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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-16 11:49:58 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-16 11:49:58 -0700
commit8d6cea5111f2daea8acf79d7b4b384a14175ecc1 (patch)
treeef56294da7eefbe46654b030fa8be06830a9c4f0 /arch
parent6a454f71d795368c00d9c329b60cc4d58929e7bc (diff)
parent61cdd7a28f8b515140cb5d8aea518678f0fae024 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (27 commits) Blackfin: hook up new rt_tgsigqueueinfo syscall Blackfin: improve CLKIN_HZ config default Blackfin: initial support for ftrace grapher Blackfin: initial support for ftrace Blackfin: enable support for LOCKDEP Blackfin: add preliminary support for STACKTRACE Blackfin: move custom sections into sections.h Blackfin: punt unused/wrong mutex-dec.h Blackfin: add support for irqflags Blackfin: add support for bzip2/lzma compressed kernel images Blackfin: convert Kconfig style to def_bool Blackfin: bf548-ezkit: update smsc911x resources Blackfin: update aedos-ipipe code to upstream 1.10-00 Blackfin: bf537-stamp: update ADP5520 resources Blackfin: bf518f-ezbrd: fix SPI CS for SPI flash Blackfin: define SPI IRQ in board resources Blackfin: do not configure the UART early if on wrong processor Blackfin: fix deadlock in SMP IPI handler Blackfin: fix flag storage for irq funcs Blackfin: push down exception oops checking ...
Diffstat (limited to 'arch')
-rw-r--r--arch/blackfin/Kconfig60
-rw-r--r--arch/blackfin/Makefile7
-rw-r--r--arch/blackfin/boot/.gitignore3
-rw-r--r--arch/blackfin/boot/Makefile31
-rw-r--r--arch/blackfin/include/asm/atomic.h16
-rw-r--r--arch/blackfin/include/asm/bfin-global.h11
-rw-r--r--arch/blackfin/include/asm/bitops.h3
-rw-r--r--arch/blackfin/include/asm/bug.h57
-rw-r--r--arch/blackfin/include/asm/cache.h11
-rw-r--r--arch/blackfin/include/asm/cacheflush.h3
-rw-r--r--arch/blackfin/include/asm/cpu.h1
-rw-r--r--arch/blackfin/include/asm/ftrace.h14
-rw-r--r--arch/blackfin/include/asm/ipipe.h28
-rw-r--r--arch/blackfin/include/asm/irq.h271
-rw-r--r--arch/blackfin/include/asm/irqflags.h63
-rw-r--r--arch/blackfin/include/asm/mutex-dec.h112
-rw-r--r--arch/blackfin/include/asm/sections.h11
-rw-r--r--arch/blackfin/include/asm/system.h4
-rw-r--r--arch/blackfin/include/asm/unistd.h3
-rw-r--r--arch/blackfin/kernel/Makefile5
-rw-r--r--arch/blackfin/kernel/bfin_dma_5xx.c4
-rw-r--r--arch/blackfin/kernel/bfin_ksyms.c5
-rw-r--r--arch/blackfin/kernel/cplb-mpu/cplbmgr.c2
-rw-r--r--arch/blackfin/kernel/cplb-nompu/cplbmgr.c54
-rw-r--r--arch/blackfin/kernel/early_printk.c8
-rw-r--r--arch/blackfin/kernel/ftrace-entry.S140
-rw-r--r--arch/blackfin/kernel/ftrace.c42
-rw-r--r--arch/blackfin/kernel/ipipe.c42
-rw-r--r--arch/blackfin/kernel/setup.c16
-rw-r--r--arch/blackfin/kernel/stacktrace.c53
-rw-r--r--arch/blackfin/kernel/traps.c128
-rw-r--r--arch/blackfin/kernel/vmlinux.lds.S17
-rw-r--r--arch/blackfin/lib/checksum.c2
-rw-r--r--arch/blackfin/mach-bf518/boards/ezbrd.c12
-rw-r--r--arch/blackfin/mach-bf527/boards/cm_bf527.c5
-rw-r--r--arch/blackfin/mach-bf527/boards/ezbrd.c5
-rw-r--r--arch/blackfin/mach-bf527/boards/ezkit.c5
-rw-r--r--arch/blackfin/mach-bf533/boards/H8606.c5
-rw-r--r--arch/blackfin/mach-bf533/boards/blackstamp.c5
-rw-r--r--arch/blackfin/mach-bf533/boards/cm_bf533.c5
-rw-r--r--arch/blackfin/mach-bf533/boards/ezkit.c5
-rw-r--r--arch/blackfin/mach-bf533/boards/stamp.c5
-rw-r--r--arch/blackfin/mach-bf537/boards/cm_bf537.c7
-rw-r--r--arch/blackfin/mach-bf537/boards/minotaur.c5
-rw-r--r--arch/blackfin/mach-bf537/boards/pnav10.c7
-rw-r--r--arch/blackfin/mach-bf537/boards/stamp.c2
-rw-r--r--arch/blackfin/mach-bf537/boards/tcm_bf537.c5
-rw-r--r--arch/blackfin/mach-bf538/boards/ezkit.c10
-rw-r--r--arch/blackfin/mach-bf548/boards/cm_bf548.c10
-rw-r--r--arch/blackfin/mach-bf548/boards/ezkit.c23
-rw-r--r--arch/blackfin/mach-bf561/boards/cm_bf561.c7
-rw-r--r--arch/blackfin/mach-bf561/boards/ezkit.c5
-rw-r--r--arch/blackfin/mach-common/cache-c.c14
-rw-r--r--arch/blackfin/mach-common/entry.S12
-rw-r--r--arch/blackfin/mach-common/smp.c24
55 files changed, 807 insertions, 603 deletions
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index a60cfe75791..8ea0d942cde 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -6,59 +6,65 @@
mainmenu "Blackfin Kernel Configuration"
config MMU
- bool
- default n
+ def_bool n
config FPU
- bool
- default n
+ def_bool n
config RWSEM_GENERIC_SPINLOCK
- bool
- default y
+ def_bool y
config RWSEM_XCHGADD_ALGORITHM
- bool
- default n
+ def_bool n
config BLACKFIN
- bool
- default y
+ def_bool y
+ select HAVE_FUNCTION_GRAPH_TRACER
+ select HAVE_FUNCTION_TRACER
select HAVE_IDE
+ select HAVE_KERNEL_GZIP
+ select HAVE_KERNEL_BZIP2
+ select HAVE_KERNEL_LZMA
select HAVE_OPROFILE
select ARCH_WANT_OPTIONAL_GPIOLIB
+config GENERIC_BUG
+ def_bool y
+ depends on BUG
+
config ZONE_DMA
- bool
- default y
+ def_bool y
config GENERIC_FIND_NEXT_BIT
- bool
- default y
+ def_bool y
config GENERIC_HWEIGHT
- bool
- default y
+ def_bool y
config GENERIC_HARDIRQS
- bool
- default y
+ def_bool y
config GENERIC_IRQ_PROBE
- bool
- default y
+ def_bool y
config GENERIC_GPIO
- bool
- default y
+ def_bool y
config FORCE_MAX_ZONEORDER
int
default "14"
config GENERIC_CALIBRATE_DELAY
- bool
- default y
+ def_bool y
+
+config LOCKDEP_SUPPORT
+ def_bool y
+
+config STACKTRACE_SUPPORT
+ def_bool y
+
+config TRACE_IRQFLAGS_SUPPORT
+ def_bool y
source "init/Kconfig"
@@ -408,12 +414,12 @@ comment "Clock/PLL Setup"
config CLKIN_HZ
int "Frequency of the crystal on the board in Hz"
+ default "10000000" if BFIN532_IP0X
default "11059200" if BFIN533_STAMP
+ default "24576000" if PNAV10
+ default "25000000" # most people use this
default "27000000" if BFIN533_EZKIT
- default "25000000" if (BFIN537_STAMP || BFIN527_EZKIT || H8606_HVSISTEMAS || BLACKSTAMP || BFIN526_EZBRD || BFIN538_EZKIT || BFIN518F-EZBRD)
default "30000000" if BFIN561_EZKIT
- default "24576000" if PNAV10
- default "10000000" if BFIN532_IP0X
help
The frequency of CLKIN crystal oscillator on the board in Hz.
Warning: This value should match the crystal on the board. Otherwise,
diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile
index d54c8283825..6f9533c3d75 100644
--- a/arch/blackfin/Makefile
+++ b/arch/blackfin/Makefile
@@ -137,7 +137,7 @@ archclean:
INSTALL_PATH ?= /tftpboot
boot := arch/$(ARCH)/boot
-BOOT_TARGETS = vmImage
+BOOT_TARGETS = vmImage vmImage.bz2 vmImage.gz vmImage.lzma
PHONY += $(BOOT_TARGETS) install
KBUILD_IMAGE := $(boot)/vmImage
@@ -150,7 +150,10 @@ install:
$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
define archhelp
- echo '* vmImage - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage)'
+ echo '* vmImage - Alias to selected kernel format (vmImage.gz by default)'
+ echo ' vmImage.bz2 - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.bz2)'
+ echo '* vmImage.gz - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.gz)'
+ echo ' vmImage.lzma - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.lzma)'
echo ' install - Install kernel using'
echo ' (your) ~/bin/$(CROSS_COMPILE)installkernel or'
echo ' (distribution) PATH: $(CROSS_COMPILE)installkernel or'
diff --git a/arch/blackfin/boot/.gitignore b/arch/blackfin/boot/.gitignore
index 3ae03994b88..229e5080867 100644
--- a/arch/blackfin/boot/.gitignore
+++ b/arch/blackfin/boot/.gitignore
@@ -1 +1,2 @@
-+vmImage
+vmImage*
+vmlinux*
diff --git a/arch/blackfin/boot/Makefile b/arch/blackfin/boot/Makefile
index e028d13481a..3ab6f23561d 100644
--- a/arch/blackfin/boot/Makefile
+++ b/arch/blackfin/boot/Makefile
@@ -8,24 +8,41 @@
MKIMAGE := $(srctree)/scripts/mkuboot.sh
-targets := vmImage
-extra-y += vmlinux.bin vmlinux.gz
+targets := vmImage vmImage.bz2 vmImage.gz vmImage.lzma
+extra-y += vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma
quiet_cmd_uimage = UIMAGE $@
cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(ARCH) -O linux -T kernel \
- -C gzip -n 'Linux-$(KERNELRELEASE)' -a $(CONFIG_BOOT_LOAD) \
+ -C $(2) -n 'Linux-$(KERNELRELEASE)' -a $(CONFIG_BOOT_LOAD) \
-e $(shell $(NM) vmlinux | awk '$$NF == "__start" {print $$1}') \
-d $< $@
$(obj)/vmlinux.bin: vmlinux FORCE
$(call if_changed,objcopy)
-$(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE
+$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
$(call if_changed,gzip)
-$(obj)/vmImage: $(obj)/vmlinux.gz
- $(call if_changed,uimage)
- @$(kecho) 'Kernel: $@ is ready'
+$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
+ $(call if_changed,bzip2)
+
+$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE
+ $(call if_changed,lzma)
+
+$(obj)/vmImage.bz2: $(obj)/vmlinux.bin.bz2
+ $(call if_changed,uimage,bzip2)
+
+$(obj)/vmImage.gz: $(obj)/vmlinux.bin.gz
+ $(call if_changed,uimage,gzip)
+
+$(obj)/vmImage.lzma: $(obj)/vmlinux.bin.lzma
+ $(call if_changed,uimage,lzma)
+
+suffix-$(CONFIG_KERNEL_GZIP) := gz
+suffix-$(CONFIG_KERNEL_BZIP2) := bz2
+suffix-$(CONFIG_KERNEL_LZMA) := lzma
+$(obj)/vmImage: $(obj)/vmImage.$(suffix-y)
+ @ln -sf $(notdir $<) $@
install:
sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)"
diff --git a/arch/blackfin/include/asm/atomic.h b/arch/blackfin/include/asm/atomic.h
