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-rw-r--r--arch/blackfin/Kconfig42
-rw-r--r--arch/blackfin/Kconfig.debug2
-rw-r--r--arch/blackfin/configs/BF518F-EZBRD_defconfig1
-rw-r--r--arch/blackfin/configs/BF526-EZBRD_defconfig1
-rw-r--r--arch/blackfin/configs/BF527-AD7160-EVAL_defconfig1
-rw-r--r--arch/blackfin/configs/BF527-EZKIT-V2_defconfig1
-rw-r--r--arch/blackfin/configs/BF527-EZKIT_defconfig1
-rw-r--r--arch/blackfin/configs/BF533-EZKIT_defconfig1
-rw-r--r--arch/blackfin/configs/BF533-STAMP_defconfig1
-rw-r--r--arch/blackfin/configs/BF537-STAMP_defconfig1
-rw-r--r--arch/blackfin/configs/BF538-EZKIT_defconfig2
-rw-r--r--arch/blackfin/configs/BF548-EZKIT_defconfig1
-rw-r--r--arch/blackfin/configs/BF561-ACVILON_defconfig1
-rw-r--r--arch/blackfin/configs/BF561-EZKIT-SMP_defconfig1
-rw-r--r--arch/blackfin/configs/BF561-EZKIT_defconfig1
-rw-r--r--arch/blackfin/configs/BlackStamp_defconfig1
-rw-r--r--arch/blackfin/configs/CM-BF527_defconfig1
-rw-r--r--arch/blackfin/configs/CM-BF533_defconfig1
-rw-r--r--arch/blackfin/configs/CM-BF548_defconfig1
-rw-r--r--arch/blackfin/configs/DNP5370_defconfig1
-rw-r--r--arch/blackfin/configs/H8606_defconfig1
-rw-r--r--arch/blackfin/configs/SRV1_defconfig1
-rw-r--r--arch/blackfin/include/asm/atomic.h2
-rw-r--r--arch/blackfin/include/asm/bitops.h5
-rw-r--r--arch/blackfin/include/asm/def_LPBlackfin.h16
-rw-r--r--arch/blackfin/include/asm/dpmc.h3
-rw-r--r--arch/blackfin/include/asm/ipipe.h95
-rw-r--r--arch/blackfin/include/asm/ipipe_base.h11
-rw-r--r--arch/blackfin/include/asm/irqflags.h87
-rw-r--r--arch/blackfin/include/asm/smp.h9
-rw-r--r--arch/blackfin/include/asm/system.h36
-rw-r--r--arch/blackfin/include/asm/traps.h2
-rw-r--r--arch/blackfin/include/asm/unistd.h6
-rw-r--r--arch/blackfin/kernel/bfin_dma_5xx.c32
-rw-r--r--arch/blackfin/kernel/gptimers.c2
-rw-r--r--arch/blackfin/kernel/ipipe.c84
-rw-r--r--arch/blackfin/kernel/irqchip.c10
-rw-r--r--arch/blackfin/kernel/kgdb.c6
-rw-r--r--arch/blackfin/kernel/module.c45
-rw-r--r--arch/blackfin/kernel/setup.c37
-rw-r--r--arch/blackfin/kernel/time-ts.c8
-rw-r--r--arch/blackfin/kernel/trace.c7
-rw-r--r--arch/blackfin/kernel/traps.c2
-rw-r--r--arch/blackfin/kernel/vmlinux.lds.S3
-rw-r--r--arch/blackfin/lib/ins.S2
-rw-r--r--arch/blackfin/lib/memmove.S2
-rw-r--r--arch/blackfin/mach-bf518/include/mach/defBF512.h19
-rw-r--r--arch/blackfin/mach-bf527/include/mach/defBF522.h19
-rw-r--r--arch/blackfin/mach-bf533/boards/ip0x.c2
-rw-r--r--arch/blackfin/mach-bf537/boards/cm_bf537e.c2
-rw-r--r--arch/blackfin/mach-bf537/boards/cm_bf537u.c2
-rw-r--r--arch/blackfin/mach-bf537/boards/dnp5370.c20
-rw-r--r--arch/blackfin/mach-bf537/boards/stamp.c2
-rw-r--r--arch/blackfin/mach-bf537/boards/tcm_bf537.c2
-rw-r--r--arch/blackfin/mach-bf537/include/mach/defBF534.h18
-rw-r--r--arch/blackfin/mach-bf548/Kconfig59
-rw-r--r--arch/blackfin/mach-bf548/boards/ezkit.c55
-rw-r--r--arch/blackfin/mach-bf548/include/mach/anomaly.h6
-rw-r--r--arch/blackfin/mach-bf548/include/mach/defBF544.h18
-rw-r--r--arch/blackfin/mach-bf548/include/mach/defBF547.h19
-rw-r--r--arch/blackfin/mach-bf548/include/mach/dma.h28
-rw-r--r--arch/blackfin/mach-bf548/include/mach/irq.h4
-rw-r--r--arch/blackfin/mach-bf561/boards/cm_bf561.c2
-rw-r--r--arch/blackfin/mach-bf561/hotplug.c26
-rw-r--r--arch/blackfin/mach-bf561/secondary.S35
-rw-r--r--arch/blackfin/mach-bf561/smp.c15
-rw-r--r--arch/blackfin/mach-common/arch_checks.c2
-rw-r--r--arch/blackfin/mach-common/cache.S38
-rw-r--r--arch/blackfin/mach-common/cpufreq.c8
-rw-r--r--arch/blackfin/mach-common/dpmc.c50
-rw-r--r--arch/blackfin/mach-common/entry.S19
-rw-r--r--arch/blackfin/mach-common/head.S112
-rw-r--r--arch/blackfin/mach-common/interrupt.S6
-rw-r--r--arch/blackfin/mach-common/ints-priority.c271
-rw-r--r--arch/blackfin/mach-common/smp.c35
75 files changed, 868 insertions, 603 deletions
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index c09577ddc3c..8addb1220b4 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -31,6 +31,7 @@ config BLACKFIN
select HAVE_OPROFILE
select ARCH_WANT_OPTIONAL_GPIOLIB
select HAVE_GENERIC_HARDIRQS
+ select GENERIC_ATOMIC64
select GENERIC_IRQ_PROBE
select IRQ_PER_CPU if SMP
@@ -690,13 +691,13 @@ endmenu
menu "Blackfin Kernel Optimizations"
- depends on !SMP
comment "Memory Optimizations"
config I_ENTRY_L1
bool "Locate interrupt entry code in L1 Memory"
default y
+ depends on !SMP
help
If enabled, interrupt entry code (STORE/RESTORE CONTEXT) is linked
into L1 instruction memory. (less latency)
@@ -704,6 +705,7 @@ config I_ENTRY_L1
config EXCPT_IRQ_SYSC_L1
bool "Locate entire ASM lowlevel exception / interrupt - Syscall and CPLB handler code in L1 Memory"
default y
+ depends on !SMP
help
If enabled, the entire ASM lowlevel exception and interrupt entry code
(STORE/RESTORE CONTEXT) is linked into L1 instruction memory.
@@ -712,6 +714,7 @@ config EXCPT_IRQ_SYSC_L1
config DO_IRQ_L1
bool "Locate frequently called do_irq dispatcher function in L1 Memory"
default y
+ depends on !SMP
help
If enabled, the frequently called do_irq dispatcher function is linked
into L1 instruction memory. (less latency)
@@ -719,6 +722,7 @@ config DO_IRQ_L1
config CORE_TIMER_IRQ_L1
bool "Locate frequently called timer_interrupt() function in L1 Memory"
default y
+ depends on !SMP
help
If enabled, the frequently called timer_interrupt() function is linked
into L1 instruction memory. (less latency)
@@ -726,6 +730,7 @@ config CORE_TIMER_IRQ_L1
config IDLE_L1
bool "Locate frequently idle function in L1 Memory"
default y
+ depends on !SMP
help
If enabled, the frequently called idle function is linked
into L1 instruction memory. (less latency)
@@ -733,6 +738,7 @@ config IDLE_L1
config SCHEDULE_L1
bool "Locate kernel schedule function in L1 Memory"
default y
+ depends on !SMP
help
If enabled, the frequently called kernel schedule is linked
into L1 instruction memory. (less latency)
@@ -740,6 +746,7 @@ config SCHEDULE_L1
config ARITHMETIC_OPS_L1
bool "Locate kernel owned arithmetic functions in L1 Memory"
default y
+ depends on !SMP
help
If enabled, arithmetic functions are linked
into L1 instruction memory. (less latency)
@@ -747,6 +754,7 @@ config ARITHMETIC_OPS_L1
config ACCESS_OK_L1
bool "Locate access_ok function in L1 Memory"
default y
+ depends on !SMP
help
If enabled, the access_ok function is linked
into L1 instruction memory. (less latency)
@@ -754,6 +762,7 @@ config ACCESS_OK_L1
config MEMSET_L1
bool "Locate memset function in L1 Memory"
default y
+ depends on !SMP
help
If enabled, the memset function is linked
into L1 instruction memory. (less latency)
@@ -761,6 +770,7 @@ config MEMSET_L1
config MEMCPY_L1
bool "Locate memcpy function in L1 Memory"
default y
+ depends on !SMP
help
If enabled, the memcpy function is linked
into L1 instruction memory. (less latency)
@@ -768,6 +778,7 @@ config MEMCPY_L1
config STRCMP_L1
bool "locate strcmp function in L1 Memory"
default y
+ depends on !SMP
help
If enabled, the strcmp function is linked
into L1 instruction memory (less latency).
@@ -775,6 +786,7 @@ config STRCMP_L1
config STRNCMP_L1
bool "locate strncmp function in L1 Memory"
default y
+ depends on !SMP
help
If enabled, the strncmp function is linked
into L1 instruction memory (less latency).
@@ -782,6 +794,7 @@ config STRNCMP_L1
config STRCPY_L1
bool "locate strcpy function in L1 Memory"
default y
+ depends on !SMP
help
If enabled, the strcpy function is linked
into L1 instruction memory (less latency).
@@ -789,6 +802,7 @@ config STRCPY_L1
config STRNCPY_L1
bool "locate strncpy function in L1 Memory"
default y
+ depends on !SMP
help
If enabled, the strncpy function is linked
into L1 instruction memory (less latency).
@@ -796,6 +810,7 @@ config STRNCPY_L1
config SYS_BFIN_SPINLOCK_L1
bool "Locate sys_bfin_spinlock function in L1 Memory"
default y
+ depends on !SMP
help
If enabled, sys_bfin_spinlock function is linked
into L1 instruction memory. (less latency)
@@ -803,6 +818,7 @@ config SYS_BFIN_SPINLOCK_L1
config IP_CHECKSUM_L1
bool "Locate IP Checksum function in L1 Memory"
default n
+ depends on !SMP
help
If enabled, the IP Checksum function is linked
into L1 instruction memory. (less latency)
@@ -811,7 +827,7 @@ config CACHELINE_ALIGNED_L1
bool "Locate cacheline_aligned data to L1 Data Memory"
default y if !BF54x
default n if BF54x
- depends on !BF531
+ depends on !SMP && !BF531
help
If enabled, cacheline_aligned data is linked
into L1 data memory. (less latency)
@@ -819,7 +835,7 @@ config CACHELINE_ALIGNED_L1
config SYSCALL_TAB_L1
bool "Locate Syscall Table L1 Data Memory"
default n
- depends on !BF531
+ depends on !SMP && !BF531
help
If enabled, the Syscall LUT is linked
into L1 data memory. (less latency)
@@ -827,16 +843,16 @@ config SYSCALL_TAB_L1
config CPLB_SWITCH_TAB_L1
bool "Locate CPLB Switch Tables L1 Data Memory"
default n
- depends on !BF531
+ depends on !SMP && !BF531
help
If enabled, the CPLB Switch Tables are linked
into L1 data memory. (less latency)
-config CACHE_FLUSH_L1
- bool "Locate cache flush funcs in L1 Inst Memory"
+config ICACHE_FLUSH_L1
+ bool "Locate icache flush funcs in L1 Inst Memory"
default y
help
- If enabled, the Blackfin cache flushing functions are linked
+ If enabled, the Blackfin icache flushing functions are linked
into L1 instruction memory.
Note that this might be required to address anomalies, but
@@ -844,9 +860,18 @@ config CACHE_FLUSH_L1
If you are using a processor affected by an anomaly, the build
system will double check for you and prevent it.
+config DCACHE_FLUSH_L1
+ bool "Locate dcache flush funcs in L1 Inst Memory"
+ default y
+ depends on !SMP
+ help
+ If enabled, the Blackfin dcache flushing functions are linked
+ into L1 instruction memory.
+
config APP_STACK_L1
bool "Support locating application stack in L1 Scratch Memory"
default y
+ depends on !SMP
help
If enabled the application stack can be located in L1
scratch memory (less latency).
@@ -856,7 +881,7 @@ config APP_STACK_L1
config EXCEPTION_L1_SCRATCH
bool "Locate exception stack in L1 Scratch Memory"
default n
- depends on !APP_STACK_L1
+ depends on !SMP && !APP_STACK_L1
help
Whenever an exception occurs, use the L1 Scratch memory for
stack storage. You cannot place the stacks of FLAT binaries
@@ -868,6 +893,7 @@ comment "Speed Optimizations"
config BFIN_INS_LOWOVERHEAD
bool "ins[bwl] low overhead, higher interrupt latency"
default y
+ depends on !SMP
help
Reads on the Blackfin are speculative. In Blackfin terms, this means
they can be interrupted at any time (even after they have been issued
diff --git a/arch/blackfin/Kconfig.debug b/arch/blackfin/Kconfig.debug
index acb83799a21..2641731f24c 100644
--- a/arch/blackfin/Kconfig.debug
+++ b/arch/blackfin/Kconfig.debug
@@ -59,7 +59,7 @@ config EXACT_HWERR
be reported multiple cycles after the error happens. This delay
can cause the wrong application, or even the kernel to receive a
signal to be killed. If you are getting HW errors in your system,
- try turning this on to ensure they are at least comming from the
+ try turning this on to ensure they are at least coming from the
proper thread.
On production systems, it is safe (and a small optimization) to say N.
