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* OpenSPARC T2 Processor File: n2_err_l2_LDAC_LDWC_noDAC.s
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#define H_HT0_Sw_Recoverable_Error_0x40 My_Recoverable_Sw_error_trap
#define H_HT0_Hw_Corrected_Error_0x63 My_Corrected_ECC_error_trap
#define MAIN_PAGE_HV_ALSO
#define L2_ENTRY_PA 0xa000000000
#define TEST_DATA1 0x5555555555555555
#define L2_ENTRY_PA0 0x30000008
#define L2_ES_W1C_VALUE 0xc03ffff800000000
#define SPARC_ES_W1C_VALUE 0xefffffff
.global My_Recoverable_Sw_error_trap
.global My_Corrected_ECC_error_trap
! Boot code does not provide TLB translation for IO address space
ldxa [%g0] ASI_LSU_CONTROL, %l0
stxa %l0, [%g0] ASI_LSU_CONTROL
setx L2_ES_W1C_VALUE, %l0, %l1
set_L2_Directly_Mapped_Mode:
setx L2CS_PA0, %l6, %g1 ! Bit 1 in L2 Control Status Register
setx TEST_DATA1, %l0, %g5
setx 0x3030aa00, %l0, %g2 ! bits [21:18] select way
setx 0x3ffff8, %l0, %l2 ! Mask for extracting [21:3]
setx L2_ENTRY_PA, %l0, %g4
and %g2, %l2, %g5 !g2 has L2 PA,
or %g5, %g4, %g5 !g5 now has Diagnostic Data Array address
! Flip one bits to inject error
reading_back_0: !Load to L2 again to get the error
setx 0x3030aa00, %l0, %g2
check_sw_err_trap_ldac_0:
! Check if a Software Recoverable Error Trap happened
mov 0x46, %l1 ! 7-bit Syndrome
sllx %l1, 21, %l3 ! Syndrome for [127:96] at [27:21]
sllx %g4, L2ES_TID, %l3 ! ID of thread that encountered error
or %l7, %l3, %l7 ! %l7 has expected value
cmp %l7, %l4 ! l7 has expected value l4 has actula value
setx L2_ES_W1C_VALUE, %l0, %l1
reading_back_1: !Load to L2 again to get the error
setx 0x3030aa00, %l0, %g2
check_sw_err_trap_ldac_1:
! Check if a Software Recoverable Error Trap happened
check_sw_err_trap_ldac_2:
! Check if a Software Recoverable Error Trap happened
check_sw_err_trap_ldac_3:
! Check if a Software Recoverable Error Trap happened
mov 0x46, %l1 ! 7-bit Syndrome
sllx %l1, 21, %l3 ! Syndrome for [127:96] at [27:21]
sllx %g4, L2ES_TID, %l3 ! ID of thread that encountered error
or %l7, %l3, %l7 ! %l7 has expected value
cmp %l7, %l4 ! l7 has expected value l4 has actula value
setx L2_ES_W1C_VALUE, %l0, %l1
write_back_0: !Load to L2 again to evict error
setx 0x7030aa00, %l0, %g2
sllx %g4, L2ES_TID, %l3 ! ID of thread that encountered error
or %l7, %l3, %l7 ! %l7 has expected value
cmp %l7, %l4 ! l7 has expected value l4 has actula value
setx L2_ES_W1C_VALUE, %l0, %l1
! Check if a Software Recoverable Error Trap happened
mov TT_Corrected_ECC, %l0
reading_back_3: !Load to L2 again to get line from mcu, cache miss
setx 0x3030aa00, %l0, %g2
! Check if a Software Recoverable Error Trap happened
ldxa [%g0] ASI_LSU_CONTROL, %l0
stxa %l0, [%g0] ASI_LSU_CONTROL
My_Recoverable_Sw_error_trap:
ldxa [%g0]ASI_DESR, %i5 !! Also clears desr
setx 0x3f00000000000000, %i6, %i7
setx 0x2400000000000000, %i6, %i7
My_Corrected_ECC_error_trap:
ldxa [%g0]ASI_DESR, %i6 !! Also clears desr
setx 0x3f00000000000000, %i7, %i5
setx 0x0900000000000000, %i7, %i4
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