index 7bbf44e4ddf..b1d92f13ef9 100644
--- a/arch/blackfin/include/asm/atomic.h
+++ b/arch/blackfin/include/asm/atomic.h
@@ -90,7 +90,7 @@ static inline int atomic_test_mask(int mask, atomic_t *v)
static inline void atomic_add(int i, atomic_t *v)
{
- long flags;
+ unsigned long flags;
local_irq_save_hw(flags);
v->counter += i;
@@ -99,7 +99,7 @@ static inline void atomic_add(int i, atomic_t *v)
static inline void atomic_sub(int i, atomic_t *v)
{
- long flags;
+ unsigned long flags;
local_irq_save_hw(flags);
v->counter -= i;
@@ -110,7 +110,7 @@ static inline void atomic_sub(int i, atomic_t *v)
static inline int atomic_add_return(int i, atomic_t *v)
{
int __temp = 0;
- long flags;
+ unsigned long flags;
local_irq_save_hw(flags);
v->counter += i;
@@ -124,7 +124,7 @@ static inline int atomic_add_return(int i, atomic_t *v)
static inline int atomic_sub_return(int i, atomic_t *v)
{
int __temp = 0;
- long flags;
+ unsigned long flags;
local_irq_save_hw(flags);
v->counter -= i;
@@ -136,7 +136,7 @@ static inline int atomic_sub_return(int i, atomic_t *v)
static inline void atomic_inc(volatile atomic_t *v)
{
- long flags;
+ unsigned long flags;
local_irq_save_hw(flags);
v->counter++;
@@ -145,7 +145,7 @@ static inline void atomic_inc(volatile atomic_t *v)
static inline void atomic_dec(volatile atomic_t *v)
{
- long flags;
+ unsigned long flags;
local_irq_save_hw(flags);
v->counter--;
@@ -154,7 +154,7 @@ static inline void atomic_dec(volatile atomic_t *v)
static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
{
- long flags;
+ unsigned long flags;
local_irq_save_hw(flags);
v->counter &= ~mask;
@@ -163,7 +163,7 @@ static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
{
- long flags;
+ unsigned long flags;
local_irq_save_hw(flags);
v->counter |= mask;
diff --git a/arch/blackfin/include/asm/bfin-global.h b/arch/blackfin/include/asm/bfin-global.h
index daffc0684e7..e39277ea43e 100644
--- a/arch/blackfin/include/asm/bfin-global.h
+++ b/arch/blackfin/include/asm/bfin-global.h
@@ -31,7 +31,7 @@
#ifndef __ASSEMBLY__
-#include <asm-generic/sections.h>
+#include <asm/sections.h>
#include <asm/ptrace.h>
#include <asm/user.h>
#include <linux/linkage.h>
@@ -99,15 +99,6 @@ extern const char bfin_board_name[];
extern unsigned long bfin_sic_iwr[];
extern unsigned vr_wakeup;
extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */
-extern unsigned long _ramstart, _ramend, _rambase;
-extern unsigned long memory_start, memory_end, physical_mem_end;
-extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[],
- _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _sbss_b_l1[], _ebss_b_l1[],
- _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[],
- _ebss_l2[], _l2_lma_start[];
-
-/* only used when MTD_UCLINUX */
-extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size;
#ifdef CONFIG_BFIN_ICACHE_LOCK
extern void cache_grab_lock(int way);
diff --git a/arch/blackfin/include/asm/bitops.h b/arch/blackfin/include/asm/bitops.h
index 21b036eadab..75fee2f7d9f 100644
--- a/arch/blackfin/include/asm/bitops.h
+++ b/arch/blackfin/include/asm/bitops.h
@@ -109,7 +109,8 @@ static inline void clear_bit(int nr, volatile unsigned long *addr)
static inline void change_bit(int nr, volatile unsigned long *addr)
{
- int mask, flags;
+ int mask;
+ unsigned long flags;
unsigned long *ADDR = (unsigned long *)addr;
ADDR += nr >> 5;
diff --git a/arch/blackfin/include/asm/bug.h b/arch/blackfin/include/asm/bug.h
index 6d3e11b1fc5..655e49540e4 100644
--- a/arch/blackfin/include/asm/bug.h
+++ b/arch/blackfin/include/asm/bug.h
@@ -2,13 +2,58 @@
#define _BLACKFIN_BUG_H
#ifdef CONFIG_BUG
-#define HAVE_ARCH_BUG
-#define BUG() do { \
- dump_bfin_trace_buffer(); \
- printk(KERN_EMERG "BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
- panic("BUG!"); \
-} while (0)
+#define BFIN_BUG_OPCODE 0xefcd
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+
+#define _BUG_OR_WARN(flags) \
+ asm volatile( \
+ "1: .hword %0\n" \
+ " .section __bug_table,\"a\",@progbits\n" \
+ "2: .long 1b\n" \
+ " .long %1\n" \
+ " .short %2\n" \
+ " .short %3\n" \
+ " .org 2b + %4\n" \
+ " .previous" \
+ : \
+ : "i"(BFIN_BUG_OPCODE), "i"(__FILE__), \
+ "i"(__LINE__), "i"(flags), \
+ "i"(sizeof(struct bug_entry)))
+
+#else
+
+#define _BUG_OR_WARN(flags) \
+ asm volatile( \
+ "1: .hword %0\n" \
+ " .section __bug_table,\"a\",@progbits\n" \
+ "2: .long 1b\n" \
+ " .short %1\n" \
+ " .org 2b + %2\n" \
+ " .previous" \
+ : \
+ : "i"(BFIN_BUG_OPCODE), "i"(flags), \
+ "i"(sizeof(struct bug_entry)))
+
+#endif /* CONFIG_DEBUG_BUGVERBOSE */
+
+#define BUG() \
+ do { \
+ _BUG_OR_WARN(0); \
+ for (;;); \
+ } while (0)
+
+#define WARN_ON(condition) \
+ ({ \
+ int __ret_warn_on = !!(condition); \
+ if (unlikely(__ret_warn_on)) \
+ _BUG_OR_WARN(BUGFLAG_WARNING); \
+ unlikely(__ret_warn_on); \
+ })
+
+#define HAVE_ARCH_BUG
+#define HAVE_ARCH_WARN_ON
#endif
diff --git a/arch/blackfin/include/asm/cache.h b/arch/blackfin/include/asm/cache.h
index 86637814cf2..2ef669ed922 100644
--- a/arch/blackfin/include/asm/cache.h
+++ b/arch/blackfin/include/asm/cache.h
@@ -34,9 +34,13 @@
#define L1_CACHE_SHIFT_MAX 5
#if defined(CONFIG_SMP) && \
- !defined(CONFIG_BFIN_CACHE_COHERENT) && \
- defined(CONFIG_BFIN_DCACHE)
-#define __ARCH_SYNC_CORE_DCACHE
+ !defined(CONFIG_BFIN_CACHE_COHERENT)
+# if defined(CONFIG_BFIN_ICACHE)
+# define __ARCH_SYNC_CORE_ICACHE
+# endif
+# if defined(CONFIG_BFIN_DCACHE)
+# define __ARCH_SYNC_CORE_DCACHE
+# endif
#ifndef __ASSEMBLY__
asmlinkage void __raw_smp_mark_barrier_asm(void);
asmlinkage void __raw_smp_check_barrier_asm(void);
@@ -51,6 +55,7 @@ static inline void smp_check_barrier(void)
}
void resync_core_dcache(void);
+void resync_core_icache(void);
#endif
#endif
diff --git a/arch/blackfin/include/asm/cacheflush.h b/arch/blackfin/include/asm/cacheflush.h
index 94697f0f6f4..5c17dee53b5 100644
--- a/arch/blackfin/include/asm/cacheflush.h
+++ b/arch/blackfin/include/asm/cacheflush.h
@@ -37,6 +37,7 @@ extern void blackfin_dcache_flush_range(unsigned long start_address, unsigned lo
extern void blackfin_dcache_invalidate_range(unsigned long start_address, unsigned long end_address);
extern void blackfin_dflush_page(void *page);
extern void blackfin_invalidate_entire_dcache(void);
+extern void blackfin_invalidate_entire_icache(void);
#define flush_dcache_mmap_lock(mapping) do { } while (0)
#define flush_dcache_mmap_unlock(mapping) do { } while (0)
@@ -97,7 +98,7 @@ do { memcpy(dst, src, len); \
extern unsigned long reserved_mem_dcache_on;
extern unsigned long reserved_mem_icache_on;
-static inline int bfin_addr_dcachable(unsigned long addr)
+static inline int bfin_addr_dcacheable(unsigned long addr)
{
#ifdef CONFIG_BFIN_DCACHE
if (addr < (_ramend - DMA_UNCACHED_REGION))
diff --git a/arch/blackfin/include/asm/cpu.h b/arch/blackfin/include/asm/cpu.h
index c2594ef877f..565b8136855 100644
--- a/arch/blackfin/include/asm/cpu.h
+++ b/arch/blackfin/include/asm/cpu.h
@@ -34,6 +34,7 @@ struct blackfin_cpudata {
unsigned int dmemctl;
unsigned long loops_per_jiffy;
unsigned long dcache_invld_count;
+ unsigned long icache_invld_count;
};
DECLARE_PER_CPU(struct blackfin_cpudata, cpu_data);
diff --git a/arch/blackfin/include/asm/ftrace.h b/arch/blackfin/include/asm/ftrace.h
index 40a8c178f10..8643680f0f7 100644
--- a/arch/blackfin/include/asm/ftrace.h
+++ b/arch/blackfin/include/asm/ftrace.h
@@ -1 +1,13 @@
-/* empty */
+/*
+ * Blackfin ftrace code
+ *
+ * Copyright 2009 Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __ASM_BFIN_FTRACE_H__
+#define __ASM_BFIN_FTRACE_H__
+
+#define MCOUNT_INSN_SIZE 8 /* sizeof mcount call: LINK + CALL */
+
+#endif
diff --git a/arch/blackfin/include/asm/ipipe.h b/arch/blackfin/include/asm/ipipe.h
index 51d0bf5e289..bbe1c3726b6 100644
--- a/arch/blackfin/include/asm/ipipe.h
+++ b/arch/blackfin/include/asm/ipipe.h
@@ -35,10 +35,10 @@
#include <asm/atomic.h>
#include <asm/traps.h>
-#define IPIPE_ARCH_STRING "1.9-01"
+#define IPIPE_ARCH_STRING "1.10-00"
#define IPIPE_MAJOR_NUMBER 1
-#define IPIPE_MINOR_NUMBER 9
-#define IPIPE_PATCH_NUMBER 1
+#define IPIPE_MINOR_NUMBER 10
+#define IPIPE_PATCH_NUMBER 0
#ifdef CONFIG_SMP
#error "I-pipe/blackfin: SMP not implemented"
@@ -54,10 +54,11 @@ do { \
#define task_hijacked(p) \
({ \
- int __x__ = ipipe_current_domain != ipipe_root_domain; \
- /* We would need to clear the SYNC flag for the root domain */ \
- /* over the current processor in SMP mode. */ \
- local_irq_enable_hw(); __x__; \
+ int __x__ = __ipipe_root_domain_p; \
+ __clear_bit(IPIPE_SYNC_FLAG, &ipipe_root_cpudom_var(status)); \
+ if (__x__) \
+ local_irq_enable_hw(); \
+ !__x__; \
})
struct ipipe_domain;
@@ -179,23 +180,24 @@ static inline unsigned long __ipipe_ffnz(unsigned long ul)
#define __ipipe_run_isr(ipd, irq) \
do { \
- if (ipd == ipipe_root_domain) { \
+ if (!__ipipe_pipeline_head_p(ipd)) \
local_irq_enable_hw(); \
- if (ipipe_virtual_irq_p(irq)) \
+ if (ipd == ipipe_root_domain) { \
+ if (unlikely(ipipe_virtual_irq_p(irq))) { \
+ irq_enter(); \
ipd->irqs[irq].handler(irq, ipd->irqs[irq].cookie); \
- else \
+ irq_exit(); \
+ } else \
ipd->irqs[irq].handler(irq, &__raw_get_cpu_var(__ipipe_tick_regs)); \
