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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-25 16:53:11 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-25 16:53:11 -0700
commite0e170bd7ded2ec16e2813d63c0faff43193fde8 (patch)
tree2f06008b61ef2eedf8f77d1326e286a64e426ef6 /arch
parentb20f9e5bddddb5ef0d743d6e0d409ffc8cf9fc56 (diff)
parentb843e4ec01991a386a9e0e9030703524446e03da (diff)
Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze
* 'next' of git://git.monstr.eu/linux-2.6-microblaze: (42 commits) microblaze: Fix build with make 3.82 fbdev/xilinxfb: Microblaze driver support microblaze: Support C optimized lib functions for little-endian microblaze: Separate library optimized functions microblaze: Support timer on AXI lite microblaze: Add support for little-endian Microblaze microblaze: KGDB little endian support microblaze: Add PVR for endians plus detection net: emaclite: Add support for little-endian platforms microblaze: trivial: Add comment for AXI pvr microblaze: pci-common cleanup microblaze: Support early console on uart16550 microblaze: Do not compile early console support for uartlite if is disabled microblaze: Setup early console dynamically microblaze: Rename all uartlite early printk functions microblaze: remove early printk uarlite console dependency from header microblaze: Remove additional compatible properties microblaze: Remove hardcoded asm instraction for PVR loading microblaze: Use static const char * const where possible microblaze: Define VMALLOC_START/END ...
Diffstat (limited to 'arch')
-rw-r--r--arch/microblaze/Kconfig17
-rw-r--r--arch/microblaze/Kconfig.debug2
-rw-r--r--arch/microblaze/Makefile11
-rw-r--r--arch/microblaze/include/asm/byteorder.h4
-rw-r--r--arch/microblaze/include/asm/checksum.h9
-rw-r--r--arch/microblaze/include/asm/cpuinfo.h5
-rw-r--r--arch/microblaze/include/asm/elf.h2
-rw-r--r--arch/microblaze/include/asm/gpio.h5
-rw-r--r--arch/microblaze/include/asm/io.h2
-rw-r--r--arch/microblaze/include/asm/page.h3
-rw-r--r--arch/microblaze/include/asm/pci.h2
-rw-r--r--arch/microblaze/include/asm/pgalloc.h3
-rw-r--r--arch/microblaze/include/asm/pgtable.h7
-rw-r--r--arch/microblaze/include/asm/prom.h1
-rw-r--r--arch/microblaze/include/asm/pvr.h14
-rw-r--r--arch/microblaze/include/asm/seccomp.h16
-rw-r--r--arch/microblaze/include/asm/setup.h6
-rw-r--r--arch/microblaze/include/asm/thread_info.h20
-rw-r--r--arch/microblaze/include/asm/unaligned.h12
-rw-r--r--arch/microblaze/include/asm/unistd.h5
-rw-r--r--arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c1
-rw-r--r--arch/microblaze/kernel/cpu/cpuinfo-static.c1
-rw-r--r--arch/microblaze/kernel/cpu/cpuinfo.c2
-rw-r--r--arch/microblaze/kernel/cpu/mb.c3
-rw-r--r--arch/microblaze/kernel/cpu/pvr.c2
-rw-r--r--arch/microblaze/kernel/early_printk.c87
-rw-r--r--arch/microblaze/kernel/entry.S21
-rw-r--r--arch/microblaze/kernel/exceptions.c25
-rw-r--r--arch/microblaze/kernel/heartbeat.c11
-rw-r--r--arch/microblaze/kernel/intc.c14
-rw-r--r--arch/microblaze/kernel/kgdb.c7
-rw-r--r--arch/microblaze/kernel/microblaze_ksyms.c32
-rw-r--r--arch/microblaze/kernel/prom.c39
-rw-r--r--arch/microblaze/kernel/setup.c6
-rw-r--r--arch/microblaze/kernel/syscall_table.S3
-rw-r--r--arch/microblaze/kernel/timer.c41
-rw-r--r--arch/microblaze/kernel/vmlinux.lds.S5
-rw-r--r--arch/microblaze/lib/Makefile10
-rw-r--r--arch/microblaze/lib/ashldi3.c29
-rw-r--r--arch/microblaze/lib/ashrdi3.c31
-rw-r--r--arch/microblaze/lib/divsi3.S73
-rw-r--r--arch/microblaze/lib/libgcc.h25
-rw-r--r--arch/microblaze/lib/lshrdi3.c29
-rw-r--r--arch/microblaze/lib/memcpy.c46
-rw-r--r--arch/microblaze/lib/memmove.c59
-rw-r--r--arch/microblaze/lib/memset.c22
-rw-r--r--arch/microblaze/lib/modsi3.S73
-rw-r--r--arch/microblaze/lib/muldi3.S121
-rw-r--r--arch/microblaze/lib/mulsi3.S46
-rw-r--r--arch/microblaze/lib/udivsi3.S84
-rw-r--r--arch/microblaze/lib/umodsi3.S86
-rw-r--r--arch/microblaze/pci/pci-common.c21
-rw-r--r--arch/microblaze/platform/generic/system.dts3
-rw-r--r--arch/microblaze/platform/platform.c3
54 files changed, 1016 insertions, 191 deletions
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 692fdfce2a23..dad40fc2bef8 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -121,6 +121,23 @@ config CMDLINE_FORCE
Set this to have arguments from the default kernel command string
override those passed by the boot loader.
+config SECCOMP
+ bool "Enable seccomp to safely compute untrusted bytecode"
+ depends on PROC_FS
+ default y
+ help
+ This kernel feature is useful for number crunching applications
+ that may need to compute untrusted bytecode during their
+ execution. By using pipes or other transports made available to
+ the process as file descriptors supporting the read/write
+ syscalls, it's possible to isolate those applications in
+ their own address space using seccomp. Once seccomp is
+ enabled via /proc/<pid>/seccomp, it cannot be disabled
+ and the task is only allowed to execute a few safe syscalls
+ defined by each seccomp mode.
+
+ If unsure, say Y. Only embedded should say N here.
+
endmenu
menu "Advanced setup"
diff --git a/arch/microblaze/Kconfig.debug b/arch/microblaze/Kconfig.debug
index e6e5e0da28c3..e66e25c4b0b2 100644
--- a/arch/microblaze/Kconfig.debug
+++ b/arch/microblaze/Kconfig.debug
@@ -10,7 +10,7 @@ source "lib/Kconfig.debug"
config EARLY_PRINTK
bool "Early printk function for kernel"
- depends on SERIAL_UARTLITE_CONSOLE
+ depends on SERIAL_UARTLITE_CONSOLE || SERIAL_8250_CONSOLE
default n
help
This option turns on/off early printk messages to console.
diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile
index 592c7079de88..15f1f1d1840d 100644
--- a/arch/microblaze/Makefile
+++ b/arch/microblaze/Makefile
@@ -42,11 +42,8 @@ KBUILD_CFLAGS += -ffixed-r31 $(CPUFLAGS-1) $(CPUFLAGS-2)
LDFLAGS :=
LDFLAGS_vmlinux :=
-LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
-
head-y := arch/microblaze/kernel/head.o
libs-y += arch/microblaze/lib/
-libs-y += $(LIBGCC)
core-y += arch/microblaze/kernel/
core-y += arch/microblaze/mm/
core-y += arch/microblaze/platform/
@@ -72,12 +69,16 @@ export MMU DTB
all: linux.bin
-BOOT_TARGETS = linux.bin linux.bin.gz simpleImage.%
+# With make 3.82 we cannot mix normal and wildcard targets
+BOOT_TARGETS1 = linux.bin linux.bin.gz
+BOOT_TARGETS2 = simpleImage.%
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
-$(BOOT_TARGETS): vmlinux
+$(BOOT_TARGETS1): vmlinux
+ $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+$(BOOT_TARGETS2): vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
define archhelp
diff --git a/arch/microblaze/include/asm/byteorder.h b/arch/microblaze/include/asm/byteorder.h
index ce9c58732ffc..31902762a426 100644
--- a/arch/microblaze/include/asm/byteorder.h
+++ b/arch/microblaze/include/asm/byteorder.h
@@ -1,6 +1,10 @@
#ifndef _ASM_MICROBLAZE_BYTEORDER_H
#define _ASM_MICROBLAZE_BYTEORDER_H
+#ifdef __MICROBLAZEEL__
+#include <linux/byteorder/little_endian.h>
+#else
#include <linux/byteorder/big_endian.h>
+#endif
#endif /* _ASM_MICROBLAZE_BYTEORDER_H */
diff --git a/arch/microblaze/include/asm/checksum.h b/arch/microblaze/include/asm/checksum.h
index 128bf03b54b7..0185cbefdda4 100644
--- a/arch/microblaze/include/asm/checksum.h
+++ b/arch/microblaze/include/asm/checksum.h
@@ -24,8 +24,13 @@ csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
"addc %0, %0, %3\n\t"
"addc %0, %0, r0\n\t"
: "+&d" (sum)
- : "d" (saddr), "d" (daddr), "d" (len + proto));
-
+ : "d" (saddr), "d" (daddr),
+#ifdef __MICROBLAZEEL__
+ "d" ((len + proto) << 8)
+#else
+ "d" (len + proto)
+#endif
+);
return sum;
}
diff --git a/arch/microblaze/include/asm/cpuinfo.h b/arch/microblaze/include/asm/cpuinfo.h
index b4f5ca33aebf..cd257537ae54 100644
--- a/arch/microblaze/include/asm/cpuinfo.h
+++ b/arch/microblaze/include/asm/cpuinfo.h
@@ -38,6 +38,7 @@ struct cpuinfo {
u32 use_exc;
u32 ver_code;
u32 mmu;
+ u32 endian;
/* CPU caches */
u32 use_icache;
@@ -76,7 +77,6 @@ struct cpuinfo {
u32 num_rd_brk;
u32 num_wr_brk;
u32 cpu_clock_freq; /* store real freq of cpu */
- u32 freq_div_hz; /* store freq/HZ */
/* FPGA family */
u32 fpga_family_code;
@@ -97,7 +97,8 @@ void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu);
static inline unsigned int fcpu(struct device_node *cpu, char *n)
{
int *val;
- return (val = (int *) of_get_property(cpu, n, NULL)) ? *val : 0;
+ return (val = (int *) of_get_property(cpu, n, NULL)) ?
+ be32_to_cpup(val) : 0;
}
#endif /* _ASM_MICROBLAZE_CPUINFO_H */
diff --git a/arch/microblaze/include/asm/elf.h b/arch/microblaze/include/asm/elf.h
index 732caf1be741..098dfdde4b06 100644
--- a/arch/microblaze/include/asm/elf.h
+++ b/arch/microblaze/include/asm/elf.h
@@ -71,7 +71,7 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
#define ELF_ET_DYN_BASE (0x08000000)
-#ifdef __LITTLE_ENDIAN__
+#ifdef __MICROBLAZEEL__
#define ELF_DATA ELFDATA2LSB
#else
#define ELF_DATA ELFDATA2MSB
diff --git a/arch/microblaze/include/asm/gpio.h b/arch/microblaze/include/asm/gpio.h
index 2345ac354d9b..2b2c18be71c6 100644
--- a/arch/microblaze/include/asm/gpio.h
+++ b/arch/microblaze/include/asm/gpio.h
@@ -38,12 +38,9 @@ static inline int gpio_cansleep(unsigned int gpio)
return __gpio_cansleep(gpio);
}
-/*
- * Not implemented, yet.