diff --git a/arch/blackfin/configs/BF518F-EZBRD_defconfig b/arch/blackfin/configs/BF518F-EZBRD_defconfig
index db8d38a12a9..5edcb58d6f7 100644
--- a/arch/blackfin/configs/BF518F-EZBRD_defconfig
+++ b/arch/blackfin/configs/BF518F-EZBRD_defconfig
@@ -115,6 +115,7 @@ CONFIG_DEBUG_DOUBLEFAULT=y
CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y
CONFIG_EARLY_PRINTK=y
CONFIG_CPLB_INFO=y
+CONFIG_BFIN_PSEUDODBG_INSNS=y
CONFIG_CRYPTO=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRC_CCITT=m
diff --git a/arch/blackfin/configs/BF526-EZBRD_defconfig b/arch/blackfin/configs/BF526-EZBRD_defconfig
index 3e50d7857c2..2e549572d4f 100644
--- a/arch/blackfin/configs/BF526-EZBRD_defconfig
+++ b/arch/blackfin/configs/BF526-EZBRD_defconfig
@@ -153,6 +153,7 @@ CONFIG_DEBUG_DOUBLEFAULT=y
CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y
CONFIG_EARLY_PRINTK=y
CONFIG_CPLB_INFO=y
+CONFIG_BFIN_PSEUDODBG_INSNS=y
CONFIG_CRYPTO=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRC_CCITT=m
diff --git a/arch/blackfin/configs/BF527-AD7160-EVAL_defconfig b/arch/blackfin/configs/BF527-AD7160-EVAL_defconfig
index 362f59dd522..ad0881ba30a 100644
--- a/arch/blackfin/configs/BF527-AD7160-EVAL_defconfig
+++ b/arch/blackfin/configs/BF527-AD7160-EVAL_defconfig
@@ -46,7 +46,6 @@ CONFIG_UNIX=y
# CONFIG_WIRELESS is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
# CONFIG_INPUT_MOUSEDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_KEYBOARD is not set
diff --git a/arch/blackfin/configs/BF527-EZKIT-V2_defconfig b/arch/blackfin/configs/BF527-EZKIT-V2_defconfig
index 023ff0df269..95cf2ba9de1 100644
--- a/arch/blackfin/configs/BF527-EZKIT-V2_defconfig
+++ b/arch/blackfin/configs/BF527-EZKIT-V2_defconfig
@@ -183,5 +183,6 @@ CONFIG_DEBUG_DOUBLEFAULT=y
CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y
CONFIG_EARLY_PRINTK=y
CONFIG_CPLB_INFO=y
+CONFIG_BFIN_PSEUDODBG_INSNS=y
CONFIG_CRYPTO=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/blackfin/configs/BF527-EZKIT_defconfig b/arch/blackfin/configs/BF527-EZKIT_defconfig
index 4e5a121b3c5..8be8e33fac5 100644
--- a/arch/blackfin/configs/BF527-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF527-EZKIT_defconfig
@@ -175,5 +175,6 @@ CONFIG_DEBUG_DOUBLEFAULT=y
CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y
CONFIG_EARLY_PRINTK=y
CONFIG_CPLB_INFO=y
+CONFIG_BFIN_PSEUDODBG_INSNS=y
CONFIG_CRYPTO=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/blackfin/configs/BF533-EZKIT_defconfig b/arch/blackfin/configs/BF533-EZKIT_defconfig
index 9f8fc84e4ac..a7eb54bf308 100644
--- a/arch/blackfin/configs/BF533-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF533-EZKIT_defconfig
@@ -108,5 +108,6 @@ CONFIG_DEBUG_DOUBLEFAULT=y
CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y
CONFIG_EARLY_PRINTK=y
CONFIG_CPLB_INFO=y
+CONFIG_BFIN_PSEUDODBG_INSNS=y
CONFIG_CRYPTO=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/blackfin/configs/BF533-STAMP_defconfig b/arch/blackfin/configs/BF533-STAMP_defconfig
index ccc432b722a..0aafde6c8c2 100644
--- a/arch/blackfin/configs/BF533-STAMP_defconfig
+++ b/arch/blackfin/configs/BF533-STAMP_defconfig
@@ -122,5 +122,6 @@ CONFIG_DEBUG_DOUBLEFAULT=y
CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y
CONFIG_EARLY_PRINTK=y
CONFIG_CPLB_INFO=y
+CONFIG_BFIN_PSEUDODBG_INSNS=y
CONFIG_CRYPTO=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/blackfin/configs/BF537-STAMP_defconfig b/arch/blackfin/configs/BF537-STAMP_defconfig
index 566695472a8..c9077fb5813 100644
--- a/arch/blackfin/configs/BF537-STAMP_defconfig
+++ b/arch/blackfin/configs/BF537-STAMP_defconfig
@@ -133,5 +133,6 @@ CONFIG_DEBUG_DOUBLEFAULT=y
CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y
CONFIG_EARLY_PRINTK=y
CONFIG_CPLB_INFO=y
+CONFIG_BFIN_PSEUDODBG_INSNS=y
CONFIG_CRYPTO=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/blackfin/configs/BF538-EZKIT_defconfig b/arch/blackfin/configs/BF538-EZKIT_defconfig
index ac22124ccb6..580bf4296a1 100644
--- a/arch/blackfin/configs/BF538-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF538-EZKIT_defconfig
@@ -70,7 +70,6 @@ CONFIG_MTD_ROM=m
CONFIG_MTD_PHYSMAP=m
CONFIG_MTD_NAND=m
CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_NETDEVICES=y
CONFIG_PHYLIB=y
CONFIG_SMSC_PHY=y
@@ -131,5 +130,6 @@ CONFIG_DEBUG_DOUBLEFAULT=y
CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y
CONFIG_EARLY_PRINTK=y
CONFIG_CPLB_INFO=y
+CONFIG_BFIN_PSEUDODBG_INSNS=y
CONFIG_CRYPTO=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/blackfin/configs/BF548-EZKIT_defconfig b/arch/blackfin/configs/BF548-EZKIT_defconfig
index 944404b6ff0..56151b5dbc4 100644
--- a/arch/blackfin/configs/BF548-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF548-EZKIT_defconfig
@@ -205,5 +205,6 @@ CONFIG_DEBUG_DOUBLEFAULT=y
CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y
CONFIG_EARLY_PRINTK=y
CONFIG_CPLB_INFO=y
+CONFIG_BFIN_PSEUDODBG_INSNS=y
CONFIG_CRYPTO=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/blackfin/configs/BF561-ACVILON_defconfig b/arch/blackfin/configs/BF561-ACVILON_defconfig
index b7c8451f26a..77a27e31d6d 100644
--- a/arch/blackfin/configs/BF561-ACVILON_defconfig
+++ b/arch/blackfin/configs/BF561-ACVILON_defconfig
@@ -63,7 +63,6 @@ CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=2
CONFIG_BLK_DEV_RAM_SIZE=16384
-# CONFIG_MISC_DEVICES is not set
CONFIG_SCSI=y
# CONFIG_SCSI_PROC_FS is not set
CONFIG_BLK_DEV_SD=y
diff --git a/arch/blackfin/configs/BF561-EZKIT-SMP_defconfig b/arch/blackfin/configs/BF561-EZKIT-SMP_defconfig
index 7e67ba31e99..f5ed34e12e0 100644
--- a/arch/blackfin/configs/BF561-EZKIT-SMP_defconfig
+++ b/arch/blackfin/configs/BF561-EZKIT-SMP_defconfig
@@ -109,5 +109,6 @@ CONFIG_DEBUG_DOUBLEFAULT=y
CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y
CONFIG_EARLY_PRINTK=y
CONFIG_CPLB_INFO=y
+CONFIG_BFIN_PSEUDODBG_INSNS=y
CONFIG_CRYPTO=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/blackfin/configs/BF561-EZKIT_defconfig b/arch/blackfin/configs/BF561-EZKIT_defconfig
index 141e5933e1a..1c0a82a1059 100644
--- a/arch/blackfin/configs/BF561-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF561-EZKIT_defconfig
@@ -111,5 +111,6 @@ CONFIG_DEBUG_DOUBLEFAULT=y
CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y
CONFIG_EARLY_PRINTK=y
CONFIG_CPLB_INFO=y
+CONFIG_BFIN_PSEUDODBG_INSNS=y
CONFIG_CRYPTO=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/blackfin/configs/BlackStamp_defconfig b/arch/blackfin/configs/BlackStamp_defconfig
index 97ebe09a737..85014319672 100644
--- a/arch/blackfin/configs/BlackStamp_defconfig
+++ b/arch/blackfin/configs/BlackStamp_defconfig
@@ -58,6 +58,7 @@ CONFIG_MTD_M25P80=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_NBD=y
CONFIG_BLK_DEV_RAM=y
+CONFIG_MISC_DEVICES=y
CONFIG_EEPROM_AT25=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
diff --git a/arch/blackfin/configs/CM-BF527_defconfig b/arch/blackfin/configs/CM-BF527_defconfig
index c2457543e58..dbf750cd2db 100644
--- a/arch/blackfin/configs/CM-BF527_defconfig
+++ b/arch/blackfin/configs/CM-BF527_defconfig
@@ -64,7 +64,6 @@ CONFIG_MTD_ROM=m
CONFIG_MTD_COMPLEX_MAPPINGS=y
CONFIG_MTD_GPIO_ADDR=y
CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
# CONFIG_SCSI_LOWLEVEL is not set
diff --git a/arch/blackfin/configs/CM-BF533_defconfig b/arch/blackfin/configs/CM-BF533_defconfig
index baf1c1573e5..07ffbdae34e 100644
--- a/arch/blackfin/configs/CM-BF533_defconfig
+++ b/arch/blackfin/configs/CM-BF533_defconfig
@@ -44,7 +44,6 @@ CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_RAM=y
CONFIG_MTD_PHYSMAP=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_NETDEVICES=y
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
diff --git a/arch/blackfin/configs/CM-BF548_defconfig b/arch/blackfin/configs/CM-BF548_defconfig
index df267588efe..31d954216c0 100644
--- a/arch/blackfin/configs/CM-BF548_defconfig
+++ b/arch/blackfin/configs/CM-BF548_defconfig
@@ -63,7 +63,6 @@ CONFIG_MTD_RAM=y
CONFIG_MTD_COMPLEX_MAPPINGS=y
CONFIG_MTD_PHYSMAP=y
CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_SCSI=m
CONFIG_BLK_DEV_SD=m
# CONFIG_SCSI_LOWLEVEL is not set
diff --git a/arch/blackfin/configs/DNP5370_defconfig b/arch/blackfin/configs/DNP5370_defconfig
index f50313657f3..b192acfae38 100644
--- a/arch/blackfin/configs/DNP5370_defconfig
+++ b/arch/blackfin/configs/DNP5370_defconfig
@@ -55,7 +55,6 @@ CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_PLATFORM=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_NETDEVICES=y
CONFIG_DAVICOM_PHY=y
CONFIG_NET_ETHERNET=y
diff --git a/arch/blackfin/configs/H8606_defconfig b/arch/blackfin/configs/H8606_defconfig
index 7450127b645..06e9f497fae 100644
--- a/arch/blackfin/configs/H8606_defconfig
+++ b/arch/blackfin/configs/H8606_defconfig
@@ -45,6 +45,7 @@ CONFIG_MTD_COMPLEX_MAPPINGS=y
CONFIG_MTD_M25P80=y
# CONFIG_M25PXX_USE_FAST_READ is not set
CONFIG_BLK_DEV_RAM=y
+CONFIG_MISC_DEVICES=y
CONFIG_EEPROM_AT25=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
diff --git a/arch/blackfin/configs/SRV1_defconfig b/arch/blackfin/configs/SRV1_defconfig
index 853809510ee..12e66cd7cda 100644
--- a/arch/blackfin/configs/SRV1_defconfig
+++ b/arch/blackfin/configs/SRV1_defconfig
@@ -48,6 +48,7 @@ CONFIG_MTD_COMPLEX_MAPPINGS=y
CONFIG_MTD_UCLINUX=y
CONFIG_MTD_NAND=m
CONFIG_BLK_DEV_RAM=y
+CONFIG_MISC_DEVICES=y
CONFIG_EEPROM_AT25=m
CONFIG_NETDEVICES=y
# CONFIG_NETDEV_1000 is not set
diff --git a/arch/blackfin/include/asm/atomic.h b/arch/blackfin/include/asm/atomic.h
index d27c6274247..e4850895716 100644
--- a/arch/blackfin/include/asm/atomic.h
+++ b/arch/blackfin/include/asm/atomic.h
@@ -121,4 +121,6 @@ static inline int atomic_test_mask(int mask, atomic_t *v)
#endif
+#include <asm-generic/atomic64.h>
+
#endif
diff --git a/arch/blackfin/include/asm/bitops.h b/arch/blackfin/include/asm/bitops.h
index 29f4fd88617..8a0fed16058 100644
--- a/arch/blackfin/include/asm/bitops.h
+++ b/arch/blackfin/include/asm/bitops.h
@@ -25,9 +25,7 @@
#include <asm-generic/bitops/const_hweight.h>
#include <asm-generic/bitops/lock.h>
-#include <asm-generic/bitops/ext2-non-atomic.h>
#include <asm-generic/bitops/ext2-atomic.h>
-#include <asm-generic/bitops/minix.h>
#ifndef CONFIG_SMP
#include <linux/irqflags.h>
@@ -114,6 +112,9 @@ static inline int test_and_change_bit(int nr, volatile unsigned long *addr)
#endif /* CONFIG_SMP */
+/* Needs to be after test_bit and friends */
+#include <asm-generic/bitops/le.h>
+
/*
* hweightN: returns the hamming weight (i.e. the number
* of bits set) of a N-bit word
diff --git a/arch/blackfin/include/asm/def_LPBlackfin.h b/arch/blackfin/include/asm/def_LPBlackfin.h
index e3f0f4c4981..7600fe0696a 100644
--- a/arch/blackfin/include/asm/def_LPBlackfin.h
+++ b/arch/blackfin/include/asm/def_LPBlackfin.h
@@ -58,14 +58,26 @@
({ BUG(); 0; }); \
})
#define bfin_write(addr, val) \
-({ \
+do { \
switch (sizeof(*(addr))) { \
case 1: bfin_write8(addr, val); break; \
case 2: bfin_write16(addr, val); break; \
case 4: bfin_write32(addr, val); break; \
default: BUG(); \
} \
-})
+} while (0)
+
+#define bfin_write_or(addr, bits) \
+do { \
+ void *__addr = (void *)(addr); \
+ bfin_write(__addr, bfin_read(__addr) | (bits)); \
+} while (0)
+
+#define bfin_write_and(addr, bits) \
+do { \
+ void *__addr = (void *)(addr); \
+ bfin_write(__addr, bfin_read(__addr) & (bits)); \
+} while (0)
#endif /* __ASSEMBLY__ */
diff --git a/arch/blackfin/include/asm/dpmc.h b/arch/blackfin/include/asm/dpmc.h
index 3047120cfcf..edf2a2ad518 100644
--- a/arch/blackfin/include/asm/dpmc.h
+++ b/arch/blackfin/include/asm/dpmc.h
@@ -125,6 +125,9 @@ void unset_dram_srfs(void);
#define VRPAIR(vlev, freq) (((vlev) << 16) | ((freq) >> 16))
+#ifdef CONFIG_CPU_FREQ
+#define CPUFREQ_CPU 0
+#endif
struct bfin_dpmc_platform_data {
const unsigned int *tuple_tab;
unsigned short tabsize;
diff --git a/arch/blackfin/include/asm/ipipe.h b/arch/blackfin/include/asm/ipipe.h
index 40f94a704c0..9e0cc0e2534 100644
--- a/arch/blackfin/include/asm/ipipe.h
+++ b/arch/blackfin/include/asm/ipipe.h
@@ -34,11 +34,12 @@
#include <asm/bitops.h>
#include <asm/atomic.h>
#include <asm/traps.h>
+#include <asm/bitsperlong.h>
-#define IPIPE_ARCH_STRING "1.12-00"
+#define IPIPE_ARCH_STRING "1.16-01"
#define IPIPE_MAJOR_NUMBER 1
-#define IPIPE_MINOR_NUMBER 12
-#define IPIPE_PATCH_NUMBER 0
+#define IPIPE_MINOR_NUMBER 16
+#define IPIPE_PATCH_NUMBER 1
#ifdef CONFIG_SMP
#error "I-pipe/blackfin: SMP not implemented"
@@ -55,25 +56,19 @@ do { \
#define task_hijacked(p) \
({ \
int __x__ = __ipipe_root_domain_p; \
- __clear_bit(IPIPE_SYNC_FLAG, &ipipe_root_cpudom_var(status)); \
if (__x__) \
- hard_local_irq_enable(); \
+ hard_local_irq_enable(); \
!__x__; \
})
struct ipipe_domain;
struct ipipe_sysinfo {
-
- int ncpus; /* Number of CPUs on board */
- u64 cpufreq; /* CPU frequency (in Hz) */
-
- /* Arch-dependent block */
-
- struct {
- unsigned tmirq; /* Timer tick IRQ */
- u64 tmfreq; /* Timer frequency */
- } archdep;
+ int sys_nr_cpus; /* Number of CPUs on board */
+ int sys_hrtimer_irq; /* hrtimer device IRQ */
+ u64 sys_hrtimer_freq; /* hrtimer device frequency */
+ u64 sys_hrclock_freq; /* hrclock device frequency */
+ u64 sys_cpu_freq; /* CPU frequency (Hz) */
};
#define ipipe_read_tsc(t) \
@@ -115,9 +110,19 @@ void __ipipe_enable_irqdesc(struct ipipe_domain *ipd,
void __ipipe_disable_irqdesc(struct ipipe_domain *ipd,
unsigned irq);
-#define __ipipe_enable_irq(irq) (irq_desc[irq].chip->unmask(irq))
+#define __ipipe_enable_irq(irq) \
+ do { \
+ struct irq_desc *desc = irq_to_desc(irq); \
+ struct irq_chip *chip = get_irq_desc_chip(desc); \
+ chip->irq_unmask(&desc->irq_data); \
+ } while (0)
-#define __ipipe_disable_irq(irq) (irq_desc[irq].chip->mask(irq))
+#define __ipipe_disable_irq(irq) \
+ do { \
+ struct irq_desc *desc = irq_to_desc(irq); \
+ struct irq_chip *chip = get_irq_desc_chip(desc); \
+ chip->irq_mask(&desc->irq_data); \
+ } while (0)
static inline int __ipipe_check_tickdev(const char *devname)
{
@@ -128,12 +133,11 @@ void __ipipe_enable_pipeline(void);
#define __ipipe_hook_critical_ipi(ipd) do { } while (0)
-#define __ipipe_sync_pipeline ___ipipe_sync_pipeline
-void ___ipipe_sync_pipeline(unsigned long syncmask);
+void ___ipipe_sync_pipeline(void);
void __ipipe_handle_irq(unsigned irq, struct pt_regs *regs);
-int __ipipe_get_irq_priority(unsigned irq);
+int __ipipe_get_irq_priority(unsigned int irq);
void __ipipe_serial_debug(const char *fmt, ...);
@@ -152,7 +156,10 @@ static inline unsigned long __ipipe_ffnz(unsigned long ul)
return ffs(ul) - 1;
}
-#define __ipipe_run_irqtail() /* Must be a macro */ \
+#define __ipipe_do_root_xirq(ipd, irq) \
+ ((ipd)->irqs[irq].handler(irq, &__raw_get_cpu_var(__ipipe_tick_regs)))
+
+#define __ipipe_run_irqtail(irq) /* Must be a macro */ \
do { \
unsigned long __pending; \
CSYNC(); \
@@ -164,42 +171,8 @@ static inline unsigned long __ipipe_ffnz(unsigned long ul)
} \
} while (0)
-#define __ipipe_run_isr(ipd, irq) \
- do { \
- if (!__ipipe_pipeline_head_p(ipd)) \
- hard_local_irq_enable(); \
- if (ipd == ipipe_root_domain) { \
- if (unlikely(ipipe_virtual_irq_p(irq))) { \
- irq_enter(); \
- ipd->irqs[irq].handler(irq, ipd->irqs[irq].cookie); \
- irq_exit(); \
- } else \
- ipd->irqs[irq].handler(irq, &__raw_get_cpu_var(__ipipe_tick_regs)); \
- } else { \
- __clear_bit(IPIPE_SYNC_FLAG, &ipipe_cpudom_var(ipd, status)); \
- ipd->irqs[irq].handler(irq, ipd->irqs[irq].cookie); \
- /* Attempt to exit the outer interrupt level before \
- * starting the deferred IRQ processing. */ \
- __ipipe_run_irqtail(); \
- __set_bit(IPIPE_SYNC_FLAG, &ipipe_cpudom_var(ipd, status)); \
- } \
- hard_local_irq_disable(); \
- } while (0)
-
#define __ipipe_syscall_watched_p(p, sc) \
- (((p)->flags & PF_EVNOTIFY) || (unsigned long)sc >= NR_syscalls)
-
-void ipipe_init_irq_threads(void);
-
-int ipipe_start_irq_thread(unsigned irq, struct irq_desc *desc);
-
-#ifdef CONFIG_TICKSOURCE_CORETMR
-#define IRQ_SYSTMR IRQ_CORETMR
-#define IRQ_PRIOTMR IRQ_CORETMR
-#else
-#define IRQ_SYSTMR IRQ_TIMER0
-#define IRQ_PRIOTMR CONFIG_IRQ_TIMER0
-#endif
+ (ipipe_notifier_enabled_p(p) || (unsigned long)sc >= NR_syscalls)
#ifdef CONFIG_BF561
#define bfin_write_TIMER_DISABLE(val) bfin_write_TMRS8_DISABLE(val)
@@ -219,11 +192,11 @@ int ipipe_start_irq_thread(unsigned irq, struct irq_desc *desc);
#define task_hijacked(p) 0
#define ipipe_trap_notify(t, r) 0
+#define __ipipe_root_tick_p(regs) 1
-#define ipipe_init_irq_threads() do { } while (0)
-#define ipipe_start_irq_thread(irq, desc) 0
+#endif /* !CONFIG_IPIPE */
-#ifndef CONFIG_TICKSOURCE_GPTMR0
+#ifdef CONFIG_TICKSOURCE_CORETMR
#define IRQ_SYSTMR IRQ_CORETMR
#define IRQ_PRIOTMR IRQ_CORETMR
#else
@@ -231,10 +204,6 @@ int ipipe_start_irq_thread(unsigned irq, struct irq_desc *desc);
#define IRQ_PRIOTMR CONFIG_IRQ_TIMER0
#endif
-#define __ipipe_root_tick_p(regs) 1
-
-#endif /* !CONFIG_IPIPE */
-
#define ipipe_update_tick_evtdev(evtdev) do { } while (0)
#endif /* !__ASM_BLACKFIN_IPIPE_H */
diff --git a/arch/blackfin/include/asm/ipipe_base.h b/arch/blackfin/include/asm/ipipe_base.h
index 00409201d9e..84a4ffd3674 100644
--- a/arch/blackfin/include/asm/ipipe_base.h
+++ b/arch/blackfin/include/asm/ipipe_base.h
@@ -24,8 +24,10 @@
#ifdef CONFIG_IPIPE
+#include <asm/bitsperlong.h>
+#include <mach/irq.h>
+
#define IPIPE_NR_XIRQS NR_IRQS
-#define IPIPE_IRQ_ISHIFT 5 /* 2^5 for 32bits arch. */
/* Blackfin-specific, per-cpu pipeline status */
#define IPIPE_SYNCDEFER_FLAG 15
@@ -42,11 +44,14 @@
#define IPIPE_EVENT_INIT (IPIPE_FIRST_EVENT + 4)
#define IPIPE_EVENT_EXIT (IPIPE_FIRST_EVENT + 5)
#define IPIPE_EVENT_CLEANUP (IPIPE_FIRST_EVENT + 6)
-#define IPIPE_LAST_EVENT IPIPE_EVENT_CLEANUP
+#define IPIPE_EVENT_RETURN (IPIPE_FIRST_EVENT + 7)
+#define IPIPE_LAST_EVENT IPIPE_EVENT_RETURN
#define IPIPE_NR_EVENTS (IPIPE_LAST_EVENT + 1)
#define IPIPE_TIMER_IRQ IRQ_CORETMR
+#define __IPIPE_FEATURE_SYSINFO_V2 1
+
#ifndef __ASSEMBLY__
extern unsigned long __ipipe_root_status; /* Alias to ipipe_root_cpudom_var(status) */
@@ -63,6 +68,8 @@ void __ipipe_unlock_root(void);
#endif /* !__ASSEMBLY__ */
+#define __IPIPE_FEATURE_SYSINFO_V2 1
+
#endif /* CONFIG_IPIPE */
#endif /* !__ASM_BLACKFIN_IPIPE_BASE_H */
diff --git a/arch/blackfin/include/asm/irqflags.h b/arch/blackfin/include/asm/irqflags.h
index 3365cb97f53..b4bbb75a9e1 100644
--- a/arch/blackfin/include/asm/irqflags.h
+++ b/arch/blackfin/include/asm/irqflags.h
@@ -89,15 +89,33 @@ static inline void __hard_local_irq_restore(unsigned long flags)
#ifdef CONFIG_IPIPE
#include <linux/compiler.h>
-#include <linux/ipipe_base.h>
#include <linux/ipipe_trace.h>
+/*
+ * Way too many inter-deps between low-level headers in this port, so
+ * we redeclare the required bits we cannot pick from
+ * <asm/ipipe_base.h> to prevent circular dependencies.
