#error change the definition of slavecpulocks
#endif
-#ifdef CONFIG_BFIN_WDT
-# error "Please unselect blackfin watchdog driver before build KGDB."
-#endif
-
void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs)
{
gdb_regs[BFIN_R0] = regs->r0;
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;
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
struct pt_regs *regs)
{
long addr;
- long breakno;
char *ptr;
int newPC;
- int wp_status;
int i;
switch (remcom_in_buffer[0]) {
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;
static int validate_memory_access_address(unsigned long addr, int size)
{
- int cpu = raw_smp_processor_id();
+ if (size < 0 || addr == 0)
+ return -EFAULT;
+ return bfin_mem_access_type(addr, size);
+}
- if (size < 0)
- return EFAULT;
- if (addr >= 0x1000 && (addr + size) <= physical_mem_end)
- return 0;
- if (addr >= SYSMMR_BASE)
- return 0;
- if (addr >= ASYNC_BANK0_BASE
- && addr + size <= ASYNC_BANK3_BASE + ASYNC_BANK3_SIZE)
- return 0;
- if (cpu == 0) {
- if (addr >= L1_SCRATCH_START
- && (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))
- 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))
- 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))
- 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))
+static int bfin_probe_kernel_read(char *dst, char *src, int size)
+{
+ unsigned long lsrc = (unsigned long)src;
+ int mem_type;
+
+ mem_type = validate_memory_access_address(lsrc, size);
+ if (mem_type < 0)
+ return mem_type;
+
+ if (lsrc >= SYSMMR_BASE) {
+ if (size == 2 && lsrc % 2 == 0) {
+ u16 mmr = bfin_read16(src);
+ memcpy(dst, &mmr, sizeof(mmr));
return 0;
-# if L1_CODE_LENGTH != 0
- if (addr >= COREB_L1_CODE_START
- && (addr + size <= COREB_L1_CODE_START + L1_CODE_LENGTH))
+ } else if (size == 4 && lsrc % 4 == 0) {
+ u32 mmr = bfin_read32(src);
+ memcpy(dst, &mmr, sizeof(mmr));
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))
+ }
+ } else {
+ switch (mem_type) {
+ case BFIN_MEM_ACCESS_CORE:
+ case BFIN_MEM_ACCESS_CORE_ONLY:
+ return probe_kernel_read(dst, src, size);
+ /* XXX: should support IDMA here with SMP */
+ case BFIN_MEM_ACCESS_DMA:
+ if (dma_memcpy(dst, src, size))
+ return 0;
+ break;
+ case BFIN_MEM_ACCESS_ITEST:
+ if (isram_memcpy(dst, src, size))
+ return 0;
+ break;
+ }
+ }
+
+ return -EFAULT;
+}
+
+static int bfin_probe_kernel_write(char *dst, char *src, int size)
+{
+ unsigned long ldst = (unsigned long)dst;
+ int mem_type;
+
+ mem_type = validate_memory_access_address(ldst, size);
+ if (mem_type < 0)
+ return mem_type;
+
+ if (ldst >= SYSMMR_BASE) {
+ if (size == 2 && ldst % 2 == 0) {
+ u16 mmr;
+ memcpy(&mmr, src, sizeof(mmr));
+ bfin_write16(dst, mmr);
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))
+ } else if (size == 4 && ldst % 4 == 0) {
+ u32 mmr;
+ memcpy(&mmr, src, sizeof(mmr));
+ bfin_write32(dst, mmr);
return 0;
-# endif
-#endif
+ }
+ } else {
+ switch (mem_type) {
+ case BFIN_MEM_ACCESS_CORE:
+ case BFIN_MEM_ACCESS_CORE_ONLY:
+ return probe_kernel_write(dst, src, size);
+ /* XXX: should support IDMA here with SMP */
+ case BFIN_MEM_ACCESS_DMA:
+ if (dma_memcpy(dst, src, size))
+ return 0;
+ break;
+ case BFIN_MEM_ACCESS_ITEST:
+ if (isram_memcpy(dst, src, size))
+ return 0;
+ break;
+ }
}
-#if L2_LENGTH != 0
- if (addr >= L2_START
- && addr + size <= L2_START + L2_LENGTH)
- return 0;
-#endif
-
- return EFAULT;
+ return -EFAULT;
}
/*
int kgdb_mem2hex(char *mem, char *buf, int count)
{
char *tmp;
- int err = 0;
- unsigned char *pch;
- unsigned short mmr16;
- unsigned long mmr32;
- int cpu = raw_smp_processor_id();
-
- if (validate_memory_access_address((unsigned long)mem, count))
- return EFAULT;
+ int err;
/*
* We use the upper half of buf as an intermediate buffer for the
*/
tmp = buf + count;
- if ((unsigned int)mem >= SYSMMR_BASE) { /*access MMR registers*/
- switch (count) {
- case 2:
- if ((unsigned int)mem % 2 == 0) {
- mmr16 = *(unsigned short *)mem;
- pch = (unsigned char *)&mmr16;
- *tmp++ = *pch++;
- *tmp++ = *pch++;
- tmp -= 2;
- } else
- err = EFAULT;
- break;
- case 4:
- if ((unsigned int)mem % 4 == 0) {
- mmr32 = *(unsigned long *)mem;
- pch = (unsigned char *)&mmr32;
- *tmp++ = *pch++;
- *tmp++ = *pch++;
- *tmp++ = *pch++;
- *tmp++ = *pch++;
- tmp -= 4;
- } else
- err = EFAULT;
- break;
- default:
- err = EFAULT;
- }
