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Microblaze patches for 4.16-rc1 

- Fix endian handling and Kconfig dependency
 - Fix iounmap prototype
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Merge tag 'microblaze-4.16-rc1' of git://git.monstr.eu/linux-2.6-microblaze

Pull microblaze updates from Michal Simek:

 - Fix endian handling and Kconfig dependency

 - Fix iounmap prototype

* tag 'microblaze-4.16-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Setup proper dependency for optimized lib functions
  microblaze: fix iounmap prototype
  microblaze: fix endian handling
This commit is contained in:
Linus Torvalds 2018-02-02 09:48:36 -08:00
parent 4bf772b146 7b6ce52be3
commit 44644391ff
4 changed files with 14 additions and 8 deletions
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1
arch/microblaze/Kconfig.platform
View File

@ -8,6 +8,7 @@ menu "Platform options"
config OPT_LIB_FUNCTION
bool "Optimalized lib function"
depends on CPU_LITTLE_ENDIAN
default y
help
Allows turn on optimalized library function (memcpy and memmove).

17
arch/microblaze/Makefile
View File

@ -36,16 +36,21 @@ endif
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
CPUFLAGS-$(CONFIG_BIG_ENDIAN) += -mbig-endian
CPUFLAGS-$(CONFIG_LITTLE_ENDIAN) += -mlittle-endian
ifdef CONFIG_CPU_BIG_ENDIAN
KBUILD_CFLAGS += -mbig-endian
KBUILD_AFLAGS += -mbig-endian
LD += -EB
else
KBUILD_CFLAGS += -mlittle-endian
KBUILD_AFLAGS += -mlittle-endian
LD += -EL
endif
CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
# r31 holds current when in kernel mode
KBUILD_CFLAGS += -ffixed-r31 $(CPUFLAGS-1) $(CPUFLAGS-2)
LDFLAGS :=
LDFLAGS_vmlinux :=
KBUILD_CFLAGS += -ffixed-r31 $(CPUFLAGS-y) $(CPUFLAGS-1) $(CPUFLAGS-2)
head-y := arch/microblaze/kernel/head.o
libs-y += arch/microblaze/lib/

2
arch/microblaze/include/asm/io.h
View File

@ -36,7 +36,7 @@ extern resource_size_t isa_mem_base;
#ifdef CONFIG_MMU
#define page_to_bus(page) (page_to_phys(page))
extern void iounmap(void __iomem *addr);
extern void iounmap(volatile void __iomem *addr);
extern void __iomem *ioremap(phys_addr_t address, unsigned long size);
#define ioremap_nocache(addr, size) ioremap((addr), (size))

2
arch/microblaze/mm/pgtable.c
View File

@ -127,7 +127,7 @@ void __iomem *ioremap(phys_addr_t addr, unsigned long size)
}
EXPORT_SYMBOL(ioremap);
void iounmap(void __iomem *addr)
void iounmap(volatile void __iomem *addr)
{
if ((__force void *)addr > high_memory &&
(unsigned long) addr < ioremap_bot)