+ */
+void __ipipe_stall_root(void);
+void __ipipe_unstall_root(void);
+unsigned long __ipipe_test_root(void);
+unsigned long __ipipe_test_and_stall_root(void);
+void __ipipe_restore_root(unsigned long flags);
+
+#ifdef CONFIG_IPIPE_DEBUG_CONTEXT
+struct ipipe_domain;
+extern struct ipipe_domain ipipe_root;
+void ipipe_check_context(struct ipipe_domain *ipd);
+#define __check_irqop_context(ipd) ipipe_check_context(&ipipe_root)
+#else /* !CONFIG_IPIPE_DEBUG_CONTEXT */
+#define __check_irqop_context(ipd) do { } while (0)
+#endif /* !CONFIG_IPIPE_DEBUG_CONTEXT */
/*
* Interrupt pipe interface to linux/irqflags.h.
*/
static inline void arch_local_irq_disable(void)
{
- ipipe_check_context(ipipe_root_domain);
+ __check_irqop_context();
__ipipe_stall_root();
barrier();
}
@@ -105,7 +123,7 @@ static inline void arch_local_irq_disable(void)
static inline void arch_local_irq_enable(void)
{
barrier();
- ipipe_check_context(ipipe_root_domain);
+ __check_irqop_context();
__ipipe_unstall_root();
}
@@ -119,16 +137,21 @@ static inline int arch_irqs_disabled_flags(unsigned long flags)
return flags == bfin_no_irqs;
}
-static inline void arch_local_irq_save_ptr(unsigned long *_flags)
+static inline unsigned long arch_local_irq_save(void)
{
- x = __ipipe_test_and_stall_root() ? bfin_no_irqs : bfin_irq_flags;
+ unsigned long flags;
+
+ __check_irqop_context();
+ flags = __ipipe_test_and_stall_root() ? bfin_no_irqs : bfin_irq_flags;
barrier();
+
+ return flags;
}
-static inline unsigned long arch_local_irq_save(void)
+static inline void arch_local_irq_restore(unsigned long flags)
{
- ipipe_check_context(ipipe_root_domain);
- return __hard_local_irq_save();
+ __check_irqop_context();
+ __ipipe_restore_root(flags == bfin_no_irqs);
}
static inline unsigned long arch_mangle_irq_bits(int virt, unsigned long real)
@@ -192,7 +215,10 @@ static inline void hard_local_irq_restore(unsigned long flags)
# define hard_local_irq_restore(flags) __hard_local_irq_restore(flags)
#endif /* !CONFIG_IPIPE_TRACE_IRQSOFF */
-#else /* CONFIG_IPIPE */
+#define hard_local_irq_save_cond() hard_local_irq_save()
+#define hard_local_irq_restore_cond(flags) hard_local_irq_restore(flags)
+
+#else /* !CONFIG_IPIPE */
/*
* Direct interface to linux/irqflags.h.
@@ -212,7 +238,48 @@ static inline void hard_local_irq_restore(unsigned long flags)
#define hard_local_irq_restore(flags) __hard_local_irq_restore(flags)
#define hard_local_irq_enable() __hard_local_irq_enable()
#define hard_local_irq_disable() __hard_local_irq_disable()
-
+#define hard_local_irq_save_cond() hard_local_save_flags()
+#define hard_local_irq_restore_cond(flags) do { (void)(flags); } while (0)
#endif /* !CONFIG_IPIPE */
+
+#ifdef CONFIG_SMP
+#define hard_local_irq_save_smp() hard_local_irq_save()
+#define hard_local_irq_restore_smp(flags) hard_local_irq_restore(flags)
+#else
+#define hard_local_irq_save_smp() hard_local_save_flags()
+#define hard_local_irq_restore_smp(flags) do { (void)(flags); } while (0)
+#endif
+
+/*
+ * Remap the arch-neutral IRQ state manipulation macros to the
+ * blackfin-specific hard_local_irq_* API.
+ */
+#define local_irq_save_hw(flags) \
+ do { \
+ (flags) = hard_local_irq_save(); \
+ } while (0)
+#define local_irq_restore_hw(flags) \
+ do { \
+ hard_local_irq_restore(flags); \
+ } while (0)
+#define local_irq_disable_hw() \
+ do { \
+ hard_local_irq_disable(); \
+ } while (0)
+#define local_irq_enable_hw() \
+ do { \
+ hard_local_irq_enable(); \
+ } while (0)
+#define local_irq_save_hw_notrace(flags) \
+ do { \
+ (flags) = __hard_local_irq_save(); \
+ } while (0)
+#define local_irq_restore_hw_notrace(flags) \
+ do { \
+ __hard_local_irq_restore(flags); \
+ } while (0)
+
+#define irqs_disabled_hw() hard_irqs_disabled()
+
#endif
diff --git a/arch/blackfin/include/asm/smp.h b/arch/blackfin/include/asm/smp.h
index f5b53796711..af6c0aa79ba 100644
--- a/arch/blackfin/include/asm/smp.h
+++ b/arch/blackfin/include/asm/smp.h
@@ -17,7 +17,12 @@
#define raw_smp_processor_id() blackfin_core_id()
-extern char coreb_trampoline_start, coreb_trampoline_end;
+extern void bfin_relocate_coreb_l1_mem(void);
+
+#if defined(CONFIG_SMP) && defined(CONFIG_ICACHE_FLUSH_L1)
+asmlinkage void blackfin_icache_flush_range_l1(unsigned long *ptr);
+extern unsigned long blackfin_iflush_l1_entry[NR_CPUS];
+#endif
struct corelock_slot {
int lock;
@@ -34,7 +39,7 @@ extern unsigned long dcache_invld_count[NR_CPUS];
void smp_icache_flush_range_others(unsigned long start,
unsigned long end);
#ifdef CONFIG_HOTPLUG_CPU
-void coreb_sleep(u32 sic_iwr0, u32 sic_iwr1, u32 sic_iwr2);
+void coreb_die(void);
void cpu_die(void);
void platform_cpu_die(void);
int __cpu_disable(void);
diff --git a/arch/blackfin/include/asm/system.h b/arch/blackfin/include/asm/system.h
index 19e2c7c3e63..44bd0cced72 100644
--- a/arch/blackfin/include/asm/system.h
+++ b/arch/blackfin/include/asm/system.h
@@ -19,11 +19,11 @@
* Force strict CPU ordering.
*/
#define nop() __asm__ __volatile__ ("nop;\n\t" : : )
-#define mb() __asm__ __volatile__ ("" : : : "memory")
-#define rmb() __asm__ __volatile__ ("" : : : "memory")
-#define wmb() __asm__ __volatile__ ("" : : : "memory")
-#define set_mb(var, value) do { (void) xchg(&var, value); } while (0)
-#define read_barrier_depends() do { } while(0)
+#define smp_mb() mb()
+#define smp_rmb() rmb()
+#define smp_wmb() wmb()
+#define set_mb(var, value) do { var = value; mb(); } while (0)
+#define smp_read_barrier_depends() read_barrier_depends()
#ifdef CONFIG_SMP
asmlinkage unsigned long __raw_xchg_1_asm(volatile void *ptr, unsigned long value);
@@ -37,16 +37,16 @@ asmlinkage unsigned long __raw_cmpxchg_4_asm(volatile void *ptr,
unsigned long new, unsigned long old);
#ifdef __ARCH_SYNC_CORE_DCACHE
-# define smp_mb() do { barrier(); smp_check_barrier(); smp_mark_barrier(); } while (0)
-# define smp_rmb() do { barrier(); smp_check_barrier(); } while (0)
-# define smp_wmb() do { barrier(); smp_mark_barrier(); } while (0)
-#define smp_read_barrier_depends() do { barrier(); smp_check_barrier(); } while (0)
-
+/* Force Core data cache coherence */
+# define mb() do { barrier(); smp_check_barrier(); smp_mark_barrier(); } while (0)
+# define rmb() do { barrier(); smp_check_barrier(); } while (0)
+# define wmb() do { barrier(); smp_mark_barrier(); } while (0)
+# define read_barrier_depends() do { barrier(); smp_check_barrier(); } while (0)
#else
-# define smp_mb() barrier()
-# define smp_rmb() barrier()
-# define smp_wmb() barrier()
-#define smp_read_barrier_depends() barrier()
+# define mb() barrier()
+# define rmb() barrier()
+# define wmb() barrier()
+# define read_barrier_depends() do { } while (0)
#endif
static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
@@ -99,10 +99,10 @@ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
#else /* !CONFIG_SMP */
-#define smp_mb() barrier()
-#define smp_rmb() barrier()
-#define smp_wmb() barrier()
-#define smp_read_barrier_depends() do { } while(0)
+#define mb() barrier()
+#define rmb() barrier()
+#define wmb() barrier()
+#define read_barrier_depends() do { } while (0)
struct __xchg_dummy {
unsigned long a[100];
diff --git a/arch/blackfin/include/asm/traps.h b/arch/blackfin/include/asm/traps.h
index 9fe0da612c0..70c4e511cae 100644
--- a/arch/blackfin/include/asm/traps.h
+++ b/arch/blackfin/include/asm/traps.h
@@ -57,7 +57,7 @@
#define HWC_x3(level) \
"External Memory Addressing Error\n"
#define EXC_0x04(level) \
- "Unimplmented exception occured\n" \
+ "Unimplmented exception occurred\n" \
level " - Maybe you forgot to install a custom exception handler?\n"
#define HWC_x12(level) \
"Performance Monitor Overflow\n"
diff --git a/arch/blackfin/include/asm/unistd.h b/arch/blackfin/include/asm/unistd.h
index 928ae975b87..ff9a9f35d50 100644
--- a/arch/blackfin/include/asm/unistd.h
+++ b/arch/blackfin/include/asm/unistd.h
@@ -393,8 +393,12 @@
#define __NR_fanotify_mark 372
#define __NR_prlimit64 373
#define __NR_cacheflush 374
+#define __NR_name_to_handle_at 375
+#define __NR_open_by_handle_at 376
+#define __NR_clock_adjtime 377
+#define __NR_syncfs 378
-#define __NR_syscall 375
+#define __NR_syscall 379
#define NR_syscalls __NR_syscall
/* Old optional stuff no one actually uses */
diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c
index 1e485dfdc9f..6ce8dce753c 100644
--- a/arch/blackfin/kernel/bfin_dma_5xx.c
+++ b/arch/blackfin/kernel/bfin_dma_5xx.c
@@ -84,6 +84,24 @@ static int __init proc_dma_init(void)
late_initcall(proc_dma_init);
#endif
+static void set_dma_peripheral_map(unsigned int channel, const char *device_id)
+{
+#ifdef CONFIG_BF54x
+ unsigned int per_map;
+
+ switch (channel) {
+ case CH_UART2_RX: per_map = 0xC << 12; break;
+ case CH_UART2_TX: per_map = 0xD << 12; break;
+ case CH_UART3_RX: per_map = 0xE << 12; break;
+ case CH_UART3_TX: per_map = 0xF << 12; break;
+ default: return;
+ }
+
+ if (strncmp(device_id, "BFIN_UART", 9) == 0)
+ dma_ch[channel].regs->peripheral_map = per_map;
+#endif
+}
+
/**
* request_dma - request a DMA channel
*
@@ -111,19 +129,7 @@ int request_dma(unsigned int channel, const char *device_id)
return -EBUSY;
}
-#ifdef CONFIG_BF54x
- if (channel >= CH_UART2_RX && channel <= CH_UART3_TX) {
- unsigned int per_map;
- per_map = dma_ch[channel].regs->peripheral_map & 0xFFF;
- if (strncmp(device_id, "BFIN_UART", 9) == 0)
- dma_ch[channel].regs->peripheral_map = per_map |
- ((channel - CH_UART2_RX + 0xC)<<12);
- else
- dma_ch[channel].regs->peripheral_map = per_map |
- ((channel - CH_UART2_RX + 0x6)<<12);
- }
-#endif
-
+ set_dma_peripheral_map(channel, device_id);
dma_ch[channel].device_id = device_id;
dma_ch[channel].irq = 0;
diff --git a/arch/blackfin/kernel/gptimers.c b/arch/blackfin/kernel/gptimers.c
index cdbe075de1d..8b81dc04488 100644
--- a/arch/blackfin/kernel/gptimers.c
+++ b/arch/blackfin/kernel/gptimers.c
@@ -268,7 +268,7 @@ void disable_gptimers(uint16_t mask)
_disable_gptimers(mask);
for (i = 0; i < MAX_BLACKFIN_GPTIMERS; ++i)
if (mask & (1 << i))
- group_regs[BFIN_TIMER_OCTET(i)]->status |= trun_mask[i];
+ group_regs[BFIN_TIMER_OCTET(i)]->status = trun_mask[i];
SSYNC();
}
EXPORT_SYMBOL(disable_gptimers);
diff --git a/arch/blackfin/kernel/ipipe.c b/arch/blackfin/kernel/ipipe.c
index 3b1da4aff2a..f37019c847c 100644
--- a/arch/blackfin/kernel/ipipe.c
+++ b/arch/blackfin/kernel/ipipe.c
@@ -154,7 +154,7 @@ void __ipipe_handle_irq(unsigned irq, struct pt_regs *regs)
* pending for it.
*/
if (test_bit(IPIPE_AHEAD_FLAG, &this_domain->flags) &&
- ipipe_head_cpudom_var(irqpend_himask) == 0)
+ !__ipipe_ipending_p(ipipe_head_cpudom_ptr()))
goto out;
__ipipe_walk_pipeline(head);
@@ -185,25 +185,21 @@ void __ipipe_disable_irqdesc(struct ipipe_domain *ipd, unsigned irq)
}
EXPORT_SYMBOL(__ipipe_disable_irqdesc);
-int __ipipe_syscall_root(struct pt_regs *regs)
+asmlinkage int __ipipe_syscall_root(struct pt_regs *regs)
{
struct ipipe_percpu_domain_data *p;
- unsigned long flags;
+ void (*hook)(void);
int ret;
+ WARN_ON_ONCE(irqs_disabled_hw());
+
/*
- * We need to run the IRQ tail hook whenever we don't
- * propagate a syscall to higher domains, because we know that
- * important operations might be pending there (e.g. Xenomai
- * deferred rescheduling).
+ * We need to run the IRQ tail hook each time we intercept a
+ * syscall, because we know that important operations might be
+ * pending there (e.g. Xenomai deferred rescheduling).
*/
-
- if (regs->orig_p0 < NR_syscalls) {
- void (*hook)(void) = (void (*)(void))__ipipe_irq_tail_hook;
- hook();
- if ((current->flags & PF_EVNOTIFY) == 0)
- return 0;
- }
+ hook = (__typeof__(hook))__ipipe_irq_tail_hook;
+ hook();
/*
* This routine either returns:
@@ -214,51 +210,47 @@ int __ipipe_syscall_root(struct pt_regs *regs)
* tail work has to be performed (for handling signals etc).
*/
- if (!__ipipe_event_monitored_p(IPIPE_EVENT_SYSCALL))
+ if (!__ipipe_syscall_watched_p(current, regs->orig_p0) ||
+ !__ipipe_event_monitored_p(IPIPE_EVENT_SYSCALL))
return 0;
ret = __ipipe_dispatch_event(IPIPE_EVENT_SYSCALL, regs);
- flags = hard_local_irq_save();
+ hard_local_irq_disable();
- if (!__ipipe_root_domain_p) {
- hard_local_irq_restore(flags);
- return 1;
+ /*
+ * This is the end of the syscall path, so we may
+ * safely assume a valid Linux task stack here.
