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linux/arch/x86/kernel
Christoph Hellwig 485734f3fc x86/swiotlb: Enable swiotlb for > 4GiG RAM on 32-bit kernels
We already build the swiotlb code for 32-bit kernels with PAE support,
but the code to actually use swiotlb has only been enabled for 64-bit
kernels for an unknown reason.

Before Linux v4.18 we paper over this fact because the networking code,
the SCSI layer and some random block drivers implemented their own
bounce buffering scheme.

[ mingo: Changelog fixes. ]

Fixes: 21e07dba9f ("scsi: reduce use of block bounce buffers")
Fixes: ab74cfebaf ("net: remove the PCI_DMA_BUS_IS_PHYS check in illegal_highdma")
Reported-by: Matthew Whitehead <tedheadster@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Matthew Whitehead <tedheadster@gmail.com>
Cc: konrad.wilk@oracle.com
Cc: iommu@lists.linux-foundation.org
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20181014075208.2715-1-hch@lst.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-10-19 07:49:32 +02:00
..
acpi x86/ACPI/cstate: Make APCI C1 FFH MWAIT C-state description vendor-neutral 2018-08-15 00:19:38 +02:00
apic x86/apic/vector: Make error return value negative 2018-09-08 12:12:40 +02:00
cpu x86/intel_rdt: Fix out-of-bounds memory access in CBM tests 2018-10-09 08:02:15 +02:00
fpu x86/fpu: Remove second definition of fpu in __fpu__restore_sig() 2018-10-17 12:30:31 +02:00
kprobes
.gitignore
alternative.c x86/alternatives: Lockdep-enforce text_mutex in text_poke*() 2018-08-30 13:02:30 +02:00
amd_gart_64.c
amd_nb.c
apb_timer.c
aperture_64.c
apm_32.c x86/APM: Fix build warning when PROC_FS is not enabled 2018-09-15 10:16:25 +02:00
asm-offsets.c
asm-offsets_32.c
asm-offsets_64.c
audit_64.c
bootflag.c
check.c
cpuid.c
crash.c
crash_dump_32.c
crash_dump_64.c
devicetree.c
doublefault.c
dumpstack.c x86/process: Don't mix user/kernel regs in 64bit __show_regs() 2018-09-06 14:33:12 +02:00
dumpstack_32.c
dumpstack_64.c
e820.c
early-quirks.c
early_printk.c
ebda.c
eisa.c x86/EISA: Don't probe EISA bus for Xen PV guests 2018-09-11 23:36:50 +02:00
espfix_64.c
ftrace.c
ftrace_32.S
ftrace_64.S
head32.c
head64.c x86/mm: Expand static page table for fixmap space 2018-09-20 23:17:22 +02:00
head_32.S
head_64.S x86/mm: Expand static page table for fixmap space 2018-09-20 23:17:22 +02:00
hpet.c
hw_breakpoint.c
i8237.c
i8253.c
i8259.c
idt.c
io_delay.c
ioport.c
irq.c
irq_32.c
irq_64.c
irq_work.c
irqflags.S
irqinit.c
itmt.c
jailhouse.c
jump_label.c
kdebugfs.c
kexec-bzimage64.c Fix kexec forbidding kernels signed with keys in the secondary keyring to boot 2018-08-16 09:57:20 -07:00
kgdb.c
ksysfs.c
kvm.c x86/mm: Only use tlb_remove_table() for paravirt 2018-08-23 11:56:31 -07:00
kvmclock.c x86/kvm: Use __bss_decrypted attribute in shared variables 2018-09-15 20:48:46 +02:00
ldt.c
livepatch.c
machine_kexec_32.c
machine_kexec_64.c
Makefile
mmconf-fam10h_64.c
module.c
mpparse.c
msr.c
nmi.c
nmi_selftest.c
paravirt-spinlocks.c
paravirt.c x86/paravirt: Fix some warning messages 2018-09-19 13:22:04 +02:00
paravirt_patch_32.c
paravirt_patch_64.c
pci-calgary_64.c
pci-dma.c IOMMU Update for Linux v4.19 2018-08-24 13:10:38 -07:00
pci-iommu_table.c
pci-swiotlb.c x86/swiotlb: Enable swiotlb for > 4GiG RAM on 32-bit kernels 2018-10-19 07:49:32 +02:00
pcspeaker.c
perf_regs.c
platform-quirks.c
pmem.c
probe_roms.c
process.c
process_32.c x86/process: Don't mix user/kernel regs in 64bit __show_regs() 2018-09-06 14:33:12 +02:00
process_64.c x86/process: Don't mix user/kernel regs in 64bit __show_regs() 2018-09-06 14:33:12 +02:00
ptrace.c
pvclock.c
quirks.c
reboot.c
reboot_fixups_32.c
relocate_kernel_32.S
relocate_kernel_64.S
resource.c
rtc.c
setup.c pci-v4.19-changes 2018-08-16 09:21:54 -07:00
setup_percpu.c
signal.c
signal_compat.c
smp.c
smpboot.c
stacktrace.c
step.c
sys_x86_64.c
sysfb.c
sysfb_efi.c
sysfb_simplefb.c
tboot.c
tce_64.c
time.c x86/time: Correct the attribute on jiffies' definition 2018-10-14 11:11:23 +02:00
tls.c
tls.h
topology.c x86/xen: Disable CPU0 hotplug for Xen PV 2018-09-12 21:15:02 +02:00
trace_clock.c
tracepoint.c
traps.c
tsc.c x86/tsc: Force inlining of cyc2ns bits 2018-10-14 11:11:22 +02:00
tsc_msr.c
tsc_sync.c
umip.c
unwind_frame.c
unwind_guess.c
unwind_orc.c
uprobes.c
verify_cpu.S
vm86_32.c
vmlinux.lds.S x86/mm: Add .bss..decrypted section to hold shared variables 2018-09-15 20:48:45 +02:00
vsmp_64.c
x86_init.c