#define clear_user(to, n) __clear_user(to, n)
+/* How to interpret these return values:
+ * CORE: can be accessed by core load or dma memcpy
+ * CORE_ONLY: can only be accessed by core load
+ * DMA: can only be accessed by dma memcpy
+ * IDMA: can only be accessed by interprocessor dma memcpy (BF561)
+ * ITEST: can be accessed by isram memcpy or dma memcpy
+ */
+enum {
+ BFIN_MEM_ACCESS_CORE = 0,
+ BFIN_MEM_ACCESS_CORE_ONLY,
+ BFIN_MEM_ACCESS_DMA,
+ BFIN_MEM_ACCESS_IDMA,
+ BFIN_MEM_ACCESS_ITEST,
+};
+/**
+ * bfin_mem_access_type() - what kind of memory access is required
+ * @addr: the address to check
+ * @size: number of bytes needed
+ * @return: <0 is error, >=0 is BFIN_MEM_ACCESS_xxx enum (see above)
+ */
+int bfin_mem_access_type(unsigned long addr, unsigned long size);
+
#endif /* _BLACKFIN_UACCESS_H */
#error change the definition of slavecpulocks
#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)
{
gdb_regs[BFIN_R0] = regs->r0;
static int validate_memory_access_address(unsigned long addr, int size)
{
- int cpu = raw_smp_processor_id();
-
- if (size < 0)
+ if (size < 0 || addr == 0)
return -EFAULT;
- if (addr >= 0x1000 && (addr + size) <= physical_mem_end)
- return 0;
- if (addr >= SYSMMR_BASE)
- return 0;
- if (IN_MEM(addr, size, ASYNC_BANK0_BASE, ASYNC_BANK_SIZE))
- return 0;
- if (cpu == 0) {
- if (IN_MEM(addr, size, L1_SCRATCH_START, L1_SCRATCH_LENGTH))
- return 0;
- if (IN_MEM(addr, size, L1_CODE_START, L1_CODE_LENGTH))
- return 0;
- if (IN_MEM(addr, size, L1_DATA_A_START, L1_DATA_A_LENGTH))
- return 0;
- if (IN_MEM(addr, size, L1_DATA_B_START, L1_DATA_B_LENGTH))
- return 0;
-#ifdef CONFIG_SMP
- } else if (cpu == 1) {
- if (IN_MEM(addr, size, COREB_L1_SCRATCH_START, L1_SCRATCH_LENGTH))
+ return bfin_mem_access_type(addr, size);
+}
+
+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 (IN_MEM(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;
- if (IN_MEM(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;
- if (IN_MEM(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
+ }
+ } 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 (IN_MEM(addr, size, L2_START, L2_LENGTH))
- return 0;
-
return -EFAULT;
}
{
char *tmp;
int err;
- unsigned char *pch;
- unsigned short mmr16;
- unsigned long mmr32;
- int cpu = raw_smp_processor_id();
-
- err = validate_memory_access_address((unsigned long)mem, count);
- if (err)
- return 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 && IN_MEM(mem, count, L1_CODE_START, L1_CODE_LENGTH))
-#ifdef CONFIG_SMP
- || (cpu == 1 && IN_MEM(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;
+ char *tmp_old, *tmp_new;
int size;
- int cpu = raw_smp_processor_id();
tmp_old = tmp_new = buf;
tmp_old++;
}
- err = validate_memory_access_address((unsigned long)mem, size);
- if (err)
- return err;
-
- 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
- err = -EFAULT;
- break;
- case 4:
- if ((unsigned int)mem % 4 == 0) {
- mmr32 = (unsigned long *)buf;
- *(unsigned long *)mem = *mmr32;
- } else
- err = -EFAULT;
- break;
- default:
- err = -EFAULT;
- }
- } else if ((cpu == 0 && IN_MEM(mem, count, L1_CODE_START, L1_CODE_LENGTH))
-#ifdef CONFIG_SMP
- || (cpu == 1 && IN_MEM(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 err;
- int cpu = raw_smp_processor_id();
-
- err = validate_memory_access_address((unsigned long)mem, count);
- if (err)
- return err;
+ 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
- err = -EFAULT;
- break;
- case 4:
