void _CPU_Exception_frame_print( const CPU_Exception_frame *frame )
{
uint32_t trap;
uint32_t real_trap;
const CPU_Interrupt_frame *isf;
trap = frame->trap;
real_trap = SPARC_REAL_TRAP_NUMBER(trap);
isf = frame->isf;
printk( "Unexpected trap (%2d) at address 0x%08x\n", real_trap, isf->tpc);
switch (real_trap) {
/*
* First the ones defined by the basic architecture
*/
case 0x00:
printk( "reset\n" );
break;
case 0x01:
printk( "instruction access exception\n" );
break;
case 0x02:
printk( "illegal instruction\n" );
break;
case 0x03:
printk( "privileged instruction\n" );
break;
case 0x04:
printk( "fp disabled\n" );
break;
case 0x07:
printk( "memory address not aligned\n" );
break;
case 0x08:
printk( "fp exception\n" );
break;
case 0x09:
printk("data access exception at 0x%08x\n",
ERC32_MEC.First_Failing_Address );
break;
case 0x0A:
printk( "tag overflow\n" );
break;
/*
* Then the ones defined by the ERC32 in particular
*/
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_MASKED_ERRORS ):
printk( "ERC32_INTERRUPT_MASKED_ERRORS\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_EXTERNAL_1 ):
printk( "ERC32_INTERRUPT_EXTERNAL_1\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_EXTERNAL_2 ):
printk( "ERC32_INTERRUPT_EXTERNAL_2\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_UART_A_RX_TX ):
printk( "ERC32_INTERRUPT_UART_A_RX_TX\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_UART_B_RX_TX ):
printk( "ERC32_INTERRUPT_UART_A_RX_TX\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_CORRECTABLE_MEMORY_ERROR ):
printk( "ERC32_INTERRUPT_CORRECTABLE_MEMORY_ERROR\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_UART_ERROR ):
printk( "ERC32_INTERRUPT_UART_ERROR\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_DMA_ACCESS_ERROR ):
printk( "ERC32_INTERRUPT_DMA_ACCESS_ERROR\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_DMA_TIMEOUT ):
printk( "ERC32_INTERRUPT_DMA_TIMEOUT\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_EXTERNAL_3 ):
printk( "ERC32_INTERRUPT_EXTERNAL_3\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_EXTERNAL_4 ):
printk( "ERC32_INTERRUPT_EXTERNAL_4\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_GENERAL_PURPOSE_TIMER ):
printk( "ERC32_INTERRUPT_GENERAL_PURPOSE_TIMER\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_REAL_TIME_CLOCK ):
printk( "ERC32_INTERRUPT_REAL_TIME_CLOCK\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_EXTERNAL_5 ):
printk( "ERC32_INTERRUPT_EXTERNAL_5\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_WATCHDOG_TIMEOUT ):
printk( "ERC32_INTERRUPT_WATCHDOG_TIMEOUT\n" );
break;
default:
break;
}
}
void _CPU_ISR_install_raw_handler(
uint32_t vector,
proc_ptr new_handler,
proc_ptr *old_handler
)
{
uint32_t real_vector;
CPU_Trap_table_entry *tbr;
CPU_Trap_table_entry *slot;
uint32_t u32_tbr;
uint32_t u32_handler;
/*
* Get the "real" trap number for this vector ignoring the synchronous
* versus asynchronous indicator included with our vector numbers.
*/
real_vector = SPARC_REAL_TRAP_NUMBER( vector );
/*
* Get the current base address of the trap table and calculate a pointer
* to the slot we are interested in.
*/
sparc_get_tbr( u32_tbr );
u32_tbr &= 0xfffff000;
tbr = (CPU_Trap_table_entry *) u32_tbr;
slot = &tbr[ real_vector ];
/*
* Get the address of the old_handler from the trap table.
*
* NOTE: The old_handler returned will be bogus if it does not follow
* the RTEMS model.