- */
static inline int gpio_to_irq(unsigned int gpio)
{
- return -ENOSYS;
+ return __gpio_to_irq(gpio);
}
static inline int irq_to_gpio(unsigned int irq)
diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
index 00b5398d08c7..eae32220f447 100644
--- a/arch/microblaze/include/asm/io.h
+++ b/arch/microblaze/include/asm/io.h
@@ -243,6 +243,8 @@ static inline void __iomem *__ioremap(phys_addr_t address, unsigned long size,
#define out_8(a, v) __raw_writeb((v), (a))
#define in_8(a) __raw_readb(a)
+#define mmiowb()
+
#define ioport_map(port, nr) ((void __iomem *)(port))
#define ioport_unmap(addr)
diff --git a/arch/microblaze/include/asm/page.h b/arch/microblaze/include/asm/page.h
index cf377d91da71..ed9d0f6e2cdb 100644
--- a/arch/microblaze/include/asm/page.h
+++ b/arch/microblaze/include/asm/page.h
@@ -205,9 +205,6 @@ extern int page_is_ram(unsigned long pfn);
#define TOPHYS(addr) __virt_to_phys(addr)
#ifdef CONFIG_MMU
-#ifdef CONFIG_CONTIGUOUS_PAGE_ALLOC
-#define WANT_PAGE_VIRTUAL 1 /* page alloc 2 relies on this */
-#endif
#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h
index 5a388eeeb28f..2232ff942ba9 100644
--- a/arch/microblaze/include/asm/pci.h
+++ b/arch/microblaze/include/asm/pci.h
@@ -165,5 +165,7 @@ extern void __init xilinx_pci_init(void);
static inline void __init xilinx_pci_init(void) { return; }
#endif
+#include <asm-generic/pci-dma-compat.h>
+
#endif /* __KERNEL__ */
#endif /* __ASM_MICROBLAZE_PCI_H */
diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h
index c614a893f8a3..ebd35792482c 100644
--- a/arch/microblaze/include/asm/pgalloc.h
+++ b/arch/microblaze/include/asm/pgalloc.h
@@ -165,7 +165,8 @@ extern inline void pte_free(struct mm_struct *mm, struct page *ptepage)
#define __pte_free_tlb(tlb, pte, addr) pte_free((tlb)->mm, (pte))
-#define pmd_populate(mm, pmd, pte) (pmd_val(*(pmd)) = page_address(pte))
+#define pmd_populate(mm, pmd, pte) \
+ (pmd_val(*(pmd)) = (unsigned long)page_address(pte))
#define pmd_populate_kernel(mm, pmd, pte) \
(pmd_val(*(pmd)) = (unsigned long) (pte))
diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h
index ca2d92871545..d4f421672d3b 100644
--- a/arch/microblaze/include/asm/pgtable.h
+++ b/arch/microblaze/include/asm/pgtable.h
@@ -57,6 +57,13 @@ static inline int pte_file(pte_t pte) { return 0; }
#define pgprot_noncached_wc(prot) prot
+/*
+ * All 32bit addresses are effectively valid for vmalloc...
+ * Sort of meaningless for non-VM targets.
+ */
+#define VMALLOC_START 0
+#define VMALLOC_END 0xffffffff
+
#else /* CONFIG_MMU */
#include <asm-generic/4level-fixup.h>
diff --git a/arch/microblaze/include/asm/prom.h b/arch/microblaze/include/asm/prom.h
index 101fa098f62a..bdc38312ae4a 100644
--- a/arch/microblaze/include/asm/prom.h
+++ b/arch/microblaze/include/asm/prom.h
@@ -27,6 +27,7 @@
/* Other Prototypes */
extern int early_uartlite_console(void);
+extern int early_uart16550_console(void);
#ifdef CONFIG_PCI
/*
diff --git a/arch/microblaze/include/asm/pvr.h b/arch/microblaze/include/asm/pvr.h
index 9578666e98ba..37db96a15b45 100644
--- a/arch/microblaze/include/asm/pvr.h
+++ b/arch/microblaze/include/asm/pvr.h
@@ -30,7 +30,9 @@ struct pvr_s {
#define PVR0_USE_EXC_MASK 0x04000000
#define PVR0_USE_ICACHE_MASK 0x02000000
#define PVR0_USE_DCACHE_MASK 0x01000000
-#define PVR0_USE_MMU 0x00800000 /* new */
+#define PVR0_USE_MMU 0x00800000
+#define PVR0_USE_BTC 0x00400000
+#define PVR0_ENDI 0x00200000
#define PVR0_VERSION_MASK 0x0000FF00
#define PVR0_USER1_MASK 0x000000FF
@@ -38,9 +40,9 @@ struct pvr_s {
#define PVR1_USER2_MASK 0xFFFFFFFF
/* Configuration PVR masks */
-#define PVR2_D_OPB_MASK 0x80000000
+#define PVR2_D_OPB_MASK 0x80000000 /* or AXI */
#define PVR2_D_LMB_MASK 0x40000000
-#define PVR2_I_OPB_MASK 0x20000000
+#define PVR2_I_OPB_MASK 0x20000000 /* or AXI */
#define PVR2_I_LMB_MASK 0x10000000
#define PVR2_INTERRUPT_IS_EDGE_MASK 0x08000000
#define PVR2_EDGE_IS_POSITIVE_MASK 0x04000000
@@ -63,8 +65,8 @@ struct pvr_s {
#define PVR2_OPCODE_0x0_ILL_MASK 0x00000040
#define PVR2_UNALIGNED_EXC_MASK 0x00000020
#define PVR2_ILL_OPCODE_EXC_MASK 0x00000010
-#define PVR2_IOPB_BUS_EXC_MASK 0x00000008
-#define PVR2_DOPB_BUS_EXC_MASK 0x00000004
+#define PVR2_IOPB_BUS_EXC_MASK 0x00000008 /* or AXI */
+#define PVR2_DOPB_BUS_EXC_MASK 0x00000004 /* or AXI */
#define PVR2_DIV_ZERO_EXC_MASK 0x00000002
#define PVR2_FPU_EXC_MASK 0x00000001
@@ -208,6 +210,8 @@ struct pvr_s {
#define PVR_MMU_TLB_ACCESS(pvr) (pvr.pvr[11] & PVR11_MMU_TLB_ACCESS)
#define PVR_MMU_ZONES(pvr) (pvr.pvr[11] & PVR11_MMU_ZONES)
+/* endian */
+#define PVR_ENDIAN(pvr) (pvr.pvr[0] & PVR0_ENDI)
int cpu_has_pvr(void);
void get_pvr(struct pvr_s *pvr);
diff --git a/arch/microblaze/include/asm/seccomp.h b/arch/microblaze/include/asm/seccomp.h
new file mode 100644
index 000000000000..0d912758a0d7
--- /dev/null
+++ b/arch/microblaze/include/asm/seccomp.h
@@ -0,0 +1,16 @@
+#ifndef _ASM_MICROBLAZE_SECCOMP_H
+#define _ASM_MICROBLAZE_SECCOMP_H
+
+#include <linux/unistd.h>
+
+#define __NR_seccomp_read __NR_read
+#define __NR_seccomp_write __NR_write
+#define __NR_seccomp_exit __NR_exit
+#define __NR_seccomp_sigreturn __NR_sigreturn
+
+#define __NR_seccomp_read_32 __NR_read
+#define __NR_seccomp_write_32 __NR_write
+#define __NR_seccomp_exit_32 __NR_exit
+#define __NR_seccomp_sigreturn_32 __NR_sigreturn
+
+#endif /* _ASM_MICROBLAZE_SECCOMP_H */
diff --git a/arch/microblaze/include/asm/setup.h b/arch/microblaze/include/asm/setup.h
index 782b5c89248e..8f3968971e4e 100644
--- a/arch/microblaze/include/asm/setup.h
+++ b/arch/microblaze/include/asm/setup.h
@@ -25,6 +25,12 @@ void early_printk(const char *fmt, ...);
int setup_early_printk(char *opt);
void disable_early_printk(void);
+#if defined(CONFIG_EARLY_PRINTK)
+#define eprintk early_printk
+#else
+#define eprintk printk
+#endif
+
void heartbeat(void);
void setup_heartbeat(void);
diff --git a/arch/microblaze/include/asm/thread_info.h b/arch/microblaze/include/asm/thread_info.h
index 8a8e9fc6e0c0..b73da2ac21b3 100644
--- a/arch/microblaze/include/asm/thread_info.h
+++ b/arch/microblaze/include/asm/thread_info.h
@@ -127,23 +127,19 @@ static inline struct thread_info *current_thread_info(void)
#define TIF_SECCOMP 10 /* secure computing */
#define TIF_FREEZE 14 /* Freezing for suspend */
-/* FIXME change in entry.S */
-#define TIF_KERNEL_TRACE 8 /* kernel trace active */
-
/* true if poll_idle() is polling TIF_NEED_RESCHED */
#define TIF_POLLING_NRFLAG 16
-#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
-#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
-#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
-#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
-#define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP)
-#define _TIF_IRET (1<<TIF_IRET)
-#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
-#define _TIF_FREEZE (1<<TIF_FREEZE)
+#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
+#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
+#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
+#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
+#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
+#define _TIF_IRET (1 << TIF_IRET)
+#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
+#define _TIF_FREEZE (1 << TIF_FREEZE)
#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
#define _TIF_SECCOMP (1 << TIF_SECCOMP)
-#define _TIF_KERNEL_TRACE (1 << TIF_KERNEL_TRACE)
/* work to do in syscall trace */
#define _TIF_WORK_SYSCALL_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \
diff --git a/arch/microblaze/include/asm/unaligned.h b/arch/microblaze/include/asm/unaligned.h
index 3658d91ac0fb..2b97cbe500e9 100644
--- a/arch/microblaze/include/asm/unaligned.h
+++ b/arch/microblaze/include/asm/unaligned.h
@@ -12,12 +12,18 @@
# ifdef __KERNEL__
-# include <linux/unaligned/be_struct.h>
+# include <linux/unaligned/be_byteshift.h>
# include <linux/unaligned/le_byteshift.h>
# include <linux/unaligned/generic.h>
-# define get_unaligned __get_unaligned_be
-# define put_unaligned __put_unaligned_be
+