- if ((unsigned int)mem % 4 == 0) {
- mmr32 = (unsigned long *)tmp_raw;
- *(unsigned long *)mem = *mmr32;
- } else
- err = -EFAULT;
- break;
- default:
- err = -EFAULT;
- }
- } else if ((cpu == 0 && IN_MEM(mem, count, L1_CODE_START, L1_CODE_LENGTH))
-#ifdef CONFIG_SMP
- || (cpu == 1 && IN_MEM(mem, count, COREB_L1_CODE_START, L1_CODE_LENGTH))
-#endif
- ) {
- /* access L1 instruction SRAM */
- if (dma_memcpy(mem, tmp_raw, count) == NULL)
- err = -EFAULT;
- } else
- err = probe_kernel_write(mem, tmp_raw, count);
-
- return err;
+ 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();
int kgdb_arch_set_breakpoint(unsigned long addr, char *saved_instr)
{
- int err;
- int cpu = raw_smp_processor_id();
-
- if ((cpu == 0 && IN_MEM(addr, BREAK_INSTR_SIZE, L1_CODE_START, L1_CODE_LENGTH))
-#ifdef CONFIG_SMP
- || (cpu == 1 && IN_MEM(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 (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;
-
- 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)
}
}
+static inline
+int in_mem(unsigned long addr, unsigned long size,
+ unsigned long start, unsigned long end)
+{
+ return addr >= start && addr + size <= end;
+}
+static inline
+int in_mem_const_off(unsigned long addr, unsigned long size, unsigned long off,
+ unsigned long const_addr, unsigned long const_size)
+{
+ return const_size &&
+ in_mem(addr, size, const_addr + off, const_addr + const_size);
+}
+static inline
+int in_mem_const(unsigned long addr, unsigned long size,
+ unsigned long const_addr, unsigned long const_size)
+{
+ return in_mem_const_off(addr, 0, size, const_addr, const_size);
+}
+#define IN_ASYNC(bnum, bctlnum) \
+({ \
+ (bfin_read_EBIU_AMGCTL() & 0xe) < ((bnum + 1) << 1) ? -EFAULT : \
+ bfin_read_EBIU_AMBCTL##bctlnum() & B##bnum##RDYEN ? -EFAULT : \
+ BFIN_MEM_ACCESS_CORE; \
+})
+
+int bfin_mem_access_type(unsigned long addr, unsigned long size)
+{
+ int cpu = raw_smp_processor_id();
+
+ /* Check that things do not wrap around */
+ if (addr > ULONG_MAX - size)
+ return -EFAULT;
+
+ if (in_mem(addr, size, FIXED_CODE_START, physical_mem_end))
+ return BFIN_MEM_ACCESS_CORE;
+
+ if (in_mem_const(addr, size, L1_CODE_START, L1_CODE_LENGTH))
+ return cpu == 0 ? BFIN_MEM_ACCESS_ITEST : BFIN_MEM_ACCESS_IDMA;
+ if (in_mem_const(addr, size, L1_SCRATCH_START, L1_SCRATCH_LENGTH))
+ return cpu == 0 ? BFIN_MEM_ACCESS_CORE_ONLY : -EFAULT;
+ if (in_mem_const(addr, size, L1_DATA_A_START, L1_DATA_A_LENGTH))
+ return cpu == 0 ? BFIN_MEM_ACCESS_CORE : BFIN_MEM_ACCESS_IDMA;
+ if (in_mem_const(addr, size, L1_DATA_B_START, L1_DATA_B_LENGTH))
+ return cpu == 0 ? BFIN_MEM_ACCESS_CORE : BFIN_MEM_ACCESS_IDMA;
+#ifdef COREB_L1_CODE_START
+ if (in_mem_const(addr, size, COREB_L1_CODE_START, L1_CODE_LENGTH))
+ return cpu == 1 ? BFIN_MEM_ACCESS_ITEST : BFIN_MEM_ACCESS_IDMA;
+ if (in_mem_const(addr, size, COREB_L1_SCRATCH_START, L1_SCRATCH_LENGTH))
+ return cpu == 1 ? BFIN_MEM_ACCESS_CORE_ONLY : -EFAULT;
+ if (in_mem_const(addr, size, COREB_L1_DATA_A_START, L1_DATA_A_LENGTH))
+ return cpu == 1 ? BFIN_MEM_ACCESS_CORE : BFIN_MEM_ACCESS_IDMA;
+ if (in_mem_const(addr, size, COREB_L1_DATA_B_START, L1_DATA_B_LENGTH))
+ return cpu == 1 ? BFIN_MEM_ACCESS_CORE : BFIN_MEM_ACCESS_IDMA;
+#endif
+ if (in_mem_const(addr, size, L2_START, L2_LENGTH))
+ return BFIN_MEM_ACCESS_CORE;
+
+ if (addr >= SYSMMR_BASE)
+ return BFIN_MEM_ACCESS_CORE_ONLY;
+
+ /* We can't read EBIU banks that aren't enabled or we end up hanging
+ * on the access to the async space.
