summaryrefslogtreecommitdiffstats
path: root/arch/blackfin/include/asm
diff options
context:
space:
mode:
Diffstat (limited to 'arch/blackfin/include/asm')
-rw-r--r--arch/blackfin/include/asm/atomic.h18
-rw-r--r--arch/blackfin/include/asm/bfin-global.h11
-rw-r--r--arch/blackfin/include/asm/bitops.h3
-rw-r--r--arch/blackfin/include/asm/bitsperlong.h1
-rw-r--r--arch/blackfin/include/asm/bug.h57
-rw-r--r--arch/blackfin/include/asm/cache.h11
-rw-r--r--arch/blackfin/include/asm/cacheflush.h43
-rw-r--r--arch/blackfin/include/asm/cplb.h35
-rw-r--r--arch/blackfin/include/asm/cpu.h1
-rw-r--r--arch/blackfin/include/asm/dma.h10
-rw-r--r--arch/blackfin/include/asm/elf.h84
-rw-r--r--arch/blackfin/include/asm/entry.h92
-rw-r--r--arch/blackfin/include/asm/ftrace.h14
-rw-r--r--arch/blackfin/include/asm/gptimers.h43
-rw-r--r--arch/blackfin/include/asm/io.h29
-rw-r--r--arch/blackfin/include/asm/ipipe.h26
-rw-r--r--arch/blackfin/include/asm/irq.h271
-rw-r--r--arch/blackfin/include/asm/irqflags.h63
-rw-r--r--arch/blackfin/include/asm/mutex-dec.h112
-rw-r--r--arch/blackfin/include/asm/page.h2
-rw-r--r--arch/blackfin/include/asm/pda.h2
-rw-r--r--arch/blackfin/include/asm/processor.h4
-rw-r--r--arch/blackfin/include/asm/sections.h11
-rw-r--r--arch/blackfin/include/asm/signal.h2
-rw-r--r--arch/blackfin/include/asm/system.h4
-rw-r--r--arch/blackfin/include/asm/time.h1
-rw-r--r--arch/blackfin/include/asm/uaccess.h32
-rw-r--r--arch/blackfin/include/asm/unistd.h3
28 files changed, 434 insertions, 551 deletions
diff --git a/arch/blackfin/include/asm/atomic.h b/arch/blackfin/include/asm/atomic.h
index 94b2a9b19451..b1d92f13ef96 100644
--- a/arch/blackfin/include/asm/atomic.h
+++ b/arch/blackfin/include/asm/atomic.h
@@ -90,7 +90,7 @@ static inline int atomic_test_mask(int mask, atomic_t *v)
static inline void atomic_add(int i, atomic_t *v)
{
- long flags;
+ unsigned long flags;
local_irq_save_hw(flags);
v->counter += i;
@@ -99,7 +99,7 @@ static inline void atomic_add(int i, atomic_t *v)
static inline void atomic_sub(int i, atomic_t *v)
{
- long flags;
+ unsigned long flags;
local_irq_save_hw(flags);
v->counter -= i;
@@ -110,7 +110,7 @@ static inline void atomic_sub(int i, atomic_t *v)
static inline int atomic_add_return(int i, atomic_t *v)
{
int __temp = 0;
- long flags;
+ unsigned long flags;
local_irq_save_hw(flags);
v->counter += i;
@@ -124,7 +124,7 @@ static inline int atomic_add_return(int i, atomic_t *v)
static inline int atomic_sub_return(int i, atomic_t *v)
{
int __temp = 0;
- long flags;
+ unsigned long flags;
local_irq_save_hw(flags);
v->counter -= i;
@@ -136,7 +136,7 @@ static inline int atomic_sub_return(int i, atomic_t *v)
static inline void atomic_inc(volatile atomic_t *v)
{
- long flags;
+ unsigned long flags;
local_irq_save_hw(flags);
v->counter++;
@@ -145,7 +145,7 @@ static inline void atomic_inc(volatile atomic_t *v)
static inline void atomic_dec(volatile atomic_t *v)
{
- long flags;
+ unsigned long flags;
local_irq_save_hw(flags);
v->counter--;
@@ -154,7 +154,7 @@ static inline void atomic_dec(volatile atomic_t *v)
static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
{
- long flags;
+ unsigned long flags;
local_irq_save_hw(flags);
v->counter &= ~mask;
@@ -163,7 +163,7 @@ static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
{
- long flags;
+ unsigned long flags;
local_irq_save_hw(flags);
v->counter |= mask;
@@ -208,6 +208,6 @@ static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
#define atomic_sub_and_test(i,v) (atomic_sub_return((i), (v)) == 0)
#define atomic_dec_and_test(v) (atomic_sub_return(1, (v)) == 0)
-#include <asm-generic/atomic.h>
+#include <asm-generic/atomic-long.h>
#endif /* __ARCH_BLACKFIN_ATOMIC __ */
diff --git a/arch/blackfin/include/asm/bfin-global.h b/arch/blackfin/include/asm/bfin-global.h
index daffc0684e75..e39277ea43e8 100644
--- a/arch/blackfin/include/asm/bfin-global.h
+++ b/arch/blackfin/include/asm/bfin-global.h
@@ -31,7 +31,7 @@
#ifndef __ASSEMBLY__
-#include <asm-generic/sections.h>
+#include <asm/sections.h>
#include <asm/ptrace.h>
#include <asm/user.h>
#include <linux/linkage.h>
@@ -99,15 +99,6 @@ extern const char bfin_board_name[];
extern unsigned long bfin_sic_iwr[];
extern unsigned vr_wakeup;
extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */
-extern unsigned long _ramstart, _ramend, _rambase;
-extern unsigned long memory_start, memory_end, physical_mem_end;
-extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[],
- _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _sbss_b_l1[], _ebss_b_l1[],
- _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[],
- _ebss_l2[], _l2_lma_start[];
-
-/* only used when MTD_UCLINUX */
-extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size;
#ifdef CONFIG_BFIN_ICACHE_LOCK
extern void cache_grab_lock(int way);
diff --git a/arch/blackfin/include/asm/bitops.h b/arch/blackfin/include/asm/bitops.h
index 21b036eadab1..75fee2f7d9f2 100644
--- a/arch/blackfin/include/asm/bitops.h
+++ b/arch/blackfin/include/asm/bitops.h
@@ -109,7 +109,8 @@ static inline void clear_bit(int nr, volatile unsigned long *addr)
static inline void change_bit(int nr, volatile unsigned long *addr)
{
- int mask, flags;
+ int mask;
+ unsigned long flags;
unsigned long *ADDR = (unsigned long *)addr;
ADDR += nr >> 5;
diff --git a/arch/blackfin/include/asm/bitsperlong.h b/arch/blackfin/include/asm/bitsperlong.h
new file mode 100644
index 000000000000..6dc0bb0c13b2
--- /dev/null
+++ b/arch/blackfin/include/asm/bitsperlong.h
@@ -0,0 +1 @@
+#include <asm-generic/bitsperlong.h>
diff --git a/arch/blackfin/include/asm/bug.h b/arch/blackfin/include/asm/bug.h
index 6d3e11b1fc57..655e49540e41 100644
--- a/arch/blackfin/include/asm/bug.h
+++ b/arch/blackfin/include/asm/bug.h
@@ -2,13 +2,58 @@
#define _BLACKFIN_BUG_H
#ifdef CONFIG_BUG
-#define HAVE_ARCH_BUG
-#define BUG() do { \
- dump_bfin_trace_buffer(); \
- printk(KERN_EMERG "BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
- panic("BUG!"); \
-} while (0)
+#define BFIN_BUG_OPCODE 0xefcd
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+
+#define _BUG_OR_WARN(flags) \
+ asm volatile( \
+ "1: .hword %0\n" \
+ " .section __bug_table,\"a\",@progbits\n" \