- local_irq_disable_hw(); \
} else { \
__clear_bit(IPIPE_SYNC_FLAG, &ipipe_cpudom_var(ipd, status)); \
- local_irq_enable_nohead(ipd); \
ipd->irqs[irq].handler(irq, ipd->irqs[irq].cookie); \
/* Attempt to exit the outer interrupt level before \
* starting the deferred IRQ processing. */ \
- local_irq_disable_nohead(ipd); \
__ipipe_run_irqtail(); \
__set_bit(IPIPE_SYNC_FLAG, &ipipe_cpudom_var(ipd, status)); \
} \
+ local_irq_disable_hw(); \
} while (0)
#define __ipipe_syscall_watched_p(p, sc) \
diff --git a/arch/blackfin/include/asm/irq.h b/arch/blackfin/include/asm/irq.h
index 7645e85a5f6..400bdd52ce8 100644
--- a/arch/blackfin/include/asm/irq.h
+++ b/arch/blackfin/include/asm/irq.h
@@ -17,270 +17,17 @@
#ifndef _BFIN_IRQ_H_
#define _BFIN_IRQ_H_
-/* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h>*/
-#include <mach/irq.h>
-#include <asm/pda.h>
-#include <asm/processor.h>
-
-#ifdef CONFIG_SMP
-/* Forward decl needed due to cdef inter dependencies */
-static inline uint32_t __pure bfin_dspid(void);
-# define blackfin_core_id() (bfin_dspid() & 0xff)
-# define bfin_irq_flags cpu_pda[blackfin_core_id()].imask
-#else
-extern unsigned long bfin_irq_flags;
-#endif
-
-#ifdef CONFIG_IPIPE
-
-#include <linux/ipipe_trace.h>
+#include <linux/irqflags.h>
-void __ipipe_unstall_root(void);
-
-void __ipipe_restore_root(unsigned long flags);
-
-#ifdef CONFIG_DEBUG_HWERR
-# define __all_masked_irq_flags 0x3f
-# define __save_and_cli_hw(x) \
- __asm__ __volatile__( \
- "cli %0;" \
- "sti %1;" \
- : "=&d"(x) \
- : "d" (0x3F) \
- )
-#else
-# define __all_masked_irq_flags 0x1f
-# define __save_and_cli_hw(x) \
- __asm__ __volatile__( \
- "cli %0;" \
- : "=&d"(x) \
- )
-#endif
-
-#define irqs_enabled_from_flags_hw(x) ((x) != __all_masked_irq_flags)
-#define raw_irqs_disabled_flags(flags) (!irqs_enabled_from_flags_hw(flags))
-#define local_test_iflag_hw(x) irqs_enabled_from_flags_hw(x)
-
-#define local_save_flags(x) \
- do { \
- (x) = __ipipe_test_root() ? \
- __all_masked_irq_flags : bfin_irq_flags; \
- barrier(); \
- } while (0)
-
-#define local_irq_save(x) \
- do { \
- (x) = __ipipe_test_and_stall_root() ? \
- __all_masked_irq_flags : bfin_irq_flags; \
- barrier(); \
- } while (0)
-
-static inline void local_irq_restore(unsigned long x)
-{
- barrier();
- __ipipe_restore_root(x == __all_masked_irq_flags);
-}
-
-#define local_irq_disable() \
- do { \
- __ipipe_stall_root(); \
- barrier(); \
- } while (0)
-
-static inline void local_irq_enable(void)
-{
- barrier();
- __ipipe_unstall_root();
-}
-
-#define irqs_disabled() __ipipe_test_root()
-
-#define local_save_flags_hw(x) \
- __asm__ __volatile__( \
- "cli %0;" \
- "sti %0;" \
- : "=d"(x) \
- )
-
-#define irqs_disabled_hw() \
- ({ \
- unsigned long flags; \
- local_save_flags_hw(flags); \
- !irqs_enabled_from_flags_hw(flags); \
- })
-
-static inline unsigned long raw_mangle_irq_bits(int virt, unsigned long real)
-{
- /* Merge virtual and real interrupt mask bits into a single
- 32bit word. */
- return (real & ~(1 << 31)) | ((virt != 0) << 31);
-}
-
-static inline int raw_demangle_irq_bits(unsigned long *x)
-{
- int virt = (*x & (1 << 31)) != 0;
- *x &= ~(1L << 31);
- return virt;
-}
-
-#ifdef CONFIG_IPIPE_TRACE_IRQSOFF
-
-#define local_irq_disable_hw() \
- do { \
- int _tmp_dummy; \
- if (!irqs_disabled_hw()) \
- ipipe_trace_begin(0x80000000); \
- __asm__ __volatile__ ("cli %0;" : "=d" (_tmp_dummy) : ); \
- } while (0)
-
-#define local_irq_enable_hw() \
- do { \
- if (irqs_disabled_hw()) \
- ipipe_trace_end(0x80000000); \
- __asm__ __volatile__ ("sti %0;" : : "d"(bfin_irq_flags)); \
- } while (0)
-
-#define local_irq_save_hw(x) \
- do { \
- __save_and_cli_hw(x); \
- if (local_test_iflag_hw(x)) \
- ipipe_trace_begin(0x80000001); \
- } while (0)
-
-#define local_irq_restore_hw(x) \
- do { \
- if (local_test_iflag_hw(x)) { \
- ipipe_trace_end(0x80000001); \
- local_irq_enable_hw_notrace(); \
- } \
- } while (0)
-
-#define local_irq_disable_hw_notrace() \
- do { \
- int _tmp_dummy; \
- __asm__ __volatile__ ("cli %0;" : "=d" (_tmp_dummy) : ); \
- } while (0)
-
-#define local_irq_enable_hw_notrace() \
- __asm__ __volatile__( \
- "sti %0;" \
- : \
- : "d"(bfin_irq_flags) \
- )
-
-#define local_irq_save_hw_notrace(x) __save_and_cli_hw(x)
-
-#define local_irq_restore_hw_notrace(x) \
- do { \
- if (local_test_iflag_hw(x)) \
- local_irq_enable_hw_notrace(); \
- } while (0)
-
-#else /* CONFIG_IPIPE_TRACE_IRQSOFF */
-
-#define local_irq_enable_hw() \
- __asm__ __volatile__( \
- "sti %0;" \
- : \
- : "d"(bfin_irq_flags) \
- )
-
-#define local_irq_disable_hw() \
- do { \
- int _tmp_dummy; \
- __asm__ __volatile__ ( \
- "cli %0;" \
- : "=d" (_tmp_dummy)); \
- } while (0)
-
-#define local_irq_restore_hw(x) \
- do { \
- if (irqs_enabled_from_flags_hw(x)) \
- local_irq_enable_hw(); \
- } while (0)
-
-#define local_irq_save_hw(x) __save_and_cli_hw(x)
-
-#define local_irq_disable_hw_notrace() local_irq_disable_hw()
-#define local_irq_enable_hw_notrace() local_irq_enable_hw()
-#define local_irq_save_hw_notrace(x) local_irq_save_hw(x)
-#define local_irq_restore_hw_notrace(x) local_irq_restore_hw(x)
-
-#endif /* CONFIG_IPIPE_TRACE_IRQSOFF */
-
-#else /* !CONFIG_IPIPE */
-
-/*
- * Interrupt configuring macros.
- */
-#define local_irq_disable() \
- do { \
- int __tmp_dummy; \
- __asm__ __volatile__( \
- "cli %0;" \
- : "=d" (__tmp_dummy) \
- ); \
- } while (0)
-
-#define local_irq_enable() \
- __asm__ __volatile__( \
- "sti %0;" \
- : \
- : "d" (bfin_irq_flags) \
- )
-
-#ifdef CONFIG_DEBUG_HWERR
-# define __save_and_cli(x) \
- __asm__ __volatile__( \
- "cli %0;" \
- "sti %1;" \
- : "=&d" (x) \
- : "d" (0x3F) \
- )
-#else
-# define __save_and_cli(x) \
- __asm__ __volatile__( \
- "cli %0;" \
- : "=&d" (x) \
- )
-#endif
-
-#define local_save_flags(x) \
- __asm__ __volatile__( \
- "cli %0;" \
- "sti %0;" \
- : "=d" (x) \
- )
-
-#ifdef CONFIG_DEBUG_HWERR
-#define irqs_enabled_from_flags(x) (((x) & ~0x3f) != 0)
-#else
-#define irqs_enabled_from_flags(x) ((x) != 0x1f)
-#endif
-
-#define local_irq_restore(x) \
- do { \
- if (irqs_enabled_from_flags(x)) \
- local_irq_enable(); \
- } while (0)
-
-/* For spinlocks etc */
-#define local_irq_save(x) __save_and_cli(x)
-
-#define irqs_disabled() \
-({ \
- unsigned long flags; \
- local_save_flags(flags); \
- !irqs_enabled_from_flags(flags); \
-})
-
-#define local_irq_save_hw(x) local_irq_save(x)
-#define local_irq_restore_hw(x) local_irq_restore(x)
-#define local_irq_enable_hw() local_irq_enable()
-#define local_irq_disable_hw() local_irq_disable()
-#define irqs_disabled_hw() irqs_disabled()
+/* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h> */
+#include <mach/irq.h>
-#endif /* !CONFIG_IPIPE */
+/* Xenomai IPIPE helpers */
+#define local_irq_restore_hw(x) local_irq_restore(x)
+#define local_irq_save_hw(x) local_irq_save(x)
+#define local_irq_enable_hw(x) local_irq_enable(x)
+#define local_irq_disable_hw(x) local_irq_disable(x)
+#define irqs_disabled_hw(x) irqs_disabled(x)
#if ANOMALY_05000244 && defined(CONFIG_BFIN_ICACHE)
# define NOP_PAD_ANOMALY_05000244 "nop; nop;"
diff --git a/arch/blackfin/include/asm/irqflags.h b/arch/blackfin/include/asm/irqflags.h
new file mode 100644
index 00000000000..139cba4651b
--- /dev/null
+++ b/arch/blackfin/include/asm/irqflags.h
@@ -0,0 +1,63 @@
+/*
+ * interface to Blackfin CEC
+ *
+ * Copyright 2009 Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __ASM_BFIN_IRQFLAGS_H__
+#define __ASM_BFIN_IRQFLAGS_H__
+
+#ifdef CONFIG_SMP
+# include <asm/pda.h>
+# include <asm/processor.h>
+/* Forward decl needed due to cdef inter dependencies */
+static inline uint32_t __pure bfin_dspid(void);
+# define blackfin_core_id() (bfin_dspid() & 0xff)
+# define bfin_irq_flags cpu_pda[blackfin_core_id()].imask
+#else
+extern unsigned long bfin_irq_flags;
+#endif
+
+static inline void bfin_sti(unsigned long flags)
+{
+ asm volatile("sti %0;" : : "d" (flags));
+}
+
+static inline unsigned long bfin_cli(void)
+{
+ unsigned long flags;
+ asm volatile("cli %0;" : "=d" (flags));
+ return flags;
+}
+
+static inline void raw_local_irq_disable(void)
+{
+ bfin_cli();
+}
+static inline void raw_local_irq_enable(void)
+{
+ bfin_sti(bfin_irq_flags);
+}
+
+#define raw_local_save_flags(flags) do { (flags) = bfin_read_IMASK(); } while (0)
+
+#define raw_irqs_disabled_flags(flags) (((flags) & ~0x3f) == 0)
+
+static inline void raw_local_irq_restore(unsigned long flags)
+{
+ if (!raw_irqs_disabled_flags(flags))
+ raw_local_irq_enable();
+}
+
+static inline unsigned long __raw_local_irq_save(void)
+{
+ unsigned long flags = bfin_cli();
+#ifdef CONFIG_DEBUG_HWERR
+ bfin_sti(0x3f);
+#endif
+ return flags;
+}
+#define raw_local_irq_save(flags) do { (flags) = __raw_local_irq_save(); } while (0)
+
+#endif
diff --git a/arch/blackfin/include/asm/mutex-dec.h b/arch/blackfin/include/asm/mutex-dec.h
deleted file mode 100644
index 0134151656a..00000000000
--- a/arch/blackfin/include/asm/mutex-dec.h
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * include/asm-generic/mutex-dec.h
- *
- * Generic implementation of the mutex fastpath, based on atomic
- * decrement/increment.
