mirror of
https://github.com/torvalds/linux
synced 2024-07-09 04:38:56 +00:00
MIPS: make CPU_HAS_LOAD_STORE_LR opt-out
CPU_HAS_LOAD_STORE_LR was introduced in 932afdeec1 ("MIPS: Add Kconfig
variable for CPUs with unaligned load/store instructions") to make code
in kernel/unaligned.c and lib/mem{cpy,set}.S more intuitive and give a
possibility to easily add new CPUs without these instruction sets in
future.
Hovewer, this variant is not optimal for mainly two reasons:
* For now, we have 20+ CPUs with such instructions and only two (MIPS R6)
without. It will obviously be more effective and straightforward to
have an option for these two rather than for the rest.
* You can easily miss the fact that you need to select this option when
adding a new CPU, while all processors lacking these sets are
well-known, so the probability of missing something is way much lower.
We can address both points by turning CPU_HAS_LOAD_STORE_LR into opt-out
CPU_NO_LOAD_STORE_LR. This also makes MIPS root Kconfig more clear and
understandable.
Signed-off-by: Alexander Lobakin <alobakin@dlink.ru>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>
Cc: Will Deacon <will@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Allison Randal <allison@lohutok.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
This commit is contained in:
Alexander Lobakin
Paul Burton
parent
7de86604bb
commit
18d84e2e55
|
|
@ -1218,8 +1218,7 @@ config NO_IOPORT_MAP
|
|||
def_bool n
|
||||
|
||||
config GENERIC_CSUM
|
||||
bool
|
||||
default y if !CPU_HAS_LOAD_STORE_LR
|
||||
def_bool CPU_NO_LOAD_STORE_LR
|
||||
|
||||
config GENERIC_ISA_DMA
|
||||
bool
|
||||
|
|
@ -1441,7 +1440,6 @@ config CPU_LOONGSON64
|
|||
select CPU_SUPPORTS_HIGHMEM
|
||||
select CPU_SUPPORTS_HUGEPAGES
|
||||
select CPU_SUPPORTS_MSA
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
select WEAK_ORDERING
|
||||
select WEAK_REORDERING_BEYOND_LLSC
|
||||
select MIPS_ASID_BITS_VARIABLE
|
||||
|
|
@ -1537,7 +1535,6 @@ config CPU_MIPS32_R1
|
|||
bool "MIPS32 Release 1"
|
||||
depends on SYS_HAS_CPU_MIPS32_R1
|
||||
select CPU_HAS_PREFETCH
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
select CPU_SUPPORTS_32BIT_KERNEL
|
||||
select CPU_SUPPORTS_HIGHMEM
|
||||
help
|
||||
|
|
@ -1555,7 +1552,6 @@ config CPU_MIPS32_R2
|
|||
bool "MIPS32 Release 2"
|
||||
depends on SYS_HAS_CPU_MIPS32_R2
|
||||
select CPU_HAS_PREFETCH
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
select CPU_SUPPORTS_32BIT_KERNEL
|
||||
select CPU_SUPPORTS_HIGHMEM
|
||||
select CPU_SUPPORTS_MSA
|
||||
|
|
@ -1571,6 +1567,7 @@ config CPU_MIPS32_R6
|
|||
bool "MIPS32 Release 6"
|
||||
depends on SYS_HAS_CPU_MIPS32_R6
|
||||
select CPU_HAS_PREFETCH
|
||||
select CPU_NO_LOAD_STORE_LR
|
||||
select CPU_SUPPORTS_32BIT_KERNEL
|
||||
select CPU_SUPPORTS_HIGHMEM
|
||||
select CPU_SUPPORTS_MSA
|
||||
|
|
@ -1586,7 +1583,6 @@ config CPU_MIPS64_R1
|
|||
bool "MIPS64 Release 1"
|
||||
depends on SYS_HAS_CPU_MIPS64_R1
|
||||
select CPU_HAS_PREFETCH
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
select CPU_SUPPORTS_32BIT_KERNEL
|
||||
select CPU_SUPPORTS_64BIT_KERNEL
