kernel_optimize_test/arch
Willy Tarreau e72e8bf1c9 floppy: split the base port from the register in I/O accesses
Currently we have architecture-specific fd_inb() and fd_outb() functions
or macros, taking just a port which is in fact made of a base address and
a register. The base address is FDC-specific and derived from the local or
global "fdc" variable through the FD_IOPORT macro used in the base address
calculation.

This change splits this by explicitly passing the FDC's base address and
the register separately to fd_outb() and fd_inb(). It affects the
following archs:
  - x86, alpha, mips, powerpc, parisc, arm, m68k:
    simple remap of port -> base+reg

  - sparc32: use of reg only, since the base address was already masked
    out and the FDC controller is known from a static struct.

  - sparc64: like x86 for PCI, like sparc32 for 82077

Some archs use inline functions and others macros. This was not
unified in order to minimize the number of changes to review. For the
same reason checkpatch still spews a few warnings about things that
were already there before.

The parisc still uses hard-coded register values and could be cleaned up
by taking the register definitions.

The sparc per-controller inb/outb functions could further be refined
to explicitly take an FDC register instead of a port in argument but it
was not needed yet and may be cleaned later.

Link: https://lore.kernel.org/r/20200331094054.24441-2-w@1wt.eu
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Ian Molton <spyro@f2s.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: x86@kernel.org
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Denis Efremov <efremov@linux.com>
2020-05-12 19:34:52 +03:00
..
alpha floppy: split the base port from the register in I/O accesses 2020-05-12 19:34:52 +03:00
arc mm/vma: define a default value for VM_DATA_DEFAULT_FLAGS 2020-04-10 15:36:21 -07:00
arm floppy: split the base port from the register in I/O accesses 2020-05-12 19:34:52 +03:00
arm64 arm64: Delete the space separator in __emit_inst 2020-04-15 13:07:12 +01:00
c6x mm/vma: define a default value for VM_DATA_DEFAULT_FLAGS 2020-04-10 15:36:21 -07:00
csky mm/special: create generic fallbacks for pte_special() and pte_mkspecial() 2020-04-10 15:36:21 -07:00
h8300 Kbuild updates for v5.7 (2nd) 2020-04-11 09:46:12 -07:00
hexagon mm/special: create generic fallbacks for pte_special() and pte_mkspecial() 2020-04-10 15:36:21 -07:00
ia64 mm/memory_hotplug: add pgprot_t to mhp_params 2020-04-10 15:36:21 -07:00
m68k floppy: split the base port from the register in I/O accesses 2020-05-12 19:34:52 +03:00
microblaze mm/special: create generic fallbacks for pte_special() and pte_mkspecial() 2020-04-10 15:36:21 -07:00
mips floppy: split the base port from the register in I/O accesses 2020-05-12 19:34:52 +03:00
nds32 mm/special: create generic fallbacks for pte_special() and pte_mkspecial() 2020-04-10 15:36:21 -07:00
nios2 nios2 update for v5.7-rc1 2020-04-11 11:38:44 -07:00
openrisc mm/special: create generic fallbacks for pte_special() and pte_mkspecial() 2020-04-10 15:36:21 -07:00
parisc floppy: split the base port from the register in I/O accesses 2020-05-12 19:34:52 +03:00
powerpc floppy: split the base port from the register in I/O accesses 2020-05-12 19:34:52 +03:00
riscv Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-04-16 14:52:29 -07:00
s390 Merge branch 'akpm' (patches from Andrew) 2020-04-10 17:57:48 -07:00
sh Kbuild updates for v5.7 (2nd) 2020-04-11 09:46:12 -07:00
sparc floppy: split the base port from the register in I/O accesses 2020-05-12 19:34:52 +03:00
um mm/special: create generic fallbacks for pte_special() and pte_mkspecial() 2020-04-10 15:36:21 -07:00
unicore32 mm/special: create generic fallbacks for pte_special() and pte_mkspecial() 2020-04-10 15:36:21 -07:00
x86 floppy: split the base port from the register in I/O accesses 2020-05-12 19:34:52 +03:00
xtensa Merge branch 'akpm' (patches from Andrew) 2020-04-10 17:57:48 -07:00
.gitignore
Kconfig dma-mapping updates for 5.7 2020-04-04 10:12:47 -07:00