+# ifdef __MICROBLAZEEL__
+# define get_unaligned __get_unaligned_le
+# define put_unaligned __put_unaligned_le
+# else
+# define get_unaligned __get_unaligned_be
+# define put_unaligned __put_unaligned_be
+# endif
# endif /* __KERNEL__ */
#endif /* _ASM_MICROBLAZE_UNALIGNED_H */
diff --git a/arch/microblaze/include/asm/unistd.h b/arch/microblaze/include/asm/unistd.h
index 2b67e92a773c..d770b00ec6b1 100644
--- a/arch/microblaze/include/asm/unistd.h
+++ b/arch/microblaze/include/asm/unistd.h
@@ -383,8 +383,11 @@
#define __NR_rt_tgsigqueueinfo 365 /* new */
#define __NR_perf_event_open 366 /* new */
#define __NR_recvmmsg 367 /* new */
+#define __NR_fanotify_init 368
+#define __NR_fanotify_mark 369
+#define __NR_prlimit64 370
-#define __NR_syscalls 368
+#define __NR_syscalls 371
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
diff --git a/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c b/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c
index f72dbd66c844..f70a6047f08e 100644
--- a/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c
+++ b/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c
@@ -72,6 +72,7 @@ void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu)
CI(pvr_user2, USER2);
CI(mmu, USE_MMU);
+ CI(endian, ENDIAN);
CI(use_icache, USE_ICACHE);
CI(icache_tagbits, ICACHE_ADDR_TAG_BITS);
diff --git a/arch/microblaze/kernel/cpu/cpuinfo-static.c b/arch/microblaze/kernel/cpu/cpuinfo-static.c
index 6095aa6b5c88..b16b994ca3d2 100644
--- a/arch/microblaze/kernel/cpu/cpuinfo-static.c
+++ b/arch/microblaze/kernel/cpu/cpuinfo-static.c
@@ -119,6 +119,7 @@ void __init set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu)
ci->pvr_user2 = fcpu(cpu, "xlnx,pvr-user2");
ci->mmu = fcpu(cpu, "xlnx,use-mmu");
+ ci->endian = fcpu(cpu, "xlnx,endianness");
ci->ver_code = 0;
ci->fpga_family_code = 0;
diff --git a/arch/microblaze/kernel/cpu/cpuinfo.c b/arch/microblaze/kernel/cpu/cpuinfo.c
index 255ef880351e..87c79fa275c3 100644
--- a/arch/microblaze/kernel/cpu/cpuinfo.c
+++ b/arch/microblaze/kernel/cpu/cpuinfo.c
@@ -30,6 +30,8 @@ const struct cpu_ver_key cpu_ver_lookup[] = {
{"7.20.c", 0x0e},
{"7.20.d", 0x0f},
{"7.30.a", 0x10},
+ {"7.30.b", 0x11},
+ {"8.00.a", 0x12},
{NULL, 0},
};
diff --git a/arch/microblaze/kernel/cpu/mb.c b/arch/microblaze/kernel/cpu/mb.c
index 7086e3564281..b4048af02615 100644
--- a/arch/microblaze/kernel/cpu/mb.c
+++ b/arch/microblaze/kernel/cpu/mb.c
@@ -51,11 +51,12 @@ static int show_cpuinfo(struct seq_file *m, void *v)
count = seq_printf(m,
"CPU-Family: MicroBlaze\n"
"FPGA-Arch: %s\n"
- "CPU-Ver: %s\n"
+ "CPU-Ver: %s, %s endian\n"
"CPU-MHz: %d.%02d\n"
"BogoMips: %lu.%02lu\n",
fpga_family,
cpu_ver,
+ cpuinfo.endian ? "little" : "big",
cpuinfo.cpu_clock_freq /
1000000,
cpuinfo.cpu_clock_freq %
diff --git a/arch/microblaze/kernel/cpu/pvr.c b/arch/microblaze/kernel/cpu/pvr.c
index 9bee9382bf74..e01afa68273e 100644
--- a/arch/microblaze/kernel/cpu/pvr.c
+++ b/arch/microblaze/kernel/cpu/pvr.c
@@ -27,7 +27,7 @@
register unsigned tmp __asm__("r3"); \
tmp = 0x0; /* Prevent warning about unused */ \
__asm__ __volatile__ ( \
- ".byte 0x94,0x60,0xa0, " #pvrid "\n\t" \
+ "mfs %0, rpvr" #pvrid ";" \
: "=r" (tmp) : : "memory"); \
val = tmp; \
}
diff --git a/arch/microblaze/kernel/early_printk.c b/arch/microblaze/kernel/early_printk.c
index 7de84923ba07..c3616a080ebf 100644
--- a/arch/microblaze/kernel/early_printk.c
+++ b/arch/microblaze/kernel/early_printk.c
@@ -24,7 +24,8 @@
static u32 early_console_initialized;
static u32 base_addr;
-static void early_printk_putc(char c)
+#ifdef CONFIG_SERIAL_UARTLITE_CONSOLE
+static void early_printk_uartlite_putc(char c)
{
/*
* Limit how many times we'll spin waiting for TX FIFO status.
@@ -45,25 +46,70 @@ static void early_printk_putc(char c)
out_be32(base_addr + 4, c & 0xff);
}
-static void early_printk_write(struct console *unused,
+static void early_printk_uartlite_write(struct console *unused,
const char *s, unsigned n)
{
while (*s && n-- > 0) {
- early_printk_putc(*s);
+ early_printk_uartlite_putc(*s);
if (*s == '\n')
- early_printk_putc('\r');
+ early_printk_uartlite_putc('\r');
s++;
}
}
-static struct console early_serial_console = {
+static struct console early_serial_uartlite_console = {
.name = "earlyser",
- .write = early_printk_write,
+ .write = early_printk_uartlite_write,
.flags = CON_PRINTBUFFER,
.index = -1,
};
+#endif /* CONFIG_SERIAL_UARTLITE_CONSOLE */
-static struct console *early_console = &early_serial_console;
+#ifdef CONFIG_SERIAL_8250_CONSOLE
+static void early_printk_uart16550_putc(char c)
+{
+ /*
+ * Limit how many times we'll spin waiting for TX FIFO status.
+ * This will prevent lockups if the base address is incorrectly
+ * set, or any other issue on the UARTLITE.
+ * This limit is pretty arbitrary, unless we are at about 10 baud
+ * we'll never timeout on a working UART.
+ */
+
+ #define UART_LSR_TEMT 0x40 /* Transmitter empty */
+ #define UART_LSR_THRE 0x20 /* Transmit-hold-register empty */
+ #define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
+
+ unsigned retries = 10000;
+
+ while (--retries &&
+ !((in_be32(base_addr + 0x14) & BOTH_EMPTY) == BOTH_EMPTY))
+ ;
+
+ if (retries)
+ out_be32(base_addr, c & 0xff);
+}
+
+static void early_printk_uart16550_write(struct console *unused,
+ const char *s, unsigned n)
+{
+ while (*s && n-- > 0) {
+ early_printk_uart16550_putc(*s);
+ if (*s == '\n')
+ early_printk_uart16550_putc('\r');
+ s++;
+ }
+}
+
+static struct console early_serial_uart16550_console = {
+ .name = "earlyser",
+ .write = early_printk_uart16550_write,
+ .flags = CON_PRINTBUFFER,
+ .index = -1,
+};
+#endif /* CONFIG_SERIAL_8250_CONSOLE */
+
+static struct console *early_console;
void early_printk(const char *fmt, ...)
{
@@ -84,20 +130,43 @@ int __init setup_early_printk(char *opt)
if (early_console_initialized)
return 1;
+#ifdef CONFIG_SERIAL_UARTLITE_CONSOLE
base_addr = early_uartlite_console();
if (base_addr) {
early_console_initialized = 1;
#ifdef CONFIG_MMU
early_console_reg_tlb_alloc(base_addr);
#endif
+ early_console = &early_serial_uartlite_console;
early_printk("early_printk_console is enabled at 0x%08x\n",
base_addr);
/* register_console(early_console); */
return 0;
- } else
- return 1;
+ }
+#endif /* CONFIG_SERIAL_UARTLITE_CONSOLE */
+
+#ifdef CONFIG_SERIAL_8250_CONSOLE
+ base_addr = early_uart16550_console();
+ base_addr &= ~3; /* clear register offset */
+ if (base_addr) {
+ early_console_initialized = 1;
+#ifdef CONFIG_MMU
+ early_console_reg_tlb_alloc(base_addr);
+#endif
+ early_console = &early_serial_uart16550_console;
+
+ early_printk("early_printk_console is enabled at 0x%08x\n",
+ base_addr);
+
+ /* register_console(early_console); */
+
+ return 0;
+ }
+#endif /* CONFIG_SERIAL_8250_CONSOLE */
+
+ return 1;
}
void __init disable_early_printk(void)
diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S
index 304882e56459..819238b8a429 100644
--- a/arch/microblaze/kernel/entry.S
+++ b/arch/microblaze/kernel/entry.S
@@ -186,6 +186,8 @@
swi r13, r1, PTO+PT_R13; /* Save SDA2 */ \
swi r14, r1, PTO+PT_PC; /* PC, before IRQ/trap */ \
swi r15, r1, PTO+PT_R15; /* Save LP */ \
+ swi r16, r1, PTO+PT_R16; \
+ swi r17, r1, PTO+PT_R17; \
swi r18, r1, PTO+PT_R18; /* Save asm scratch reg */ \
swi r19, r1, PTO+PT_R19; \
swi r20, r1, PTO+PT_R20; \
@@ -220,6 +222,8 @@
lwi r13, r1, PTO+PT_R13; /* restore SDA2 */ \
lwi r14, r1, PTO+PT_PC; /* RESTORE_LINK PC, before IRQ/trap */\
lwi r15, r1, PTO+PT_R15; /* restore LP */ \
+ lwi r16, r1, PTO+PT_R16; \
+ lwi r17, r1, PTO+PT_R17; \
lwi r18, r1, PTO+PT_R18; /* restore asm scratch reg */ \
lwi r19, r1, PTO+PT_R19; \
lwi r20, r1, PTO+PT_R20; \
@@ -295,6 +299,8 @@ C_ENTRY(_user_exception):
/* addik r1, r1, -STATE_SAVE_SIZE; */
addik r1, r1, THREAD_SIZE + CONFIG_KERNEL_BASE_ADDR - CONFIG_KERNEL_START - STATE_SAVE_SIZE;
SAVE_REGS
+ swi r0, r1, PTO + PT_R3
+ swi r0, r1, PTO + PT_R4
lwi r11, r0, TOPHYS(PER_CPU(ENTRY_SP));
swi r11, r1, PTO+PT_R1; /* Store user SP. */
@@ -458,14 +464,8 @@ C_ENTRY(sys_execve):
addik r8, r1, PTO; /* add user context as 4th arg */