|
||||
select CPU_SUPPORTS_HIGHMEM
|
||||
|
|
@ -1606,7 +1602,6 @@ config CPU_MIPS64_R2
|
|||
bool "MIPS64 Release 2"
|
||||
depends on SYS_HAS_CPU_MIPS64_R2
|
||||
select CPU_HAS_PREFETCH
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
select CPU_SUPPORTS_32BIT_KERNEL
|
||||
select CPU_SUPPORTS_64BIT_KERNEL
|
||||
select CPU_SUPPORTS_HIGHMEM
|
||||
|
|
@ -1624,6 +1619,7 @@ config CPU_MIPS64_R6
|
|||
bool "MIPS64 Release 6"
|
||||
depends on SYS_HAS_CPU_MIPS64_R6
|
||||
select CPU_HAS_PREFETCH
|
||||
select CPU_NO_LOAD_STORE_LR
|
||||
select CPU_SUPPORTS_32BIT_KERNEL
|
||||
select CPU_SUPPORTS_64BIT_KERNEL
|
||||
select CPU_SUPPORTS_HIGHMEM
|
||||
|
|
@ -1641,7 +1637,6 @@ config CPU_R3000
|
|||
bool "R3000"
|
||||
depends on SYS_HAS_CPU_R3000
|
||||
select CPU_HAS_WB
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
select CPU_R3K_TLB
|
||||
select CPU_SUPPORTS_32BIT_KERNEL
|
||||
select CPU_SUPPORTS_HIGHMEM
|
||||
|
|
@ -1657,7 +1652,6 @@ config CPU_TX39XX
|
|||
bool "R39XX"
|
||||
depends on SYS_HAS_CPU_TX39XX
|
||||
select CPU_SUPPORTS_32BIT_KERNEL
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
select CPU_R3K_TLB
|
||||
|
||||
config CPU_VR41XX
|
||||
|
|
@ -1665,7 +1659,6 @@ config CPU_VR41XX
|
|||
depends on SYS_HAS_CPU_VR41XX
|
||||
select CPU_SUPPORTS_32BIT_KERNEL
|
||||
select CPU_SUPPORTS_64BIT_KERNEL
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
help
|
||||
The options selects support for the NEC VR4100 series of processors.
|
||||
Only choose this option if you have one of these processors as a
|
||||
|
|
@ -1678,7 +1671,6 @@ config CPU_R4X00
|
|||
select CPU_SUPPORTS_32BIT_KERNEL
|
||||
select CPU_SUPPORTS_64BIT_KERNEL
|
||||
select CPU_SUPPORTS_HUGEPAGES
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
help
|
||||
MIPS Technologies R4000-series processors other than 4300, including
|
||||
the R4000, R4400, R4600, and 4700.
|
||||
|
|
@ -1687,7 +1679,6 @@ config CPU_TX49XX
|
|||
bool "R49XX"
|
||||
depends on SYS_HAS_CPU_TX49XX
|
||||
select CPU_HAS_PREFETCH
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
select CPU_SUPPORTS_32BIT_KERNEL
|
||||
select CPU_SUPPORTS_64BIT_KERNEL
|
||||
select CPU_SUPPORTS_HUGEPAGES
|
||||
|
|
@ -1698,7 +1689,6 @@ config CPU_R5000
|
|||
select CPU_SUPPORTS_32BIT_KERNEL
|
||||
select CPU_SUPPORTS_64BIT_KERNEL
|
||||
select CPU_SUPPORTS_HUGEPAGES
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
help
|
||||
MIPS Technologies R5000-series processors other than the Nevada.
|
||||
|
||||
|
|
@ -1708,7 +1698,6 @@ config CPU_R5500
|
|||
select CPU_SUPPORTS_32BIT_KERNEL
|
||||
select CPU_SUPPORTS_64BIT_KERNEL
|
||||
select CPU_SUPPORTS_HUGEPAGES
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
help
|
||||
NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
|
||||
instruction set.
|
||||
|
|
@ -1719,7 +1708,6 @@ config CPU_NEVADA
|
|||
select CPU_SUPPORTS_32BIT_KERNEL
|
||||
select CPU_SUPPORTS_64BIT_KERNEL
|
||||
select CPU_SUPPORTS_HUGEPAGES
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
help
|
||||
QED / PMC-Sierra RM52xx-series ("Nevada") processors.