+ */
+ if (current->ipipe_flags & PF_EVTRET) {
+ current->ipipe_flags &= ~PF_EVTRET;
+ __ipipe_dispatch_event(IPIPE_EVENT_RETURN, regs);
}
- p = ipipe_root_cpudom_ptr();
- if ((p->irqpend_himask & IPIPE_IRQMASK_VIRT) != 0)
- __ipipe_sync_pipeline(IPIPE_IRQMASK_VIRT);
+ if (!__ipipe_root_domain_p)
+ ret = -1;
+ else {
+ p = ipipe_root_cpudom_ptr();
+ if (__ipipe_ipending_p(p))
+ __ipipe_sync_pipeline();
+ }
- hard_local_irq_restore(flags);
+ hard_local_irq_enable();
return -ret;
}
-unsigned long ipipe_critical_enter(void (*syncfn) (void))
-{
- unsigned long flags;
-
- flags = hard_local_irq_save();
-
- return flags;
-}
-
-void ipipe_critical_exit(unsigned long flags)
-{
- hard_local_irq_restore(flags);
-}
-
static void __ipipe_no_irqtail(void)
{
}
int ipipe_get_sysinfo(struct ipipe_sysinfo *info)
{
- info->ncpus = num_online_cpus();
- info->cpufreq = ipipe_cpu_freq();
- info->archdep.tmirq = IPIPE_TIMER_IRQ;
- info->archdep.tmfreq = info->cpufreq;
+ info->sys_nr_cpus = num_online_cpus();
+ info->sys_cpu_freq = ipipe_cpu_freq();
+ info->sys_hrtimer_irq = IPIPE_TIMER_IRQ;
+ info->sys_hrtimer_freq = __ipipe_core_clock;
+ info->sys_hrclock_freq = __ipipe_core_clock;
return 0;
}
@@ -289,6 +281,7 @@ int ipipe_trigger_irq(unsigned irq)
asmlinkage void __ipipe_sync_root(void)
{
void (*irq_tail_hook)(void) = (void (*)(void))__ipipe_irq_tail_hook;
+ struct ipipe_percpu_domain_data *p;
unsigned long flags;
BUG_ON(irqs_disabled());
@@ -300,19 +293,20 @@ asmlinkage void __ipipe_sync_root(void)
clear_thread_flag(TIF_IRQ_SYNC);
- if (ipipe_root_cpudom_var(irqpend_himask) != 0)
- __ipipe_sync_pipeline(IPIPE_IRQMASK_ANY);
+ p = ipipe_root_cpudom_ptr();
+ if (__ipipe_ipending_p(p))
+ __ipipe_sync_pipeline();
hard_local_irq_restore(flags);
}
-void ___ipipe_sync_pipeline(unsigned long syncmask)
+void ___ipipe_sync_pipeline(void)
{
if (__ipipe_root_domain_p &&
test_bit(IPIPE_SYNCDEFER_FLAG, &ipipe_root_cpudom_var(status)))
return;
- __ipipe_sync_stage(syncmask);
+ __ipipe_sync_stage();
}
void __ipipe_disable_root_irqs_hw(void)
diff --git a/arch/blackfin/kernel/irqchip.c b/arch/blackfin/kernel/irqchip.c
index 64cff54a8a5..1696d34f51c 100644
--- a/arch/blackfin/kernel/irqchip.c
+++ b/arch/blackfin/kernel/irqchip.c
@@ -39,21 +39,23 @@ int show_interrupts(struct seq_file *p, void *v)
unsigned long flags;
if (i < NR_IRQS) {
- raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
- action = irq_desc[i].action;
+ struct irq_desc *desc = irq_to_desc(i);
+
+ raw_spin_lock_irqsave(&desc->lock, flags);
+ action = desc->action;
if (!action)
goto skip;
seq_printf(p, "%3d: ", i);
for_each_online_cpu(j)
seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
- seq_printf(p, " %8s", irq_desc[i].chip->name);
+ seq_printf(p, " %8s", irq_desc_get_chip(desc)->name);
seq_printf(p, " %s", action->name);
for (action = action->next; action; action = action->next)
seq_printf(p, " %s", action->name);
seq_putc(p, '\n');
skip:
- raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
+ raw_spin_unlock_irqrestore(&desc->lock, flags);
} else if (i == NR_IRQS) {
seq_printf(p, "NMI: ");
for_each_online_cpu(j)
diff --git a/arch/blackfin/kernel/kgdb.c b/arch/blackfin/kernel/kgdb.c
index eb92592fd80..9b80b152435 100644
--- a/arch/blackfin/kernel/kgdb.c
+++ b/arch/blackfin/kernel/kgdb.c
@@ -181,7 +181,7 @@ static int bfin_set_hw_break(unsigned long addr, int len, enum kgdb_bptype type)
return -ENOSPC;
}
- /* Becasue hardware data watchpoint impelemented in current
+ /* Because hardware data watchpoint impelemented in current
* Blackfin can not trigger an exception event as the hardware
* instrction watchpoint does, we ignaore all data watch point here.
* They can be turned on easily after future blackfin design
@@ -422,11 +422,7 @@ int kgdb_arch_handle_exception(int vector, int signo,
struct kgdb_arch arch_kgdb_ops = {
.gdb_bpt_instr = {0xa1},
-#ifdef CONFIG_SMP
- .flags = KGDB_HW_BREAKPOINT|KGDB_THR_PROC_SWAP,
-#else
.flags = KGDB_HW_BREAKPOINT,
-#endif
.set_hw_breakpoint = bfin_set_hw_break,
.remove_hw_breakpoint = bfin_remove_hw_break,
.disable_hw_break = bfin_disable_hw_debug,
diff --git a/arch/blackfin/kernel/module.c b/arch/blackfin/kernel/module.c
index a6dfa6b71e6..35e350cad9d 100644
--- a/arch/blackfin/kernel/module.c
+++ b/arch/blackfin/kernel/module.c
@@ -4,7 +4,7 @@
* Licensed under the GPL-2 or later
*/
-#define pr_fmt(fmt) "module %s: " fmt
+#define pr_fmt(fmt) "module %s: " fmt, mod->name
#include <linux/moduleloader.h>
#include <linux/elf.h>
@@ -57,8 +57,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l1_inst_sram_alloc(s->sh_size);
mod->arch.text_l1 = dest;
if (dest == NULL) {
- pr_err("L1 inst memory allocation failed\n",
- mod->name);
+ pr_err("L1 inst memory allocation failed\n");
return -1;
}
dma_memcpy(dest, (void *)s->sh_addr, s->sh_size);
@@ -70,8 +69,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l1_data_sram_alloc(s->sh_size);
mod->arch.data_a_l1 = dest;
if (dest == NULL) {
- pr_err("L1 data memory allocation failed\n",
- mod->name);
+ pr_err("L1 data memory allocation failed\n");
return -1;
}
memcpy(dest, (void *)s->sh_addr, s->sh_size);
@@ -83,8 +81,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l1_data_sram_zalloc(s->sh_size);
mod->arch.bss_a_l1 = dest;
if (dest == NULL) {
- pr_err("L1 data memory allocation failed\n",
- mod->name);
+ pr_err("L1 data memory allocation failed\n");
return -1;
}
@@ -93,8 +90,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l1_data_B_sram_alloc(s->sh_size);
mod->arch.data_b_l1 = dest;
if (dest == NULL) {
- pr_err("L1 data memory allocation failed\n",
- mod->name);
+ pr_err("L1 data memory allocation failed\n");
return -1;
}
memcpy(dest, (void *)s->sh_addr, s->sh_size);
@@ -104,8 +100,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l1_data_B_sram_alloc(s->sh_size);
mod->arch.bss_b_l1 = dest;
if (dest == NULL) {
- pr_err("L1 data memory allocation failed\n",
- mod->name);
+ pr_err("L1 data memory allocation failed\n");
return -1;
}
memset(dest, 0, s->sh_size);
@@ -117,8 +112,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l2_sram_alloc(s->sh_size);
mod->arch.text_l2 = dest;
if (dest == NULL) {
- pr_err("L2 SRAM allocation failed\n",
- mod->name);
+ pr_err("L2 SRAM allocation failed\n");
return -1;
}
memcpy(dest, (void *)s->sh_addr, s->sh_size);
@@ -130,8 +124,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l2_sram_alloc(s->sh_size);
mod->arch.data_l2 = dest;
if (dest == NULL) {
- pr_err("L2 SRAM allocation failed\n",
- mod->name);
+ pr_err("L2 SRAM allocation failed\n");
return -1;
}
memcpy(dest, (void *)s->sh_addr, s->sh_size);
@@ -143,8 +136,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l2_sram_zalloc(s->sh_size);
mod->arch.bss_l2 = dest;
if (dest == NULL) {
- pr_err("L2 SRAM allocation failed\n",
- mod->name);
+ pr_err("L2 SRAM allocation failed\n");
return -1;
}
@@ -160,9 +152,9 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
int
apply_relocate(Elf_Shdr * sechdrs, const char *strtab,
- unsigned int symindex, unsigned int relsec, struct module *me)
+ unsigned int symindex, unsigned int relsec, struct module *mod)
{
- pr_err(".rel unsupported\n", me->name);
+ pr_err(".rel unsupported\n");
return -ENOEXEC;
}
@@ -186,7 +178,7 @@ apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
Elf32_Sym *sym;
unsigned long location, value, size;
- pr_debug("applying relocate section %u to %u\n", mod->name,
+ pr_debug("applying relocate section %u to %u\n",
relsec, sechdrs[relsec].sh_info);
for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
@@ -203,14 +195,14 @@ apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
#ifdef CONFIG_SMP
if (location >= COREB_L1_DATA_A_START) {
- pr_err("cannot relocate in L1: %u (SMP kernel)",
- mod->name, ELF32_R_TYPE(rel[i].r_info));
+ pr_err("cannot relocate in L1: %u (SMP kernel)\n",
+ ELF32_R_TYPE(rel[i].r_info));
return -ENOEXEC;
}
#endif
pr_debug("location is %lx, value is %lx type is %d\n",
- mod->name, location, value, ELF32_R_TYPE(rel[i].r_info));
+ location, value, ELF32_R_TYPE(rel[i].r_info));
switch (ELF32_R_TYPE(rel[i].r_info)) {
@@ -230,11 +222,11 @@ apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
case R_BFIN_PCREL12_JUMP_S:
case R_BFIN_PCREL10:
pr_err("unsupported relocation: %u (no -mlong-calls?)\n",
- mod->name, ELF32_R_TYPE(rel[i].r_info));
+ ELF32_R_TYPE(rel[i].r_info));
return -ENOEXEC;
default:
- pr_err("unknown relocation: %u\n", mod->name,
+ pr_err("unknown relocation: %u\n",
ELF32_R_TYPE(rel[i].r_info));
return -ENOEXEC;
}
@@ -251,8 +243,7 @@ apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
isram_memcpy((void *)location, &value, size);
break;
default:
- pr_err("invalid relocation for %#lx\n",
- mod->name, location);
+ pr_err("invalid relocation for %#lx\n", location);
return -ENOEXEC;
}
}
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index ac71dc15cbd..805c6132c77 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -215,11 +215,48 @@ void __init bfin_relocate_l1_mem(void)
early_dma_memcpy_done();
+#if defined(CONFIG_SMP) && defined(CONFIG_ICACHE_FLUSH_L1)
+ blackfin_iflush_l1_entry[0] = (unsigned long)blackfin_icache_flush_range_l1;
+#endif
+
/* if necessary, copy L2 text/data to L2 SRAM */
if (L2_LENGTH && l2_len)
memcpy(_stext_l2, _l2_lma, l2_len);
}
+#ifdef CONFIG_SMP
+void __init bfin_relocate_coreb_l1_mem(void)
+{
+ unsigned long text_l1_len = (unsigned long)_text_l1_len;
+ unsigned long data_l1_len = (unsigned long)_data_l1_len;
+ unsigned long data_b_l1_len = (unsigned long)_data_b_l1_len;
+
+ blackfin_dma_early_init();
+
+ /* if necessary, copy L1 text to L1 instruction SRAM */
+ if (L1_CODE_LENGTH && text_l1_len)
+ early_dma_memcpy((void *)COREB_L1_CODE_START, _text_l1_lma,
+ text_l1_len);
+
+ /* if necessary, copy L1 data to L1 data bank A SRAM */
+ if (L1_DATA_A_LENGTH && data_l1_len)
+ early_dma_memcpy((void *)COREB_L1_DATA_A_START, _data_l1_lma,
+ data_l1_len);
+
+ /* if necessary, copy L1 data B to L1 data bank B SRAM */
+ if (L1_DATA_B_LENGTH && data_b_l1_len)
+ early_dma_memcpy((void *)COREB_L1_DATA_B_START, _data_b_l1_lma,
+ data_b_l1_len);
+
+ early_dma_memcpy_done();
+
+#ifdef CONFIG_ICACHE_FLUSH_L1
+ blackfin_iflush_l1_entry[1] = (unsigned long)blackfin_icache_flush_range_l1 -
+ (unsigned long)_stext_l1 + COREB_L1_CODE_START;
+#endif
+}
+#endif
+
#ifdef CONFIG_ROMKERNEL
void __init bfin_relocate_xip_data(void)
{
diff --git a/arch/blackfin/kernel/time-ts.c b/arch/blackfin/kernel/time-ts.c
index 8c9a43daf80..cdb4beb6bc8 100644
--- a/arch/blackfin/kernel/time-ts.c
+++ b/arch/blackfin/kernel/time-ts.c
@@ -206,8 +206,14 @@ irqreturn_t bfin_gptmr0_interrupt(int irq, void *dev_id)
{
struct clock_event_device *evt = dev_id;
smp_mb();
- evt->event_handler(evt);
+ /*
+ * We want to ACK before we handle so that we can handle smaller timer
+ * intervals. This way if the timer expires again while we're handling
+ * things, we're more likely to see that 2nd int rather than swallowing
+ * it by ACKing the int at the end of this handler.
+ */
bfin_gptmr0_ack();
+ evt->event_handler(evt);
return IRQ_HANDLED;
}
diff --git a/arch/blackfin/kernel/trace.c b/arch/blackfin/kernel/trace.c
index 05b550891ce..050db44fe91 100644
--- a/arch/blackfin/kernel/trace.c
+++ b/arch/blackfin/kernel/trace.c
@@ -912,10 +912,11 @@ void show_regs(struct pt_regs *fp)
/* if no interrupts are going off, don't print this out */
if (fp->ipend & ~0x3F) {
for (i = 0; i < (NR_IRQS - 1); i++) {
+ struct irq_desc *desc = irq_to_desc(i);
if (!in_atomic)
- raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
+ raw_spin_lock_irqsave(&desc->lock, flags);
- action = irq_desc[i].action;
+ action = desc->action;
if (!action)
goto unlock;
@@ -928,7 +929,7 @@ void show_regs(struct pt_regs *fp)
pr_cont("\n");
unlock:
if (!in_atomic)
- raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
+ raw_spin_unlock_irqrestore(&desc->lock, flags);
}
}
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 59c1df75e4d..655f25d139a 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -98,7 +98,7 @@ asmlinkage notrace void trap_c(struct pt_regs *fp)
/* send the appropriate signal to the user program */
switch (trapnr) {
- /* This table works in conjuction with the one in ./mach-common/entry.S
+ /* This table works in conjunction with the one in ./mach-common/entry.S
* Some exceptions are handled there (in assembly, in exception space)
* Some are handled here, (in C, in interrupt space)
* Some, like CPLB, are handled in both, where the normal path is
diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S
index c40d07f708e..854fa49f1c3 100644
--- a/arch/blackfin/kernel/vmlinux.lds.S
+++ b/arch/blackfin/kernel/vmlinux.lds.S
@@ -136,7 +136,7 @@ SECTIONS
. = ALIGN(16);
INIT_DATA_SECTION(16)
- PERCPU(32, 4)
+ PERCPU(32, PAGE_SIZE)
.exit.data :
{
@@ -176,6 +176,7 @@ SECTIONS
{
. = ALIGN(4);
__stext_l1 = .;
+ *(.l1.text.head)
*(.l1.text)
#ifdef CONFIG_SCHEDULE_L1
SCHED_TEXT
diff --git a/arch/blackfin/lib/ins.S b/arch/blackfin/lib/ins.S
index 3edbd8db659..79caccea85c 100644
--- a/arch/blackfin/lib/ins.S
+++ b/arch/blackfin/lib/ins.S
@@ -67,7 +67,7 @@
* - DMA version, which do not suffer from this issue. DMA versions have
* different name (prefixed by dma_ ), and are located in
* ../kernel/bfin_dma_5xx.c
- * Using the dma related functions are recommended for transfering large
+ * Using the dma related functions are recommended for transferring large
* buffers in/out of FIFOs.
