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Diffstat (limited to 'arch/blackfin/kernel/kgdb.c')
-rw-r--r--arch/blackfin/kernel/kgdb.c127
1 files changed, 36 insertions, 91 deletions
diff --git a/arch/blackfin/kernel/kgdb.c b/arch/blackfin/kernel/kgdb.c
index b795a207742c..b163f6d3330d 100644
--- a/arch/blackfin/kernel/kgdb.c
+++ b/arch/blackfin/kernel/kgdb.c
@@ -34,9 +34,14 @@ int gdb_bfin_vector = -1;
#error change the definition of slavecpulocks
#endif
-#ifdef CONFIG_BFIN_WDT
-# error "Please unselect blackfin watchdog driver before build KGDB."
-#endif
+#define IN_MEM(addr, size, l1_addr, l1_size) \
+({ \
+ unsigned long __addr = (unsigned long)(addr); \
+ (l1_size && __addr >= l1_addr && __addr + (size) <= l1_addr + l1_size); \
+})
+#define ASYNC_BANK_SIZE \
+ (ASYNC_BANK0_SIZE + ASYNC_BANK1_SIZE + \
+ ASYNC_BANK2_SIZE + ASYNC_BANK3_SIZE)
void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs)
{
@@ -105,7 +110,7 @@ void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs)
* Extracts ebp, esp and eip values understandable by gdb from the values
* saved by switch_to.
* thread.esp points to ebp. flags and ebp are pushed in switch_to hence esp
- * prior to entering switch_to is 8 greater then the value that is saved.
+ * prior to entering switch_to is 8 greater than the value that is saved.
* If switch_to changes, change following code appropriately.
*/
void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *p)
@@ -219,6 +224,7 @@ int bfin_set_hw_break(unsigned long addr, int len, enum kgdb_bptype type)
if (bfin_type == breakinfo[breakno].type
&& !breakinfo[breakno].occupied) {
breakinfo[breakno].occupied = 1;
+ breakinfo[breakno].skip = 0;
breakinfo[breakno].enabled = 1;
breakinfo[breakno].addr = addr;
breakinfo[breakno].dataacc = dataacc;
@@ -363,12 +369,12 @@ void kgdb_passive_cpu_callback(void *info)
void kgdb_roundup_cpus(unsigned long flags)
{
- smp_call_function(kgdb_passive_cpu_callback, NULL, 0, 0);
+ smp_call_function(kgdb_passive_cpu_callback, NULL, 0);
}
void kgdb_roundup_cpu(int cpu, unsigned long flags)
{
- smp_call_function_single(cpu, kgdb_passive_cpu_callback, NULL, 0, 0);
+ smp_call_function_single(cpu, kgdb_passive_cpu_callback, NULL, 0);
}
#endif
@@ -385,10 +391,8 @@ int kgdb_arch_handle_exception(int vector, int signo,
struct pt_regs *regs)
{
long addr;
- long breakno;
char *ptr;
int newPC;
- int wp_status;
int i;
switch (remcom_in_buffer[0]) {
@@ -426,17 +430,6 @@ int kgdb_arch_handle_exception(int vector, int signo,
kgdb_single_step = i + 1;
}
- if (vector == VEC_WATCH) {
- wp_status = bfin_read_WPSTAT();
- for (breakno = 0; breakno < HW_WATCHPOINT_NUM; breakno++) {
- if (wp_status & (1 << breakno)) {
- breakinfo->skip = 1;
- break;
- }
- }
- bfin_write_WPSTAT(0);
- }
-
bfin_correct_hw_break();
return 0;
@@ -478,57 +471,32 @@ static int validate_memory_access_address(unsigned long addr, int size)
return 0;
if (addr >= SYSMMR_BASE)
return 0;
- if (addr >= ASYNC_BANK0_BASE
- && addr + size <= ASYNC_BANK3_BASE + ASYNC_BANK3_SIZE)
+ if (IN_MEM(addr, size, ASYNC_BANK0_BASE, ASYNC_BANK_SIZE))
return 0;
if (cpu == 0) {
- if (addr >= L1_SCRATCH_START
- && (addr + size <= L1_SCRATCH_START + L1_SCRATCH_LENGTH))
+ if (IN_MEM(addr, size, L1_SCRATCH_START, L1_SCRATCH_LENGTH))
return 0;
-#if L1_CODE_LENGTH != 0
- if (addr >= L1_CODE_START
- && (addr + size <= L1_CODE_START + L1_CODE_LENGTH))
+ if (IN_MEM(addr, size, L1_CODE_START, L1_CODE_LENGTH))
return 0;
-#endif
-#if L1_DATA_A_LENGTH != 0
- if (addr >= L1_DATA_A_START
- && (addr + size <= L1_DATA_A_START + L1_DATA_A_LENGTH))
+ if (IN_MEM(addr, size, L1_DATA_A_START, L1_DATA_A_LENGTH))
return 0;
-#endif
-#if L1_DATA_B_LENGTH != 0
- if (addr >= L1_DATA_B_START
- && (addr + size <= L1_DATA_B_START + L1_DATA_B_LENGTH))
+ if (IN_MEM(addr, size, L1_DATA_B_START, L1_DATA_B_LENGTH))
return 0;
-#endif
#ifdef CONFIG_SMP
} else if (cpu == 1) {
- if (addr >= COREB_L1_SCRATCH_START
- && (addr + size <= COREB_L1_SCRATCH_START
- + L1_SCRATCH_LENGTH))
+ if (IN_MEM(addr, size, COREB_L1_SCRATCH_START, L1_SCRATCH_LENGTH))
return 0;
-# if L1_CODE_LENGTH != 0
- if (addr >= COREB_L1_CODE_START
- && (addr + size <= COREB_L1_CODE_START + L1_CODE_LENGTH))
+ if (IN_MEM(addr, size, COREB_L1_CODE_START, L1_CODE_LENGTH))
return 0;
-# endif
-# if L1_DATA_A_LENGTH != 0
- if (addr >= COREB_L1_DATA_A_START
- && (addr + size <= COREB_L1_DATA_A_START + L1_DATA_A_LENGTH))
+ if (IN_MEM(addr, size, COREB_L1_DATA_A_START, L1_DATA_A_LENGTH))
return 0;
-# endif
-# if L1_DATA_B_LENGTH != 0
- if (addr >= COREB_L1_DATA_B_START
- && (addr + size <= COREB_L1_DATA_B_START + L1_DATA_B_LENGTH))
+ if (IN_MEM(addr, size, COREB_L1_DATA_B_START, L1_DATA_B_LENGTH))
return 0;
-# endif
#endif
}
-#if L2_LENGTH != 0
- if (addr >= L2_START
- && addr + size <= L2_START + L2_LENGTH)
+ if (IN_MEM(addr, size, L2_START, L2_LENGTH))
return 0;
-#endif
return EFAULT;
}
@@ -582,12 +550,9 @@ int kgdb_mem2hex(char *mem, char *buf, int count)
default:
err = EFAULT;
}
- } else if (cpu == 0 && (unsigned int)mem >= L1_CODE_START &&
- (unsigned int)(mem + count) <= L1_CODE_START + L1_CODE_LENGTH
+ } else if ((cpu == 0 && IN_MEM(mem, count, L1_CODE_START, L1_CODE_LENGTH))
#ifdef CONFIG_SMP
- || cpu == 1 && (unsigned int)mem >= COREB_L1_CODE_START &&
- (unsigned int)(mem + count) <=
- COREB_L1_CODE_START + L1_CODE_LENGTH
+ || (cpu == 1 && IN_MEM(mem, count, COREB_L1_CODE_START, L1_CODE_LENGTH))
#endif
) {
/* access L1 instruction SRAM*/
@@ -658,12 +623,9 @@ int kgdb_ebin2mem(char *buf, char *mem, int count)
default:
return EFAULT;
}
- } else if (cpu == 0 && (unsigned int)mem >= L1_CODE_START &&
- (unsigned int)(mem + count) < L1_CODE_START + L1_CODE_LENGTH
+ } else if ((cpu == 0 && IN_MEM(mem, count, L1_CODE_START, L1_CODE_LENGTH))
#ifdef CONFIG_SMP
- || cpu == 1 && (unsigned int)mem >= COREB_L1_CODE_START &&
- (unsigned int)(mem + count) <=
- COREB_L1_CODE_START + L1_CODE_LENGTH
+ || (cpu == 1 && IN_MEM(mem, count, COREB_L1_CODE_START, L1_CODE_LENGTH))
#endif
) {
/* access L1 instruction SRAM */
@@ -723,12 +685,9 @@ int kgdb_hex2mem(char *buf, char *mem, int count)
default:
return EFAULT;
}
- } else if (cpu == 0 && (unsigned int)mem >= L1_CODE_START &&
- (unsigned int)(mem + count) <= L1_CODE_START + L1_CODE_LENGTH
+ } else if ((cpu == 0 && IN_MEM(mem, count, L1_CODE_START, L1_CODE_LENGTH))
#ifdef CONFIG_SMP
- || cpu == 1 && (unsigned int)mem >= COREB_L1_CODE_START &&
- (unsigned int)(mem + count) <=
- COREB_L1_CODE_START + L1_CODE_LENGTH
+ || (cpu == 1 && IN_MEM(mem, count, COREB_L1_CODE_START, L1_CODE_LENGTH))
#endif
) {
/* access L1 instruction SRAM */
@@ -745,24 +704,16 @@ int kgdb_validate_break_address(unsigned long addr)
if (addr >= 0x1000 && (addr + BREAK_INSTR_SIZE) <= physical_mem_end)
return 0;
- if (addr >= ASYNC_BANK0_BASE
- && addr + BREAK_INSTR_SIZE <= ASYNC_BANK3_BASE + ASYNC_BANK3_BASE)
+ if (IN_MEM(addr, BREAK_INSTR_SIZE, ASYNC_BANK0_BASE, ASYNC_BANK_SIZE))
return 0;
-#if L1_CODE_LENGTH != 0
- if (cpu == 0 && addr >= L1_CODE_START
- && addr + BREAK_INSTR_SIZE <= L1_CODE_START + L1_CODE_LENGTH)
+ if (cpu == 0 && IN_MEM(addr, BREAK_INSTR_SIZE, L1_CODE_START, L1_CODE_LENGTH))
return 0;
-# ifdef CONFIG_SMP
- else if (cpu == 1 && addr >= COREB_L1_CODE_START
- && addr + BREAK_INSTR_SIZE <= COREB_L1_CODE_START + L1_CODE_LENGTH)
+#ifdef CONFIG_SMP
+ else if (cpu == 1 && IN_MEM(addr, BREAK_INSTR_SIZE, COREB_L1_CODE_START, L1_CODE_LENGTH))
return 0;
-# endif
#endif
-#if L2_LENGTH != 0
- if (addr >= L2_START
- && addr + BREAK_INSTR_SIZE <= L2_START + L2_LENGTH)
+ if (IN_MEM(addr, BREAK_INSTR_SIZE, L2_START, L2_LENGTH))
return 0;
-#endif
return EFAULT;
}
@@ -772,13 +723,9 @@ int kgdb_arch_set_breakpoint(unsigned long addr, char *saved_instr)
int err;
int cpu = raw_smp_processor_id();
- if ((cpu == 0 && (unsigned int)addr >= L1_CODE_START
- && (unsigned int)(addr + BREAK_INSTR_SIZE)
- < L1_CODE_START + L1_CODE_LENGTH)
+ if ((cpu == 0 && IN_MEM(addr, BREAK_INSTR_SIZE, L1_CODE_START, L1_CODE_LENGTH))
#ifdef CONFIG_SMP
- || (cpu == 1 && (unsigned int)addr >= COREB_L1_CODE_START
- && (unsigned int)(addr + BREAK_INSTR_SIZE)
- < COREB_L1_CODE_START + L1_CODE_LENGTH)
+ || (cpu == 1 && IN_MEM(addr, BREAK_INSTR_SIZE, COREB_L1_CODE_START, L1_CODE_LENGTH))
#endif
) {
/* access L1 instruction SRAM */
@@ -804,9 +751,7 @@ int kgdb_arch_set_breakpoint(unsigned long addr, char *saved_instr)
int kgdb_arch_remove_breakpoint(unsigned long addr, char *bundle)
{
- if ((unsigned int)addr >= L1_CODE_START &&
- (unsigned int)(addr + BREAK_INSTR_SIZE) <
- L1_CODE_START + L1_CODE_LENGTH) {
+ if (IN_MEM(addr, BREAK_INSTR_SIZE, L1_CODE_START, L1_CODE_LENGTH)) {
/* access L1 instruction SRAM */
if (dma_memcpy((void *)addr, bundle, BREAK_INSTR_SIZE) == NULL)
return -EFAULT;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 13:58:31 +0100