|
||||
|
||||
|
|
@ -1727,7 +1715,6 @@ config CPU_R10000
|
|||
bool "R10000"
|
||||
depends on SYS_HAS_CPU_R10000
|
||||
select CPU_HAS_PREFETCH
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
select CPU_SUPPORTS_32BIT_KERNEL
|
||||
select CPU_SUPPORTS_64BIT_KERNEL
|
||||
select CPU_SUPPORTS_HIGHMEM
|
||||
|
|
@ -1739,7 +1726,6 @@ config CPU_RM7000
|
|||
bool "RM7000"
|
||||
depends on SYS_HAS_CPU_RM7000
|
||||
select CPU_HAS_PREFETCH
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
select CPU_SUPPORTS_32BIT_KERNEL
|
||||
select CPU_SUPPORTS_64BIT_KERNEL
|
||||
select CPU_SUPPORTS_HIGHMEM
|
||||
|
|
@ -1748,7 +1734,6 @@ config CPU_RM7000
|
|||
config CPU_SB1
|
||||
bool "SB1"
|
||||
depends on SYS_HAS_CPU_SB1
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
select CPU_SUPPORTS_32BIT_KERNEL
|
||||
select CPU_SUPPORTS_64BIT_KERNEL
|
||||
select CPU_SUPPORTS_HIGHMEM
|
||||
|
|
@ -1759,7 +1744,6 @@ config CPU_CAVIUM_OCTEON
|
|||
bool "Cavium Octeon processor"
|
||||
depends on SYS_HAS_CPU_CAVIUM_OCTEON
|
||||
select CPU_HAS_PREFETCH
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
select CPU_SUPPORTS_64BIT_KERNEL
|
||||
select WEAK_ORDERING
|
||||
select CPU_SUPPORTS_HIGHMEM
|
||||
|
|
@ -1789,7 +1773,6 @@ config CPU_BMIPS
|
|||
select WEAK_ORDERING
|
||||
select CPU_SUPPORTS_HIGHMEM
|
||||
select CPU_HAS_PREFETCH
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
select CPU_SUPPORTS_CPUFREQ
|
||||
select MIPS_EXTERNAL_TIMER
|
||||
help
|
||||
|
|
@ -1798,7 +1781,6 @@ config CPU_BMIPS
|
|||
config CPU_XLR
|
||||
bool "Netlogic XLR SoC"
|
||||
depends on SYS_HAS_CPU_XLR
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
select CPU_SUPPORTS_32BIT_KERNEL
|
||||
select CPU_SUPPORTS_64BIT_KERNEL
|
||||
select CPU_SUPPORTS_HIGHMEM
|
||||
|
|
@ -1817,7 +1799,6 @@ config CPU_XLP
|
|||
select WEAK_ORDERING
|
||||
select WEAK_REORDERING_BEYOND_LLSC
|
||||
select CPU_HAS_PREFETCH
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
select CPU_MIPSR2
|
||||
select CPU_SUPPORTS_HUGEPAGES
|
||||
select MIPS_ASID_BITS_VARIABLE
|
||||
|
|
@ -1923,14 +1904,12 @@ config CPU_LOONGSON2EF
|
|||
select CPU_SUPPORTS_HIGHMEM
|
||||
select CPU_SUPPORTS_HUGEPAGES
|
||||
select ARCH_HAS_PHYS_TO_DMA
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
|
||||
config CPU_LOONGSON32
|
||||
bool
|
||||
select CPU_MIPS32
|
||||
select CPU_MIPSR2
|
||||
select CPU_HAS_PREFETCH
|
||||
select CPU_HAS_LOAD_STORE_LR
|
||||
select CPU_SUPPORTS_32BIT_KERNEL
|
||||
select CPU_SUPPORTS_HIGHMEM
|
||||
select CPU_SUPPORTS_CPUFREQ
|
||||
|
|
@ -2573,12 +2552,13 @@ config XKS01
|
|||
config CPU_HAS_RIXI
|
||||
bool
|
||||
|
||||
config CPU_HAS_LOAD_STORE_LR
|
||||
config CPU_NO_LOAD_STORE_LR
|
||||
bool
|
||||
help
|
||||
CPU has support for unaligned load and store instructions:
|
||||
CPU lacks support for unaligned load and store instructions:
|
||||
LWL, LWR, SWL, SWR (Load/store word left/right).
|
||||
LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
|
||||
LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
|
||||
systems).