C_ENTRY(sys_rt_sigreturn_wrapper):
- swi r3, r1, PTO+PT_R3; /* restore saved r3, r4 registers */
- swi r4, r1, PTO+PT_R4;
- brlid r15, sys_rt_sigreturn /* Do real work */
+ brid sys_rt_sigreturn /* Do real work */
addik r5, r1, PTO; /* add user context as 1st arg */
- lwi r3, r1, PTO+PT_R3; /* restore saved r3, r4 registers */
- lwi r4, r1, PTO+PT_R4;
- bri ret_from_trap /* fall through will not work here due to align */
- nop;
/*
* HW EXCEPTION rutine start
@@ -765,9 +765,7 @@ C_ENTRY(_debug_exception):
/* save all regs to pt_reg structure */
swi r0, r1, PTO+PT_R0; /* R0 must be saved too */
swi r14, r1, PTO+PT_R14 /* rewrite saved R14 value */
- swi r16, r1, PTO+PT_R16
swi r16, r1, PTO+PT_PC; /* PC and r16 are the same */
- swi r17, r1, PTO+PT_R17
/* save special purpose registers to pt_regs */
mfs r11, rear;
swi r11, r1, PTO+PT_EAR;
@@ -801,8 +799,6 @@ C_ENTRY(_debug_exception):
addik r1, r1, -STATE_SAVE_SIZE; /* Make room on the stack. */
SAVE_REGS;
- swi r17, r1, PTO+PT_R17;
- swi r16, r1, PTO+PT_R16;
swi r16, r1, PTO+PT_PC; /* Save LP */
swi r0, r1, PTO + PT_MODE; /* Was in user-mode. */
lwi r11, r0, TOPHYS(PER_CPU(ENTRY_SP));
@@ -848,8 +844,6 @@ dbtrap_call: /* Return point for kernel/user entry + 8 because of rtsd r15, 8 */
tophys(r1,r1);
/* MS: Restore all regs */
RESTORE_REGS
- lwi r17, r1, PTO+PT_R17;
- lwi r16, r1, PTO+PT_R16;
addik r1, r1, STATE_SAVE_SIZE /* Clean up stack space */
lwi r1, r1, PT_R1 - PT_SIZE; /* Restore user stack pointer */
DBTRAP_return_user: /* MS: Make global symbol for debugging */
@@ -863,7 +857,6 @@ DBTRAP_return_user: /* MS: Make global symbol for debugging */
RESTORE_REGS
lwi r14, r1, PTO+PT_R14;
lwi r16, r1, PTO+PT_PC;
- lwi r17, r1, PTO+PT_R17;
addik r1, r1, STATE_SAVE_SIZE; /* MS: Clean up stack space */
tovirt(r1,r1);
DBTRAP_return_kernel: /* MS: Make global symbol for debugging */
diff --git a/arch/microblaze/kernel/exceptions.c b/arch/microblaze/kernel/exceptions.c
index b98ee8d0c1cd..478f2943ede7 100644
--- a/arch/microblaze/kernel/exceptions.c
+++ b/arch/microblaze/kernel/exceptions.c
@@ -72,7 +72,6 @@ asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,
int fsr, int addr)
{
#ifdef CONFIG_MMU
- int code;
addr = regs->pc;
#endif
@@ -86,8 +85,7 @@ asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,
switch (type & 0x1F) {
case MICROBLAZE_ILL_OPCODE_EXCEPTION:
if (user_mode(regs)) {
- pr_debug(KERN_WARNING "Illegal opcode exception " \
- "in user mode.\n");
+ pr_debug("Illegal opcode exception in user mode\n");
_exception(SIGILL, regs, ILL_ILLOPC, addr);
return;
}
@@ -97,8 +95,7 @@ asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,
break;
case MICROBLAZE_IBUS_EXCEPTION:
if (user_mode(regs)) {
- pr_debug(KERN_WARNING "Instruction bus error " \
- "exception in user mode.\n");
+ pr_debug("Instruction bus error exception in user mode\n");
_exception(SIGBUS, regs, BUS_ADRERR, addr);
return;
}
@@ -108,8 +105,7 @@ asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,
break;
case MICROBLAZE_DBUS_EXCEPTION:
if (user_mode(regs)) {
- pr_debug(KERN_WARNING "Data bus error exception " \
- "in user mode.\n");
+ pr_debug("Data bus error exception in user mode\n");
_exception(SIGBUS, regs, BUS_ADRERR, addr);
return;
}
@@ -119,8 +115,7 @@ asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,
break;
case MICROBLAZE_DIV_ZERO_EXCEPTION:
if (user_mode(regs)) {
- pr_debug(KERN_WARNING "Divide by zero exception " \
- "in user mode\n");
+ pr_debug("Divide by zero exception in user mode\n");
_exception(SIGILL, regs, FPE_INTDIV, addr);
return;
}
@@ -129,7 +124,7 @@ asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,
die("Divide by zero exception", regs, SIGBUS);
break;
case MICROBLAZE_FPU_EXCEPTION:
- pr_debug(KERN_WARNING "FPU exception\n");
+ pr_debug("FPU exception\n");
/* IEEE FP exception */
/* I removed fsr variable and use code var for storing fsr */
if (fsr & FSR_IO)
@@ -147,14 +142,8 @@ asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,
#ifdef CONFIG_MMU
case MICROBLAZE_PRIVILEGED_EXCEPTION:
- pr_debug(KERN_WARNING "Privileged exception\n");
- /* "brk r0,r0" - used as debug breakpoint - old toolchain */
- if (get_user(code, (unsigned long *)regs->pc) == 0
- && code == 0x980c0000) {
- _exception(SIGTRAP, regs, TRAP_BRKPT, addr);
- } else {
- _exception(SIGILL, regs, ILL_PRVOPC, addr);
- }
+ pr_debug("Privileged exception\n");
+ _exception(SIGILL, regs, ILL_PRVOPC, addr);
break;
#endif
default:
diff --git a/arch/microblaze/kernel/heartbeat.c b/arch/microblaze/kernel/heartbeat.c
index 522751737cfa..154756f3c694 100644
--- a/arch/microblaze/kernel/heartbeat.c
+++ b/arch/microblaze/kernel/heartbeat.c
@@ -47,11 +47,10 @@ void setup_heartbeat(void)
struct device_node *gpio = NULL;
int *prop;
int j;
- char *gpio_list[] = {
- "xlnx,xps-gpio-1.00.a",
- "xlnx,opb-gpio-1.00.a",
- NULL
- };
+ const char * const gpio_list[] = {
+ "xlnx,xps-gpio-1.00.a",
+ NULL
+ };
for (j = 0; gpio_list[j] != NULL; j++) {
gpio = of_find_compatible_node(NULL, NULL, gpio_list[j]);
@@ -60,7 +59,7 @@ void setup_heartbeat(void)
}
if (gpio) {
- base_addr = *(int *) of_get_property(gpio, "reg", NULL);
+ base_addr = be32_to_cpup(of_get_property(gpio, "reg", NULL));
base_addr = (unsigned long) ioremap(base_addr, PAGE_SIZE);
printk(KERN_NOTICE "Heartbeat GPIO at 0x%x\n", base_addr);
diff --git a/arch/microblaze/kernel/intc.c b/arch/microblaze/kernel/intc.c
index 03172c1da770..d61ea33aff7c 100644
--- a/arch/microblaze/kernel/intc.c
+++ b/arch/microblaze/kernel/intc.c
@@ -126,11 +126,8 @@ void __init init_IRQ(void)
0
};
#endif
- static char *intc_list[] = {
+ const char * const intc_list[] = {
"xlnx,xps-intc-1.00.a",
- "xlnx,opb-intc-1.00.c",
- "xlnx,opb-intc-1.00.b",
- "xlnx,opb-intc-1.00.a",
NULL
};
@@ -141,12 +138,15 @@ void __init init_IRQ(void)
}
BUG_ON(!intc);
- intc_baseaddr = *(int *) of_get_property(intc, "reg", NULL);
+ intc_baseaddr = be32_to_cpup(of_get_property(intc,
+ "reg", NULL));
intc_baseaddr = (unsigned long) ioremap(intc_baseaddr, PAGE_SIZE);
- nr_irq = *(int *) of_get_property(intc, "xlnx,num-intr-inputs", NULL);
+ nr_irq = be32_to_cpup(of_get_property(intc,
+ "xlnx,num-intr-inputs", NULL));
intr_type =
- *(int *) of_get_property(intc, "xlnx,kind-of-intr", NULL);
+ be32_to_cpup(of_get_property(intc,
+ "xlnx,kind-of-intr", NULL));
if (intr_type >= (1 << (nr_irq + 1)))
printk(KERN_INFO " ERROR: Mismatch in kind-of-intr param\n");
diff --git a/arch/microblaze/kernel/kgdb.c b/arch/microblaze/kernel/kgdb.c
index bfc006b7f2d8..09a5e8286137 100644
--- a/arch/microblaze/kernel/kgdb.c
+++ b/arch/microblaze/kernel/kgdb.c
@@ -80,7 +80,7 @@ void gdb_regs_to_pt_regs(unsigned long *gdb_regs, struct pt_regs *regs)
void microblaze_kgdb_break(struct pt_regs *regs)
{
if (kgdb_handle_exception(1, SIGTRAP, 0, regs) != 0)
- return 0;
+ return;
/* Jump over the first arch_kgdb_breakpoint which is barrier to
* get kgdb work. The same solution is used for powerpc */
@@ -114,7 +114,6 @@ int kgdb_arch_handle_exception(int vector, int signo, int err_code,
{
char *ptr;
unsigned long address;
- int cpu = smp_processor_id();
switch (remcom_in_buffer[0]) {
case 'c':
@@ -143,5 +142,9 @@ void kgdb_arch_exit(void)
* Global data
*/
struct kgdb_arch arch_kgdb_ops = {
+#ifdef __MICROBLAZEEL__
+ .gdb_bpt_instr = {0x18, 0x00, 0x0c, 0xba}, /* brki r16, 0x18 */
+#else
.gdb_bpt_instr = {0xba, 0x0c, 0x00, 0x18}, /* brki r16, 0x18 */
+#endif
};
diff --git a/arch/microblaze/kernel/microblaze_ksyms.c b/arch/microblaze/kernel/microblaze_ksyms.c
index ff85f7718035..5cb034174005 100644
--- a/arch/microblaze/kernel/microblaze_ksyms.c
+++ b/arch/microblaze/kernel/microblaze_ksyms.c
@@ -15,37 +15,13 @@
#include <linux/syscalls.h>
#include <asm/checksum.h>
+#include <asm/cacheflush.h>
#include <linux/io.h>
#include <asm/page.h>
#include <asm/system.h>
#include <linux/ftrace.h>
#include <linux/uaccess.h>
-/*
- * libgcc functions - functions that are used internally by the
- * compiler... (prototypes are not correct though, but that
- * doesn't really matter since they're not versioned).