*/
diff --git a/arch/blackfin/lib/memmove.S b/arch/blackfin/lib/memmove.S
index 80c240acac6..4eca566237a 100644
--- a/arch/blackfin/lib/memmove.S
+++ b/arch/blackfin/lib/memmove.S
@@ -60,7 +60,7 @@ ENTRY(_memmove)
[P0++] = R1;
CC = P2 == 0; /* any remaining bytes? */
- P3 = I0; /* Ammend P3 to updated ptr. */
+ P3 = I0; /* Amend P3 to updated ptr. */
IF !CC JUMP .Lbytes;
P3 = I1;
RTS;
diff --git a/arch/blackfin/mach-bf518/include/mach/defBF512.h b/arch/blackfin/mach-bf518/include/mach/defBF512.h
index 27285823fb2..cb1172f5075 100644
--- a/arch/blackfin/mach-bf518/include/mach/defBF512.h
+++ b/arch/blackfin/mach-bf518/include/mach/defBF512.h
@@ -1201,25 +1201,6 @@
#define PGTE_PPI 0x0000 /* Enable PPI D15:13 */
#define PGTE_SPORT 0x0800 /* Enable DT1PRI/TFS1/TSCLK1 */
-
-/* ****************** HANDSHAKE DMA (HDMA) MASKS *********************/
-/* HDMAx_CTL Masks */
-#define HMDMAEN 0x0001 /* Enable Handshake DMA 0/1 */
-#define REP 0x0002 /* HDMA Request Polarity */
-#define UTE 0x0004 /* Urgency Threshold Enable */
-#define OIE 0x0010 /* Overflow Interrupt Enable */
-#define BDIE 0x0020 /* Block Done Interrupt Enable */
-#define MBDI 0x0040 /* Mask Block Done IRQ If Pending ECNT */
-#define DRQ 0x0300 /* HDMA Request Type */
-#define DRQ_NONE 0x0000 /* No Request */
-#define DRQ_SINGLE 0x0100 /* Channels Request Single */
-#define DRQ_MULTI 0x0200 /* Channels Request Multi (Default) */
-#define DRQ_URGENT 0x0300 /* Channels Request Multi Urgent */
-#define RBC 0x1000 /* Reload BCNT With IBCNT */
-#define PS 0x2000 /* HDMA Pin Status */
-#define OI 0x4000 /* Overflow Interrupt Generated */
-#define BDI 0x8000 /* Block Done Interrupt Generated */
-
/* entry addresses of the user-callable Boot ROM functions */
#define _BOOTROM_RESET 0xEF000000
diff --git a/arch/blackfin/mach-bf527/include/mach/defBF522.h b/arch/blackfin/mach-bf527/include/mach/defBF522.h
index 89f5420ee6c..84ef11e5264 100644
--- a/arch/blackfin/mach-bf527/include/mach/defBF522.h
+++ b/arch/blackfin/mach-bf527/include/mach/defBF522.h
@@ -1204,25 +1204,6 @@
#define PGTE_PPI 0x0000 /* Enable PPI D15:13 */
#define PGTE_SPORT 0x0800 /* Enable DT1PRI/TFS1/TSCLK1 */
-
-/* ****************** HANDSHAKE DMA (HDMA) MASKS *********************/
-/* HDMAx_CTL Masks */
-#define HMDMAEN 0x0001 /* Enable Handshake DMA 0/1 */
-#define REP 0x0002 /* HDMA Request Polarity */
-#define UTE 0x0004 /* Urgency Threshold Enable */
-#define OIE 0x0010 /* Overflow Interrupt Enable */
-#define BDIE 0x0020 /* Block Done Interrupt Enable */
-#define MBDI 0x0040 /* Mask Block Done IRQ If Pending ECNT */
-#define DRQ 0x0300 /* HDMA Request Type */
-#define DRQ_NONE 0x0000 /* No Request */
-#define DRQ_SINGLE 0x0100 /* Channels Request Single */
-#define DRQ_MULTI 0x0200 /* Channels Request Multi (Default) */
-#define DRQ_URGENT 0x0300 /* Channels Request Multi Urgent */
-#define RBC 0x1000 /* Reload BCNT With IBCNT */
-#define PS 0x2000 /* HDMA Pin Status */
-#define OI 0x4000 /* Overflow Interrupt Generated */
-#define BDI 0x8000 /* Block Done Interrupt Generated */
-
/* entry addresses of the user-callable Boot ROM functions */
#define _BOOTROM_RESET 0xEF000000
diff --git a/arch/blackfin/mach-bf533/boards/ip0x.c b/arch/blackfin/mach-bf533/boards/ip0x.c
index f869a371148..a377d8afea0 100644
--- a/arch/blackfin/mach-bf533/boards/ip0x.c
+++ b/arch/blackfin/mach-bf533/boards/ip0x.c
@@ -289,8 +289,6 @@ static struct platform_device *ip0x_devices[] __initdata = {
static int __init ip0x_init(void)
{
- int i;
-
printk(KERN_INFO "%s(): registering device resources\n", __func__);
platform_add_devices(ip0x_devices, ARRAY_SIZE(ip0x_devices));
diff --git a/arch/blackfin/mach-bf537/boards/cm_bf537e.c b/arch/blackfin/mach-bf537/boards/cm_bf537e.c
index 2c776e188a9..d582b810e7a 100644
--- a/arch/blackfin/mach-bf537/boards/cm_bf537e.c
+++ b/arch/blackfin/mach-bf537/boards/cm_bf537e.c
@@ -775,7 +775,7 @@ static int __init cm_bf537e_init(void)
#endif
#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
- irq_desc[PATA_INT].status |= IRQ_NOAUTOEN;
+ irq_set_status_flags(PATA_INT, IRQ_NOAUTOEN);
#endif
return 0;
}
diff --git a/arch/blackfin/mach-bf537/boards/cm_bf537u.c b/arch/blackfin/mach-bf537/boards/cm_bf537u.c
index 085661175ec..cbb8098604c 100644
--- a/arch/blackfin/mach-bf537/boards/cm_bf537u.c
+++ b/arch/blackfin/mach-bf537/boards/cm_bf537u.c
@@ -740,7 +740,7 @@ static int __init cm_bf537u_init(void)
#endif
#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
- irq_desc[PATA_INT].status |= IRQ_NOAUTOEN;
+ irq_set_status_flags(PATA_INT, IRQ_NOAUTOEN);
#endif
return 0;
}
diff --git a/arch/blackfin/mach-bf537/boards/dnp5370.c b/arch/blackfin/mach-bf537/boards/dnp5370.c
index e1e9ea02ad8..6b4ff4605bf 100644
--- a/arch/blackfin/mach-bf537/boards/dnp5370.c
+++ b/arch/blackfin/mach-bf537/boards/dnp5370.c
@@ -128,30 +128,11 @@ static struct platform_device asmb_flash_device = {
#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
-#define MMC_SPI_CARD_DETECT_INT IRQ_PF5
-
-static int bfin_mmc_spi_init(struct device *dev,
- irqreturn_t (*detect_int)(int, void *), void *data)
-{
- return request_irq(MMC_SPI_CARD_DETECT_INT, detect_int,
- IRQF_TRIGGER_FALLING, "mmc-spi-detect", data);
-}
-
-static void bfin_mmc_spi_exit(struct device *dev, void *data)
-{
- free_irq(MMC_SPI_CARD_DETECT_INT, data);
-}
-
static struct bfin5xx_spi_chip mmc_spi_chip_info = {
.enable_dma = 0, /* use no dma transfer with this chip*/
.bits_per_word = 8,
};
-static struct mmc_spi_platform_data bfin_mmc_spi_pdata = {
- .init = bfin_mmc_spi_init,
- .exit = bfin_mmc_spi_exit,
- .detect_delay = 100, /* msecs */
-};
#endif
#if defined(CONFIG_MTD_DATAFLASH) || defined(CONFIG_MTD_DATAFLASH_MODULE)
@@ -192,7 +173,6 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
.max_speed_hz = 20000000,
.bus_num = 0,
.chip_select = 1,
- .platform_data = &bfin_mmc_spi_pdata,
.controller_data = &mmc_spi_chip_info,
.mode = SPI_MODE_3,
},
diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index 2c69785a7bb..3fa335405b3 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -2530,7 +2530,7 @@ static struct resource bfin_pata_resources[] = {
static struct pata_platform_info bfin_pata_platform_data = {
.ioport_shift = 0,
};
-/* CompactFlash Storage Card Memory Mapped Adressing
+/* CompactFlash Storage Card Memory Mapped Addressing
* /REG = A11 = 1
*/
static struct resource bfin_pata_resources[] = {
diff --git a/arch/blackfin/mach-bf537/boards/tcm_bf537.c b/arch/blackfin/mach-bf537/boards/tcm_bf537.c
index 0761b201abc..164a7e02c02 100644
--- a/arch/blackfin/mach-bf537/boards/tcm_bf537.c
+++ b/arch/blackfin/mach-bf537/boards/tcm_bf537.c
@@ -742,7 +742,7 @@ static int __init tcm_bf537_init(void)
#endif
#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
- irq_desc[PATA_INT].status |= IRQ_NOAUTOEN;
+ irq_set_status_flags(PATA_INT, IRQ_NOAUTOEN);
#endif
return 0;
}
diff --git a/arch/blackfin/mach-bf537/include/mach/defBF534.h b/arch/blackfin/mach-bf537/include/mach/defBF534.h
index 725bb35f3aa..4a031dde173 100644
--- a/arch/blackfin/mach-bf537/include/mach/defBF534.h
+++ b/arch/blackfin/mach-bf537/include/mach/defBF534.h
@@ -1520,24 +1520,6 @@
#define PGTE_PPI 0x0000 /* Enable PPI D15:13 */
#define PGTE_SPORT 0x0800 /* Enable DT1PRI/TFS1/TSCLK1 */
-/* ****************** HANDSHAKE DMA (HDMA) MASKS *********************/
-/* HDMAx_CTL Masks */
-#define HMDMAEN 0x0001 /* Enable Handshake DMA 0/1 */
-#define REP 0x0002 /* HDMA Request Polarity */
-#define UTE 0x0004 /* Urgency Threshold Enable */
-#define OIE 0x0010 /* Overflow Interrupt Enable */
-#define BDIE 0x0020 /* Block Done Interrupt Enable */
-#define MBDI 0x0040 /* Mask Block Done IRQ If Pending ECNT */
-#define DRQ 0x0300 /* HDMA Request Type */
-#define DRQ_NONE 0x0000 /* No Request */
-#define DRQ_SINGLE 0x0100 /* Channels Request Single */
-#define DRQ_MULTI 0x0200 /* Channels Request Multi (Default) */
-#define DRQ_URGENT 0x0300 /* Channels Request Multi Urgent */
-#define RBC 0x1000 /* Reload BCNT With IBCNT */
-#define PS 0x2000 /* HDMA Pin Status */
-#define OI 0x4000 /* Overflow Interrupt Generated */
-#define BDI 0x8000 /* Block Done Interrupt Generated */
-
/* entry addresses of the user-callable Boot ROM functions */
#define _BOOTROM_RESET 0xEF000000
diff --git a/arch/blackfin/mach-bf548/Kconfig b/arch/blackfin/mach-bf548/Kconfig
index 70189a0d1a1..94acb586832 100644
--- a/arch/blackfin/mach-bf548/Kconfig
+++ b/arch/blackfin/mach-bf548/Kconfig
@@ -42,6 +42,65 @@ config BF548_ATAPI_ALTERNATIVE_PORT
async address or GPIO port F and G. Select y to route it
to GPIO.
+choice
+ prompt "UART2 DMA channel selection"
+ depends on SERIAL_BFIN_UART2
+ default UART2_DMA_RX_ON_DMA18
+ help
+ UART2 DMA channel selection
+ RX -> DMA18
+ TX -> DMA19
+ or
+ RX -> DMA13
+ TX -> DMA14
+
+config UART2_DMA_RX_ON_DMA18
+ bool "UART2 DMA RX -> DMA18 TX -> DMA19"
+ help
+ UART2 DMA channel assignment
+ RX -> DMA18
+ TX -> DMA19
+ use SPORT2 default DMA channel
+
+config UART2_DMA_RX_ON_DMA13
+ bool "UART2 DMA RX -> DMA13 TX -> DMA14"
+ help
+ UART2 DMA channel assignment
+ RX -> DMA13
+ TX -> DMA14
+ use EPPI1 EPPI2 default DMA channel
+endchoice
+
+choice
+ prompt "UART3 DMA channel selection"
+ depends on SERIAL_BFIN_UART3
+ default UART3_DMA_RX_ON_DMA20
+ help
+ UART3 DMA channel selection
+ RX -> DMA20
+ TX -> DMA21
+ or
+ RX -> DMA15
+ TX -> DMA16
+
+config UART3_DMA_RX_ON_DMA20
+ bool "UART3 DMA RX -> DMA20 TX -> DMA21"
+ help
+ UART3 DMA channel assignment
+ RX -> DMA20
+ TX -> DMA21
+ use SPORT3 default DMA channel
+
+config UART3_DMA_RX_ON_DMA15
+ bool "UART3 DMA RX -> DMA15 TX -> DMA16"
+ help
+ UART3 DMA channel assignment
+ RX -> DMA15
+ TX -> DMA16
+ use PIXC default DMA channel
+
+endchoice
+
comment "Interrupt Priority Assignment"
menu "Priority"
diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c
index ce5a2bb147d..93e19a54a88 100644
--- a/arch/blackfin/mach-bf548/boards/ezkit.c
+++ b/arch/blackfin/mach-bf548/boards/ezkit.c
@@ -778,11 +778,12 @@ static struct platform_device bfin_sport3_uart_device = {
#endif
#if defined(CONFIG_CAN_BFIN) || defined(CONFIG_CAN_BFIN_MODULE)
-static unsigned short bfin_can_peripherals[] = {
+
+static unsigned short bfin_can0_peripherals[] = {
P_CAN0_RX, P_CAN0_TX, 0
};
-static struct resource bfin_can_resources[] = {
+static struct resource bfin_can0_resources[] = {
{
.start = 0xFFC02A00,
.end = 0xFFC02FFF,
@@ -805,14 +806,53 @@ static struct resource bfin_can_resources[] = {
},
};
-static struct platform_device bfin_can_device = {
+static struct platform_device bfin_can0_device = {
.name = "bfin_can",
- .num_resources = ARRAY_SIZE(bfin_can_resources),
- .resource = bfin_can_resources,
+ .id = 0,
+ .num_resources = ARRAY_SIZE(bfin_can0_resources),
+ .resource = bfin_can0_resources,
.dev = {
- .platform_data = &bfin_can_peripherals, /* Passed to driver */
+ .platform_data = &bfin_can0_peripherals, /* Passed to driver */
},
};
+
+static unsigned short bfin_can1_peripherals[] = {
+ P_CAN1_RX, P_CAN1_TX, 0
+};
+
+static struct resource bfin_can1_resources[] = {
+ {
+ .start = 0xFFC03200,
+ .end = 0xFFC037FF,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IRQ_CAN1_RX,
+ .end = IRQ_CAN1_RX,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = IRQ_CAN1_TX,
+ .end = IRQ_CAN1_TX,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = IRQ_CAN1_ERROR,
+ .end = IRQ_CAN1_ERROR,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device bfin_can1_device = {
+ .name = "bfin_can",
+ .id = 1,
+ .num_resources = ARRAY_SIZE(bfin_can1_resources),
+ .resource = bfin_can1_resources,
+ .dev = {
+ .platform_data = &bfin_can1_peripherals, /* Passed to driver */
+ },
+};
+
#endif
#if defined(CONFIG_PATA_BF54X) || defined(CONFIG_PATA_BF54X_MODULE)
@@ -1366,7 +1406,8 @@ static struct platform_device *ezkit_devices[] __initdata = {
#endif
#if defined(CONFIG_CAN_BFIN) || defined(CONFIG_CAN_BFIN_MODULE)
- &bfin_can_device,
+ &bfin_can0_device,
+ &bfin_can1_device,
#endif
#if defined(CONFIG_PATA_BF54X) || defined(CONFIG_PATA_BF54X_MODULE)
diff --git a/arch/blackfin/mach-bf548/include/mach/anomaly.h b/arch/blackfin/mach-bf548/include/mach/anomaly.h
index 4070079e2c0..ffd0537295a 100644
--- a/arch/blackfin/mach-bf548/include/mach/anomaly.h
+++ b/arch/blackfin/mach-bf548/include/mach/anomaly.h
@@ -81,7 +81,11 @@
/* PLL Status Register Is Inaccurate */
#define ANOMALY_05000351 (__SILICON_REVISION__ < 1)
/* bfrom_SysControl() Firmware Function Performs Improper System Reset */
-#define ANOMALY_05000353 (__SILICON_REVISION__ < 2)
+/*
+ * Note: anomaly sheet says this is fixed with bf54x-0.2+, but testing
+ * shows that the fix itself does not cover all cases.