|
||||
|
||||
#
|
||||
# Vectored interrupt mode is an R2 feature
|
||||
|
|
|
|||
|
|
@ -131,7 +131,7 @@ do { \
|
|||
: "r" (addr), "i" (-EFAULT)); \
|
||||
} while(0)
|
||||
|
||||
#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR
|
||||
#ifndef CONFIG_CPU_NO_LOAD_STORE_LR
|
||||
#define _LoadW(addr, value, res, type) \
|
||||
do { \
|
||||
__asm__ __volatile__ ( \
|
||||
|
|
@ -152,7 +152,7 @@ do { \
|
|||
: "r" (addr), "i" (-EFAULT)); \
|
||||
} while(0)
|
||||
|
||||
#else /* !CONFIG_CPU_HAS_LOAD_STORE_LR */
|
||||
#else /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
/* For CPUs without lwl instruction */
|
||||
#define _LoadW(addr, value, res, type) \
|
||||
do { \
|
||||
|
|
@ -187,7 +187,7 @@ do { \
|
|||
: "r" (addr), "i" (-EFAULT)); \
|
||||
} while(0)
|
||||
|
||||
#endif /* !CONFIG_CPU_HAS_LOAD_STORE_LR */
|
||||
#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
|
||||
#define _LoadHWU(addr, value, res, type) \
|
||||
do { \
|
||||
|
|
@ -213,7 +213,7 @@ do { \
|
|||
: "r" (addr), "i" (-EFAULT)); \
|
||||
} while(0)
|
||||
|
||||
#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR
|
||||
#ifndef CONFIG_CPU_NO_LOAD_STORE_LR
|
||||
#define _LoadWU(addr, value, res, type) \
|
||||
do { \
|
||||
__asm__ __volatile__ ( \
|
||||
|
|
@ -256,7 +256,7 @@ do { \
|
|||
: "r" (addr), "i" (-EFAULT)); \
|
||||
} while(0)
|
||||
|
||||
#else /* !CONFIG_CPU_HAS_LOAD_STORE_LR */
|
||||
#else /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
/* For CPUs without lwl and ldl instructions */
|
||||
#define _LoadWU(addr, value, res, type) \
|
||||
do { \
|
||||
|
|
@ -340,7 +340,7 @@ do { \
|
|||
: "r" (addr), "i" (-EFAULT)); \
|
||||
} while(0)
|
||||
|
||||
#endif /* !CONFIG_CPU_HAS_LOAD_STORE_LR */
|
||||
#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
|
||||
|
||||
#define _StoreHW(addr, value, res, type) \
|
||||
|
|
@ -366,7 +366,7 @@ do { \
|
|||
: "r" (value), "r" (addr), "i" (-EFAULT));\
|
||||
} while(0)
|
||||
|
||||
#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR
|
||||
#ifndef CONFIG_CPU_NO_LOAD_STORE_LR
|
||||
#define _StoreW(addr, value, res, type) \
|
||||
do { \
|
||||
__asm__ __volatile__ ( \
|
||||
|
|
@ -407,7 +407,7 @@ do { \
|
|||
: "r" (value), "r" (addr), "i" (-EFAULT)); \
|
||||
} while(0)
|
||||
|
||||
#else /* !CONFIG_CPU_HAS_LOAD_STORE_LR */
|
||||
#else /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
#define _StoreW(addr, value, res, type) \
|
||||
do { \
|
||||
__asm__ __volatile__ ( \
|
||||
|
|
@ -483,7 +483,7 @@ do { \
|
|||
: "memory"); \
|
||||
} while(0)
|
||||
|
||||
#endif /* !CONFIG_CPU_HAS_LOAD_STORE_LR */
|
||||
#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
|
||||
#else /* __BIG_ENDIAN */
|
||||
|
||||
|
|
@ -509,7 +509,7 @@ do { \
|
|||
: "r" (addr), "i" (-EFAULT)); \
|
||||
} while(0)
|
||||
|
||||
#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR
|
||||
#ifndef CONFIG_CPU_NO_LOAD_STORE_LR
|
||||
#define _LoadW(addr, value, res, type) \
|
||||
do { \
|
||||
__asm__ __volatile__ ( \
|
||||
|
|
@ -530,7 +530,7 @@ do { \
|
|||
: "r" (addr), "i" (-EFAULT)); \
|
||||
} while(0)
|
||||
|
||||
#else /* !CONFIG_CPU_HAS_LOAD_STORE_LR */