- */
-extern void __ashldi3(void);
-EXPORT_SYMBOL(__ashldi3);
-extern void __ashrdi3(void);
-EXPORT_SYMBOL(__ashrdi3);
-extern void __divsi3(void);
-EXPORT_SYMBOL(__divsi3);
-extern void __lshrdi3(void);
-EXPORT_SYMBOL(__lshrdi3);
-extern void __modsi3(void);
-EXPORT_SYMBOL(__modsi3);
-extern void __mulsi3(void);
-EXPORT_SYMBOL(__mulsi3);
-extern void __muldi3(void);
-EXPORT_SYMBOL(__muldi3);
-extern void __ucmpdi2(void);
-EXPORT_SYMBOL(__ucmpdi2);
-extern void __udivsi3(void);
-EXPORT_SYMBOL(__udivsi3);
-extern void __umodsi3(void);
-EXPORT_SYMBOL(__umodsi3);
extern char *_ebss;
EXPORT_SYMBOL_GPL(_ebss);
#ifdef CONFIG_FUNCTION_TRACER
@@ -63,3 +39,9 @@ EXPORT_SYMBOL(__strncpy_user);
EXPORT_SYMBOL(memcpy);
EXPORT_SYMBOL(memmove);
#endif
+
+#ifdef CONFIG_MMU
+EXPORT_SYMBOL(empty_zero_page);
+#endif
+
+EXPORT_SYMBOL(mbc);
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index bacbd3d41ec7..a105301e2b7f 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -72,11 +72,12 @@ static int __init early_init_dt_scan_serial(unsigned long node,
/* find compatible node with uartlite */
p = of_get_flat_dt_prop(node, "compatible", &l);
if ((strncmp(p, "xlnx,xps-uartlite", 17) != 0) &&
- (strncmp(p, "xlnx,opb-uartlite", 17) != 0))
+ (strncmp(p, "xlnx,opb-uartlite", 17) != 0) &&
+ (strncmp(p, "xlnx,axi-uartlite", 17) != 0))
return 0;
addr = of_get_flat_dt_prop(node, "reg", &l);
- return *addr; /* return address */
+ return be32_to_cpup(addr); /* return address */
}
/* this function is looking for early uartlite console - Microblaze specific */
@@ -84,6 +85,40 @@ int __init early_uartlite_console(void)
{
return of_scan_flat_dt(early_init_dt_scan_serial, NULL);
}
+
+/* MS this is Microblaze specifig function */
+static int __init early_init_dt_scan_serial_full(unsigned long node,
+ const char *uname, int depth, void *data)
+{
+ unsigned long l;
+ char *p;
+ unsigned int addr;
+
+ pr_debug("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
+
+/* find all serial nodes */
+ if (strncmp(uname, "serial", 6) != 0)
+ return 0;
+
+ early_init_dt_check_for_initrd(node);
+
+/* find compatible node with uartlite */
+ p = of_get_flat_dt_prop(node, "compatible", &l);
+
+ if ((strncmp(p, "xlnx,xps-uart16550", 18) != 0) &&
+ (strncmp(p, "xlnx,axi-uart16550", 18) != 0))
+ return 0;
+
+ addr = *(u32 *)of_get_flat_dt_prop(node, "reg", &l);
+ addr += *(u32 *)of_get_flat_dt_prop(node, "reg-offset", &l);
+ return be32_to_cpu(addr); /* return address */
+}
+
+/* this function is looking for early uartlite console - Microblaze specific */
+int __init early_uart16550_console(void)
+{
+ return of_scan_flat_dt(early_init_dt_scan_serial_full, NULL);
+}
#endif
void __init early_init_devtree(void *params)
diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c
index f5f768842354..bb1558e4b283 100644
--- a/arch/microblaze/kernel/setup.c
+++ b/arch/microblaze/kernel/setup.c
@@ -92,12 +92,6 @@ inline unsigned get_romfs_len(unsigned *addr)
}
#endif /* CONFIG_MTD_UCLINUX_EBSS */
-#if defined(CONFIG_EARLY_PRINTK) && defined(CONFIG_SERIAL_UARTLITE_CONSOLE)
-#define eprintk early_printk
-#else
-#define eprintk printk
-#endif
-
void __init machine_early_init(const char *cmdline, unsigned int ram,
unsigned int fdt, unsigned int msr)
{
diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S
index 03376dc814c9..e88a930fd1e3 100644
--- a/arch/microblaze/kernel/syscall_table.S
+++ b/arch/microblaze/kernel/syscall_table.S
@@ -372,3 +372,6 @@ ENTRY(sys_call_table)
.long sys_rt_tgsigqueueinfo /* 365 */
.long sys_perf_event_open
.long sys_recvmmsg
+ .long sys_fanotify_init
+ .long sys_fanotify_mark
+ .long sys_prlimit64 /* 370 */
diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c
index b1380ae93ae1..a5aa33db1df3 100644
--- a/arch/microblaze/kernel/timer.c
+++ b/arch/microblaze/kernel/timer.c
@@ -38,6 +38,9 @@ static unsigned int timer_baseaddr;
#define TIMER_BASE timer_baseaddr
#endif
+unsigned int freq_div_hz;
+unsigned int timer_clock_freq;
+
#define TCSR0 (0x00)
#define TLR0 (0x04)
#define TCR0 (0x08)
@@ -115,7 +118,7 @@ static void microblaze_timer_set_mode(enum clock_event_mode mode,
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
printk(KERN_INFO "%s: periodic\n", __func__);
- microblaze_timer0_start_periodic(cpuinfo.freq_div_hz);
+ microblaze_timer0_start_periodic(freq_div_hz);
break;
case CLOCK_EVT_MODE_ONESHOT:
printk(KERN_INFO "%s: oneshot\n", __func__);
@@ -168,7 +171,7 @@ static struct irqaction timer_irqaction = {
static __init void microblaze_clockevent_init(void)
{
clockevent_microblaze_timer.mult =
- div_sc(cpuinfo.cpu_clock_freq, NSEC_PER_SEC,
+ div_sc(timer_clock_freq, NSEC_PER_SEC,
clockevent_microblaze_timer.shift);
clockevent_microblaze_timer.max_delta_ns =
clockevent_delta2ns((u32)~0, &clockevent_microblaze_timer);
@@ -201,7 +204,7 @@ static struct cyclecounter microblaze_cc = {
int __init init_microblaze_timecounter(void)
{
- microblaze_cc.mult = div_sc(cpuinfo.cpu_clock_freq, NSEC_PER_SEC,
+ microblaze_cc.mult = div_sc(timer_clock_freq, NSEC_PER_SEC,
microblaze_cc.shift);
timecounter_init(&microblaze_tc, &microblaze_cc, sched_clock());
@@ -221,7 +224,7 @@ static struct clocksource clocksource_microblaze = {
static int __init microblaze_clocksource_init(void)
{
clocksource_microblaze.mult =
- clocksource_hz2mult(cpuinfo.cpu_clock_freq,
+ clocksource_hz2mult(timer_clock_freq,
clocksource_microblaze.shift);
if (clocksource_register(&clocksource_microblaze))
panic("failed to register clocksource");
@@ -247,6 +250,7 @@ void __init time_init(void)
u32 irq, i = 0;
u32 timer_num = 1;
struct device_node *timer = NULL;
+ const void *prop;
#ifdef CONFIG_SELFMOD_TIMER
unsigned int timer_baseaddr = 0;
int arr_func[] = {
@@ -258,12 +262,10 @@ void __init time_init(void)
0
};
#endif
- char *timer_list[] = {
- "xlnx,xps-timer-1.00.a",
- "xlnx,opb-timer-1.00.b",
- "xlnx,opb-timer-1.00.a",
- NULL
- };
+ const char * const timer_list[] = {
+ "xlnx,xps-timer-1.00.a",
+ NULL
+ };
for (i = 0; timer_list[i] != NULL; i++) {
timer = of_find_compatible_node(NULL, NULL, timer_list[i]);
@@ -272,13 +274,13 @@ void __init time_init(void)
}
BUG_ON(!timer);
- timer_baseaddr = *(int *) of_get_property(timer, "reg", NULL);
+ timer_baseaddr = be32_to_cpup(of_get_property(timer, "reg", NULL));
timer_baseaddr = (unsigned long) ioremap(timer_baseaddr, PAGE_SIZE);
- irq = *(int *) of_get_property(timer, "interrupts", NULL);
- timer_num =
- *(int *) of_get_property(timer, "xlnx,one-timer-only", NULL);
+ irq = be32_to_cpup(of_get_property(timer, "interrupts", NULL));
+ timer_num = be32_to_cpup(of_get_property(timer,
+ "xlnx,one-timer-only", NULL));
if (timer_num) {
- printk(KERN_EMERG "Please enable two timers in HW\n");
+ eprintk(KERN_EMERG "Please enable two timers in HW\n");
BUG();
}
@@ -288,7 +290,14 @@ void __init time_init(void)
printk(KERN_INFO "%s #0 at 0x%08x, irq=%d\n",
timer_list[i], timer_baseaddr, irq);
- cpuinfo.freq_div_hz = cpuinfo.cpu_clock_freq / HZ;
+ /* If there is clock-frequency property than use it */
+ prop = of_get_property(timer, "clock-frequency", NULL);
+ if (prop)
+ timer_clock_freq = be32_to_cpup(prop);
+ else
+ timer_clock_freq = cpuinfo.cpu_clock_freq;
+
+ freq_div_hz = timer_clock_freq / HZ;
setup_irq(irq, &timer_irqaction);
#ifdef CONFIG_HEART_BEAT
diff --git a/arch/microblaze/kernel/vmlinux.lds.S b/arch/microblaze/kernel/vmlinux.lds.S
index a09f2962fbec..96a88c31fe48 100644
--- a/arch/microblaze/kernel/vmlinux.lds.S
+++ b/arch/microblaze/kernel/vmlinux.lds.S
@@ -8,7 +8,6 @@
* for more details.
*/
-OUTPUT_FORMAT("elf32-microblaze", "elf32-microblaze", "elf32-microblaze")
OUTPUT_ARCH(microblaze)
ENTRY(microblaze_start)
@@ -16,7 +15,11 @@ ENTRY(microblaze_start)
#include <asm-generic/vmlinux.lds.h>
#include <asm/thread_info.h>
+#ifdef __MICROBLAZEEL__
+jiffies = jiffies_64;
+#else
jiffies = jiffies_64 + 4;
+#endif
SECTIONS {
. = CONFIG_KERNEL_START;
diff --git a/arch/microblaze/lib/Makefile b/arch/microblaze/lib/Makefile
index 4dfe47d3cd91..f1fcbff3da25 100644
--- a/arch/microblaze/lib/Makefile
+++ b/arch/microblaze/lib/Makefile
@@ -11,3 +11,13 @@ lib-y += memcpy.o memmove.o
endif
lib-y += uaccess_old.o
+
+lib-y += ashldi3.o
+lib-y += ashrdi3.o
+lib-y += divsi3.o
+lib-y += lshrdi3.o
+lib-y += modsi3.o
+lib-y += muldi3.o
+lib-y += mulsi3.o
+lib-y += udivsi3.o
+lib-y += umodsi3.o
diff --git a/arch/microblaze/lib/ashldi3.c b/arch/microblaze/lib/ashldi3.c
new file mode 100644
index 000000000000..beb80f316095
--- /dev/null
+++ b/arch/microblaze/lib/ashldi3.c
@@ -0,0 +1,29 @@
+#include <linux/module.h>
+
+#include "libgcc.h"
+
+long long __ashldi3(long long u, word_type b)
+{
+ DWunion uu, w;
+ word_type bm;
+
+ if (b == 0)
+ return u;
+
+ uu.ll = u;
+ bm = 32 - b;
+
+ if (bm <= 0) {
+ w.s.low = 0;
+ w.s.high = (unsigned int) uu.s.low << -bm;
+ } else {
+ const unsigned int carries = (unsigned int) uu.s.low >> bm;
+
+ w.s.low = (unsigned int) uu.s.low << b;
+ w.s.high = ((unsigned int) uu.s.high << b) | carries;
+ }
+
+ return w.ll;
+}
+
+EXPORT_SYMBOL(__ashldi3);
diff --git a/arch/microblaze/lib/ashrdi3.c b/arch/microblaze/lib/ashrdi3.c
new file mode 100644
index 000000000000..c884a912b660
--- /dev/null
+++ b/arch/microblaze/lib/ashrdi3.c
@@ -0,0 +1,31 @@
+#include <linux/module.h>
+
+#include "libgcc.h"
+
+long long __ashrdi3(long long u, word_type b)
+{
+ DWunion uu, w;
+ word_type bm;
+
+ if (b == 0)
+ return u;
+
+ uu.ll = u;
+ bm = 32 - b;
+
+ if (bm <= 0) {
+ /* w.s.high = 1..1 or 0..0 */
+ w.s.high =
+ uu.s.high >> 31;
+ w.s.low = uu.s.high >> -bm;
+ } else {
+ const unsigned int carries = (unsigned int) uu.s.high << bm;
+
+ w.s.high = uu.s.high >> b;
+ w.s.low = ((unsigned int) uu.s.low >> b) | carries;
+ }
+
+ return w.ll;
+}
+
+EXPORT_SYMBOL(__ashrdi3);
diff --git a/arch/microblaze/lib/divsi3.S b/arch/microblaze/lib/divsi3.S
new file mode 100644
index 000000000000..595b02d6e86b
--- /dev/null
+++ b/arch/microblaze/lib/divsi3.S
@@ -0,0 +1,73 @@
+#include <linux/linkage.h>
+
+/*
+* Divide operation for 32 bit integers.