*/
#define HIGH_BITS_MASK 0xFFFFFC00
#define HIGH_BITS_SHIFT 10
#define LOW_BITS_MASK 0x000003FF
if ( slot->mov_psr_l0 == _CPU_Trap_slot_template.mov_psr_l0 ) {
u32_handler =
(slot->sethi_of_handler_to_l4 << HIGH_BITS_SHIFT) |
(slot->jmp_to_low_of_handler_plus_l4 & LOW_BITS_MASK);
*old_handler = (proc_ptr) u32_handler;
} else
*old_handler = 0;
/*
* Copy the template to the slot and then fix it.
*/
*slot = _CPU_Trap_slot_template;
u32_handler = (uint32_t) new_handler;
slot->mov_vector_l3 |= vector;
slot->sethi_of_handler_to_l4 |=
(u32_handler & HIGH_BITS_MASK) >> HIGH_BITS_SHIFT;
slot->jmp_to_low_of_handler_plus_l4 |= (u32_handler & LOW_BITS_MASK);
/*
* There is no instruction cache snooping, so we need to invalidate
* the instruction cache to make sure that the processor sees the
* changes to the trap table. This step is required on both single-
* and multiprocessor systems.
*
* In a SMP configuration a change to the trap table might be
* missed by other cores. If the system state is up, the other
* cores can be notified using SMP messages that they need to
* flush their icache. If the up state has not been reached
* there is no need to notify other cores. They will do an
* automatic flush of the icache just after entering the up
* state, but before enabling interrupts.
*/
rtems_cache_invalidate_entire_instruction();
}
rtems_isr bsp_spurious_handler(
rtems_vector_number trap,
CPU_Interrupt_frame *isf
)
{
uint32_t real_trap;
real_trap = SPARC_REAL_TRAP_NUMBER(trap);
printk( "Unexpected trap (%2d) at address 0x%08x\n", real_trap, isf->tpc);
switch (real_trap) {
/*
* First the ones defined by the basic architecture
*/
case 0x00:
printk( "reset\n" );
break;
case 0x01:
printk( "instruction access exception\n" );
break;
case 0x02:
printk( "illegal instruction\n" );
break;
case 0x03:
printk( "privileged instruction\n" );
break;
case 0x04:
printk( "fp disabled\n" );
break;
case 0x07:
printk( "memory address not aligned\n" );
break;
case 0x08:
printk( "fp exception\n" );
break;
case 0x09:
printk("data access exception at 0x%08x\n",
ERC32_MEC.First_Failing_Address );
break;
case 0x0A:
printk( "tag overflow\n" );
break;
/*
* Then the ones defined by the ERC32 in particular
*/
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_MASKED_ERRORS ):
printk( "ERC32_INTERRUPT_MASKED_ERRORS\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_EXTERNAL_1 ):
printk( "ERC32_INTERRUPT_EXTERNAL_1\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_EXTERNAL_2 ):
printk( "ERC32_INTERRUPT_EXTERNAL_2\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_UART_A_RX_TX ):
printk( "ERC32_INTERRUPT_UART_A_RX_TX\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_UART_B_RX_TX ):
printk( "ERC32_INTERRUPT_UART_A_RX_TX\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_CORRECTABLE_MEMORY_ERROR ):
printk( "ERC32_INTERRUPT_CORRECTABLE_MEMORY_ERROR\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_UART_ERROR ):
printk( "ERC32_INTERRUPT_UART_ERROR\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_DMA_ACCESS_ERROR ):
printk( "ERC32_INTERRUPT_DMA_ACCESS_ERROR\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_DMA_TIMEOUT ):
printk( "ERC32_INTERRUPT_DMA_TIMEOUT\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_EXTERNAL_3 ):
printk( "ERC32_INTERRUPT_EXTERNAL_3\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_EXTERNAL_4 ):
printk( "ERC32_INTERRUPT_EXTERNAL_4\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_GENERAL_PURPOSE_TIMER ):
printk( "ERC32_INTERRUPT_GENERAL_PURPOSE_TIMER\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_REAL_TIME_CLOCK ):
printk( "ERC32_INTERRUPT_REAL_TIME_CLOCK\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_EXTERNAL_5 ):
printk( "ERC32_INTERRUPT_EXTERNAL_5\n" );
break;
case ERC32_TRAP_TYPE( ERC32_INTERRUPT_WATCHDOG_TIMEOUT ):
printk( "ERC32_INTERRUPT_WATCHDOG_TIMEOUT\n" );
break;
default:
break;
}
/*
* What else can we do but stop ...