+ "2: .long 1b\n" \
+ " .long %1\n" \
+ " .short %2\n" \
+ " .short %3\n" \
+ " .org 2b + %4\n" \
+ " .previous" \
+ : \
+ : "i"(BFIN_BUG_OPCODE), "i"(__FILE__), \
+ "i"(__LINE__), "i"(flags), \
+ "i"(sizeof(struct bug_entry)))
+
+#else
+
+#define _BUG_OR_WARN(flags) \
+ asm volatile( \
+ "1: .hword %0\n" \
+ " .section __bug_table,\"a\",@progbits\n" \
+ "2: .long 1b\n" \
+ " .short %1\n" \
+ " .org 2b + %2\n" \
+ " .previous" \
+ : \
+ : "i"(BFIN_BUG_OPCODE), "i"(flags), \
+ "i"(sizeof(struct bug_entry)))
+
+#endif /* CONFIG_DEBUG_BUGVERBOSE */
+
+#define BUG() \
+ do { \
+ _BUG_OR_WARN(0); \
+ for (;;); \
+ } while (0)
+
+#define WARN_ON(condition) \
+ ({ \
+ int __ret_warn_on = !!(condition); \
+ if (unlikely(__ret_warn_on)) \
+ _BUG_OR_WARN(BUGFLAG_WARNING); \
+ unlikely(__ret_warn_on); \
+ })
+
+#define HAVE_ARCH_BUG
+#define HAVE_ARCH_WARN_ON
#endif
diff --git a/arch/blackfin/include/asm/cache.h b/arch/blackfin/include/asm/cache.h
index 86637814cf25..2ef669ed9222 100644
--- a/arch/blackfin/include/asm/cache.h
+++ b/arch/blackfin/include/asm/cache.h
@@ -34,9 +34,13 @@
#define L1_CACHE_SHIFT_MAX 5
#if defined(CONFIG_SMP) && \
- !defined(CONFIG_BFIN_CACHE_COHERENT) && \
- defined(CONFIG_BFIN_DCACHE)
-#define __ARCH_SYNC_CORE_DCACHE
+ !defined(CONFIG_BFIN_CACHE_COHERENT)
+# if defined(CONFIG_BFIN_ICACHE)
+# define __ARCH_SYNC_CORE_ICACHE
+# endif
+# if defined(CONFIG_BFIN_DCACHE)
+# define __ARCH_SYNC_CORE_DCACHE
+# endif
#ifndef __ASSEMBLY__
asmlinkage void __raw_smp_mark_barrier_asm(void);
asmlinkage void __raw_smp_check_barrier_asm(void);
@@ -51,6 +55,7 @@ static inline void smp_check_barrier(void)
}
void resync_core_dcache(void);
+void resync_core_icache(void);
#endif
#endif
diff --git a/arch/blackfin/include/asm/cacheflush.h b/arch/blackfin/include/asm/cacheflush.h
index 1b040f5b4feb..5c17dee53b5d 100644
--- a/arch/blackfin/include/asm/cacheflush.h
+++ b/arch/blackfin/include/asm/cacheflush.h
@@ -30,12 +30,14 @@
#ifndef _BLACKFIN_CACHEFLUSH_H
#define _BLACKFIN_CACHEFLUSH_H
-extern void blackfin_icache_dcache_flush_range(unsigned long start_address, unsigned long end_address);
+#include <asm/blackfin.h> /* for SSYNC() */
+
extern void blackfin_icache_flush_range(unsigned long start_address, unsigned long end_address);
extern void blackfin_dcache_flush_range(unsigned long start_address, unsigned long end_address);
extern void blackfin_dcache_invalidate_range(unsigned long start_address, unsigned long end_address);
extern void blackfin_dflush_page(void *page);
extern void blackfin_invalidate_entire_dcache(void);
+extern void blackfin_invalidate_entire_icache(void);
#define flush_dcache_mmap_lock(mapping) do { } while (0)
#define flush_dcache_mmap_unlock(mapping) do { } while (0)
@@ -54,32 +56,28 @@ extern void blackfin_invalidate_entire_dcache(void);
static inline void flush_icache_range(unsigned start, unsigned end)
{
-#if defined(CONFIG_BFIN_DCACHE) && defined(CONFIG_BFIN_ICACHE)
-
-# if defined(CONFIG_BFIN_WT)
- blackfin_icache_flush_range((start), (end));
- flush_icache_range_others(start, end);
-# else
- blackfin_icache_dcache_flush_range((start), (end));
-# endif
-
-#else
+#if defined(CONFIG_BFIN_WB)
+ blackfin_dcache_flush_range(start, end);
+#endif
-# if defined(CONFIG_BFIN_ICACHE)
- blackfin_icache_flush_range((start), (end));
+ /* 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();
+#if defined(CONFIG_BFIN_ICACHE)
+ blackfin_icache_flush_range(start, end);
flush_icache_range_others(start, end);
-# endif
-# if defined(CONFIG_BFIN_DCACHE)
- blackfin_dcache_flush_range((start), (end));
-# endif
-
#endif
}
#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
do { memcpy(dst, src, len); \
flush_icache_range((unsigned) (dst), (unsigned) (dst) + (len)); \
- flush_icache_range_others((unsigned long) (dst), (unsigned long) (dst) + (len));\
} while (0)
#define copy_from_user_page(vma, page, vaddr, dst, src, len) memcpy(dst, src, len)
@@ -100,7 +98,7 @@ do { memcpy(dst, src, len); \
extern unsigned long reserved_mem_dcache_on;
extern unsigned long reserved_mem_icache_on;
-static inline int bfin_addr_dcachable(unsigned long addr)
+static inline int bfin_addr_dcacheable(unsigned long addr)
{
#ifdef CONFIG_BFIN_DCACHE
if (addr < (_ramend - DMA_UNCACHED_REGION))
@@ -111,6 +109,11 @@ static inline int bfin_addr_dcachable(unsigned long addr)
addr >= _ramend && addr < physical_mem_end)
return 1;
+#ifndef CONFIG_BFIN_L2_NOT_CACHED
+ if (addr >= L2_START && addr < L2_START + L2_LENGTH)
+ return 1;
+#endif
+
return 0;
}
diff --git a/arch/blackfin/include/asm/cplb.h b/arch/blackfin/include/asm/cplb.h
index ad566ff9ad16..a75a6a9f0949 100644
--- a/arch/blackfin/include/asm/cplb.h
+++ b/arch/blackfin/include/asm/cplb.h
@@ -53,29 +53,32 @@
#define SDRAM_DGENERIC (CPLB_L1_CHBL | CPLB_WT | CPLB_L1_AOW | CPLB_COMMON)
#endif
+#define SDRAM_DNON_CHBL (CPLB_COMMON)
+#define SDRAM_EBIU (CPLB_COMMON)
+#define SDRAM_OOPS (CPLB_VALID | ANOMALY_05000158_WORKAROUND | CPLB_LOCK | CPLB_DIRTY)
+
#define L1_DMEMORY (CPLB_LOCK | CPLB_COMMON)
#ifdef CONFIG_SMP
-#define L2_ATTR (INITIAL_T | I_CPLB | D_CPLB)
-#define L2_IMEMORY (CPLB_COMMON | CPLB_LOCK)
-#define L2_DMEMORY (CPLB_COMMON | CPLB_LOCK)
+#define L2_ATTR (INITIAL_T | I_CPLB | D_CPLB)
+#define L2_IMEMORY (CPLB_COMMON)
+#define L2_DMEMORY (CPLB_LOCK | CPLB_COMMON)
#else
-#ifdef CONFIG_BFIN_L2_CACHEABLE
-#define L2_IMEMORY (SDRAM_IGENERIC)
-#define L2_DMEMORY (SDRAM_DGENERIC)
-#else
-#define L2_IMEMORY (CPLB_COMMON)
-#define L2_DMEMORY (CPLB_COMMON)
-#endif /* CONFIG_BFIN_L2_CACHEABLE */
-
-#define L2_ATTR (INITIAL_T | SWITCH_T | I_CPLB | D_CPLB)
+#define L2_ATTR (INITIAL_T | SWITCH_T | I_CPLB | D_CPLB)
+#define L2_IMEMORY (SDRAM_IGENERIC)
+
+# if defined(CONFIG_BFIN_L2_WB)
+# define L2_DMEMORY (CPLB_L1_CHBL | CPLB_COMMON)
+# elif defined(CONFIG_BFIN_L2_WT)
+# define L2_DMEMORY (CPLB_L1_CHBL | CPLB_WT | CPLB_L1_AOW | CPLB_COMMON)
+# elif defined(CONFIG_BFIN_L2_NOT_CACHED)
+# define L2_DMEMORY (CPLB_COMMON)
+# else
+# define L2_DMEMORY (0)
+# endif
#endif /* CONFIG_SMP */
-#define SDRAM_DNON_CHBL (CPLB_COMMON)
-#define SDRAM_EBIU (CPLB_COMMON)
-#define SDRAM_OOPS (CPLB_VALID | ANOMALY_05000158_WORKAROUND | CPLB_LOCK | CPLB_DIRTY)
-