|
||||
#else /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
/* For CPUs without lwl instruction */
|
||||
#define _LoadW(addr, value, res, type) \
|
||||
do { \
|
||||
|
|
@ -565,7 +565,7 @@ do { \
|
|||
: "r" (addr), "i" (-EFAULT)); \
|
||||
} while(0)
|
||||
|
||||
#endif /* !CONFIG_CPU_HAS_LOAD_STORE_LR */
|
||||
#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
|
||||
|
||||
#define _LoadHWU(addr, value, res, type) \
|
||||
|
|
@ -592,7 +592,7 @@ do { \
|
|||
: "r" (addr), "i" (-EFAULT)); \
|
||||
} while(0)
|
||||
|
||||
#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR
|
||||
#ifndef CONFIG_CPU_NO_LOAD_STORE_LR
|
||||
#define _LoadWU(addr, value, res, type) \
|
||||
do { \
|
||||
__asm__ __volatile__ ( \
|
||||
|
|
@ -635,7 +635,7 @@ do { \
|
|||
: "r" (addr), "i" (-EFAULT)); \
|
||||
} while(0)
|
||||
|
||||
#else /* !CONFIG_CPU_HAS_LOAD_STORE_LR */
|
||||
#else /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
/* For CPUs without lwl and ldl instructions */
|
||||
#define _LoadWU(addr, value, res, type) \
|
||||
do { \
|
||||
|
|
@ -718,7 +718,7 @@ do { \
|
|||
: "=&r" (value), "=r" (res) \
|
||||
: "r" (addr), "i" (-EFAULT)); \
|
||||
} while(0)
|
||||
#endif /* !CONFIG_CPU_HAS_LOAD_STORE_LR */
|
||||
#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
|
||||
#define _StoreHW(addr, value, res, type) \
|
||||
do { \
|
||||
|
|
@ -743,7 +743,7 @@ do { \
|
|||
: "r" (value), "r" (addr), "i" (-EFAULT));\
|
||||
} while(0)
|
||||
|
||||
#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR
|
||||
#ifndef CONFIG_CPU_NO_LOAD_STORE_LR
|
||||
#define _StoreW(addr, value, res, type) \
|
||||
do { \
|
||||
__asm__ __volatile__ ( \
|
||||
|
|
@ -784,7 +784,7 @@ do { \
|
|||
: "r" (value), "r" (addr), "i" (-EFAULT)); \
|
||||
} while(0)
|
||||
|
||||
#else /* !CONFIG_CPU_HAS_LOAD_STORE_LR */
|
||||
#else /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
/* For CPUs without swl and sdl instructions */
|
||||
#define _StoreW(addr, value, res, type) \
|
||||
do { \
|
||||
|
|
@ -861,7 +861,7 @@ do { \
|
|||
: "memory"); \
|
||||
} while(0)
|
||||
|
||||
#endif /* !CONFIG_CPU_HAS_LOAD_STORE_LR */
|
||||
#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
#endif
|
||||
|
||||
#define LoadHWU(addr, value, res) _LoadHWU(addr, value, res, kernel)
|
||||
|
|
|
|||
|
|
@ -301,14 +301,14 @@
|
|||
and t0, src, ADDRMASK
|
||||
PREFS( 0, 2*32(src) )
|
||||
PREFD( 1, 2*32(dst) )
|
||||
#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR
|
||||
#ifndef CONFIG_CPU_NO_LOAD_STORE_LR
|
||||
bnez t1, .Ldst_unaligned\@
|
||||
nop
|
||||
bnez t0, .Lsrc_unaligned_dst_aligned\@
|
||||
#else
|
||||
#else /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
or t0, t0, t1
|
||||
bnez t0, .Lcopy_unaligned_bytes\@
|
||||
#endif
|
||||
#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
/*
|
||||
* use delay slot for fall-through
|
||||
* src and dst are aligned; need to compute rem
|
||||
|
|
@ -389,7 +389,7 @@
|
|||
bne rem, len, 1b
|
||||
.set noreorder
|
||||
|
||||
#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR
|
||||
#ifndef CONFIG_CPU_NO_LOAD_STORE_LR
|
||||
/*
|
||||