+* Input : Dividend in Reg r5
+* Divisor in Reg r6
+* Output: Result in Reg r3
+*/
+ .text
+ .globl __divsi3
+ .type __divsi3, @function
+ .ent __divsi3
+__divsi3:
+ .frame r1, 0, r15
+
+ addik r1, r1, -16
+ swi r28, r1, 0
+ swi r29, r1, 4
+ swi r30, r1, 8
+ swi r31, r1, 12
+
+ beqi r6, div_by_zero /* div_by_zero - division error */
+ beqi r5, result_is_zero /* result is zero */
+ bgeid r5, r5_pos
+ xor r28, r5, r6 /* get the sign of the result */
+ rsubi r5, r5, 0 /* make r5 positive */
+r5_pos:
+ bgei r6, r6_pos
+ rsubi r6, r6, 0 /* make r6 positive */
+r6_pos:
+ addik r30, r0, 0 /* clear mod */
+ addik r3, r0, 0 /* clear div */
+ addik r29, r0, 32 /* initialize the loop count */
+
+ /* first part try to find the first '1' in the r5 */
+div0:
+ blti r5, div2 /* this traps r5 == 0x80000000 */
+div1:
+ add r5, r5, r5 /* left shift logical r5 */
+ bgtid r5, div1
+ addik r29, r29, -1
+div2:
+ /* left shift logical r5 get the '1' into the carry */
+ add r5, r5, r5
+ addc r30, r30, r30 /* move that bit into the mod register */
+ rsub r31, r6, r30 /* try to subtract (r30 a r6) */
+ blti r31, mod_too_small
+ /* move the r31 to mod since the result was positive */
+ or r30, r0, r31
+ addik r3, r3, 1
+mod_too_small:
+ addik r29, r29, -1
+ beqi r29, loop_end
+ add r3, r3, r3 /* shift in the '1' into div */
+ bri div2 /* div2 */
+loop_end:
+ bgei r28, return_here
+ brid return_here
+ rsubi r3, r3, 0 /* negate the result */
+div_by_zero:
+result_is_zero:
+ or r3, r0, r0 /* set result to 0 */
+return_here:
+/* restore values of csrs and that of r3 and the divisor and the dividend */
+ lwi r28, r1, 0
+ lwi r29, r1, 4
+ lwi r30, r1, 8
+ lwi r31, r1, 12
+ rtsd r15, 8
+ addik r1, r1, 16
+
+.size __divsi3, . - __divsi3
+.end __divsi3
diff --git a/arch/microblaze/lib/libgcc.h b/arch/microblaze/lib/libgcc.h
new file mode 100644
index 000000000000..05909d58e2fe
--- /dev/null
+++ b/arch/microblaze/lib/libgcc.h
@@ -0,0 +1,25 @@
+#ifndef __ASM_LIBGCC_H
+#define __ASM_LIBGCC_H
+
+#include <asm/byteorder.h>
+
+typedef int word_type __attribute__ ((mode (__word__)));
+
+#ifdef __BIG_ENDIAN
+struct DWstruct {
+ int high, low;
+};
+#elif defined(__LITTLE_ENDIAN)
+struct DWstruct {
+ int low, high;
+};
+#else
+#error I feel sick.
+#endif
+
+typedef union {
+ struct DWstruct s;
+ long long ll;
+} DWunion;
+
+#endif /* __ASM_LIBGCC_H */
diff --git a/arch/microblaze/lib/lshrdi3.c b/arch/microblaze/lib/lshrdi3.c
new file mode 100644
index 000000000000..dcf8d6810b7c
--- /dev/null
+++ b/arch/microblaze/lib/lshrdi3.c
@@ -0,0 +1,29 @@
+#include <linux/module.h>
+
+#include "libgcc.h"
+
+long long __lshrdi3(long long u, word_type b)
+{
+ DWunion uu, w;
+ word_type bm;
+
+ if (b == 0)
+ return u;
+
+ uu.ll = u;
+ bm = 32 - b;
+
+ if (bm <= 0) {
+ w.s.high = 0;
+ w.s.low = (unsigned int) uu.s.high >> -bm;
+ } else {
+ const unsigned int carries = (unsigned int) uu.s.high << bm;
+
+ w.s.high = (unsigned int) uu.s.high >> b;
+ w.s.low = ((unsigned int) uu.s.low >> b) | carries;
+ }
+
+ return w.ll;
+}
+
+EXPORT_SYMBOL(__lshrdi3);
diff --git a/arch/microblaze/lib/memcpy.c b/arch/microblaze/lib/memcpy.c
index 014bac92bdff..cc495d7d99cc 100644
--- a/arch/microblaze/lib/memcpy.c
+++ b/arch/microblaze/lib/memcpy.c
@@ -33,17 +33,24 @@
#include <asm/system.h>
#ifdef __HAVE_ARCH_MEMCPY
+#ifndef CONFIG_OPT_LIB_FUNCTION
void *memcpy(void *v_dst, const void *v_src, __kernel_size_t c)
{
const char *src = v_src;
char *dst = v_dst;
-#ifndef CONFIG_OPT_LIB_FUNCTION
+
/* Simple, byte oriented memcpy. */
while (c--)
*dst++ = *src++;
return v_dst;
-#else
+}
+#else /* CONFIG_OPT_LIB_FUNCTION */
+void *memcpy(void *v_dst, const void *v_src, __kernel_size_t c)
+{
+ const char *src = v_src;
+ char *dst = v_dst;
+
/* The following code tries to optimize the copy by using unsigned
* alignment. This will work fine if both source and destination are
* aligned on the same boundary. However, if they are aligned on
@@ -86,7 +93,7 @@ void *memcpy(void *v_dst, const void *v_src, __kernel_size_t c)
case 0x1: /* Unaligned - Off by 1 */
/* Word align the source */
i_src = (const void *) ((unsigned)src & ~3);
-
+#ifndef __MICROBLAZEEL__
/* Load the holding buffer */
buf_hold = *i_src++ << 8;
@@ -95,7 +102,16 @@ void *memcpy(void *v_dst, const void *v_src, __kernel_size_t c)
*i_dst++ = buf_hold | value >> 24;
buf_hold = value << 8;
}
+#else
+ /* Load the holding buffer */
+ buf_hold = (*i_src++ & 0xFFFFFF00) >>8;
+ for (; c >= 4; c -= 4) {
+ value = *i_src++;
+ *i_dst++ = buf_hold | ((value & 0xFF) << 24);
+ buf_hold = (value & 0xFFFFFF00) >>8;
+ }
+#endif
/* Realign the source */
src = (const void *)i_src;
src -= 3;
@@ -103,7 +119,7 @@ void *memcpy(void *v_dst, const void *v_src, __kernel_size_t c)
case 0x2: /* Unaligned - Off by 2 */
/* Word align the source */
i_src = (const void *) ((unsigned)src & ~3);
-
+#ifndef __MICROBLAZEEL__
/* Load the holding buffer */
buf_hold = *i_src++ << 16;
@@ -112,7 +128,16 @@ void *memcpy(void *v_dst, const void *v_src, __kernel_size_t c)
*i_dst++ = buf_hold | value >> 16;
buf_hold = value << 16;
}
+#else
+ /* Load the holding buffer */
+ buf_hold = (*i_src++ & 0xFFFF0000 )>>16;
+ for (; c >= 4; c -= 4) {
+ value = *i_src++;
+ *i_dst++ = buf_hold | ((value & 0xFFFF)<<16);
+ buf_hold = (value & 0xFFFF0000) >>16;
+ }
+#endif
/* Realign the source */
src = (const void *)i_src;
src -= 2;
@@ -120,7 +145,7 @@ void *memcpy(void *v_dst, const void *v_src, __kernel_size_t c)
case 0x3: /* Unaligned - Off by 3 */
/* Word align the source */
i_src = (const void *) ((unsigned)src & ~3);
-
+#ifndef __MICROBLAZEEL__
/* Load the holding buffer */
buf_hold = *i_src++ << 24;
@@ -129,7 +154,16 @@ void *memcpy(void *v_dst, const void *v_src, __kernel_size_t c)
*i_dst++ = buf_hold | value >> 8;
buf_hold = value << 24;
}
+#else
+ /* Load the holding buffer */
+ buf_hold = (*i_src++ & 0xFF000000) >> 24;
+ for (; c >= 4; c -= 4) {
+ value = *i_src++;
+ *i_dst++ = buf_hold | ((value & 0xFFFFFF) << 8);
+ buf_hold = (value & 0xFF000000) >> 24;
+ }
+#endif
/* Realign the source */
src = (const void *)i_src;
src -= 1;
@@ -150,7 +184,7 @@ void *memcpy(void *v_dst, const void *v_src, __kernel_size_t c)
}
return v_dst;
-#endif
}
+#endif /* CONFIG_OPT_LIB_FUNCTION */
EXPORT_SYMBOL(memcpy);
#endif /* __HAVE_ARCH_MEMCPY */
diff --git a/arch/microblaze/lib/memmove.c b/arch/microblaze/lib/memmove.c
index 0929198c5e68..123e3616f2dd 100644
--- a/arch/microblaze/lib/memmove.c
+++ b/arch/microblaze/lib/memmove.c
@@ -31,16 +31,12 @@
#include <linux/string.h>
#ifdef __HAVE_ARCH_MEMMOVE
+#ifndef CONFIG_OPT_LIB_FUNCTION
void *memmove(void *v_dst, const void *v_src, __kernel_size_t c)
{
const char *src = v_src;
char *dst = v_dst;
-#ifdef CONFIG_OPT_LIB_FUNCTION
- const uint32_t *i_src;
- uint32_t *i_dst;
-#endif
-
if (!c)
return v_dst;
@@ -48,7 +44,6 @@ void *memmove(void *v_dst, const void *v_src, __kernel_size_t c)
if (v_dst <= v_src)
return memcpy(v_dst, v_src, c);
-#ifndef CONFIG_OPT_LIB_FUNCTION
/* copy backwards, from end to beginning */
src += c;
dst += c;
@@ -58,7 +53,22 @@ void *memmove(void *v_dst, const void *v_src, __kernel_size_t c)
*--dst = *--src;
return v_dst;
-#else
+}
+#else /* CONFIG_OPT_LIB_FUNCTION */
+void *memmove(void *v_dst, const void *v_src, __kernel_size_t c)
+{
+ const char *src = v_src;
+ char *dst = v_dst;
+ const uint32_t *i_src;
+ uint32_t *i_dst;
+
+ if (!c)
+ return v_dst;
+
+ /* Use memcpy when source is higher than dest */
+ if (v_dst <= v_src)
+ return memcpy(v_dst, v_src, c);
+
/* The following code tries to optimize the copy by using unsigned
* alignment. This will work fine if both source and destination are
* aligned on the same boundary. However, if they are aligned on
@@ -104,7 +114,7 @@ void *memmove(void *v_dst, const void *v_src, __kernel_size_t c)
case 0x1: /* Unaligned - Off by 1 */
/* Word align the source */
i_src = (const void *) (((unsigned)src + 4) & ~3);
-
+#ifndef __MICROBLAZEEL__
/* Load the holding buffer */
buf_hold = *--i_src >> 24;
@@ -113,7 +123,16 @@ void *memmove(void *v_dst, const void *v_src, __kernel_size_t c)
*--i_dst = buf_hold << 8 | value;
buf_hold = value >> 24;
}
+#else
+ /* Load the holding buffer */
+ buf_hold = (*--i_src & 0xFF) << 24;
+ for (; c >= 4; c -= 4) {
+ value = *--i_src;
+ *--i_dst = buf_hold | ((value & 0xFFFFFF00)>>8);