+ */
+ if (in_mem_const(addr, size, ASYNC_BANK0_BASE, ASYNC_BANK0_SIZE))
+ return IN_ASYNC(0, 0);
+ if (in_mem_const(addr, size, ASYNC_BANK1_BASE, ASYNC_BANK1_SIZE))
+ return IN_ASYNC(1, 0);
+ if (in_mem_const(addr, size, ASYNC_BANK2_BASE, ASYNC_BANK2_SIZE))
+ return IN_ASYNC(2, 1);
+ if (in_mem_const(addr, size, ASYNC_BANK3_BASE, ASYNC_BANK3_SIZE))
+ return IN_ASYNC(3, 1);
+
+ if (in_mem_const(addr, size, BOOT_ROM_START, BOOT_ROM_LENGTH))
+ return BFIN_MEM_ACCESS_CORE;
+ if (in_mem_const(addr, size, L1_ROM_START, L1_ROM_LENGTH))
+ return BFIN_MEM_ACCESS_DMA;
+
+ return -EFAULT;
+}
+
#if defined(CONFIG_ACCESS_CHECK)
#ifdef CONFIG_ACCESS_OK_L1
__attribute__((l1_text))
{
if (size == 0)
return 1;
- if (addr > (addr + size))
+ /* Check that things do not wrap around */
+ if (addr > ULONG_MAX - size)
return 0;
if (segment_eq(get_fs(), KERNEL_DS))
return 1;
#ifdef CONFIG_MTD_UCLINUX
- if (addr >= memory_start && (addr + size) <= memory_end)
- return 1;
- if (addr >= memory_mtd_end && (addr + size) <= physical_mem_end)
+ if (1)
+#else
+ if (0)
+#endif
+ {
+ if (in_mem(addr, size, memory_start, memory_end))
+ return 1;
+ if (in_mem(addr, size, memory_mtd_end, physical_mem_end))
+ return 1;
+# ifndef CONFIG_ROMFS_ON_MTD
+ if (0)
+# endif
+ /* For XIP, allow user space to use pointers within the ROMFS. */
+ if (in_mem(addr, size, memory_mtd_start, memory_mtd_end))
+ return 1;
+ } else {
+ if (in_mem(addr, size, memory_start, physical_mem_end))
+ return 1;
+ }
+
+ if (in_mem(addr, size, (unsigned long)__init_begin, (unsigned long)__init_end))
return 1;
-#ifdef CONFIG_ROMFS_ON_MTD
- /* For XIP, allow user space to use pointers within the ROMFS. */
- if (addr >= memory_mtd_start && (addr + size) <= memory_mtd_end)
+ if (in_mem_const(addr, size, L1_CODE_START, L1_CODE_LENGTH))
return 1;
-#endif
-#else
- if (addr >= memory_start && (addr + size) <= physical_mem_end)
+ if (in_mem_const_off(addr, size, _etext_l1 - _stext_l1, L1_CODE_START, L1_CODE_LENGTH))
return 1;
-#endif
- if (addr >= (unsigned long)__init_begin &&
- addr + size <= (unsigned long)__init_end)
+ if (in_mem_const_off(addr, size, _ebss_l1 - _sdata_l1, L1_DATA_A_START, L1_DATA_A_LENGTH))
return 1;
- if (addr >= get_l1_scratch_start()
- && addr + size <= get_l1_scratch_start() + L1_SCRATCH_LENGTH)
+ if (in_mem_const_off(addr, size, _ebss_b_l1 - _sdata_b_l1, L1_DATA_B_START, L1_DATA_B_LENGTH))
return 1;
-#if L1_CODE_LENGTH != 0
- if (addr >= get_l1_code_start() + (_etext_l1 - _stext_l1)
- && addr + size <= get_l1_code_start() + L1_CODE_LENGTH)
+#ifdef COREB_L1_CODE_START
+ if (in_mem_const(addr, size, COREB_L1_CODE_START, L1_CODE_LENGTH))
return 1;
-#endif
-#if L1_DATA_A_LENGTH != 0
- if (addr >= get_l1_data_a_start() + (_ebss_l1 - _sdata_l1)
- && addr + size <= get_l1_data_a_start() + L1_DATA_A_LENGTH)
+ if (in_mem_const(addr, size, COREB_L1_SCRATCH_START, L1_SCRATCH_LENGTH))
return 1;
-#endif
-#if L1_DATA_B_LENGTH != 0
- if (addr >= get_l1_data_b_start() + (_ebss_b_l1 - _sdata_b_l1)
- && addr + size <= get_l1_data_b_start() + L1_DATA_B_LENGTH)