*/
asm volatile( "mov 1, %g1; ta 0x0" );
}
/* Verified this is working properly from sparc64_install_isr_entries */
void _CPU_ISR_install_raw_handler(
uint32_t vector,
proc_ptr new_handler,
proc_ptr *old_handler
)
{
uint32_t real_vector;
CPU_Trap_table_entry *tba;
CPU_Trap_table_entry *slot;
uint64_t u64_tba;
uint64_t u64_handler;
/*
* Get the "real" trap number for this vector ignoring the synchronous
* versus asynchronous indicator included with our vector numbers.
*/
real_vector = SPARC_REAL_TRAP_NUMBER( vector );
/*
* Get the current base address of the trap table and calculate a pointer
* to the slot we are interested in.
*/
sparc64_get_tba( u64_tba );
/* u32_tbr &= 0xfffff000; */
u64_tba &= 0xffffffffffff8000; /* keep only trap base address */
tba = (CPU_Trap_table_entry *) u64_tba;
/* use array indexing to fill in lower bits -- require
* CPU_Trap_table_entry to be full-sized. */
slot = &tba[ real_vector ];
/*
* Get the address of the old_handler from the trap table.
*
* NOTE: The old_handler returned will be bogus if it does not follow
* the RTEMS model.
*/
/* shift amount to shift of hi bits (31:10) */
#define HI_BITS_SHIFT 10
/* shift amount of hm bits (41:32) */
#define HM_BITS_SHIFT 32
/* shift amount of hh bits (63:42) */
#define HH_BITS_SHIFT 42
/* We're only interested in bits 0-9 of the immediate field*/
#define IMM_MASK 0x000003FF
if ( slot->rdpr_tstate_g4 == _CPU_Trap_slot_template.rdpr_tstate_g4 ) {
u64_handler =
(((uint64_t)((slot->sethi_of_hh_handler_to_g2 << HI_BITS_SHIFT) |
(slot->or_g2_hm_handler_to_g2 & IMM_MASK))) << HM_BITS_SHIFT) |
((slot->sethi_of_handler_to_g3 << HI_BITS_SHIFT) |
(slot->jmp_to_low_of_handler_plus_g3 & IMM_MASK));
*old_handler = (proc_ptr) u64_handler;
} else
*old_handler = 0;
/*
* Copy the template to the slot and then fix it.