#define SIZE_1K 0x00000400 /* 1K */
#define SIZE_4K 0x00001000 /* 4K */
#define SIZE_1M 0x00100000 /* 1M */
diff --git a/arch/blackfin/include/asm/cpu.h b/arch/blackfin/include/asm/cpu.h
index c2594ef877f6..565b8136855e 100644
--- a/arch/blackfin/include/asm/cpu.h
+++ b/arch/blackfin/include/asm/cpu.h
@@ -34,6 +34,7 @@ struct blackfin_cpudata {
unsigned int dmemctl;
unsigned long loops_per_jiffy;
unsigned long dcache_invld_count;
+ unsigned long icache_invld_count;
};
DECLARE_PER_CPU(struct blackfin_cpudata, cpu_data);
diff --git a/arch/blackfin/include/asm/dma.h b/arch/blackfin/include/asm/dma.h
index e4f7b8043f02..c9a59622e23f 100644
--- a/arch/blackfin/include/asm/dma.h
+++ b/arch/blackfin/include/asm/dma.h
@@ -206,10 +206,16 @@ static inline unsigned long get_dma_curr_addr(unsigned int channel)
static inline void set_dma_sg(unsigned int channel, struct dmasg *sg, int ndsize)
{
+ /* Make sure the internal data buffers in the core are drained
+ * so that the DMA descriptors are completely written when the
+ * DMA engine goes to fetch them below.
+ */
+ SSYNC();
+
+ dma_ch[channel].regs->next_desc_ptr = sg;
dma_ch[channel].regs->cfg =
(dma_ch[channel].regs->cfg & ~(0xf << 8)) |
((ndsize & 0xf) << 8);
- dma_ch[channel].regs->next_desc_ptr = sg;
}
static inline int dma_channel_active(unsigned int channel)
@@ -253,5 +259,7 @@ static inline void clear_dma_irqstat(unsigned int channel)
void *dma_memcpy(void *dest, const void *src, size_t count);
void *safe_dma_memcpy(void *dest, const void *src, size_t count);
void blackfin_dma_early_init(void);
+void early_dma_memcpy(void *dest, const void *src, size_t count);
+void early_dma_memcpy_done(void);
#endif
diff --git a/arch/blackfin/include/asm/elf.h b/arch/blackfin/include/asm/elf.h
index cdbfcfc30f6a..230e1605d3fb 100644
--- a/arch/blackfin/include/asm/elf.h
+++ b/arch/blackfin/include/asm/elf.h
@@ -55,50 +55,50 @@ do { \
#define ELF_FDPIC_CORE_EFLAGS EF_BFIN_FDPIC
#define ELF_EXEC_PAGESIZE 4096
-#define R_unused0 0 /* relocation type 0 is not defined */
-#define R_pcrel5m2 1 /*LSETUP part a */
-#define R_unused1 2 /* relocation type 2 is not defined */
-#define R_pcrel10 3 /* type 3, if cc jump <target> */
-#define R_pcrel12_jump 4 /* type 4, jump <target> */
-#define R_rimm16 5 /* type 0x5, rN = <target> */
-#define R_luimm16 6 /* # 0x6, preg.l=<target> Load imm 16 to lower half */
-#define R_huimm16 7 /* # 0x7, preg.h=<target> Load imm 16 to upper half */
-#define R_pcrel12_jump_s 8 /* # 0x8 jump.s <target> */
-#define R_pcrel24_jump_x 9 /* # 0x9 jump.x <target> */
-#define R_pcrel24 10 /* # 0xa call <target> , not expandable */
-#define R_unusedb 11 /* # 0xb not generated */
-#define R_unusedc 12 /* # 0xc not used */
-#define R_pcrel24_jump_l 13 /*0xd jump.l <target> */
-#define R_pcrel24_call_x 14 /* 0xE, call.x <target> if <target> is above 24 bit limit call through P1 */
-#define R_var_eq_symb 15 /* 0xf, linker should treat it same as 0x12 */
-#define R_byte_data 16 /* 0x10, .byte var = symbol */
-#define R_byte2_data 17 /* 0x11, .byte2 var = symbol */
-#define R_byte4_data 18 /* 0x12, .byte4 var = symbol and .var var=symbol */
-#define R_pcrel11 19 /* 0x13, lsetup part b */
-#define R_unused14 20 /* 0x14, undefined */
-#define R_unused15 21 /* not generated by VDSP 3.5 */
+#define R_BFIN_UNUSED0 0 /* relocation type 0 is not defined */
+#define R_BFIN_PCREL5M2 1 /* LSETUP part a */
+#define R_BFIN_UNUSED1 2 /* relocation type 2 is not defined */
+#define R_BFIN_PCREL10 3 /* type 3, if cc jump <target> */
+#define R_BFIN_PCREL12_JUMP 4 /* type 4, jump <target> */
+#define R_BFIN_RIMM16 5 /* type 0x5, rN = <target> */
+#define R_BFIN_LUIMM16 6 /* # 0x6, preg.l=<target> Load imm 16 to lower half */
+#define R_BFIN_HUIMM16 7 /* # 0x7, preg.h=<target> Load imm 16 to upper half */
+#define R_BFIN_PCREL12_JUMP_S 8 /* # 0x8 jump.s <target> */
+#define R_BFIN_PCREL24_JUMP_X 9 /* # 0x9 jump.x <target> */
+#define R_BFIN_PCREL24 10 /* # 0xa call <target> , not expandable */
+#define R_BFIN_UNUSEDB 11 /* # 0xb not generated */
+#define R_BFIN_UNUSEDC 12 /* # 0xc not used */
+#define R_BFIN_PCREL24_JUMP_L 13 /* 0xd jump.l <target> */
+#define R_BFIN_PCREL24_CALL_X 14 /* 0xE, call.x <target> if <target> is above 24 bit limit call through P1 */
+#define R_BFIN_VAR_EQ_SYMB 15 /* 0xf, linker should treat it same as 0x12 */
+#define R_BFIN_BYTE_DATA 16 /* 0x10, .byte var = symbol */
+#define R_BFIN_BYTE2_DATA 17 /* 0x11, .byte2 var = symbol */
+#define R_BFIN_BYTE4_DATA 18 /* 0x12, .byte4 var = symbol and .var var=symbol */
+#define R_BFIN_PCREL11 19 /* 0x13, lsetup part b */
+#define R_BFIN_UNUSED14 20 /* 0x14, undefined */
+#define R_BFIN_UNUSED15 21 /* not generated by VDSP 3.5 */
/* arithmetic relocations */
-#define R_push 0xE0
-#define R_const 0xE1
-#define R_add 0xE2
-#define R_sub 0xE3
-#define R_mult 0xE4
-#define R_div 0xE5
-#define R_mod 0xE6
-#define R_lshift 0xE7
-#define R_rshift 0xE8
-#define R_and 0xE9
-#define R_or 0xEA
-#define R_xor 0xEB
-#define R_land 0xEC
-#define R_lor 0xED
-#define R_len 0xEE
-#define R_neg 0xEF
-#define R_comp 0xF0
-#define R_page 0xF1
-#define R_hwpage 0xF2
-#define R_addr 0xF3
+#define R_BFIN_PUSH 0xE0
+#define R_BFIN_CONST 0xE1
+#define R_BFIN_ADD 0xE2
+#define R_BFIN_SUB 0xE3
+#define R_BFIN_MULT 0xE4
+#define R_BFIN_DIV 0xE5
+#define R_BFIN_MOD 0xE6
+#define R_BFIN_LSHIFT 0xE7
+#define R_BFIN_RSHIFT 0xE8
+#define R_BFIN_AND 0xE9
+#define R_BFIN_OR 0xEA
+#define R_BFIN_XOR 0xEB
+#define R_BFIN_LAND 0xEC
+#define R_BFIN_LOR 0xED
+#define R_BFIN_LEN 0xEE
+#define R_BFIN_NEG 0xEF
+#define R_BFIN_COMP 0xF0
+#define R_BFIN_PAGE 0xF1
+#define R_BFIN_HWPAGE 0xF2
+#define R_BFIN_ADDR 0xF3
/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
use of this is to invoke "./ld.so someprog" to test out a new version of
diff --git a/arch/blackfin/include/asm/entry.h b/arch/blackfin/include/asm/entry.h
index b30a2968e274..ec58efc130e6 100644
--- a/arch/blackfin/include/asm/entry.h
+++ b/arch/blackfin/include/asm/entry.h
@@ -35,21 +35,39 @@
#else
# define LOAD_IPIPE_IPEND
#endif
+
+#ifndef CONFIG_EXACT_HWERR
+/* As a debugging aid - we save IPEND when DEBUG_KERNEL is on,
+ * otherwise it is a waste of cycles.
+ */
+# ifndef CONFIG_DEBUG_KERNEL
+#define INTERRUPT_ENTRY(N) \
+ [--sp] = SYSCFG; \
+ [--sp] = P0; /*orig_p0*/ \
+ [--sp] = R0; /*orig_r0*/ \
+ [--sp] = (R7:0,P5:0); \
+ R0 = (N); \
+ LOAD_IPIPE_IPEND \
+ jump __common_int_entry;
+# else /* CONFIG_DEBUG_KERNEL */
#define INTERRUPT_ENTRY(N) \
[--sp] = SYSCFG; \
- \
[--sp] = P0; /*orig_p0*/ \
[--sp] = R0; /*orig_r0*/ \
[--sp] = (R7:0,P5:0); \
+ p0.l = lo(IPEND); \
+ p0.h = hi(IPEND); \
+ r1 = [p0]; \
R0 = (N); \
LOAD_IPIPE_IPEND \
jump __common_int_entry;
+# endif /* CONFIG_DEBUG_KERNEL */
/* For timer interrupts, we need to save IPEND, since the user_mode
- macro accesses it to determine where to account time. */
+ *macro accesses it to determine where to account time.
+ */
#define TIMER_INTERRUPT_ENTRY(N) \
[--sp] = SYSCFG; \
- \
[--sp] = P0; /*orig_p0*/ \
[--sp] = R0; /*orig_r0*/ \
[--sp] = (R7:0,P5:0); \
@@ -58,6 +76,74 @@
r1 = [p0]; \
R0 = (N); \
jump __common_int_entry;
+#else /* CONFIG_EXACT_HWERR is defined */
+
+/* if we want hardware error to be exact, we need to do a SSYNC (which forces
+ * read/writes to complete to the memory controllers), and check to see that
+ * caused a pending HW error condition. If so, we assume it was caused by user
+ * space, by setting the same interrupt that we are in (so it goes off again)
+ * and context restore, and a RTI (without servicing anything). This should
+ * cause the pending HWERR to fire, and when that is done, this interrupt will
+ * be re-serviced properly.
+ * As you can see by the code - we actually need to do two SSYNCS - one to
+ * make sure the read/writes complete, and another to make sure the hardware
+ * error is recognized by the core.
+ */
+#define INTERRUPT_ENTRY(N) \
+ SSYNC; \
+ SSYNC; \
+ [--sp] = SYSCFG; \
+ [--sp] = P0; /*orig_p0*/ \
+ [--sp] = R0; /*orig_r0*/ \
+ [--sp] = (R7:0,P5:0); \
+ R1 = ASTAT; \
+ P0.L = LO(ILAT); \
+ P0.H = HI(ILAT); \
+ R0 = [P0]; \
+ CC = BITTST(R0, EVT_IVHW_P); \
+ IF CC JUMP 1f; \
+ ASTAT = R1; \
+ p0.l = lo(IPEND); \
+ p0.h = hi(IPEND); \
+ r1 = [p0]; \
+ R0 = (N); \
+ LOAD_IPIPE_IPEND \
+ jump __common_int_entry; \
+1: ASTAT = R1; \
+ RAISE N; \
+ (R7:0, P5:0) = [SP++]; \
+ SP += 0x8; \
+ SYSCFG = [SP++]; \
+ CSYNC; \
+ RTI;
+
+#define TIMER_INTERRUPT_ENTRY(N) \
+ SSYNC; \
+ SSYNC; \
+ [--sp] = SYSCFG; \
+ [--sp] = P0; /*orig_p0*/ \
+ [--sp] = R0; /*orig_r0*/ \
+ [--sp] = (R7:0,P5:0); \
+ R1 = ASTAT; \
+ P0.L = LO(ILAT); \
+ P0.H = HI(ILAT); \
+ R0 = [P0]; \
+ CC = BITTST(R0, EVT_IVHW_P); \
+ IF CC JUMP 1f; \
+ ASTAT = R1; \
+ p0.l = lo(IPEND); \
+ p0.h = hi(IPEND); \
+ r1 = [p0]; \
+ R0 = (N); \
+ jump __common_int_entry; \
+1: ASTAT = R1; \
+ RAISE N; \
+ (R7:0, P5:0) = [SP++]; \
+ SP += 0x8; \
+ SYSCFG = [SP++]; \
+ CSYNC; \
+ RTI;
+#endif /* CONFIG_EXACT_HWERR */
/* This one pushes RETI without using CLI. Interrupts are enabled. */
#define SAVE_CONTEXT_SYSCALL save_context_syscall
diff --git a/arch/blackfin/include/asm/ftrace.h b/arch/blackfin/include/asm/ftrace.h
index 40a8c178f10d..8643680f0f78 100644
--- a/arch/blackfin/include/asm/ftrace.h
+++ b/arch/blackfin/include/asm/ftrace.h
@@ -1 +1,13 @@
-/* empty */
+/*
+ * Blackfin ftrace code
+ *
+ * Copyright 2009 Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __ASM_BFIN_FTRACE_H__
+#define __ASM_BFIN_FTRACE_H__
+
+#define MCOUNT_INSN_SIZE 8 /* sizeof mcount call: LINK + CALL */
+
+#endif
diff --git a/arch/blackfin/include/asm/gptimers.h b/arch/blackfin/include/asm/gptimers.h
index b0f847ae4bf4..89f08decb8e0 100644
--- a/arch/blackfin/include/asm/gptimers.h
+++ b/arch/blackfin/include/asm/gptimers.h
@@ -30,6 +30,7 @@
# else
# define MAX_BLACKFIN_GPTIMERS 11
# define TIMER8_GROUP_REG TIMER_ENABLE1
+# define TIMER_GROUP2 1
# endif
# define TIMER0_GROUP_REG TIMER_ENABLE0
#endif
@@ -40,10 +41,12 @@
# define MAX_BLACKFIN_GPTIMERS 12
# define TIMER0_GROUP_REG TMRS8_ENABLE
# define TIMER8_GROUP_REG TMRS4_ENABLE
+# define TIMER_GROUP2 1
#endif
/*
* All others: 3 timers:
*/
+#define TIMER_GROUP1 0
#if !defined(MAX_BLACKFIN_GPTIMERS)
# define MAX_BLACKFIN_GPTIMERS 3
# define TIMER0_GROUP_REG TIMER_ENABLE
@@ -109,8 +112,8 @@
#define TIMER_ERR_PROG_PER 0x8000
#define TIMER_ERR_PROG_PW 0xC000
#define TIMER_EMU_RUN 0x0200
-#define TIMER_TOGGLE_HI 0x0100
-#define TIMER_CLK_SEL 0x0080
+#define TIMER_TOGGLE_HI 0x0100
+#define TIMER_CLK_SEL 0x0080
#define TIMER_OUT_DIS 0x0040
#define TIMER_TIN_SEL 0x0020
#define TIMER_IRQ_ENA 0x0010
@@ -169,23 +172,25 @@
/* The actual gptimer API */
-void set_gptimer_pwidth (int timer_id, uint32_t width);
-uint32_t get_gptimer_pwidth (int timer_id);
-void set_gptimer_period (int timer_id, uint32_t period);
-uint32_t get_gptimer_period (int timer_id);
-uint32_t get_gptimer_count (int timer_id);
-uint16_t get_gptimer_intr (int timer_id);
-void clear_gptimer_intr (int timer_id);
-uint16_t get_gptimer_over (int timer_id);
-void clear_gptimer_over (int timer_id);
-void set_gptimer_config (int timer_id, uint16_t config);
-uint16_t get_gptimer_config (int timer_id);
-void set_gptimer_pulse_hi (int timer_id);
+void set_gptimer_pwidth(int timer_id, uint32_t width);
+uint32_t get_gptimer_pwidth(int timer_id);
+void set_gptimer_period(int timer_id, uint32_t period);
+uint32_t get_gptimer_period(int timer_id);
+uint32_t get_gptimer_count(int timer_id);
+int get_gptimer_intr(int timer_id);
+void clear_gptimer_intr(int timer_id);
+int get_gptimer_over(int timer_id);
+void clear_gptimer_over(int timer_id);
+void set_gptimer_config(int timer_id, uint16_t config);
+uint16_t get_gptimer_config(int timer_id);
+int get_gptimer_run(int timer_id);
+void set_gptimer_pulse_hi(int timer_id);
void clear_gptimer_pulse_hi(int timer_id);
-void enable_gptimers (uint16_t mask);
-void disable_gptimers (uint16_t mask);
-uint16_t get_enabled_gptimers (void);
-uint32_t get_gptimer_status (int group);
-void set_gptimer_status (int group, uint32_t value);
+void enable_gptimers(uint16_t mask);
+void disable_gptimers(uint16_t mask);
+void disable_gptimers_sync(uint16_t mask);
+uint16_t get_enabled_gptimers(void);
+uint32_t get_gptimer_status(int group);
+void set_gptimer_status(int group, uint32_t value);
#endif
diff --git a/arch/blackfin/include/asm/io.h b/arch/blackfin/include/asm/io.h
index 63b2d8c78570..3022b5c96b37 100644
--- a/arch/blackfin/include/asm/io.h
+++ b/arch/blackfin/include/asm/io.h
@@ -80,19 +80,22 @@ static inline unsigned int readl(const volatile void __iomem *addr)
#define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c))
#define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c))
-#define inb(addr) readb(addr)
-#define inw(addr) readw(addr)
-#define inl(addr) readl(addr)
-#define outb(x,addr) ((void) writeb(x,addr))
-#define outw(x,addr) ((void) writew(x,addr))
-#define outl(x,addr) ((void) writel(x,addr))
-
-#define inb_p(addr) inb(addr)
-#define inw_p(addr) inw(addr)
-#define inl_p(addr) inl(addr)
-#define outb_p(x,addr) outb(x,addr)
-#define outw_p(x,addr) outw(x,addr)
-#define outl_p(x,addr) outl(x,addr)
+/* Convert "I/O port addresses" to actual addresses. i.e. ugly casts. */
+#define __io(port) ((void *)(unsigned long)(port))
+
+#define inb(port) readb(__io(port))
+#define inw(port) readw(__io(port))
+#define inl(port) readl(__io(port))
+#define outb(x,port) writeb(x,__io(port))
+#define outw(x,port) writew(x,__io(port))
+#define outl(x,port) writel(x,__io(port))
+
+#define inb_p(port) inb(__io(port))
+#define inw_p(port) inw(__io(port))
+#define inl_p(port) inl(__io(port))
+#define outb_p(x,port) outb(x,__io(port))
+#define outw_p(x,port) outw(x,__io(port))
+#define outl_p(x,port) outl(x,__io(port))
#define ioread8_rep(a,d,c) readsb(a,d,c)
#define ioread16_rep(a,d,c) readsw(a,d,c)
diff --git a/arch/blackfin/include/asm/ipipe.h b/arch/blackfin/include/asm/ipipe.h
index 343b56361ec9..bbe1c3726b69 100644
--- a/arch/blackfin/include/asm/ipipe.h
+++ b/arch/blackfin/include/asm/ipipe.h
@@ -35,9 +35,9 @@
#include <asm/atomic.h>
#include <asm/traps.h>
-#define IPIPE_ARCH_STRING "1.9-00"
+#define IPIPE_ARCH_STRING "1.10-00"
#define IPIPE_MAJOR_NUMBER 1
-#define IPIPE_MINOR_NUMBER 9
+#define IPIPE_MINOR_NUMBER 10
#define IPIPE_PATCH_NUMBER 0
#ifdef CONFIG_SMP
@@ -54,10 +54,11 @@ do { \
#define task_hijacked(p) \
({ \
- int __x__ = ipipe_current_domain != ipipe_root_domain; \
- /* We would need to clear the SYNC flag for the root domain */ \
- /* over the current processor in SMP mode. */ \
- local_irq_enable_hw(); __x__; \
+ int __x__ = __ipipe_root_domain_p; \
+ __clear_bit(IPIPE_SYNC_FLAG, &ipipe_root_cpudom_var(status)); \
+ if (__x__) \
+ local_irq_enable_hw(); \
+ !__x__; \
})
struct ipipe_domain;
@@ -179,23 +180,24 @@ static inline unsigned long __ipipe_ffnz(unsigned long ul)
#define __ipipe_run_isr(ipd, irq) \
do { \
- if (ipd == ipipe_root_domain) { \
+ if (!__ipipe_pipeline_head_p(ipd)) \
local_irq_enable_hw(); \
- if (ipipe_virtual_irq_p(irq)) \
+ if (ipd == ipipe_root_domain) { \
+ if (unlikely(ipipe_virtual_irq_p(irq))) { \
+ irq_enter(); \
ipd->irqs[irq].handler(irq, ipd->irqs[irq].cookie); \
- else \
+ irq_exit(); \
+ } else \
ipd->irqs[irq].handler(irq, &__raw_get_cpu_var(__ipipe_tick_regs)); \
- local_irq_disable_hw(); \
} else { \
__clear_bit(IPIPE_SYNC_FLAG, &ipipe_cpudom_var(ipd, status)); \
- local_irq_enable_nohead(ipd); \
ipd->irqs[irq].handler(irq, ipd->irqs[irq].cookie); \
/* Attempt to exit the outer interrupt level before \
* starting the deferred IRQ processing. */ \
- local_irq_disable_nohead(ipd); \
__ipipe_run_irqtail(); \
__set_bit(IPIPE_SYNC_FLAG, &ipipe_cpudom_var(ipd, status)); \
} \
+ local_irq_disable_hw(); \
