linux/arch/x86
Arnd Bergmann 4313a24985 arch/*/: remove CONFIG_VIRT_TO_BUS
All architecture-independent users of virt_to_bus() and bus_to_virt()
have been fixed to use the dma mapping interfaces or have been
removed now.  This means the definitions on most architectures, and the
CONFIG_VIRT_TO_BUS symbol are now obsolete and can be removed.

The only exceptions to this are a few network and scsi drivers for m68k
Amiga and VME machines and ppc32 Macintosh. These drivers work correctly
with the old interfaces and are probably not worth changing.

On alpha and parisc, virt_to_bus() were still used in asm/floppy.h.
alpha can use isa_virt_to_bus() like x86 does, and parisc can just
open-code the virt_to_phys() here, as this is architecture specific
code.

I tried updating the bus-virt-phys-mapping.rst documentation, which
started as an email from Linus to explain some details of the Linux-2.0
driver interfaces. The bits about virt_to_bus() were declared obsolete
backin 2000, and the rest is not all that relevant any more, so in the
end I just decided to remove the file completely.

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Acked-by: Helge Deller <deller@gmx.de> # parisc
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-06-28 13:20:21 +02:00
..
boot Follow-up tweaks for the EFI changes in v5.19 2022-06-03 13:39:30 -07:00
coco Intel Trust Domain Extensions 2022-05-23 17:51:12 -07:00
configs x86/config: Make the x86 defconfigs a bit more usable 2022-03-27 20:58:35 +02:00
crypto crypto: x86 - eliminate anonymous module_init & module_exit 2022-04-08 16:13:31 +08:00
entry kernel-hardening updates for v5.19-rc1 2022-05-24 12:27:09 -07:00
events Two small perf updates: 2022-06-05 10:40:31 -07:00
hyperv hyperv-next for 5.17 2022-01-16 15:53:00 +02:00
ia32 x86: Remove a.out support 2022-04-11 18:04:27 +02:00
include arch/*/: remove CONFIG_VIRT_TO_BUS 2022-06-28 13:20:21 +02:00
kernel Hot fixes for 5.19-rc1. 2022-06-05 17:05:38 -07:00
kvm * Fix syzkaller NULL pointer dereference 2022-06-08 09:16:31 -07:00
lib Not a lot of material this cycle. Many singleton patches against various 2022-05-27 11:22:03 -07:00
math-emu x86/32: Remove lazy GS macros 2022-04-14 14:09:43 +02:00
mm virtio: replace arch_has_restricted_virtio_memory_access() 2022-06-06 08:22:01 +02:00
net bpf: Introduce bpf_arch_text_invalidate for bpf_prog_pack 2022-05-23 23:08:11 +02:00
pci pci-v5.19-changes 2022-05-27 15:25:10 -07:00
platform arch/x86: replace cpumask_weight with cpumask_empty where appropriate 2022-06-03 06:52:57 -07:00
power x86/cpu: Load microcode during restore_processor_state() 2022-04-19 19:37:05 +02:00
purgatory
ras
realmode Intel Trust Domain Extensions 2022-05-23 17:51:12 -07:00
tools
um um: Fix out-of-bounds read in LDT setup 2022-05-27 09:03:41 +02:00
video
virt/vmx/tdx x86/tdx: Provide common base for SEAMCALL and TDCALL C wrappers 2022-04-07 08:27:50 -07:00
xen xen/virtio: Enable restricted memory access using Xen grant mappings 2022-06-06 16:07:30 +02:00
.gitignore
Kbuild x86/cc: Move arch/x86/{kernel/cc_platform.c => coco/core.c} 2022-02-23 18:25:58 +01:00
Kconfig arch/*/: remove CONFIG_VIRT_TO_BUS 2022-06-28 13:20:21 +02:00
Kconfig.assembler
Kconfig.cpu
Kconfig.debug x86/Kconfig: Fix indentation of arch/x86/Kconfig.debug 2022-05-25 15:39:27 +02:00
Makefile Kbuild updates for v5.19 2022-05-26 12:09:50 -07:00
Makefile_32.cpu
Makefile.um