+ if (in_mem_const(addr, size, COREB_L1_DATA_A_START, L1_DATA_A_LENGTH))
return 1;
-#endif
-#if L2_LENGTH != 0
- if (addr >= L2_START + (_ebss_l2 - _stext_l2)
- && addr + size <= L2_START + L2_LENGTH)
+ if (in_mem_const(addr, size, COREB_L1_DATA_B_START, L1_DATA_B_LENGTH))
return 1;
#endif
+ if (in_mem_const_off(addr, size, _ebss_l2 - _stext_l2, L2_START, L2_LENGTH))
+ return 1;
+
+ if (in_mem_const(addr, size, BOOT_ROM_START, BOOT_ROM_LENGTH))
+ return 1;
+ if (in_mem_const(addr, size, L1_ROM_START, L1_ROM_LENGTH))
+ return 1;
+
return 0;
}
EXPORT_SYMBOL(_access_ok);
#include <asm/traps.h>
#include <asm/cacheflush.h>
#include <asm/cplb.h>
+#include <asm/dma.h>
#include <asm/blackfin.h>
#include <asm/irq_handler.h>
#include <linux/irq.h>
*/
static bool get_instruction(unsigned short *val, unsigned short *address)
{
-
- unsigned long addr;
-
- addr = (unsigned long)address;
+ unsigned long addr = (unsigned long)address;
/* Check for odd addresses */
if (addr & 0x1)
return false;
- /* Check that things do not wrap around */
- if (addr > (addr + 2))
+ /* MMR region will never have instructions */
+ if (addr >= SYSMMR_BASE)
return false;
- /*
- * Since we are in exception context, we need to do a little address checking
- * We need to make sure we are only accessing valid memory, and
- * we don't read something in the async space that can hang forever
- */
- if ((addr >= FIXED_CODE_START && (addr + 2) <= physical_mem_end) ||
-#if L2_LENGTH != 0
- (addr >= L2_START && (addr + 2) <= (L2_START + L2_LENGTH)) ||
-#endif
- (addr >= BOOT_ROM_START && (addr + 2) <= (BOOT_ROM_START + BOOT_ROM_LENGTH)) ||
-#if L1_DATA_A_LENGTH != 0
- (addr >= L1_DATA_A_START && (addr + 2) <= (L1_DATA_A_START + L1_DATA_A_LENGTH)) ||
-#endif
-#if L1_DATA_B_LENGTH != 0
- (addr >= L1_DATA_B_START && (addr + 2) <= (L1_DATA_B_START + L1_DATA_B_LENGTH)) ||
-#endif
- (addr >= L1_SCRATCH_START && (addr + 2) <= (L1_SCRATCH_START + L1_SCRATCH_LENGTH)) ||
- (!(bfin_read_EBIU_AMBCTL0() & B0RDYEN) &&
- addr >= ASYNC_BANK0_BASE && (addr + 2) <= (ASYNC_BANK0_BASE + ASYNC_BANK0_SIZE)) ||
- (!(bfin_read_EBIU_AMBCTL0() & B1RDYEN) &&
- addr >= ASYNC_BANK1_BASE && (addr + 2) <= (ASYNC_BANK1_BASE + ASYNC_BANK1_SIZE)) ||
- (!(bfin_read_EBIU_AMBCTL1() & B2RDYEN) &&
- addr >= ASYNC_BANK2_BASE && (addr + 2) <= (ASYNC_BANK2_BASE + ASYNC_BANK1_SIZE)) ||
- (!(bfin_read_EBIU_AMBCTL1() & B3RDYEN) &&
- addr >= ASYNC_BANK3_BASE && (addr + 2) <= (ASYNC_BANK3_BASE + ASYNC_BANK1_SIZE))) {
- *val = *address;
- return true;
+ switch (bfin_mem_access_type(addr, 2)) {
+ case BFIN_MEM_ACCESS_CORE:
+ case BFIN_MEM_ACCESS_CORE_ONLY:
+ *val = *address;
+ return true;
+ case BFIN_MEM_ACCESS_DMA:
+ dma_memcpy(val, address, 2);
+ return true;
+ case BFIN_MEM_ACCESS_ITEST:
+ isram_memcpy(val, address, 2);
+ return true;
+ default: /* invalid access */
+ return false;
}
-
-#if L1_CODE_LENGTH != 0
- if (addr >= L1_CODE_START && (addr + 2) <= (L1_CODE_START + L1_CODE_LENGTH)) {
- isram_memcpy(val, address, 2);
- return true;
- }
-#endif
-
-
- return false;
}
/*
git://ftp.safe.ca / safe / jmp / linux-2.6 / commitdiff