- */
-#ifndef _ASM_GENERIC_MUTEX_DEC_H
-#define _ASM_GENERIC_MUTEX_DEC_H
-
-/**
- * __mutex_fastpath_lock - try to take the lock by moving the count
- * from 1 to a 0 value
- * @count: pointer of type atomic_t
- * @fail_fn: function to call if the original value was not 1
- *
- * Change the count from 1 to a value lower than 1, and call <fail_fn> if
- * it wasn't 1 originally. This function MUST leave the value lower than
- * 1 even when the "1" assertion wasn't true.
- */
-static inline void
-__mutex_fastpath_lock(atomic_t *count, fastcall void (*fail_fn)(atomic_t *))
-{
- if (unlikely(atomic_dec_return(count) < 0))
- fail_fn(count);
- else
- smp_mb();
-}
-
-/**
- * __mutex_fastpath_lock_retval - try to take the lock by moving the count
- * from 1 to a 0 value
- * @count: pointer of type atomic_t
- * @fail_fn: function to call if the original value was not 1
- *
- * Change the count from 1 to a value lower than 1, and call <fail_fn> if
- * it wasn't 1 originally. This function returns 0 if the fastpath succeeds,
- * or anything the slow path function returns.
- */
-static inline int
-__mutex_fastpath_lock_retval(atomic_t *count, fastcall int (*fail_fn)(atomic_t *))
-{
- if (unlikely(atomic_dec_return(count) < 0))
- return fail_fn(count);
- else {
- smp_mb();
- return 0;
- }
-}
-
-/**
- * __mutex_fastpath_unlock - try to promote the count from 0 to 1
- * @count: pointer of type atomic_t
- * @fail_fn: function to call if the original value was not 0
- *
- * Try to promote the count from 0 to 1. If it wasn't 0, call <fail_fn>.
- * In the failure case, this function is allowed to either set the value to
- * 1, or to set it to a value lower than 1.
- *
- * If the implementation sets it to a value of lower than 1, then the
- * __mutex_slowpath_needs_to_unlock() macro needs to return 1, it needs
- * to return 0 otherwise.
- */
-static inline void
-__mutex_fastpath_unlock(atomic_t *count, fastcall void (*fail_fn)(atomic_t *))
-{
- smp_mb();
- if (unlikely(atomic_inc_return(count) <= 0))
- fail_fn(count);
-}
-
-#define __mutex_slowpath_needs_to_unlock() 1
-
-/**
- * __mutex_fastpath_trylock - try to acquire the mutex, without waiting
- *
- * @count: pointer of type atomic_t
- * @fail_fn: fallback function
- *
- * Change the count from 1 to a value lower than 1, and return 0 (failure)
- * if it wasn't 1 originally, or return 1 (success) otherwise. This function
- * MUST leave the value lower than 1 even when the "1" assertion wasn't true.
- * Additionally, if the value was < 0 originally, this function must not leave
- * it to 0 on failure.
- *
- * If the architecture has no effective trylock variant, it should call the
- * <fail_fn> spinlock-based trylock variant unconditionally.
- */
-static inline int
-__mutex_fastpath_trylock(atomic_t *count, int (*fail_fn)(atomic_t *))
-{
- /*
- * We have two variants here. The cmpxchg based one is the best one
- * because it never induce a false contention state. It is included
- * here because architectures using the inc/dec algorithms over the
- * xchg ones are much more likely to support cmpxchg natively.
- *
- * If not we fall back to the spinlock based variant - that is
- * just as efficient (and simpler) as a 'destructive' probing of
- * the mutex state would be.
- */
-#ifdef __HAVE_ARCH_CMPXCHG
- if (likely(atomic_cmpxchg(count, 1, 0) == 1)) {
- smp_mb();
- return 1;
- }
- return 0;
-#else
- return fail_fn(count);
-#endif
-}
-
-#endif
diff --git a/arch/blackfin/include/asm/sections.h b/arch/blackfin/include/asm/sections.h
index 1443c3353a8..e7fd0ecd73f 100644
--- a/arch/blackfin/include/asm/sections.h
+++ b/arch/blackfin/include/asm/sections.h
@@ -4,4 +4,15 @@
/* nothing to see, move along */
#include <asm-generic/sections.h>
+/* only used when MTD_UCLINUX */
+extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size;
+
+extern unsigned long _ramstart, _ramend, _rambase;
+extern unsigned long memory_start, memory_end, physical_mem_end;
+
+extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[],
+ _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _sbss_b_l1[], _ebss_b_l1[],
+ _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[],
+ _ebss_l2[], _l2_lma_start[];
+
#endif
diff --git a/arch/blackfin/include/asm/system.h b/arch/blackfin/include/asm/system.h
index a4c8254bec5..294dbda2416 100644
--- a/arch/blackfin/include/asm/system.h
+++ b/arch/blackfin/include/asm/system.h
@@ -35,10 +35,10 @@
#define _BLACKFIN_SYSTEM_H
#include <linux/linkage.h>
-#include <linux/compiler.h>
+#include <linux/irqflags.h>
#include <mach/anomaly.h>
+#include <asm/cache.h>
#include <asm/pda.h>
-#include <asm/processor.h>
#include <asm/irq.h>
/*
diff --git a/arch/blackfin/include/asm/unistd.h b/arch/blackfin/include/asm/unistd.h
index cf5066d3efd..da35133c171 100644
--- a/arch/blackfin/include/asm/unistd.h
+++ b/arch/blackfin/include/asm/unistd.h
@@ -380,8 +380,9 @@
#define __NR_inotify_init1 365
#define __NR_preadv 366
#define __NR_pwritev 367
+#define __NR_rt_tgsigqueueinfo 368
-#define __NR_syscall 368
+#define __NR_syscall 369
#define NR_syscalls __NR_syscall
/* Old optional stuff no one actually uses */
diff --git a/arch/blackfin/kernel/Makefile b/arch/blackfin/kernel/Makefile
index fd4d4328a0f..3731088e181 100644
--- a/arch/blackfin/kernel/Makefile
+++ b/arch/blackfin/kernel/Makefile
@@ -15,6 +15,10 @@ else
obj-y += time.o
endif
+obj-$(CONFIG_FUNCTION_TRACER) += ftrace-entry.o
+obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o
+CFLAGS_REMOVE_ftrace.o = -pg
+
obj-$(CONFIG_IPIPE) += ipipe.o
obj-$(CONFIG_IPIPE_TRACE_MCOUNT) += mcount.o
obj-$(CONFIG_BFIN_GPTIMERS) += gptimers.o
@@ -23,6 +27,7 @@ obj-$(CONFIG_MODULES) += module.o
obj-$(CONFIG_KGDB) += kgdb.o
obj-$(CONFIG_KGDB_TESTS) += kgdb_test.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
+obj-$(CONFIG_STACKTRACE) += stacktrace.o
# the kgdb test puts code into L2 and without linker
# relaxation, we need to force long calls to/from it
diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c
index 763ed84ba45..e0bf8cc0690 100644
--- a/arch/blackfin/kernel/bfin_dma_5xx.c
+++ b/arch/blackfin/kernel/bfin_dma_5xx.c
@@ -453,10 +453,10 @@ void *dma_memcpy(void *pdst, const void *psrc, size_t size)
unsigned long src = (unsigned long)psrc;
size_t bulk, rest;
- if (bfin_addr_dcachable(src))
+ if (bfin_addr_dcacheable(src))
blackfin_dcache_flush_range(src, src + size);
- if (bfin_addr_dcachable(dst))
+ if (bfin_addr_dcacheable(dst))
blackfin_dcache_invalidate_range(dst, dst + size);
bulk = size & ~0xffff;
diff --git a/arch/blackfin/kernel/bfin_ksyms.c b/arch/blackfin/kernel/bfin_ksyms.c
index 53e893ff708..aa05e638fb7 100644
--- a/arch/blackfin/kernel/bfin_ksyms.c
+++ b/arch/blackfin/kernel/bfin_ksyms.c
@@ -103,3 +103,8 @@ EXPORT_SYMBOL(__raw_smp_mark_barrier_asm);
EXPORT_SYMBOL(__raw_smp_check_barrier_asm);
#endif
#endif
+
+#ifdef CONFIG_FUNCTION_TRACER
+extern void _mcount(void);
+EXPORT_SYMBOL(_mcount);
+#endif
diff --git a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c
index 87463ce87f5..784923e52a9 100644
--- a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c
+++ b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c
@@ -151,7 +151,7 @@ static noinline int dcplb_miss(unsigned int cpu)
d_data = CPLB_SUPV_WR | CPLB_VALID | CPLB_DIRTY | PAGE_SIZE_4KB;
#ifdef CONFIG_BFIN_DCACHE
- if (bfin_addr_dcachable(addr)) {
+ if (bfin_addr_dcacheable(addr)) {
d_data |= CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND;
#ifdef CONFIG_BFIN_WT
d_data |= CPLB_L1_AOW | CPLB_WT;
diff --git a/arch/blackfin/kernel/cplb-nompu/cplbmgr.c b/arch/blackfin/kernel/cplb-nompu/cplbmgr.c
index 8cbb47c7b66..12b030842fd 100644
--- a/arch/blackfin/kernel/cplb-nompu/cplbmgr.c
+++ b/arch/blackfin/kernel/cplb-nompu/cplbmgr.c
@@ -28,6 +28,7 @@
#include <asm/cplbinit.h>
#include <asm/cplb.h>
#include <asm/mmu_context.h>
+#include <asm/traps.h>
/*
* WARNING
@@ -100,28 +101,6 @@ static inline void write_icplb_data(int cpu, int idx, unsigned long data,
#endif
}
-/*
- * Given the contents of the status register, return the index of the
- * CPLB that caused the fault.
- */
-static inline int faulting_cplb_index(int status)
-{
- int signbits = __builtin_bfin_norm_fr1x32(status & 0xFFFF);
- return 30 - signbits;
-}
-
-/*
- * Given the contents of the status register and the DCPLB_DATA contents,
- * return true if a write access should be permitted.
- */
-static inline int write_permitted(int status, unsigned long data)
-{
- if (status & FAULT_USERSUPV)
- return !!(data & CPLB_SUPV_WR);
- else
- return !!(data & CPLB_USER_WR);
-}
-
/* Counters to implement round-robin replacement. */
static int icplb_rr_index[NR_CPUS] PDT_ATTR;
static int dcplb_rr_index[NR_CPUS] PDT_ATTR;
@@ -245,43 +224,16 @@ MGR_ATTR static int dcplb_miss(int cpu)
return CPLB_RELOADED;
}
-MGR_ATTR static noinline int dcplb_protection_fault(int cpu)
-{
- int status = bfin_read_DCPLB_STATUS();
-
- nr_dcplb_prot[cpu]++;
-
- if (likely(status & FAULT_RW)) {
- int idx = faulting_cplb_index(status);
- unsigned long regaddr = DCPLB_DATA0 + idx * 4;
- unsigned long data = bfin_read32(regaddr);
-
- /* Check if fault is to dirty a clean page */
- if (!(data & CPLB_WT) && !(data & CPLB_DIRTY) &&
- write_permitted(status, data)) {
-
- dcplb_tbl[cpu][idx].data = data;
- bfin_write32(regaddr, data);
- return CPLB_RELOADED;
- }
- }
-
- return CPLB_PROT_VIOL;
-}
-
MGR_ATTR int cplb_hdr(int seqstat, struct pt_regs *regs)
{
int cause = seqstat & 0x3f;
unsigned int cpu = smp_processor_id();
switch (cause) {
- case 0x2C:
+ case VEC_CPLB_I_M:
return icplb_miss(cpu);
- case 0x26:
+ case VEC_CPLB_M:
return dcplb_miss(cpu);
default:
- if (unlikely(cause == 0x23))
- return dcplb_protection_fault(cpu);
-
return CPLB_UNKNOWN_ERR;
}
}
diff --git a/arch/blackfin/kernel/early_printk.c b/arch/blackfin/kernel/early_printk.c
index 3302719173c..2ab56811841 100644
--- a/arch/blackfin/kernel/early_printk.c
+++ b/arch/blackfin/kernel/early_printk.c
@@ -202,11 +202,15 @@ asmlinkage void __init init_early_exception_vectors(void)
asmlinkage void __init early_trap_c(struct pt_regs *fp, void *retaddr)
{
/* This can happen before the uart is initialized, so initialize
- * the UART now
+ * the UART now (but only if we are running on the processor we think
+ * we are compiled for - otherwise we write to MMRs that don't exist,
+ * and cause other problems. Nothing comes out the UART, but it does
+ * end up in the __buf_log.