+ */
+#define ANOMALY_05000353 (1)
/* Regulator Programming Blocked when Hibernate Wakeup Source Remains Active */
#define ANOMALY_05000355 (__SILICON_REVISION__ < 1)
/* System Stalled During A Core Access To AMC While A Core Access To NFC FIFO Is Required */
diff --git a/arch/blackfin/mach-bf548/include/mach/defBF544.h b/arch/blackfin/mach-bf548/include/mach/defBF544.h
index 642468c1bcb..bcccab36629 100644
--- a/arch/blackfin/mach-bf548/include/mach/defBF544.h
+++ b/arch/blackfin/mach-bf548/include/mach/defBF544.h
@@ -657,22 +657,4 @@
/* Bit masks for EPPI0 are obtained from common base header for EPPIx (EPPI1 and EPPI2) */
-/* Bit masks for HMDMAx_CONTROL */
-
-#define HMDMAEN 0x1 /* Handshake MDMA Enable */
-#define REP 0x2 /* Handshake MDMA Request Polarity */
-#define UTE 0x8 /* Urgency Threshold Enable */
-#define OIE 0x10 /* Overflow Interrupt Enable */
-#define BDIE 0x20 /* Block Done Interrupt Enable */
-#define MBDI 0x40 /* Mask Block Done Interrupt */
-#define DRQ 0x300 /* Handshake MDMA Request Type */
-#define RBC 0x1000 /* Force Reload of BCOUNT */
-#define PS 0x2000 /* Pin Status */
-#define OI 0x4000 /* Overflow Interrupt Generated */
-#define BDI 0x8000 /* Block Done Interrupt Generated */
-
-/* ******************************************* */
-/* MULTI BIT MACRO ENUMERATIONS */
-/* ******************************************* */
-
#endif /* _DEF_BF544_H */
diff --git a/arch/blackfin/mach-bf548/include/mach/defBF547.h b/arch/blackfin/mach-bf548/include/mach/defBF547.h
index 2f3337cd311..1cbba115f96 100644
--- a/arch/blackfin/mach-bf548/include/mach/defBF547.h
+++ b/arch/blackfin/mach-bf548/include/mach/defBF547.h
@@ -1063,23 +1063,4 @@
#define DMA_COUNT_LOW 0xffff /* Lower 16-bits of byte count of DMA transfer for DMA master channel */
-/* Bit masks for HMDMAx_CONTROL */
-
-#define HMDMAEN 0x1 /* Handshake MDMA Enable */
-#define REP 0x2 /* Handshake MDMA Request Polarity */
-#define UTE 0x8 /* Urgency Threshold Enable */
-#define OIE 0x10 /* Overflow Interrupt Enable */
-#define BDIE 0x20 /* Block Done Interrupt Enable */
-#define MBDI 0x40 /* Mask Block Done Interrupt */
-#define DRQ 0x300 /* Handshake MDMA Request Type */
-#define RBC 0x1000 /* Force Reload of BCOUNT */
-#define PS 0x2000 /* Pin Status */
-#define OI 0x4000 /* Overflow Interrupt Generated */
-#define BDI 0x8000 /* Block Done Interrupt Generated */
-
-/* ******************************************* */
-/* MULTI BIT MACRO ENUMERATIONS */
-/* ******************************************* */
-
-
#endif /* _DEF_BF547_H */
diff --git a/arch/blackfin/mach-bf548/include/mach/dma.h b/arch/blackfin/mach-bf548/include/mach/dma.h
index a30d242c739..1a1091b071f 100644
--- a/arch/blackfin/mach-bf548/include/mach/dma.h
+++ b/arch/blackfin/mach-bf548/include/mach/dma.h
@@ -27,17 +27,37 @@
#define CH_PIXC_OVERLAY 16
#define CH_PIXC_OUTPUT 17
#define CH_SPORT2_RX 18
-#define CH_UART2_RX 18
#define CH_SPORT2_TX 19
-#define CH_UART2_TX 19
#define CH_SPORT3_RX 20
-#define CH_UART3_RX 20
#define CH_SPORT3_TX 21
-#define CH_UART3_TX 21
#define CH_SDH 22
#define CH_NFC 22
#define CH_SPI2 23
+#if defined(CONFIG_UART2_DMA_RX_ON_DMA13)
+#define CH_UART2_RX 13
+#define IRQ_UART2_RX BFIN_IRQ(37) /* UART2 RX USE EPP1 (DMA13) Interrupt */
+#define CH_UART2_TX 14
+#define IRQ_UART2_TX BFIN_IRQ(38) /* UART2 RX USE EPP1 (DMA14) Interrupt */
+#else /* Default USE SPORT2's DMA Channel */
+#define CH_UART2_RX 18
+#define IRQ_UART2_RX BFIN_IRQ(33) /* UART2 RX (DMA18) Interrupt */
+#define CH_UART2_TX 19
+#define IRQ_UART2_TX BFIN_IRQ(34) /* UART2 TX (DMA19) Interrupt */
+#endif
+
+#if defined(CONFIG_UART3_DMA_RX_ON_DMA15)
+#define CH_UART3_RX 15
+#define IRQ_UART3_RX BFIN_IRQ(64) /* UART3 RX USE PIXC IN0 (DMA15) Interrupt */
+#define CH_UART3_TX 16
+#define IRQ_UART3_TX BFIN_IRQ(65) /* UART3 TX USE PIXC IN1 (DMA16) Interrupt */
+#else /* Default USE SPORT3's DMA Channel */
+#define CH_UART3_RX 20
+#define IRQ_UART3_RX BFIN_IRQ(35) /* UART3 RX (DMA20) Interrupt */
+#define CH_UART3_TX 21
+#define IRQ_UART3_TX BFIN_IRQ(36) /* UART3 TX (DMA21) Interrupt */
+#endif
+
#define CH_MEM_STREAM0_DEST 24
#define CH_MEM_STREAM0_SRC 25
#define CH_MEM_STREAM1_DEST 26
diff --git a/arch/blackfin/mach-bf548/include/mach/irq.h b/arch/blackfin/mach-bf548/include/mach/irq.h
index 99fd1b2c53d..7f87787e773 100644
--- a/arch/blackfin/mach-bf548/include/mach/irq.h
+++ b/arch/blackfin/mach-bf548/include/mach/irq.h
@@ -74,13 +74,9 @@ Events (highest priority) EMU 0
#define IRQ_UART2_ERROR BFIN_IRQ(31) /* UART2 Status (Error) Interrupt */
#define IRQ_CAN0_ERROR BFIN_IRQ(32) /* CAN0 Status (Error) Interrupt */
#define IRQ_SPORT2_RX BFIN_IRQ(33) /* SPORT2 RX (DMA18) Interrupt */
-#define IRQ_UART2_RX BFIN_IRQ(33) /* UART2 RX (DMA18) Interrupt */
#define IRQ_SPORT2_TX BFIN_IRQ(34) /* SPORT2 TX (DMA19) Interrupt */
-#define IRQ_UART2_TX BFIN_IRQ(34) /* UART2 TX (DMA19) Interrupt */
#define IRQ_SPORT3_RX BFIN_IRQ(35) /* SPORT3 RX (DMA20) Interrupt */
-#define IRQ_UART3_RX BFIN_IRQ(35) /* UART3 RX (DMA20) Interrupt */
#define IRQ_SPORT3_TX BFIN_IRQ(36) /* SPORT3 TX (DMA21) Interrupt */
-#define IRQ_UART3_TX BFIN_IRQ(36) /* UART3 TX (DMA21) Interrupt */
#define IRQ_EPPI1 BFIN_IRQ(37) /* EPP1 (DMA13) Interrupt */
#define IRQ_EPPI2 BFIN_IRQ(38) /* EPP2 (DMA14) Interrupt */
#define IRQ_SPI1 BFIN_IRQ(39) /* SPI1 (DMA5) Interrupt */
diff --git a/arch/blackfin/mach-bf561/boards/cm_bf561.c b/arch/blackfin/mach-bf561/boards/cm_bf561.c
index 3b67929d4c0..87595cd38af 100644
--- a/arch/blackfin/mach-bf561/boards/cm_bf561.c
+++ b/arch/blackfin/mach-bf561/boards/cm_bf561.c
@@ -541,7 +541,7 @@ static int __init cm_bf561_init(void)
#endif
#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
- irq_desc[PATA_INT].status |= IRQ_NOAUTOEN;
+ irq_set_status_flags(PATA_INT, IRQ_NOAUTOEN);
#endif
return 0;
}
diff --git a/arch/blackfin/mach-bf561/hotplug.c b/arch/blackfin/mach-bf561/hotplug.c
index 4cd3b28cd04..0123117b8ff 100644
--- a/arch/blackfin/mach-bf561/hotplug.c
+++ b/arch/blackfin/mach-bf561/hotplug.c
@@ -5,30 +5,36 @@
* Licensed under the GPL-2 or later.
*/
+#include <linux/smp.h>
#include <asm/blackfin.h>
-#include <asm/irq.h>
-#include <asm/smp.h>
-
-#define SIC_SYSIRQ(irq) (irq - (IRQ_CORETMR + 1))
+#include <asm/cacheflush.h>
+#include <mach/pll.h>
int hotplug_coreb;
void platform_cpu_die(void)
{
- unsigned long iwr[2] = {0, 0};
- unsigned long bank = SIC_SYSIRQ(IRQ_SUPPLE_0) / 32;
- unsigned long bit = 1 << (SIC_SYSIRQ(IRQ_SUPPLE_0) % 32);
+ unsigned long iwr;
hotplug_coreb = 1;
- iwr[bank] = bit;
+ /*
+ * When CoreB wakes up, the code in _coreb_trampoline_start cannot
+ * turn off the data cache. This causes the CoreB failed to boot.
+ * As a workaround, we invalidate all the data cache before sleep.
+ */
+ blackfin_invalidate_entire_dcache();
/* disable core timer */
bfin_write_TCNTL(0);
- /* clear ipi interrupt IRQ_SUPPLE_0 */
+ /* clear ipi interrupt IRQ_SUPPLE_0 of CoreB */
bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | (1 << (10 + 1)));
SSYNC();
- coreb_sleep(iwr[0], iwr[1], 0);
+ /* set CoreB wakeup by ipi0, iwr will be discarded */
+ bfin_iwr_set_sup0(&iwr, &iwr, &iwr);
+ SSYNC();
+
+ coreb_die();
}
diff --git a/arch/blackfin/mach-bf561/secondary.S b/arch/blackfin/mach-bf561/secondary.S
index 4624eebbf9c..4c462838f4e 100644
--- a/arch/blackfin/mach-bf561/secondary.S
+++ b/arch/blackfin/mach-bf561/secondary.S
@@ -13,7 +13,11 @@
#include <asm/asm-offsets.h>
#include <asm/trace.h>
-__INIT
+/*
+ * This code must come first as CoreB is hardcoded (in hardware)
+ * to start at the beginning of its L1 instruction memory.
+ */
+.section .l1.text.head
/* Lay the initial stack into the L1 scratch area of Core B */
#define INITIAL_STACK (COREB_L1_SCRATCH_START + L1_SCRATCH_LENGTH - 12)
@@ -160,43 +164,34 @@ ENTRY(_coreb_trampoline_start)
.LWAIT_HERE:
jump .LWAIT_HERE;
ENDPROC(_coreb_trampoline_start)
-ENTRY(_coreb_trampoline_end)
+#ifdef CONFIG_HOTPLUG_CPU
.section ".text"
-ENTRY(_set_sicb_iwr)
- P0.H = hi(SICB_IWR0);
- P0.L = lo(SICB_IWR0);
- P1.H = hi(SICB_IWR1);
- P1.L = lo(SICB_IWR1);
- [P0] = R0;
- [P1] = R1;
- SSYNC;
- RTS;
-ENDPROC(_set_sicb_iwr)
-
-ENTRY(_coreb_sleep)
+ENTRY(_coreb_die)
sp.l = lo(INITIAL_STACK);
sp.h = hi(INITIAL_STACK);
fp = sp;
usp = sp;
- call _set_sicb_iwr;
-
CLI R2;
SSYNC;
IDLE;
STI R2;
R0 = IWR_DISABLE_ALL;
- R1 = IWR_DISABLE_ALL;
- call _set_sicb_iwr;
+ P0.H = hi(SYSMMR_BASE);
+ P0.L = lo(SYSMMR_BASE);
+ [P0 + (SICB_IWR0 - SYSMMR_BASE)] = R0;
+ [P0 + (SICB_IWR1 - SYSMMR_BASE)] = R0;
+ SSYNC;
p0.h = hi(COREB_L1_CODE_START);
p0.l = lo(COREB_L1_CODE_START);
jump (p0);
-ENDPROC(_coreb_sleep)
+ENDPROC(_coreb_die)
+#endif
-__CPUINIT
+__INIT
ENTRY(_coreb_start)
[--sp] = reti;
diff --git a/arch/blackfin/mach-bf561/smp.c b/arch/blackfin/mach-bf561/smp.c
index 1074a7ef81c..7b07740cf68 100644
--- a/arch/blackfin/mach-bf561/smp.c
+++ b/arch/blackfin/mach-bf561/smp.c
@@ -30,18 +30,11 @@ void __init platform_init_cpus(void)
void __init platform_prepare_cpus(unsigned int max_cpus)
{
- int len;
-
- len = &coreb_trampoline_end - &coreb_trampoline_start + 1;
- BUG_ON(len > L1_CODE_LENGTH);
-
- dma_memcpy((void *)COREB_L1_CODE_START, &coreb_trampoline_start, len);
+ bfin_relocate_coreb_l1_mem();
/* Both cores ought to be present on a bf561! */
cpu_set(0, cpu_present_map); /* CoreA */
cpu_set(1, cpu_present_map); /* CoreB */
-
- printk(KERN_INFO "CoreB bootstrap code to SRAM %p via DMA.\n", (void *)COREB_L1_CODE_START);
}
int __init setup_profiling_timer(unsigned int multiplier) /* not supported */
@@ -161,9 +154,13 @@ void platform_clear_ipi(unsigned int cpu, int irq)
void __cpuinit bfin_local_timer_setup(void)
{
#if defined(CONFIG_TICKSOURCE_CORETMR)
+ struct irq_data *data = irq_get_irq_data(IRQ_CORETMR);
+ struct irq_chip *chip = irq_data_get_irq_chip(data);
+
bfin_coretmr_init();
bfin_coretmr_clockevent_init();
- get_irq_chip(IRQ_CORETMR)->unmask(IRQ_CORETMR);
+
+ chip->irq_unmask(data);
#else
/* Power down the core timer, just to play safe. */
bfin_write_TCNTL(0);
diff --git a/arch/blackfin/mach-common/arch_checks.c b/arch/blackfin/mach-common/arch_checks.c
index bceb98126c2..d8643fdd0fc 100644
--- a/arch/blackfin/mach-common/arch_checks.c
+++ b/arch/blackfin/mach-common/arch_checks.c
@@ -61,6 +61,6 @@
# error "Anomaly 05000220 does not allow you to use Write Back cache with L2 or External Memory"
#endif
-#if ANOMALY_05000491 && !defined(CONFIG_CACHE_FLUSH_L1)
+#if ANOMALY_05000491 && !defined(CONFIG_ICACHE_FLUSH_L1)
# error You need IFLUSH in L1 inst while Anomaly 05000491 applies
#endif
diff --git a/arch/blackfin/mach-common/cache.S b/arch/blackfin/mach-common/cache.S
index ab4a925a443..9f4dd35bfd7 100644
--- a/arch/blackfin/mach-common/cache.S
+++ b/arch/blackfin/mach-common/cache.S
@@ -11,12 +11,6 @@
#include <asm/cache.h>
#include <asm/page.h>
-#ifdef CONFIG_CACHE_FLUSH_L1
-.section .l1.text
-#else
-.text
-#endif
-
/* 05000443 - IFLUSH cannot be last instruction in hardware loop */
#if ANOMALY_05000443
# define BROK_FLUSH_INST "IFLUSH"
@@ -68,11 +62,43 @@
RTS;
.endm
+#ifdef CONFIG_ICACHE_FLUSH_L1
+.section .l1.text
+#else
+.text
+#endif
+
/* Invalidate all instruction cache lines assocoiated with this memory area */
+#ifdef CONFIG_SMP
+# define _blackfin_icache_flush_range _blackfin_icache_flush_range_l1
+#endif
ENTRY(_blackfin_icache_flush_range)
do_flush IFLUSH
ENDPROC(_blackfin_icache_flush_range)
+#ifdef CONFIG_SMP
+.text
+# undef _blackfin_icache_flush_range
+ENTRY(_blackfin_icache_flush_range)
+ p0.L = LO(DSPID);
+ p0.H = HI(DSPID);
+ r3 = [p0];
+ r3 = r3.b (z);
+ p2 = r3;
+ p0.L = _blackfin_iflush_l1_entry;
+ p0.H = _blackfin_iflush_l1_entry;
+ p0 = p0 + (p2 << 2);
+ p1 = [p0];
+ jump (p1);
+ENDPROC(_blackfin_icache_flush_range)
+#endif
+
+#ifdef CONFIG_DCACHE_FLUSH_L1
+.section .l1.text
+#else
+.text
+#endif
+
/* Throw away all D-cached data in specified region without any obligation to
* write them back. Since the Blackfin ISA does not have an "invalidate"
* instruction, we use flush/invalidate. Perhaps as a speed optimization we
diff --git a/arch/blackfin/mach-common/cpufreq.c b/arch/blackfin/mach-common/cpufreq.c
index f4cf11d362e..85dc6d69f9c 100644
--- a/arch/blackfin/mach-common/cpufreq.c
+++ b/arch/blackfin/mach-common/cpufreq.c
@@ -1,7 +1,7 @@
/*
* Blackfin core clock scaling
*
- * Copyright 2008-2009 Analog Devices Inc.
+ * Copyright 2008-2011 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
@@ -16,10 +16,8 @@
#include <asm/time.h>
#include <asm/dpmc.h>
-#define CPUFREQ_CPU 0
-
/* this is the table of CCLK frequencies, in Hz */
-/* .index is the entry in the auxillary dpm_state_table[] */
+/* .index is the entry in the auxiliary dpm_state_table[] */
static struct cpufreq_frequency_table bfin_freq_table[] = {
{
.frequency = CPUFREQ_TABLE_END,
@@ -46,7 +44,7 @@ static struct bfin_dpm_state {
#if defined(CONFIG_CYCLES_CLOCKSOURCE)
/*
- * normalized to maximum frequncy offset for CYCLES,
+ * normalized to maximum frequency offset for CYCLES,
* used in time-ts cycles clock source, but could be used
* somewhere also.
*/
diff --git a/arch/blackfin/mach-common/dpmc.c b/arch/blackfin/mach-common/dpmc.c
index 02c7efd1bcf..382099fd556 100644
--- a/arch/blackfin/mach-common/dpmc.c
+++ b/arch/blackfin/mach-common/dpmc.c
@@ -61,17 +61,63 @@ err_out:
}
#ifdef CONFIG_CPU_FREQ
+# ifdef CONFIG_SMP
+static void bfin_idle_this_cpu(void *info)
+{
+ unsigned long flags = 0;
+ unsigned long iwr0, iwr1, iwr2;
+ unsigned int cpu = smp_processor_id();
+
+ local_irq_save_hw(flags);
+ bfin_iwr_set_sup0(&iwr0, &iwr1, &iwr2);
+
+ platform_clear_ipi(cpu, IRQ_SUPPLE_0);
+ SSYNC();
+ asm("IDLE;");
+ bfin_iwr_restore(iwr0, iwr1, iwr2);
+
+ local_irq_restore_hw(flags);
+}
+
+static void bfin_idle_cpu(void)
+{
+ smp_call_function(bfin_idle_this_cpu, NULL, 0);
+}
+
+static void bfin_wakeup_cpu(void)
+{
+ unsigned int cpu;
+ unsigned int this_cpu = smp_processor_id();
+ cpumask_t mask = cpu_online_map;
+
+ cpu_clear(this_cpu, mask);
+ for_each_cpu_mask(cpu, mask)
+ platform_send_ipi_cpu(cpu, IRQ_SUPPLE_0);
+}
+
+# else
+static void bfin_idle_cpu(void) {}
+static void bfin_wakeup_cpu(void) {}
+# endif
+
static int
vreg_cpufreq_notifier(struct notifier_block *nb, unsigned long val, void *data)
{
struct cpufreq_freqs *freq = data;
+ if (freq->cpu != CPUFREQ_CPU)
+ return 0;
+
if (val == CPUFREQ_PRECHANGE && freq->old < freq->new) {
+ bfin_idle_cpu();
bfin_set_vlev(bfin_get_vlev(freq->new));
udelay(pdata->vr_settling_time); /* Wait until Volatge settled */
-
- } else if (val == CPUFREQ_POSTCHANGE && freq->old > freq->new)
+ bfin_wakeup_cpu();
+ } else if (val == CPUFREQ_POSTCHANGE && freq->old > freq->new) {
+ bfin_idle_cpu();
bfin_set_vlev(bfin_get_vlev(freq->new));
+ bfin_wakeup_cpu();
+ }
return 0;
}
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index bc08c98d008..f96933f48a7 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -268,7 +268,7 @@ ENTRY(_handle_bad_cplb)
/* To get here, we just tried and failed to change a CPLB
* so, handle things in trap_c (C code), by lowering to
* IRQ5, just like we normally do. Since this is not a
- * "normal" return path, we have a do alot of stuff to
+ * "normal" return path, we have a do a lot of stuff to
* the stack to get ready so, we can fall through - we
* need to make a CPLB exception look like a normal exception
*/
@@ -817,7 +817,7 @@ _new_old_task:
rets = [sp++];
/*
- * When we come out of resume, r0 carries "old" task, becuase we are
+ * When we come out of resume, r0 carries "old" task, because we are
* in "new" task.