- } else if (cpu == 0 && (unsigned int)mem >= L1_CODE_START &&
- (unsigned int)(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
-#endif
- ) {
- /* access L1 instruction SRAM*/
- if (dma_memcpy(tmp, mem, count) == NULL)
- err = EFAULT;
- } else
- err = probe_kernel_read(tmp, mem, count);
-
+ err = bfin_probe_kernel_read(tmp, mem, count);
if (!err) {
while (count > 0) {
buf = pack_hex_byte(buf, *tmp);
*/
int kgdb_ebin2mem(char *buf, char *mem, int count)
{
- char *tmp_old;
- char *tmp_new;
- unsigned short *mmr16;
- unsigned long *mmr32;
- int err = 0;
- int size = 0;
- int cpu = raw_smp_processor_id();
+ char *tmp_old, *tmp_new;
+ int size;
tmp_old = tmp_new = buf;
- while (count-- > 0) {
+ for (size = 0; size < count; ++size) {
if (*tmp_old == 0x7d)
*tmp_new = *(++tmp_old) ^ 0x20;
else
*tmp_new = *tmp_old;
tmp_new++;
tmp_old++;
- size++;
}
- if (validate_memory_access_address((unsigned long)mem, size))
- return EFAULT;
-
- if ((unsigned int)mem >= SYSMMR_BASE) { /*access MMR registers*/
- switch (size) {
- case 2:
- if ((unsigned int)mem % 2 == 0) {
- mmr16 = (unsigned short *)buf;
- *(unsigned short *)mem = *mmr16;
- } else
- return EFAULT;
- break;
- case 4:
- if ((unsigned int)mem % 4 == 0) {
- mmr32 = (unsigned long *)buf;
- *(unsigned long *)mem = *mmr32;
- } else
- return EFAULT;
- break;
- default:
- return EFAULT;
- }
- } else if (cpu == 0 && (unsigned int)mem >= L1_CODE_START &&
- (unsigned int)(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
-#endif
- ) {
- /* access L1 instruction SRAM */
- if (dma_memcpy(mem, buf, size) == NULL)
- err = EFAULT;
- } else
- err = probe_kernel_write(mem, buf, size);
-
- return err;
+ return bfin_probe_kernel_write(mem, buf, count);
}
/*
*/
int kgdb_hex2mem(char *buf, char *mem, int count)
{
- char *tmp_raw;
- char *tmp_hex;
- unsigned short *mmr16;
- unsigned long *mmr32;
- int cpu = raw_smp_processor_id();
-
- if (validate_memory_access_address((unsigned long)mem, count))
- return EFAULT;
+ char *tmp_raw, *tmp_hex;
/*
* We use the upper half of buf as an intermediate buffer for the
*tmp_raw |= hex(*tmp_hex--) << 4;
}
- if ((unsigned int)mem >= SYSMMR_BASE) { /*access MMR registers*/
- switch (count) {
- case 2:
- if ((unsigned int)mem % 2 == 0) {
- mmr16 = (unsigned short *)tmp_raw;
- *(unsigned short *)mem = *mmr16;
- } else
- return EFAULT;
- break;
- case 4:
- if ((unsigned int)mem % 4 == 0) {
- mmr32 = (unsigned long *)tmp_raw;
- *(unsigned long *)mem = *mmr32;
- } else
- return EFAULT;
- break;
- default:
- return EFAULT;
- }
- } else if (cpu == 0 && (unsigned int)mem >= L1_CODE_START &&
- (unsigned int)(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
-#endif
- ) {
- /* access L1 instruction SRAM */
- if (dma_memcpy(mem, tmp_raw, count) == NULL)
- return EFAULT;
- } else
- return probe_kernel_write(mem, tmp_raw, count);
- return 0;
+ return bfin_probe_kernel_write(mem, tmp_raw, count);
}
+#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)
+
int kgdb_validate_break_address(unsigned long addr)
{
int cpu = raw_smp_processor_id();
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;
+ return -EFAULT;
}
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)
-#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)
-#endif
- ) {
- /* access L1 instruction SRAM */
- if (dma_memcpy(saved_instr, (void *)addr, BREAK_INSTR_SIZE)
- == NULL)
- return -EFAULT;
-
- if (dma_memcpy((void *)addr, arch_kgdb_ops.gdb_bpt_instr,
- BREAK_INSTR_SIZE) == NULL)
- return -EFAULT;
-
- return 0;
- } else {
- err = probe_kernel_read(saved_instr, (char *)addr,
- BREAK_INSTR_SIZE);
- if (err)
- return err;
-
- return probe_kernel_write((char *)addr,
- arch_kgdb_ops.gdb_bpt_instr, BREAK_INSTR_SIZE);
- }
+ int err = bfin_probe_kernel_read(saved_instr, (char *)addr,
+ BREAK_INSTR_SIZE);
+ if (err)
+ return err;
+ return bfin_probe_kernel_write((char *)addr, arch_kgdb_ops.gdb_bpt_instr,
+ BREAK_INSTR_SIZE);
}
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) {
- /* access L1 instruction SRAM */
- if (dma_memcpy((void *)addr, bundle, BREAK_INSTR_SIZE) == NULL)
- return -EFAULT;
-
- return 0;
- } else
- return probe_kernel_write((char *)addr,
- (char *)bundle, BREAK_INSTR_SIZE);
+ return bfin_probe_kernel_write((char *)addr, bundle, BREAK_INSTR_SIZE);
}
int kgdb_arch_init(void)
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff