> from EFI header
2023-07-08 20:26:36 +02:00
elf.c
LoongArch: Add ELF and module support
2022-06-03 20:09:28 +08:00
entry.S
LoongArch: Use SYM_CODE_* to annotate exception handlers
2023-10-18 08:42:52 +08:00
env.c
LoongArch: Add FDT booting support from efi system table
2022-12-14 08:41:53 +08:00
fpu.S
LoongArch: Add Loongson Binary Translation (LBT) extension support
2023-09-06 22:53:55 +08:00
ftrace_dyn.c
LoongArch: ftrace: Add direct call support
2023-05-01 17:19:53 +08:00
ftrace.c
LoongArch/ftrace: Add basic support
2022-12-14 08:41:53 +08:00
genex.S
LoongArch: Use SYM_CODE_* to annotate exception handlers
2023-10-18 08:42:52 +08:00
head.S
LoongArch: Add KASAN (Kernel Address Sanitizer) support
2023-09-06 22:54:16 +08:00
hw_breakpoint.c
LoongArch: Fix hw_breakpoint_control() for watchpoints
2023-08-26 22:21:57 +08:00
idle.c
arch/idle: Change arch_cpu_idle() behavior: always exit with IRQs disabled
2023-01-13 11:48:15 +01:00
image-vars.h
efi: loongarch: Drop exports of unused string routines
2022-11-09 12:42:02 +01:00
inst.c
LoongArch: Add larch_insn_gen_break() to generate break insns
2023-06-29 20:58:44 +08:00
io.c
LoongArch: Add misc common routines
2022-06-03 20:09:28 +08:00
irq.c
LoongArch: Clean up the architectural interrupt definitions
2023-05-01 17:19:10 +08:00
jump_label.c
LoongArch: Add jump-label implementation
2023-06-29 20:58:44 +08:00
kfpu.c
LoongArch: Allow usage of LSX/LASX in the kernel
2023-09-06 22:53:55 +08:00
kgdb.c
LoongArch: Add basic KGDB & KDB support
2023-09-06 22:53:55 +08:00
kprobes.c
LoongArch: Use larch_insn_gen_break() for kprobes
2023-06-29 20:58:44 +08:00
lbt.S
LoongArch: Add Loongson Binary Translation (LBT) extension support
2023-09-06 22:53:55 +08:00
machine_kexec.c
LoongArch: Add kdump support
2022-10-12 16:36:19 +08:00
Makefile
LoongArch: Fix some build warnings with W=1
2023-09-20 14:26:28 +08:00
mcount_dyn.S
LoongArch: Remove unneeded #include <asm/export.h>
2023-08-25 23:40:26 +08:00
mcount.S
LoongArch: Replace #include <asm/export.h> with #include <linux/export.h>
2023-08-25 23:40:26 +08:00
mem.c
LoongArch: Set all reserved memblocks on Node#0 at initialization
2023-09-20 14:26:29 +08:00
module-sections.c
LoongArch: Fix some build warnings with W=1
2023-09-20 14:26:28 +08:00
module.c
LoongArch: Add support for 64_PCREL relocation type
2023-09-27 16:19:13 +08:00
numa.c
LoongArch: numa: Fix high_memory calculation
2023-09-27 16:19:13 +08:00
perf_event.c
LoongArch: Fix perf event id calculation
2023-06-15 14:35:52 +08:00
perf_regs.c
LoongArch: Add perf events support
2022-10-12 16:36:14 +08:00
proc.c
LoongArch: Introduce hardware page table walker
2023-06-29 20:58:44 +08:00
process.c
LoongArch: Fix some build warnings with W=1
2023-09-20 14:26:28 +08:00
ptrace.c
LoongArch: Add Loongson Binary Translation (LBT) extension support
2023-09-06 22:53:55 +08:00
relocate_kernel.S
LoongArch: Remove dead code in relocate_new_kernel
2023-09-20 14:26:29 +08:00
relocate.c
LoongArch: Simplify the processing of jumping new kernel for KASLR
2023-09-06 22:54:16 +08:00
reset.c
LoongArch: Add hibernation (ACPI S4) support
2022-12-14 08:41:53 +08:00
rethook_trampoline.S
LoongArch: Replace kretprobe with rethook
2023-06-29 20:58:44 +08:00
rethook.c
LoongArch: Replace kretprobe with rethook
2023-06-29 20:58:44 +08:00
rethook.h
LoongArch: Replace kretprobe with rethook
2023-06-29 20:58:44 +08:00
setup.c
LoongArch: Disable WUC for pgprot_writecombine() like ioremap_wc()
2023-10-18 08:42:52 +08:00
signal.c
LoongArch: Fix some build warnings with W=1
2023-09-20 14:26:28 +08:00
smp.c
LoongArch: Fix some build warnings with W=1
2023-09-20 14:26:28 +08:00
stacktrace.c
LoongArch: Get partial stack information when providing regs parameter
2023-09-06 22:54:16 +08:00
switch.S
LoongArch: Add basic STACKPROTECTOR support
2022-12-14 08:41:53 +08:00
syscall.c
LoongArch: Fix some build warnings with W=1
2023-09-20 14:26:28 +08:00
sysrq.c
tty: sysrq: switch sysrq handlers from int to u8
2023-07-25 19:21:03 +02:00
time.c
LoongArch: Fix some build warnings with W=1
2023-09-20 14:26:28 +08:00
topology.c
LoongArch: Fix some build warnings with W=1
2023-09-20 14:26:28 +08:00
traps.c
LoongArch: Fix some build warnings with W=1
2023-09-20 14:26:28 +08:00
unaligned.c
LoongArch: Delete unnecessary debugfs checking
2023-06-29 20:58:42 +08:00
unwind_guess.c
LoongArch: Strip guess unwinder out from prologue unwinder
2023-01-17 11:42:16 +08:00
unwind_prologue.c
LoongArch: Check unwind_error() in arch_stack_walk()
2023-04-19 12:07:27 +08:00
unwind.c
LoongArch: Check unwind_error() in arch_stack_walk()
2023-04-19 12:07:27 +08:00
uprobes.c
LoongArch: Add uprobes support
2023-06-29 20:58:44 +08:00
vdso.c
LoongArch: Add support to clone a time namespace
2023-06-29 20:58:43 +08:00
vmlinux.lds.S
LoongArch: Fix lockdep static memory detection
2023-09-20 14:26:28 +08:00