*/
rts;
@@ -952,8 +952,17 @@ ENDPROC(_evt_up_evt14)
#ifdef CONFIG_IPIPE
_resume_kernel_from_int:
+ r1 = LO(~0x8000) (Z);
+ r1 = r0 & r1;
+ r0 = 1;
+ r0 = r1 - r0;
+ r2 = r1 & r0;
+ cc = r2 == 0;
+ /* Sync the root stage only from the outer interrupt level. */
+ if !cc jump .Lnosync;
r0.l = ___ipipe_sync_root;
r0.h = ___ipipe_sync_root;
+ [--sp] = reti;
[--sp] = rets;
[--sp] = ( r7:4, p5:3 );
SP += -12;
@@ -961,6 +970,8 @@ _resume_kernel_from_int:
SP += 12;
( r7:4, p5:3 ) = [sp++];
rets = [sp++];
+ reti = [sp++];
+.Lnosync:
rts
#elif defined(CONFIG_PREEMPT)
@@ -1738,6 +1749,10 @@ ENTRY(_sys_call_table)
.long _sys_fanotify_mark
.long _sys_prlimit64
.long _sys_cacheflush
+ .long _sys_name_to_handle_at /* 375 */
+ .long _sys_open_by_handle_at
+ .long _sys_clock_adjtime
+ .long _sys_syncfs
.rept NR_syscalls-(.-_sys_call_table)/4
.long _sys_ni_syscall
diff --git a/arch/blackfin/mach-common/head.S b/arch/blackfin/mach-common/head.S
index 4391621d904..76de5724c1e 100644
--- a/arch/blackfin/mach-common/head.S
+++ b/arch/blackfin/mach-common/head.S
@@ -31,6 +31,7 @@ ENDPROC(__init_clear_bss)
ENTRY(__start)
/* R0: argument of command line string, passed from uboot, save it */
R7 = R0;
+
/* Enable Cycle Counter and Nesting Of Interrupts */
#ifdef CONFIG_BFIN_SCRATCH_REG_CYCLES
R0 = SYSCFG_SNEN;
@@ -38,76 +39,49 @@ ENTRY(__start)
R0 = SYSCFG_SNEN | SYSCFG_CCEN;
#endif
SYSCFG = R0;
- R0 = 0;
-
- /* Clear Out All the data and pointer Registers */
- R1 = R0;
- R2 = R0;
- R3 = R0;
- R4 = R0;
- R5 = R0;
- R6 = R0;
-
- P0 = R0;
- P1 = R0;
- P2 = R0;
- P3 = R0;
- P4 = R0;
- P5 = R0;
-
- LC0 = r0;
- LC1 = r0;
- L0 = r0;
- L1 = r0;
- L2 = r0;
- L3 = r0;
-
- /* Clear Out All the DAG Registers */
- B0 = r0;
- B1 = r0;
- B2 = r0;
- B3 = r0;
-
- I0 = r0;
- I1 = r0;
- I2 = r0;
- I3 = r0;
-
- M0 = r0;
- M1 = r0;
- M2 = r0;
- M3 = r0;
+
+ /* Optimization register tricks: keep a base value in the
+ * reserved P registers so we use the load/store with an
+ * offset syntax. R0 = [P5 + <constant>];
+ * P5 - core MMR base
+ * R6 - 0
+ */
+ r6 = 0;
+ p5.l = 0;
+ p5.h = hi(COREMMR_BASE);
+
+ /* Zero out registers required by Blackfin ABI */
+
+ /* Disable circular buffers */
+ L0 = r6;
+ L1 = r6;
+ L2 = r6;
+ L3 = r6;
+
+ /* Disable hardware loops in case we were started by 'go' */
+ LC0 = r6;
+ LC1 = r6;
/*
* Clear ITEST_COMMAND and DTEST_COMMAND registers,
* Leaving these as non-zero can confuse the emulator
*/
- p0.L = LO(DTEST_COMMAND);
- p0.H = HI(DTEST_COMMAND);
- [p0] = R0;
- [p0 + (ITEST_COMMAND - DTEST_COMMAND)] = R0;
+ [p5 + (DTEST_COMMAND - COREMMR_BASE)] = r6;
+ [p5 + (ITEST_COMMAND - COREMMR_BASE)] = r6;
CSYNC;
trace_buffer_init(p0,r0);
- P0 = R1;
- R0 = R1;
/* Turn off the icache */
- p0.l = LO(IMEM_CONTROL);
- p0.h = HI(IMEM_CONTROL);
- R1 = [p0];
- R0 = ~ENICPLB;
- R0 = R0 & R1;
- [p0] = R0;
+ r1 = [p5 + (IMEM_CONTROL - COREMMR_BASE)];
+ BITCLR (r1, ENICPLB_P);
+ [p5 + (IMEM_CONTROL - COREMMR_BASE)] = r1;
SSYNC;
/* Turn off the dcache */
- p0.l = LO(DMEM_CONTROL);
- p0.h = HI(DMEM_CONTROL);
- R1 = [p0];
- R0 = ~ENDCPLB;
- R0 = R0 & R1;
- [p0] = R0;
+ r1 = [p5 + (DMEM_CONTROL - COREMMR_BASE)];
+ BITCLR (r1, ENDCPLB_P);
+ [p5 + (DMEM_CONTROL - COREMMR_BASE)] = r1;
SSYNC;
/* in case of double faults, save a few things */
@@ -122,25 +96,25 @@ ENTRY(__start)
* below
*/
GET_PDA(p0, r0);
- r6 = [p0 + PDA_DF_RETX];
+ r5 = [p0 + PDA_DF_RETX];
p1.l = _init_saved_retx;
p1.h = _init_saved_retx;
- [p1] = r6;
+ [p1] = r5;
- r6 = [p0 + PDA_DF_DCPLB];
+ r5 = [p0 + PDA_DF_DCPLB];
p1.l = _init_saved_dcplb_fault_addr;
p1.h = _init_saved_dcplb_fault_addr;
- [p1] = r6;
+ [p1] = r5;
- r6 = [p0 + PDA_DF_ICPLB];
+ r5 = [p0 + PDA_DF_ICPLB];
p1.l = _init_saved_icplb_fault_addr;
p1.h = _init_saved_icplb_fault_addr;
- [p1] = r6;
+ [p1] = r5;
- r6 = [p0 + PDA_DF_SEQSTAT];
+ r5 = [p0 + PDA_DF_SEQSTAT];
p1.l = _init_saved_seqstat;
p1.h = _init_saved_seqstat;
- [p1] = r6;
+ [p1] = r5;
#endif
/* Initialize stack pointer */
@@ -155,7 +129,7 @@ ENTRY(__start)
sti r0;
#endif
- r0 = 0 (x);
+ r0 = r6;
/* Zero out all of the fun bss regions */
#if L1_DATA_A_LENGTH > 0
r1.l = __sbss_l1;
@@ -200,7 +174,7 @@ ENTRY(__start)
sp.l = lo(KERNEL_CLOCK_STACK);
sp.h = hi(KERNEL_CLOCK_STACK);
call _init_clocks;
- sp = usp; /* usp hasnt been touched, so restore from there */
+ sp = usp; /* usp hasn't been touched, so restore from there */
#endif
/* This section keeps the processor in supervisor mode
@@ -210,11 +184,9 @@ ENTRY(__start)
/* EVT15 = _real_start */
- p0.l = lo(EVT15);
- p0.h = hi(EVT15);
p1.l = _real_start;
p1.h = _real_start;
- [p0] = p1;
+ [p5 + (EVT15 - COREMMR_BASE)] = p1;
csync;
#ifdef CONFIG_EARLY_PRINTK
diff --git a/arch/blackfin/mach-common/interrupt.S b/arch/blackfin/mach-common/interrupt.S
index 2df37db3b49..469ce7282dc 100644
--- a/arch/blackfin/mach-common/interrupt.S
+++ b/arch/blackfin/mach-common/interrupt.S
@@ -274,16 +274,16 @@ ENDPROC(_evt_system_call)
* level to EVT14 to prepare the caller for a normal interrupt
* return through RTI.
*
- * We currently use this facility in two occasions:
+ * We currently use this feature in two occasions:
*
- * - to branch to __ipipe_irq_tail_hook as requested by a high
+ * - before branching to __ipipe_irq_tail_hook as requested by a high
* priority domain after the pipeline delivered an interrupt,
* e.g. such as Xenomai, in order to start its rescheduling
* procedure, since we may not switch tasks when IRQ levels are
* nested on the Blackfin, so we have to fake an interrupt return
* so that we may reschedule immediately.
*
- * - to branch to sync_root_irqs, in order to play any interrupt
+ * - before branching to __ipipe_sync_root(), in order to play any interrupt
* pending for the root domain (i.e. the Linux kernel). This lowers
* the core priority level enough so that Linux IRQ handlers may
* never delay interrupts handled by high priority domains; we defer
diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c
index a604f19d8dc..43d9fb195c1 100644
--- a/arch/blackfin/mach-common/ints-priority.c
+++ b/arch/blackfin/mach-common/ints-priority.c
@@ -15,6 +15,7 @@
#include <linux/kernel_stat.h>
#include <linux/seq_file.h>
#include <linux/irq.h>
+#include <linux/sched.h>
#ifdef CONFIG_IPIPE
#include <linux/ipipe.h>
#endif
@@ -124,21 +125,21 @@ static void __init search_IAR(void)
* This is for core internal IRQs
*/
-static void bfin_ack_noop(unsigned int irq)
+static void bfin_ack_noop(struct irq_data *d)
{
/* Dummy function. */
}
-static void bfin_core_mask_irq(unsigned int irq)
+static void bfin_core_mask_irq(struct irq_data *d)
{
- bfin_irq_flags &= ~(1 << irq);
+ bfin_irq_flags &= ~(1 << d->irq);
if (!hard_irqs_disabled())
hard_local_irq_enable();
}
-static void bfin_core_unmask_irq(unsigned int irq)
+static void bfin_core_unmask_irq(struct irq_data *d)
{
- bfin_irq_flags |= 1 << irq;
+ bfin_irq_flags |= 1 << d->irq;
/*
* If interrupts are enabled, IMASK must contain the same value
* as bfin_irq_flags. Make sure that invariant holds. If interrupts
@@ -176,6 +177,11 @@ static void bfin_internal_mask_irq(unsigned int irq)
hard_local_irq_restore(flags);
}
+static void bfin_internal_mask_irq_chip(struct irq_data *d)
+{
+ bfin_internal_mask_irq(d->irq);
+}
+
#ifdef CONFIG_SMP
static void bfin_internal_unmask_irq_affinity(unsigned int irq,
const struct cpumask *affinity)
@@ -211,19 +217,24 @@ static void bfin_internal_unmask_irq(unsigned int irq)
}
#ifdef CONFIG_SMP
-static void bfin_internal_unmask_irq(unsigned int irq)
+static void bfin_internal_unmask_irq_chip(struct irq_data *d)
{
- struct irq_desc *desc = irq_to_desc(irq);
- bfin_internal_unmask_irq_affinity(irq, desc->affinity);
+ bfin_internal_unmask_irq_affinity(d->irq, d->affinity);
}
-static int bfin_internal_set_affinity(unsigned int irq, const struct cpumask *mask)
+static int bfin_internal_set_affinity(struct irq_data *d,
+ const struct cpumask *mask, bool force)
{
- bfin_internal_mask_irq(irq);
- bfin_internal_unmask_irq_affinity(irq, mask);
+ bfin_internal_mask_irq(d->irq);
+ bfin_internal_unmask_irq_affinity(d->irq, mask);
return 0;
}
+#else
+static void bfin_internal_unmask_irq_chip(struct irq_data *d)
+{
+ bfin_internal_unmask_irq(d->irq);
+}
#endif
#ifdef CONFIG_PM
@@ -279,28 +290,33 @@ int bfin_internal_set_wake(unsigned int irq, unsigned int state)
return 0;
}
+
+static int bfin_internal_set_wake_chip(struct irq_data *d, unsigned int state)
+{
+ return bfin_internal_set_wake(d->irq, state);
+}
#endif
static struct irq_chip bfin_core_irqchip = {
.name = "CORE",
- .ack = bfin_ack_noop,
- .mask = bfin_core_mask_irq,
- .unmask = bfin_core_unmask_irq,
+ .irq_ack = bfin_ack_noop,
+ .irq_mask = bfin_core_mask_irq,
+ .irq_unmask = bfin_core_unmask_irq,
};
static struct irq_chip bfin_internal_irqchip = {
.name = "INTN",
- .ack = bfin_ack_noop,
- .mask = bfin_internal_mask_irq,
- .unmask = bfin_internal_unmask_irq,
- .mask_ack = bfin_internal_mask_irq,
- .disable = bfin_internal_mask_irq,
- .enable = bfin_internal_unmask_irq,
+ .irq_ack = bfin_ack_noop,
+ .irq_mask = bfin_internal_mask_irq_chip,
+ .irq_unmask = bfin_internal_unmask_irq_chip,
+ .irq_mask_ack = bfin_internal_mask_irq_chip,
+ .irq_disable = bfin_internal_mask_irq_chip,
+ .irq_enable = bfin_internal_unmask_irq_chip,
#ifdef CONFIG_SMP
- .set_affinity = bfin_internal_set_affinity,
+ .irq_set_affinity = bfin_internal_set_affinity,
#endif
#ifdef CONFIG_PM
- .set_wake = bfin_internal_set_wake,
+ .irq_set_wake = bfin_internal_set_wake_chip,
#endif
};
@@ -312,33 +328,32 @@ static void bfin_handle_irq(unsigned irq)
__ipipe_handle_irq(irq, &regs);
ipipe_trace_irq_exit(irq);
#else /* !CONFIG_IPIPE */
- struct irq_desc *desc = irq_desc + irq;
- desc->handle_irq(irq, desc);
+ generic_handle_irq(irq);
#endif /* !CONFIG_IPIPE */
}
#ifdef BF537_GENERIC_ERROR_INT_DEMUX
static int error_int_mask;
-static void bfin_generic_error_mask_irq(unsigned int irq)
+static void bfin_generic_error_mask_irq(struct irq_data *d)
{
- error_int_mask &= ~(1L << (irq - IRQ_PPI_ERROR));
+ error_int_mask &= ~(1L << (d->irq - IRQ_PPI_ERROR));
if (!error_int_mask)
bfin_internal_mask_irq(IRQ_GENERIC_ERROR);
}
-static void bfin_generic_error_unmask_irq(unsigned int irq)
+static void bfin_generic_error_unmask_irq(struct irq_data *d)
{
bfin_internal_unmask_irq(IRQ_GENERIC_ERROR);
- error_int_mask |= 1L << (irq - IRQ_PPI_ERROR);
+ error_int_mask |= 1L << (d->irq - IRQ_PPI_ERROR);
}
static struct irq_chip bfin_generic_error_irqchip = {
.name = "ERROR",
- .ack = bfin_ack_noop,
- .mask_ack = bfin_generic_error_mask_irq,
- .mask = bfin_generic_error_mask_irq,
- .unmask = bfin_generic_error_unmask_irq,
+ .irq_ack = bfin_ack_noop,
+ .irq_mask_ack = bfin_generic_error_mask_irq,
+ .irq_mask = bfin_generic_error_mask_irq,
+ .irq_unmask = bfin_generic_error_unmask_irq,
};
static void bfin_demux_error_irq(unsigned int int_err_irq,
@@ -448,8 +463,10 @@ static void bfin_mac_status_ack_irq(unsigned int irq)
}
}
-static void bfin_mac_status_mask_irq(unsigned int irq)
+static void bfin_mac_status_mask_irq(struct irq_data *d)
{
+ unsigned int irq = d->irq;
+
mac_stat_int_mask &= ~(1L << (irq - IRQ_MAC_PHYINT));
#ifdef BF537_GENERIC_ERROR_INT_DEMUX
switch (irq) {
@@ -466,8 +483,10 @@ static void bfin_mac_status_mask_irq(unsigned int irq)
bfin_mac_status_ack_irq(irq);
}
-static void bfin_mac_status_unmask_irq(unsigned int irq)
+static void bfin_mac_status_unmask_irq(struct irq_data *d)
{
+ unsigned int irq = d->irq;
+
#ifdef BF537_GENERIC_ERROR_INT_DEMUX
switch (irq) {
case IRQ_MAC_PHYINT:
@@ -484,7 +503,7 @@ static void bfin_mac_status_unmask_irq(unsigned int irq)
}
#ifdef CONFIG_PM
-int bfin_mac_status_set_wake(unsigned int irq, unsigned int state)
+int bfin_mac_status_set_wake(struct irq_data *d, unsigned int state)
{
#ifdef BF537_GENERIC_ERROR_INT_DEMUX
return bfin_internal_set_wake(IRQ_GENERIC_ERROR, state);
@@ -496,12 +515,12 @@ int bfin_mac_status_set_wake(unsigned int irq, unsigned int state)
static struct irq_chip bfin_mac_status_irqchip = {
.name = "MACST",
- .ack = bfin_ack_noop,
- .mask_ack = bfin_mac_status_mask_irq,
- .mask = bfin_mac_status_mask_irq,
- .unmask = bfin_mac_status_unmask_irq,
+ .irq_ack = bfin_ack_noop,
+ .irq_mask_ack = bfin_mac_status_mask_irq,
+ .irq_mask = bfin_mac_status_mask_irq,
+ .irq_unmask = bfin_mac_status_unmask_irq,
#ifdef CONFIG_PM
- .set_wake = bfin_mac_status_set_wake,
+ .irq_set_wake = bfin_mac_status_set_wake,
#endif
};
@@ -538,13 +557,9 @@ static void bfin_demux_mac_status_irq(unsigned int int_err_irq,
static inline void bfin_set_irq_handler(unsigned irq, irq_flow_handler_t handle)
{
#ifdef CONFIG_IPIPE
- _set_irq_handler(irq, handle_level_irq);
-#else
- struct irq_desc *desc = irq_desc + irq;
- /* May not call generic set_irq_handler() due to spinlock
- recursion. */
- desc->handle_irq = handle;
+ handle = handle_level_irq;
#endif
+ __irq_set_handler_locked(irq, handle);
}
static DECLARE_BITMAP(gpio_enabled, MAX_BLACKFIN_GPIOS);
@@ -552,58 +567,59 @@ extern void bfin_gpio_irq_prepare(unsigned gpio);
#if !defined(CONFIG_BF54x)
-static void bfin_gpio_ack_irq(unsigned int irq)
+static void bfin_gpio_ack_irq(struct irq_data *d)
{
/* AFAIK ack_irq in case mask_ack is provided
* get's only called for edge sense irqs
*/
- set_gpio_data(irq_to_gpio(irq), 0);
+ set_gpio_data(irq_to_gpio(d->irq), 0);
}
-static void bfin_gpio_mask_ack_irq(unsigned int irq)
+static void bfin_gpio_mask_ack_irq(struct irq_data *d)
{