*/
- if (likely(early_console == NULL))
+ if (likely(early_console == NULL) && CPUID == bfin_cpuid())
setup_early_printk(DEFAULT_EARLY_PORT);
+ printk(KERN_EMERG "Early panic\n");
dump_bfin_mem(fp);
show_regs(fp);
dump_bfin_trace_buffer();
diff --git a/arch/blackfin/kernel/ftrace-entry.S b/arch/blackfin/kernel/ftrace-entry.S
new file mode 100644
index 00000000000..6980b7a0615
--- /dev/null
+++ b/arch/blackfin/kernel/ftrace-entry.S
@@ -0,0 +1,140 @@
+/*
+ * mcount and friends -- ftrace stuff
+ *
+ * Copyright (C) 2009 Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/linkage.h>
+#include <asm/ftrace.h>
+
+.text
+
+/* GCC will have called us before setting up the function prologue, so we
+ * can clobber the normal scratch registers, but we need to make sure to
+ * save/restore the registers used for argument passing (R0-R2) in case
+ * the profiled function is using them. With data registers, R3 is the
+ * only one we can blow away. With pointer registers, we have P0-P2.
+ *
+ * Upon entry, the RETS will point to the top of the current profiled
+ * function. And since GCC setup the frame for us, the previous function
+ * will be waiting there. mmmm pie.
+ */
+ENTRY(__mcount)
+ /* save third function arg early so we can do testing below */
+ [--sp] = r2;
+
+ /* load the function pointer to the tracer */
+ p0.l = _ftrace_trace_function;
+ p0.h = _ftrace_trace_function;
+ r3 = [p0];
+
+ /* optional micro optimization: don't call the stub tracer */
+ r2.l = _ftrace_stub;
+ r2.h = _ftrace_stub;
+ cc = r2 == r3;
+ if ! cc jump .Ldo_trace;
+
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+ /* if the ftrace_graph_return function pointer is not set to
+ * the ftrace_stub entry, call prepare_ftrace_return().
+ */
+ p0.l = _ftrace_graph_return;
+ p0.h = _ftrace_graph_return;
+ r3 = [p0];
+ cc = r2 == r3;
+ if ! cc jump _ftrace_graph_caller;
+
+ /* similarly, if the ftrace_graph_entry function pointer is not
+ * set to the ftrace_graph_entry_stub entry, ...
+ */
+ p0.l = _ftrace_graph_entry;
+ p0.h = _ftrace_graph_entry;
+ r2.l = _ftrace_graph_entry_stub;
+ r2.h = _ftrace_graph_entry_stub;
+ r3 = [p0];
+ cc = r2 == r3;
+ if ! cc jump _ftrace_graph_caller;
+#endif
+
+ r2 = [sp++];
+ rts;
+
+.Ldo_trace:
+
+ /* save first/second function arg and the return register */
+ [--sp] = r0;
+ [--sp] = r1;
+ [--sp] = rets;
+
+ /* setup the tracer function */
+ p0 = r3;
+
+ /* tracer(ulong frompc, ulong selfpc):
+ * frompc: the pc that did the call to ...
+ * selfpc: ... this location
+ * the selfpc itself will need adjusting for the mcount call
+ */
+ r1 = rets;
+ r0 = [fp + 4];
+ r1 += -MCOUNT_INSN_SIZE;
+
+ /* call the tracer */
+ call (p0);
+
+ /* restore state and get out of dodge */
+.Lfinish_trace:
+ rets = [sp++];
+ r1 = [sp++];
+ r0 = [sp++];
+ r2 = [sp++];
+
+.globl _ftrace_stub
+_ftrace_stub:
+ rts;
+ENDPROC(__mcount)
+
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+/* The prepare_ftrace_return() function is similar to the trace function
+ * except it takes a pointer to the location of the frompc. This is so
+ * the prepare_ftrace_return() can hijack it temporarily for probing
+ * purposes.
+ */
+ENTRY(_ftrace_graph_caller)
+ /* save first/second function arg and the return register */
+ [--sp] = r0;
+ [--sp] = r1;
+ [--sp] = rets;
+
+ r0 = fp;
+ r1 = rets;
+ r0 += 4;
+ r1 += -MCOUNT_INSN_SIZE;
+ call _prepare_ftrace_return;
+
+ jump .Lfinish_trace;
+ENDPROC(_ftrace_graph_caller)
+
+/* Undo the rewrite caused by ftrace_graph_caller(). The common function
+ * ftrace_return_to_handler() will return the original rets so we can
+ * restore it and be on our way.
+ */
+ENTRY(_return_to_handler)
+ /* make sure original return values are saved */
+ [--sp] = p0;
+ [--sp] = r0;
+ [--sp] = r1;
+
+ /* get original return address */
+ call _ftrace_return_to_handler;
+ rets = r0;
+
+ /* anomaly 05000371 - make sure we have at least three instructions
+ * between rets setting and the return
+ */
+ r1 = [sp++];
+ r0 = [sp++];
+ p0 = [sp++];
+ rts;
+ENDPROC(_return_to_handler)
+#endif
diff --git a/arch/blackfin/kernel/ftrace.c b/arch/blackfin/kernel/ftrace.c
new file mode 100644
index 00000000000..905bfc40a00
--- /dev/null
+++ b/arch/blackfin/kernel/ftrace.c
@@ -0,0 +1,42 @@
+/*
+ * ftrace graph code
+ *
+ * Copyright (C) 2009 Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/ftrace.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <asm/atomic.h>
+
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+
+/*
+ * Hook the return address and push it in the stack of return addrs
+ * in current thread info.
+ */
+void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
+{
+ struct ftrace_graph_ent trace;
+ unsigned long return_hooker = (unsigned long)&return_to_handler;
+
+ if (unlikely(atomic_read(&current->tracing_graph_pause)))
+ return;
+
+ if (ftrace_push_return_trace(*parent, self_addr, &trace.depth) == -EBUSY)
+ return;
+
+ trace.func = self_addr;
+
+ /* Only trace if the calling function expects to */
+ if (!ftrace_graph_entry(&trace)) {
+ current->curr_ret_stack--;
+ return;
+ }
+
+ /* all is well in the world ! hijack RETS ... */
+ *parent = return_hooker;
+}
+
+#endif
diff --git a/arch/blackfin/kernel/ipipe.c b/arch/blackfin/kernel/ipipe.c
index 5fc424803a1..d8cde1fc5cb 100644
--- a/arch/blackfin/kernel/ipipe.c
+++ b/arch/blackfin/kernel/ipipe.c
@@ -99,7 +99,7 @@ void __ipipe_handle_irq(unsigned irq, struct pt_regs *regs)
* interrupt.
*/
m_ack = (regs == NULL || irq == IRQ_SYSTMR || irq == IRQ_CORETMR);
- this_domain = ipipe_current_domain;
+ this_domain = __ipipe_current_domain;
if (unlikely(test_bit(IPIPE_STICKY_FLAG, &this_domain->irqs[irq].control)))
head = &this_domain->p_link;
@@ -212,7 +212,9 @@ void __ipipe_unstall_root_raw(void)
int __ipipe_syscall_root(struct pt_regs *regs)
{
+ struct ipipe_percpu_domain_data *p;
unsigned long flags;
+ int ret;
/*
* We need to run the IRQ tail hook whenever we don't
@@ -231,29 +233,31 @@ int __ipipe_syscall_root(struct pt_regs *regs)
/*
* This routine either returns:
* 0 -- if the syscall is to be passed to Linux;
- * 1 -- if the syscall should not be passed to Linux, and no
+ * >0 -- if the syscall should not be passed to Linux, and no
* tail work should be performed;
- * -1 -- if the syscall should not be passed to Linux but the
+ * <0 -- if the syscall should not be passed to Linux but the
* tail work has to be performed (for handling signals etc).
*/
- if (__ipipe_event_monitored_p(IPIPE_EVENT_SYSCALL) &&
- __ipipe_dispatch_event(IPIPE_EVENT_SYSCALL, regs) > 0) {
- if (ipipe_root_domain_p && !in_atomic()) {
- /*
- * Sync pending VIRQs before _TIF_NEED_RESCHED
- * is tested.
- */
- local_irq_save_hw(flags);
- if ((ipipe_root_cpudom_var(irqpend_himask) & IPIPE_IRQMASK_VIRT) != 0)
- __ipipe_sync_pipeline(IPIPE_IRQMASK_VIRT);
- local_irq_restore_hw(flags);
- return -1;
- }
+ if (!__ipipe_event_monitored_p(IPIPE_EVENT_SYSCALL))
+ return 0;
+
+ ret = __ipipe_dispatch_event(IPIPE_EVENT_SYSCALL, regs);
+
+ local_irq_save_hw(flags);
+
+ if (!__ipipe_root_domain_p) {
+ local_irq_restore_hw(flags);
return 1;
}
- return 0;
+ p = ipipe_root_cpudom_ptr();
+ if ((p->irqpend_himask & IPIPE_IRQMASK_VIRT) != 0)
+ __ipipe_sync_pipeline(IPIPE_IRQMASK_VIRT);
+
+ local_irq_restore_hw(flags);
+
+ return -ret;
}
unsigned long ipipe_critical_enter(void (*syncfn) (void))
@@ -329,9 +333,7 @@ asmlinkage void __ipipe_sync_root(void)
void ___ipipe_sync_pipeline(unsigned long syncmask)
{
- struct ipipe_domain *ipd = ipipe_current_domain;
-
- if (ipd == ipipe_root_domain) {
+ if (__ipipe_root_domain_p) {
if (test_bit(IPIPE_SYNCDEFER_FLAG, &ipipe_root_cpudom_var(status)))
return;
}
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 80447f99c2b..6454babdfaf 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -1098,7 +1098,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
CPUID, bfin_cpuid());
seq_printf(m, "model name\t: ADSP-%s %lu(MHz CCLK) %lu(MHz SCLK) (%s)\n"
- "stepping\t: %d\n",
+ "stepping\t: %d ",
cpu, cclk/1000000, sclk/1000000,
#ifdef CONFIG_MPU
"mpu on",
@@ -1107,7 +1107,16 @@ static int show_cpuinfo(struct seq_file *m, void *v)
#endif
revid);
- seq_printf(m, "cpu MHz\t\t: %lu.%03lu/%lu.%03lu\n",
+ if (bfin_revid() != bfin_compiled_revid()) {
+ if (bfin_compiled_revid() == -1)
+ seq_printf(m, "(Compiled for Rev none)");
+ else if (bfin_compiled_revid() == 0xffff)
+ seq_printf(m, "(Compiled for Rev any)");
+ else
+ seq_printf(m, "(Compiled for Rev %d)", bfin_compiled_revid());
+ }
+
+ seq_printf(m, "\ncpu MHz\t\t: %lu.%03lu/%lu.%03lu\n",
cclk/1000000, cclk%1000000,
sclk/1000000, sclk%1000000);
seq_printf(m, "bogomips\t: %lu.%02lu\n"
@@ -1172,6 +1181,9 @@ static int show_cpuinfo(struct seq_file *m, void *v)
#ifdef __ARCH_SYNC_CORE_DCACHE
seq_printf(m, "SMP Dcache Flushes\t: %lu\n\n", cpudata->dcache_invld_count);
#endif
+#ifdef __ARCH_SYNC_CORE_ICACHE
+ seq_printf(m, "SMP Icache Flushes\t: %lu\n\n", cpudata->icache_invld_count);
+#endif
#ifdef CONFIG_BFIN_ICACHE_LOCK
switch ((cpudata->imemctl >> 3) & WAYALL_L) {
case WAY0_L:
diff --git a/arch/blackfin/kernel/stacktrace.c b/arch/blackfin/kernel/stacktrace.c
new file mode 100644
index 00000000000..30301e1eace
--- /dev/null
+++ b/arch/blackfin/kernel/stacktrace.c
@@ -0,0 +1,53 @@
+/*
+ * Blackfin stacktrace code (mostly copied from avr32)
+ *
+ * Copyright 2009 Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/sched.h>
+#include <linux/stacktrace.h>
+#include <linux/thread_info.h>
+#include <linux/module.h>
+
+register unsigned long current_frame_pointer asm("FP");
+
+struct stackframe {
+ unsigned long fp;
+ unsigned long rets;
+};
+
+/*
+ * Save stack-backtrace addresses into a stack_trace buffer.