*/
*slot = _CPU_Trap_slot_template;
u64_handler = (uint64_t) new_handler;
/* mask for extracting %hh */
#define HH_BITS_MASK 0xFFFFFC0000000000
/* mask for extracting %hm */
#define HM_BITS_MASK 0x000003FF00000000
/* mask for extracting %hi */
#define HI_BITS_MASK 0x00000000FFFFFC00
/* mask for extracting %lo */
#define LO_BITS_MASK 0x00000000000003FF
slot->mov_vector_g2 |= vector;
slot->sethi_of_hh_handler_to_g2 |=
(u64_handler & HH_BITS_MASK) >> HH_BITS_SHIFT;
slot->or_g2_hm_handler_to_g2 |=
(u64_handler & HM_BITS_MASK) >> HM_BITS_SHIFT;
slot->sethi_of_handler_to_g3 |=
(u64_handler & HI_BITS_MASK) >> HI_BITS_SHIFT;
slot->jmp_to_low_of_handler_plus_g3 |= (u64_handler & LO_BITS_MASK);
/* need to flush icache after this !!! */
/* need to flush icache in case old trap handler is in cache */
rtems_cache_invalidate_entire_instruction();
}
void _BSP_Exception_frame_print( const CPU_Exception_frame *frame )
{
uint32_t trap;
uint32_t real_trap;
const CPU_Interrupt_frame *isf;
trap = frame->trap;
real_trap = SPARC_REAL_TRAP_NUMBER(trap);
isf = frame->isf;
printk( "Unexpected trap (%2d) at address 0x%08x\n", real_trap, isf->tpc);
switch (real_trap) {
/*
* First the ones defined by the basic architecture
*/
case 0x00:
printk( "reset\n" );
break;
case 0x01:
printk( "instruction access exception\n" );
break;
case 0x02:
printk( "illegal instruction\n" );
break;
case 0x03:
printk( "privileged instruction\n" );
break;
case 0x04:
printk( "fp disabled\n" );
break;
case 0x07:
printk( "memory address not aligned\n" );
break;
case 0x08:
printk( "fp exception\n" );
break;
case 0x09:
printk("data access exception at 0x%08x\n", LEON_REG.Failed_Address );
break;
case 0x0A:
printk( "tag overflow\n" );
break;
/*
* Then the ones defined by the LEON in particular
*/
case LEON_TRAP_TYPE( LEON_INTERRUPT_CORRECTABLE_MEMORY_ERROR ):
printk( "LEON_INTERRUPT_CORRECTABLE_MEMORY_ERROR\n" );
break;
case LEON_TRAP_TYPE( LEON_INTERRUPT_UART_2_RX_TX ):
printk( "LEON_INTERRUPT_UART_2_RX_TX\n" );
break;
case LEON_TRAP_TYPE( LEON_INTERRUPT_UART_1_RX_TX ):
printk( "LEON_INTERRUPT_UART_1_RX_TX\n" );
break;
case LEON_TRAP_TYPE( LEON_INTERRUPT_EXTERNAL_0 ):
printk( "LEON_INTERRUPT_EXTERNAL_0\n" );
break;
case LEON_TRAP_TYPE( LEON_INTERRUPT_EXTERNAL_1 ):
printk( "LEON_INTERRUPT_EXTERNAL_1\n" );
break;
case LEON_TRAP_TYPE( LEON_INTERRUPT_EXTERNAL_2 ):
printk( "LEON_INTERRUPT_EXTERNAL_2\n" );
break;
case LEON_TRAP_TYPE( LEON_INTERRUPT_EXTERNAL_3 ):
printk( "LEON_INTERRUPT_EXTERNAL_3\n" );
break;
case LEON_TRAP_TYPE( LEON_INTERRUPT_TIMER1 ):
printk( "LEON_INTERRUPT_TIMER1\n" );
break;
case LEON_TRAP_TYPE( LEON_INTERRUPT_TIMER2 ):
printk( "LEON_INTERRUPT_TIMER2\n" );
break;
default:
break;
}
}
void _CPU_ISR_install_raw_handler(
uint32_t vector,
proc_ptr new_handler,
proc_ptr *old_handler
)
{
uint32_t real_vector;
CPU_Trap_table_entry *tbr;
CPU_Trap_table_entry *slot;
uint32_t u32_tbr;
uint32_t u32_handler;
/*
* Get the "real" trap number for this vector ignoring the synchronous
* versus asynchronous indicator included with our vector numbers.
*/
real_vector = SPARC_REAL_TRAP_NUMBER( vector );
/*
* Get the current base address of the trap table and calculate a pointer
* to the slot we are interested in.
*/
sparc_get_tbr( u32_tbr );
u32_tbr &= 0xfffff000;
tbr = (CPU_Trap_table_entry *) u32_tbr;
slot = &tbr[ real_vector ];
/*
* Get the address of the old_handler from the trap table.
*
* NOTE: The old_handler returned will be bogus if it does not follow
* the RTEMS model.