+ buf_hold = (value & 0xFF) << 24;
+ }
+#endif
/* Realign the source */
src = (const void *)i_src;
src += 1;
@@ -121,7 +140,7 @@ void *memmove(void *v_dst, const void *v_src, __kernel_size_t c)
case 0x2: /* Unaligned - Off by 2 */
/* Word align the source */
i_src = (const void *) (((unsigned)src + 4) & ~3);
-
+#ifndef __MICROBLAZEEL__
/* Load the holding buffer */
buf_hold = *--i_src >> 16;
@@ -130,7 +149,16 @@ void *memmove(void *v_dst, const void *v_src, __kernel_size_t c)
*--i_dst = buf_hold << 16 | value;
buf_hold = value >> 16;
}
+#else
+ /* Load the holding buffer */
+ buf_hold = (*--i_src & 0xFFFF) << 16;
+ for (; c >= 4; c -= 4) {
+ value = *--i_src;
+ *--i_dst = buf_hold | ((value & 0xFFFF0000)>>16);
+ buf_hold = (value & 0xFFFF) << 16;
+ }
+#endif
/* Realign the source */
src = (const void *)i_src;
src += 2;
@@ -138,7 +166,7 @@ void *memmove(void *v_dst, const void *v_src, __kernel_size_t c)
case 0x3: /* Unaligned - Off by 3 */
/* Word align the source */
i_src = (const void *) (((unsigned)src + 4) & ~3);
-
+#ifndef __MICROBLAZEEL__
/* Load the holding buffer */
buf_hold = *--i_src >> 8;
@@ -147,7 +175,16 @@ void *memmove(void *v_dst, const void *v_src, __kernel_size_t c)
*--i_dst = buf_hold << 24 | value;
buf_hold = value >> 8;
}
+#else
+ /* Load the holding buffer */
+ buf_hold = (*--i_src & 0xFFFFFF) << 8;
+ for (; c >= 4; c -= 4) {
+ value = *--i_src;
+ *--i_dst = buf_hold | ((value & 0xFF000000)>> 24);
+ buf_hold = (value & 0xFFFFFF) << 8;;
+ }
+#endif
/* Realign the source */
src = (const void *)i_src;
src += 3;
@@ -169,7 +206,7 @@ void *memmove(void *v_dst, const void *v_src, __kernel_size_t c)
*--dst = *--src;
}
return v_dst;
-#endif
}
+#endif /* CONFIG_OPT_LIB_FUNCTION */
EXPORT_SYMBOL(memmove);
#endif /* __HAVE_ARCH_MEMMOVE */
diff --git a/arch/microblaze/lib/memset.c b/arch/microblaze/lib/memset.c
index ecfb663e1fc1..834565d1607e 100644
--- a/arch/microblaze/lib/memset.c
+++ b/arch/microblaze/lib/memset.c
@@ -31,17 +31,30 @@
#include <linux/string.h>
#ifdef __HAVE_ARCH_MEMSET
+#ifndef CONFIG_OPT_LIB_FUNCTION
+void *memset(void *v_src, int c, __kernel_size_t n)
+{
+ char *src = v_src;
+
+ /* Truncate c to 8 bits */
+ c = (c & 0xFF);
+
+ /* Simple, byte oriented memset or the rest of count. */
+ while (n--)
+ *src++ = c;
+
+ return v_src;
+}
+#else /* CONFIG_OPT_LIB_FUNCTION */
void *memset(void *v_src, int c, __kernel_size_t n)
{
char *src = v_src;
-#ifdef CONFIG_OPT_LIB_FUNCTION
uint32_t *i_src;
uint32_t w32 = 0;
-#endif
+
/* Truncate c to 8 bits */
c = (c & 0xFF);
-#ifdef CONFIG_OPT_LIB_FUNCTION
if (unlikely(c)) {
/* Make a repeating word out of it */
w32 = c;
@@ -72,12 +85,13 @@ void *memset(void *v_src, int c, __kernel_size_t n)
src = (void *)i_src;
}
-#endif
+
/* Simple, byte oriented memset or the rest of count. */
while (n--)
*src++ = c;
return v_src;
}
+#endif /* CONFIG_OPT_LIB_FUNCTION */
EXPORT_SYMBOL(memset);
#endif /* __HAVE_ARCH_MEMSET */
diff --git a/arch/microblaze/lib/modsi3.S b/arch/microblaze/lib/modsi3.S
new file mode 100644
index 000000000000..84e0bee6e8c7
--- /dev/null
+++ b/arch/microblaze/lib/modsi3.S
@@ -0,0 +1,73 @@
+#include <linux/linkage.h>
+
+/*
+* modulo operation for 32 bit integers.
+* Input : op1 in Reg r5
+* op2 in Reg r6
+* Output: op1 mod op2 in Reg r3
+*/
+
+ .text
+ .globl __modsi3
+ .type __modsi3, @function
+ .ent __modsi3
+
+__modsi3:
+ .frame r1, 0, r15
+
+ addik r1, r1, -16
+ swi r28, r1, 0
+ swi r29, r1, 4
+ swi r30, r1, 8
+ swi r31, r1, 12
+
+ beqi r6, div_by_zero /* div_by_zero division error */
+ beqi r5, result_is_zero /* result is zero */
+ bgeid r5, r5_pos
+ /* get the sign of the result [ depends only on the first arg] */
+ add r28, r5, r0
+ rsubi r5, r5, 0 /* make r5 positive */
+r5_pos:
+ bgei r6, r6_pos
+ rsubi r6, r6, 0 /* make r6 positive */
+r6_pos:
+ addik r3, r0, 0 /* clear mod */
+ addik r30, r0, 0 /* clear div */
+ addik r29, r0, 32 /* initialize the loop count */
+/* first part try to find the first '1' in the r5 */
+div1:
+ add r5, r5, r5 /* left shift logical r5 */
+ bgeid r5, div1
+ addik r29, r29, -1
+div2:
+ /* left shift logical r5 get the '1' into the carry */
+ add r5, r5, r5
+ addc r3, r3, r3 /* move that bit into the mod register */
+ rsub r31, r6, r3 /* try to subtract (r30 a r6) */
+ blti r31, mod_too_small
+ /* move the r31 to mod since the result was positive */
+ or r3, r0, r31
+ addik r30, r30, 1
+mod_too_small:
+ addik r29, r29, -1
+ beqi r29, loop_end
+ add r30, r30, r30 /* shift in the '1' into div */
+ bri div2 /* div2 */
+loop_end:
+ bgei r28, return_here
+ brid return_here
+ rsubi r3, r3, 0 /* negate the result */
+div_by_zero:
+result_is_zero:
+ or r3, r0, r0 /* set result to 0 [both mod as well as div are 0] */
+return_here:
+/* restore values of csrs and that of r3 and the divisor and the dividend */
+ lwi r28, r1, 0
+ lwi r29, r1, 4
+ lwi r30, r1, 8
+ lwi r31, r1, 12
+ rtsd r15, 8
+ addik r1, r1, 16
+
+.size __modsi3, . - __modsi3
+.end __modsi3
diff --git a/arch/microblaze/lib/muldi3.S b/arch/microblaze/lib/muldi3.S
new file mode 100644
index 000000000000..ceeaa8c407f2
--- /dev/null
+++ b/arch/microblaze/lib/muldi3.S
@@ -0,0 +1,121 @@
+#include <linux/linkage.h>
+
+/*
+ * Multiply operation for 64 bit integers, for devices with hard multiply
+ * Input : Operand1[H] in Reg r5
+ * Operand1[L] in Reg r6
+ * Operand2[H] in Reg r7
+ * Operand2[L] in Reg r8
+ * Output: Result[H] in Reg r3
+ * Result[L] in Reg r4
+ *
+ * Explaination:
+ *
+ * Both the input numbers are divided into 16 bit number as follows
+ * op1 = A B C D
+ * op2 = E F G H
+ * result = D * H
+ * + (C * H + D * G) << 16
+ * + (B * H + C * G + D * F) << 32
+ * + (A * H + B * G + C * F + D * E) << 48
+ *
+ * Only 64 bits of the output are considered
+ */
+
+ .text
+ .globl __muldi3
+ .type __muldi3, @function
+ .ent __muldi3
+
+__muldi3:
+ addi r1, r1, -40
+
+/* Save the input operands on the caller's stack */
+ swi r5, r1, 44
+ swi r6, r1, 48
+ swi r7, r1, 52
+ swi r8, r1, 56
+
+/* Store all the callee saved registers */
+ sw r20, r1, r0
+ swi r21, r1, 4
+ swi r22, r1, 8
+ swi r23, r1, 12
+ swi r24, r1, 16
+ swi r25, r1, 20
+ swi r26, r1, 24
+ swi r27, r1, 28
+
+/* Load all the 16 bit values for A thru H */
+ lhui r20, r1, 44 /* A */
+ lhui r21, r1, 46 /* B */
+ lhui r22, r1, 48 /* C */
+ lhui r23, r1, 50 /* D */
+ lhui r24, r1, 52 /* E */
+ lhui r25, r1, 54 /* F */
+ lhui r26, r1, 56 /* G */
+ lhui r27, r1, 58 /* H */
+
+/* D * H ==> LSB of the result on stack ==> Store1 */
+ mul r9, r23, r27
+ swi r9, r1, 36 /* Pos2 and Pos3 */
+
+/* Hi (Store1) + C * H + D * G ==> Store2 ==> Pos1 and Pos2 */
+/* Store the carry generated in position 2 for Pos 3 */
+ lhui r11, r1, 36 /* Pos2 */
+ mul r9, r22, r27 /* C * H */
+ mul r10, r23, r26 /* D * G */
+ add r9, r9, r10
+ addc r12, r0, r0
+ add r9, r9, r11
+ addc r12, r12, r0 /* Store the Carry */
+ shi r9, r1, 36 /* Store Pos2 */
+ swi r9, r1, 32
+ lhui r11, r1, 32
+ shi r11, r1, 34 /* Store Pos1 */
+
+/* Hi (Store2) + B * H + C * G + D * F ==> Store3 ==> Pos0 and Pos1 */
+ mul r9, r21, r27 /* B * H */
+ mul r10, r22, r26 /* C * G */
+ mul r7, r23, r25 /* D * F */
+ add r9, r9, r11
+ add r9, r9, r10
+ add r9, r9, r7
+ swi r9, r1, 32 /* Pos0 and Pos1 */
+
+/* Hi (Store3) + A * H + B * G + C * F + D * E ==> Store3 ==> Pos0 */
+ lhui r11, r1, 32 /* Pos0 */
+ mul r9, r20, r27 /* A * H */
+ mul r10, r21, r26 /* B * G */
+ mul r7, r22, r25 /* C * F */
+ mul r8, r23, r24 /* D * E */
+ add r9, r9, r11
+ add r9, r9, r10
+ add r9, r9, r7
+ add r9, r9, r8
+ sext16 r9, r9 /* Sign extend the MSB */
+ shi r9, r1, 32
+
+/* Move results to r3 and r4 */
+ lhui r3, r1, 32
+ add r3, r3, r12
+ shi r3, r1, 32
+ lwi r3, r1, 32 /* Hi Part */
+ lwi r4, r1, 36 /* Lo Part */
+
+/* Restore Callee saved registers */
+ lw r20, r1, r0
+ lwi r21, r1, 4
+ lwi r22, r1, 8
+ lwi r23, r1, 12
+ lwi r24, r1, 16
+ lwi r25, r1, 20
+ lwi r26, r1, 24
+ lwi r27, r1, 28
+
+/* Restore Frame and return */
+ rtsd r15, 8
+ addi r1, r1, 40
+
+.size __muldi3, . - __muldi3
+.end __muldi3
diff --git a/arch/microblaze/lib/mulsi3.S b/arch/microblaze/lib/mulsi3.S
new file mode 100644
index 000000000000..90bd7b93afe6
--- /dev/null
+++ b/arch/microblaze/lib/mulsi3.S
@@ -0,0 +1,46 @@
+#include <linux/linkage.h>
+
+/*
+ * Multiply operation for 32 bit integers.