} while (0)
#define __ipipe_syscall_watched_p(p, sc) \
diff --git a/arch/blackfin/include/asm/irq.h b/arch/blackfin/include/asm/irq.h
index 7645e85a5f6f..400bdd52ce87 100644
--- a/arch/blackfin/include/asm/irq.h
+++ b/arch/blackfin/include/asm/irq.h
@@ -17,270 +17,17 @@
#ifndef _BFIN_IRQ_H_
#define _BFIN_IRQ_H_
-/* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h>*/
-#include <mach/irq.h>
-#include <asm/pda.h>
-#include <asm/processor.h>
-
-#ifdef CONFIG_SMP
-/* Forward decl needed due to cdef inter dependencies */
-static inline uint32_t __pure bfin_dspid(void);
-# define blackfin_core_id() (bfin_dspid() & 0xff)
-# define bfin_irq_flags cpu_pda[blackfin_core_id()].imask
-#else
-extern unsigned long bfin_irq_flags;
-#endif
-
-#ifdef CONFIG_IPIPE
-
-#include <linux/ipipe_trace.h>
+#include <linux/irqflags.h>
-void __ipipe_unstall_root(void);
-
-void __ipipe_restore_root(unsigned long flags);
-
-#ifdef CONFIG_DEBUG_HWERR
-# define __all_masked_irq_flags 0x3f
-# define __save_and_cli_hw(x) \
- __asm__ __volatile__( \
- "cli %0;" \
- "sti %1;" \
- : "=&d"(x) \
- : "d" (0x3F) \
- )
-#else
-# define __all_masked_irq_flags 0x1f
-# define __save_and_cli_hw(x) \
- __asm__ __volatile__( \
- "cli %0;" \
- : "=&d"(x) \
- )
-#endif
-
-#define irqs_enabled_from_flags_hw(x) ((x) != __all_masked_irq_flags)
-#define raw_irqs_disabled_flags(flags) (!irqs_enabled_from_flags_hw(flags))
-#define local_test_iflag_hw(x) irqs_enabled_from_flags_hw(x)
-
-#define local_save_flags(x) \
- do { \
- (x) = __ipipe_test_root() ? \
- __all_masked_irq_flags : bfin_irq_flags; \
- barrier(); \
- } while (0)
-
-#define local_irq_save(x) \
- do { \
- (x) = __ipipe_test_and_stall_root() ? \
- __all_masked_irq_flags : bfin_irq_flags; \
- barrier(); \
- } while (0)
-
-static inline void local_irq_restore(unsigned long x)
-{
- barrier();
- __ipipe_restore_root(x == __all_masked_irq_flags);
-}
-
-#define local_irq_disable() \
- do { \
- __ipipe_stall_root(); \
- barrier(); \
- } while (0)
-
-static inline void local_irq_enable(void)
-{
- barrier();
- __ipipe_unstall_root();
-}
-
-#define irqs_disabled() __ipipe_test_root()
-
-#define local_save_flags_hw(x) \
- __asm__ __volatile__( \
- "cli %0;" \
- "sti %0;" \
- : "=d"(x) \
- )
-
-#define irqs_disabled_hw() \
- ({ \
- unsigned long flags; \
- local_save_flags_hw(flags); \
- !irqs_enabled_from_flags_hw(flags); \
- })
-
-static inline unsigned long raw_mangle_irq_bits(int virt, unsigned long real)
-{
- /* Merge virtual and real interrupt mask bits into a single
- 32bit word. */
- return (real & ~(1 << 31)) | ((virt != 0) << 31);
-}
-
-static inline int raw_demangle_irq_bits(unsigned long *x)
-{
- int virt = (*x & (1 << 31)) != 0;
- *x &= ~(1L << 31);
- return virt;
-}
-
-#ifdef CONFIG_IPIPE_TRACE_IRQSOFF
-
-#define local_irq_disable_hw() \
- do { \
- int _tmp_dummy; \
- if (!irqs_disabled_hw()) \
- ipipe_trace_begin(0x80000000); \
- __asm__ __volatile__ ("cli %0;" : "=d" (_tmp_dummy) : ); \
- } while (0)
-
-#define local_irq_enable_hw() \
- do { \
- if (irqs_disabled_hw()) \
- ipipe_trace_end(0x80000000); \
- __asm__ __volatile__ ("sti %0;" : : "d"(bfin_irq_flags)); \
- } while (0)
-
-#define local_irq_save_hw(x) \
- do { \
- __save_and_cli_hw(x); \
- if (local_test_iflag_hw(x)) \
- ipipe_trace_begin(0x80000001); \
- } while (0)
-
-#define local_irq_restore_hw(x) \
- do { \
- if (local_test_iflag_hw(x)) { \
- ipipe_trace_end(0x80000001); \
- local_irq_enable_hw_notrace(); \
- } \
- } while (0)
-
-#define local_irq_disable_hw_notrace() \
- do { \
- int _tmp_dummy; \
- __asm__ __volatile__ ("cli %0;" : "=d" (_tmp_dummy) : ); \
- } while (0)
-
-#define local_irq_enable_hw_notrace() \
- __asm__ __volatile__( \
- "sti %0;" \
- : \
- : "d"(bfin_irq_flags) \
- )
-
-#define local_irq_save_hw_notrace(x) __save_and_cli_hw(x)
-
-#define local_irq_restore_hw_notrace(x) \
- do { \
- if (local_test_iflag_hw(x)) \
- local_irq_enable_hw_notrace(); \
- } while (0)
-
-#else /* CONFIG_IPIPE_TRACE_IRQSOFF */
-
-#define local_irq_enable_hw() \
- __asm__ __volatile__( \
- "sti %0;" \
- : \
- : "d"(bfin_irq_flags) \
- )
-
-#define local_irq_disable_hw() \
- do { \
- int _tmp_dummy; \
- __asm__ __volatile__ ( \
- "cli %0;" \
- : "=d" (_tmp_dummy)); \
- } while (0)
-
-#define local_irq_restore_hw(x) \
- do { \
- if (irqs_enabled_from_flags_hw(x)) \
- local_irq_enable_hw(); \
- } while (0)
-
-#define local_irq_save_hw(x) __save_and_cli_hw(x)
-
-#define local_irq_disable_hw_notrace() local_irq_disable_hw()
-#define local_irq_enable_hw_notrace() local_irq_enable_hw()
-#define local_irq_save_hw_notrace(x) local_irq_save_hw(x)
-#define local_irq_restore_hw_notrace(x) local_irq_restore_hw(x)
-
-#endif /* CONFIG_IPIPE_TRACE_IRQSOFF */
-
-#else /* !CONFIG_IPIPE */
-
-/*
- * Interrupt configuring macros.