+ */
+void save_stack_trace(struct stack_trace *trace)
+{
+ unsigned long low, high;
+ unsigned long fp;
+ struct stackframe *frame;
+ int skip = trace->skip;
+
+ low = (unsigned long)task_stack_page(current);
+ high = low + THREAD_SIZE;
+ fp = current_frame_pointer;
+
+ while (fp >= low && fp <= (high - sizeof(*frame))) {
+ frame = (struct stackframe *)fp;
+
+ if (skip) {
+ skip--;
+ } else {
+ trace->entries[trace->nr_entries++] = frame->rets;
+ if (trace->nr_entries >= trace->max_entries)
+ break;
+ }
+
+ /*
+ * The next frame must be at a higher address than the
+ * current frame.
+ */
+ low = fp + sizeof(*frame);
+ fp = frame->fp;
+ }
+}
+EXPORT_SYMBOL_GPL(save_stack_trace);
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index aa76dfb0226..d279552fe9b 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -27,6 +27,7 @@
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <linux/bug.h>
#include <linux/uaccess.h>
#include <linux/interrupt.h>
#include <linux/module.h>
@@ -238,6 +239,11 @@ asmlinkage void double_fault_c(struct pt_regs *fp)
}
+static int kernel_mode_regs(struct pt_regs *regs)
+{
+ return regs->ipend & 0xffc0;
+}
+
asmlinkage void trap_c(struct pt_regs *fp)
{
#ifdef CONFIG_DEBUG_BFIN_HWTRACE_ON
@@ -246,6 +252,7 @@ asmlinkage void trap_c(struct pt_regs *fp)
#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
unsigned int cpu = smp_processor_id();
#endif
+ const char *strerror = NULL;
int sig = 0;
siginfo_t info;
unsigned long trapnr = fp->seqstat & SEQSTAT_EXCAUSE;
@@ -259,27 +266,10 @@ asmlinkage void trap_c(struct pt_regs *fp)
* double faults if the stack has become corrupt
*/
- /* If the fault was caused by a kernel thread, or interrupt handler
- * we will kernel panic, so the system reboots.
- * If KGDB is enabled, don't set this for kernel breakpoints
- */
-
- /* TODO: check to see if we are in some sort of deferred HWERR
- * that we should be able to recover from, not kernel panic
- */
- if ((bfin_read_IPEND() & 0xFFC0) && (trapnr != VEC_STEP)
-#ifdef CONFIG_KGDB
- && (trapnr != VEC_EXCPT02)
+#ifndef CONFIG_KGDB
+ /* IPEND is skipped if KGDB isn't enabled (see entry code) */
+ fp->ipend = bfin_read_IPEND();
#endif
- ){
- console_verbose();
- oops_in_progress = 1;
- } else if (current) {
- if (current->mm == NULL) {
- console_verbose();
- oops_in_progress = 1;
- }
- }
/* trap_c() will be called for exceptions. During exceptions
* processing, the pc value should be set with retx value.
@@ -307,15 +297,15 @@ asmlinkage void trap_c(struct pt_regs *fp)
sig = SIGTRAP;
CHK_DEBUGGER_TRAP_MAYBE();
/* Check if this is a breakpoint in kernel space */
- if (fp->ipend & 0xffc0)
- return;
+ if (kernel_mode_regs(fp))
+ goto traps_done;
else
break;
/* 0x03 - User Defined, userspace stack overflow */
case VEC_EXCPT03:
info.si_code = SEGV_STACKFLOW;
sig = SIGSEGV;
- verbose_printk(KERN_NOTICE EXC_0x03(KERN_NOTICE));
+ strerror = KERN_NOTICE EXC_0x03(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x02 - KGDB initial connection and break signal trap */
@@ -324,7 +314,7 @@ asmlinkage void trap_c(struct pt_regs *fp)
info.si_code = TRAP_ILLTRAP;
sig = SIGTRAP;
CHK_DEBUGGER_TRAP();
- return;
+ goto traps_done;
#endif
/* 0x04 - User Defined */
/* 0x05 - User Defined */
@@ -344,7 +334,7 @@ asmlinkage void trap_c(struct pt_regs *fp)
case VEC_EXCPT04 ... VEC_EXCPT15:
info.si_code = ILL_ILLPARAOP;
sig = SIGILL;
- verbose_printk(KERN_NOTICE EXC_0x04(KERN_NOTICE));
+ strerror = KERN_NOTICE EXC_0x04(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x10 HW Single step, handled here */
@@ -353,15 +343,15 @@ asmlinkage void trap_c(struct pt_regs *fp)
sig = SIGTRAP;
CHK_DEBUGGER_TRAP_MAYBE();
/* Check if this is a single step in kernel space */
- if (fp->ipend & 0xffc0)
- return;
+ if (kernel_mode_regs(fp))
+ goto traps_done;
else
break;
/* 0x11 - Trace Buffer Full, handled here */
case VEC_OVFLOW:
info.si_code = TRAP_TRACEFLOW;
sig = SIGTRAP;
- verbose_printk(KERN_NOTICE EXC_0x11(KERN_NOTICE));
+ strerror = KERN_NOTICE EXC_0x11(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x12 - Reserved, Caught by default */
@@ -381,37 +371,54 @@ asmlinkage void trap_c(struct pt_regs *fp)
/* 0x20 - Reserved, Caught by default */
/* 0x21 - Undefined Instruction, handled here */
case VEC_UNDEF_I:
+#ifdef CONFIG_BUG
+ if (kernel_mode_regs(fp)) {
+ switch (report_bug(fp->pc, fp)) {
+ case BUG_TRAP_TYPE_NONE:
+ break;
+ case BUG_TRAP_TYPE_WARN:
+ dump_bfin_trace_buffer();
+ fp->pc += 2;
+ goto traps_done;
+ case BUG_TRAP_TYPE_BUG:
+ /* call to panic() will dump trace, and it is
+ * off at this point, so it won't be clobbered
+ */
+ panic("BUG()");
+ }
+ }
+#endif
info.si_code = ILL_ILLOPC;
sig = SIGILL;
- verbose_printk(KERN_NOTICE EXC_0x21(KERN_NOTICE));
+ strerror = KERN_NOTICE EXC_0x21(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x22 - Illegal Instruction Combination, handled here */
case VEC_ILGAL_I:
info.si_code = ILL_ILLPARAOP;
sig = SIGILL;
- verbose_printk(KERN_NOTICE EXC_0x22(KERN_NOTICE));
+ strerror = KERN_NOTICE EXC_0x22(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x23 - Data CPLB protection violation, handled here */
case VEC_CPLB_VL:
info.si_code = ILL_CPLB_VI;
sig = SIGBUS;
- verbose_printk(KERN_NOTICE EXC_0x23(KERN_NOTICE));
+ strerror = KERN_NOTICE EXC_0x23(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x24 - Data access misaligned, handled here */
case VEC_MISALI_D:
info.si_code = BUS_ADRALN;
sig = SIGBUS;
- verbose_printk(KERN_NOTICE EXC_0x24(KERN_NOTICE));
+ strerror = KERN_NOTICE EXC_0x24(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x25 - Unrecoverable Event, handled here */
case VEC_UNCOV:
info.si_code = ILL_ILLEXCPT;
sig = SIGILL;
- verbose_printk(KERN_NOTICE EXC_0x25(KERN_NOTICE));
+ strerror = KERN_NOTICE EXC_0x25(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x26 - Data CPLB Miss, normal case is handled in _cplb_hdr,
@@ -419,7 +426,7 @@ asmlinkage void trap_c(struct pt_regs *fp)
case VEC_CPLB_M:
info.si_code = BUS_ADRALN;
sig = SIGBUS;
- verbose_printk(KERN_NOTICE EXC_0x26(KERN_NOTICE));
+ strerror = KERN_NOTICE EXC_0x26(KERN_NOTICE);
break;
/* 0x27 - Data CPLB Multiple Hits - Linux Trap Zero, handled here */
case VEC_CPLB_MHIT:
@@ -427,10 +434,10 @@ asmlinkage void trap_c(struct pt_regs *fp)
sig = SIGSEGV;
#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
if (cpu_pda[cpu].dcplb_fault_addr < FIXED_CODE_START)
- verbose_printk(KERN_NOTICE "NULL pointer access\n");
+ strerror = KERN_NOTICE "NULL pointer access\n";
else
#endif
- verbose_printk(KERN_NOTICE EXC_0x27(KERN_NOTICE));
+ strerror = KERN_NOTICE EXC_0x27(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x28 - Emulation Watchpoint, handled here */
@@ -440,8 +447,8 @@ asmlinkage void trap_c(struct pt_regs *fp)
pr_debug(EXC_0x28(KERN_DEBUG));
CHK_DEBUGGER_TRAP_MAYBE();
/* Check if this is a watchpoint in kernel space */
- if (fp->ipend & 0xffc0)
- return;
+ if (kernel_mode_regs(fp))
+ goto traps_done;
else
break;
#ifdef CONFIG_BF535
@@ -449,7 +456,7 @@ asmlinkage void trap_c(struct pt_regs *fp)
case VEC_ISTRU_VL: /* ADSP-BF535 only (MH) */
info.si_code = BUS_OPFETCH;
sig = SIGBUS;
- verbose_printk(KERN_NOTICE "BF535: VEC_ISTRU_VL\n");
+ strerror = KERN_NOTICE "BF535: VEC_ISTRU_VL\n";
CHK_DEBUGGER_TRAP_MAYBE();
break;
#else
@@ -459,21 +466,21 @@ asmlinkage void trap_c(struct pt_regs *fp)
case VEC_MISALI_I:
info.si_code = BUS_ADRALN;
sig = SIGBUS;
- verbose_printk(KERN_NOTICE EXC_0x2A(KERN_NOTICE));
+ strerror = KERN_NOTICE EXC_0x2A(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x2B - Instruction CPLB protection violation, handled here */
case VEC_CPLB_I_VL:
info.si_code = ILL_CPLB_VI;
sig = SIGBUS;
- verbose_printk(KERN_NOTICE EXC_0x2B(KERN_NOTICE));
+ strerror = KERN_NOTICE EXC_0x2B(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x2C - Instruction CPLB miss, handled in _cplb_hdr */
case VEC_CPLB_I_M:
info.si_code = ILL_CPLB_MISS;
sig = SIGBUS;
- verbose_printk(KERN_NOTICE EXC_0x2C(KERN_NOTICE));
+ strerror = KERN_NOTICE EXC_0x2C(KERN_NOTICE);
break;
/* 0x2D - Instruction CPLB Multiple Hits, handled here */
case VEC_CPLB_I_MHIT:
@@ -481,17 +488,17 @@ asmlinkage void trap_c(struct pt_regs *fp)
sig = SIGSEGV;
#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
if (cpu_pda[cpu].icplb_fault_addr < FIXED_CODE_START)
- verbose_printk(KERN_NOTICE "Jump to NULL address\n");
+ strerror = KERN_NOTICE "Jump to NULL address\n";
else
#endif
- verbose_printk(KERN_NOTICE EXC_0x2D(KERN_NOTICE));
+ strerror = KERN_NOTICE EXC_0x2D(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x2E - Illegal use of Supervisor Resource, handled here */
case VEC_ILL_RES:
info.si_code = ILL_PRVOPC;
sig = SIGILL;
- verbose_printk(KERN_NOTICE EXC_0x2E(KERN_NOTICE));
+ strerror = KERN_NOTICE EXC_0x2E(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x2F - Reserved, Caught by default */
@@ -519,17 +526,17 @@ asmlinkage void trap_c(struct pt_regs *fp)
case (SEQSTAT_HWERRCAUSE_SYSTEM_MMR):
info.si_code = BUS_ADRALN;
sig = SIGBUS;
- verbose_printk(KERN_NOTICE HWC_x2(KERN_NOTICE));
+ strerror = KERN_NOTICE HWC_x2(KERN_NOTICE);
break;
/* External Memory Addressing Error */
case (SEQSTAT_HWERRCAUSE_EXTERN_ADDR):
info.si_code = BUS_ADRERR;
sig = SIGBUS;
- verbose_printk(KERN_NOTICE HWC_x3(KERN_NOTICE));
+ strerror = KERN_NOTICE HWC_x3(KERN_NOTICE);
break;
/* Performance Monitor Overflow */
case (SEQSTAT_HWERRCAUSE_PERF_FLOW):
- verbose_printk(KERN_NOTICE HWC_x12(KERN_NOTICE));
+ strerror = KERN_NOTICE HWC_x12(KERN_NOTICE);
break;
/* RAISE 5 instruction */
case (SEQSTAT_HWERRCAUSE_RAISE_5):
@@ -546,7 +553,6 @@ asmlinkage void trap_c(struct pt_regs *fp)
* if we get here we hit a reserved one, so panic
*/
default:
- oops_in_progress = 1;
info.si_code = ILL_ILLPARAOP;
sig = SIGILL;
verbose_printk(KERN_EMERG "Caught Unhandled Exception, code = %08lx\n",
@@ -557,6 +563,16 @@ asmlinkage void trap_c(struct pt_regs *fp)
BUG_ON(sig == 0);
+ /* If the fault was caused by a kernel thread, or interrupt handler
+ * we will kernel panic, so the system reboots.