*/
#define HIGH_BITS_MASK 0xFFFFFC00
#define HIGH_BITS_SHIFT 10
#define LOW_BITS_MASK 0x000003FF
if ( slot->mov_psr_l0 == _CPU_Trap_slot_template.mov_psr_l0 ) {
u32_handler =
(slot->sethi_of_handler_to_l4 << HIGH_BITS_SHIFT) |
(slot->jmp_to_low_of_handler_plus_l4 & LOW_BITS_MASK);
*old_handler = (proc_ptr) u32_handler;
} else
*old_handler = 0;
/*
* Copy the template to the slot and then fix it.
*/
*slot = _CPU_Trap_slot_template;
u32_handler = (uint32_t) new_handler;
slot->mov_vector_l3 |= vector;
slot->sethi_of_handler_to_l4 |=
(u32_handler & HIGH_BITS_MASK) >> HIGH_BITS_SHIFT;
slot->jmp_to_low_of_handler_plus_l4 |= (u32_handler & LOW_BITS_MASK);
/* need to flush icache after this !!! */
rtems_cache_invalidate_entire_instruction();
}
rtems_isr bsp_spurious_handler(
rtems_vector_number trap,
CPU_Interrupt_frame *isf
)
{
uint32_t real_trap;
real_trap = SPARC_REAL_TRAP_NUMBER(trap);
printk( "Unexpected trap (%2d) at address 0x%08x\n", real_trap, isf->tpc);
switch (real_trap) {
/*
* First the ones defined by the basic architecture
*/
case 0x00:
printk( "reset\n" );
break;
case 0x01:
printk( "instruction access exception\n" );
break;
case 0x02:
printk( "illegal instruction\n" );
break;
case 0x03:
printk( "privileged instruction\n" );
break;
case 0x04:
printk( "fp disabled\n" );
break;
case 0x07:
printk( "memory address not aligned\n" );
break;
case 0x08:
printk( "fp exception\n" );
break;
case 0x09:
printk("data access exception at 0x%08x\n", LEON_REG.Failed_Address );
break;
case 0x0A:
printk( "tag overflow\n" );
break;
/*
* Then the ones defined by the LEON in particular
*/
case LEON_TRAP_TYPE( LEON_INTERRUPT_CORRECTABLE_MEMORY_ERROR ):
printk( "LEON_INTERRUPT_CORRECTABLE_MEMORY_ERROR\n" );
break;
case LEON_TRAP_TYPE( LEON_INTERRUPT_UART_2_RX_TX ):
printk( "LEON_INTERRUPT_UART_2_RX_TX\n" );
break;
case LEON_TRAP_TYPE( LEON_INTERRUPT_UART_1_RX_TX ):
printk( "LEON_INTERRUPT_UART_1_RX_TX\n" );
break;
case LEON_TRAP_TYPE( LEON_INTERRUPT_EXTERNAL_0 ):
printk( "LEON_INTERRUPT_EXTERNAL_0\n" );
break;
case LEON_TRAP_TYPE( LEON_INTERRUPT_EXTERNAL_1 ):
printk( "LEON_INTERRUPT_EXTERNAL_1\n" );
break;
case LEON_TRAP_TYPE( LEON_INTERRUPT_EXTERNAL_2 ):
printk( "LEON_INTERRUPT_EXTERNAL_2\n" );
break;
case LEON_TRAP_TYPE( LEON_INTERRUPT_EXTERNAL_3 ):
printk( "LEON_INTERRUPT_EXTERNAL_3\n" );
break;
case LEON_TRAP_TYPE( LEON_INTERRUPT_TIMER1 ):
printk( "LEON_INTERRUPT_TIMER1\n" );
break;
case LEON_TRAP_TYPE( LEON_INTERRUPT_TIMER2 ):
printk( "LEON_INTERRUPT_TIMER2\n" );
break;
default:
break;
}
/*
* What else can we do but stop ...
*/
__asm__ volatile( "mov 1, %g1; ta 0x0" );
}