- */
-#define local_irq_disable() \
- do { \
- int __tmp_dummy; \
- __asm__ __volatile__( \
- "cli %0;" \
- : "=d" (__tmp_dummy) \
- ); \
- } while (0)
-
-#define local_irq_enable() \
- __asm__ __volatile__( \
- "sti %0;" \
- : \
- : "d" (bfin_irq_flags) \
- )
-
-#ifdef CONFIG_DEBUG_HWERR
-# define __save_and_cli(x) \
- __asm__ __volatile__( \
- "cli %0;" \
- "sti %1;" \
- : "=&d" (x) \
- : "d" (0x3F) \
- )
-#else
-# define __save_and_cli(x) \
- __asm__ __volatile__( \
- "cli %0;" \
- : "=&d" (x) \
- )
-#endif
-
-#define local_save_flags(x) \
- __asm__ __volatile__( \
- "cli %0;" \
- "sti %0;" \
- : "=d" (x) \
- )
-
-#ifdef CONFIG_DEBUG_HWERR
-#define irqs_enabled_from_flags(x) (((x) & ~0x3f) != 0)
-#else
-#define irqs_enabled_from_flags(x) ((x) != 0x1f)
-#endif
-
-#define local_irq_restore(x) \
- do { \
- if (irqs_enabled_from_flags(x)) \
- local_irq_enable(); \
- } while (0)
-
-/* For spinlocks etc */
-#define local_irq_save(x) __save_and_cli(x)
-
-#define irqs_disabled() \
-({ \
- unsigned long flags; \
- local_save_flags(flags); \
- !irqs_enabled_from_flags(flags); \
-})
-
-#define local_irq_save_hw(x) local_irq_save(x)
-#define local_irq_restore_hw(x) local_irq_restore(x)
-#define local_irq_enable_hw() local_irq_enable()
-#define local_irq_disable_hw() local_irq_disable()
-#define irqs_disabled_hw() irqs_disabled()
+/* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h> */
+#include <mach/irq.h>
-#endif /* !CONFIG_IPIPE */
+/* Xenomai IPIPE helpers */
+#define local_irq_restore_hw(x) local_irq_restore(x)
+#define local_irq_save_hw(x) local_irq_save(x)
+#define local_irq_enable_hw(x) local_irq_enable(x)
+#define local_irq_disable_hw(x) local_irq_disable(x)
+#define irqs_disabled_hw(x) irqs_disabled(x)
#if ANOMALY_05000244 && defined(CONFIG_BFIN_ICACHE)
# define NOP_PAD_ANOMALY_05000244 "nop; nop;"
diff --git a/arch/blackfin/include/asm/irqflags.h b/arch/blackfin/include/asm/irqflags.h
new file mode 100644
index 000000000000..139cba4651b1
--- /dev/null
+++ b/arch/blackfin/include/asm/irqflags.h
@@ -0,0 +1,63 @@
+/*
+ * interface to Blackfin CEC
+ *
+ * Copyright 2009 Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __ASM_BFIN_IRQFLAGS_H__
+#define __ASM_BFIN_IRQFLAGS_H__
+
+#ifdef CONFIG_SMP
+# include <asm/pda.h>
+# include <asm/processor.h>
+/* Forward decl needed due to cdef inter dependencies */
+static inline uint32_t __pure bfin_dspid(void);
+# define blackfin_core_id() (bfin_dspid() & 0xff)
+# define bfin_irq_flags cpu_pda[blackfin_core_id()].imask
+#else
+extern unsigned long bfin_irq_flags;
+#endif
+
+static inline void bfin_sti(unsigned long flags)
+{
+ asm volatile("sti %0;" : : "d" (flags));
+}
+
+static inline unsigned long bfin_cli(void)
+{
+ unsigned long flags;
+ asm volatile("cli %0;" : "=d" (flags));
+ return flags;
+}
+
+static inline void raw_local_irq_disable(void)
+{
+ bfin_cli();
+}
+static inline void raw_local_irq_enable(void)
+{
+ bfin_sti(bfin_irq_flags);
+}
+
+#define raw_local_save_flags(flags) do { (flags) = bfin_read_IMASK(); } while (0)
+
+#define raw_irqs_disabled_flags(flags) (((flags) & ~0x3f) == 0)
+
+static inline void raw_local_irq_restore(unsigned long flags)
+{
+ if (!raw_irqs_disabled_flags(flags))
+ raw_local_irq_enable();
+}
+
+static inline unsigned long __raw_local_irq_save(void)
+{
+ unsigned long flags = bfin_cli();
+#ifdef CONFIG_DEBUG_HWERR
+ bfin_sti(0x3f);
+#endif
+ return flags;
+}
+#define raw_local_irq_save(flags) do { (flags) = __raw_local_irq_save(); } while (0)
+
+#endif
diff --git a/arch/blackfin/include/asm/mutex-dec.h b/arch/blackfin/include/asm/mutex-dec.h
deleted file mode 100644
index 0134151656af..000000000000
--- a/arch/blackfin/include/asm/mutex-dec.h
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * include/asm-generic/mutex-dec.h
- *
- * Generic implementation of the mutex fastpath, based on atomic
- * decrement/increment.
- */
-#ifndef _ASM_GENERIC_MUTEX_DEC_H
-#define _ASM_GENERIC_MUTEX_DEC_H
-
-/**
- * __mutex_fastpath_lock - try to take the lock by moving the count
- * from 1 to a 0 value
- * @count: pointer of type atomic_t
- * @fail_fn: function to call if the original value was not 1
- *
- * Change the count from 1 to a value lower than 1, and call <fail_fn> if
- * it wasn't 1 originally. This function MUST leave the value lower than
- * 1 even when the "1" assertion wasn't true.
- */
-static inline void
-__mutex_fastpath_lock(atomic_t *count, fastcall void (*fail_fn)(atomic_t *))
-{
- if (unlikely(atomic_dec_return(count) < 0))
- fail_fn(count);
- else
- smp_mb();
-}
-
-/**
- * __mutex_fastpath_lock_retval - try to take the lock by moving the count
- * from 1 to a 0 value
- * @count: pointer of type atomic_t
- * @fail_fn: function to call if the original value was not 1
- *
- * Change the count from 1 to a value lower than 1, and call <fail_fn> if
- * it wasn't 1 originally. This function returns 0 if the fastpath succeeds,
- * or anything the slow path function returns.
- */
-static inline int
-__mutex_fastpath_lock_retval(atomic_t *count, fastcall int (*fail_fn)(atomic_t *))
-{
- if (unlikely(atomic_dec_return(count) < 0))
- return fail_fn(count);
- else {
- smp_mb();
- return 0;
- }
-}
-
-/**
- * __mutex_fastpath_unlock - try to promote the count from 0 to 1
- * @count: pointer of type atomic_t
- * @fail_fn: function to call if the original value was not 0
- *
- * Try to promote the count from 0 to 1. If it wasn't 0, call <fail_fn>.
- * In the failure case, this function is allowed to either set the value to
- * 1, or to set it to a value lower than 1.
- *
- * If the implementation sets it to a value of lower than 1, then the
- * __mutex_slowpath_needs_to_unlock() macro needs to return 1, it needs
- * to return 0 otherwise.
- */
-static inline void
-__mutex_fastpath_unlock(atomic_t *count, fastcall void (*fail_fn)(atomic_t *))
-{
- smp_mb();
- if (unlikely(atomic_inc_return(count) <= 0))
- fail_fn(count);
-}
-
-#define __mutex_slowpath_needs_to_unlock() 1
-
-/**
- * __mutex_fastpath_trylock - try to acquire the mutex, without waiting
- *
- * @count: pointer of type atomic_t
- * @fail_fn: fallback function
- *
- * Change the count from 1 to a value lower than 1, and return 0 (failure)
- * if it wasn't 1 originally, or return 1 (success) otherwise. This function
- * MUST leave the value lower than 1 even when the "1" assertion wasn't true.
- * Additionally, if the value was < 0 originally, this function must not leave
- * it to 0 on failure.
- *
- * If the architecture has no effective trylock variant, it should call the
- * <fail_fn> spinlock-based trylock variant unconditionally.
- */
-static inline int
-__mutex_fastpath_trylock(atomic_t *count, int (*fail_fn)(atomic_t *))
-{
- /*
- * We have two variants here. The cmpxchg based one is the best one
- * because it never induce a false contention state. It is included
- * here because architectures using the inc/dec algorithms over the
- * xchg ones are much more likely to support cmpxchg natively.
- *
- * If not we fall back to the spinlock based variant - that is
- * just as efficient (and simpler) as a 'destructive' probing of
- * the mutex state would be.
- */
-#ifdef __HAVE_ARCH_CMPXCHG
- if (likely(atomic_cmpxchg(count, 1, 0) == 1)) {
- smp_mb();
- return 1;
- }
- return 0;
-#else
- return fail_fn(count);
-#endif
-}
-
-#endif
diff --git a/arch/blackfin/include/asm/page.h b/arch/blackfin/include/asm/page.h
index 344f6a8c1f22..3ea2016a1d4a 100644
--- a/arch/blackfin/include/asm/page.h
+++ b/arch/blackfin/include/asm/page.h
@@ -81,7 +81,7 @@ extern unsigned long memory_end;
#define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
((void *)(kaddr) < (void *)memory_end))
-#include <asm-generic/page.h>
+#include <asm-generic/getorder.h>
#endif /* __ASSEMBLY__ */
diff --git a/arch/blackfin/include/asm/pda.h b/arch/blackfin/include/asm/pda.h
index a67142740df0..b42555c1431c 100644
--- a/arch/blackfin/include/asm/pda.h
+++ b/arch/blackfin/include/asm/pda.h
@@ -64,8 +64,6 @@ struct blackfin_pda { /* Per-processor Data Area */
extern struct blackfin_pda cpu_pda[];
-void reserve_pda(void);
-
#endif /* __ASSEMBLY__ */
#endif /* _ASM_BLACKFIN_PDA_H */
diff --git a/arch/blackfin/include/asm/processor.h b/arch/blackfin/include/asm/processor.h
index 0eece23b41c7..3040415523b2 100644
--- a/arch/blackfin/include/asm/processor.h
+++ b/arch/blackfin/include/asm/processor.h
@@ -131,8 +131,8 @@ unsigned long get_wchan(struct task_struct *p);
/* Get the Silicon Revision of the chip */
static inline uint32_t __pure bfin_revid(void)
{
- /* stored in the upper 4 bits */
- uint32_t revid = bfin_read_CHIPID() >> 28;
+ /* Always use CHIPID, to work around ANOMALY_05000234 */
+ uint32_t revid = (bfin_read_CHIPID() & CHIPID_VERSION) >> 28;
#ifdef CONFIG_BF52x
/* ANOMALY_05000357
diff --git a/arch/blackfin/include/asm/sections.h b/arch/blackfin/include/asm/sections.h
index 1443c3353a8c..e7fd0ecd73f7 100644
--- a/arch/blackfin/include/asm/sections.h
+++ b/arch/blackfin/include/asm/sections.h
@@ -4,4 +4,15 @@
/* nothing to see, move along */
#include <asm-generic/sections.h>
+/* only used when MTD_UCLINUX */
+extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size;
+
+extern unsigned long _ramstart, _ramend, _rambase;
+extern unsigned long memory_start, memory_end, physical_mem_end;
+
+extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[],
+ _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _sbss_b_l1[], _ebss_b_l1[],
+ _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[],
+ _ebss_l2[], _l2_lma_start[];
+
#endif
diff --git a/arch/blackfin/include/asm/signal.h b/arch/blackfin/include/asm/signal.h
index 87951d251458..2eea90794454 100644
--- a/arch/blackfin/include/asm/signal.h
+++ b/arch/blackfin/include/asm/signal.h
@@ -104,7 +104,7 @@ typedef unsigned long sigset_t;
#define MINSIGSTKSZ 2048
#define SIGSTKSZ 8192
-#include <asm-generic/signal.h>
+#include <asm-generic/signal-defs.h>
#ifdef __KERNEL__
struct old_sigaction {
diff --git a/arch/blackfin/include/asm/system.h b/arch/blackfin/include/asm/system.h
index a4c8254bec55..294dbda24164 100644
--- a/arch/blackfin/include/asm/system.h
+++ b/arch/blackfin/include/asm/system.h
@@ -35,10 +35,10 @@
#define _BLACKFIN_SYSTEM_H
#include <linux/linkage.h>
-#include <linux/compiler.h>
+#include <linux/irqflags.h>
#include <mach/anomaly.h>
+#include <asm/cache.h>
#include <asm/pda.h>
-#include <asm/processor.h>
#include <asm/irq.h>
/*
diff --git a/arch/blackfin/include/asm/time.h b/arch/blackfin/include/asm/time.h
index ddc43ce38533..589e937ed1eb 100644
--- a/arch/blackfin/include/asm/time.h
+++ b/arch/blackfin/include/asm/time.h
@@ -37,4 +37,5 @@ extern unsigned long long __bfin_cycles_off;
extern unsigned int __bfin_cycles_mod;
#endif
+extern void __init setup_core_timer(void);
#endif
diff --git a/arch/blackfin/include/asm/uaccess.h b/arch/blackfin/include/asm/uaccess.h
index 3248033531e6..8894e9ffbb57 100644
--- a/arch/blackfin/include/asm/uaccess.h
+++ b/arch/blackfin/include/asm/uaccess.h
@@ -59,12 +59,8 @@ static inline int is_in_rom(unsigned long addr)
#ifndef CONFIG_ACCESS_CHECK
static inline int _access_ok(unsigned long addr, unsigned long size) { return 1; }
#else
-#ifdef CONFIG_ACCESS_OK_L1
-extern int _access_ok(unsigned long addr, unsigned long size)__attribute__((l1_text));
-#else
extern int _access_ok(unsigned long addr, unsigned long size);
#endif
-#endif
/*
* The exception table consists of pairs of addresses: the first is the
@@ -83,9 +79,6 @@ struct exception_table_entry {
unsigned long insn, fixup;
};
-/* Returns 0 if exception not found and fixup otherwise. */
-extern unsigned long search_exception_table(unsigned long);
-
/*
* These are the main single-value transfer routines. They automatically
* use the right size if we just have the right pointer type.
@@ -233,16 +226,29 @@ strncpy_from_user(char *dst, const char *src, long count)
}
/*
- * Return the size of a string (including the ending 0)
+ * Get the size of a string in user space.
+ * src: The string to measure
+ * n: The maximum valid length
*
- * Return 0 on exception, a value greater than N if too long
+ * Get the size of a NUL-terminated string in user space.
+ *
+ * Returns the size of the string INCLUDING the terminating NUL.
+ * On exception, returns 0.
+ * If the string is too long, returns a value greater than n.
*/
-static inline long strnlen_user(const char *src, long n)
+static inline long __must_check strnlen_user(const char *src, long n)
{
- return (strlen(src) + 1);
+ if (!access_ok(VERIFY_READ, src, 1))
+ return 0;
+ return strnlen(src, n) + 1;
}
-#define strlen_user(str) strnlen_user(str, 32767)
+static inline long __must_check strlen_user(const char *src)
+{
+ if (!access_ok(VERIFY_READ, src, 1))
+ return 0;
+ return strlen(src) + 1;
+}
/*
* Zero Userspace
@@ -251,6 +257,8 @@ static inline long strnlen_user(const char *src, long n)
static inline unsigned long __must_check
__clear_user(void *to, unsigned long n)
{
+ if (!access_ok(VERIFY_WRITE, to, n))
+ return n;
memset(to, 0, n);
return 0;
}
diff --git a/arch/blackfin/include/asm/unistd.h b/arch/blackfin/include/asm/unistd.h
index cf5066d3efd2..da35133c171d 100644
--- a/arch/blackfin/include/asm/unistd.h
+++ b/arch/blackfin/include/asm/unistd.h
@@ -380,8 +380,9 @@
#define __NR_inotify_init1 365
#define __NR_preadv 366
#define __NR_pwritev 367
+#define __NR_rt_tgsigqueueinfo 368
-#define __NR_syscall 368
+#define __NR_syscall 369
#define NR_syscalls __NR_syscall
/* Old optional stuff no one actually uses */