+ */
+ if (kernel_mode_regs(fp) || (current && !current->mm)) {
+ console_verbose();
+ oops_in_progress = 1;
+ if (strerror)
+ verbose_printk(strerror);
+ }
+
if (sig != SIGTRAP) {
dump_bfin_process(fp);
dump_bfin_mem(fp);
@@ -606,8 +622,8 @@ asmlinkage void trap_c(struct pt_regs *fp)
if (ANOMALY_05000461 && trapnr == VEC_HWERR && !access_ok(VERIFY_READ, fp->pc, 8))
fp->pc = SAFE_USER_INSTRUCTION;
+ traps_done:
trace_buffer_restore(j);
- return;
}
/* Typical exception handling routines */
@@ -792,6 +808,18 @@ void dump_bfin_trace_buffer(void)
}
EXPORT_SYMBOL(dump_bfin_trace_buffer);
+#ifdef CONFIG_BUG
+int is_valid_bugaddr(unsigned long addr)
+{
+ unsigned short opcode;
+
+ if (!get_instruction(&opcode, (unsigned short *)addr))
+ return 0;
+
+ return opcode == BFIN_BUG_OPCODE;
+}
+#endif
+
/*
* Checks to see if the address pointed to is either a
* 16-bit CALL instruction, or a 32-bit CALL instruction
diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S
index 8b67167cb4f..6ac307ca0d8 100644
--- a/arch/blackfin/kernel/vmlinux.lds.S
+++ b/arch/blackfin/kernel/vmlinux.lds.S
@@ -54,6 +54,7 @@ SECTIONS
SCHED_TEXT
#endif
LOCK_TEXT
+ IRQENTRY_TEXT
KPROBES_TEXT
*(.text.*)
*(.fixup)
@@ -166,6 +167,20 @@ SECTIONS
}
PERCPU(4)
SECURITY_INIT
+
+ /* we have to discard exit text and such at runtime, not link time, to
+ * handle embedded cross-section references (alt instructions, bug
+ * table, eh_frame, etc...)
+ */
+ .exit.text :
+ {
+ EXIT_TEXT
+ }
+ .exit.data :
+ {
+ EXIT_DATA
+ }
+
.init.ramfs :
{
. = ALIGN(4);
@@ -264,8 +279,6 @@ SECTIONS
/DISCARD/ :
{
- EXIT_TEXT
- EXIT_DATA
*(.exitcall.exit)
}
}
diff --git a/arch/blackfin/lib/checksum.c b/arch/blackfin/lib/checksum.c
index 762a7f02970..cd605e7d851 100644
--- a/arch/blackfin/lib/checksum.c
+++ b/arch/blackfin/lib/checksum.c
@@ -116,6 +116,7 @@ __sum16 ip_compute_csum(const void *buff, int len)
{
return (__force __sum16)~do_csum(buff, len);
}
+EXPORT_SYMBOL(ip_compute_csum);
/*
* copy from fs while checksumming, otherwise like csum_partial
@@ -130,6 +131,7 @@ csum_partial_copy_from_user(const void __user *src, void *dst,
memcpy(dst, (__force void *)src, len);
return csum_partial(dst, len, sum);
}
+EXPORT_SYMBOL(csum_partial_copy_from_user);
/*
* copy from ds while checksumming, otherwise like csum_partial
diff --git a/arch/blackfin/mach-bf518/boards/ezbrd.c b/arch/blackfin/mach-bf518/boards/ezbrd.c
index 62bba09bcce..1382f038235 100644
--- a/arch/blackfin/mach-bf518/boards/ezbrd.c
+++ b/arch/blackfin/mach-bf518/boards/ezbrd.c
@@ -246,7 +246,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
.modalias = "m25p80", /* Name of spi_driver for this device */
.max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */
.bus_num = 0, /* Framework bus number */
- .chip_select = 1, /* Framework chip select. On STAMP537 it is SPISSEL1*/
+ .chip_select = 2, /* On BF518F-EZBRD it's SPI0_SSEL2 */
.platform_data = &bfin_spi_flash_data,
.controller_data = &spi_flash_chip_info,
.mode = SPI_MODE_3,
@@ -369,6 +369,11 @@ static struct resource bfin_spi0_resource[] = {
[1] = {
.start = CH_SPI0,
.end = CH_SPI0,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI0,
+ .end = IRQ_SPI0,
.flags = IORESOURCE_IRQ,
},
};
@@ -399,6 +404,11 @@ static struct resource bfin_spi1_resource[] = {
[1] = {
.start = CH_SPI1,
.end = CH_SPI1,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI1,
+ .end = IRQ_SPI1,
.flags = IORESOURCE_IRQ,
},
};
diff --git a/arch/blackfin/mach-bf527/boards/cm_bf527.c b/arch/blackfin/mach-bf527/boards/cm_bf527.c
index 6d6f9effa0b..1eaf27ff722 100644
--- a/arch/blackfin/mach-bf527/boards/cm_bf527.c
+++ b/arch/blackfin/mach-bf527/boards/cm_bf527.c
@@ -664,6 +664,11 @@ static struct resource bfin_spi0_resource[] = {
[1] = {
.start = CH_SPI,
.end = CH_SPI,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI,
+ .end = IRQ_SPI,
.flags = IORESOURCE_IRQ,
},
};
diff --git a/arch/blackfin/mach-bf527/boards/ezbrd.c b/arch/blackfin/mach-bf527/boards/ezbrd.c
index 1435c5d38cd..9f9c0005dcf 100644
--- a/arch/blackfin/mach-bf527/boards/ezbrd.c
+++ b/arch/blackfin/mach-bf527/boards/ezbrd.c
@@ -467,6 +467,11 @@ static struct resource bfin_spi0_resource[] = {
[1] = {
.start = CH_SPI,
.end = CH_SPI,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI,
+ .end = IRQ_SPI,
.flags = IORESOURCE_IRQ,
},
};
diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c
index 147edd1eb1a..3e5b7db6b06 100644
--- a/arch/blackfin/mach-bf527/boards/ezkit.c
+++ b/arch/blackfin/mach-bf527/boards/ezkit.c
@@ -723,6 +723,11 @@ static struct resource bfin_spi0_resource[] = {
[1] = {
.start = CH_SPI,
.end = CH_SPI,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI,
+ .end = IRQ_SPI,
.flags = IORESOURCE_IRQ,
},
};
diff --git a/arch/blackfin/mach-bf533/boards/H8606.c b/arch/blackfin/mach-bf533/boards/H8606.c
index 895f213ea45..38cf8ffd6d7 100644
--- a/arch/blackfin/mach-bf533/boards/H8606.c
+++ b/arch/blackfin/mach-bf533/boards/H8606.c
@@ -266,6 +266,11 @@ static struct resource bfin_spi0_resource[] = {
[1] = {
.start = CH_SPI,
.end = CH_SPI,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI,
+ .end = IRQ_SPI,
.flags = IORESOURCE_IRQ,
}
};
diff --git a/arch/blackfin/mach-bf533/boards/blackstamp.c b/arch/blackfin/mach-bf533/boards/blackstamp.c
index 0765872a8ad..9ecdc361fa6 100644
--- a/arch/blackfin/mach-bf533/boards/blackstamp.c
+++ b/arch/blackfin/mach-bf533/boards/blackstamp.c
@@ -162,6 +162,11 @@ static struct resource bfin_spi0_resource[] = {
[1] = {
.start = CH_SPI,
.end = CH_SPI,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI,
+ .end = IRQ_SPI,
.flags = IORESOURCE_IRQ,
}
};
diff --git a/arch/blackfin/mach-bf533/boards/cm_bf533.c b/arch/blackfin/mach-bf533/boards/cm_bf533.c
index a727e538fa2..1443e92d8b6 100644
--- a/arch/blackfin/mach-bf533/boards/cm_bf533.c
+++ b/arch/blackfin/mach-bf533/boards/cm_bf533.c
@@ -160,6 +160,11 @@ static struct resource bfin_spi0_resource[] = {
[1] = {
.start = CH_SPI,
.end = CH_SPI,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI,
+ .end = IRQ_SPI,
.flags = IORESOURCE_IRQ,
}
};
diff --git a/arch/blackfin/mach-bf533/boards/ezkit.c b/arch/blackfin/mach-bf533/boards/ezkit.c
index 842f1c9c239..89a5ec4ca04 100644
--- a/arch/blackfin/mach-bf533/boards/ezkit.c
+++ b/arch/blackfin/mach-bf533/boards/ezkit.c
@@ -196,6 +196,11 @@ static struct resource bfin_spi0_resource[] = {
[1] = {
.start = CH_SPI,
.end = CH_SPI,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI,
+ .end = IRQ_SPI,
.flags = IORESOURCE_IRQ,
}
};
diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c
index e19c565ade1..a68ade8a3ca 100644
--- a/arch/blackfin/mach-bf533/boards/stamp.c
+++ b/arch/blackfin/mach-bf533/boards/stamp.c
@@ -299,6 +299,11 @@ static struct resource bfin_spi0_resource[] = {
[1] = {
.start = CH_SPI,
.end = CH_SPI,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI,
+ .end = IRQ_SPI,
.flags = IORESOURCE_IRQ,
}
};
diff --git a/arch/blackfin/mach-bf537/boards/cm_bf537.c b/arch/blackfin/mach-bf537/boards/cm_bf537.c
index 4fee1967312..2a87d1cfcd0 100644
--- a/arch/blackfin/mach-bf537/boards/cm_bf537.c
+++ b/arch/blackfin/mach-bf537/boards/cm_bf537.c
@@ -182,8 +182,13 @@ static struct resource bfin_spi0_resource[] = {
[1] = {
.start = CH_SPI,
.end = CH_SPI,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI,
+ .end = IRQ_SPI,
.flags = IORESOURCE_IRQ,
- }
+ },
};
/* SPI controller data */
diff --git a/arch/blackfin/mach-bf537/boards/minotaur.c b/arch/blackfin/mach-bf537/boards/minotaur.c
index 3c159819e55..399f81da7b9 100644
--- a/arch/blackfin/mach-bf537/boards/minotaur.c
+++ b/arch/blackfin/mach-bf537/boards/minotaur.c
@@ -184,6 +184,11 @@ static struct resource bfin_spi0_resource[] = {
[1] = {
.start = CH_SPI,
.end = CH_SPI,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI,
+ .end = IRQ_SPI,
.flags = IORESOURCE_IRQ,
},
};
diff --git a/arch/blackfin/mach-bf537/boards/pnav10.c b/arch/blackfin/mach-bf537/boards/pnav10.c
index 26707ce39f2..838240f151f 100644
--- a/arch/blackfin/mach-bf537/boards/pnav10.c
+++ b/arch/blackfin/mach-bf537/boards/pnav10.c
@@ -398,8 +398,13 @@ static struct resource bfin_spi0_resource[] = {
[1] = {
.start = CH_SPI,
.end = CH_SPI,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI,
+ .end = IRQ_SPI,
.flags = IORESOURCE_IRQ,
- }
+ },
};
/* SPI controller data */
diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index dfb5036f8a6..ff7228caa7d 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -1345,7 +1345,7 @@ static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
#if defined(CONFIG_PMIC_ADP5520) || defined(CONFIG_PMIC_ADP5520_MODULE)
{
I2C_BOARD_INFO("pmic-adp5520", 0x32),
- .irq = IRQ_PF7,
+ .irq = IRQ_PG0,
.platform_data = (void *)&adp5520_pdev_data,
},
#endif