+ * Input : Operand1 in Reg r5
+ * Operand2 in Reg r6
+ * Output: Result [op1 * op2] in Reg r3
+ */
+ .text
+ .globl __mulsi3
+ .type __mulsi3, @function
+ .ent __mulsi3
+
+__mulsi3:
+ .frame r1, 0, r15
+ add r3, r0, r0
+ beqi r5, result_is_zero /* multiply by zero */
+ beqi r6, result_is_zero /* multiply by zero */
+ bgeid r5, r5_pos
+ xor r4, r5, r6 /* get the sign of the result */
+ rsubi r5, r5, 0 /* make r5 positive */
+r5_pos:
+ bgei r6, r6_pos
+ rsubi r6, r6, 0 /* make r6 positive */
+r6_pos:
+ bri l1
+l2:
+ add r5, r5, r5
+l1:
+ srl r6, r6
+ addc r7, r0, r0
+ beqi r7, l2
+ bneid r6, l2
+ add r3, r3, r5
+ blti r4, negateresult
+ rtsd r15, 8
+ nop
+negateresult:
+ rtsd r15, 8
+ rsub r3, r3, r0
+result_is_zero:
+ rtsd r15, 8
+ addi r3, r0, 0
+
+.size __mulsi3, . - __mulsi3
+.end __mulsi3
diff --git a/arch/microblaze/lib/udivsi3.S b/arch/microblaze/lib/udivsi3.S
new file mode 100644
index 000000000000..64cf57e4bb85
--- /dev/null
+++ b/arch/microblaze/lib/udivsi3.S
@@ -0,0 +1,84 @@
+#include <linux/linkage.h>
+
+/*
+* Unsigned divide operation.
+* Input : Divisor in Reg r5
+* Dividend in Reg r6
+* Output: Result in Reg r3
+*/
+
+ .text
+ .globl __udivsi3
+ .type __udivsi3, @function
+ .ent __udivsi3
+
+__udivsi3:
+
+ .frame r1, 0, r15
+
+ addik r1, r1, -12
+ swi r29, r1, 0
+ swi r30, r1, 4
+ swi r31, r1, 8
+
+ beqi r6, div_by_zero /* div_by_zero /* division error */
+ beqid r5, result_is_zero /* result is zero */
+ addik r30, r0, 0 /* clear mod */
+ addik r29, r0, 32 /* initialize the loop count */
+
+/* check if r6 and r5 are equal - if yes, return 1 */
+ rsub r18, r5, r6
+ beqid r18, return_here
+ addik r3, r0, 1
+
+/* check if (uns)r6 is greater than (uns)r5. in that case, just return 0 */
+ xor r18, r5, r6
+ bgeid r18, 16
+ add r3, r0, r0 /* we would anyways clear r3 */
+ blti r6, return_here /* r6[bit 31 = 1] hence is greater */
+ bri checkr6
+ rsub r18, r6, r5 /* microblazecmp */
+ blti r18, return_here
+
+/* if r6 [bit 31] is set, then return result as 1 */
+checkr6:
+ bgti r6, div0
+ brid return_here
+ addik r3, r0, 1
+
+/* first part try to find the first '1' in the r5 */
+div0:
+ blti r5, div2
+div1:
+ add r5, r5, r5 /* left shift logical r5 */
+ bgtid r5, div1
+ addik r29, r29, -1
+div2:
+/* left shift logical r5 get the '1' into the carry */
+ add r5, r5, r5
+ addc r30, r30, r30 /* move that bit into the mod register */
+ rsub r31, r6, r30 /* try to subtract (r30 a r6) */
+ blti r31, mod_too_small
+/* move the r31 to mod since the result was positive */
+ or r30, r0, r31
+ addik r3, r3, 1
+mod_too_small:
+ addik r29, r29, -1
+ beqi r29, loop_end
+ add r3, r3, r3 /* shift in the '1' into div */
+ bri div2 /* div2 */
+loop_end:
+ bri return_here
+div_by_zero:
+result_is_zero:
+ or r3, r0, r0 /* set result to 0 */
+return_here:
+/* restore values of csrs and that of r3 and the divisor and the dividend */
+ lwi r29, r1, 0
+ lwi r30, r1, 4
+ lwi r31, r1, 8
+ rtsd r15, 8
+ addik r1, r1, 12
+
+.size __udivsi3, . - __udivsi3
+.end __udivsi3
diff --git a/arch/microblaze/lib/umodsi3.S b/arch/microblaze/lib/umodsi3.S
new file mode 100644
index 000000000000..17d16bafae58
--- /dev/null
+++ b/arch/microblaze/lib/umodsi3.S
@@ -0,0 +1,86 @@
+#include <linux/linkage.h>
+
+/*
+ * Unsigned modulo operation for 32 bit integers.
+ * Input : op1 in Reg r5
+ * op2 in Reg r6
+ * Output: op1 mod op2 in Reg r3
+ */
+
+ .text
+ .globl __umodsi3
+ .type __umodsi3, @function
+ .ent __umodsi3
+
+__umodsi3:
+ .frame r1, 0, r15
+
+ addik r1, r1, -12
+ swi r29, r1, 0
+ swi r30, r1, 4
+ swi r31, r1, 8
+
+ beqi r6, div_by_zero /* div_by_zero - division error */
+ beqid r5, result_is_zero /* result is zero */
+ addik r3, r0, 0 /* clear div */
+ addik r30, r0, 0 /* clear mod */
+ addik r29, r0, 32 /* initialize the loop count */
+
+/* check if r6 and r5 are equal /* if yes, return 0 */
+ rsub r18, r5, r6
+ beqi r18, return_here
+
+/* check if (uns)r6 is greater than (uns)r5. in that case, just return r5 */
+ xor r18, r5, r6
+ bgeid r18, 16
+ addik r3, r5, 0
+ blti r6, return_here
+ bri $lcheckr6
+ rsub r18, r5, r6 /* microblazecmp */
+ bgti r18, return_here
+
+/* if r6 [bit 31] is set, then return result as r5-r6 */
+$lcheckr6:
+ bgtid r6, div0
+ addik r3, r0, 0
+ addik r18, r0, 0x7fffffff
+ and r5, r5, r18
+ and r6, r6, r18
+ brid return_here
+ rsub r3, r6, r5
+/* first part: try to find the first '1' in the r5 */
+div0:
+ blti r5, div2
+div1:
+ add r5, r5, r5 /* left shift logical r5 */
+ bgeid r5, div1
+ addik r29, r29, -1
+div2:
+ /* left shift logical r5 get the '1' into the carry */
+ add r5, r5, r5
+ addc r3, r3, r3 /* move that bit into the mod register */
+ rsub r31, r6, r3 /* try to subtract (r3 a r6) */
+ blti r31, mod_too_small
+ /* move the r31 to mod since the result was positive */
+ or r3, r0, r31
+ addik r30, r30, 1
+mod_too_small:
+ addik r29, r29, -1
+ beqi r29, loop_end
+ add r30, r30, r30 /* shift in the '1' into div */
+ bri div2 /* div2 */
+loop_end:
+ bri return_here
+div_by_zero:
+result_is_zero:
+ or r3, r0, r0 /* set result to 0 */
+return_here:
+/* restore values of csrs and that of r3 and the divisor and the dividend */
+ lwi r29, r1, 0
+ lwi r30, r1, 4
+ lwi r31, r1, 8
+ rtsd r15, 8
+ addik r1, r1, 12
+
+.size __umodsi3, . - __umodsi3
+.end __umodsi3
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index 55ef532f32be..e363615d6798 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -60,21 +60,6 @@ struct dma_map_ops *get_pci_dma_ops(void)
}
EXPORT_SYMBOL(get_pci_dma_ops);
-int pci_set_dma_mask(struct pci_dev *dev, u64 mask)
-{
- return dma_set_mask(&dev->dev, mask);
-}
-
-int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask)
-{
- int rc;
-
- rc = dma_set_mask(&dev->dev, mask);
- dev->dev.coherent_dma_mask = dev->dma_mask;
-
- return rc;
-}
-
struct pci_controller *pcibios_alloc_controller(struct device_node *dev)
{
struct pci_controller *phb;
@@ -1075,8 +1060,6 @@ void __devinit pcibios_setup_bus_devices(struct pci_bus *bus)
bus->number, bus->self ? pci_name(bus->self) : "PHB");
list_for_each_entry(dev, &bus->devices, bus_list) {
- struct dev_archdata *sd = &dev->dev.archdata;
-
/* Setup OF node pointer in archdata */
dev->dev.of_node = pci_device_to_OF_node(dev);
@@ -1086,8 +1069,8 @@ void __devinit pcibios_setup_bus_devices(struct pci_bus *bus)
set_dev_node(&dev->dev, pcibus_to_node(dev->bus));
/* Hook up default DMA ops */
- sd->dma_ops = pci_dma_ops;
- sd->dma_data = (void *)PCI_DRAM_OFFSET;
+ set_dma_ops(&dev->dev, pci_dma_ops);
+ dev->dev.archdata.dma_data = (void *)PCI_DRAM_OFFSET;
/* Read default IRQs and fixup if necessary */
pci_read_irq_line(dev);
diff --git a/arch/microblaze/platform/generic/system.dts b/arch/microblaze/platform/generic/system.dts
index 2d5c41767cd0..3f85df2b73b3 100644
--- a/arch/microblaze/platform/generic/system.dts
+++ b/arch/microblaze/platform/generic/system.dts
@@ -85,6 +85,7 @@
xlnx,dynamic-bus-sizing = <0x1>;
xlnx,edge-is-positive = <0x1>;
xlnx,family = "virtex5";
+ xlnx,endianness = <0x1>;
xlnx,fpu-exception = <0x1>;
xlnx,fsl-data-size = <0x20>;
xlnx,fsl-exception = <0x0>;
@@ -218,6 +219,7 @@
#address-cells = <1>;
#size-cells = <1>;
compatible = "xlnx,compound";
+ ranges ;
ethernet@81c00000 {
compatible = "xlnx,xps-ll-temac-1.01.b", "xlnx,xps-ll-temac-1.00.a";
device_type = "network";
@@ -332,6 +334,7 @@
#address-cells = <1>;
#size-cells = <1>;
compatible = "xlnx,mpmc-4.02.a";
+ ranges ;
PIM3: sdma@84600180 {
compatible = "xlnx,ll-dma-1.00.a";
interrupt-parent = <&xps_intc_0>;
diff --git a/arch/microblaze/platform/platform.c b/arch/microblaze/platform/platform.c
index 5b89b58c5aed..b9529caa507a 100644
--- a/arch/microblaze/platform/platform.c
+++ b/arch/microblaze/platform/platform.c
@@ -17,9 +17,6 @@
static struct of_device_id xilinx_of_bus_ids[] __initdata = {
{ .compatible = "simple-bus", },
- { .compatible = "xlnx,plb-v46-1.00.a", },
- { .compatible = "xlnx,opb-v20-1.10.c", },
- { .compatible = "xlnx,opb-v20-1.10.b", },
{ .compatible = "xlnx,compound", },
{}
};

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