- struct irq_desc *desc = irq_desc + irq;
+ unsigned int irq = d->irq;
u32 gpionr = irq_to_gpio(irq);
- if (desc->handle_irq == handle_edge_irq)
+ if (!irqd_is_level_type(d))
set_gpio_data(gpionr, 0);
set_gpio_maska(gpionr, 0);
}
-static void bfin_gpio_mask_irq(unsigned int irq)
+static void bfin_gpio_mask_irq(struct irq_data *d)
{
- set_gpio_maska(irq_to_gpio(irq), 0);
+ set_gpio_maska(irq_to_gpio(d->irq), 0);
}
-static void bfin_gpio_unmask_irq(unsigned int irq)
+static void bfin_gpio_unmask_irq(struct irq_data *d)
{
- set_gpio_maska(irq_to_gpio(irq), 1);
+ set_gpio_maska(irq_to_gpio(d->irq), 1);
}
-static unsigned int bfin_gpio_irq_startup(unsigned int irq)
+static unsigned int bfin_gpio_irq_startup(struct irq_data *d)
{
- u32 gpionr = irq_to_gpio(irq);
+ u32 gpionr = irq_to_gpio(d->irq);
if (__test_and_set_bit(gpionr, gpio_enabled))
bfin_gpio_irq_prepare(gpionr);
- bfin_gpio_unmask_irq(irq);
+ bfin_gpio_unmask_irq(d);
return 0;
}
-static void bfin_gpio_irq_shutdown(unsigned int irq)
+static void bfin_gpio_irq_shutdown(struct irq_data *d)
{
- u32 gpionr = irq_to_gpio(irq);
+ u32 gpionr = irq_to_gpio(d->irq);
- bfin_gpio_mask_irq(irq);
+ bfin_gpio_mask_irq(d);
__clear_bit(gpionr, gpio_enabled);
bfin_gpio_irq_free(gpionr);
}
-static int bfin_gpio_irq_type(unsigned int irq, unsigned int type)
+static int bfin_gpio_irq_type(struct irq_data *d, unsigned int type)
{
+ unsigned int irq = d->irq;
int ret;
char buf[16];
u32 gpionr = irq_to_gpio(irq);
@@ -664,9 +680,9 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type)
}
#ifdef CONFIG_PM
-int bfin_gpio_set_wake(unsigned int irq, unsigned int state)
+int bfin_gpio_set_wake(struct irq_data *d, unsigned int state)
{
- return gpio_pm_wakeup_ctrl(irq_to_gpio(irq), state);
+ return gpio_pm_wakeup_ctrl(irq_to_gpio(d->irq), state);
}
#endif
@@ -818,14 +834,13 @@ void init_pint_lut(void)
}
}
-static void bfin_gpio_ack_irq(unsigned int irq)
+static void bfin_gpio_ack_irq(struct irq_data *d)
{
- struct irq_desc *desc = irq_desc + irq;
- u32 pint_val = irq2pint_lut[irq - SYS_IRQS];
+ u32 pint_val = irq2pint_lut[d->irq - SYS_IRQS];
u32 pintbit = PINT_BIT(pint_val);
u32 bank = PINT_2_BANK(pint_val);
- if ((desc->status & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH) {
+ if (irqd_get_trigger_type(d) == IRQ_TYPE_EDGE_BOTH) {
if (pint[bank]->invert_set & pintbit)
pint[bank]->invert_clear = pintbit;
else
@@ -835,14 +850,13 @@ static void bfin_gpio_ack_irq(unsigned int irq)
}
-static void bfin_gpio_mask_ack_irq(unsigned int irq)
+static void bfin_gpio_mask_ack_irq(struct irq_data *d)
{
- struct irq_desc *desc = irq_desc + irq;
- u32 pint_val = irq2pint_lut[irq - SYS_IRQS];
+ u32 pint_val = irq2pint_lut[d->irq - SYS_IRQS];
u32 pintbit = PINT_BIT(pint_val);
u32 bank = PINT_2_BANK(pint_val);
- if ((desc->status & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH) {
+ if (irqd_get_trigger_type(d) == IRQ_TYPE_EDGE_BOTH) {
if (pint[bank]->invert_set & pintbit)
pint[bank]->invert_clear = pintbit;
else
@@ -853,24 +867,25 @@ static void bfin_gpio_mask_ack_irq(unsigned int irq)
pint[bank]->mask_clear = pintbit;
}
-static void bfin_gpio_mask_irq(unsigned int irq)
+static void bfin_gpio_mask_irq(struct irq_data *d)
{
- u32 pint_val = irq2pint_lut[irq - SYS_IRQS];
+ u32 pint_val = irq2pint_lut[d->irq - SYS_IRQS];
pint[PINT_2_BANK(pint_val)]->mask_clear = PINT_BIT(pint_val);
}
-static void bfin_gpio_unmask_irq(unsigned int irq)
+static void bfin_gpio_unmask_irq(struct irq_data *d)
{
- u32 pint_val = irq2pint_lut[irq - SYS_IRQS];
+ u32 pint_val = irq2pint_lut[d->irq - SYS_IRQS];
u32 pintbit = PINT_BIT(pint_val);
u32 bank = PINT_2_BANK(pint_val);
pint[bank]->mask_set = pintbit;
}
-static unsigned int bfin_gpio_irq_startup(unsigned int irq)
+static unsigned int bfin_gpio_irq_startup(struct irq_data *d)
{
+ unsigned int irq = d->irq;
u32 gpionr = irq_to_gpio(irq);
u32 pint_val = irq2pint_lut[irq - SYS_IRQS];
@@ -884,22 +899,23 @@ static unsigned int bfin_gpio_irq_startup(unsigned int irq)
if (__test_and_set_bit(gpionr, gpio_enabled))
bfin_gpio_irq_prepare(gpionr);
- bfin_gpio_unmask_irq(irq);
+ bfin_gpio_unmask_irq(d);
return 0;
}
-static void bfin_gpio_irq_shutdown(unsigned int irq)
+static void bfin_gpio_irq_shutdown(struct irq_data *d)
{
- u32 gpionr = irq_to_gpio(irq);
+ u32 gpionr = irq_to_gpio(d->irq);
- bfin_gpio_mask_irq(irq);
+ bfin_gpio_mask_irq(d);
__clear_bit(gpionr, gpio_enabled);
bfin_gpio_irq_free(gpionr);
}
-static int bfin_gpio_irq_type(unsigned int irq, unsigned int type)
+static int bfin_gpio_irq_type(struct irq_data *d, unsigned int type)
{
+ unsigned int irq = d->irq;
int ret;
char buf[16];
u32 gpionr = irq_to_gpio(irq);
@@ -961,10 +977,10 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type)
u32 pint_saved_masks[NR_PINT_SYS_IRQS];
u32 pint_wakeup_masks[NR_PINT_SYS_IRQS];
-int bfin_gpio_set_wake(unsigned int irq, unsigned int state)
+int bfin_gpio_set_wake(struct irq_data *d, unsigned int state)
{
u32 pint_irq;
- u32 pint_val = irq2pint_lut[irq - SYS_IRQS];
+ u32 pint_val = irq2pint_lut[d->irq - SYS_IRQS];
u32 bank = PINT_2_BANK(pint_val);
u32 pintbit = PINT_BIT(pint_val);
@@ -1066,17 +1082,17 @@ static void bfin_demux_gpio_irq(unsigned int inta_irq,
static struct irq_chip bfin_gpio_irqchip = {
.name = "GPIO",
- .ack = bfin_gpio_ack_irq,
- .mask = bfin_gpio_mask_irq,
- .mask_ack = bfin_gpio_mask_ack_irq,
- .unmask = bfin_gpio_unmask_irq,
- .disable = bfin_gpio_mask_irq,
- .enable = bfin_gpio_unmask_irq,
- .set_type = bfin_gpio_irq_type,
- .startup = bfin_gpio_irq_startup,
- .shutdown = bfin_gpio_irq_shutdown,
+ .irq_ack = bfin_gpio_ack_irq,
+ .irq_mask = bfin_gpio_mask_irq,
+ .irq_mask_ack = bfin_gpio_mask_ack_irq,
+ .irq_unmask = bfin_gpio_unmask_irq,
+ .irq_disable = bfin_gpio_mask_irq,
+ .irq_enable = bfin_gpio_unmask_irq,
+ .irq_set_type = bfin_gpio_irq_type,
+ .irq_startup = bfin_gpio_irq_startup,
+ .irq_shutdown = bfin_gpio_irq_shutdown,
#ifdef CONFIG_PM
- .set_wake = bfin_gpio_set_wake,
+ .irq_set_wake = bfin_gpio_set_wake,
#endif
};
@@ -1147,9 +1163,9 @@ int __init init_arch_irq(void)
for (irq = 0; irq <= SYS_IRQS; irq++) {
if (irq <= IRQ_CORETMR)
- set_irq_chip(irq, &bfin_core_irqchip);
+ irq_set_chip(irq, &bfin_core_irqchip);
else
- set_irq_chip(irq, &bfin_internal_irqchip);
+ irq_set_chip(irq, &bfin_internal_irqchip);
switch (irq) {
#if defined(CONFIG_BF53x)
@@ -1173,50 +1189,50 @@ int __init init_arch_irq(void)
#elif defined(CONFIG_BF538) || defined(CONFIG_BF539)
case IRQ_PORTF_INTA:
#endif
- set_irq_chained_handler(irq,
- bfin_demux_gpio_irq);
+ irq_set_chained_handler(irq, bfin_demux_gpio_irq);
break;
#ifdef BF537_GENERIC_ERROR_INT_DEMUX
case IRQ_GENERIC_ERROR:
- set_irq_chained_handler(irq, bfin_demux_error_irq);
+ irq_set_chained_handler(irq, bfin_demux_error_irq);
break;
#endif
#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
case IRQ_MAC_ERROR:
- set_irq_chained_handler(irq, bfin_demux_mac_status_irq);
+ irq_set_chained_handler(irq,
+ bfin_demux_mac_status_irq);
break;
#endif
#ifdef CONFIG_SMP
case IRQ_SUPPLE_0:
case IRQ_SUPPLE_1:
- set_irq_handler(irq, handle_percpu_irq);
+ irq_set_handler(irq, handle_percpu_irq);
break;
#endif
#ifdef CONFIG_TICKSOURCE_CORETMR
case IRQ_CORETMR:
# ifdef CONFIG_SMP
- set_irq_handler(irq, handle_percpu_irq);
+ irq_set_handler(irq, handle_percpu_irq);
break;
# else
- set_irq_handler(irq, handle_simple_irq);
+ irq_set_handler(irq, handle_simple_irq);
break;
# endif
#endif
#ifdef CONFIG_TICKSOURCE_GPTMR0
case IRQ_TIMER0:
- set_irq_handler(irq, handle_simple_irq);
+ irq_set_handler(irq, handle_simple_irq);
break;
#endif
#ifdef CONFIG_IPIPE
default:
- set_irq_handler(irq, handle_level_irq);
+ irq_set_handler(irq, handle_level_irq);
break;
#else /* !CONFIG_IPIPE */
default:
- set_irq_handler(irq, handle_simple_irq);
+ irq_set_handler(irq, handle_simple_irq);
break;
#endif /* !CONFIG_IPIPE */
}
@@ -1224,22 +1240,22 @@ int __init init_arch_irq(void)
#ifdef BF537_GENERIC_ERROR_INT_DEMUX
for (irq = IRQ_PPI_ERROR; irq <= IRQ_UART1_ERROR; irq++)
- set_irq_chip_and_handler(irq, &bfin_generic_error_irqchip,
+ irq_set_chip_and_handler(irq, &bfin_generic_error_irqchip,
handle_level_irq);
#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
- set_irq_chained_handler(IRQ_MAC_ERROR, bfin_demux_mac_status_irq);
+ irq_set_chained_handler(IRQ_MAC_ERROR, bfin_demux_mac_status_irq);
#endif
#endif
#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
for (irq = IRQ_MAC_PHYINT; irq <= IRQ_MAC_STMDONE; irq++)
- set_irq_chip_and_handler(irq, &bfin_mac_status_irqchip,
+ irq_set_chip_and_handler(irq, &bfin_mac_status_irqchip,
handle_level_irq);
#endif
/* if configured as edge, then will be changed to do_edge_IRQ */
for (irq = GPIO_IRQ_BASE;
irq < (GPIO_IRQ_BASE + MAX_BLACKFIN_GPIOS); irq++)
- set_irq_chip_and_handler(irq, &bfin_gpio_irqchip,
+ irq_set_chip_and_handler(irq, &bfin_gpio_irqchip,
handle_level_irq);
bfin_write_IMASK(0);
@@ -1373,7 +1389,7 @@ asmlinkage int __ipipe_grab_irq(int vec, struct pt_regs *regs)
struct ipipe_domain *this_domain = __ipipe_current_domain;
struct ivgx *ivg_stop = ivg7_13[vec-IVG7].istop;
struct ivgx *ivg = ivg7_13[vec-IVG7].ifirst;
- int irq, s;
+ int irq, s = 0;
if (likely(vec == EVT_IVTMR_P))
irq = IRQ_CORETMR;
@@ -1423,6 +1439,21 @@ asmlinkage int __ipipe_grab_irq(int vec, struct pt_regs *regs)
__raw_get_cpu_var(__ipipe_tick_regs).ipend |= 0x10;
}
+ /*
+ * We don't want Linux interrupt handlers to run at the
+ * current core priority level (i.e. < EVT15), since this
+ * might delay other interrupts handled by a high priority
+ * domain. Here is what we do instead:
+ *
+ * - we raise the SYNCDEFER bit to prevent
+ * __ipipe_handle_irq() to sync the pipeline for the root
+ * stage for the incoming interrupt. Upon return, that IRQ is
+ * pending in the interrupt log.
+ *
+ * - we raise the TIF_IRQ_SYNC bit for the current thread, so
+ * that _schedule_and_signal_from_int will eventually sync the
+ * pipeline from EVT15.
+ */
if (this_domain == ipipe_root_domain) {
s = __test_and_set_bit(IPIPE_SYNCDEFER_FLAG, &p->status);
barrier();
@@ -1432,6 +1463,24 @@ asmlinkage int __ipipe_grab_irq(int vec, struct pt_regs *regs)
__ipipe_handle_irq(irq, regs);
ipipe_trace_irq_exit(irq);
+ if (user_mode(regs) &&
+ !ipipe_test_foreign_stack() &&
+ (current->ipipe_flags & PF_EVTRET) != 0) {
+ /*
+ * Testing for user_regs() does NOT fully eliminate
+ * foreign stack contexts, because of the forged
+ * interrupt returns we do through
+ * __ipipe_call_irqtail. In that case, we might have
+ * preempted a foreign stack context in a high
+ * priority domain, with a single interrupt level now
+ * pending after the irqtail unwinding is done. In
+ * which case user_mode() is now true, and the event
+ * gets dispatched spuriously.
+ */
+ current->ipipe_flags &= ~PF_EVTRET;
+ __ipipe_dispatch_event(IPIPE_EVENT_RETURN, regs);
+ }
+
if (this_domain == ipipe_root_domain) {
set_thread_flag(TIF_IRQ_SYNC);
if (!s) {
diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c
index 9f251406a76..8bce5ed031e 100644
--- a/arch/blackfin/mach-common/smp.c
+++ b/arch/blackfin/mach-common/smp.c
@@ -40,6 +40,10 @@
*/
struct corelock_slot corelock __attribute__ ((__section__(".l2.bss")));
+#ifdef CONFIG_ICACHE_FLUSH_L1
+unsigned long blackfin_iflush_l1_entry[NR_CPUS];
+#endif
+
void __cpuinitdata *init_retx_coreb, *init_saved_retx_coreb,
*init_saved_seqstat_coreb, *init_saved_icplb_fault_addr_coreb,
*init_saved_dcplb_fault_addr_coreb;
@@ -108,6 +112,19 @@ static void ipi_flush_icache(void *info)
blackfin_dcache_invalidate_range((unsigned long)fdata,
(unsigned long)fdata + sizeof(*fdata));
+ /* Make sure all write buffers in the data side of the core
+ * are flushed before trying to invalidate the icache. This
+ * needs to be after the data flush and before the icache
+ * flush so that the SSYNC does the right thing in preventing
+ * the instruction prefetcher from hitting things in cached
+ * memory at the wrong time -- it runs much further ahead than
+ * the pipeline.
+ */
+ SSYNC();
+
+ /* ipi_flaush_icache is invoked by generic flush_icache_range,
+ * so call blackfin arch icache flush directly here.
+ */
blackfin_icache_flush_range(fdata->start, fdata->end);
}
@@ -244,12 +261,13 @@ int smp_call_function(void (*func)(void *info), void *info, int wait)
{
cpumask_t callmap;
+ preempt_disable();
callmap = cpu_online_map;
cpu_clear(smp_processor_id(), callmap);
- if (cpus_empty(callmap))
- return 0;
+ if (!cpus_empty(callmap))
+ smp_send_message(callmap, BFIN_IPI_CALL_FUNC, func, info, wait);
- smp_send_message(callmap, BFIN_IPI_CALL_FUNC, func, info, wait);
+ preempt_enable();
return 0;
}
@@ -286,12 +304,13 @@ void smp_send_stop(void)
{
cpumask_t callmap;
+ preempt_disable();
callmap = cpu_online_map;
cpu_clear(smp_processor_id(), callmap);
- if (cpus_empty(callmap))
- return;
+ if (!cpus_empty(callmap))
+ smp_send_message(callmap, BFIN_IPI_CPU_STOP, NULL, NULL, 0);
- smp_send_message(callmap, BFIN_IPI_CPU_STOP, NULL, NULL, 0);
+ preempt_enable();
return;
}
@@ -361,8 +380,6 @@ void __cpuinit secondary_start_kernel(void)
*/
init_exception_vectors();
- bfin_setup_caches(cpu);
-
local_irq_disable();
/* Attach the new idle task to the global mm. */
@@ -381,6 +398,8 @@ void __cpuinit secondary_start_kernel(void)
local_irq_enable();
+ bfin_setup_caches(cpu);
+
/*
* Calibrate loops per jiffy value.
* IRQs need to be enabled here - D-cache can be invalidated