* src and dst are aligned, need to copy rem bytes (rem < NBYTES)
|
||||
* A loop would do only a byte at a time with possible branch
|
||||
|
|
@ -491,7 +491,7 @@
|
|||
bne len, rem, 1b
|
||||
.set noreorder
|
||||
|
||||
#endif /* CONFIG_CPU_HAS_LOAD_STORE_LR */
|
||||
#endif /* !CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
.Lcopy_bytes_checklen\@:
|
||||
beqz len, .Ldone\@
|
||||
nop
|
||||
|
|
@ -520,7 +520,7 @@
|
|||
jr ra
|
||||
nop
|
||||
|
||||
#ifndef CONFIG_CPU_HAS_LOAD_STORE_LR
|
||||
#ifdef CONFIG_CPU_NO_LOAD_STORE_LR
|
||||
.Lcopy_unaligned_bytes\@:
|
||||
1:
|
||||
COPY_BYTE(0)
|
||||
|
|
@ -534,7 +534,7 @@
|
|||
ADD src, src, 8
|
||||
b 1b
|
||||
ADD dst, dst, 8
|
||||
#endif /* !CONFIG_CPU_HAS_LOAD_STORE_LR */
|
||||
#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
.if __memcpy == 1
|
||||
END(memcpy)
|
||||
.set __memcpy, 0
|
||||
|
|
|
|||
|
|
@ -115,7 +115,7 @@
|
|||
#endif
|
||||
.set reorder
|
||||
|
||||
#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR
|
||||
#ifndef CONFIG_CPU_NO_LOAD_STORE_LR
|
||||
R10KCBARRIER(0(ra))
|
||||
#ifdef __MIPSEB__
|
||||
EX(LONG_S_L, a1, (a0), .Lfirst_fixup\@) /* make word/dword aligned */
|
||||
|
|
@ -125,7 +125,7 @@
|
|||
PTR_SUBU a0, t0 /* long align ptr */
|
||||
PTR_ADDU a2, t0 /* correct size */
|
||||
|
||||
#else /* !CONFIG_CPU_HAS_LOAD_STORE_LR */
|
||||
#else /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
#define STORE_BYTE(N) \
|
||||
EX(sb, a1, N(a0), .Lbyte_fixup\@); \
|
||||
.set noreorder; \
|
||||
|
|
@ -150,7 +150,7 @@
|
|||
ori a0, STORMASK
|
||||
xori a0, STORMASK
|
||||
PTR_ADDIU a0, STORSIZE
|
||||
#endif /* !CONFIG_CPU_HAS_LOAD_STORE_LR */
|
||||
#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
1: ori t1, a2, 0x3f /* # of full blocks */
|
||||
xori t1, 0x3f
|
||||
andi t0, a2, 0x40-STORSIZE
|
||||
|
|
@ -185,7 +185,7 @@
|
|||
|
||||
.set noreorder
|
||||
beqz a2, 1f
|
||||
#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR
|
||||
#ifndef CONFIG_CPU_NO_LOAD_STORE_LR
|
||||
PTR_ADDU a0, a2 /* What's left */
|
||||
.set reorder
|
||||
R10KCBARRIER(0(ra))
|
||||
|
|
@ -194,7 +194,7 @@
|
|||
#else
|
||||
EX(LONG_S_L, a1, -1(a0), .Llast_fixup\@)
|
||||
#endif
|
||||
#else
|
||||
#else /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
PTR_SUBU t0, $0, a2
|
||||
.set reorder
|
||||
move a2, zero /* No remaining longs */
|
||||
|
|
@ -211,7 +211,7 @@
|
|||
EX(sb, a1, 6(a0), .Lbyte_fixup\@)
|
||||
#endif
|
||||
0:
|
||||
#endif
|
||||
#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
1: move a2, zero
|
||||
jr ra
|
||||
|
||||
|
|
@ -234,7 +234,7 @@
|
|||
.hidden __memset
|
||||
.endif
|
||||
|
||||
#ifndef CONFIG_CPU_HAS_LOAD_STORE_LR
|
||||
#ifdef CONFIG_CPU_NO_LOAD_STORE_LR
|
||||
.Lbyte_fixup\@:
|
||||
/*
|
||||
* unset_bytes = (#bytes - (#unaligned bytes)) - (-#unaligned bytes remaining + 1) + 1
|
||||
|
|
@ -243,7 +243,7 @@
|
|||
PTR_SUBU a2, t0
|
||||
PTR_ADDIU a2, 1
|
||||
jr ra
|
||||
#endif /* !CONFIG_CPU_HAS_LOAD_STORE_LR */
|
||||
#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */
|
||||
|
||||
.Lfirst_fixup\@:
|
||||
/* unset_bytes already in a2 */
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user