diff --git a/arch/blackfin/mach-bf537/boards/tcm_bf537.c b/arch/blackfin/mach-bf537/boards/tcm_bf537.c
index 28057459120..e523e6e610d 100644
--- a/arch/blackfin/mach-bf537/boards/tcm_bf537.c
+++ b/arch/blackfin/mach-bf537/boards/tcm_bf537.c
@@ -182,6 +182,11 @@ static struct resource bfin_spi0_resource[] = {
[1] = {
.start = CH_SPI,
.end = CH_SPI,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI,
+ .end = IRQ_SPI,
.flags = IORESOURCE_IRQ,
}
};
diff --git a/arch/blackfin/mach-bf538/boards/ezkit.c b/arch/blackfin/mach-bf538/boards/ezkit.c
index e37cb937888..57695b4c3c0 100644
--- a/arch/blackfin/mach-bf538/boards/ezkit.c
+++ b/arch/blackfin/mach-bf538/boards/ezkit.c
@@ -352,6 +352,11 @@ static struct resource bfin_spi0_resource[] = {
[1] = {
.start = CH_SPI0,
.end = CH_SPI0,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI0,
+ .end = IRQ_SPI0,
.flags = IORESOURCE_IRQ,
}
};
@@ -366,6 +371,11 @@ static struct resource bfin_spi1_resource[] = {
[1] = {
.start = CH_SPI1,
.end = CH_SPI1,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI1,
+ .end = IRQ_SPI1,
.flags = IORESOURCE_IRQ,
}
};
diff --git a/arch/blackfin/mach-bf548/boards/cm_bf548.c b/arch/blackfin/mach-bf548/boards/cm_bf548.c
index f53ad682530..f5a3c30a41b 100644
--- a/arch/blackfin/mach-bf548/boards/cm_bf548.c
+++ b/arch/blackfin/mach-bf548/boards/cm_bf548.c
@@ -612,6 +612,11 @@ static struct resource bfin_spi0_resource[] = {
[1] = {
.start = CH_SPI0,
.end = CH_SPI0,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI0,
+ .end = IRQ_SPI0,
.flags = IORESOURCE_IRQ,
}
};
@@ -626,6 +631,11 @@ static struct resource bfin_spi1_resource[] = {
[1] = {
.start = CH_SPI1,
.end = CH_SPI1,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI1,
+ .end = IRQ_SPI1,
.flags = IORESOURCE_IRQ,
}
};
diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c
index add5a17452c..805a57b5e65 100644
--- a/arch/blackfin/mach-bf548/boards/ezkit.c
+++ b/arch/blackfin/mach-bf548/boards/ezkit.c
@@ -396,6 +396,8 @@ static struct platform_device bfin_sir3_device = {
#endif
#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
+#include <linux/smsc911x.h>
+
static struct resource smsc911x_resources[] = {
{
.name = "smsc911x-memory",
@@ -409,11 +411,22 @@ static struct resource smsc911x_resources[] = {
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
},
};
+
+static struct smsc911x_platform_config smsc911x_config = {
+ .flags = SMSC911X_USE_32BIT,
+ .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
+ .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
+ .phy_interface = PHY_INTERFACE_MODE_MII,
+};
+
static struct platform_device smsc911x_device = {
.name = "smsc911x",
.id = 0,
.num_resources = ARRAY_SIZE(smsc911x_resources),
.resource = smsc911x_resources,
+ .dev = {
+ .platform_data = &smsc911x_config,
+ },
};
#endif
@@ -741,6 +754,11 @@ static struct resource bfin_spi0_resource[] = {
[1] = {
.start = CH_SPI0,
.end = CH_SPI0,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI0,
+ .end = IRQ_SPI0,
.flags = IORESOURCE_IRQ,
}
};
@@ -755,6 +773,11 @@ static struct resource bfin_spi1_resource[] = {
[1] = {
.start = CH_SPI1,
.end = CH_SPI1,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI1,
+ .end = IRQ_SPI1,
.flags = IORESOURCE_IRQ,
}
};
diff --git a/arch/blackfin/mach-bf561/boards/cm_bf561.c b/arch/blackfin/mach-bf561/boards/cm_bf561.c
index 0dd9685e5d5..0c9d72c5f5b 100644
--- a/arch/blackfin/mach-bf561/boards/cm_bf561.c
+++ b/arch/blackfin/mach-bf561/boards/cm_bf561.c
@@ -177,8 +177,13 @@ static struct resource bfin_spi0_resource[] = {
[1] = {
.start = CH_SPI,
.end = CH_SPI,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI,
+ .end = IRQ_SPI,
.flags = IORESOURCE_IRQ,
- }
+ },
};
/* SPI controller data */
diff --git a/arch/blackfin/mach-bf561/boards/ezkit.c b/arch/blackfin/mach-bf561/boards/ezkit.c
index 0e2178a1aec..b5ef7ff7b7b 100644
--- a/arch/blackfin/mach-bf561/boards/ezkit.c
+++ b/arch/blackfin/mach-bf561/boards/ezkit.c
@@ -304,6 +304,11 @@ static struct resource bfin_spi0_resource[] = {
[1] = {
.start = CH_SPI,
.end = CH_SPI,
+ .flags = IORESOURCE_DMA,
+ },
+ [2] = {
+ .start = IRQ_SPI,
+ .end = IRQ_SPI,
.flags = IORESOURCE_IRQ,
}
};
diff --git a/arch/blackfin/mach-common/cache-c.c b/arch/blackfin/mach-common/cache-c.c
index e6ab1f81512..b59ce3cb380 100644
--- a/arch/blackfin/mach-common/cache-c.c
+++ b/arch/blackfin/mach-common/cache-c.c
@@ -16,9 +16,21 @@
void blackfin_invalidate_entire_dcache(void)
{
u32 dmem = bfin_read_DMEM_CONTROL();
- SSYNC();
bfin_write_DMEM_CONTROL(dmem & ~0xc);
SSYNC();
bfin_write_DMEM_CONTROL(dmem);
SSYNC();
}
+
+/* Invalidate the Entire Instruction cache by
+ * clearing IMC bit
+ */
+void blackfin_invalidate_entire_icache(void)
+{
+ u32 imem = bfin_read_IMEM_CONTROL();
+ bfin_write_IMEM_CONTROL(imem & ~0x4);
+ SSYNC();
+ bfin_write_IMEM_CONTROL(imem);
+ SSYNC();
+}
+
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index da0558ad1b1..31fa313e81c 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -42,6 +42,7 @@
#include <asm/thread_info.h> /* TIF_NEED_RESCHED */
#include <asm/asm-offsets.h>
#include <asm/trace.h>
+#include <asm/traps.h>
#include <asm/context.S>
@@ -84,13 +85,15 @@ ENTRY(_ex_workaround_261)
if !cc jump _bfin_return_from_exception;
/* fall through */
R7 = P4;
- R6 = 0x26; /* Data CPLB Miss */
+ R6 = VEC_CPLB_M; /* Data CPLB Miss */
cc = R6 == R7;
if cc jump _ex_dcplb_miss (BP);
- R6 = 0x23; /* Data CPLB Miss */
+#ifdef CONFIG_MPU
+ R6 = VEC_CPLB_VL; /* Data CPLB Violation */
cc = R6 == R7;
if cc jump _ex_dcplb_viol (BP);
- /* Handle 0x23 Data CPLB Protection Violation
+#endif
+ /* Handle Data CPLB Protection Violation
* and Data CPLB Multiple Hits - Linux Trap Zero
*/
jump _ex_trap_c;
@@ -270,7 +273,7 @@ ENTRY(_bfin_return_from_exception)
r6.l = lo(SEQSTAT_EXCAUSE);
r6.h = hi(SEQSTAT_EXCAUSE);
r7 = r7 & r6;
- r6 = 0x25;
+ r6 = VEC_UNCOV;
CC = R7 == R6;
if CC JUMP _double_fault;
#endif
@@ -1605,6 +1608,7 @@ ENTRY(_sys_call_table)
.long _sys_inotify_init1 /* 365 */
.long _sys_preadv
.long _sys_pwritev
+ .long _sys_rt_tgsigqueueinfo
.rept NR_syscalls-(.-_sys_call_table)/4
.long _sys_ni_syscall
diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c
index 3b8ebaee77f..61840059dfa 100644
--- a/arch/blackfin/mach-common/smp.c
+++ b/arch/blackfin/mach-common/smp.c
@@ -144,7 +144,7 @@ static void ipi_call_function(unsigned int cpu, struct ipi_message *msg)
static irqreturn_t ipi_handler(int irq, void *dev_instance)
{
- struct ipi_message *msg, *mg;
+ struct ipi_message *msg;
struct ipi_message_queue *msg_queue;
unsigned int cpu = smp_processor_id();
@@ -154,7 +154,8 @@ static irqreturn_t ipi_handler(int irq, void *dev_instance)
msg_queue->count++;
spin_lock(&msg_queue->lock);
- list_for_each_entry_safe(msg, mg, &msg_queue->head, list) {
+ while (!list_empty(&msg_queue->head)) {
+ msg = list_entry(msg_queue->head.next, typeof(*msg), list);
list_del(&msg->list);
switch (msg->type) {
case BFIN_IPI_RESCHEDULE:
@@ -221,7 +222,7 @@ int smp_call_function(void (*func)(void *info), void *info, int wait)
for_each_cpu_mask(cpu, callmap) {
msg_queue = &per_cpu(ipi_msg_queue, cpu);
spin_lock_irqsave(&msg_queue->lock, flags);
- list_add(&msg->list, &msg_queue->head);
+ list_add_tail(&msg->list, &msg_queue->head);
spin_unlock_irqrestore(&msg_queue->lock, flags);
platform_send_ipi_cpu(cpu);
}
@@ -261,7 +262,7 @@ int smp_call_function_single(int cpuid, void (*func) (void *info), void *info,
msg_queue = &per_cpu(ipi_msg_queue, cpu);
spin_lock_irqsave(&msg_queue->lock, flags);
- list_add(&msg->list, &msg_queue->head);
+ list_add_tail(&msg->list, &msg_queue->head);
spin_unlock_irqrestore(&msg_queue->lock, flags);
platform_send_ipi_cpu(cpu);
@@ -292,7 +293,7 @@ void smp_send_reschedule(int cpu)
msg_queue = &per_cpu(ipi_msg_queue, cpu);
spin_lock_irqsave(&msg_queue->lock, flags);
- list_add(&msg->list, &msg_queue->head);
+ list_add_tail(&msg->list, &msg_queue->head);
spin_unlock_irqrestore(&msg_queue->lock, flags);
platform_send_ipi_cpu(cpu);
@@ -320,7 +321,7 @@ void smp_send_stop(void)
for_each_cpu_mask(cpu, callmap) {
msg_queue = &per_cpu(ipi_msg_queue, cpu);
spin_lock_irqsave(&msg_queue->lock, flags);
- list_add(&msg->list, &msg_queue->head);
+ list_add_tail(&msg->list, &msg_queue->head);
spin_unlock_irqrestore(&msg_queue->lock, flags);
platform_send_ipi_cpu(cpu);
}
@@ -468,6 +469,17 @@ void smp_icache_flush_range_others(unsigned long start, unsigned long end)
}
EXPORT_SYMBOL_GPL(smp_icache_flush_range_others);
+#ifdef __ARCH_SYNC_CORE_ICACHE
+void resync_core_icache(void)
+{
+ unsigned int cpu = get_cpu();
+ blackfin_invalidate_entire_icache();
+ ++per_cpu(cpu_data, cpu).icache_invld_count;
+ put_cpu();
+}
+EXPORT_SYMBOL(resync_core_icache);
+#endif
+
#ifdef __ARCH_SYNC_CORE_DCACHE
unsigned long barrier_mask __attribute__ ((__section__(".l2.bss")));